JP2023115813A - Operation restriction determination system, operation restriction determination method, and operation restriction determination program - Google Patents

Abstract

To determine restriction contents on an operation of a work machine based on a type of an attachment provided on the work machine and a status of the work machine.SOLUTION: Restriction information Ir is set in a restriction information setting section 31. The restriction information Ir indicates a relation between work situation information Ib which is information regarding a situation of the work machine 10 and restriction contents on an operation of the work machine 10, for each of a plurality of types of attachments A that can be provided on the work machine 10. A determination section 75 determines restriction contents on an operation of the current work machine 10 based on attachment information Ia acquired by an attachment information acquisition section 22, the work situation information Ib acquired by a work situation information acquisition section 37, and the restriction information Ir.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to an operation limitation determination system, an operation limitation determination method, and an operation limitation determination program for determining the content of limitations on the operation of a work machine.

For example, Patent Literature 1 describes a technique for limiting the operation of a work machine based on position information.

JP 2006-342616 A

In the technique described in the document, regardless of the type of attachment, the operation of the work machine may be restricted if the work machine is arranged at a predetermined position. A similar problem also arises when the operation of the work machine is restricted based on conditions other than the position of the work machine, regardless of the type of attachment.

Therefore, the present invention provides an operation limitation determination system, an operation limitation determination method, and a system capable of determining the content of limitations on the operation of a work machine based on the type of attachment provided on the work machine and the state of the work machine. and to provide an operation limitation determination program.

The operation restriction determination system includes a restriction information setting section, an attachment information acquisition section, a work situation information acquisition section, and a determination section. The restriction information setting unit stores, for each of a plurality of types of attachments that can be provided on the work machine, a relationship between work status information, which is information relating to the status of the work machine, and restrictions on the operation of the work machine. Restriction information to indicate is set. The attachment information acquisition unit acquires attachment information including information on the type of the current attachment, which is the attachment provided on the working machine. The work situation information acquisition unit acquires the work situation information. Based on the attachment information acquired by the attachment information acquisition unit, the work situation information acquired by the work situation information acquisition unit, and the restriction information, the determination unit determines the current status of the work machine. determine the limits of operation;

The operation limitation determination method includes a limitation information setting step, an attachment information acquisition step, a work situation information acquisition step, and a determination step. The restriction information setting step indicates the relationship between work status information, which is information relating to the status of the work machine, and restrictions on the operation of the work machine, for each of a plurality of types of attachments that can be provided on the work machine. Set restriction information. The attachment information acquisition step acquires attachment information including information on the type of the current attachment, which is the attachment provided on the work machine. The work situation information acquisition step acquires the work situation information. The determination step determines the current status of the work machine based on the attachment information acquired in the attachment information acquisition step, the work situation information acquired in the work situation information acquisition step, and the restriction information. determine the limits of operation;

The operation restriction determination program causes the computer to execute a restriction information setting step, an attachment information acquisition step, a work status information acquisition step, and a determination step. The restriction information setting step indicates the relationship between work status information, which is information relating to the status of the work machine, and restrictions on the operation of the work machine, for each of a plurality of types of attachments that can be provided on the work machine. Set restriction information. The attachment information acquisition step acquires attachment information including information on the type of the current attachment, which is the attachment provided on the work machine. The work situation information acquisition step acquires the work situation information. The determination step determines the current status of the work machine based on the attachment information acquired in the attachment information acquisition step, the work situation information acquired in the work situation information acquisition step, and the restriction information. determine the limits of operation;

Based on the types of attachments installed on the work machine and the status of the work machine, the contents of the work machine's movement limits are determined by the above-mentioned operation limit determination system, operation limit determination method, and operation limit determination program. can do.

1 is a side view of a working machine 10 of the operation restriction determination system 1. FIG. 2 is a block diagram of the operation limitation determination system 1 shown in FIG. 1; FIG. FIG. 3 is a diagram showing an example of restriction information Ir when work status information Ib shown in FIG. 2 is worker information; 3 is a diagram showing an example of restriction information Ir when work status information Ib shown in FIG. 2 is information on the position of work machine 10. FIG. FIG. 3 is a flow chart showing the operation of the machine-side controller 60 shown in FIG. 2; FIG. 3 is a flow chart showing the operation of the server-side controller 70 shown in FIG. 2;

The operation limitation determination system 1 will be described with reference to FIGS. 1 to 6. FIG.

The operation limitation determination system 1 is a system that makes a determination regarding the limitation of the operation of the work machine 10 shown in FIG. 1 . The operation limitation determination system 1 may limit the operation of the work machine 10 based on the determination regarding the limitation of the operation of the work machine 10 . The operation limitation determination system 1 includes the working machine 10, the limitation information setting unit 31 shown in FIG. ), a security processing unit 80 , and a notification unit 91 .

The work machine 10 is a machine that performs work using the attachment 12 shown in FIG. 1, and is, for example, a construction machine that performs construction work, such as a shovel. The working machine 10 may be configured to be automatically operable, may be operated by a worker (operator, operator) in a cab 11b1 (described later), or may be remotely operated. good too. The work machine 10 includes a machine body 11, an attachment 12, an actuator 13, an engine 14 shown in FIG.

The machine main body 11 is the main body of the working machine 10, as shown in FIG. The machine body 11 includes a lower travel body 11a and an upper revolving body 11b. The lower traveling body 11a allows the working machine 10 to travel. The undercarriage 11a may include crawlers or wheels. The upper revolving body 11b is rotatably mounted on the lower traveling body 11a. The upper revolving body 11b has an operator's cab 11b1. The driver's cab 11b1 is a portion where the worker can operate the work machine 10. As shown in FIG.

The attachment 12 is a part that performs work, and includes, for example, a boom 12a, an arm 12b, and a tip attachment 12c. The boom 12a is attached to the upper revolving body 11b so as to be able to rise and fall (rotatable in the vertical direction). Arm 12b is rotatably attached to boom 12a. The tip attachment 12c is provided at the tip of the attachment 12 and rotatably attached to the arm 12b. The tip attachment 12c may be, for example, a bucket for scooping or excavating the work object, a device for pinching the work object (grapple, nibbler, etc.), or a device for crushing the work object (breaker, etc.). good.

Actuator 13 operates work machine 10 . For example, the actuator 13 includes a travel motor 13a, a turning motor 13b, a boom cylinder 13c, an arm cylinder 13d, and a tip attachment cylinder 13e. The traveling motor 13a causes the lower traveling body 11a to travel, and drives, for example, a crawler. The travel motor 13a may be, for example, a hydraulic motor or an electric motor (the same applies to the turning motor 13b). The turning motor 13b turns the upper turning body 11b with respect to the lower traveling body 11a. The boom cylinder 13c raises and lowers the boom 12a with respect to the upper swing body 11b. The boom cylinder 13c is, for example, a (hydraulic) telescopic cylinder (hydraulic cylinder) driven by hydraulic pressure (the same applies to the arm cylinder 13d and the tip attachment cylinder 13e). The arm cylinder 13d rotates the arm 12b with respect to the boom 12a. The tip attachment cylinder 13e rotates the tip attachment 12c with respect to the arm 12b. If the tip attachment 12c itself is drivable, for example, as in an object clamping device, the actuator 13 may include a cylinder or motor (not shown) for driving the tip attachment 12c.

The engine 14 (see FIG. 2) is the driving source of the work machine 10 . For example, engine 14 may drive a pump (not shown) and may drive a generator (not shown). The “pump” supplies hydraulic fluid to the hydraulic actuator 13 . The 'generator' supplies power to the motorized (electrically driven) actuator 13 .

The operation unit 15 (see FIG. 2) is operated by a worker (operator). The operation unit 15 is for operating the work machine 10 and for operating the actuator 13 . The operation unit 15 may be provided, for example, in the driver's cab 11b1. The operation unit 15 may include, for example, a lever or pedals. The operation unit 15 may be one (hydraulic type) that outputs a pilot pressure (hydraulic pressure, operation pressure) according to the amount of operation. The operation unit 15 may be one (electric type) that outputs an electric signal corresponding to the amount of operation. When work machine 10 is remotely controlled, operation unit 15 is provided in a remote control unit (not shown) outside work machine 10 . The operation unit 15 may be an information terminal (tablet, personal computer, etc.) for operating the work machine 10 .

A drive control unit 16 (see FIG. 2) controls the operation of the actuator 13 . For example, the drive control unit 16 controls the operations of the travel motor 13a, swing motor 13b, boom cylinder 13c, arm cylinder 13d, tip attachment cylinder 13e, and the like. The drive control unit 16 may include, for example, a hydraulic circuit or an electric circuit.

The machine information acquisition unit 17 (see FIG. 2) acquires information about the work machine 10 . As shown in FIG. 2, the machine information acquisition section 17 includes, for example, an engine information acquisition section 17a and an operation information acquisition section 17b. The information acquired by the machine information acquisition unit 17 does not include attachment information Ia, which will be described later. The engine information acquisition unit 17a acquires information about the engine 14. FIG. For example, the engine information acquisition unit 17a may acquire information as to whether or not the engine 14 has started (whether or not the working machine 10 (see FIG. 1) is in an operable state). For example, the engine information acquisition unit 17a may acquire information such as the number of rotations of the engine 14 . The operation information acquisition unit 17b acquires operation information for operating the actuator 13 (the work machine 10 (see FIG. 1)). The operation information acquisition unit 17 b acquires information on operations performed by the operation unit 15 . For example, when the operation unit 15 is of a hydraulic type, the operation information acquisition unit 17b detects pilot pressure output by the operation unit 15 . For example, when the operation unit 15 is of an electric type, the operation information acquisition unit 17b detects an electric signal output by the operation unit 15. FIG. In this case, the operation information acquisition section 17b may be a part of the machine controller 60. FIG.

The attachment information setting part 21 is a part in which attachment information Ia (for example, specification information) is set. In FIG. 2, the "attachment" of the attachment information setting unit 21 is described as "ATT" (the same applies to the attachment information acquisition unit 22). The attachment information Ia is information about the attachment 12 (referred to as "current attachment Ac") currently provided to the work machine 10 shown in FIG. Hereinafter, unless otherwise specified, "attachment 12" means the current attachment Ac. The attachment information Ia (see FIG. 2) includes information on the type of the attachment 12 (details will be described later). For example, the attachment information setting unit 21 (see FIG. 2) is attached (more specifically, fixed) to the attachment 12 . For example, the attachment information setting section 21 may be attached to the tip attachment 12c. For example, the attachment information setting unit 21 may be attached to the boom 12a or the arm 12b. For example, the attachment information setting unit 21 includes a storage medium that stores attachment information Ia (see FIG. 2).

As shown in FIG. 2, the attachment information setting unit 21 transmits the attachment information Ia to the attachment information acquisition unit 22 (details of the transmission method will be described later). The timing and frequency of transmission of the attachment information Ia by the attachment information setting unit 21 can be set variously. For example, the timing of this transmission may be when the engine 14 is started, or when work by the work machine 10 (see FIG. 1) is started (when the actuator 13 is first operated after the engine 14 is started). The timing of this transmission may be during work by the work machine 10 (while the actuator 13 is operating). This transmission may be performed only once at a predetermined time (for example, when the engine 14 is started). This transmission may be performed multiple times (the attachment information Ia may be retransmitted), or may be performed periodically, for example.

(Specific example of attachment information Ia)
The attachment information Ia includes information on the type of the attachment 12 (current attachment Ac) shown in FIG. Attachment information Ia (see FIG. 2) may include information other than the type of attachment 12 . The attachment information Ia may include information on the tip attachment 12c, and may include information on the attachment 12 (specifically, at least one of the boom 12a and the arm 12b) other than the tip attachment 12c.

[Example A] The “type” of the attachment 12 included in the attachment information Ia (see FIG. 2) can be set based on various viewpoints (classifications). [Example A1] The attachment information Ia may include information on classification (so to speak, higher classification) according to the purpose and shape of the attachment 12 . For example, attachment information Ia may include types of information such as nibblers, breakers, and buckets. [Example A2] The attachment information Ia may include information on the product name and model number of the attachment 12 (so to speak, lower classification). [Example A3] The attachment information Ia may include information for identifying an individual of the attachment 12 (individual information, ID (identification)). The individual information is information assigned uniquely to each of the multiple types of attachments A (for each individual). Individual information may be included in the “type” of the attachment 12 . [Example A4] The attachment information Ia may include information on the manufacturer (manufacturing company) of the attachment 12 (type information classified by manufacturer). [Example A5] The attachment information Ia may include information (types of information classified by user) of users of the attachment 12 (construction companies, leasing companies, etc.). [Example A6] The attachment information Ia may include information on the dimensions of the attachment 12 (type information classified by dimensions). [Example A7] The attachment information Ia may include information on the mass of the attachment 12 (type information classified by mass).

[Example B] The attachment information Ia (see FIG. 2) may include information other than the type of the attachment 12 . [Example B1] The attachment information Ia may include the contents of restrictions on the operation of the attachment 12 . In this case, the attachment information Ia may be included in the restriction information Ir (see FIG. 2) (described later). [Example B1a] For example, the attachment information Ia may include information on at least one of the ranges of the operating speed and load in which the attachment 12 can be used (for example, it can be used without restrictions (the same applies to “usable” below)). good. Specifically, for example, when the attachment 12 is operated by a hydraulic actuator 13, the attachment information Ia may include information on at least one of the flow rate and pressure range of hydraulic oil supplied to the actuator 13. When the attachment 12 is operated by an electric actuator 13, the attachment information Ia may include information on the range of power supplied to the actuator 13, and the like. The attachment information Ia may include information on the range of operation amount information for operating the attachment 12 (pilot pressure or electric signal output by the operation unit 15 (see FIG. 2)). [Example B1b] The attachment information Ia may include information on positions where the attachment 12 is available. [Example B1c] The attachment information Ia may include information on the time when the attachment 12 can be used. [Example B1d] The attachment information Ia may include information on the operating time during which the attachment 12 can be used.

The attachment information acquisition unit 22 (see FIG. 2) acquires attachment information Ia (see FIG. 2). For example, the attachment information acquisition unit 22 may be provided (mounted) in the machine main body 11, may be provided in the upper revolving body 11b, or may be provided in the operator's cab 11b1. For example, the attachment information acquisition unit 22 may be provided in the attachment 12 or may be provided outside the work machine 10 . It should be noted that the fact that they can be arranged at various positions is the same for other components (limitation information setting unit 31, controller 50, etc. shown in FIG. 2).

The attachment information acquisition unit 22 acquires the attachment information Ia shown in FIG. 2 from the attachment information setting unit 21 . In this case, transmission/reception (communication) of information between the attachment information acquisition unit 22 and the attachment information setting unit 21 may be wired communication or wireless communication (non-contact). When this communication is wireless communication, for example, the attachment information setting unit 21 is a child device, and the attachment information acquisition unit 22 is a parent device. When this communication is wireless communication, it may be communication by Wi-Fi, communication by Bluetooth (registered trademark), or communication by LPWA (Low Power Wide Area). The fact that communication may be wireless or wired is the same for communication of other information.

Note that the attachment information acquisition unit 22 does not have to acquire the attachment information Ia from the attachment information setting unit 21 . For example, the attachment information acquisition unit 22 may acquire the attachment information Ia by manual input by the operator. In this case, the attachment information Ia may not be information set in the attachment information setting section 21 (the attachment information setting section 21 may not be provided).

The restriction information setting section 31 is a part in which restriction information Ir is set. The restriction information Ir is information indicating the relationship between the work status information Ib (described later) and restriction details (described later) for each of a plurality of types of attachments A that can be provided on the work machine 10 shown in FIG. 3 and 4). The "plural types of attachments A that can be provided on the working machine 10" include the current attachment Ac (attachment 12).

This restriction information setting section 31 (see FIG. 2) can be provided at various positions. For example, the restriction information setting unit 31 shown in FIG. 2 may be provided in the operator information setting unit 41 described later, or may be provided in the controller 50 . The restriction information setting section 31 may be provided in the attachment information setting section 21 . Further, the restriction information Ir set in the restriction information setting unit 31 may be set in a plurality of places (for example, the worker information setting unit 41 for each of a plurality of workers), or may be set in one place (for example, one controller 50).

The restriction information acquisition unit 33 is a part that acquires the restriction information Ir. The restriction information acquisition unit 33 is, for example, the worker information acquisition unit 42 described later.

The work situation information setting section 35 is a part in which work situation information Ib (described later) is set. The work status information Ib is information different from the attachment information Ia.

The work status information acquisition unit 37 acquires work status information Ib. The work status information Ib is information relating to the work status of the work machine 10 (see FIG. 1; the same applies to the work machine 10 below). For example, the work status information Ib may include information on the worker, information on the position of the work machine 10, and information on time. The work status information acquisition section 37 may be the worker information acquisition section 42 described later, the position restriction information setting section 45 , or the time restriction information setting section 47 . For example, the work status information Ib may include information as to whether or not the identity verification information has been acquired by the identity verification information acquisition unit 43 (described later). In this case, the work status information acquisition unit 37 may be the personal identification information acquisition unit 43 . For example, the work status information Ib may include information on the content of the work performed by the work machine 10, may include information on the operation (operation) pattern of the work machine 10, and may include information on the length of work time of the work machine 10. Information and the like may be included.

These restriction information setting unit 31, restriction information acquisition unit 33, work situation information setting unit 35, and work situation information acquisition unit 37 can be provided (or not provided) in various ways.

(When restricting by worker)
A case will be described where the operation restriction determination system 1 restricts the operation of the work machine 10 based on the information of the worker (an example of the work situation information Ib). In this case, for example, the operation restriction determination system 1 includes a worker information setting unit 41 , a worker information acquisition unit 42 , and an identity verification information acquisition unit 43 .

The worker information setting part 41 is a part in which the worker information Ibr is set. The worker information Ibr includes work status information Ib and restriction information Ir (see FIG. 3). The worker information setting section 41 corresponds to the restriction information setting section 31 and the work situation information setting section 35 . More specifically, as shown in FIG. 3, worker information Ibr is set (individually) for each of a plurality of workers. Therefore, the worker information Ibr includes information (an example of the work situation information Ib) specifying who the worker is. Further, in the worker information Ibr, contents of restrictions on the work machine 10 are set for each of a plurality of types of attachments A (see FIG. 1). Specifically, for example, the worker information Ibr indicates whether or not a specific worker can work normally (whether normal operation is possible, whether work is restricted) for each of a plurality of types of attachments A. It may contain information indicating For example, the worker information Ibr may include information as to whether or not a specific worker is qualified to operate each of a plurality of types of attachments A.

The worker information Ibr is set for each “worker” who performs work related to the work machine 10 . This “operator” may be an operator who is going to operate the work machine 10 or an operator who is operating the work machine 10 . This "operator" may be an instructor who instructs the operator. This “operator” may be an administrator of work machine 10 . This “operator” may be a supervisor at a work site where work machine 10 performs work.

The worker information setting unit 41 (see FIG. 2) may be provided on an item held by the worker. Specifically, for example, the worker information setting unit 41 may be provided in a helmet, clothes, card (employee ID card, etc.) or an information terminal (smartphone, tablet, etc.) held by the worker. The worker information setting unit 41 may include encoded worker information Ibr. The encoded worker information Ibr may be, for example, a barcode (one-dimensional barcode, two-dimensional barcode, etc.). The worker information setting unit 41 may include a storage medium storing the worker information Ibr. The storage medium storing the worker information Ibr may be, for example, an IC (Integrated Circuit) chip or a storage medium provided in an information terminal. More specifically, for example, the worker information setting unit 41 may be a barcode provided on a helmet or card held by the worker, or an IC card (a card with an IC chip) held by the worker. Well, it may be an information terminal that the worker has.

The worker information acquisition unit 42 acquires worker information Ibr (see FIG. 3), as shown in FIG. The worker information acquisition unit 42 corresponds to the work situation information acquisition unit 37 that acquires information (an example of the work situation information Ib) specifying the worker. Also, the worker information acquisition unit 42 corresponds to the restriction information acquisition unit 33 that acquires the restriction information Ir of a specific worker.

The worker information acquisition unit 42 acquires the worker information Ibr from the worker information setting unit 41, for example. For example, the worker information acquiring unit 42 may be a device (reader) that reads the worker information Ibr from the worker information setting unit 41 provided on an object held by the worker. For example, the worker information acquisition unit 42 is arranged near the worker. Specifically, for example, the worker information acquiring unit 42 may be arranged inside the work machine 10, or may be arranged inside the driver's cab 11b1 (see FIG. 1). The worker information acquisition unit 42 may be arranged outside the work machine 10, for example, in a remote control unit (not shown). Specifically, for example, when the worker information Ibr is encoded, the worker information acquisition unit 42 may include a device (such as a barcode reader) that reads the encoded information. When the worker information Ibr is stored in a storage medium, the worker information acquisition unit 42 may include a device (for example, an IC card reader, a short-range communication device, etc.) that reads the information in the storage medium. For example, the worker information acquisition unit 42 may acquire the worker information Ibr only once or multiple times. For example, the worker information acquisition unit 42 may acquire the worker information Ibr before or during the work of the work machine 10 (see FIG. 1).

The personal identification information acquisition unit 43 is provided to prevent impersonation of an operator. The identity verification information acquisition unit 43 acquires identity verification information. The personal identification information is information for performing multi-factor authentication (for example, two-factor authentication) on the work status information Ib of the worker, and is information for confirming the identity of the worker. For example, the identity verification information is information based on what only the worker himself/herself has. Specifically, for example, the identity verification information may be information known only to the worker himself, may be a password specified by the worker, or may be a hash value calculated from this password. In this case, the personal identification information acquiring unit 43 may be provided with an input device for information known only to the worker himself/herself. The identity verification information may be information based on things that only the worker has. The information based on what only the worker has may be, for example, information (a bar code, information stored in an IC chip, etc.) set on an employee ID card held by the worker. In this case, the personal identification information acquiring unit 43 may be provided with a device for reading information based on an object that only the worker himself/herself has. In this case, the personal identification information acquisition unit 43 may also serve as the worker information acquisition unit 42 . The personal identification information may be biometric information of the operator, such as fingerprint, voiceprint, retina shape, capillary blood vessel shape, face shape, and the like. In this case, the personal identification information acquisition unit 43 may include a sensor (microphone, camera, etc.) that detects biometric information. For example, the identity verification information acquisition unit 43 may acquire identity verification information only once or multiple times. For example, the personal identification information obtaining unit 43 may obtain the personal identification information before or during the work of the work machine 10 (see FIG. 1).

(When restricting by location)
A case where the operation restriction determination system 1 restricts the operation of the work machine 10 based on the position information (an example of the work situation information Ib) of the work machine 10 will be described. In this case, for example, the operation limitation determination system 1 includes a position limitation information setting unit 45 (an example of the limitation information setting unit 31) and a position information acquisition unit 46 (an example of the work situation information acquisition unit 37).

The location restriction information setting portion 45 is a portion in which location restriction information Ir is set. For example, the position restriction information setting unit 45 may be included in the controller 50 or may be provided separately from the controller 50 (the same applies to the time restriction information setting unit 47). As shown in FIG. 4, the restriction information Ir set in the location restriction information setting unit 45 includes a position (area, range, space) and restriction details for each of the plurality of types of attachments A (see FIG. 1). This is information indicating the relationship.

The position information acquisition unit 46 (see FIG. 2) acquires position information (position information) of the work machine 10 (position information acquisition device). The position information acquisition unit 46 shown in FIG. 2 may use, for example, a satellite positioning system, and more specifically, may use, for example, GNSS (global navigation satellite system). The position information acquisition unit 46 is mounted on the work machine 10 . As shown in FIG. 1, a device (for example, a GNSS antenna 46a) for position acquisition by the position information acquisition unit 46 may be provided in the machine body 11, or may be provided in, for example, the upper revolving body 11b. A device for position acquisition by the position information acquisition unit 46 may be provided in the attachment 12, or may be provided in the tip attachment 12c, for example.

(When restricting by time)
A case will be described where the operation restriction determination system 1 restricts the operation of the work machine 10 based on time information (an example of the work situation information Ib). In this case, for example, as shown in FIG. 2, the operation limit determination system 1 includes a time limit information setting unit 47 (an example of the limit information setting unit 31) and a time information acquisition unit 48 (an example of the work situation information acquisition unit 37). ) and

The time limit information setting unit 47 sets the time limit information Ir (see FIG. 4, where "position" in FIG. 4 is read as "time"). The restriction information Ir set in the time restriction information setting unit 47 includes a time range (time zone, date, day of the week, month, year, etc.), restriction contents, and This is information indicating the relationship between

The time information acquisition unit 48 acquires the current time. The time information acquisition unit 48 may use a satellite positioning system, and may also be used as the position information acquisition unit 46 . The time information acquisition unit 48 may not use a satellite positioning system, and may not be used as the position information acquisition unit 46 .

The controller 50 is a computer that performs signal input/output, computation (processing), information storage, and the like. For example, the functions of the controller 50 are implemented by executing a program stored in a storage unit (not shown) of the controller 50 by a computing unit (not shown). For example, the attachment information Ia is input to the controller 50 from the attachment information acquisition unit 22 . For example, the work situation information Ib is input to the controller 50 from the work situation information acquisition unit 37 . For example, controller 50 outputs a command for operating work machine 10 to drive control unit 16 . For example, the controller 50 outputs a command for notification to the notification unit 91 . As described above, the communication between the controller 50 and elements other than the controller 50 (for example, the attachment information acquisition unit 22, etc.) may be wired communication or wireless communication, for example, CAN (Controller Area Network) communication. The communication within the controller 50 is the same as wired communication or wireless communication. Only one controller 50 may be provided, or may be provided at a plurality of locations. Controller 50 may be placed at any position. For example, controller 50 includes machine-side controller 60 and server-side controller 70 .

The machine-side controller 60 is mounted on the work machine 10 . The machine-side controller 60 includes a machine-side communication section 61 and an operation control section 63 (operation restriction section).

The machine-side communication unit 61 is a part (communication unit, communication device) that performs communication. For example, the machine-side communication unit 61 communicates with the server-side controller 70 . The machine-side communication section 61 may communicate with a section different from the server-side controller 70 (for example, the attachment information setting section 21, the operator information setting section 41, etc.). For example, when the machine-side communication section 61 communicates with the attachment information setting section 21 , the machine-side communication section 61 may be the attachment information acquisition section 22 . For example, when the machine-side communication section 61 communicates with the worker information setting section 41 , the machine-side communication section 61 may be the worker information acquisition section 42 .

The operation control section 63 (operation limiting section) controls the operation of the work machine 10 . The operation control section 63 may control the engine 14 . The operation control section 63 may control the operation of the machine body 11 (see FIG. 1) by controlling the drive control section 16 . The operation control section 63 may control the operation of the attachment 12 (see FIG. 1) by controlling the drive control section 16 . The operation control section 63 limits the operation of the work machine 10 . The operation control unit 63 limits the operation of the work machine 10 based on the content of the limitation determined by the determination unit 75 (details of the limitation will be described later).

A server-side controller 70 (server) is provided outside the work machine 10 . The server-side controller 70 includes a server-side communication section 71 , an information analysis section 73 and a determination section 75 .

The server-side communication unit 71 is a part (communication unit, communication device) that performs communication. For example, the server-side communication unit 71 communicates with the machine-side controller 60 . The server-side communication section 71 may communicate with parts other than the machine-side controller 60 (similar to the machine-side communication section 61). For example, the server-side communication section 71 may communicate with the attachment information acquisition section 22 and the work status information acquisition section 37 without going through the machine-side controller 60 .

The information analysis unit 73 analyzes the information input to the information analysis unit 73 (information analysis device). For example, the information analysis unit 73 puts the information input to the information analysis unit 73 into a state in which the determination unit 75 can make a determination. The information analysis unit 73 may, for example, analyze the attachment information Ia or the work status information Ib.

The determination unit 75 determines (determines and determines) the current restrictions on the operation of the work machine 10 (details will be described later).

The security processing unit 80 performs information security-related processing (countermeasures) on information communicated in the operation restriction determination system 1 . For example, the security processing unit 80 may implement security measures for at least one of the attachment information Ia, the work status information Ib, and information on the determination result of the determination unit 75 . For example, the security processing section 80 may implement security measures for communication between the attachment information setting section 21 and the attachment information acquisition section 22 . For example, the security processing section 80 may implement security measures for communication between the attachment information acquisition section 22 and the controller 50 . For example, the security processing section 80 may implement security measures for communication between the work status information acquiring section 37 and the controller 50 . For example, the security processing unit 80 may implement security measures for communications within the controller 50. Specifically, for example, security measures may be implemented for communications between the machine-side controller 60 and the server-side controller 70. may The security processing unit 80 may be included in the controller 50 or provided outside the controller 50 . For example, the security processing unit 80 takes security measures using key information. Specifically, for example, the security processing unit 80 may prevent information from being stolen by an intermediary by encrypting and decrypting information. For example, the security processing unit 80 may add a code for detecting falsification (such as a message authentication code) or a digital signature to the information, thereby suppressing detection of falsification and spoofing of the information. The security processing unit 80 may have a function of adding a correction code to information and correcting errors.

The notification unit 91 notifies a person (for example, a worker). The notification by the notification unit 91 may be by light, or may be by screen display, for example. The notification by the notification unit 91 may be by sound, for example, by voice. Notification by the notification unit 91 may be by vibration. The notification unit 91 may be provided in the work machine 10, and may be provided inside the driver's cab 11b1 (see FIG. 1), for example. The notification unit 91 may be provided outside the work machine 10, for example, in the server-side controller 70 or the like. The notification unit 91 may be provided in, for example, a device (such as an information terminal) held by the worker. The notification unit 91 may be, for example, an information terminal capable of vibrating.

(activation)
The operation limitation determination system 1 is configured to operate as follows. The operation restriction determination program causes the controller 50 (computer) to execute the following processes. The operation limitation determination method performs the following processing. Below, FIG. 2 will be mainly referred to for each component of the operation limitation determination system 1 described above, and each step will be described with reference to FIGS. 5 and 6 .

In step S11 (see FIG. 5), the attachment information acquisition unit 22 shown in FIG. 2 acquires the attachment information Ia of the current attachment Ac (see FIG. 1) (attachment information acquisition step). In addition, in FIG.5 and FIG.6, the "attachment" was described as "ATT." Specifically, for example, the attachment information setting unit 21 shown in FIG. 2 is provided (attached) to the current attachment Ac (see FIG. 1). Then, the attachment information acquisition unit 22 acquires the attachment information Ia set in the attachment information setting unit 21 provided in the current attachment Ac. The attachment information acquisition unit 22 outputs the acquired attachment information Ia to the controller 50 (for example, the machine controller 60).

In step S12 (see FIG. 5), the work situation information acquisition unit 37 acquires work situation information Ib regarding the current situation of the work machine 10 (work situation information acquisition step). Specifically, for example, the worker information acquisition unit 42 acquires work status information Ib (for example, information indicating who the worker is) as a result of acquiring worker information Ibr from a specific worker. For example, the position information acquisition unit 46 acquires information on the current position of the work machine 10 . For example, the time information acquisition unit 48 acquires information on the current time. The work status information acquisition unit 37 outputs the acquired work status information Ib to the controller 50 (for example, the machine controller 60).

In step S13 (see FIG. 5), the machine-side controller 60 (machine-side communication unit 61) transmits the attachment information Ia and the work status information Ib to the server-side controller 70 (communication step, information transmission step). The machine-side controller 60 may further transmit restriction information Ir to the server-side controller 70 . Specifically, for example, the machine-side controller 60 may transmit the attachment information Ia and the worker information Ibr to the server-side controller 70 . In addition, in FIG. 5, the server-side controller 70 is described as a "server".

In step S21 (see FIG. 6), the server-side controller 70 (server-side communication unit 71) shown in FIG. 2 receives information from the machine-side controller 60 (communication step, information reception step). More specifically, server-side controller 70 determines whether information has been received from machine-side controller 60 . If the server-side controller 70 has received information from the machine-side controller 60 (YES in step S21), the flow proceeds to next step S22.

In step S22 (see FIG. 6), the information (specifically, attachment information Ia and work status information Ib) received by the server-side controller 70 may be analyzed by the information analysis unit 73 (information analysis step). .

In step S31 (see FIG. 6), the determination unit 75 determines the current restrictions on the operation of the work machine 10 (determination step). More specifically, based on the attachment information Ia acquired by the attachment information acquisition unit 22, the work situation information Ib acquired by the work situation information acquisition unit 37, and the restriction information Ir, the determination unit 75 determines the current Determining operational limits for work machine 10;

For example, when information about workers is included in the work status information Ib (see FIG. 3), a specific example of determination by the determination unit 75 is as follows. The attachment information Ia includes information on the type (for example, bucket, breaker, nibbler, etc.) of the tip attachment 12c, which is the current attachment Ac shown in FIG. As shown in FIG. 3, the worker information Ibr includes information about the operation of the work machine 10 for each of the plurality of types of end attachments 12c (see FIG. 1) for a worker who is about to operate the work machine 10 (the current worker). Contains information about restrictions. Specifically, for example, the worker information Ibr includes information as to whether or not the current worker can normally work (normally operate, normally use) the tip attachment 12c, which is the current attachment Ac (see FIG. 1). The determination unit 75 shown in FIG. 2 determines whether or not the type of the tip attachment 12c, which is the current attachment Ac (see FIG. 1), is a type that the current worker can normally work with. If the type of the tip attachment 12c, which is the current attachment Ac, is a type that the current worker can normally work with (YES in step S31 shown in FIG. 6), the determination unit 75 determines that there is no work restriction (normal work is permitted). (step S32). If the type of the tip attachment 12c, which is the current attachment Ac, is not a type that the current worker can normally work with (NO in step S31), the determination unit 75 determines that there is work restriction (for example, work is prohibited) (step S33). judge.

The worker information acquisition unit 42 may acquire worker information Ibr of a plurality of workers. For example, it is assumed that the worker information acquiring unit 42 acquires the worker information Ibr of the operator of the work machine 10 and the worker information Ibr of the instructor of this operator. When the worker information acquisition unit 42 acquires the worker information Ibr of a plurality of workers, the determination unit 75 may determine the contents of work restrictions based on the worker information Ibr of the plurality of workers. good. Specifically, for example, the determination based on the worker information Ibr of a certain worker (for example, an operator) is "with work restrictions", and the determination based on the worker information Ibr of another worker (for example, a leader) is " Ordinary Work Permit”. In this case, the determination unit 75 may determine that "normal work is permitted" based on the worker information Ibr of the instructor.

When the worker information acquisition unit 42 cannot acquire the worker information Ibr, the determination unit 75 may determine that there is work restriction (step S33 shown in FIG. 6). In this case, the controller 50 may cause the notification unit 91 to notify that the worker information Ibr could not be obtained.

The determination unit 75 may determine operation restriction based on information (an example of the work status information Ib) as to whether or not the identity verification information of the worker has been acquired by the identity verification information acquisition unit 43 . For example, when the identity verification information acquisition unit 43 cannot acquire identity verification information, the determination unit 75 may determine that work is restricted (step S33 shown in FIG. 6). In this case, the controller 50 may cause the notification unit 91 to notify that the personal identification information could not be acquired.

In steps S32 and S33 (see FIG. 6), the server-side controller 70 (more specifically, the server-side communication unit 71) sends the determination result of the determination unit 75 (limitation of operation of the work machine 10) to the machine-side controller 60. Transmit (communication step, determination result transmission step).

In step S41 (see FIG. 5), the machine-side controller 60 (more specifically, the machine-side communication section 61) receives the determination result of the determination section 75 from the server-side controller 70 (communication step, determination result receiving step). More specifically, machine-side controller 60 determines whether information has been received from server-side controller 70 . If the machine-side controller 60 has received information from the server-side controller 70 (YES in step S41), the flow proceeds to next step S42.

In step S42 (see FIG. 5), the operation information acquisition unit 17b acquires (detects) information on the operation of the operation unit 15 (for example, presence/absence of operation). Thereby, it is detected that the worker is going to operate the work machine 10 .

When the determination unit 75 determines that there is no work restriction (normal work permitted) (YES in step S51), the operation control unit 63 does not restrict the operation of the work machine 10 (step S52) (unrestricted step). . In this case, for example, the machine-side controller 60 sets the state of control by the operation control section 63 to "normal working state". The normal work state is, for example, a state in which the work machine 10 is operated according to the operation on the operation unit 15 .

When the determination unit 75 determines that there is work restriction (work restriction) (NO in step S51), the operation control unit 63 restricts the operation of the work machine 10 (step S53) (restriction step). In this case, for example, the machine-side controller 60 sets the state of control by the operation control section 63 to the "work restricted state."

Restriction of the operation of the work machine 10 (hereinafter simply referred to as “restriction of operation of the work machine 10”) that is performed when the determining unit 75 determines that there is a work restriction is to stop the operation of the work machine 10 (“prohibition of work”). ) can be used. In this case, the operation control section 63 may stop the engine 14 . For example, the operation control unit 63 may not start the engine 14 or may stop the engine 14 that is being driven. Also, the operation control unit 63 may stop the actuator 13 . For example, the operation control unit 63 may not supply hydraulic fluid to the hydraulic actuator 13 or may not supply electric power to the electric actuator 13 .

Restrictions on the operation of work machine 10 may be restrictions that do not stop work machine 10 (operation restrictions that are not “work prohibited”). For example, the actuation control section 63 may limit the actuation speed of the actuator 13 . For example, the operation control unit 63 may limit the flow rate of hydraulic oil supplied to the hydraulic actuator 13 (more limited than in a normal state), or limit the electric power supplied to the electric actuator 13. good. The operation control unit 63 may limit the operating speed of the actuator 13 as a result of limiting the rotation speed of the engine 14 . The operation control section 63 may limit the operation of specific portions of the actuator 13 . Specifically, for example, the operation control unit 63 may limit the operation of the tip attachment 12c shown in FIG. 1 and not limit the operation of the boom 12a and the arm 12b. Further, for example, the operation control unit 63 (see FIG. 2) may limit the operation of the attachment 12 and not limit the traveling of the work machine 10 .

When the operation of work machine 10 is restricted (step S53 shown in FIG. 5), notification unit 91 shown in FIG. 2 may notify that the operation of work machine 10 is restricted. For example, the notification unit 91 notifies that the operation of the work machine 10 is restricted (for example, that the operation control unit 63 has shifted to a state in which the operation of the work machine 10 is restricted) is notified to the outside of the work machine 10 (for example, the work machine 10 administrators, etc.). For example, the notification unit 91 may notify the content of the restriction on the operation of the work machine 10 (what kind of restriction is to be performed). For example, when the operation unit 15 is operated (when the operator is about to operate the work machine 10) even though the operation of the work machine 10 is restricted, the notification unit 91 notifies that effect. may notify you.

When there is no operation on the operation unit 15 (NO in step S42 shown in FIG. 5), the machine-side controller 60 may set the state of control by the operation control unit 63 to the "normal working state." , may be set to "work restricted state". More specifically, even when the determination unit 75 determines that the operation is restricted (step S33 shown in FIG. 6), if the operation unit 15 is not operated, the machine-side controller 60 causes the operation control unit 63 to The state of control may be changed to "normal working state". Further, when the determination unit 75 determines that the "work restriction state" is reached, the machine-side controller 60 may set the state of control by the operation control unit 63 to the "work restriction state" regardless of the operation of the operation unit 15. .

(Concrete examples of restriction information Ir and work status information Ib)
The restriction information Ir (see FIGS. 3 and 4) can be set variously. A specific example of the restriction information Ir will be described below.

[Example C] For example, as the restriction information Ir, a position and time at which operation of a specific type of attachment 12 (see FIG. 1) is permitted may be set. In this case, the work status information Ib is position and time. [Example C1] For example, the restriction information Ir may be set based on information (construction details, construction management information) such as the position and time at which the work machine 10 performs the work, and the type of the tip attachment 12c to be used. . In this case, the restriction information Ir may be set such that work by the work machine 10 in accordance with the construction management information is permitted (normal work permitted) and work by the work machine 10 not in accordance with the construction management information is restricted. [Example C2] For example, it is assumed that an event is held at a specific time at a location near the work site where the work machine 10 is working. In this case, the restriction information Ir may be set so as to restrict (for example, prohibit) the work of the work machine 10 at a position near the work site and at the time when the event is held.

[Example D] For example, as the restriction information Ir, a position and a worker (operator) who are permitted to operate a specific type of attachment 12 (see FIG. 1) may be set. In this case, the work status information Ib is the position and the worker. [Example D1] For example, at a specific position (for example, near a bank), only authorized workers can perform work using the tip attachment 12c (see FIG. 1) (breaker, nibbler, etc.) for breaking things. Restriction information Ir may be set so that

A plurality of types of information (for example, two types of worker and position) may be set as the work status information Ib. In this case, the content of restrictions on the work machine 10 based on a certain type of work situation information Ib (for example, normal work permission), the content of restrictions on the work machine 10 based on another type of work situation information Ib (for example, work restrictions), are assumed to be different. When the restriction contents based on the plurality of types of work situation information Ib are different, the operation control unit 63 may restrict the work machine 10 based on the stricter restriction contents. A specific example of the "stricter restriction content" is as follows. For example, "restricted work" is stricter than "normal work permitted". For example, regarding the speed limit of an attachment 12, a slower speed limit value is a stricter limit than a faster speed limit value. For example, the restriction to stop the work machine 10 (“prohibition of work”) is stricter than the restriction to not stop the work machine 10 .

(Effect of the first invention)
The effects of the operation limitation determination system 1 shown in FIG. 2 are as follows. The operation restriction determination system 1 includes a restriction information setting section 31 , an attachment information acquisition section 22 , a work situation information acquisition section 37 and a determination section 75 .

[Arrangement 1] Limit information Ir is set in the limit information setting unit 31 . As shown in FIG. 3, the restriction information Ir includes work status information Ib, which is information about the status of the work machine 10, and work status information Ib for each of a plurality of types of attachments A (see FIG. 1) that can be provided on the work machine 10; This is information indicating the relationship between the contents of restrictions on the operation of the machine 10 . The attachment information acquisition unit 22 shown in FIG. 2 acquires the attachment information Ia. The attachment information Ia includes information on the type of the current attachment Ac, which is the attachment 12 provided on the work machine 10 shown in FIG. The work situation information acquisition unit 37 shown in FIG. 2 acquires work situation information Ib. Based on the attachment information Ia acquired by the attachment information acquisition unit 22, the work situation information Ib acquired by the work situation information acquisition unit 37, and the restriction information Ir, the determination unit 75 determines the current status of the work machine 10. Determine the limits of operation.

With the above [Configuration 1], based on the information (attachment information Ia) including the type of the current attachment Ac shown in FIG. is determined. Therefore, it is possible to determine the contents of restrictions on the operation of work machine 10 based on the type of attachment 12 provided on work machine 10 and the condition of work machine 10 .

For example, compared to the case where the content of restrictions on the operation of the work machine 10 is determined based on the situation (for example, position) of the work machine 10 regardless of the type of the current attachment Ac, an appropriate Limitations on the operation of work machine 10 may be provided. In addition, for example, regardless of the situation (for example, position, etc.) of the work machine 10, compared to the case where the contents of restrictions on the operation of the work machine 10 are determined based on the type of the current attachment Ac, the Appropriate work machine 10 operation limits may be implemented. As a result of being able to restrict the operation of the work machine 10 appropriately according to the situation regarding the work machine 10, excessive or insufficient restriction of the operation of the work machine 10 can be suppressed.

(Effect of the second invention)
[Configuration 2] As shown in FIG. 2, the operation restriction determination system 1 includes an operation control section 63 (operation restriction section). The operation control unit 63 limits the operation of the work machine 10 based on the content of limitation determined by the determination unit 75 .

According to [Configuration 2] described above, the operation of the work machine 10 can be restricted according to the restrictions determined by the determination unit 75 .

(Effect of the third invention)
[Arrangement 3] The work status information Ib includes information about the worker who performs work on the work machine 10 .

[Configuration 3] described above makes it possible to determine the contents of restrictions on the operation of the work machine 10 according to the type of the current attachment Ac shown in FIG. 1 and the information about the worker (for example, who the worker is). Specifically, for example, a worker who is not qualified to use the current attachment Ac can be restricted from using the current attachment Ac normally.

(Effect of the fourth invention)
[Configuration 4] As shown in FIG. 2, the operation restriction determination system 1 includes an identity verification information acquisition section 43 that acquires identity verification information for authenticating the worker. The work status information Ib includes that the identity verification information of the worker (above-mentioned [configuration 3]) has been acquired by the identity verification information acquisition unit 43 .

By the above [Configuration 4], based on whether or not the identity verification information of the worker (the above [Configuration 3]) has been acquired by the identity verification information acquisition unit 43, the restriction on the operation of the work machine 10 is determined. can be done. As a result, it is possible to prevent a worker from impersonating another worker and performing work (for example, operation or supervision) on the work machine 10 .

(Effect of the fifth invention)
[Configuration 5] The work status information Ib includes information on the position of the work machine 10 (see FIG. 4).

According to [Configuration 5] described above, the operation of the work machine 10 can be restricted based on the type of the current attachment Ac shown in FIG. 1 and the position information of the work machine 10 .

(Effect of the sixth invention)
[Configuration 6] The work status information Ib (see FIG. 2) includes information on the time when the work machine 10 performs work.

[Configuration 6] above makes it possible to limit the operation of the work machine 10 based on the type of the current attachment Ac and the time.

(Effect of the seventh invention)
[Structure 7] The determination unit 75 shown in FIG. 2 is provided outside the work machine 10 .

With the above [configuration 7], in the working machine 10 , there is no need to perform determination processing by the determination unit 75 . Therefore, it is possible to suppress an increase in the processing load of the controller 50 (machine-side controller 60) provided in the work machine 10. FIG.

(Effect of the eighth invention)
[Arrangement 8] The operation restriction determination system 1 includes a security processing section 80 . The security processing unit 80 performs information security-related processing on at least one of the attachment information Ia, the work status information Ib, and information on the determination result of the determination unit 75 .

With the above [Configuration 8], for example, at least one of information theft suppression and information falsification detection can be performed.

(Effect of the ninth invention)
The effects of the operation limitation determination method of this embodiment are as follows.

[Arrangement 9-1] The operation restriction determination method includes a restriction information setting step, an attachment information acquisition step (step S11 in FIG. 5), a work status information acquisition step (step S12 in FIG. 5), and a determination step (FIG. 6 and step S31).

[Arrangement 9-2] In the restriction information setting step, restriction information Ir (see FIGS. 3 and 4) is set. The restriction information Ir indicates the relationship between the work status information Ib, which is information about the status of the work machine 10, and the restrictions on the operation of the work machine 10, for each of a plurality of types of attachments A that can be provided on the work machine 10. This is the information shown. The attachment information acquisition step (step S11 in FIG. 5) acquires attachment information Ia. The attachment information Ia includes information on the type of the current attachment Ac, which is the attachment 12 provided on the work machine 10 shown in FIG. The work situation information acquisition step (step S12 in FIG. 5) acquires work situation information Ib. The determination step (step S31 in FIG. 6) includes the attachment information Ia acquired by the attachment information acquisition unit 22 shown in FIG. 2, the work situation information Ib acquired by the work situation information acquisition unit 37, the restriction information Ir, to determine the current work machine 10 operation limitations.

With the above [Configuration 9-2], the same effect as the above "(Effect of the first invention)" can be obtained.

(Effect of the tenth invention)
The effects of the operation restriction determination program are as follows.

[Configuration 10] The operation restriction determination program controls a restriction information setting step, an attachment information acquisition step, a work status information acquisition step, and a determination step (see [Configuration 9-2] above) to the controller 50 (computer ) to run.

With the above [Configuration 10], the same effect as the above "(Effect of the first invention)" can be obtained.

(Modification)
The above embodiments may be modified in various ways. For example, the number of components (including variations) of the above embodiments may be changed, and some of the components may not be provided. For example, variations of the above embodiments may be combined in various ways. For example, the connection of each component shown in FIG. 2 may be changed. For example, what has been described as a plurality of different members or parts may be treated as a single member or part. For example, what has been described as one member or portion may be divided into a plurality of different members or portions. For example, the contents of various information may not be changed, may be changed by manual operation, or may be changed automatically by the controller 50 or the like according to some conditions. For example, the order of steps in the flowcharts shown in FIGS. 5 and 6 may be changed, and some steps may not be performed. For example, each component may have only a portion of each feature (function, arrangement, shape, actuation, etc.).

1 Operation Restriction Judgment System 10 Working Machine 12 Attachment 22 Attachment Information Acquisition Unit 31 Restriction Information Setting Unit 37 Work Situation Information Acquisition Unit 43 Identity Verification Information Acquisition Unit 63 Operation Control Unit (Operation Restriction Unit)
75 determination unit 80 security processing unit A multiple types of attachments Ac current attachment Ia attachment information Ib work status information Ir restriction information

Claims (10)

Restrictions in which restriction information indicating the relationship between work status information, which is information relating to the status of the work machine, and restrictions on the operation of the work machine, is set for each of a plurality of types of attachments that can be provided on the work machine. an information setting unit;
an attachment information acquiring unit that acquires attachment information including information about the type of the current attachment that is the attachment provided on the working machine;
a work status information acquisition unit that acquires the work status information;
the restriction content of the current operation of the work machine based on the attachment information acquired by the attachment information acquisition unit, the work situation information acquired by the work situation information acquisition unit, and the limitation information; a determination unit that determines
comprising
Operation limit judgment system. The operation limitation determination system according to claim 1,
an operation limiter that limits the operation of the work machine based on the content of the limitation determined by the determination unit;
Operation limit judgment system. The operation limitation determination system according to claim 1 or 2,
The work status information includes information about a worker who performs work on the work machine,
Operation limit judgment system. The operation limitation determination system according to claim 3,
An identity verification information acquisition unit that acquires identity verification information for authenticating the worker,
The work status information includes information as to whether or not the identity verification information of the worker himself/herself has been acquired by the identity verification information acquisition unit,
Operation limit judgment system. The operation limitation determination system according to any one of claims 1 to 4,
the work status information includes position information of the work machine;
Operation limit judgment system. The operation limitation determination system according to any one of claims 1 to 5,
The work status information includes information on the time at which the work machine performs work,
Operation limit judgment system. The operation limitation determination system according to any one of claims 1 to 6,
The determination unit is provided outside the work machine,
Operation limit judgment system. The operation limitation determination system according to any one of claims 1 to 7,
a security processing unit that performs information security-related processing on at least one of the attachment information, the work status information, and information on the determination result of the determination unit;
Operation limit judgment system. Restriction information for setting restriction information indicating the relationship between work status information, which is information relating to the status of the work machine, and restrictions on the operation of the work machine, for each of a plurality of types of attachments that can be provided on the work machine. a configuration step;
an attachment information acquiring step of acquiring attachment information including information on the type of the current attachment, which is the attachment provided on the working machine;
a work status information acquisition step of acquiring the work status information;
the restriction content of the current operation of the work machine based on the attachment information acquired in the attachment information acquisition step, the work status information acquired in the work status information acquisition step, and the restriction information; a decision step of determining
comprising
Operation limit judgment method. Restriction information for setting restriction information indicating the relationship between work status information, which is information relating to the status of the work machine, and restrictions on the operation of the work machine, for each of a plurality of types of attachments that can be provided on the work machine. a configuration step;
an attachment information acquiring step of acquiring attachment information including information on the type of the current attachment, which is the attachment provided on the working machine;
a work status information acquisition step of acquiring the work status information;
the restriction content of the current operation of the work machine based on the attachment information acquired in the attachment information acquisition step, the work status information acquired in the work status information acquisition step, and the restriction information; a decision step of determining
Operation limit determination program that causes a computer to execute

Images