Crane equipment and crane control system

Abstract

The invention provides crane equipment and a crane control system, which can accumulate the latest operation information of the crane equipment in a data server, and can browse operation information and emergency information with a large amount of information through a movable information display terminal according to needs. The crane equipment is provided with a plurality of driving motors, a crane control part 15 and a communication part 22, wherein the driving motors at least comprise a hoisting motor 3 and a moving motor 5; the crane control part 15 is used for controlling the driving motors; the communication part 22 is connected with the crane control part 15; the communication unit 22 has a function of periodically transmitting the operation information to the cloud server 24 via the remote communication network, and a function of transmitting the operation information to the mobile information display terminal 26 in response to a request from the information display terminal via the short-range communication network. According to the invention, the latest operation information of the crane equipment can be stored in the data server, and the operation information can be browsed by using the movable information display terminal according to needs.

Description

Technical Field

[0001] The present invention relates to a crane device and a crane control system, and in particular to a crane device and a crane control system for transmitting and receiving operation information and the like to and from an external information device. Background Art

[0002] For example, in a building such as a factory, a crane system is installed that includes a hoisting motor for vertically moving a hanging weight such as a manufactured structural component and a moving motor for moving the suspended hanging weight along a rail installed on the ceiling.

[0003] The hoisting motor runs along a track laid along the ceiling of the building, and the hoisting motor has a rope drum for winding a wire rope. The rope drum is rotated by the hoisting motor and has the function of winding and releasing the wire rope connected to the load.

[0004] In addition, the crane equipment has a moving motor for traveling on the rail, and the hoisting motor is moved along the rail by driving the moving motor. In addition, hereinafter, one or both of the hoisting motor and the moving motor may be combined and recorded as a driving motor.

[0005] In such crane equipment, it is necessary to know the operating status of the crane equipment for maintenance and management. However, the driving motors for hoisting and moving are mainly installed on the ceiling of the factory, and their control units are generally integrated with the driving motors. In the maintenance and management such as inspection or response to failure, when confirming the operating information of the driving motor, the maintenance and management workers need to climb onto the ceiling where the driving motor is installed. Therefore, depending on the installation location of the driving motor, it takes time to prepare an aerial work vehicle, etc. to ensure safety.

[0006] In order to solve such a problem, for example, a crane management system described in Japanese Patent Application Laid-Open No. 2014-34260 (Patent Document 1) is known. In Patent Document 1, a first information processing device provided in a driving motor acquires operating information, and a second information processing device that is portable and carried near a first control device transmits the collected operating information, thereby enabling the operating information of the driving motor to be confirmed from the ground near the driving motor without climbing onto the ceiling where the driving motor is provided.

[0007] In the crane management system of Patent Document 1, a first information processing device capable of controlling the operation in accordance with each purpose of hoisting, transverse travel, and longitudinal travel is installed in the crane equipment, and a second information processing device requests the first information processing device to send information about the operation of the first information processing device, receives the information sent from the first information processing device in accordance with the request, and stores the received information in its own storage unit in association with the operation information of the crane equipment. Furthermore, the second information control device can also be configured to be able to communicate with a third control device such as a cloud server.

[0008] Prior art literature

[0009] Patent Literature

[0010] Patent Document 1: Japanese Patent Application Publication No. 2014-34260 Summary of the invention

[0011] Problems to be solved by the invention

[0012] However, in Patent Document 1, the first information processing device and the second control device are equipped with a communication device that is capable of short-range (near field) communication such as Wi-Fi (registered trademark) or Bluetooth (registered trademark). Therefore, if the second information processing device is not brought within the range where the radio waves sent by the first information processing device can reach, various information cannot be collected. For example, there is a risk that the remaining life of the components of the crane equipment installed in the second information processing device cannot be calculated at any time, and the state where the components of the crane equipment have exceeded their life will not be noticed.

[0013] In addition, although it is possible to communicate with a data server such as a cloud serving as a third information processing device via Internet communication, the third information processing device is structured to be able to communicate only with the second information processing device. Therefore, if the second information processing device does not obtain operating information from the first information processing device, the latest information cannot be sent to the third information processing device, resulting in the problem that the third information processing device cannot obtain the latest operating information one by one.

[0014] For example, even if the remaining life is calculated on the data server side, the remaining life cannot be calculated unless the second information processing device is brought within the reach of the radio waves transmitted by the first information processing device.

[0015] An object of the present invention is to provide a crane device and a crane control system capable of sequentially storing operation information of the crane device in a data server and enabling browsing of the operation information using a portable information display terminal as needed.

[0016] Technical solutions to solve problems

[0017] The present invention is a crane device, which has a plurality of drive motors including at least a hoisting motor and a moving motor, a crane control unit that controls each drive motor, and a communication unit connected to the crane control unit, characterized in that the communication unit has: a function of regularly sending operating information of the crane device to a cloud server via a long-distance communication network; and a function of sending operating information to a movable information display terminal in response to a request from the information display terminal via a short-distance communication network.

[0018] Effects of the Invention

[0019] According to the present invention, the latest operation information of the crane equipment can be stored in the data server, and the operation information can be browsed using a portable information display terminal as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram showing the overall structure of a crane system to which the present invention is applied.

[0021] Figure 2 This is a block diagram showing the configuration of a crane control system according to the first embodiment of the present invention.

[0022] Figure 3 It means that Figure 2 The block diagram of the simplified structure of the crane control system is shown.

[0023] Figure 4 This is a block diagram showing a simplified structure of a crane control system according to a second embodiment of the present invention.

[0024] Figure 5 This is a block diagram showing a simplified structure of a crane control system according to a third embodiment of the present invention.

[0025] Figure 6 This is a block diagram showing a simplified structure of a crane control system according to a fourth embodiment of the present invention.

[0026] Figure 7 This is a circuit diagram showing a circuit for a method of supplying power to a wireless communication unit. DETAILED DESCRIPTION

[0027] Hereinafter, embodiments of the present invention will be described in detail using the drawings, but the present invention is not limited to the following embodiments, and various modifications and application examples within the technical concept of the present invention are also included within the scope of the present invention.

[0028] Figure 1 The overall structure of the inverter crane equipment to which the present invention is applied is shown. Figure 2The configuration of a crane control system according to an embodiment of the present invention is shown.

[0029] Figure 1 In the embodiment, the inverter crane equipment is composed of a crane hook 1, a wire rope 2, a hoisting induction motor 3, a hoisting drum 4, a transverse induction motor 5, a transverse wheel 6, a transverse bridge 7, a longitudinal induction motor 8, a longitudinal wheel 9, a longitudinal bridge 10, a hoisting / transverse inverter control device 11, an operation input device 12 suspended by a rope, and a longitudinal inverter control device 13. In addition, the hoisting induction motor 3, the transverse induction motor 5, and the longitudinal induction motor 8 are each equipped with an induction motor brake 14 (see FIG. 1 ). Figure 2 ).

[0030] The inverter crane equipment moves the load attached to the crane hook 1 by hoisting the wire rope 2 up and down with the hoisting drum 4 rotated by the hoisting induction motor 3, in the vertical direction (indicated by the arrows in the Y direction and the -Y direction), that is, in the up-down direction. In addition, the transverse induction motor 5 rotates the transverse wheels 6, and moves the load in the left-right direction (indicated by the arrows in the X direction and the -X direction) along the transverse bridge 7. Furthermore, the longitudinal induction motor 8 rotates the longitudinal wheels 9, and moves the load in the front-back direction (indicated by the arrows in the Z direction and the -Z direction) along the longitudinal bridge 10.

[0031] like Figure 2 As shown in FIG. 1 , a hoisting / transverse inverter control unit 15, a hoisting inverter 16, and a transverse inverter 17 are built into the hoisting / transverse inverter control unit 11. In addition, a longitudinal inverter control unit 18 and a longitudinal inverter 19 are built into the longitudinal inverter control unit 13. In addition, the hoisting / transverse inverter control unit 15 and the longitudinal inverter control unit 18 are connected via a communication line (wired) 20.

[0032] The hoisting induction motor 3 and the traverse induction motor 5 are controlled by the hoisting / traverse inverter control unit 15 stored in the hoisting / traverse inverter control device 11. That is, when the operator inputs a predetermined instruction from the operation input device 12, the hoisting / traverse inverter control unit 15 gives the hoisting inverter 16 and the traverse inverter 17 the action information required for the control. In addition, the encoder 21 is installed in the hoisting induction motor 3, and the rotation information of the hoisting induction motor 3 is input to the hoisting / traverse inverter control unit 15.

[0033] Then, the hoisting inverter 16 and the traversing inverter 17 apply necessary frequency, voltage, and current to the hoisting induction motor 3 and the traversing induction motor 5, and release control is performed on the induction motor brake 14. Thus, in the case of the hoisting drum 4, the weight mounted on the crane hook 1 is moved in the vertical direction without falling, and in the case of the traversing wheel 6, the traversing wheel 6 is moved in the left-right direction along the traversing bridge 7.

[0034] Similarly, with respect to the longitudinal induction motor 8 mounted on the longitudinal wheel 9, when the operator inputs a prescribed instruction from the operation input device 12, the longitudinal inverter control unit 18 stored in the longitudinal inverter control device 13 controls the longitudinal inverter 19, and the longitudinal inverter 19 applies the necessary frequency, voltage, and current to the longitudinal induction motor 8, and at the same time controls the release of the induction motor brake 14, thereby moving the longitudinal wheel 9 in the front-rear direction along the longitudinal bridge 10.

[0035] Furthermore, a wireless communication unit 22 is provided in the hoisting / traverse inverter control device 15, and the wireless communication unit 22 is connected to the hoisting / traverse inverter control device 15 via a communication line 23. In addition, the longitudinal inverter control device 19 is connected to the hoisting / traverse inverter control device 15 via a communication line 20. Therefore, the operation information of the crane equipment in the longitudinal inverter control device 19 and the hoisting / traverse inverter control device 15 and the operation information of the motor (operation information such as the current value and the instantaneous current value) are sent to the wireless communication unit 22.

[0036] The wireless communication unit 22 has a long-distance communication unit for long-distance (remote) communication and a short-distance communication unit for short-distance communication, and regularly communicates with the cloud server 24, and communicates with the information display terminal 26 as required in response to a request from the mobile information display terminal 26. In addition, the wireless communication unit 22 has a communication antenna 22L for long-distance communication and a communication antenna 22S for short-distance communication.

[0037] The wireless communication unit 22 is bidirectionally connected to the communication antenna 25A of the communication unit 25 of the cloud server 24 composed of a data server having a computing function through a long-distance communication network. In addition, the communication antenna 25A of the cloud server 24 is also connected to the mobile information display terminal 26 having a communication unit through the long-distance communication network. Furthermore, the wireless communication unit 22 is bidirectionally connected to the mobile information display terminal 26 through the short-distance communication network. The communication unit 27 of the information display terminal 25 has a communication antenna 27L for long-distance communication and a communication antenna 27S for short-distance communication.

[0038] As a long-distance communication network, an Internet communication network, a telephone line communication network, and a communication network formed by combining these can be used. In addition, as a short-distance communication network, a Wi-Fi communication network or a Bluetooth communication network can be used.

[0039] Next, the flow of operation information of the hoisting / traversing inverter control unit 15, the cloud server 24, and the information display terminal 25 of the crane equipment is simplified based on the Figure 3 , Figure 4 Please explain. Figure 3 and Figure 4 The structure is substantially the same as that of FIG. 1 , except that the column inverter control unit 18 and the wireless communication unit 22 are directly connected by the communication line 20. Therefore, the following uses Figure 3 Provide explanation.

[0040] Figure 3 In the present invention, the communication unit 25 of the cloud server 24 is different from the management system shown in patent document 1. It is not necessary to go to the factory where the hoisting / transverse inverter device 15 and the longitudinal inverter control unit 18 are installed. The operation information of the crane equipment can be obtained by using the cloud server 24 installed at a remote location away from the factory.

[0041] The cloud server 24 has a function of periodically acquiring the latest operation information of the crane equipment at a predetermined time, updating it, and storing it in a storage unit (not shown). Furthermore, it also has an editing function and can generate graphs, etc. In this way, the cloud server 24 can maintain the latest operation information of the crane equipment.

[0042] The wireless communication unit 22 of the crane equipment communicates with the communication unit 25 of the cloud server 24 via the remote communication network 28. As the remote communication network, the Internet communication network, the telephone line communication network, and a combination of these can be used as described above. In addition, other communication networks capable of remote communication can also be used.

[0043] The information display terminal 27 has two communication functions, one is a long-distance communication network 28, which can use the Internet communication network, telephone line communication network, and a combination of these communication networks, and the other is a short-distance communication network 29, which can use a Wi-Fi communication network or a Bluetooth communication network.

[0044] The short-distance communication network 29 can establish communication by the maintenance worker carrying the information display terminal 26 to the crane equipment. In addition, the short-distance communication network 29 does not incur communication fees, so it is suitable for transmitting a large amount of operation information. In addition, the operation information displayed directly on the information display terminal 26 can be transmitted. As the information display terminal 26, a tablet terminal, a smart phone, a personal computer, etc. can be used.

[0045] As described above, the operation information of the crane equipment is obtained by the hoisting / transverse inverter control unit 15 and the longitudinal inverter control unit 18. The obtained operation information is as follows: Figure 3 Here, the operation information acquired by the longitudinal inverter control unit 18 can be sent to the hoisting / transverse inverter control unit 15 via the wired communication line 20, or can be sent to the wireless communication unit 21 via the wired communication line 23 as shown. Figure 4 The data is directly sent to the wireless communication unit 22 as shown.

[0046] The wireless communication unit 22 transmits the acquired operation information to the cloud server 24 via the remote communication network 28. Here, the operation information is operation information sampled at a relatively long time interval, such as the operation time of the crane equipment, the number of operation times of the crane equipment, and the error information of the crane equipment, and is regularly transmitted to the cloud server 24 at a predetermined time interval. In addition, the information volume per unit time of these operation information is small, and the communication fee of the remote communication network 28 can be suppressed to a low level.

[0047] The cloud server 24 can store the received operation information, and edit and generate screen data and graph data for display based on the operation information. Then, the screen data and graph data generated by the cloud server 24 are sent to the information display terminal 26 via the remote communication network 28 in response to a request from the information display terminal 26 of the maintenance and management operator.

[0048] The information display terminal 26 displays the received screen data and graph data on the display screen of the information display terminal 26 so that the maintenance and management operator can browse them. In addition, for example, the specifications of the crane equipment can be edited using the information display terminal 26, and the edited information can be sent to the cloud server 24 via the remote communication network 28 and stored.

[0049] On the other hand, the instantaneous values ​​of the motor's current value during operation as operation information are information that maintenance and management workers want to know online as needed when performing maintenance and management. Assuming that the instantaneous values ​​of the motor's operation are sent from the crane equipment to the cloud server 24 via the remote communication network 28, and then sent from the cloud server 24 to the information display terminal 26 via the remote communication network 28 as described in Patent Document 1, it is considered to increase the communication frequency between the wireless communication unit 22 and the cloud server 24, or to accumulate the instantaneous values ​​of the operation in the wireless communication unit 21 and send them to the cloud server 24 in a certain amount. However, when using such a method, the amount of information sent in the communication is large, resulting in a problem of reduced timeliness of information and increased communication costs.

[0050] Therefore, a configuration is adopted in which the information display terminal 26 is connected to the wireless communication unit 22 of the crane equipment via a short-distance communication network 29 such as a Wi-Fi communication network or a Bluetooth communication network, and the above-mentioned instantaneous value of the operation is directly transmitted to the information display terminal 26 in response to a request from the information display terminal 26. This can solve the problems of reduced timeliness of information and increased communication costs.

[0051] Here, the selection of the wireless communication unit 22 of the crane equipment connected to the information display terminal 26 via the short-distance communication network 29 may be set at the information display terminal 26 or may be set based on the switching information obtained from the cloud server 24 via the long-distance communication network 28 .

[0052] Thus, according to this embodiment, the operation information of the crane system can be regularly transmitted to the data server by remote communication, and the operation information can be accumulated and updated in the data server. Furthermore, the operation information can be transmitted to the information display terminal 26 in response to a request from the information display terminal 26 by short-range communication and can be browsed as needed.

[0053] As a result, the latest operating information of the crane equipment can be regularly accumulated in the data server, and the operating status of the crane equipment can be monitored at any time, so that remote monitoring can be carried out with high accuracy. Furthermore, as needed, operation information with a large amount of information, such as the instantaneous value of the current value of the motor, can be browsed using a mobile information display terminal, thereby achieving the effect of improving the timeliness of information and reducing communication costs as much as possible.

[0054] The above description is about a method of connecting each crane device to an external information device, but it is also possible to connect multiple crane devices to an external information device at once. When this method is used, the communication cost can be kept low overall. A specific example is described below.

[0055] Figure 5 In, by Figure 2 The crane control unit 30 composed of the hoisting / traverse inverter control device 11 and the longitudinal inverter control device 13 is connected to the information centralized communication unit 32 via a short-distance communication network 31 such as a Wi-Fi communication network or a Bluetooth communication network. Therefore, the operation information of each crane control unit 30 is collected by the information centralized communication unit 32 via the short-distance communication network 31. The information centralized communication unit 32 is arranged, for example, at a position in the factory that does not hinder communication (near the ceiling of the house).

[0056] In addition, the information centralized communication unit 32 is connected to the cloud server 24 via the long-distance communication network 28 as described above. Furthermore, each crane control unit 30 is also connected to the information display terminal 26 via the short-distance communication network 29 as described above.

[0057] The information centralized communication unit 32 transmits the operation information of the crane equipment to the cloud server 24 by adding the individual identification information of each crane control unit 30. As described above, the operation information is the operation information sampled at a relatively long time interval, such as the operation time of the crane equipment, the operation number of the crane equipment, and the error information of the crane equipment, and these information are regularly transmitted to the cloud server 24 at a predetermined time. Then, in the cloud server 24, the operation information can be accumulated and stored for each crane equipment with reference to the identification information, and can be edited.

[0058] In addition, the information display terminal 26 is connected to each crane control unit 30 via the short-distance communication network 29. Then, by specifying the crane control unit 30 on the information display terminal 26 side, it is possible to communicate with the specified crane control unit 30 via the short-distance communication network 29. In this case, as described above, when performing maintenance and management, the operation instantaneous value such as the current value of the motor during operation that the maintenance and management operator wants to know online is sent to the information display terminal 26.

[0059] Above Figure 5 In the illustrated embodiment, the instantaneous operation value such as the current value of the motor during operation which the maintenance operator wants to know online is sent to the information display terminal 26 , but it may also be sent to the information centralized communication unit 32 .

[0060] Figure 6 In addition to the operation information of the crane equipment, the instantaneous operation values ​​such as the current value of the motor during operation, which the maintenance and management operator wants to know online, are also sent to the information centralized communication unit 32. In this state, when a request for sending the instantaneous operation value is generated from the information display terminal 26, the information centralized communication unit 32 sends the requested instantaneous operation value of the crane equipment to the information display terminal 26. In this embodiment, the short-distance communication networks 31 and 29 are also used, so that no communication fee is incurred and the immediacy of the information is not impaired.

[0061] Next, the power supply method of the wireless communication unit 22 in the crane equipment will be described. In the inverter crane equipment, when the operation is not performed, the main power switch provided in the power supply unit of the inverter crane equipment is generally operated by operating the OFF button of the input device to cut off the power supply to the inverter crane equipment.

[0062] However, in this case, the power of the wireless communication unit 22 is also cut off, so the latest operation information may not be transmitted to the cloud server 24 depending on the execution timing of the remote communication network 28 with the cloud server 24 .

[0063] In this embodiment, in order to eliminate this phenomenon, a Figure 7 The structure shown. Figure 7As shown, the crane control unit 30 is connected to the three-phase power supply via the main power switch 33. Thus, the crane control unit 30 is supplied with power from the three-phase power supply 34. The main power switch 33 is controlled by an electromagnetic relay 35, and the electromagnetic relay 35 is operated by operating an input device (start button) 35.

[0064] Therefore, when the input device 35 is turned off, the main power switch is turned off by the electromagnetic relay 35, and the power supply to the crane control unit 30 is cut off. On the other hand, the wireless communication unit 22 is directly powered by the power supply line 37 connecting the three-phase power supply 34 and the wireless communication unit 22, so the communication state is maintained. In this way, the latest operation information of the crane equipment can be sent to the cloud server 24.

[0065] In addition, a structure other than the power supply line 37 may be provided so that the power supply is not cut off by the operation of the input device 36, such as a battery power source, and the wireless communication unit 22 may be powered directly from the battery power source.

[0066] As described above, the latest operation information of the crane equipment can be obtained at any time using the cloud server, and the status of the crane equipment can be monitored at any time, so that the remote status monitoring can be carried out with high accuracy. Furthermore, when monitoring the status of each of a plurality of crane equipment installed in the same place, by providing an information centralized communication unit that communicates with the cloud server, the crane equipment is connected to the information centralized communication unit through a short-range communication network and centralized, so that the communication cost can be reduced as a whole.

[0067] In addition, the present invention is not limited to the above-mentioned embodiments, and includes various modified examples. The above-mentioned embodiments are described in detail to explain the present invention in an easy-to-understand manner, and are not limited to all structures that must be described. In addition, a part of the structure of a certain embodiment can be replaced with the structure of other embodiments, and the structure of other embodiments can be added to the structure of a certain embodiment. For a part of the structure of each embodiment, other structures can also be added, deleted, or replaced.

[0068] Description of Reference Numerals

[0069] 11…Winching / transverse inverter device, 12…Input device, 13…Vertical inverter device, 14…Brake for induction motor, 15…Winching / transverse inverter control unit, 16…Winching inverter, 17…Transverse inverter, 18…Vertical inverter control unit, 19…Vertical inverter, 20…Communication line, 22…Wireless communication unit, 23…Communication line, 24…Cloud server, 25…Communication unit, 26…Information display terminal, 27…Communication unit, 28…Long-distance communication network, 29…Short-distance communication network, 30…Crane control unit, 31…Short-distance communication network, 32…Information centralized communication unit.

Claims

1. A crane device comprising a plurality of drive motors including at least a hoisting motor and a moving motor, a crane control unit for controlling each of the drive motors, and a communication unit connected to the crane control unit, wherein: The communication unit has: A function of periodically transmitting the operation information of the crane equipment to a cloud server via a remote communication network; and A function of transmitting the operating information to the mobile information display terminal in response to a request from the mobile information display terminal via a short-range communication network.

2. The crane device according to claim 1, characterized in that: The remote communication network is any one of an Internet communication network, a telephone line communication network, and a communication network formed by combining the Internet communication network and the telephone line communication network. The short-range communication network is any one of a Wi-Fi communication network and a Bluetooth communication network.

3. The crane device according to claim 2, characterized in that: The communication unit periodically sends the operation information to the cloud server at a predetermined time. The communication unit transmits the instantaneous value of the operation of the driving motor as the operation information to the information display terminal in response to a request from the information display terminal.

4. The crane device according to claim 1, characterized in that: The communication unit is powered directly from a power source.

5. The crane device according to claim 4, characterized in that: The communication unit is powered from a three-phase power supply line serving as a power source for the driving motor, or is powered from a battery power source.

6. A crane control system, characterized in that: include: A crane device including a plurality of drive motors including at least a hoisting motor and a moving motor, a crane control unit for controlling each of the drive motors, and a communication unit connected to the crane control unit; a cloud server connected to the communication unit via a remote communication network and periodically receiving operation information of the crane equipment; and A portable information display terminal is connected to the communication unit via a short-range communication network, and is capable of requesting the operation information and receiving the operation information in accordance with the request.

7. The crane control system according to claim 6, characterized in that: The remote communication network is any one of an Internet communication network, a telephone line communication network, and a communication network formed by combining the Internet communication network and the telephone line communication network. The short-range communication network is any one of a Wi-Fi communication network and a Bluetooth communication network.

8. The crane control system according to claim 7, characterized in that: The communication unit periodically sends the operation information of the crane equipment to the cloud server at a predetermined time. The communication unit transmits the instantaneous value of the operation of the driving motor as the operation information to the information display terminal in response to a request from the information display terminal.

9. The crane control system according to claim 6, characterized in that: The cloud server and the information display terminal are connected via the remote communication network.

10. The crane control system according to claim 9, characterized in that: The remote communication network is any one of an Internet communication network, a telephone line communication network, and a communication network formed by combining the Internet communication network and the telephone line communication network.

11. A crane control system, characterized in that: include: A plurality of crane devices including a plurality of drive motors including at least a hoisting motor and a moving motor, a crane control unit for controlling each of the drive motors, and a communication unit connected to the crane control unit; An information centralized communication unit connected to the communication units of the plurality of crane devices by a first short-distance communication network; a cloud server connected to the information centralized communication unit via a remote communication network and periodically receiving the operation information of the crane equipment; and A portable information display terminal is connected to the communication units of the plurality of crane devices via a second short-distance communication network, and is capable of requesting acquisition of the operation information and receiving the operation information in accordance with the request.

12. The crane control system according to claim 11, characterized in that: The remote communication network is any one of an Internet communication network, a telephone line communication network, and a communication network formed by combining the Internet communication network and the telephone line communication network. The first short-range communication network and the second short-range communication network are any of a Wi-Fi communication network and a Bluetooth communication network.

13. The crane control system according to claim 12, characterized in that: The information centralized communication unit periodically transmits the operation information of the plurality of crane devices to the cloud server at a predetermined time. The information centralized communication unit transmits the instantaneous value of the operation of the driving motor as the operation information to the information display terminal in response to a request from the information display terminal.

14. The crane control system according to claim 11, characterized in that: The cloud server and the information display terminal are connected via the remote communication network.

15. The crane control system according to claim 14, characterized in that: The remote communication network is any one of an Internet communication network, a telephone line communication network, and a communication network formed by combining the Internet communication network and the telephone line communication network.

16. A crane control system, characterized in that: include: A plurality of crane devices including a plurality of drive motors including at least a hoisting motor and a moving motor, a crane control unit for controlling each of the drive motors, and a communication unit connected to the crane control unit; An information centralized communication unit connected to the communication units of the plurality of crane devices by a first short-distance communication network; a cloud server connected to the information centralized communication unit via a remote communication network and periodically receiving the operation information of the crane equipment; and The portable information display terminal is connected to the information centralized communication unit via a second short-range communication network, and is capable of requesting the operation information and receiving the operation information obtained in response to the request.

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