JP6753082B2 - Voice control device for cranes - Google Patents

Description

The present invention relates to a voice operating device for a crane, and more particularly to a voice operating device for a crane that operates a crane based on a voice instruction from an operator who grasps the work by the crane.

Generally, in crane work, there is a situation in which an operator who operates the crane cannot grasp the work by the crane, for example, a situation in which the suspended load suspended from the crane cannot be clearly seen. At this time, it is required that an operator who can visually recognize the suspended load suspended from the crane, for example, an operator who slings the suspended load, remotely controls the crane on behalf of the operator.

However, many workers use their hands, such as attaching both hands to the suspended load, and it is difficult to remotely control the crane by hand. Therefore, a voice operation device for a crane has been proposed in which the crane is operated by the voice of an operator without using hands.

For example, Patent Document 1 proposes a voice-operated crane operation system that saves labor by allowing an operator to concurrently serve as an assistant for a suspended load by operating the crane by the voice of the operator. In this voice-operated crane operation system, the operator can drive the crane by transmitting commands by voice, so by attaching a portable transmitter to the body, both hands can be used freely to perform the work. Can be done.

Japanese Unexamined Patent Publication No. 10-120364

However, the voice-operated crane operation system of Patent Document 1 operates the crane operation type and operation speed according to the voice of the operator, and does not quantitatively operate the crane from the current posture to the target posture. Therefore, after operating the crane according to the voice instruction of the operator, it is necessary to transmit the voice instruction again to stop the operation in order to stop the crane in the target posture.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a voice operating device for a crane that quantitatively operates a crane from a current posture to a target posture.

The voice operating device for a crane according to the present invention analyzes a voice input unit for inputting a voice instruction from an operator who grasps the work by the crane and a voice instruction input to the voice input unit to obtain a target attitude of the crane. With the voice analysis unit that obtains the displacement direction and amount of displacement of the crane as operation information, the crane operation unit that operates the crane to the target posture based on the operation information obtained by the voice analysis unit, and the crane operation lever. The operation changeover switch that switches between the lever operation mode for operating the crane and the voice operation mode for operating the crane by the voice instruction input to the voice input unit, the attitude detection unit for detecting the attitude of the crane, and the voice analysis unit are required. It is equipped with a target attitude calculation unit that calculates the target attitude based on the operation information and the current attitude of the crane detected by the attitude detection unit, and the target attitude calculation unit determines whether the target attitude is within the operating limit of the crane. When it is determined that the target attitude is within the operating limit of the crane, the control signal for the target attitude is output to the crane operation unit as it is, and when it is determined that the target attitude is outside the operating limit of the crane, the crane operates. The control signal for the target attitude is modified so that it is displaced within the limit, the modified control signal is output to the crane operation unit, and the crane operation unit operates the crane based on the control signal input from the target attitude calculation unit. it is shall be operated.

Here, the voice analysis unit can extract the operation type of the crane, the numerical value representing the displacement amount of the crane depending on the operation type, and the unit of the numerical value from the voice instruction as operation information.
In addition, the voice analysis unit extracts the moving direction of the suspended load suspended from the crane, the numerical value indicating the moving distance of the suspended load, and the unit of the numerical value as the moving information of the suspended load from the voice instruction, and obtains the suspended load. It is also possible to calculate the displacement direction and displacement amount of the crane based on the movement information.

Further, it further has a voice information storage unit that stores a plurality of voice information used for voice instructions in advance, and the voice analysis unit searches the voice information storage unit based on the voice instructions input to the voice input unit. It is preferable to obtain the operation information by.

In addition, the crane operating unit can operate the crane so as to slowly start moving from the current posture of the crane and stop at the target posture.

In addition, it also has an operation confirmation unit that outputs the operation information requested by the voice analysis unit to the operator, and the crane operation unit operates the crane after the operator confirms the operation information output from the operation confirmation unit. Can be operated.

According to the present invention, since the voice analysis unit analyzes the voice instruction input to the voice input unit to obtain the displacement direction and displacement amount of the crane indicating the target posture of the crane as operation information, the crane R is obtained from the current posture. It is possible to provide a voice operating device for a crane that quantitatively operates up to a target posture.

It is a block diagram which shows the structure of the voice operation apparatus for a crane which concerns on Embodiment 1 of this invention. It is a figure which shows the state of winding down a wire by a crane car. It is a flowchart which shows the operation of the instruction input part in Embodiment 1. It is a figure which shows the voice information stored in the voice information storage part of Embodiment 1. It is a flowchart which shows the operation of the apparatus main body in Embodiment 1. FIG. It is a block diagram which shows the structure of the instruction input part in the voice operation device for a crane which concerns on Embodiment 2. FIG. It is a figure which shows the state which the suspended load is horizontally moved rearward by a crane car. It is a figure which shows the voice information stored in the voice information storage part of Embodiment 2. It is a figure which shows the mode that the suspended load is slowly started and stopped in the third embodiment. It is a block diagram which shows the structure of the instruction input part in the voice operation device for a crane which concerns on Embodiment 4. FIG.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
Embodiment 1
FIG. 1 shows a configuration of a voice operating device for a crane according to a first embodiment of the present invention. This voice operating device for a crane has an instruction input unit 1 and a device main body 2 arranged on the crane wheel T.

The instruction input unit 1 has a voice input unit 3, and a voice analysis unit 4, a signal conversion unit 5, and a wireless transmission unit 6 are sequentially connected to the voice input unit 3. Further, a voice information storage unit 7 is connected to the voice analysis unit 4.
The voice input unit 3 inputs a voice instruction of an operator, and is composed of a microphone or the like.

The voice analysis unit 4 analyzes the voice instruction input to the voice input unit 3 to obtain the displacement direction and the displacement amount of the crane indicating the target posture of the crane as operation information. Specifically, the voice analysis unit 4 extracts from the operator's voice instructions the operation type of the crane, the numerical value indicating the displacement amount of the crane according to the operation type, and the unit of the numerical value as operation instructions. At this time, the voice analysis unit 4 extracts the operation information by searching the voice information storage unit 7 based on the voice instruction input to the voice input unit 3.
The types of operation of the crane include "winding up" and "rolling down" the wire that suspends the suspended load, "raising" and "laying down" the boom, "extending" and "shrinking" the boom, and "right-handed rotation" of the swivel table. Examples include "turn" and "turn left", and "stop" the crane operation. In addition, the unit includes "meter" and "centimeter" related to the displacement distance of the crane, "degree" related to the displacement angle of the crane, and the like.

The voice information storage unit 7 stores a plurality of voice information used for voice instructions in advance. Specifically, the voice information storage unit 7 stores a plurality of voice information indicating the operation type of the crane, a plurality of voice information indicating a numerical value, and a plurality of voice information indicating a unit.
The signal conversion unit 5 converts the operation information obtained by the voice analysis unit 4 into a control signal for controlling the operation of the crane and outputs it to the wireless transmission unit 6.
The wireless transmission unit 6 generates a transmission signal modulated based on the control signal converted by the signal conversion unit 5, and wirelessly transmits the transmission signal via the antenna.

The device main body 2 has a wireless receiving unit 8, and a target posture calculating unit 9 and a crane operating unit 10 are sequentially connected to the wireless receiving unit 8. Further, the main body control unit 11 is connected to the wireless reception unit 8, the target attitude calculation unit 9, and the crane operation unit 10, and the operation changeover switch 12 and the attitude detection unit 13 are connected to the main body control unit 11, respectively.

The operation changeover switch 12 switches between a lever operation mode in which the crane is operated by the operation lever of the crane vehicle T and a voice operation mode in which the crane is operated by the voice instruction input from the instruction input unit 1. It is located in the cab.
The attitude detection unit 13 detects the attitude of the crane. Here, the crane includes a boom, a swivel and a wire for suspending the suspended load. In addition, the posture of the crane includes the length due to the expansion and contraction of the boom, the undulation angle of the boom, the turning angle of the swivel table, the winding length of the wire, and the like.
The main body control unit 11 controls the wireless reception unit 8, the target posture calculation unit 9, and the crane operation unit 10.

The radio reception unit 8 receives the transmission signal transmitted from the radio transmission unit 6, demodulates the transmission signal, and outputs the crane control signal obtained to the target attitude calculation unit 9.
The target attitude calculation unit 9 calculates the target attitude of the crane based on the control signal and the current attitude of the crane detected by the attitude detection unit 13. The target posture calculation unit 9 determines whether or not the calculated target posture of the crane is within the operating limit of the crane, and if it is within the operating limit of the crane, outputs a control signal to the crane operation unit 10.
The crane operation unit 10 is connected to the crane R of the crane vehicle T via the crane drive unit D, and the crane R is displaced to the target posture by driving the crane drive unit D based on the control signal. ..

In such a device main body 2, the target posture calculation unit 9, the crane operation unit 10, and the main body control unit 11 are composed of a CPU and an operation program for causing the CPU to perform various processes, and these are digital circuits. It may be composed of. The operation program is stored in a recording medium such as a hard disk.

Next, the operation of the first embodiment will be described.
First, the crane work is performed by the crane vehicle T in which the device main body 2 of the voice operating device for the crane shown in FIG. 1 is arranged. For example, as shown in FIG. 2, in the crane R of the crane vehicle T, the suspended load N is suspended on the wire W, and the crane operation of lowering the suspended load N on the opposite side of the obstacle wall L with respect to the crane vehicle T is performed. Therefore, the operator P who operates the crane R in the cabin K of the crane vehicle T performs the crane work in a situation where the suspended load N cannot be directly visually recognized because of being blocked by the obstacle wall L. Here, it is assumed that the apparatus main body 2 is arranged in the cabin K of the crane vehicle T, and the instruction input unit 1 is carried by the worker S who slings the suspended load N.

When it becomes difficult for the operator P to grasp the position of the suspended load N, the operation changeover switch 12 of the apparatus main body 2 is turned on, and the lever operation mode in which the crane is operated by the operation lever of the crane vehicle T is changed to the instruction input unit 1. Switch to the voice operation mode in which the crane is operated by inputting voice instructions.

When the operation changeover switch 12 is switched in this way, the operator S lowers the suspended load N to the target position M by, for example, "winding down 1 meter" with respect to the voice input unit 3 of the instruction input unit 1. ", And give a voice instruction. As a result, as shown in the flowchart of FIG. 3, in step S1, the voice instruction of the worker S is input to the voice input unit 3.

The voice input unit 3 outputs the voice instruction to the voice analysis unit 4, and in step S2, the voice analysis unit 4 analyzes the voice instruction. Specifically, the voice analysis unit 4 searches the voice information storage unit 7 based on the voice instruction. As shown in FIG. 4, a plurality of voice information used for voice instruction is stored in advance in the voice information storage unit 7 for each operation type, numerical value, and unit of the crane R. The voice analysis unit 4 compares the voice instruction of the worker S with the plurality of voice information of the voice information storage unit 7, and extracts the operation type, numerical value, and unit of the crane R similar to the voice instruction as operation information. That is, as the operation information, it can be obtained that the operation type of the crane R is "winding down", the numerical value is "1", and the unit is "meter". As a result, the displacement direction and the amount of displacement of the crane indicating the target posture of the crane R can be obtained.

In this way, the voice analysis unit 4 can smoothly obtain the operation information by searching the voice information storage unit 7 in which a plurality of voice information is stored. It is preferable that the voice information storage unit 7 also stores peripheral voices that are generally used in the same meaning as the above voice information. For example, "centimeter" is "centimeter" and "right". "Right" for "turn" and "left" for "left turn" can be stored as peripheral sounds.

The operation information obtained by the voice analysis unit 4 is output to the signal conversion unit 5. Then, in step S3, the signal conversion unit 5 converts the operation information of the voice instruction into a control signal for controlling the operation of the crane R, and in step S4, the control signal is transmitted via the wireless transmission unit 6.
In this way, since the voice instruction is analyzed and the voice information is converted into the control signal before being transmitted from the wireless transmission unit 6, the transmission amount can be suppressed, and the control signal can be smoothly transmitted from the wireless transmission unit 6. Can be done.

As shown in the flowchart of FIG. 5, the control signal transmitted from the wireless transmission unit 6 is received by the wireless reception unit 8 of the device main body 2 in step S5. Then, the main body control unit 11 connected to the wireless reception unit 8 determines in step S6 whether or not the operation changeover switch 12 is switched to the voice operation mode.
When the main body control unit 11 determines that the mode has not been switched to the voice operation mode, the main body control unit 11 does not output the control signal from the wireless reception unit 8, and the operation of the crane R by the voice instruction is not executed.
On the other hand, when the main body control unit 11 determines that the voice instruction mode has been switched, the main body control unit 11 outputs a control signal from the wireless reception unit 8 to the target posture calculation unit 9. Further, the main body control unit 11 detects the current posture of the crane R via the posture detection unit 13 in step S7, and outputs the posture information to the target posture calculation unit 9.

In step S8, the target attitude calculation unit 9 calculates the target attitude of the crane R based on the control signal input from the radio reception unit 8 and the current attitude of the crane R detected by the attitude detection unit 13. Then, in step S9, the target posture calculation unit 9 determines whether or not the target posture of the crane R is within the operating limit of the crane R.

Here, the operating limit of the crane R indicates an operating limit due to various factors related to the crane R, such as a limit due to a mechanical factor, a limit due to a performance factor, and a limit due to a control functional factor. For example, the limit due to mechanical factors includes the limit angle of the boom B due to the stroke end of the undulating cylinder, the limit length of the boom B due to the total extension and contraction of the boom B, and the like. The limits due to performance factors are the limit angle of the boom B, which is overloaded and stopped when the boom B is laid down while the suspended load N is suspended, and the outrigger is extended to turn the suspended load N while suspended. Examples thereof include the limit turning angle of the swivel table V that is overloaded and stopped when the table V is turned. Further, as the limit due to the control functional factor, for example, when the work range limiting function for avoiding interference with surrounding objects is set, the limit length of the boom B whose lift is limited and the turning range is limited. Examples include the limit turning angle of the platform V.

When the target posture calculation unit 9 determines that the target posture is within the operating limit of the crane R, the target posture calculation unit 9 outputs the control signal as it is to the crane operation unit 10.
On the other hand, when the target posture calculation unit 9 determines that the target posture is outside the operating limit of the crane R, the target posture calculation unit 9 proceeds to step S10 and corrects the control signal so that the crane R is displaced within the operating limit. At this time, it is preferable that the target attitude calculation unit 9 corrects the control signal so that the crane R is displaced until just before the operation limit. The target attitude calculation unit 9 outputs the corrected control signal to the crane operation unit 10.
By calculating the target posture of the crane R in advance in this way, the crane R can be operated safely.

Subsequently, in step S11, the crane operating unit 10 operates the crane R via the crane driving unit D based on the control signal input from the target posture calculating unit 9. As a result, the crane R can be displaced to the target posture in which the wire W is wound down by 1 meter, and the suspended load N can be placed at the target position M.
According to the present embodiment, the voice analysis unit 4 analyzes the voice instruction input to the voice input unit 3 to obtain the displacement direction and the displacement amount of the crane R indicating the target posture of the crane R as operation information. R can be quantitatively manipulated from the current posture to the target posture.

Embodiment 2
In the first embodiment, the voice analysis unit 4 extracts the operation type of the crane R, the numerical value indicating the displacement amount of the crane R depending on the operation type, and the unit of the numerical value as operation information from the voice instruction. It suffices if the displacement direction and the displacement amount can be obtained as operation information, and the present invention is not limited to this.
For example, as shown in FIG. 6, in the instruction input unit 1 of the first embodiment, the voice analysis unit 21 is arranged in place of the voice analysis unit 4, and the voice information storage unit 22 is arranged in place of the voice information storage unit 7. can do.

The voice analysis unit 21 extracts the moving direction of the suspended load N, the numerical value indicating the moving distance of the suspended load N, and the unit of the numerical value as the moving information of the suspended load N from the voice instruction, and uses the movement information of the suspended load N as the movement information. Based on this, the displacement direction and displacement amount of the crane R are calculated. Here, the voice analysis unit 21 extracts the movement information of the suspended load N by searching the voice information storage unit 22 based on the voice instruction input to the voice input unit 3.
Examples of the moving direction of the suspended load N include "front", "rear", "left", "right", "upper", and "lower". Further, examples of the unit include "meter" and "centimeter".
The voice information storage unit 22 stores in advance a plurality of voice information indicating the moving direction of the suspended load N, a plurality of voice information representing a numerical value, and a plurality of voice information representing a unit.

A voice instruction is input from the worker S to the voice input unit 3 of the instruction input unit 1. For example, as shown in FIG. 7, the worker S voice-instructs, for example, "1 meter backward" in order to move the suspended load N rearward with respect to the crane vehicle T.
When this voice instruction is input from the voice input unit 3 to the voice analysis unit 21, the voice analysis unit 21 searches the voice information storage unit 22 based on the voice instruction. As shown in FIG. 8, a plurality of voice information used for voice instruction is stored in advance in the voice information storage unit 22 for each numerical value and numerical unit representing the moving direction of the suspended load N and the moving distance of the suspended load N. Has been done. The voice analysis unit 21 compares the voice instruction of the worker S with the plurality of voice information of the voice information storage unit 22, and sets the movement direction, numerical value, and unit of the suspended load N similar to the voice instruction as the movement information of the suspended load N. Extract as. That is, as the movement information of the suspended load N, it can be obtained that the moving direction of the suspended load N is "rear", the numerical value is "1", and the unit is "meter". It is preferable that the voice information storage unit 22 also stores peripheral voices that are generally used in the same meaning as the above voice information.

Further, the voice analysis unit 21 calculates the operation type of the crane R, the numerical value representing the displacement amount of the crane R according to the operation type, and the unit of the numerical value as the operation information of the crane R based on the obtained movement information of the suspended load N. To do. At this time, in order to move the suspended load N horizontally to the rear, it is necessary to raise the boom B and lower the wire W. For example, "raising 10 degrees" and "lowering 1 meter" are used as operation information. Can be obtained as. As a result, the displacement direction and the amount of displacement indicating the target posture of the crane R can be obtained.

The operation information obtained by the voice analysis unit 21 is transmitted to the device main body 2 via the wireless transmission unit 6 as in the first embodiment, and the crane operation unit 10 of the device main body 2 is based on the operation information to the crane R. Perform the operation of. As a result, the crane R can move the suspended load N by 1 meter after the boom B is raised 10 degrees and the wire W is displaced to the target posture in which the wire W is wound by 1 meter.
According to the present embodiment, the voice analysis unit 21 extracts the moving direction of the suspended load N, the numerical value indicating the moving distance of the suspended load N, and the unit of the numerical value from the voice instruction as the movement information of the suspended load N. Since the displacement direction and displacement amount of the crane R are calculated based on the movement information of the suspended load N, the operator S can easily operate the crane R only by voice-instructing the moving direction and the moving amount of the suspended load N. Can be done.

Embodiment 3
In the first and second embodiments described above, it is preferable that the crane operating unit 10 operates the crane R so that the crane R starts moving from the current posture and stops at the target posture, respectively.

For example, as shown in FIG. 9, in the first embodiment, when the suspended load N is moved in the horizontal direction, the crane operating unit 10 gently starts the crane R from the current posture, that is, a so-called slow start. After that, the suspended load N is moved horizontally at a normal speed. Then, when the crane R reaches just before the target posture, the moving speed is slowed down and the crane R is stopped, so-called slow stop. At this time, it is preferable that the crane operating unit 10 slowly starts and stops according to the moving distance of the suspended load N. For example, the crane operating unit 10 slowly starts and stops when the moving distance of the suspended load N is as large as 1 m or more, and slowly moves all when the moving distance of the suspended load N is as small as less than 1 m. It can be carried out.
According to this embodiment, the suspended load N can be safely moved by slowly starting and slowly stopping the crane R.

Embodiment 4
In the above-described first to third embodiments, it is preferable that the operator S confirms the operation information obtained by the voice analysis unit and then operates the crane based on the operation information.
For example, as shown in FIG. 10, in the instruction input unit 1 of the first embodiment, the operation confirmation unit 41 can be newly arranged between the voice analysis unit 4 and the signal conversion unit 5. The operation confirmation unit 41 outputs the operation information obtained by the voice analysis unit 4 to the operator S.

Similar to the first embodiment, when the voice analysis unit 4 obtains the operation information of "winding down 1 meter", the operation confirmation unit 41 says, for example, "operates with the winding down 1 meter". Output to. When the worker S determines that the output content is different from the voice instruction, the worker S inputs "stop" and the voice instruction to the voice input unit 3. As a result, the operation information is not output to the signal conversion unit 5, and the crane operation by voice instruction is forcibly stopped.
On the other hand, when the worker S determines that the output content from the operation confirmation unit 41 is the same as the voice instruction, the worker S stands by as it is. If the voice input unit 3 does not input "stop" for a certain period of time or longer, the operation information is output to the signal conversion unit 5, and the crane operation unit 10 performs the crane operation based on the operation information.

According to the present embodiment, since the crane operation unit 10 operates the crane R after the operator S confirms the operation information output from the operation confirmation unit 41, the crane R can be safely operated by voice.

In the above-described first to fourth embodiments, it is preferable that the voice analysis unit has a predetermined rule for analyzing the voice instruction. For example, the voice analysis unit can set rules so that the voice instruction is analyzed in the order of the operation type, numerical value, and unit of the crane R. When the operator S inputs the voice instruction to the voice input unit 3 in the order of the operation type, the numerical value, and the unit of the crane R, the voice analysis unit analyzes the input voice instruction according to the above rule.
In this way, the analysis speed of the voice instruction can be improved by predetermining the rules for the voice analysis unit to analyze the voice instruction.

Further, in the above-described first to fourth embodiments, it is preferable that the voice analysis unit obtains the operation information, determines whether or not the combination of the operation information is correct, and detects an erroneous analysis of the voice instruction. For example, in the voice analysis unit, when the operation information of the crane R with the operation type of "winding down", the numerical value of "1", and the unit of "degree" is obtained, the combination of the operation type and the unit is incorrect. The crane operation can be stopped by making a judgment and assuming that the voice instruction is erroneously analyzed. Further, even when the operation information of the crane R whose operation type is "down", the numerical value is "10", and the unit is "meter" is obtained, the voice analysis unit has an excessively large displacement amount of the crane R. It can be determined that the combination of operation information is incorrect.
In this way, the voice analysis unit determines whether or not the combination of operation information is correct, so that the crane R can be safely operated by voice.

Further, in the above-described first to fourth embodiments, the voice analysis unit obtains the displacement direction and the displacement amount of the crane R by searching the voice information storage unit based on the voice instruction input to the voice input unit 3. However, it suffices if the displacement direction and the amount of displacement of the crane R can be obtained, and the present invention is not limited to this. For example, the voice analysis unit can directly obtain the displacement direction and the displacement amount of the crane R from the voice instruction input to the voice input unit 3.

1 instruction input unit, 2 device body, 3 voice input unit, 4,21 voice analysis unit, 5 signal conversion unit, 6 radio transmission unit, 7,22 voice information storage unit, 8 radio reception unit, 9 target attitude calculation unit, 10 Crane operation unit, 11 Main unit control unit, 12 Operation changeover switch, 13 Attitude detection unit, 41 Operation confirmation unit, T crane car, D crane drive unit, R crane, W wire, B boom, V swivel, K cabin, N Suspended load, L Obstacle wall, P Operator, S Worker.

Claims (6)

A voice input unit that inputs voice instructions from the operator who grasps the work by the crane,
A voice analysis unit that obtains the displacement direction and displacement amount of the crane indicating the target posture of the crane as operation information by analyzing the voice instruction input to the voice input unit.
A crane operation unit that operates the crane to the target posture based on the operation information obtained by the voice analysis unit.
An operation changeover switch that switches between a lever operation mode in which the crane is operated by the operation lever of the crane and a voice operation mode in which the crane is operated by the voice instruction input to the voice input unit .
An attitude detection unit that detects the attitude of the crane and
A target posture calculation unit for calculating the target posture based on the operation information obtained by the voice analysis unit and the current posture of the crane detected by the posture detection unit is provided .
The target posture calculation unit determines whether or not the target posture is within the operating limit of the crane, and when the target posture is determined to be within the operating limit of the crane, the control signal for the target posture is used as it is. Output to the crane operation unit, and when it is determined that the target posture is outside the operating limit of the crane, the control signal for the target posture is corrected so that the crane is displaced within the operating limit, and the corrected control signal. Is output to the crane operation unit.
The crane operation unit, the target posture input from calculator control signal crane voice operation device you manipulate the crane based on. The crane according to claim 1, wherein the voice analysis unit extracts the operation type of the crane, a numerical value representing the displacement amount of the crane by the operation type, and a unit of the numerical value as the operation information from the voice instruction. Voice control device for. The voice analysis unit extracts from the voice instruction the moving direction of the suspended load suspended from the crane, the numerical value representing the moving distance of the suspended load, and the unit of the numerical value as the moving information of the suspended load. The voice operation device for a crane according to claim 1, wherein the displacement direction and the displacement amount of the crane are calculated based on the movement information of the suspended load. It further has a voice information storage unit that stores a plurality of voice information used for the voice instruction in advance.
The crane use according to any one of claims 1 to 3, wherein the voice analysis unit searches for the voice information storage unit based on the voice instruction input to the voice input unit to obtain the operation information. Voice control device. The crane voice according to any one of claims 1 to 4 , wherein the crane operating unit operates the crane so as to slowly start moving the crane from the current posture and stop the crane in the target posture. Operating device. It also has an operation confirmation unit that outputs the operation information obtained by the voice analysis unit to the operator.
The voice operation device for a crane according to any one of claims 1 to 5 , wherein the crane operation unit operates the crane after the operator confirms the operation information output from the operation confirmation unit.

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