CN216216890U - Mobile wireless data relay device - Google Patents
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- CN216216890U CN216216890U CN202122660126.XU CN202122660126U CN216216890U CN 216216890 U CN216216890 U CN 216216890U CN 202122660126 U CN202122660126 U CN 202122660126U CN 216216890 U CN216216890 U CN 216216890U
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Abstract
The utility model discloses a mobile wireless data relay device, which comprises an uplink gateway, a downlink hotspot, switches, POE power supply merging/separating devices P1, P2, P3 and P4 which are arranged on a wheeled trolley, and a power supply module for supplying power to equipment in an electric box; the uplink gateway is used for establishing connection with an office network, and a downlink LAN port of the uplink gateway is connected with an uplink LAN port of the switch through POE power supply merging/separating devices P3 and P1, so that the switch is accessed to the network through the uplink gateway; the downstream port of the switch is connected with the downstream hotspot through POE power supply merging/separating devices P2 and P4, so that the downstream hotspot is accessed into the network through the switch and the upstream gateway, and network access service is provided for the signal blind area. The utility model has smaller volume, is more convenient to move and transport, does not need to install optical fibers and network cables, can use an external storage battery for power supply even without an alternating current power supply, can be quickly deployed and quickly recovered, can adjust deployment according to the construction progress, and has low installation and maintenance cost.
Description
Technical Field
The utility model relates to the technical field of wireless data relay communication, in particular to a mobile wireless data relay device.
Background
The water conservancy and hydropower construction engineering usually relates to mountainous areas, canyons and tunnel operation, along with the improvement of the level of the construction informatization degree, more and more engineering machines and measuring equipment are designed with informatization functions of automatic information acquisition, automatic report forms, automatic diagnosis, remote analysis, automatic operation, unmanned driving, remote management and the like, most of the informatization functions of the engineering machines can be normally used only by being accessed into a network, the mountainous areas, the canyons and the tunnels are usually network blind areas and do not have network access conditions, the cost for installing a wireless local area network for each working face in construction is high, the workload is large, and the informatization functions of the engineering machines are difficult to effectively realize. The traditional method for solving the signal blind area data communication is to install optical fibers or network cables to a construction area, and install wireless hotspots after wired access, so that the network installation work amount is large, the cost is high, the adjustment is needed at any time along with the construction progress, and the later maintenance cost is high.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, an object of the present invention is to provide a mobile wireless data relay device, which can provide convenient network access service for construction areas with signal blind areas such as canyons and tunnels, so that data of engineering machinery and measuring equipment in the signal blind areas can be connected to a network in an office area, and ensure that a telematics function thereof can be normally used. The technical scheme is as follows:
a mobile wireless data relay device comprises a wheel type trolley, wherein a telescopic antenna mast and a sealed electric box are arranged on the wheel type trolley; an uplink gateway NG1 and a downlink hotspot NB2 are arranged on the telescopic antenna mast; the electrical box is internally provided with a switch NS1, POE power supply merging/separating devices P1, P2, P3 and P4 and a power supply module for supplying power for the whole device;
the uplink gateway NG1 is used for establishing connection with an office network, and a downlink LAN port of the uplink gateway NG1 is connected with an uplink LAN port of the switch NS1 through POE power supply merger/splitter P3 and P1, so that the switch NS1 is accessed to the network through the uplink gateway NG 1;
the switch NS1 downlink port is connected with the downlink hotspot NB2 through POE power supply merging/separating devices P2 and P4, so that the downlink hotspot NB2 is accessed to the network through the switch NS1 and the uplink gateway NG1, and network access service is provided for the signal blind area.
Furthermore, the power supply module comprises a storage battery floating power supply module U0, an external storage battery Bt2, a built-in backup storage battery Bt1 and a direct current voltage stabilizing module;
the alternating current input side of the storage battery floating impulse power supply module U0 is connected with an alternating current power supply or a micro generator through an anti-creeping protection breaker QF1, the direct current output side supplies power through each direct current voltage stabilizing module through a direct current breaker QF2,
the external storage battery Bt2 is connected between the direct current breaker QF2 and the direct current output side of the storage battery floating power supply module U0 through a contact KA1A of an anti-reverse relay KA 1;
the positive pole of the built-in storage battery Bt1 is also connected between the direct current breaker QF2 and the direct current output side of the storage battery floating power supply module U0 through a current limiting resistor R1 connected in series with the built-in storage battery Bt1, and the negative pole of the built-in storage battery Bt1 is connected to the external storage battery Bt2 through a coil KA1B of an anti-reverse connection relay KA1 and an anti-reverse connection diode D1.
Furthermore, the output side of the dc breaker QF2 is connected to a dc voltage monitoring module BM1, and the dc voltage monitoring module BM1 is connected to the switch NS1 through an RJ45 interface, and is used for sending battery voltage information to the network address of the device.
Furthermore, the ac input side of the battery float power supply module U0 is also connected to a cable reel JP1 via a cable connector CN1, and the cable reel JP1 is fixed to the wheeled cart.
Furthermore, an upper beam and a bottom plate are arranged on the wheeled trolley, the electric box is suspended on the upper beam, and a rain-proof plate is arranged on the upper beam; and the external storage battery Bt2 is fixed on the bottom plate.
Compared with the prior art, the utility model has the beneficial effects that: the mobile wireless data relay device has the advantages of small volume, convenient movement and transportation, no need of installing optical fibers and network cables, capability of supplying power by using an external storage battery even without an alternating current power supply, rapid deployment and recovery, capability of adjusting deployment along with construction progress and low installation and maintenance cost.
Drawings
Fig. 1 is a diagram showing a structure of a mobile data wireless relay device.
Fig. 2 is a schematic circuit diagram of a mobile data wireless repeater.
Fig. 3 is a schematic diagram of an application of the mobile data wireless relay device.
In the figure: 1-wheeled trolleys; 2-an electric box; 3-a bottom plate; 4-telescoping mast; 5-rain-proof plate; 6-upper beam; 7-antenna mast ground connection; 8-connecting a ground wire of the vehicle body; 9-office area; 10-access relay station; 11-an intermediate relay station; 12-a construction machine; bt 2-external battery pack; JP 1-cable reels; NG 1-upstream gateway; NB2 — downstream hotspot.
Detailed Description
The utility model is described in further detail below with reference to the figures and specific embodiments.
The mobile wireless data relay device establishes wireless connection with an office area network through a WLAN or a mobile communication network, forwards network signals to a signal blind area and provides network access service for equipment in the blind area. The first relay device can be accessed to a wireless network of an office area through a directional wireless network bridge, and can also be accessed to the Internet through 4G, 5G and other mobile networks, the wireless data relay device provides directional WLAN signals for a signal blind area, the directional WLAN signals can be transmitted for a distance of thousands of meters, so that the network extends to the signal blind area, if one relay device cannot cover the blind area due to a corner, an obstacle and the like, a plurality of relay devices can be adopted for relay, and the engineering machinery and the measuring equipment can be accessed to the Internet or a designated local area network through the WLAN signals of any one relay device.
As shown in fig. 1, the mobile wireless data relay device is structurally composed of a wheeled cart 1, an electric box 2, a telescopic antenna mast 4, an antenna mast ground wire 7, a vehicle body ground wire 8, an external storage battery Bt2, a cable reel JP1 disc, an uplink gateway NG1 and a downlink hotspot NB2, wherein all the components are loaded in the wheeled cart 1, and the trolley is made of metal, can be transported to each construction site by a transport vehicle and placed, and can move within a certain range.
The upper part of the wheeled handcart is provided with a rain-proof plate 5 which shields the electric box 2, the storage battery Bt2 and the like at the lower part from rainwater and sundries. The lower part of the wheeled handcart is provided with a bottom plate 3 which provides support for components such as a storage battery, a cable reel and the like, and when the wheeled handcart is used in a windy area, counterweight objects such as iron blocks, stones and the like can be placed on the bottom plate 3. The totally-enclosed electrical box 2 is hung on the upper beam 6 of the trolley, and the rain-proof plate 5 protects the electrical box 2 to prevent rainwater from wetting the electrical box.
A storage battery Bt2 is fixed on the bottom plate, and provides electric energy for each electric component in power failure or in a non-electric area, and two small-sized built-in storage batteries are arranged in the electric box, and the built-in storage batteries uninterruptedly supply power to each component when the external storage battery Bt2 is replaced. The cable reel JP1 is further fixed on the bottom plate, the cable reel JP1 is used for accommodating an alternating current power supply cable, one end of the cable reel is connected with the electric box, the other end of the cable reel can be connected with a power supply of a construction place and can also be connected to a small-sized generator to provide electric energy for the electric box and all parts, and when the alternating current power supply cable is connected with the alternating current power supply, the internal storage battery in the external storage battery Bt2 and the electric box can also be charged through the power supply module in the distribution box.
The telescopic antenna mast 4 is fixed on the wheel-type trolley, the telescopic antenna mast 4 is a multi-section stainless steel hollow mast, threads are used between sections to hold tightly, the wire-opening mast can be retracted or pulled out by loosening the nut so as to adjust the height of the wire-opening mast, the two adjacent sections of antenna masts can be locked and kept in good electrical connection by fastening the nut, and the telescopic antenna mast 4 and the trolley body are locked by using a metal hoop so as to keep the telescopic antenna mast and the trolley body in reliable electrical connection.
An uplink gateway NG1 is installed on the upper portion of the telescopic antenna mast 4, the installation position of the uplink gateway is lower than the height of the telescopic antenna mast, the orientation of the NG1 can be adjusted, and if a wireless directional wireless bridge is selected as the uplink gateway NG1, the front of directional wireless faces the direction of an access network. If the relay is difficult when the number of obstacles between the uplink gateway and the office area is large, the uplink gateway can use the mobile communication gateway to enable the relay device to be accessed to the internet through the mobile network, and therefore data intercommunication between the uplink gateway and the office area is achieved through the internet.
A downlink hotspot NB2 is installed on the upper part of the telescopic antenna mast 4, the installation position of the downlink hotspot NB2 is lower than the height of the telescopic antenna mast, and the orientation of the NB2 can be adjusted, so that WLAN signals of the telescopic antenna mast can be transmitted to a network signal blind area or a next-stage relay station, and the WLAN hotspot service of network access can be provided for the network signal blind area.
The downstream hotspot NB2 of the upstream gateway NG1 is connected through an exchange in the electrical box 2, and the electrical box 2 supplies power to the upstream gateway and the downstream hotspot in a POE power supply mode using twisted pairs. The twisted pairs of NG1 and NB2 can be routed from the hollow interior of the telescopic mast to the lower portion of the wheeled dolly, and out the lower portion of the telescopic mast to the electrical box 2.
The lower part of the telescopic antenna rod 4 is fastened with a grounding wire 7, the grounding wire can be connected with a grounding grid of a construction site or grounded by using a grounding electrode, the other side of the trolley is provided with a grounding wire 8, the grounding wire 8 can also be connected with the grounding grid of the construction site or grounded by using the grounding electrode, and the grounding wire 7 and the grounding wire 8 are grounded separately to ensure the grounding effect.
As shown in fig. 2, the circuit of the mobile wireless data relay device is composed of a cable reel JP1, a cable connector CN1, a leakage-proof protection breaker QF1, an ac FUSE1 and FUSE2, a battery floating power supply module U0, an external battery Bt2, a battery connector CN2, an external battery FUSE4, a battery reverse connection prevention diode D1, a battery reverse connection prevention relay KA1, a built-in backup battery FUSE3, a current-limiting resistor R1, a built-in backup battery Bt1, a dc breaker 2, a dc ammeter V1, a dc voltage monitoring module BM1, dc voltage stabilizing modules U1 to U5, an exchanger NS1, POE power supply merging/separating devices P1 to P4, a downstream hot spot NB2, and an upstream gateway 1.
The cable head L, N of the cable reel JP1 can be connected to an alternating current power supply or a micro generator in a rotating place to obtain electric energy, PE is a grounding protection wire, in order to ensure that the connection of the PE wire is reliable, a central conductive slip ring is not used by the cable reel, the cable reel can rotate freely when the connector CN1 is disconnected so as to be convenient for the operation of winding and unwinding the cable, CN1 is a heavy-load connector of a 2-core metal shell, and the PE protection wire is connected through threads of the connector shell so as to ensure reliable connection.
The alternating current power supply loop is provided with an anti-leakage protection breaker QF1, an alternating current FUSE1 and a FUSE2, the QF1 is used for gate protection when the circuit is in an abnormal state such as overcurrent and leakage and is also an operation switch for turning off an alternating current power supply, and the alternating current FUSE1 and the FUSE2 are used for providing protection when the alternating current power supply is in a short circuit state.
The voltage levels of the storage battery floating impulse power supply module U0, the external storage battery Bt2 and the internal storage battery Bt1 are the same, and a 24V storage battery pack is usually used.
When the cable reel is connected with an alternating current power supply, the storage battery floating power supply module U0 supplies power to the direct current voltage stabilizing modules U1-U5 of the circuit through the direct current breaker QF 2.
When the cable reel is connected with an alternating current power supply, the output voltage of the storage battery floating power supply module U0 is slightly higher than the voltage of the built-in storage battery Bt1, and the U0 charges the built-in storage battery through the FUSE3 and the current limiting resistor R1.
The external storage battery is connected with the storage battery floating power supply module U0 through the connector CN2, the FUSE4 and the contact KA1A of the anti-reverse relay KA 1. If the connector CN2 is disconnected and the external storage battery is replaced, the coil KA1B of the anti-reverse relay KA1 is powered off by the disconnected CN2, and the contact KA1A of the anti-reverse relay KA1 is disconnected; if the external storage battery is connected and the wiring is correct, a positive power supply of the external storage battery forms a passage through the connector CN2, the anti-reverse connection diode D1 and the coil KA1B of the anti-reverse connection relay KA1, the contact KA1A of the anti-reverse connection relay KA1 is attracted, the external storage battery Bt2 is connected with the storage battery floating power supply module U0, if the external storage battery Bt2 is connected in a wrong mode, the anti-reverse connection diode D1 is cut off in a reverse bias mode, the coil KA1B of the anti-reverse connection relay KA1 is powered off, the external storage battery is in a disconnected state, and the external storage battery is prevented from being connected with the storage battery floating power supply module U0 and the built-in storage battery Bt1 in a reverse connection mode to generate short circuit.
The built-in storage battery Bt1 is connected with a current-limiting resistor R1 in series, if the voltage of the external storage battery Bt2 is not equal to that of the built-in storage battery Bt1, the current-limiting resistor R1 limits the current between Bt1 and Bt2 during mutual charging, the resistance value of R1 is lower, and the resistance value can be 0.1 Ω.
When the cable reel JP1 is connected with an alternating current power supply and an external storage battery is connected, the output voltage of the storage battery floating and rushing power supply module U0 is slightly higher than the voltage of the external battery Bt2, and the storage battery floating and rushing power supply module U0 charges the external storage battery through KA1A, FUSE4 and CN 2.
If the cable reel JP1 does not receive an alternating current power supply and the external storage battery is correctly connected, the external storage battery Bt2 supplies power to the voltage stabilizing modules U1 to U5 through the connectors CN2, FUSE4, KA1A and QF2, and the built-in storage battery Bt1 supplies power to the voltage stabilizing modules U1 to U5 through R1 and FUSE 3.
If the cable reel is not connected with alternating current and the external storage battery is low in electric quantity, the external storage battery can be replaced, when the connector CN2 is disconnected and the external storage battery is replaced, the built-in storage battery supplies power to the voltage stabilizing modules U1-U5 through R1 and FUSE3, and therefore continuous uninterrupted work of all devices is guaranteed.
The output side of the direct current breaker QF2 is connected with a direct current ammeter V1 and a direct current voltage monitoring module BM1, the direct current ammeter V1 is used for displaying direct current voltage, the direct current voltage monitoring module BM1 is connected with a switch NS1 through an RJ45 interface, the BM1 measures a direct current voltage value and converts the direct current voltage value into data information to be sent to a network address of equipment, and if the direct current voltage is too low, the BM1 sends a storage battery low voltage alarm to a set network address to prompt the storage battery to be replaced.
And a plurality of adjustable direct current voltage reduction and stabilization modules U1-U5 are connected to the direct current output side of the direct current breaker QF2, the U1-U5 provide direct current voltage for each low-voltage electric component, the U3 provides power for the switch NS1, the U1 voltage stabilization output voltage is transmitted to a POE power supply merging/separating device P1 (the power is merged with a network twisted pair), and is transmitted to a POE power supply merging/separating device P3 (the power is separated from the network) through the twisted pair, and the P3 supplies power for the uplink gateway.
The uplink gateway NG1 is used for establishing connection with an office network, the uplink gateway NG1 can use a directional wireless bridge, the transmission distance of the directional wireless bridge is long, and direct connection with an office area wireless local area network can be established at a long distance; if the office area is far from the construction area and the number of obstacles is large, the uplink gateway can also use a mobile communication gateway to connect the wireless data relay device to the mobile communication network in the forms of GSM, 4G, 5G and the like, and the data relay device and the office area network carry out different-place networking to realize data intercommunication.
The downstream LAN port of the upstream gateway NG1 is connected to the upstream LAN port of the switch NS1 through POE power combiners/splitters P3 and P1, and the switch NS1 accesses the network through the upstream gateway NG 1.
The switch NS1 downlink port is connected with the downlink hotspot NB2 through POE power supply merger/splitter P2 and P4, the downlink hotspot NB2 accesses the network through switch NS1 and uplink gateway NG1, the downlink hotspot faces signal blind areas such as canyons and tunnel depths where the engineering mechanical equipment is located, WLAN wireless signals are sent to the signal blind areas, network access service is provided for the signal blind areas, and if the signal blind areas needing network access and the mobile wireless data relay devices of the access points are not in a straight line (such as bent tunnels or continuous barrier blocking), relay can be carried out by using a plurality of mobile wireless data relay devices.
The dc voltage-reducing and voltage-stabilizing module U2 is fed to the POE power supply combiner/splitter P4 (power supply and network separated) through the POE power supply combiner/splitter P2 (power supply and network twisted pair combined) and twisted pair to supply power to the downstream hot spot.
The switch NS1 provides data interworking for upstream gateways and downstream hotspots, while providing sufficient backup LAN access ports for mobile wireless data relay devices.
The direct current voltage stabilizing modules U4 and U5 provide a standby power supply interface for the mobile wireless data relay device, so that the mobile wireless data relay device can be conveniently expanded in function in use. For example, the mobile wireless data relay device can be provided with a microcomputer and a touch screen, the microcomputer and the touch screen are powered by U4 and U5, and the microcomputer is accessed to a network through a switch NS1 and provides functions of data storage, data processing and the like for equipment on a construction site; as another example, a webcam may be connected to the LAN of U4 and U5 and switch NS1 to monitor the operating environment around the mobile wireless data relay device.
As shown in the application schematic diagram of the mobile wireless data relay device in fig. 3, the work of equipment informatization remote management is located in an office area 9, the engineering machinery 12 needing to access a management network works in a tunnel, the work tasks, process parameters and the like of the equipment remote management in the office area 9 need to be transmitted to the engineering machinery 12 through the network, the task execution report forms, the energy consumption usage, the key parameters and the fault conditions of the engineering machinery 12 need to be uploaded to the office area through the network for remote management, no network signal exists at the location of the engineering machinery 12 due to the shielding effect of the tunnel mountain, the network connection needs to be established between the engineering machinery 12 and the office area 9, as shown in fig. 3, 3 mobile wireless relay devices are used to establish network connection for the engineering machinery 12, the first mobile wireless data relay device is referred to as an access relay station 10 for short, the access relay station is placed at the location outside the tunnel with the network, the uplink gateway of the access relay station can be connected with a wireless local area network of an office area, if the office area is in a visible area of the access relay station, the uplink gateway of the access relay station can use a directional wireless network bridge, the direction of the uplink gateway is connected with a network hotspot of the office area, the access station is connected with the office area through the internet, if the access station is limited by geographical conditions or environment and is not in the visible area, the uplink gateway can use a mobile network access gateway, the access relay station is connected with the internet through a mobile communication network, the downlink hotspot of the access relay station uses a wireless directional hotspot, a network signal is forwarded to a tunnel by a WLAN signal, two intermediate relay stations 11 are arranged in the tunnel, the uplink gateway uses the wireless directional network bridge and is directed to an upper-stage mobile wireless data relay device to be connected with the upper-stage relay device, the downlink hotspot uses a wireless directional hotspot, and the direction of the downlink hotspot faces to a next-stage mobile wireless data relay device or to equipment needing to be accessed to the network, so that the engineering machinery 12 is connected to the network through the data relay, and data intercommunication with an office area is realized, and the remote management function of the equipment can be normally used. If an alternating current power supply exists in the tunnel, the mobile wireless data relay device can be powered by the alternating current power supply, if the alternating current power supply does not exist in the tunnel, the mobile wireless data relay device can be powered by the micro generator, the mobile wireless data relay device can also be powered by a fully charged external storage battery, the mobile wireless data relay device only consumes tens of watts of power, 2 200AH external storage batteries can be used for continuously powering for a plurality of days, a direct current voltage monitoring module BM1 in the electric box sends a low-voltage alarm signal to a specified network address when the electric quantity of the storage battery is low, the external storage battery is prompted to be replaced in time, and the storage battery arranged in the electric box is used for supplying power to all parts to keep network service uninterrupted during replacement of the external storage battery.
If the mobile wireless data relay device provides network service for canyons and other places, the uplink gateway uses the mobile network access gateway and is placed in a region covered by the mobile network at a higher position, the downlink hotspot inclines downwards to face a construction region in the canyon to provide WLAN hotspot service for the construction region, so that engineering machinery and measuring equipment in the construction region can be connected to the network, two grounding wires are reliably connected with the ground respectively to ensure lightning protection performance, the height of an antenna mast can be reduced in windy weather, and a counterweight is added to prevent rollover caused by strong wind.
The traditional method for solving the signal blind area data communication is to install optical fibers or network cables to a construction area, and install wireless hotspots after wired access, so that the network installation work amount is large, the cost is high, the adjustment is needed at any time along with the construction progress, and the later maintenance cost is high. Compared with the traditional scheme, the mobile wireless data relay device is small in size, convenient to move and transport, free of installation of optical fibers and network cables, capable of being powered by an external storage battery even without an alternating current power supply, capable of being deployed and rapidly recovered, capable of being adjusted and deployed along with construction progress, and low in installation and maintenance cost.
Claims (5)
1. A mobile wireless data relay device is characterized by comprising a wheeled trolley (1), wherein a telescopic antenna rod (4) and a sealed electric box (2) are arranged on the wheeled trolley (1); an uplink gateway NG1 and a downlink hot spot NB2 are arranged on the telescopic antenna mast (4); the electrical box (2) is internally provided with a switch NS1, POE power supply merging/separating devices P1, P2, P3 and P4 and a power supply module for supplying power for the whole device;
the uplink gateway NG1 is used for establishing connection with an office network, and a downlink LAN port of the uplink gateway NG1 is connected with an uplink LAN port of the switch NS1 through POE power supply merger/splitter P3 and P1, so that the switch NS1 is accessed to the network through the uplink gateway NG 1;
the switch NS1 downlink port is connected with the downlink hotspot NB2 through POE power supply merging/separating devices P2 and P4, so that the downlink hotspot NB2 is accessed to the network through the switch NS1 and the uplink gateway NG1, and network access service is provided for the signal blind area.
2. The mobile wireless data relay device according to claim 1, wherein the power supply module comprises a battery floating power supply module U0, an external battery Bt2, an internal backup battery Bt1 and a direct current voltage stabilizing module;
the alternating current input side of the storage battery floating impulse power supply module U0 is connected with an alternating current power supply or a micro generator through an anti-creeping protection breaker QF1, the direct current output side supplies power through each direct current voltage stabilizing module through a direct current breaker QF2,
the external storage battery Bt2 is connected between the direct current breaker QF2 and the direct current output side of the storage battery floating power supply module U0 through a contact KA1A of an anti-reverse relay KA 1;
the positive pole of the built-in storage battery Bt1 is also connected between the direct current breaker QF2 and the direct current output side of the storage battery floating power supply module U0 through a current limiting resistor R1 connected in series with the built-in storage battery Bt1, and the negative pole of the built-in storage battery Bt1 is connected to the external storage battery Bt2 through a coil KA1B of an anti-reverse connection relay KA1 and an anti-reverse connection diode D1.
3. The mobile wireless data relay device as claimed in claim 2, wherein the output side of the dc breaker QF2 is connected with a dc voltage monitoring module BM1, and the dc voltage monitoring module BM1 is connected to the switch NS1 through an RJ45 interface for transmitting the battery voltage information to the network address of the device.
4. A mobile wireless data relay device according to claim 2, characterized in that the ac input side of the battery float supply module U0 is further connected with a cable reel JP1 through a cable connector CN1, said cable reel JP1 being fixed to the wheeled cart (1).
5. A mobile wireless data relay device according to claim 2, wherein the wheeled cart (1) is provided with an upper beam (6) and a floor (3), the electrical box (2) is suspended from the upper beam (6), and a rain shield (5) is further provided on the upper beam (6); the external storage battery Bt2 is fixed on the bottom plate (3).
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| CN202122660126.XU CN216216890U (en) | 2021-11-02 | 2021-11-02 | Mobile wireless data relay device |
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| CN202122660126.XU CN216216890U (en) | 2021-11-02 | 2021-11-02 | Mobile wireless data relay device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230121569A1 (en) * | 2021-10-14 | 2023-04-20 | Dish Wireless L.L.C. | Methods and systems for providing autonomous wireless coverage |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230121569A1 (en) * | 2021-10-14 | 2023-04-20 | Dish Wireless L.L.C. | Methods and systems for providing autonomous wireless coverage |
| US11758417B2 (en) * | 2021-10-14 | 2023-09-12 | Dish Wireless L.L.C. | Methods and systems for providing autonomous wireless coverage |
| US20230403580A1 (en) * | 2021-10-14 | 2023-12-14 | Dish Wireless L.L.C. | Methods and systems for providing autonomous wireless coverage |
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