KR102118506B1 - Cable Tunnel Materials Handling Systems and Method of Transportation - Google Patents

Abstract

The present invention describes a power tool material handling and cable laying system with several parts handling mechanisms. The plurality of transporters 155 are connected in series to move along the track tray 150. The connected transporter 155 supports the transmission cables and pipes, and allows cables and pipes to be transferred from the access passage station to be installed along the power tool 10. A remote guide vehicle (RGV) 200 spans across the track tray 150. The remote guide vehicle 200 may pull each cable and pipe together with the transporter 155 connected in series. Another remote guide vehicle 200 may transport materials and tools to a designated storage or docking station 600 or to transport the operator to a designated work area. Some of these remote guide vehicles 200 are equipped with a loading frame 175 or a lifting platform 300 to move material, tools or operators to a working height and/or lateral reach. These remote guide vehicles 200 may be controlled remotely or manually via a controller 250.

Description

Cable tunnel materials handling systems and method of transportation

The present invention relates to a material handling system and a transfer method for electric power in a large-diameter cavity.

Both of these patent applications claim priority to Singapore Patent Application Nos. 10201707978Q and 10201707980R, filed on September 27, 2017, the contents of both of which are incorporated by reference.

The underground installation of public service facilities using the Open Trench Method results in the destruction of surrounding facilities and is not economical. Open excavation causes pollution, economic disruption around the construction site, and traffic disruption. In many countries, deep tunnels are drilled openly to avoid road blockages and to secure installations. The tunnel must have transmission cables along the side of the tunnel. Some of these tunnels can be used to distribute power, water, communication lines, etc. Some of these are small and lightweight cables, while others can be as large as 180 mm in diameter and about 45 kg/m in weight. If the diameter of the cavity is as large as 6 m, the installation of these large and heavy cables requires a machine with adjustable height and lateral reach. In addition, the components of these machines must be limited in size so that the cavity can be fitted into an access passage connecting the upper ground. Some of these mechanical components can then be assembled inside the cavities to transport materials and tools to other parts of the tunnel.

In the case of small and light cables, existing cable installation machines can be manually operated and scaffolded using a jib hoist and/or forklift for lifting and transportation. For laying large and heavy cables, it is possible to pull the cables into position using conventional machines such as conveying machines and winches. When the cavity diameter is large and long, these conventional cable laying machines and material handling systems are inefficient. Therefore, it is necessary to provide other types of material handling systems for use in such large and long cavities.

The following provides a schematic summary to provide a basic understanding of the invention. This summary is not an extensive overview of the invention and is not intended to identify key features of the invention. Rather, some of the inventive concepts of the invention are presented in a generalized form as a prelude to the more detailed description that is presented later.

The present invention provides a power supply material handling and cable laying system equipped with various material handling mechanisms, manned or unmanned, electric or human driven, or a combination thereof. Each material handling device can also be used to transport heavy cables, pipes, tools, equipment and workers to other parts of the tunnel to install or prepare cables and/or pipes along the cavity.

In one embodiment, the present invention provides a material handling system for transporting a cable, pipe, material component, tool or operator in a large excavation cavity, the system being a flat U-shaped channel wherein the edge is a substantially horizontal flange Is formed, connecting the straight portion of the track tray to form a curved trajectory, while joining the track tray from end to end so that the straight track is located on the service ground along the tunnel; Each transporter is a set of vertical wheels that are operable to fit inside a U-shaped channel and are designed to withstand an effective load and a plurality of transporters guided to translate accordingly by a set of horizontal wheels that guide translational movement along the track tray; And each having a recessed channel to determine the position of the cable or pipe, supported by one drive wheel, running along the substantial center of the track tray, guided by four sets of rollers running, A plurality of remote guide vehicles (RGVs) guided along the inner surface; The cables, pipes, material components, tools, etc. are supported on a plurality of transporters and are powered to move along the track tray by one or more of the remote guided vehicles.

Preferably, the transporter and the remote guide vehicle are connected to move to the train structure by cables, chains or ropes. Anti-collision sensors are located on the end face of each remote guided vehicle.

Preferably, the remote guide vehicle is preferably controlled from a portable controller, and the portable controller can be operated to individually control the remote guide vehicle or to control a group of remote guide vehicles. Even in group control, each remote guide vehicle can be selected via a toggle switch. Group control allows the remote guided vehicle to operate at a common direction or travel speed.

Preferably, one or more carriers or remote guided vehicles are mounted with a loading frame to transport material components, tools, and the like to the destination frame or docking station.

Preferably, the work platform is preferably mounted on a transporter or remote guided vehicle so that the operator can perform work at a desired height and/or side reach. A remote guided vehicle connected in series by a drawbar may also consist of a cable and pipe laying machine.

In another embodiment, a method of conveying material or a worker in a large excavation cavity is provided, the method comprising placing a guide track along a tunnel using a flat U-shaped sheet metal tray, substantially horizontal flange; Assembling a plurality of transporters for translational movement in the track tray; And assembling a plurality of remote guide vehicles for translational movement in the track tray and connecting one or more remote guide vehicles to one or more transporters to move to the train structure; Cables, pipes, material components, tools, etc. can be transported along the track shaft from the access station to the destination station located in a predetermined area of the tunnel.

According to the invention, material components such as rack brackets, cable gutters, cable spacers, pipe spacers, and cover/top troughs can be efficiently moved to areas in the tunnel rather than to storage or docking stations for work. The operator can also move to the target work area. Not all remote guide vehicles are powered, and depending on the traction required, the remote guide vehicle may be powered at both ends, while some of the intermediate remote guide vehicles may be free-wheel.

According to the present invention, it is possible to automate the process of moving the material using a remote guide vehicle or an autonomous remote guide vehicle, and the efficiency and productivity by operating the work platform with the required height and lateral reach when materials and tools are delivered to the workshop. It has the effect of improving.

The invention is illustrated by a non-limiting embodiment of the invention with reference to the accompanying drawings.
1A is a horizontal cross-sectional view of a typical large excavation tunnel.
1B and 1C are vertical cross-sectional views of a shaft relative to a tunnel.
1D is a cross-sectional view of the tunnel.
1E is a cross-sectional view of the mounting of a cable and pipe
2A is a diagram of a remote guided vehicle and transporter for pulling a cable along a tray track according to one embodiment of the present invention.
2B is a view of a transporter for moving along a tray track.
2C and 2D are views of a transporter for moving a transport cable along a track tray.
Fig. 2E is a view of forming a part of a curved track using a straight section of the track tray.
2F-2H are views of a remote guide vehicle pulling the transporter shown in FIGS. 2A-2E.
2I and 2J are diagrams of a controller for operating a remote guide vehicle.
3A and 3B are views of a remote guided vehicle for pulling a transmission cable along a track tray.
Figure 3c is a view showing a remote guide vehicle configured as a lifting platform for lifting and moving cables and pipes to the overhead cable gutter mounted along the tunnel wall.
3d to 3n show various types of lifting platforms.
4A and 4B are views showing the use state of a transporter for moving a cable gutter and a tool along a track tray.
Figure 4c is a view showing the use state of the remote guide vehicle for moving the cable gutter and the tool during installation.
5A and 5B are views showing a use state of a transporter for moving a rack bracket or beam along a track tray.
5C and 5D are views showing a use state of a remote guide vehicle for moving a rack bracket and a beam being installed.
6A and 6B are views showing an unmanned system of a remote guide vehicle equipped with a docking station arranged at regular intervals along a track tray.
Figures 6c and 6d show the unloader that moves the load of components (e.g. rack brackets, cable troughs, cable clamps, pipe spacers, cover/top troughs and tools) from a transporter or remote guided vehicle to a docking station. .
7 is a chart showing manpower savings in a material handling system compared to a conventional system.

One or more specific and alternative embodiments of the invention are described with reference to the accompanying drawings. However, it will be apparent to those skilled in the art that the present invention may be practiced without these specific limitations. Some of the limitations may not be described in detail so as not to obscure the invention. For ease of reference, common reference numbers or series of numbers will be used throughout the drawings when referring to the same or similar features throughout the drawings.

1A shows an exemplary horizontal alignment or plane of a large excavation power tool 10. As shown, the tunnel 10 is composed of straight and curved zones. The tunnel 10 is often very long and often divided into working areas. Each tunnel may enter or exit through a tunnel or access passages 70, 70a, 70b located at each end of the work area, for example. Access passages 70, 70a, 70b are used to transport cables, pipes, materials, tools, equipment, etc. and people into and out of tunnels.

1B, the transmission cable 20 or pipe 22 is released from the drum or reel 25 and descends into the tunnel 10 by controlling the hoist 90 on the gantry crane 80. 1C shows the transport machine 92 deployed along the bottom of the tunnel 10 and the shaft wall to loosen the transmission cable 20 or pipe 22. In one embodiment, the free ends of the cable 20 and pipe 22 are positioned and mounted on the transporter 155 by straps 160, and the transporter 155 is tracked by a remote guide vehicle 200. Pulled along 150. These remote guide vehicles 200 and transporters 155 are connected in series in a train structure according to the required traction force.

As shown in FIG. 2A, in addition to transporting materials, tools, equipment, and workers to a work site within the tunnel 10, the transport tray 20 or pipe 22 along the tunnel 10 track track 150 In order to pull along, some remote guide vehicles 200 may be manned or unmanned, and some may be controlled individually or in groups according to the installation steps inside the tunnel 10. 200) and the associated controller 250 will become clearer after being described.

Turning again, FIG. 1D shows a cross-sectional view of the tunnel 10. As shown in Fig. 1d, the tunnel 10 has a diameter of substantially 6m, and a length of several km in a given area. The base of the tunnel 10 is formed of two hollow cast structures 11, and the partition wall 12 separates the tunnel 10 into two half chambers. Along each half chamber, a pair of rails 13 form a travel path along the tunnel with a fire hydrant 14 installed along each side of the wall. A low voltage distribution box 15, a light 16, and a ventilation fan 17 are installed between different switches, sensors, etc. at regular intervals along each side of the partition wall. Along the ceiling of each half chamber, there is an I-beam 18 for lifting and hoisting. 1D, when fully installed, the tunnel 10 can move the transmission cable 20 and the pipe 22, so that two sets of cables and pipes are installed inside the hollow casting structure 11 .

As can be appreciated, the travel path only allows a wheel base of about 1 m wide, but a lateral reach of about 2 to 2.5 m and a headroom of about 3 to 4 m (up to I-beam 18) need.

2B shows a portion of the track tray 150 and transporter 155. The track tray 150 is made of sheet metal formed by a flat U-shaped channel having both sides formed of horizontal flanges. The track trays 150 are joined together while the ends are connected to each other to form a long track. The curved track tray 150a is formed by connecting a straight portion of a sheet metal channel, as shown in Fig. 2E. Each transporter 155 has a series of vertical rollers/wheels 156 that transport most of the effective load to be transported, and the horizontal rollers/wheels 157 are guided by the side edges of the flat U-shaped channel to thereby transport the transporter 155 ) Is guided along the track tray 150 and the curved track tray 150a, in particular along the bend.

2C and 2D show a portion of a transport cable 20 mounted and mounted on a transporter 155 connected in series by a strap 160. These transporters 155 are connected in series by connecting cables, chains or ropes 158. The distance between the transporters 155 varies depending on the size and rigidity of the transmission cable and pipe, and may be about 2 m apart. In practice, each reel of the transmission cable 20 is long, usually about 1-2 mm long. For example, if the cable 20 is 180 mm in diameter, 1 mm in length, and about 45 kg/m in weight, each cable reel 25 has a weight up to about 50 tons. Indeed, each cable 20 and pipe 22 is continuously tied to the transporter 155 as it descends into the tunnel 10, so that the cable and pipe laying device 100 installs each cable/pipe along the side wall of the tunnel. It descends into the interior of the tunnel 10 until it is used to move it along the rack/trough to the working position.

2F to 2H show details of the remote guide vehicle 200 and its controller 250. As shown in FIG. 2F, the remote guide vehicle 200 has a V-shaped or U-shaped support channel 202 formed along the upper surface 201 to position a portion of the cable 20 and the pipe 22. Have Preferably, the V-shaped channel 202 has a flat bottom. The upper surface 201 has a rotation indicator 220 that is turned on when the remote guide vehicle 200 is powered on. On the front end surface of the remote guide vehicle 200 is an anti-collision sensor 210. Preferably, the anti-collision sensor 210 is located inside the groove on the front end surface. In addition, the front end surface has an electrical connector 215, which charges a battery (not shown) located inside the remote guide vehicle 200, sets parameters/programs in electronic components and related software, and remote guide vehicle It can be used for extracting data logs from and for manual access to the local controller 250.

The front end and rear end of the remote guide vehicle 200 are protected by respective bumpers 204.

2G and 2H, the remote guide vehicle 200 is powered by one drive wheel 205 and is supported by four balancing wheels 206. The balancing wheel 206 is located adjacent to each of the four corners of the remote guide vehicle 200 and contacts the working ground along the tunnel 10. The drive wheel 205 is guided along the center by four sets of guide rollers 207 that are in contact with the inner surface along the track trays 150 and 150a and guided along the inner surface of the track tray 150.

2I shows the controller 250 for use with the remote guide vehicle 200. Each controller 200 is portable and has a control surface 251, an emergency button 260, and a hand strap 270. The control surface 251 is provided with a start button 252, a mode switch 253, a direction switch 254 and a speed knob 255. Preferably, each remote guide vehicle (200, 200a, 200b, etc.) has electronic identification information, for example, when the manual/local mode switch 253 is turned off as shown in FIG. 2j, the controllers 250, 250a, etc. It is connected wirelessly. In group control, a group of remote guided vehicles 200 connected in series is wirelessly connected through the controller 250 by selectively switching the associated toggle switch 256. The indicator light 267 associated with the remote guide vehicle 200 is turned on when the remote guide vehicle is operating. In group control, the direction and speed of the group are set.

3A and 3B show a remote guide vehicle 200 that is substantially movable along the track tray while spanning the track trays 150 and 150A. For example, the remote guide vehicle 200 can be powered by two batteries (not shown), each containing enough power to use for about two hours. The remote guide vehicle 200 is used to pull the transmission cable 20 when the cable is tied to the top of the remote guide vehicle. Since one remote guide vehicle may have limited traction, multiple remote guide vehicles 200 connected in series can be used to tow each area of the cable 20. Depending on the material handling system applied, the lifting platform 300 (e.g., guided by the vertical post 320) may include a wire rope winch 330 (as shown in FIGS. 3C and 3L). Electric or manual, or by an x-lift mechanism 310 (as in Figure 3i), rack bracket 23, cable trough 24, spacers 26, 28, clamp 27 , It is operated by a vertical fluid cylinder 325 which transports and lifts parts, tools and operators to appropriate heights to install bolts, nuts, screws and the like.

In this way, there is no need to unload and store these components, tools, etc. at a storage or docking station 600 spaced along the tunnel 10.

The plurality of remote guide vehicles 200 are connected by a draw bar 50 to constitute a cable and pipe laying apparatus 100. A number of such cable and pipe laying devices 100 may be arranged to simultaneously install cables and pipes along the tunnel 10. Due to this movable material handling system, the efficiency and productivity of the work equipment in the tunnel has been significantly improved, requiring relatively less manpower and no scaffolding work. In particular, when compared to pulling the cable in a conventional way, there is no need for a scaffold to secure the cable roller, conveying machine or winch, saving time in mobilizing and disengaging equipment. This substantially eliminates the processing time of preparing the service ground and pulling the cable or preparing to transport material, tools, etc. Instead, a portion of the material, parts and tools along the tunnel 10 is used to minimize material transfer time or to maximize the use of the transporter 155, remote guide vehicle 200 and cable and pipe laying device 100. It can be moved to a warehouse or docking station 600 located.

3D to 3H show plan views of the cable and pipe laying apparatus 100. The cable and pipe laying apparatus 100 is composed of a plurality of mechanical units that are rotatably connected to each other by a draw bar 50, such as a train structure. For example, the cable laying apparatus 100 may be configured in 5 to 10 mechanical units depending on the size of cables and pipes and the allowable bending radius. The spacing of the mechanical units is preferably the same as the spacing of the rack brackets 23 installed along the side walls of the tunnel to support the cables and pipes.

A cable feeder 30 is mounted on the first machine unit, and the cable feeder 30 grips the cable 20 and the pipe 22 during the initial operation, and a part of the cable and pipe onto the cable laying apparatus 100. Push it out. Each second and following machine unit is equipped with a working platform 305 having an adjustable height on the remote guide vehicle 200. And the slide platform 400 is mounted to each of the working platform 305. The roller assemblies 500, 500a (shown in FIGS. 3E-3H) are in turn mounted on the slide platform 400 and the second machine unit. In this way, the cable and pipe laying device 100 supports the continuous length of the cable and pipe as the laying device 100 advances. And the cable 20 and the pipe 22 are pushed upward and sideways on the roller assemblies 500 and 500a. So the cable 20 and the pipe 22 are lifted over each gutter 24.

The cables and pipes can then be pushed into place on each spacer 26 or 28 located inside the trough 24 (see FIG. 1E ). Pressing the cables and pipes into the trough 24 To facilitate this, a roller assembly 500a (without a vertical guide roller) is mounted on the last or last two mechanical units (eg). When a set of cables (e.g., three cables) are placed inside the groove 24, a clamp 27 is used to position the cable 20. The cable spacers 26 are preferably spaced apart according to the pitch spacing of the support rack brackets 23. Then, the pipe spacer 28 is placed on the cable set 20, and the cable and pipe laying device 100 connects two water pipes 22 (such as HDPE pipes with a diameter of 100 mm) on the pipe spacer 28. Place and the cover or top trough 25 is fixed over the bottom trough 24. Of course, these cables 20 and pipes 22 are supplied in a limited length, combined before they are lifted and placed in each gutter.

In this way, continuous lengths of cables and pipes are laid along the side walls of the tunnel 20. Needless to say, before the slide platform 400 or the roller assemblies 500, 500a are attached, these cable and pipe laying devices 100 with adjustable working platform heights are provided with electrical cables for lighting and mechanical ventilation fans along the tunnel, It can also be used to install distribution boxes, switches, sensors, and other mechanical and electrical installations.

3I-3N show a lifting platform 300 operable by various mechanical means. For example, FIG. 3I shows lifting platform 300 using x-lift mechanism 310. Some forward machine units use a single or two stage x-lift mechanism, while the rear machine unit adopts a three or four stage x-lift mechanism that depends on the vertical reach. The advantage of this lifting platform is that the horizontal flatness of the working platform 305 is maintained at all heights.

3J shows a lifting platform 300a using a two stage fluid cylinder or actuator 325 and a two stage telescopic post 320. 3K shows a lifting platform 300b using a two-stage fluid cylinder 325, a two-stage telescopic post 320 and an x-lift mechanism 310a (without cylinder actuator). The adjustable stopper 327 is used to secure the working platform 305 to the desired height. The x-lift mechanism ensures horizontal flatness of the working platform, while the fluid cylinder 325 provides a lift force. It also provides a pair of elongated guide pillars 322 (eg, removably connected in two or three sections) and pulleys/sprockets 340, ropes/chains 350 and winches 330 It is possible, and the height of the working platform 305 can be adjusted by operating the winch 330, as shown in FIG. 3L.

3M shows a lifting platform 300d, which is a variation of the lifting platform 300c. The vertical post 322 of this lifting platform 300d extends to the overhead I-beam 18 to contact (slide or roll) the overhead I-beam 18. The sliding or rolling contact is realized by rollers or sliding pads. Rollers or slide pads can be made of suitable polymers such as polyamide or HDPE. In some cases, lateral extension arms 370 may be connected near the longitudinal or intermediate position of vertical post 322.

The end of the extension arm 370 may be configured with a roller/slide pad 380 for contact support with the tunnel sidewall. With this lifting platform (300d), the top of the cable and pipe laying device (100) has bearing supports with I-beams or tunnel sidewalls, and counterweights required to maintain stability can be reduced or eliminated. have.

3N shows a lifting platform 300e according to another embodiment. The height of the working platform 305 is adjusted by installing or removing the height stacking unit 307. The slide platform 400 can be mounted on the work platform 305 when used to construct the cable and pipe laying device 100. The roller assemblies 500 and 500a can then be mounted to slide on the slide platform 400.

The slide platform may or may not be mounted to slide on the work platform 305. When slide platform 400 slides on work platform 305, roller assemblies 500 and 500a need not slide on slide platform 400. Counterweight 60 is used to maintain the stability of the lifting platform (300, 300a-300e) and the cable and pipe laying device (100).

Additionally or alternatively, a side extension arm 370a may be connected to the working platform 305 to allow the distal roller/slide pad 380 to make bearing contact with the sidewall of the tunnel.

As an example of such a material handling system, FIGS. 4A and 4B show some cable gutters 24, cable spacers 26, clamps 27, pipe spacers 28, cover/top gutters 25 along the tunnel 10. ) And the loading frame 170 mounted on the transporter 155 for transporting other elongated members.

Each cover or cable gutter 25 is about 2.8 m long, and two transporters 155 connected in series by connecting cables or ropes or chains 158 are used to transport these long members. 4C shows a remote guide vehicle 200 instead of a transporter 155 for moving some cable gutters, spacers, clamps, covers and other elongated members. When connected in series to form a train-shaped group, some remote guide vehicles 200 are powered, and some remote guide vehicles 200 in the middle can be converted into a floating vehicle.

Similar to the above embodiment, FIGS. 5A and 5B show a loading frame 170 mounted on a transporter 155 to move some rack brackets or beams 23. 5C shows the use of a remote guide vehicle 200 for transporting the loading frame 170, while FIG. 5D shows a remote guide vehicle 200 equipped with a working platform, lifting platform, and loading frame 170. do. This remote guided vehicle with a work platform mounted allows work at elevated heights to be performed separately from work using the cable and pipe laying device 100. 3C, 4C, 5C, and 5D, the turn indicator 220 is repositioned onto the loading frame. When the remote guide vehicle 200 is powered on, the turn indicator 220 provides a safety warning to the operator.

6A and 6B show an autonomous remote guide vehicle 200a according to another embodiment. The autonomous remote guide vehicle 200a is equipped with an RFID tag. The RFID tag allows the user to program the autonomous remote guide vehicle 200a to deliver parts and tools to the destination docking station 600, 600a, etc. In addition, destination docking stations (600, 600a, etc.) in different work zones can also be identified and programmed. Docking stations 600, 600a, etc. may be spaced along the tunnel 10 at equal intervals, for example, every 50 m. In order to avoid collision of these autonomous remote guide vehicles 200a, a LIDAR (Light Detection And Ranging) collision prevention sensor 210 mounted on the front end of each autonomous remote guide vehicle is useful.

6C and 6D show an embodiment of the unloader 620 located in the docking station 600.

The unloader 620 extends over the path of the transporter 155 or the remote guide vehicle 200, or retrieves parts and/or tools from the loading frame 170 mounted on the transporter 155 or the remote guide vehicle 200. Is used to

In one embodiment, the unloader 620 extends over the track tray 150 and moves up and down to have an extendable area that facilitates transport of parts and/or tools to each docking station 600.

The advantage of using the material handling system is an improvement in efficiency and productivity. Figure 7 shows a comparison chart for the airlift required to operate the material handling system compared to a conventional system. In addition, automation can be further achieved by using a remote guide vehicle or an autonomous remote guide vehicle. Increases efficiency and productivity by operating the work platform with the required height and lateral reach when materials and tools are delivered to the workshop.

Although specific embodiments have been described and illustrated, it can be seen that many changes, modifications, variations and combinations can be made to the invention without departing from the scope of the invention. For example, autonomous remote guide vehicles are equipped with a manual override selector, which can also be controlled by the operator. The remote guided vehicle can also be adjusted or guided along the track tray, for example with a distance sensor, laser, or the like.

Claims (16)

In a material handling system for transporting cables, pipes, material parts, tools or workers in a large cavity,
It is formed of a flat U-shaped channel with sides formed by a substantially horizontal flange, and the curved track is formed by connecting the straight portions of the track tray, whereas the straight tray is formed on the working surface by joining the track trays end-to-end along the tunnel. A track tray positioned;
A plurality of transporters, each transporter being guided by a set of vertical wheels fitted inside a U-shaped channel and designed to withstand an effective load and a horizontal wheel set to guide movement along the track tray;
A plurality of remote guides supported by a single drive wheel, driven along a substantial center of the track tray, guided by four sets of rollers running along the track tray, and having a recessed channel for positioning the cable or pipe Vehicle; includes,
The cable, the pipe, the material component, and the tool are supported on a plurality of transporters, and are powered to move along the track tray by one or more remote guide vehicles,
The transporter and the remote guide vehicle are combined into a train structure by any one of cables, chains, and ropes,
Further comprising an anti-collision sensor located on the end surface of each remote guide vehicle,
Further comprising four balancing wheels arranged near the four corners of each remote guided vehicle,
Further comprising a portable controller operable to individually control the remote guide vehicle or control the remote guide vehicle group, each remote guide vehicle in the group can be further selected by a toggle switch,
Each of the remote guide vehicles further includes a rotation indicator that flashes when the power is turned on, and an electrical connector that supplies power to a battery built in the remote guide vehicle and inputs and outputs data stored in the remote guide vehicle,
Further comprising a loading frame mounted on a transporter and/or a remote guided vehicle for transporting material parts or tools,
The turn indicator is repositioned from the remote guide vehicle to the loading frame,
Some remote guided vehicles are connected in series by a tow bar and the working platform is mounted on each of the remote guided vehicles to form a cable and pipe laying device, which is mounted on a rack bracket installed on the tunnel wall. Power tool material handling system, characterized in that it operates to extend vertically (height direction) and laterally to reach. delete delete delete delete delete delete delete delete According to claim 1,
A power station material handling system further comprising a docking station disposed at a distance along one side of the track tray in the tunnel. The method of claim 10,
Each docking station further includes an unloader,
The unloader operates to extend or move up and down toward the outside and the upper side of the track tray, thereby operating the material parts, tools, and workers to transport material parts, tools, and workers between the docking station and the transporter or the remote guide vehicle. Handling system. delete delete delete delete delete

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