Movable wireless relay device and relay system

Abstract

The utility model relates to the technical field of communication base station equipment, in particular to a movable wireless relay device and a relay system, the wireless relay device comprises a movable base, a relay host, a self-contained power supply device and a wireless transceiving antenna, and the relay host is arranged on the movable base; the built-in power supply device is connected with the relay host and supplies power to the relay host; the wireless transmit-receive antenna is electrically connected to the relay host. According to the movable wireless relay device of the utility model, highly free movement can be realized through the movable base, and network blind compensation can be rapidly carried out; the problems of line dragging and cable loss in the moving process are avoided through a self-contained power supply device and a wireless receiving and transmitting antenna; a plurality of movable wireless relay devices can move freely and realize interconnection through a wireless transceiving antenna, network blind compensation is quickly carried out through free deployment of the movable wireless relay devices, the wireless relay devices are normal in load and free of excessive interference, and the requirements of supporting a large number of unmanned mine cards for low time delay and high bandwidth are met.

Description

Technical Field

[0001] The utility model relates to the technical field of communication base station equipment, in particular to a movable wireless relay device and a relay system. Background Art

[0002] A relay station is a device responsible for receiving and forwarding radio signals. After regenerating and amplifying the signals, it forwards them to the next relay station to ensure the quality of the transmitted signals. Each communication base station is covered by the relay station to a wider communication range.

[0003] For large open-pit coal mines, 5G cellular network communication is usually used to build base stations or relay stations. In the cellular network, it is difficult for high-frequency base stations to achieve effective coverage of more than 1 kilometer in bandwidth. The total length of the mining and stripping working face can reach more than 3 kilometers, and the working environment changes frequently, so it is impossible to install cellular network base stations at fixed positions.

[0004] In order to achieve effective coverage of the mining and stripping working face, generally ultra-high altitude cellular base stations or low-frequency base stations are now used for ultra-long-distance coverage. In this way of building base stations, problems such as excessive load and increased interference are likely to occur, making it difficult to support the low-latency and high-bandwidth requirements of a large number of unmanned mining trucks, and problems such as frequent offline are likely to occur. Summary of the Utility Model

[0005] The utility model provides a movable wireless relay device and a relay system to solve the defects of excessive load and increased interference that are likely to occur when using ultra-high altitude cellular base stations or low-frequency base stations for communication coverage in the prior art, and to achieve ultra-long-distance communication coverage of the mining and stripping working face of large open-pit coal mines.

[0006] The utility model provides a movable wireless relay device, including a movable base, a relay host, a self-powered device and a wireless transceiver antenna. Among them, the relay host is arranged on the movable base; the self-powered device is electrically connected to the relay host to provide power for the relay host; the wireless transceiver antenna is electrically connected to the relay host.

[0007] According to the movable wireless relay device provided by the utility model, a lifting rod is installed on the relay host, and the wireless transceiver antenna is arranged at the lifting end of the lifting rod.

[0008] According to the movable wireless relay device provided by the utility model, the wireless transceiver antenna includes a signal receiving antenna and a signal transmitting antenna. The signal receiving antenna is a log-periodic antenna or a Yagi antenna, and the signal transmitting antenna is a plate-shaped radio frequency antenna.

[0009] According to a movable wireless relay device provided by the present utility model, the signal transmitting antenna is installed on the lifting rod through an angle adjusting device.

[0010] According to a movable wireless relay device provided by the present utility model, an angle-adjustable shielding plate is arranged on the lifting rod, and the shielding plate is located at the back position of the signal transmitting antenna.

[0011] According to a movable wireless relay device provided by the present utility model, the self-powered device includes a solar panel and an inverter. The solar panel is electrically connected to the inverter, and the inverter is electrically connected to the relay host.

[0012] According to a movable wireless relay device provided by the present utility model, the self-powered device further includes a storage battery, and the storage battery is electrically connected to the inverter.

[0013] According to a movable wireless relay device provided by the present utility model, the movable base includes a counterweight base and a plurality of universal wheels arranged below the counterweight base, and the relay host is fixed on the counterweight base.

[0014] According to a movable wireless relay device provided by the present utility model, the movable wireless relay device further includes a wireless remote sensing controller, and the wireless remote sensing controller is used to control the movement of the movable base through wireless remote sensing signals.

[0015] The present utility model further provides a movable wireless relay system, which is applicable to the communication signal coverage of large mining areas. The system includes a plurality of the movable wireless relay devices described in any one of the above. The plurality of movable wireless relay devices are distributed in different areas of the mining area and are interconnected through wireless transceiver antennas to cover all areas of the mining area with communication signals.

[0016] The movable wireless relay device and relay system provided by the present utility model enable the wireless relay device to achieve highly free movement and quickly perform network blind spot compensation through the movable base; replace wired cable power supply with a self-powered device to avoid the increased workload and cable loss problems caused by line dragging during the movement process; perform signal relay through wireless transceiver antennas, no longer use field optical cables for data backhaul, reduce cable movement work, and avoid fiber core damage of a large number of optical cables during movement. A plurality of movable wireless relay devices can move freely and are interconnected through wireless transceiver antennas. Through the free deployment of the movable wireless relay devices, network blind spot compensation can be quickly performed. Even if the working environment changes frequently, large-bandwidth and fast and effective coverage of the working mining area can be achieved. The load of a single movable wireless relay device is normal, without excessive interference, meeting the low-latency and high-bandwidth requirements for supporting a large number of unmanned mining trucks. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the attached drawings required for the description of the embodiments or the prior art. Obviously, the attached drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these attached drawings.

[0018] Figure 1 It is a schematic structural diagram of a movable wireless relay device provided by the present utility model.

[0019] Figure 2 It is a schematic diagram of the working principle of a wireless transceiver antenna provided by the present utility model.

[0020] Figure 3 It is a schematic physical connection diagram of a self-powered device provided by the present utility model.

[0021] Reference numerals: 1, movable base; 101, counterweight base; 102, universal wheel; 2, relay host; 3, lifting rod; 4, signal receiving antenna; 5, signal transmitting antenna; 6, shielding plate; 7, solar panel; 8, inverter. Specific embodiments

[0022] To make the objectives, technical solutions, and advantages of the present utility model clearer, the following will clearly and completely describe the technical solutions in the present utility model in conjunction with the attached drawings in the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0023] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the attached drawings. They are only for the convenience of describing the embodiments of the present utility model 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 should not be construed as a limitation to the embodiments of the present utility model.

[0024] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0025] In the embodiments of the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is less than that of the second feature.

[0026] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0027] The following Figures 1 to 3 describes the structure and working principle of the movable wireless relay device and relay system of the present utility model.

[0028] One embodiment of the present utility model provides a movable wireless relay device. Referring to Figure 1 as shown, it includes a movable base 1, a relay host 2, a self - contained power supply device, and a wireless transceiver antenna. Among them, the relay host 2 is arranged on the movable base 1; the self - contained power supply device is electrically connected to the relay host 2 to provide power for the relay host 2; the wireless transceiver antenna is electrically connected to the relay host 2 through a coaxial cable.

[0029] It can be understood that the movable wireless relay device of this embodiment uses a movable base 1, enabling the wireless relay device to achieve highly free movement and quickly perform network blind spot compensation. Compared with traditional fixed base stations / relay stations, it has higher flexibility. This embodiment uses a self - contained power supply device and wireless transceiver antennas. By using the self - contained power supply device to replace wired cable power supply, it avoids the increased workload and cable loss problems caused by line dragging during movement; by using wireless transceiver antennas for signal relay, it no longer uses field optical cables for data backhaul, reducing cable movement work and avoiding core damage of a large number of optical cables during movement. In some examples, the relay host 2 outputs a 5W radio frequency power, with a signal amplification gain of 90dBm, enabling the coverage distance to increase by 1 kilometer. Multiple movable wireless relay devices can move freely and achieve interconnection through wireless transceiver antennas. Through the free deployment of the movable wireless relay devices, network blind spot compensation can be quickly carried out. This example is applied to the unmanned mining and stripping operation area of a large open - pit coal mine. Even if the operating environment changes frequently, it can achieve large - bandwidth, fast, and effective coverage of the mining area. A single movable wireless relay device has normal load, without excessive interference, meeting the low - latency and high - bandwidth requirements for supporting a large number of unmanned mining trucks.

[0030] In some specific embodiments of a movable wireless relay device of the present utility model, a lifting rod 3 is installed on the relay host 2, and the wireless transceiver antenna is arranged at the lifting end of the lifting rod 3. Through the setting of the lifting rod 3, different cable heights can be set according to the scenario requirements. When the wireless relay device moves, the lifting rod 3 is retracted to facilitate movement. After moving to the target position, according to the scenario requirements, the height of the lifting rod 3 is adjusted so that the wireless transceiver antenna can work at an appropriate height for signal receiving and transmitting.

[0031] In some specific examples, the wireless transceiver antenna includes a signal receiving antenna 4 and a signal transmitting antenna 5. The signal receiving antenna 4 is a log - periodic antenna or a Yagi antenna, and the signal transmitting antenna 5 is a plate - shaped radio frequency antenna. In this example, signal reception is carried out through a log - periodic antenna or a Yagi antenna, and outdoor high - power plate - shaped antennas are used for signal amplification. Coaxial cables are used for signal transmission between the wireless relay device and the antennas. Refer to Figure 2 As shown, the input signal is received by the log - periodic antenna and transmitted to the relay host 2. The relay host 2 provides a signal gain of 90dBm, and the 2.1G frequency band can extend the coverage range by 1 kilometer. After the relay host 2 amplifies the signal, it transmits the signal to a distance through the plate - shaped radio frequency antenna.

[0032] Further, in order to enhance the signal transmission efficiency, in some specific examples, the signal transmitting antenna 5 is installed on the lifting rod 3 through an angle adjustment device. It can be understood that the angle adjustment device can be used to adjust the vertical angle of signal transmission of the signal transmitting antenna 5. The signal transmitting antenna 5 can be a plate-shaped radio frequency antenna, which is a directional antenna that radiates in a certain angle range in the horizontal direction and a beam with a certain width in the vertical direction. The use of a plate-shaped radio frequency antenna can realize the transmission of communication signals over a long distance in the horizontal direction with a higher gain. In this example, the vertical distance of the plate-shaped radio frequency antenna can be adjusted by the angle adjustment device, which increases the vertical coverage of the signal with a high gain transmission over a long distance to a certain extent. By lifting the lifting rod 3 and adjusting the vertical angle of the angle adjustment device, the coverage and signal transmission area of ​​the signal transmitting antenna 5 can be increased.

[0033] In other specific examples, the structure of a movable wireless relay device of the utility model is provided with an adjustable angle shielding plate 6 on the lifting rod 3, and the shielding plate 6 is located at the back of the signal transmitting antenna 5. It can be understood that whether it is a low-power or high-power wireless repeater, or an analog or digital wireless repeater, due to the excessive gain, self-excitation problems will inevitably occur. Self-excitation means that the repeater transmits a signal, and through spatial coupling, part of the useful signal is reflected and delayed through space, and finally returns to the receiving antenna of the repeater. The signal is a coupled echo signal. If the isolation of the repeater is less than the gain of the repeater, the echo signal will be amplified to form positive feedback, thereby generating oscillation, causing system instability, and causing the self-excitation problem of the repeater. The signal transmitting antenna 5 in this example is only used for signal transmission, not as a signal receiving antenna. The signal transmitting antenna 5 uses a plate-shaped radio frequency antenna, which is a directional transmitting radio frequency antenna, and on its back, it is subjected to the backward signal of the plate-shaped antenna, which will inevitably form self-excitation. In this example, a shielding plate 6 is set at the back of the signal transmitting antenna 5. The shielding plate 6 can be a 5 mm metal plate. The shielding plate 6 with an adjustable angle can suppress the backward signal of the plate antenna, reduce the back signal of the RF antenna, and avoid self-excitation of the signal transmitting antenna 5 system.

[0034] It should be understood that the shielding plate 6, as a shielding device for the back-facing signal of the signal transmitting antenna 5, needs to be consistent with the angle of the signal transmitting antenna 5 to achieve the maximum shielding effect. In some specific examples, the angle adjustment mechanism of the shielding plate 6 can be installed in conjunction with the angle adjustment device of the signal transmitting antenna 5, that is, when the angle of the signal transmitting antenna 5 is adjusted, the angle of the shielding plate 6 will also be adjusted at the same time, and the angle of the shielding plate 6 is always kept consistent with the angle of the signal transmitting antenna 5, so as to achieve the maximum shielding effect and prevent the signal transmitting antenna 5 from self-excitation.

[0035] In some other embodiments of a movable wireless relay device of the present utility model, the self - contained power supply device includes a solar panel 7 and an inverter 8. Refer to Figure 3 As shown, the solar panel 7 is electrically connected to the inverter 8, and the inverter 8 is electrically connected to the relay host 2. In some specific examples, a 1 - meter solar panel is used for the solar panel 7 to provide energy for the system. The solar panel 7 absorbs solar energy and is converted into alternating current by the inverter 8 to supply power to the relay host 2, reducing a large amount of cable retracting and releasing work when the vehicle moves. At the same time, there will be no problems such as cable wear and breakage, reducing energy costs and facilitating deployment. Further, the self - contained power supply device further includes a storage battery. Refer to Figure 3 As shown, the storage battery is electrically connected to the inverter 8. The storage battery is configured to provide uninterrupted power on cloudy days. In some specific examples, 2 groups of 12V300Ah storage batteries are used, which can ensure uninterrupted power for 4 consecutive days, meet more than 97% of the on - site usage, and are convenient for disassembly and charging back at the station.

[0036] A movable wireless relay device provided by the present utility model realizes the free movement of the wireless relay device through the movable base 1. In some specific embodiments, the movable base 1 includes a counterweight base 101 and a plurality of universal wheels 102 arranged below the counterweight base 101, and the relay host 2 is fixed on the counterweight base 101. In some specific examples, a four - wheel cart is used as the movable base 1, and a 100 - kilogram counterweight base 101 is used to ensure the stability of the device during movement and prevent it from tipping over easily; 10 - inch large wheels are used for the universal wheels 102 to adapt to the harsh road conditions in the mining area. By using a four - wheel cart as the movable base 1, it can be easily moved at any time, especially suitable for areas with changing environments in open - pit mines, facilitating free deployment and quickly conducting network blind spot supplementation.

[0037] In some other embodiments of a movable wireless relay device provided by the present utility model, the movable wireless relay device further includes a wireless remote sensing controller, which is used to control the movement of the movable base 1 through wireless remote sensing signals. Specifically, a position sensor can be set on the wireless relay device to form a positioning system, and the position of the wireless relay device is displayed in real - time on the wireless remote sensing controller in the remote base; a camera can also be set on the wireless relay device. After wireless connection with the corresponding wireless relay device is achieved on the wireless remote sensing controller in the remote base, the image captured by the camera can be transmitted to the remote wireless remote sensing controller in real - time. The wireless relay device is controlled to move through the wireless remote sensing controller, and the angle of the signal transmitting antenna 5 can be adjusted until the wireless relay device moves to a suitable position and the signal transmitting angle of the signal transmitting antenna 5 is adjusted, realizing network blind spot supplementation in the area.

[0038] On the other hand, the present utility model also provides a movable wireless relay system, which is applicable to the communication signal coverage of large mining areas and includes a plurality of movable wireless relay devices in any one of the above embodiments. The plurality of movable wireless relay devices are distributed in different areas of the mining area and are interconnected through wireless transceiver antennas to cover all areas of the mining area with communication signals.

[0039] It can be understood that in the unmanned mining and stripping areas of large open-pit mining areas, the operating environment changes frequently, and it is impossible to install fixed-position cellular network base stations. Multiple movable wireless relay devices of the present utility model can be distributed to different positions in the mining area and interconnected to achieve effective large-bandwidth coverage of the entire mining area. As the mining operation progresses and the operating environment changes, at this time, the positions of the wireless relay devices can be adjusted and the signal transmission and reception angles can be adjusted to ensure that the signals can cover the entire mining area in real time. Specifically, in some specific examples, after multiple movable wireless relay devices are placed in the mining area, the positions and simulated signal transmission angles of each wireless relay device can be displayed on a wireless remote sensing controller or on the display screen of a remote control host. According to the final transmission signal results, it can be judged whether the entire area can be covered. When a signal blind area appears, the positions and signal angles of the nearby wireless relay devices can be adjusted to perform network blind area compensation to ensure real-time omnidirectional coverage of the network signal.

[0040] It can be understood that multiple movable wireless relay devices in the mining area use solar energy to replace wired cable power supply, avoiding the increased workload and cable loss problems caused by line dragging during the movement process. At the same time, a storage battery is configured to provide uninterrupted power supply on cloudy days; a wireless repeater device is used for signal relay, and field optical cables are no longer used for data backhaul. Signal reception is performed through log-periodic or Yagi antennas, and an outdoor high-power panel antenna is used for signal amplification; a four-wheel cart equipped with a liftable pole is used as the movable base 1 to achieve the ability to move freely in height, which is convenient for deployment. Multiple movable wireless relay devices are arranged in different positions in the mining area to achieve signal interconnection and effective large-bandwidth coverage of the entire mining area; wireless remote control adjustment is performed through a remote wireless remote sensing controller or control host, which saves time and effort and reduces labor costs.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A mobile wireless relay device, characterized in that: include: A movable base (1); A relay host (2) is arranged on the movable base (1), a lifting rod (3) is installed on the relay host (2), and a shielding plate (6) with an adjustable angle is arranged on the lifting rod (3); A self-contained power supply device is electrically connected to the relay host (2) to provide power to the relay host (2); A wireless transceiver antenna is arranged at the lifting end of the lifting rod (3) and is electrically connected to the relay host (2). The wireless transceiver antenna includes a signal receiving antenna (4) and a signal transmitting antenna (5). The signal transmitting antenna (5) is installed on the lifting rod (3) through an angle adjustment device. The shielding plate (6) is located at the back of the signal transmitting antenna (5).

2. The mobile wireless relay device according to claim 1, characterized in that: The signal receiving antenna (4) is a logarithmic periodic antenna or a Yagi antenna, and the signal transmitting antenna (5) is a plate-shaped radio frequency antenna.

3. The mobile wireless relay device according to claim 1 or 2, characterized in that: The self-contained power supply device comprises a solar panel (7) and an inverter (8), wherein the solar panel (7) is electrically connected to the inverter (8), and the inverter (8) is electrically connected to the relay host (2).

4. The mobile wireless relay device according to claim 3, characterized in that: The self-contained power supply device also includes a battery, and the battery is electrically connected to the inverter (8).

5. The mobile wireless relay device according to claim 1 or 2, characterized in that: The movable base (1) comprises a counterweight base (101) and a plurality of universal wheels (102) arranged below the counterweight base (101), and the relay host (2) is fixed on the counterweight base (101).

6. The mobile wireless relay device according to claim 1 or 2, characterized in that: The movable wireless relay device also includes a wireless remote sensing controller, which is used to control the movement of the movable base (1) through wireless remote sensing signals.

7. A mobile wireless relay system, characterized in that: The invention is suitable for communication signal coverage of large mining areas, comprising a plurality of movable wireless relay devices as described in any one of claims 1 to 6, wherein the plurality of movable wireless relay devices are distributed in different areas of the mining area, and signal interconnection is achieved through wireless transceiver antennas to provide communication signal coverage to all areas of the mining area.

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