Communication Control System

Abstract

To place a wireless communication device in a state in which communication with the outside via a wireless communication line is permitted and in a suspended state via a low-speed communication line different from a line used by the wireless communication device.SOLUTION: A communication control system 1 includes a wireless communication device 101 that is communicably connected to a wireless communication line 102, a communication control terminal 107 that is communicably connected to a low-speed LPWA communication line 106, and a management system 105 that controls a switching device 103 that is communicatively connected to the LPWA communication line 106 and switches the wireless communication device 101 between a state in which communication with the outside is permitted and a suspended state. The management system 105 controls the switching device 103 in accordance with an instruction from the communication control terminal 107 via the LPWA communication line 106, and switches the wireless communication device 101 to the state in which communication with the outside is permitted and the suspended state.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a communication control system including a wireless communication device that can be wirelessly connected to an external device. [Background technology]

[0002] The use of IoT / ICT is increasing at construction sites due to a labor shortage in the construction industry. At construction sites where much of the work is done outdoors, laying wired communication lines is difficult, so communication using wireless communication is widely used. In order to use wireless communication devices such as mobile phones, smartphones, and tablets that communicate wirelessly, a line contract is required (see, for example, Patent Document 1). Patent Document 1 discloses a line contract that allows a monthly communication fee to be set, and even while the line is in use, if the communication fee exceeds the limit, the line will be blocked. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-260529 Summary of the Invention [Problem to be solved by the invention]

[0004] At construction sites, where construction schedules change constantly due to various factors such as weather, it is not common to allow wireless communication devices to communicate only during desired periods and to disable them during periods when they are not in use, due to the complexity of the work. Therefore, it is common to leave wireless communication devices in a state where communication is always permitted until the construction is completed. However, if wireless communication devices are always allowed to communicate, costs are incurred even during periods when the wireless communication devices are not in use, resulting in increased communication costs. Therefore, there is a need to control the communication state of wireless communication devices in accordance with the usage status of the wireless communication devices.

[0005] The present invention provides a technique that makes it possible to control the communication state of a wireless communication device via a low-speed communication line different from the line used by the wireless communication device. [Means for solving the problem]

[0006] The communication control system of the present invention is a communication control system that includes a wireless communication device that is wirelessly connected to a first communication line and that controls a switching device that switches the wireless communication device between a state in which communication with the outside world via the first communication line is permitted and a state in which communication with the outside world via the first communication line is suspended.The system includes: a low-speed communication device that is communicatively connected to a second communication line different from the first communication line at a communication speed slower than the communication speed of the wireless communication device; and a management device that is communicatively connected to the second communication line and controls the switching device that switches the wireless communication device between a state in which communication with the outside world via the first communication line is permitted and a state in which communication with the outside world via the first communication line is suspended.The management device controls the switching device in accordance with instructions from the low-speed communication device via the second communication line to switch the wireless communication device between a state in which communication with the outside world via the first communication line is permitted and a state in which communication with the outside world via the first communication line is suspended. [Effects of the Invention]

[0007] According to the present invention, it is possible to control the communication state of a wireless communication device via a low-speed communication line different from the line used by the wireless communication device. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram illustrating an overall configuration of a communication control system according to a first embodiment. [Figure 2] 1 is a hardware block diagram of a communication control system according to a first embodiment. [Figure 3] FIG. 2 is a hardware block diagram of a control unit of the communication control terminal. [Figure 4] FIG. 2 is a hardware block diagram of a control unit of the wireless communication device. [Figure 5] FIG. 2 is a diagram illustrating hardware buttons of an operation unit. [Figure 6]FIG. 4 is a diagram showing software buttons displayed on a display unit of the operation unit. [Figure 7] FIG. 2 is a diagram illustrating a line control flow executed by the communication control system of the first embodiment. [Figure 8] FIG. 10 is a diagram showing software buttons displayed on a display unit of an operation unit according to the second embodiment. [Figure 9] FIG. 10 is a diagram illustrating a line control flow executed by the communication control system of the second embodiment. [Figure 10] FIG. 10 is a diagram illustrating the overall configuration of a communication control system according to a third embodiment. [Figure 11] FIG. 10 is a diagram illustrating the overall configuration of a communication control system according to a fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] The embodiments of the present invention will be described in detail with reference to the drawings. In the following embodiments, it goes without saying that the components (including element steps, etc.) are not necessarily essential unless otherwise specified or considered to be obviously essential in principle.

[0010] Example 1 FIG. 1 is a diagram illustrating the overall configuration of a communication control system according to a first embodiment. The communication control system 1 of the first embodiment is a system that controls a switching device 103 that switches a wireless communication device 101 mounted on a construction machine 100 between a state in which communication with the outside (for example, an Internet line NW) via a wireless communication line 102 is permitted and a state in which communication with the outside (for example, an Internet line NW) is suspended. A telecommunications carrier that provides a service for communication with the outside via the wireless communication line 102 provides a service that reduces communication costs by setting the communication to a suspended state. As illustrated in FIG. 1, the communication control system 1 includes a construction machine 100 and a management system 105. The wireless communication device 101 and the outside are connected via the wireless communication line 102 so as to be able to communicate wirelessly. The switching device 103 is disposed between the wireless communication line 102 and the outside, and switches the wireless communication device 101 between a state in which communication with the outside via the wireless communication line 102 is permitted and a state in which communication with the outside (for example, an Internet line NW) is suspended. A control device 104 controls the switching device 103 in accordance with instructions from the management system 105. Furthermore, the communication control terminal 107 of the construction machine 100 and the management system 105 are connected to each other via an LPWA communication line 106 so as to be able to communicate wirelessly. The wireless communication line 102 corresponds to the first communication line of the present invention, and the LPWA communication line 106 corresponds to the second communication line of the present invention. The wireless communication line 102 and the LPWA communication line 106 are different lines. The management system 105 corresponds to the management device of the present invention.

[0011] (Construction Machinery 100) The construction machine 100 is a machine used at a construction site, such as a shovel, a wheel loader, a road machine, a dump truck, etc. The construction machine 100 is provided with various sensors (not shown), and has a function of transmitting the sensor information to a management server via wireless communication as machine operation information, and a function of controlling the construction machine from a remote location using a wireless control device. It is carried out by remote control informationThe construction machine 100 is equipped with a remote control function and a control device for controlling these. The construction machine 100 is equipped with a wireless communication device 101 that is wirelessly connected to a wireless communication line 102, and a communication control terminal 107 that is wirelessly connected to an LPWA communication line 106. The wireless communication device 101 is connected to the control device of the construction machine 100. The communication speed of the communication control terminal 107 is slower than that of the wireless communication device 101. Furthermore, the communication cost of the communication control terminal 107 is lower than that of the wireless communication device 101. The communication control terminal 107 corresponds to the low-speed communication device of the present invention. Note that the communication control terminal 107 may be connected to the LPWA communication line 106 via a wired line so as to be able to communicate.

[0012] The communication control terminal 107 may be an embedded device incorporated in the construction machine 100, or may be a terminal such as a smartphone, tablet, or laptop computer connectable to the construction machine 100. The communication control terminal 107 of the first embodiment is a terminal for setting the wireless communication device 101 to a state in which communication with the outside via the wireless communication line 102 is permitted and a state in which communication is suspended. The communication control terminal 107 is connected to the LPWA communication line 106 so as to be able to communicate wirelessly in accordance with a wireless communication standard called LPWA (Low Power Wide Area). The communication standard of the communication control terminal 107 is not limited to LPWA as long as it enables communication with the outside at the construction site. The communication standard of the communication control terminal 107 may be ZIGBEE (registered trademark), LTE (registered trademark) (Long Term Evolution), Wi-Fi (registered trademark), BLUETOOTH (registered trademark), etc.

[0013] 2, the communication control terminal 107 has an operation unit 401, a control unit 402, a storage unit 403, and a communication unit 404. The operation unit 401 is an interface that accepts operations from a user. The storage unit 403 stores, for example, a communication log of the communication control terminal 107, an OS (Operating System), various programs, various tables, etc. This storage unit 403 is a solid state drive (SSD) device, a hard disk (HDD, Hard Disk Drive) device, etc. The communication unit 404 is a network interface that transmits and receives data to and from the LPWA communication line 106.

[0014] The control unit 402 controls the operation of the operation unit 401, the storage unit 403, and the communication unit 404. FIG. 3 is a hardware block diagram of the control unit 402 of the communication control terminal 107. The control unit 402 includes a processor 501, a communication interface 502 (hereinafter, interface will be abbreviated as I / F), a main memory device 503, an auxiliary memory device 504, an input / output I / F 505, and a bus 506 that communicatively connects the above-mentioned modules. The input / output I / F 505 is connected to the operation unit 401 and the storage unit 403. The processor 501 is a central processing unit that controls the operation of each unit of the communication control terminal 107. The processor 501 is, for example, a central processing unit (CPU), a digital signal processor (DSP), or an application specific integrated circuit (ASIC). The processor 501 deploys programs stored in the auxiliary memory device 504 or the storage unit 403 in a work area of ​​the main memory device 503 so that the programs can be executed. The main memory device 503 stores programs executed by the processor 501, data processed by the processor 501, etc. The main memory device 503 is a flash memory, a RAM (Random Access Memory), a ROM (Read Only Memory), etc. The auxiliary memory device 504 stores a boot program, etc. The auxiliary memory device 504 is a ROM (Read Only Memory), etc.

[0015] The wireless communication device 101 may be an embedded device incorporated into the construction machine 100, or may be a terminal such as a smartphone, tablet, or laptop that can be connected to the construction machine 100. The wireless communication device 101 is connected to the wireless communication line 102 so as to be able to communicate wirelessly in accordance with a mobile communication system such as 4G or 5G. The communication standard of the wireless communication device 101 is not limited to mobile communication systems such as 4G or 5G, as long as it enables wireless communication with the outside at the construction site. However, the communication speed of the wireless communication device 101 is faster than the communication speed of the communication control terminal 107. Furthermore, the communication cost of the wireless communication device 101 is higher than the communication cost of the communication control terminal 107.

[0016] 2, the wireless communication device 101 has an operation unit 405, a control unit 406, a storage unit 407, and a communication unit 408. The operation unit 405 is an interface that accepts operations from a user. The storage unit 407 stores, for example, a communication log of the wireless communication device 101, an OS (Operating System), various programs, various tables, etc. The communication unit 408 is a network interface that transmits and receives data to and from the wireless communication line 102.

[0017] The control unit 406 controls the operations of the operation unit 405, the storage unit 407, and the communication unit 408. Fig. 4 is a hardware block diagram of the control unit 406 of the wireless communication device 101. The control unit 406 has a processor 507, a communication I / F 508, a main storage unit 509, an auxiliary storage unit 510, an input / output I / F 511, and a bus 512 that communicatively connects the above-mentioned modules. The description of the control unit 406 overlaps with the description of the control unit 402, and therefore will not be repeated.

[0018] In the first embodiment, an example was described in which the control unit 402 of the communication control terminal 107 and the control unit 406 of the wireless communication device 101 are provided separately, but a single control unit may also control each module of the communication control terminal 107 and each module of the wireless communication device 101.

[0019] (Switching device 103) The switching device 103 switches the wireless communication device 101 between a state in which communication with the outside via the wireless communication line 102 is permitted and a state in which communication with the outside via the wireless communication line 102 is suspended. The switching device 103 is, for example, a gateway disposed between the wireless communication line 102 and the Internet line NW. The switching device 103 is set to permit communication between the wireless communication device 101 and the outside via the wireless communication line 102, or to suspend communication between the wireless communication device 101 and the outside via the wireless communication line 102. When a user presses an open button 601 of the operation unit 401 (described later), the switching device 103 is set to permit communication between the wireless communication device 101 and the outside via the wireless communication line 102. When a user presses a suspend button 602 of the operation unit 401, the switching device 103 is set to suspend communication between the wireless communication device 101 and the outside via the wireless communication line 102.

[0020] (control device 104) The control device 104 controls the switching device 103 in accordance with instructions from the management system 105. The control device 104 is a device prepared by a telecommunications carrier that owns a wireless communication line 102 such as a base station or a cable connecting base stations. In accordance with instructions from the management system 105, the control device 104 sets the switching device 103 as described above, so that communication between the wireless communication device 101 and the outside via the wireless communication line 102 is permitted or suspended.

[0021] (Management System 105) The management system 105 is communicatively connected to the LPWA communication line 106. The management system 105 indirectly controls the switching device 103 via the control device 104. The management system 105 controls the switching device 103 in accordance with instructions from the communication control terminal 107 via the LPWA communication line 106 to switch the wireless communication device 101 between a state in which communication with the outside is permitted and a state in which communication with the outside is suspended. The management system 105 receives data related to an "open" state and data related to a "suspended" state (described later) from the communication control terminal 107 via the LPWA communication line 106. When the management system 105 receives the data related to an "open" state, the management system 105 instructs the control device 104 to permit communication between the wireless communication device 101 and the outside via the wireless communication line 102. When the management system 105 receives the data related to a "suspended" state, the management system 105 instructs the control device 104 to suspend communication between the wireless communication device 101 and the outside via the wireless communication line 102.

[0022] (Operation unit 401 of communication control terminal 107) 5 is a diagram showing hardware buttons on the operation unit 401 of the communication control terminal 107. The operation unit 401 of the communication control terminal 107 has an open button 601 and a pause button 602. The open button 601 and the pause button 602 are both hardware buttons that are physically pressed down by a user. When the user presses the open button 601, the communication unit 404 transmits data related to "open" to the management system 105 via the LPWA communication line 106. When the user presses the pause button 602, the communication unit 404 transmits data related to "pause" to the management system 105 via the LPWA communication line 106.

[0023] Although the open button 601 and the pause button 602 in the first embodiment are hardware buttons, they may be software buttons. Fig. 6 is a diagram showing software buttons displayed on the display unit 610 of the operation unit 401. As shown in Fig. 6, the operation unit 401 of the communication control terminal 107 has a display unit 610 that displays information and a touch panel 620 that detects a touch operation on the display unit 610. The display unit 610 displays an open button 603 and a pause button 604. The open button 603 and the pause button 604 are both software buttons, and the touch panel 620 detects a touch operation on the open button 603 and a touch operation on the pause button 604. When the touch panel 620 detects a touch operation on the open button 603, the communication unit 404 transmits data related to "open" to the management system 105 via the LPWA communication line 106. Furthermore, when the touch panel 620 detects a touch operation on the pause button 604, the communication unit 404 transmits data relating to “pause” to the management system 105 via the LPWA communication line 106. The communication control terminal 107 can use a very slow communication speed because it transmits only data related to suspension and activation.

[0024] (Line Control Flow) Fig. 7 is a diagram showing a line control flow executed by the communication control system. A control method for setting the communication state of the wireless communication device 101 will be described with reference to Fig. 7. The processor 501 of the control unit 402 executes a program loaded in the main memory device 503, and the following processes of S701, S702, S703, and S706 are executed by the control unit 402. The control unit 402 determines whether the open button 601 or the pause button 602 of the operation unit 401 has been pressed (S701). If it is determined that the open button 601 or the pause button 602 of the operation unit 401 has been pressed (S701: Yes), the control unit 402 identifies the type of button that was pressed (S702).

[0025] If the type of the pressed button is the open button 601 (S702: open button), the control unit 402 transmits data relating to "open" to the management system 105 via the LPWA communication line 106 (S703). The management system 105, which has received the data relating to "open", instructs the control device 104 to open the wireless communication line 102 (S704). The control device 104, which has received the instruction to open, sets the switching device 103 so that communication between the wireless communication device 101 and the outside via the wireless communication line 102 is permitted (S705).

[0026] Furthermore, if the type of the pressed button is the pause button 602 (S702: pause button), the control unit 402 transmits data relating to "pause" to the management system 105 via the LPWA communication line 106 (S706). The management system 105, which has received the data relating to "pause", instructs the control device 104 to pause the wireless communication line 102 (S707). The control device 104, which has received the pause instruction, sets the switching device 103 so that communication between the wireless communication device 101 and the outside via the wireless communication line 102 is paused (S708).

[0027] (Effects of Example 1) In the communication control system 1 of the first embodiment, the communication control terminal 107 can transmit data related to "open" and data related to "pause" via an LPWA communication line 106 that is different from the wireless communication line 102 used by the wireless communication device 101. This makes it possible to control the communication state of the wireless communication device 101 in accordance with the usage status of the wireless communication device 101, for example, by setting the wireless communication device 101 to a state in which communication with the outside is permitted when the wireless communication device 101 is in use, and setting the wireless communication device 101 to a state in which communication with the outside is paused when the wireless communication device 101 is not in use.

[0028] Furthermore, the communication control terminal 107 can switch the wireless communication device 101 between a state in which communication with the outside via the wireless communication line 102 is permitted and a state in which communication with the outside is suspended via the low-speed, low-cost LPWA communication line 106. This makes it possible to keep the communication cost of the wireless communication device 101 low by putting the wireless communication device 101 in a state in which communication with the outside is suspended when the wireless communication device 101 is not in use. Note that the communication cost of the communication control terminal 107 is lower than the communication cost of the wireless communication device 101, so even when the communication control terminal 107 is used, the total communication cost can be kept low.

[0029] Furthermore, by providing a communication control terminal 107 capable of transmitting data related to "open" and data related to "pause," the site supervisor or the operator of the construction machine 100 can switch the wireless communication device 101 between a state in which communication with the outside via the wireless communication line 102 is permitted and a state in which communication is paused, with a simple operation of the communication control terminal 107. Therefore, at a construction site where the progress status changes from moment to moment due to weather, etc., the complicated operation of putting the wireless communication device 101 into a paused state when the wireless communication device 101 is not in use and putting the wireless communication device 101 into an open state when the wireless communication device 101 is in use can be easily performed by operating the communication control terminal 107.

[0030] The above-described open button 601 and pause button 602 are dedicated hardware buttons, so that a site supervisor or an operator of the construction machine 100 can switch the wireless communication device 101 between a state in which communication with the outside is permitted and a paused state by simply pressing the button. This allows the complicated operation of putting the wireless communication device 101 into a paused state when the wireless communication device 101 is not in use and putting the wireless communication device 101 into an open state when the wireless communication device 101 is in use to be easily performed by operating the dedicated hardware buttons.

[0031] Furthermore, if the open button 601 and the pause button 602 are software buttons, the wireless communication device 101 can be switched between a state in which communication with the outside via the wireless communication line 102 is permitted and a state in which communication is paused by touching the software buttons on the display unit without the need for dedicated hardware.

[0032] By installing the open button 601 or the pause button 602 on the construction machine 100, the operator of the construction machine 100 can operate the open button 601 or the pause button 602 inside the construction machine 100. The operator of the construction machine 100 can operate the open button 601 or the pause button 602 on the spot, before or after using the construction machine 100.

[0033] By connecting the communication control terminal 107 to the LPWA communication line 106 so that wireless communication is possible, the wireless communication device 101 can be switched between a state in which communication with the outside is permitted and a state in which communication is suspended in places where it is difficult to lay wires, such as construction sites.

[0034] The control device 104 controls the switching device 103 in response to instructions from the management system 105, so that by simply operating the open button 601 or the pause button 602, the wireless communication device 101 can be automatically switched between a state in which communication with the outside is permitted and a state in which communication is paused.

[0035] Furthermore, by using the LPWA communication line 106, which has low communication costs, the communication costs of the communication control terminal 107 can be reduced.

[0036] <Example 2> In the first embodiment, the activation button 601 and the pause button 602 provided on the operation unit 401 have been described. The operation unit 401 of the second embodiment has a button for changing the rate plan of the wireless communication device 101 in addition to the activation button 603 and the pause button 604. Fig. 8 is a diagram showing software buttons displayed on the display unit 610 of the operation unit 401 of the second embodiment.

[0037] As shown in FIG. 8 , the operation unit 401 of the communication control terminal 107 of the second embodiment has an activation button 603, a pause button 604, a plan A button 605, and a plan B button 606. The activation button 603, the pause button 604, the plan A button 605, and the plan B button 606 may be hardware buttons or software buttons. The activation button 603 and the pause button 604 have the same functions as those of the first embodiment, and therefore a description thereof will be omitted. The plan A button 605 and the plan B button 606 are buttons for subscribing the wireless communication device 101 to a rate plan provided by a telecommunications carrier. The plan A button 605 is a button for subscribing the wireless communication device 101 to a rate plan A provided by a telecommunications carrier (e.g., a rate plan A with unlimited data usage). The plan B button 606 is a button for subscribing the wireless communication device 101 to a rate plan B provided by a telecommunications carrier (e.g., a plan B that allows access to cloud services).

[0038] When the user presses the Plan A button 605, the communication unit 404 transmits data related to "Plan A" to the management system 105 via the LPWA communication line 106. Also, when the user presses the Plan B button 606, the communication unit 404 transmits data related to "Plan B" to the management system 105 via the LPWA communication line 106.

[0039] (Line Control Flow) FIG. 9 is a diagram showing a line control flow executed by the communication control system of the second embodiment. The processing when the Activate button 603 and the Pause button 604 are pressed is the same as that of the first embodiment, and therefore a description thereof will be omitted. When the Plan A button 605 or the Plan B button 606 is pressed, the control unit 402 transmits data related to "Plan A" or data related to "Plan B" to the management system 105 via the LPWA communication line 106 (S709). The management system 105, which has received the data related to "Plan A" or "Plan B," instructs the control device 104 to subscribe to a service (Plan A or Plan B) provided by a telecommunications carrier (S710). The control device 104, which has received the instruction, applies to the telecommunications carrier to subscribe the wireless communication device 101 to the rate plan of Plan A or Plan B (S711). This enables the wireless communication device 101 to receive the service (Plan A or Plan B) provided by the telecommunications carrier.

[0040] (Effects of Example 2) In the communication control system 1 of the second embodiment, the communication control terminal 107 can add or change the services provided to the wireless communication device 101 by the telecommunications carrier via the LPWA communication line 106 that is different from the wireless communication line 102 used by the wireless communication device 101. Other effects are the same as those of the first embodiment.

[0041] Example 3 In the first embodiment, an example has been described in which the communication control terminal 107 is mounted on the construction machine 100. In the third embodiment, as shown in Fig. 10 , the communication control terminal 107 is installed in an office 110 where a manager such as a site supervisor of a construction site where the construction machine 100 is located is located. That is, the communication control system 1B of the third embodiment includes the construction machine 100, the management system 105, and the communication control terminal 107 installed in the office 110. The construction machine 100 of the third embodiment is not equipped with the communication control terminal 107, but the communication control terminal 107 is installed in the office 110. In accordance with the operation of the open button 601 or the pause button 602 of the communication control terminal 107 installed in the office 110, the wireless communication device 101 can be switched between a state in which communication with the outside via the wireless communication line 102 is permitted and a state in which communication is paused.

[0042] (Effects of Example 3) In the communication control system 1B of the third embodiment, the communication control terminal 107 is installed in the office 110, and therefore a manager such as a site supervisor in the office 110 switches the wireless communication device 101 between a state in which communication with the outside via the wireless communication line 102 is permitted and a state in which communication is suspended via the low-cost, low-speed LPWA communication line 106. Other effects are the same as those of the first embodiment.

[0043] Example 4 The fourth embodiment is a system for collectively switching a plurality of wireless communication devices 101 mounted on a plurality of construction machines 100 between a state in which communication with the outside is permitted and a state in which communication with the outside is suspended by operating a communication control terminal 107 at a construction site where a plurality of construction machines 100 are operating. At construction sites, a plurality of construction machines 100 are often working. As shown in FIG. 11 , a communication control system 1C of the fourth embodiment includes a plurality of construction machines 100, a management system 105, and a communication control terminal 107 installed in an office 110. Each of the plurality of construction machines 100 is equipped with a wireless communication device 101 that is wirelessly connected to a wireless communication line 102. The construction machines 100 of the fourth embodiment are not equipped with a communication control terminal 107, but the communication control terminal 107 is installed in the office 110. An open button 601 or a pause button 602 of the communication control terminal 107 installed in the office 110 switches a plurality of wireless communication devices 101 mounted on each of the construction machines 100 between a state in which communication with the outside is permitted and a state in which communication with the outside is suspended.

[0044] (Effects of Example 4) In the communication control system 1C of the fourth embodiment, a communication control terminal 107 can be used to collectively switch a plurality of wireless communication devices 101 mounted on a plurality of construction machines 100 at a construction site between a state in which communication with the outside via the wireless communication line 102 is permitted and a state in which communication is suspended. Other effects are the same as those of the first embodiment.

[0045] It should be noted that the present invention is not limited to the above-described embodiment, and includes various modifications. The above-described embodiment has been described in detail to clearly explain the present invention, and the present invention is not necessarily limited to an embodiment having all of the described configurations.

[0046] For example, in the first embodiment, the wireless communication device 101 is connected to the control device of the construction machine 100, but it may be an independent device that is not connected to the control device. Also, in the third and fourth embodiments, the communication control terminal 107 is installed in the office 110, but the communication control terminal 107 may be installed outside the office 110 if it is at a construction site.

[0047] It is also possible to replace part of the configuration of one embodiment with the configuration of another embodiment, or to add the configuration of another embodiment to the configuration of one embodiment, or to add, delete, or replace part of the configuration of each embodiment with the configuration of another embodiment. [Explanation of symbols]

[0048] 1, 1B, 1C: Communication control system 100: Construction machine 101: Wireless communication device 102: Wireless communication line 103: Switching device 104: Control device 105: Management system 106: LPWA communication line 107: Communication control terminal (low-speed communication device) 110: Office 401: Operation unit 402: Control unit 404: Communication unit 601, 603: Open button 602, 604: Pause button 605: Plan A button 606: Plan B button 610: Display unit 620: Touch panel

Claims

1. Installed on construction machinery, A communication control system comprising: a wireless communication device connected to a control device of the construction machine so as to be able to wirelessly communicate with a first communication line, and which communicates operation information or remote control information of the construction machine with an external device; and a switching device which switches the wireless communication device between a state in which communication with the external device via the first communication line is permitted and a state in which communication is suspended, a management device communicably connected to a second communication line different from the first communication line at a communication speed slower than the communication speed of the wireless communication device; a low-speed communication device that outputs an instruction to the management device via the second communication line to switch the switching device between a state in which communication with the outside via the first communication line is permitted and a state in which communication with the outside via the first communication line is suspended; Equipped with the low-speed communication device has hardware buttons including an open button for outputting an instruction to the management device to switch the wireless communication device to a state in which communication with the outside via the first communication line is permitted, and a pause button for outputting an instruction to switch the wireless communication device to a paused state, A communication control system comprising:

2. Installed on construction machinery, A communication control system comprising: a wireless communication device connected to a control device of the construction machine so as to be able to wirelessly communicate with a first communication line, and which communicates operation information or remote control information of the construction machine with an external device; and a switching device which switches the wireless communication device between a state in which communication with the external device via the first communication line is permitted and a state in which communication is suspended, a management device communicably connected to a second communication line different from the first communication line at a communication speed slower than the communication speed of the wireless communication device; a low-speed communication device that outputs an instruction to the management device via the second communication line to switch the switching device between a state in which communication with the outside via the first communication line is permitted and a state in which communication with the outside via the first communication line is suspended; Equipped with The low-speed communication device has a display unit that displays software buttons, including an open button for outputting an instruction to the management device to switch the wireless communication device to a state in which communication with the outside via the first communication line is permitted, and a pause button for outputting an instruction to switch the wireless communication device to a paused state, and a touch panel that detects a touch operation on the display unit. A communication control system comprising:

3. Installed on construction machinery, A communication control system comprising: a wireless communication device connected to a control device of the construction machine so as to be able to wirelessly communicate with a first communication line, and which communicates operation information or remote control information of the construction machine with an external device; and a switching device which switches the wireless communication device between a state in which communication with the external device via the first communication line is permitted and a state in which communication is suspended, a management device communicably connected to a second communication line different from the first communication line at a communication speed slower than the communication speed of the wireless communication device; a low-speed communication device that outputs an instruction to the management device via the second communication line to switch the switching device between a state in which communication with the outside via the first communication line is permitted and a state in which communication with the outside via the first communication line is suspended; Equipped with the low-speed communication device transmits information for changing the rate plan of the wireless communication device via the second communication line, and the management device changes the rate plan of the wireless communication device in accordance with the information from the low-speed communication device via the second communication line. A communication control system comprising:

4. 4. The communication control system according to claim 1, wherein the low-speed communication device is mounted on a construction machine.

5. 4. The communication control system according to claim 1, wherein the low-speed communication device is installed in an office where a manager is present.

6. 4. The communication control system according to claim 1, wherein the low-speed communication device is connected to the second communication line so as to be able to communicate wirelessly with the low-speed communication device.

7. a plurality of construction machines each equipped with a wireless communication device connected to the first communication line so as to be capable of wireless communication; The communication control system according to any one of claims 1 to 3, characterized in that the management device controls the switching device in accordance with instructions from the low-speed communication device installed in an office where an administrator is located, and collectively switches each of the wireless communication devices installed in the plurality of construction machines between a state in which communication with the outside via the first communication line is permitted and a state in which communication is suspended.

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