JP2024036984A - Crane remote operation system - Google Patents

Abstract

To provide a crane remote operation system capable of reducing wirings and improving quality of communication.SOLUTION: In a crane remote operation system 100, a frequency adjustment unit 27 receives photographing information through wireless communication from cameras 21 and 23 provided in a crane 1. Since the cameras 21 and 23 provided in the crane 1 can transmit the photographing information through wireless communication. wirings connected to the cameras 21 and 23 can be reduced. The frequency adjustment unit 27 adjusts the frequency of the photographing information, and communicates with a ground facility 102 on the ground side. Thus, the frequency adjustment unit 27 can adjust the frequency to a frequency that can suppress breaking of the photographing information caused by crosstalk and transmit the photographing information to the ground facility.SELECTED DRAWING: Figure 1

Description

The present invention relates to a crane remote control system.

BACKGROUND ART Conventionally, a system is known (for example, see Patent Document 1) that communicates photographic information acquired by a camera installed on a crane that suspends an object to ground equipment on the ground side. This system transmits information captured by a camera installed on the crane body to ground equipment at a predetermined frequency.

JP 2021-123439 Publication

Remotely operating a crane from a remote location can reduce the human costs for workers and the burden on drivers. When remotely controlling a crane, it is necessary to photograph the object with a camera from a position where it can be easily seen, but depending on the position of the camera, the wiring becomes complicated and the burden of wiring work increases. Furthermore, when photographing information is wirelessly communicated to ground equipment on the ground side, communication problems such as interruptions in the photographing information may occur.

The present invention has been made to solve such problems, and an object of the present invention is to provide a crane remote control system that can reduce wiring and improve the quality of communication.

The crane remote control system according to the present invention is a crane remote control system that remotely controls a crane that suspends an object, and includes a photographing section provided on the crane, and a photographing section provided on the crane that receives images via wireless communication from the photographing section. It includes a frequency adjustment unit that adjusts the frequency of information, and an antenna that is installed on the crane and communicates with ground equipment on the ground side.

In the crane remote control system, the frequency adjustment section receives photographing information via wireless communication from the photographing section provided in the crane. In this way, since the photographing section provided in the crane can transmit photographing information via wireless communication, the number of wires connected to the photographing section can be reduced. Further, the frequency adjustment section adjusts the frequency of the photographed information, and the antenna communicates with ground equipment on the ground side. Therefore, after the frequency adjustment unit adjusts the frequency to a frequency that can suppress interruptions of the photographic information due to crosstalk, etc., the antenna can transmit the photographic information to the ground equipment. As described above, it is possible to reduce wiring and improve the quality of communication.

The frequency adjustment section may adjust the imaging information to a frequency of 4.9 GHz. Since the frequency of 4.9 GHz is a frequency that is difficult to use in crane buildings, it is possible to suppress crosstalk with other signals in communication between the antenna and ground equipment.

Communication may be performed at a frequency of 2.4 GHz or 5.6 GHz between the imaging unit and the frequency adjustment unit. By communicating between the imaging unit and the frequency adjustment unit, which are close to each other, at a frequency of 2.4GHz or 5.6GHz, which is the frequency used in Wi-Fi, it is not necessary to install special communication equipment around the imaging unit. disappears.

The antenna may receive crane control information tuned to a frequency of 4.9 GHz from ground equipment. The frequency of 4.9 GHz is a frequency that is difficult to use in crane buildings. Therefore, by receiving crane control information adjusted to the frequency of 4.9 GHz from the ground equipment, the antenna can suppress interference with other signals in communication between the antenna and the ground equipment. From the above, the quality of communication can be improved.

The imaging unit may be provided in a movable part of the crane that is movable relative to the crane main body. When a wired imaging unit is provided in the movable part, the wiring becomes complicated in order to accommodate the movement of the movable part. On the other hand, a wireless imaging unit can be installed in a movable part without complicating wiring.

The crane main body portion may be a girder, and the photographing portion may be provided on a hanging portion suspended from a trolley that can traverse on the girder. In this case, the photographing unit can photograph the hanging load.

The antenna of the ground equipment may be provided at a position facing the crane in the traveling direction. In this case, the positional relationship between the antenna inside the crane and the antenna of the ground equipment is maintained such that they face each other in the traveling direction. Therefore, the quality of communication of photographic information can be improved.

A crane remote control system according to the present invention is a crane remote control system for remotely controlling a crane that suspends an object, and includes a communication section provided in the crane, and the communication section communicates with ground equipment on the ground side. Performs wireless communication at 4.9GHz.

The frequency of 4.9 GHz is a frequency that is difficult to use in crane buildings. Therefore, when the communication unit performs wireless communication at 4.9 GHz with the ground equipment on the ground side, it is possible to suppress interference with other signals in the communication between the frequency adjustment unit and the ground equipment. From the above, the quality of communication can be improved.

According to the present invention, it is possible to provide a crane remote control system that can reduce wiring and improve the quality of communication.

1 is a diagram showing a crane remote control system and a crane to be operated according to an embodiment of the present invention. FIG. 1 is a block configuration diagram showing a block configuration of a crane remote control system. It is a figure showing an example of the composition inside an operation room. FIG. 2 is a diagram showing a building with multiple cranes. It is a figure showing a crane remote control system concerning a modification.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a crane remote control system 100 according to an embodiment of the present invention and a crane 1 to be operated. Here, an overhead crane is illustrated as the crane 1. As shown in FIG. 1, the crane 1 is a device that holds a hanging load SL (object) with a hanging part 6, suspends it with a hanging member 7, and moves the hanging part 6 and the hanging member 7 together with the hanging load SL. . Moreover, the hanging load SL is not particularly limited, and various articles such as a coil, a slab, a bundled steel bar, and an iron plate may be employed.

As shown in FIG. 1, the crane 1 includes a crane main body 10 that runs on a rail 2 provided on the ground, a hanging part 6 that is movable relative to the crane main body 10, and the like. The crane main body 10 is, for example, a girder 3. The hanging portion 6 may be provided on the trolley 4 that is movable on the girder 3 in the transverse direction D2.

The rail 2 is a member that guides the movement of the hanging portion 6 in the traveling direction D1 via the girder 3 and the trolley 4. The rails 2 are a pair of guide members that are spaced apart from each other in the transverse direction D2 and extend parallel to the traveling direction D1 of the crane main body 10. The rail 2 is fixed to a building 150 in which the crane 1 is installed. The girder 3 is a pair of members that guide the movement of the hanging portion 6 in the transverse direction D2 via the trolley 4. The girders 3 are a pair of guide members that are spaced apart from each other in the traveling direction D1 and extend parallel to the transverse direction D2 so as to span the pair of rails 2. The girder 3 can be moved along the rail 2 in the running direction D1 by a running device. The trolley 4 suspends the hanging part 6 while being supported by the girder 3. The trolley 4 can be traversed along the girder 3 in the traversing direction D2 by a traversing device.

The hanging part 6 holds the hanging load SL by hanging it. The hanging portion 6 is suspended from the trolley 4 by a hanging member 7. The hanging portion 6 is connected to a hoisting device 8 provided on the trolley 4 via a hanging member 7. Therefore, the hoisting device 8 can raise and lower the hanging part 6 by hoisting up and lowering the hanging member 7. The hanging member 7 is, for example, a wire rope.

The crane remote control system 100 includes crane equipment 101 provided on the crane 1 and ground equipment 102 provided on the ground. Crane equipment 101 includes an imaging section 108, a frequency adjustment section 27, a communication section 109, and an antenna 28. The frequency adjustment section 27, the communication section 109, and the antenna 28 are provided on the girder 3. Therefore, for convenience, the frequency adjustment section 27, the communication section 109, and the antenna 28 may be collectively referred to as the girder equipment 105. Note that a part or all of the frequency adjustment section 27, the communication section 109, and the antenna 28 may be configured as one unit. The imaging unit 108 is provided in at least one of the hanging part monitoring part 103 provided in the hanging part 6, the trolley monitoring part 104 provided in the trolley 4, and the girder equipment 105 provided in the girder 3. In this embodiment, the photographing section 108 includes cameras 21, 23, and 25, which will be described later, and the communication section 109 includes communication sections 22, 24, and 26, which will be described later.

The detailed configuration of the crane remote control system 100 will be described with reference to FIGS. 1 and 2. FIG. 2 is a block diagram showing the block configuration of the crane remote control system 100. The suspension monitoring section 103 includes a camera 21 (photographing section) and a communication section 22. These devices are installed on the hanging section 6 (see FIG. 1). The camera 21 is provided so that its imaging axis faces downward. The camera 21 can photograph the hanging load SL when the hanging part 6 performs the work of hanging the hanging load SL. The camera 21 transmits the acquired photographic information to the communication section 22. The communication unit 22 is a device that performs wireless communication with the communication unit 26 of the girder equipment 105. The communication unit 22 transmits the acquired photographic information to the girder equipment 105. Wired communication may be performed between the camera 21 and the communication unit 22. Note that if the camera 21 itself has a communication function, the communication section 22 can be omitted. Here, the hanging part 6 is movable relative to the girder 3, which is the crane main body part 10 of the crane 1. Therefore, the camera 21 is provided in a movable part of the crane 1 that is movable relative to the crane main body 10.

The trolley monitoring unit 104 includes a camera 23 (photographing unit) and a communication unit 24. These devices are installed on the trolley 4. The camera 23 can photograph, for example, the state in which the hoisting device 8 winds up the hanging member 7, the state around the suspended load SL as seen from the trolley 4, and the like. The camera 23 transmits the acquired photographic information to the communication section 24. The communication unit 24 is a device that performs wireless communication with the communication unit 26 of the girder equipment 105. The communication unit 24 transmits the acquired photographic information to the girder equipment 105. Wired communication may be performed between the camera 23 and the communication unit 24. Note that if the camera 23 itself has a communication function, the communication section 24 can be omitted. Here, the trolley 4 is movable relative to the girder 3, which is the crane main body 10 of the crane 1. Therefore, it can be said that the camera 23 is provided in a movable part that is movable relative to the crane main body 10 of the crane 1.

The girder equipment 105 includes a camera 25 and a communication section 26. These devices are installed on the girder 3 (see FIG. 1). The camera 25 can photograph the wheels of the crane main body 10, the entire trolley, the surroundings of the suspended load SL as seen from the girder 3, and the like. The camera 25 transmits the acquired photographic information to the communication section 26. The communication unit 26 transmits the imaging information received from the imaging unit 108 to the frequency adjustment unit 27.

The frequency adjustment unit 27 adjusts the frequency of the imaging information received from the cameras 21 and 23 via wireless communication and the imaging information received from the camera 25 via wired or wireless communication. The imaging information whose frequency has been adjusted by the frequency adjustment unit 27 is transmitted to the antenna 28 for performing wireless communication with the ground equipment 102. The antenna 28 transmits the photographic information whose frequency has been adjusted by the frequency adjustment section 27 to the ground equipment 102 . The antenna 28 also receives control information for the crane 1 (hereinafter sometimes referred to as crane control information) from the ground equipment 102 and transmits it to the frequency adjustment section 27 . Frequency adjustment section 27 transmits crane control information received from ground equipment 102 to control section 29 . Wired communication is performed between the frequency adjustment section 27 and the control section 29.

The control unit 29 is a device that controls various devices of the crane 1. The input unit 30 is an input device for inputting information to the control unit 29 by an operator's operation. The input unit 30 is, for example, a touch panel. Between the camera 25 and the frequency adjustment section 27, between the communication section 26 and the frequency adjustment section 27, between the frequency adjustment section 27 and the antenna 28 (communication section), between the frequency adjustment section 27 and the control section 29, Wired communication is performed between the control section 29 and the input section 30.

As shown in FIG. 2, the ground equipment 102 includes an antenna 31, a frequency adjustment section 32, a control section 33, a ground equipment monitor 34, and an input section 36. The antenna 31 is a communication device for performing wireless communication with the crane equipment 101. The antenna 31 transmits photographic information received from the crane equipment 101 to the ground equipment monitor 34. The ground equipment monitor 34 is a device that outputs photographic information acquired by the crane equipment 101 to an operator. The input unit 36 is an input device for inputting information to the control unit 33 by an operator's operation. The input unit 36 is, for example, a touch panel. The control unit 33 creates control information for the crane 1 based on the input information. The crane control information includes, for example, command values for the traveling drive section, traverse drive section, hoisting drive section, etc. of the crane 1. The frequency adjustment unit 32 adjusts the frequency of crane control information transmitted to the crane equipment 101. The crane control information whose frequency has been adjusted by the frequency adjustment section 32 is transmitted to the crane equipment 101 by the antenna 31. Wired communication is performed between the antenna 31 and the frequency adjustment section 32, between the frequency adjustment section 32 and the control section 33, between the frequency adjustment section 32 and the ground equipment monitor 34, and between the control section 33 and the input section 36. It will be done.

With reference to FIG. 1, an example of the arrangement of the antenna 31 and frequency adjustment section 32 in the ground equipment 102 is shown. An antenna 31A that communicates with the crane equipment 101 is provided on the inner surface of the wall 151 of the building 150. An antenna 31B that communicates with the operation room 106 is provided on the outer surface of the wall 151 of the building 150. A frequency adjustment section 32A is provided between antenna 31A and antenna 31B. The operation room 106 is provided with an antenna 31C that communicates with the antenna 31B of the building. The antenna 31C is connected to the frequency adjustment section 32B of the operation room 106. The frequency adjustment section 32B is connected to the ground equipment monitor 34. Note that some or all of the communication between the antenna 31 and the operation room 106 can also be performed by wired communication.

An example of the configuration inside the operation room 106 will be described with reference to FIG. 3. As shown in FIG. 3, a plurality of ground equipment monitors 34 are provided in the operation room 106. Thereby, the operator can check images from a plurality of cameras installed on a certain crane 1 on each ground equipment monitor 34. Further, in the operation room 106, an input unit 36 is provided in a row of a plurality of ground equipment monitors 34. In the operation room 106, an operation device 39 is provided in front of the ground equipment monitor 34 and the input section 36. Note that when at least part of the operation of the crane 1 is automated, the operator may operate the plurality of cranes 1 by switching the images of the cameras of the plurality of cranes 1.

Next, the arrangement of the antenna 31A that communicates with the crane equipment 101 will be explained. The antenna 31 of the ground equipment 102 is provided at a position facing the crane 1 in the traveling direction D1. For example, as shown in FIG. 4, a plurality of cranes 1A, 1B, and 1C are provided in the building 150 so as to be lined up in the traverse direction D2. The building 150 includes a conveyor section 152 through which the suspended load SL is conveyed, a suspended load arrangement section 153 where the suspended load SL is arranged, and a vehicle passageway 154 through which a vehicle TL passing the suspended load SL passes. Among the wall portions facing each crane 1 in the traveling direction D1, the antenna 31 on the ground equipment 102 side is provided on the inner surface of the wall portion 151 on the conveyor portion 152 side. The antenna 31 for the crane 1A is provided on the wall portion 151 at a position facing the crane 1A in the traveling direction D1. The antenna 31 for the crane 1B is provided on the wall portion 151 at a position facing the crane 1B in the traveling direction D1. The antenna 31 for the crane 1C is provided on the wall 151 at a position facing the crane 1C in the traveling direction D1. According to such an arrangement, even if the crane 1 moves in the traveling direction D1, the relative angle between the antenna 28 and the antenna 31 does not change significantly, so stable communication is possible.

Next, returning to FIG. 1, wireless communication in the crane remote control system 100 will be described. Wireless communication is performed between the communication unit 22 of the suspension monitoring unit 103 and the communication unit 26 of the girder equipment 105. Wireless communication is performed between the communication unit 24 of the trolley monitoring unit 104 and the communication unit 26 of the girder equipment 105. The communication units 22, 24, and 26 are configured by Wi-Fi communication devices. Although the frequency of communication between the communication units 22, 24, and 26 is not particularly limited, communication may be performed at a frequency of 2.4 GHz or 5.6 GHz, for example. Therefore, communication is performed at a frequency of 2.4 GHz or 5.6 GHz between the camera 21 provided on the hanging section 6 and the frequency adjustment section 27, and between the camera 23 provided on the trolley 4 and the frequency adjustment section 27. will be held. Note that if the frequency is 5.6 GHz, it can be used outdoors. No wiring for transmitting photographic information is provided between the hanging part monitoring section 103 provided on the hanging part 6 and the girder equipment 105. Note that the camera 21 is supplied with power from the existing power wiring that supplies power to the hanging portion 6 . No wiring for transmitting photographic information is provided between the trolley monitoring unit 104 provided on the trolley 4 and the girder equipment 105. Note that the camera 23 is supplied with power from the existing power wiring that supplies power to the drive unit of the trolley 4.

Wireless communication is performed between the antenna 28 of the girder equipment 105 and the antenna 31A on the inner surface of the wall 151 of the ground equipment 102. The antenna 28 of the girder equipment 105 transmits photographic information whose frequency has been adjusted by the frequency adjustment section 27. The antenna 31A on the inner surface side of the wall 151 of the ground equipment 102 transmits crane control information whose frequency has been adjusted by the frequency adjustment section 32A. Wireless communication is performed between the antenna 31B on the outer surface side of the wall portion 151 and the antenna 31C in the operation room 106. The antenna 31B on the outer surface side of the wall 151 of the ground equipment 102 transmits photographic information whose frequency has been adjusted by the frequency adjustment section 32A. The antenna 31C in the operation room 106 transmits crane control information whose frequency has been adjusted by the frequency adjustment section 32B. The frequency adjustment units 27, 32A, and 32B are configured by devices such as multi-access concentrators. Note that the frequency adjustment units 27, 32A, and 32B may be configured by devices that can adjust the frequency, and may be configured by devices other than the multi-access concentrator. The frequency adjustment units 27, 32A, and 32B adjust the frequency to a frequency different from the frequency used in Wi-Fi. The frequency adjustment units 27, 32A, and 32B adjust the information to a frequency of 4.9 GHz. Therefore, the frequency adjustment unit 27 adjusts the imaging information of the frequency of 2.4 GHz or 5.6 GHz to 4.9 GHz, and transmits it to the ground equipment 102. Further, the frequency adjustment units 32A and 32B of the ground equipment 102 adjust the crane control information to 4.9 GHz and transmit it to the crane equipment 101 side. However, the frequency adjustment sections 27, 32A, and 32B may adjust to a frequency other than 4.9 GHz as long as the frequency is different from the frequency of the communication sections 22, 24, and 26.

Next, the functions and effects of the crane remote control system 100 according to this embodiment will be explained.

In the crane remote control system 100, the frequency adjustment unit 27 receives photographing information from the cameras 21 and 23 provided on the crane 1 via wireless communication. In this way, since the cameras 21 and 23 provided on the crane 1 can transmit photographing information by wireless communication, the number of wirings connected to the cameras 21 and 23 can be reduced. Further, the frequency adjustment unit 27 adjusts the frequency of the photographed information, and the antenna 28 communicates with the ground equipment 102 on the ground side. Therefore, after the frequency adjustment unit 27 adjusts the frequency to a frequency that can suppress interruptions of the photographic information due to crosstalk, etc., the antenna 28 can transmit the photographic information to the ground equipment. As described above, it is possible to reduce wiring and improve the quality of communication.

The frequency adjustment section 27 may adjust the imaging information to a frequency of 4.9 GHz. The frequency of 4.9 GHz is a frequency that is difficult to use in the building of the crane 1. Specifically, the 4.9 GHz frequency is a frequency that requires a license to operate. Therefore, unlike the frequency used in Wi-Fi, the frequency of 4.9 GHz is rarely used in the building 150. Therefore, in communication between the antenna 28 and the ground equipment 102, interference with other signals can be suppressed.

Communication may be performed between the cameras 21 and 23 and the frequency adjustment section 27 at a frequency of 2.4 GHz or 5.6 GHz. By communicating between the cameras 21, 23 and the frequency adjustment unit 27, which are close to each other, at a frequency of 2.4 GHz or 5.6 GHz, which is the frequency used in Wi-Fi, special noise is created around the cameras 21, 23. There is no need to install communication equipment.

Antenna 28 may receive crane control information tuned to a frequency of 4.9 GHz from ground equipment 102 . The frequency of 4.9 GHz is a frequency that is difficult to use in the building of the crane 1. Therefore, by receiving crane control information adjusted to the frequency of 4.9 GHz from the ground equipment 102, the antenna 28 suppresses interference with other signals in communication between the antenna 28 and the ground equipment 102. can. From the above, the quality of communication can be improved.

The cameras 21 and 23 may be provided in movable parts of the crane 1 that are movable relative to the crane main body 10. When the wired cameras 21 and 23 are provided in the movable part, the wiring becomes complicated in order to be able to cope with the operation of the movable part. On the other hand, wireless cameras 21 and 23 can be provided on the movable part without complicating wiring.

The crane main body 10 is a girder 3, and the camera 21 may be provided on a hanging part 6 suspended from a trolley 4 that can traverse on the girder 3. In this case, the camera 21 can photograph the hanging load SL.

The antenna 31 of the ground equipment 102 may be provided at a position facing the crane 1 in the traveling direction D1. In this case, the positional relationship between the antenna 28 inside the crane 1 and the antenna 31 of the ground equipment 102 is maintained such that they face each other in the traveling direction D1. Therefore, the quality of communication of photographic information can be improved.

A crane remote control system 100 according to the present embodiment is a crane remote control system 100 that remotely controls a crane 1 that suspends a suspended load SL, and a communication unit 50 using a frequency adjustment unit 27 and an antenna 28 provided in the crane 1. In preparation, the communication unit 50 performs wireless communication at 4.9 GHz with the ground equipment 102 on the ground side.

The frequency of 4.9 GHz is a frequency that is difficult to use in the building 150 of the crane 1. Since the communication unit 50 performs wireless communication at 4.9 GHz with the ground equipment on the ground side, it is possible to suppress interference with other signals in the communication between the frequency adjustment unit 27 and the ground equipment 102. . From the above, the quality of communication can be improved.

Here, verification of the effects of the crane remote control system 100 according to this embodiment will be explained. First, control signal delay verification will be explained. Software is created that counts up by 1 for each scan between the control unit 33 of the ground equipment 102 and the control unit 29 of the crane 1, and a control signal is input from the control unit 33 of the ground equipment 102. The input time at the control unit 33 of the ground equipment 102 and the output time at the control unit 29 of the crane 1 are recorded with a logger, and the difference is taken as the communication delay time. Although a very slight delay occurred in the demonstration experiment, it was within the range that a person could operate remotely without feeling any discomfort.

In addition, a delay verification of the photographed information taken by the camera 23 was performed. The timer displayed on the screen of the PC installed on the ground and the screen of the ground equipment monitor 34 were simultaneously photographed by the camera 21 of the hanging part 6, and the time difference between the displayed timers was taken as the delay time due to communication. Although a very slight delay occurred in the timer displayed on the ground equipment monitor 34, it was within the range that allowed a person to check the situation without feeling any discomfort when operating remotely.

The invention is not limited to the embodiments described above.

For example, the crane 1 is not limited to an overhead crane, and may be a bridge crane, a jib crane, a portal crane, or the like.

FIG. 5 is a diagram showing a crane remote control system 200 for remotely controlling the bridge crane 201. The bridge crane 201 includes leg sections 202A and 202B, a bridge section 203, a trolley 204, and a hanging section 206. A camera 121 and a communication section 122 are provided on the leg section 202B of the bridge crane 201. A camera 123 and a communication unit 124 are provided in an extension part 202Aa higher than the bridge part 203 in the leg part 202A. The trolley 204 is provided with a camera 126 for photographing the hanging section 206 and a communication section 127. Furthermore, a communication section 129, a frequency adjustment section 130, and an antenna 128 are provided at the rear end of the bridge section 203. The photographing information of each camera 121, 123, 126 is transmitted to the frequency adjustment section 130 by wireless communication. In place of the wall portion 151 of the building 150 in FIG. 1, an antenna 31A, a frequency adjustment section 32A, and an antenna 31B are provided on a fixed pedestal 160.

[Form 1]
A crane remote control system that remotely controls a crane that suspends an object,
a photographing section provided on the crane;
a frequency adjustment unit provided in the crane and adjusting the frequency of photographing information received from the photographing unit via wireless communication;
A crane remote control system comprising: an antenna provided on the crane and communicating with ground equipment on the ground side.
[Form 2]
The crane remote control system according to claim 1, wherein the frequency adjustment section adjusts the photographing information to a frequency of 4.9 GHz.
[Form 3]
The crane remote control system according to Form 1 or 2, wherein communication is performed at a frequency of 2.4 GHz or 5.6 GHz between the photographing section and the frequency adjustment section.
[Form 4]
4. The crane remote control system according to any one of modes 1 to 3, wherein the antenna receives crane control information adjusted to a frequency of 4.9 GHz from the ground equipment.
[Form 5]
5. The crane remote control system according to any one of modes 1 to 4, wherein the photographing section is provided in a movable section that is movable relative to a crane main body of the crane.
[Form 6]
The crane main body is a girder,
The crane remote control system according to embodiment 5, wherein the photographing section is provided on a hanging section suspended from a trolley that can traverse on the girder.
[Form 7]
7. The crane remote control system according to any one of modes 1 to 6, wherein the antenna of the ground equipment is provided at a position facing the crane in the traveling direction.
[Form 8]
A crane remote control system that remotely controls a crane that suspends an object,
comprising a communication section provided on the crane,
The communication unit is a crane remote control system that performs wireless communication at 4.9 GHz with ground equipment on the ground side.

1... Crane, 21, 24, 121, 123, 127... Camera (imaging section), 27, 127... Frequency adjustment section, 50... Communication section, 100, 200... Crane remote control system.

Claims (8)

A crane remote control system that remotely controls a crane that suspends an object,
a photographing section provided on the crane;
a frequency adjustment unit provided in the crane and adjusting the frequency of photographing information received from the photographing unit via wireless communication;
A crane remote control system comprising: an antenna provided on the crane and communicating with ground equipment on the ground side. The crane remote control system according to claim 1, wherein the frequency adjustment section adjusts the photographing information to a frequency of 4.9 GHz. The crane remote control system according to claim 1, wherein communication is performed between the photographing section and the frequency adjustment section at a frequency of 2.4 GHz or 5.6 GHz. The crane remote control system of claim 1, wherein the antenna receives crane control information tuned to a frequency of 4.9 GHz from the ground equipment. The crane remote control system according to claim 1, wherein the photographing section is provided in a movable section that is movable relative to a crane main body of the crane. The crane main body is a girder,
The crane remote control system according to claim 5, wherein the photographing section is provided on a hanging section suspended from a trolley that can traverse on the girder. The crane remote control system according to claim 1, wherein the antenna of the ground equipment is provided at a position facing the crane in the traveling direction. A crane remote control system that remotely controls a crane that suspends an object,
comprising a communication section provided on the crane,
The communication unit is a crane remote control system that performs wireless communication at 4.9 GHz with ground equipment on the ground side.

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