Machinery startup system

Abstract

Properly control the pre-startup of the work machinery. [Solution] A machine starting system comprising: a starting instruction device that outputs a starting instruction to start a stopped machine in response to an operation by an operator; and a control device that performs pre-start control to start a portion of the stopped machine in advance if a pre-start condition is met prior to the output of a starting instruction from the starting instruction device, wherein the control device disables the execution of pre-start control and maintains the stopped state of a portion of the machine when a deactivation condition is met.

Description

Technical Field

[0001] The present invention relates to a working machine.

Background Art

[0002] In recent years, with the increase in functionality of working machines, electronic devices operating on a general-purpose operating system (OS) have been installed. In this type of working machine, since it takes time to start the general-purpose OS of the installed electronic device, the waiting time from the start operation by the operator until it becomes operable becomes long.

[0003] Therefore, as a technology for shortening the waiting time of the operator, for example, in Patent Document 1, even before the start operation of the engine of a construction machine by the operator, a technology for starting to energize the electronic device in advance triggered by unlocking the door lock of the cab of the construction machine is disclosed. According to this technology, by pre-energizing the electronic device, it is possible to shorten the apparent waiting time from when the operator sits on the driver's seat until the engine can be started.

[0004] On the other hand, during maintenance and inspection work of a working machine, there may be cases where a power line is grounded or short-circuited. Due to the grounding or short-circuit of the power line, there is a risk that the worker may get an electric shock or the electronic device of the working machine may be damaged. Therefore, a cut-off switch for electrically separating the electronic device and the battery is provided in the working machine. By operating the cut-off switch and pre-cutting off the electronic device and the battery during maintenance and inspection work of the working machine, electric shock to the worker and damage to the electronic device are prevented.

[0005] However, in a working machine, if the cut-off switch is operated during startup of the electronic device, the power supply to the electronic device may be cut off, and there is a risk of losing the data being processed.

[0006] Therefore, as a technology for preventing accidental interruption of the power supply to the electronic device, for example, Patent Document 2 discloses a technology for displaying the power supply to a controller (electronic device) in a construction machine. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Patent No. 7215264 [Patent Document 2] Patent No. 5689231 [Overview of the project] [Problems that the invention aims to solve]

[0008] However, with the conventional technology described above, if another person, such as an operator, unlocks the door lock to the operator's cab of the work machine when a worker operates the shut-off switch for inspection and maintenance work, the work machine will be pre-started against the worker's intention. Similarly, if a worker unlocks the door lock to the operator's cab of the work machine for inspection and maintenance work, the work machine will be pre-started against the worker's intention. Once the work machine is pre-started, in order for a worker to operate the shut-off switch, they must start the work machine, then stop it, and wait until the work machine has stopped, which hinders the smooth execution of inspection and maintenance work. There is a need to appropriately control such pre-starting of work machines against the worker's intention.

[0009] This invention aims to appropriately control the pre-startup of work machinery that is contrary to the intended purpose, taking into consideration the above-mentioned problems. [Means for solving the problem]

[0010] In one aspect of the present invention, a machine startup system comprises a startup instruction device that outputs a startup instruction to start a machine that is stopped in response to an operation by an operator, and a control device that performs pre-start control to start a part of the machine that is stopped in advance if a pre-start condition is met prior to the output of a startup instruction from the startup instruction device, wherein the control device disables the execution of the pre-start control and maintains the stopped state of a part of the machine when a deactivation condition is met. [Effects of the Invention]

[0011] According to the present invention, it is possible to appropriately control the pre-starting of work machinery against the intended purpose. [Brief explanation of the drawing]

[0012] [Figure 1] A diagram showing the external appearance of a work machine according to an embodiment. [Figure 2] A diagram showing the configuration of the system mounted on the work machine according to the embodiment. [Figure 3] A diagram showing an example of pre-startup conditions in an embodiment. [Figure 4] A diagram showing the conditions under which pre-startup is prohibited in the embodiment. [Figure 5] A diagram showing the conditions for interrupting pre-startup in the embodiment. [Figure 6] A flowchart illustrating the startup control process of a work machine according to the embodiment. [Modes for carrying out the invention]

[0013] The working machinery according to the embodiment will be described below with reference to Figures 1 to 7. In the following description, a hydraulic excavator will be used as an example of the working machinery according to the embodiment. However, the working machinery disclosed in this application is not limited to hydraulic excavators, but broadly includes working machinery such as bulldozers, wheel loaders, compaction machines, and trucks.

[0014] (Configuration of the work machine 1 according to the embodiment) Figure 1 shows the external appearance of a work machine 1 according to an embodiment. The work machine 1 is a hydraulic excavator. The work machine 1 consists of an upper slewing body 12 including a cab 11 and a counterweight 17, a crawler-type lower traveling body 16, a boom 13, an arm 14, and a bucket 15.

[0015] Figure 2 is a diagram showing the configuration of the system mounted on the work machine 1 according to this embodiment.

[0016] The start switch 101 is a human interface for the operator to command the startup and shutdown of the work machine 1. The input device 102 includes a door opening / closing sensor 102a, a door lock sensor 102b, a boarding inhibition detection unit 102c, an in-vehicle communication unit 102d, a terminal position detection unit 102e, an inspection / maintenance cover opening / closing sensor 102f, a monitor operation unit 102g, and an operator terminal identification unit 102h.

[0017] The door opening / closing sensor 102a detects the opening and closing of a door (not shown) that leads to the interior of the cab 11 when the operator boards the work machine 1. The door lock sensor 102b detects the locking and unlocking of a door (not shown) that leads to the interior of the cab 11. The boarding inhibition detection unit 102c detects the operation and non-operation of a device that physically prevents the operator from boarding or alighting from the work machine 1, for example, the operation of a pilot shut-off lever.

[0018] The in-vehicle communication unit 102d communicates with a portable communication terminal (not shown) (hereinafter referred to as the "operator terminal") carried by the operator. The terminal position detection unit 102e detects the position information of the operator terminal. The inspection / maintenance cover opening / closing sensor 102f detects the opening and closing of an inspection / maintenance cover that covers an opening provided on the work machine 1 for inspection / maintenance. The monitor operation unit 102g is a device for receiving the operator's input based on the display of the monitor 160 that displays information related to the control of the work machine 1 to the operator. The operator terminal identification unit 102h identifies the operator terminal that communicates via the in-vehicle communication unit 102d. The operator terminal, the in-vehicle communication unit 102d, and the monitor operation unit 102g constitute an input reception unit that receives the input by the operator.

[0019] The startup device 110 outputs a startup command for starting the work machine control device 120 in response to a startup instruction based on the operation of the start switch 101 by the operator. The work machine control device 120 controls the work machine 1.

[0020] When the pre-start instruction device 130 outputs a pre-start command instructing the start device 110 to execute pre-start control so as to start the machine tool control device 120 when the pre-start conditions (FIG. 3) described later are satisfied according to the state of the machine tool 1 acquired from the input device 102 and the operation input by the operator. The machine tool control device 120 is, for example, a controller of the machine tool 1 that requires time for start-up processing because it has lighting for assisting the operator to get on and off the machine tool 1 and complex software and hardware.

[0021] FIG. 3 is a diagram showing an example of pre-start conditions in the embodiment. The pre-start conditions shown in FIG. 3 are all conditions that may be satisfied before the operator operates the start switch 101 when starting the machine tool 1. The pre-start conditions are stored as a predetermined storage area or the control logic of the pre-start instruction device 130.

[0022] The pre-start condition No. 1 “door lock unlocking operation exists” indicates that the unlocking operation of the door (not shown) of the cab 11 has been detected by the door lock sensor 102b. The pre-start condition No. 2 “door opening operation exists” indicates that the opening of the door of the cab 11 has been detected by the door opening / closing sensor 102a. The pre-start condition No. 3 “pre-start instruction from the operator terminal exists” indicates that the pre-start instruction of the machine tool 1 transmitted from the operator terminal has been received by the in-vehicle communication unit 102d. The pre-start condition No. 4 “approach of the operator terminal” indicates that the operator terminal carried by the operator has approached within a predetermined range of the machine tool 1 by the terminal position detection unit 102e. Note that the pre-start conditions are not limited to these.

[0023] Returning to the explanation of Figure 2, the deactivation interruption command device 140, in response to the output of the input device 102, outputs a deactivation command for pre-starting to prohibit pre-starting if any of the pre-starting conditions (Figure 3) are met, but the pre-starting prohibition condition has already been met. The start device 110, the pre-starting command device 130, and the deactivation interruption command device 140 are included in the control device 150. The start switch 101 (start instruction device) and the control device 150 constitute the start system of the work machine 1.

[0024] The deactivation interruption command device 140 includes a deactivation determination unit 141, a deactivation command unit 142, a timing unit 143, and an interruption command unit 144. The detailed processing functions of the deactivation determination unit 141, the deactivation command unit 142, the timing unit 143, and the interruption command unit 144 will be described later with reference to Figure 6.

[0025] Figure 4 shows the conditions for prohibiting pre-startup in the embodiment. The conditions for prohibiting pre-startup shown in Figure 4 are all conditions that may be met while the operator is involved with the work machine 1 for purposes other than starting the work machine 1, such as inspection and maintenance work on the work machine 1. Pre-startup is disabled when at least one of the conditions for prohibiting pre-startup is met. The conditions for prohibiting pre-startup are stored in a predetermined memory area or as control logic in the invalidation determination unit 141 of the invalidation interruption command device 140.

[0026] For example, pre-activation prohibition condition No. 1, "Door lock is unlocked (pre-activation condition No. 1 is not met)," indicates that the unlocked state of the door lock was detected when the door lock sensor 102b did not detect an unlocking operation of the cab 11 door (not shown) (pre-activation condition No. 1 is not met). Pre-activation prohibition condition No. 2, "Door is open (pre-activation condition No. 2 is not met)," indicates that the open state of the door was detected when the door opening / closing sensor 102a did not detect an opening operation of the cab 11 door (pre-activation condition No. 2 is not met).

[0027] While the pre-start prohibition conditions No. 1 and No. 2 mentioned above presuppose that the pre-start condition is met, it is not necessarily required that the pre-start condition be met. Pre-start may be disabled if the pre-start prohibition condition is met on its own.

[0028] Condition No. 3 for prohibiting pre-startup, "Pilot shut-off lever in release position (operated position)," indicates that the boarding prevention detection unit 102c has detected that the pilot shut-off lever is in the release position and is operating, preventing the operator from boarding the work machine 1. Condition No. 4 for prohibiting pre-startup, "Pre-startup deactivation instruction received from operator terminal," indicates that a pre-startup deactivation instruction has been received from the operator terminal via the on-board communication unit 102d. Condition No. 5 for prohibiting pre-startup, "Pre-startup deactivation operation on monitor," indicates that a pre-startup deactivation operation has been received from the operator via the monitor operation unit 102g and monitor 160.

[0029] Condition No. 6 for prohibiting pre-startup, "An operator is present near the inspection / maintenance cover," indicates that the inspection / maintenance cover opening / closing sensor 102f detected the opening and closing of the inspection / maintenance cover, thus determining that an operator is present near the inspection / maintenance cover. Condition No. 7 for prohibiting pre-startup, "The inspection / maintenance cover is in an open state," indicates that the inspection / maintenance cover opening / closing sensor 102f detected that the inspection / maintenance cover was in an open state. Condition No. 8 for prohibiting pre-startup, "An operator terminal held by an operator other than the one who previously started the work machine satisfies pre-startup conditions No. 3 and No. 4," indicates that the terminal position detection unit 102e received a pre-startup instruction from an operator terminal carried by an operator other than the one who previously started the work machine 1, and that this operator terminal is approaching a predetermined range of the work machine 1. Note that the pre-startup prohibition conditions are not limited to these.

[0030] Here, the pilot shut-off lever is a device that switches between allowing and prohibiting the operation of each hydraulic actuator that operates the work machine 1, and also physically prevents the operator from getting on or off the work machine 1. The pilot shut-off lever is a lever that can take either a locked position, which prohibits the operation of each hydraulic actuator that operates the work machine 1, or an unlocked position, which allows the operation of each hydraulic actuator that operates the work machine 1. In the unlocked position, the operator is physically prevented from getting on or off the work machine 1, and the engine of the work machine 1 is prohibited. On the other hand, in the locked position, the operator is allowed to get on or off the work machine 1. Therefore, the pilot shut-off lever is in the locked position when the operator is boarding the work machine 1. Also, the “inspection and maintenance cover” in Figure 4 is a cover that opens and closes to allow the operator to access the internal components and various instruments of the work machine 1, and is attached to the upper rotating body 12.

[0031] Returning to the explanation of Figure 2, the deactivation interruption command device 140 also interrupts pre-startup even if any of the pre-startup conditions (Figure 3) have been met and pre-startup is actually in progress, if the pre-startup interruption condition has already been met, depending on the output of the input device 102. For this reason, the deactivation interruption command device 140 outputs a pre-startup interruption command to the pre-startup command device 103. When the work machine 1 is in the process of pre-startup, the deactivation interruption command device 140 asks the operator whether it is necessary to interrupt pre-startup and notifies the operator by displaying on the monitor 160 that it will accept the interruption operation.

[0032] Figure 5 shows the conditions for interrupting pre-startup in the embodiment. The conditions for interrupting pre-startup shown in Figure 5, like the conditions for prohibiting pre-startup, are all conditions that may be met while the operator is involved with the work machine 1 for purposes other than starting the work machine 1, such as inspection and maintenance work on the work machine 1. If at least one of the conditions for interrupting pre-startup is met, the pre-startup that is in progress will be interrupted. The conditions for interrupting pre-startup are stored in a predetermined memory area or as control logic in the interruption command unit 144 of the invalidation interruption command device 140.

[0033] For example, pre-start interruption condition No. 1, "door locking operation," indicates that the door lock sensor 102b has detected the locking operation of the cab 11 door (not shown). Pre-start interruption condition No. 2, "pilot shut-off lever release operation (lever activated)," indicates that the boarding prevention detection unit 102c has detected that the pilot shut-off lever is in the unlocked position, preventing the operator from boarding the work machine 1.

[0034] The pre-start interruption condition No. 3, "Pre-start interruption operation on the monitor," indicates that a pre-start interruption operation has been received from the operator via the monitor operation unit 102g. The pre-start interruption condition No. 4, "Pre-start interruption instruction received from the operator terminal," indicates that the pre-start interruption instruction for the work machine 1, which was input and transmitted from the operator terminal to the operator, has been received by the on-board communication unit 102d.

[0035] The monitor operation unit 102g accepts operations for the prohibition condition No. 5 in Figure 4 and the interruption condition No. 3 in Figure 5 via the display of the monitor 160. During the pre-startup of the work machine 1, a display is output to the monitor 160 asking the operator whether it is necessary to interrupt the pre-startup, and based on the input via the monitor operation unit 102g to the display, the interruption condition No. 3 in Figure 5 is met. Also, when the work machine 1 is shut down, a display is output to the monitor 160 asking the operator whether it is necessary to disable the pre-startup, and based on the input via the monitor operation unit 102g to the display, the prohibition condition No. 5 in Figure 4 is met.

[0036] In this embodiment, the disabling of pre-startup based on the prohibition condition shown in Figure 4 and the interruption of pre-startup based on the interruption condition shown in Figure 5 both, in a broad sense, mean "disabling the execution of pre-startup control." Furthermore, the prohibition condition shown in Figure 4 and the interruption condition shown in Figure 5 are both, in a broad sense, "disabling conditions."

[0037] (Startup control process for the work machine 1 according to the embodiment) Figure 6 is a flowchart illustrating the startup control process of the work machine 1 according to this embodiment. The startup control process of the work machine 1 is performed periodically.

[0038] First, in step S11, the pre-start command device 130 determines whether the work machine control device 120 is stopped. If the work machine control device 120 is stopped (step S11 YES), the pre-start command device 130 moves to step S12, and if it is pre-started or in operation (step S11 NO), it moves to step S14.

[0039] In step S12, the pre-start command device 130 determines whether any of the pre-start conditions are met. If any of the pre-start conditions are met (step S12 YES), the pre-start command device 130 moves the process to step S13; if none of the pre-start conditions are met (step S12 NO), the process moves to step S14.

[0040] In step S13, the pre-start command device 130 outputs a pre-start command to the start device 110. When step S13 is completed, the pre-start command device 130 moves on to step S14.

[0041] In step S14, the interruption command unit 144 of the deactivation interruption command device 140 determines whether the work machine control device 120 is in the pre-startup state. The interruption command unit 144 moves the process to step S14 if the work machine control device 120 is in the pre-startup state (step S14 YES), and moves the process to step S18 if the work machine control device 120 is in operation (step S14 NO).

[0042] In step S15, the interruption command unit 144 displays a screen on the monitor 160 indicating that it is accepting the pre-start interruption operation, and puts the monitor operation unit 102g into a state where it is waiting for input from the operator. At this time, if the operator inputs an input for pre-start interruption on the monitor 160, the interruption command unit 144 accepts it via the monitor operation unit 102g.

[0043] In step S16, the interruption command unit 144 determines whether any of the pre-start interruption conditions are met. If any of the pre-start interruption conditions are met (step S16YES), the interruption command unit 144 proceeds to step S17; if none of the pre-start interruption conditions are met (step S16NO), the start control process for the work machine 1 is terminated.

[0044] In step S17, the interruption command unit 144 outputs an interruption command for the pre-start command device 130 to the pre-start command device 103. When step S17 is completed, the interruption command unit 144 terminates the start control process of the work machine 1.

[0045] In step S18, the deactivation determination unit 141 of the deactivation interruption command device 140 determines whether it is time to shut down the work machine 1. If it is time to shut down the work machine 1 (step S18 YES), the deactivation determination unit 141 moves the process to step S19, and if it is not time to shut down the work machine 1 (step S18 NO), it moves the process to step S20.

[0046] In step S19, the deactivation determination unit 141 displays a screen on the monitor 160 for accepting the pre-startup deactivation operation and puts the monitor operation unit 102g into a state waiting for input from the operator. At this time, the interruption command unit 144 accepts the input of the pre-startup deactivation operation from the operator on the monitor 160 via the monitor operation unit 102g. When step S19 is completed, the deactivation determination unit 141 moves the process to step S20.

[0047] In step S20, the deactivation determination unit 141 determines whether any of the pre-activation prohibition conditions are met. If any of the pre-activation prohibition conditions are met (step S20YES), the deactivation determination unit 141 moves the process to step S21; if none of the pre-activation prohibition conditions are met (step S20NO), the process moves to step S22.

[0048] In step S21, the timing unit 143 determines whether a predetermined time has elapsed since the most recent prohibition condition was met. The timing unit 143 measures the elapsed time since the most recent prohibition condition was met. If the elapsed time since the most recent prohibition condition was met has exceeded the predetermined time (step S21 YES), the timing unit 143 moves to step S22, and if the elapsed time is less than the predetermined time (step S21 NO), it moves to step S23.

[0049] In step S22, the deactivation command unit 142 stops issuing a deactivation command for pre-start to the pre-start command device 130. That is, if a deactivation command is not currently being output, it does not output a deactivation command, and if a deactivation command is already being output, it stops outputting the deactivation command. On the other hand, in step S23, the deactivation command unit 142 outputs a deactivation command for pre-start to the pre-start command device 130. That is, if a deactivation command is not currently being output, it starts outputting a deactivation command, and if a deactivation command is already being output, it maintains outputting the deactivation command. When step S22 or S23 is completed, the deactivation command unit 142 terminates the start control process of the work machine 1.

[0050] In the above-described embodiment, the work machine control device 120, the pre-start command device 130, and the deactivation interruption command device 140 were considered to be separate devices in the system configuration of the work machine 1. However, the system is not limited to this, and the integration and distribution of the work machine control device 120, the pre-start command device 130, and the deactivation interruption command device 140 may be performed in any combination.

[0051] (Effects of the embodiment) In the above embodiment, the execution of pre-starting, which starts a part of the work machine in advance, is interrupted when the interruption condition is met, or pre-starting is disabled so that pre-starting is not performed even if the pre-starting condition is met, based on the fulfillment of the prohibition condition. Therefore, according to this embodiment, pre-starting can be promptly interrupted as needed to shut down the work machine, or pre-starting can be prevented against the operator's intention.

[0052] Furthermore, in this embodiment described above, if the locking of the door leading to the room of the work machine or the operation of the pilot shut-off lever (the lever being in the release position) is detected, the execution of pre-start is interrupted. Therefore, according to this embodiment, for example, if the operator locks the door and operates the pilot shut-off lever to leave the work machine, the execution of pre-start can be interrupted, thereby preventing meaningless pre-starts.

[0053] Furthermore, in this embodiment described above, interruption instructions are directly input to the work machine (pre-start command device) via an operator terminal or monitor control unit. Therefore, according to this embodiment, for example, when attempting to perform inspection or maintenance work while the work machine (pre-start command device) is pre-starting, the trouble of starting the work machine (pre-start command device) once and then stopping it completely can be eliminated. In the conventional technology, in order to completely stop the work machine during pre-startup, it was necessary to first fully start the work machine using the start switch and then perform a shutdown operation. In contrast, in this embodiment, this unnecessary procedure can be avoided, and the work machine can be efficiently stopped completely from the pre-startup stage.

[0054] Furthermore, in this embodiment described above, if the unlocking or opening of the door leading to the interior of the work machine, or the operation of the pilot shut-off lever (the lever being in the release position) is detected, the pre-start function is disabled. Therefore, according to this embodiment, for example, if an operator unlocks or opens the door, or operates the pilot shut-off lever and is about to board the work machine, the pre-start function can be disabled, thereby preventing unnecessary pre-starts.

[0055] Furthermore, in this embodiment described above, a deactivation instruction is directly input to the work machine (pre-start command device) via the operator terminal or monitor control unit. Therefore, according to this embodiment, it is possible to prevent the work machine (pre-start command device) from being pre-started unintentionally while the operator is located inside or around the work machine for purposes other than operation, such as performing inspection or maintenance work on the work machine (pre-start command device).

[0056] Furthermore, in this embodiment described above, if the presence of an operator terminal is detected near the inspection / maintenance cover, or if the inspection / maintenance cover is detected to be open, the pre-start function is disabled. Therefore, according to this embodiment, it is possible to prevent the work machine (pre-start command device) from being pre-started unintentionally while inspection / maintenance work is being performed on the work machine (pre-start command device).

[0057] Furthermore, in this embodiment described above, when a deactivation instruction is received from an operator terminal different from the one carried by the operator who started the work machine in the previous instance, and it is detected that this operator terminal is approaching the work machine, the pre-start function is deactivated. Therefore, according to this embodiment, it is possible to prevent pre-start from being performed by mistake due to the approach of an operator other than the legitimate operator of the work machine.

[0058] Furthermore, in this embodiment described above, the disabling of pre-startup is stopped when a predetermined time has elapsed since the disabling condition was met. Therefore, according to this embodiment, pre-startup can be performed at an appropriate frequency while preventing unnecessary pre-startup.

[0059] Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the embodiments described above, and various design modifications can be made without departing from the spirit of the invention as described in the claims. For example, the embodiments described above are described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described. Furthermore, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add a configuration from another embodiment to the configuration of one embodiment. Moreover, it is possible to add, delete, or replace a part of the configuration of each embodiment with a configuration from another embodiment. [Explanation of Symbols]

[0060] 1: Work machine, 11: Cab, 102: Input device, 102a: Door open / close sensor, 102b: Door lock sensor, 102c: Boarding prevention detection unit, 102d: Onboard communication unit, 102e: Terminal position detection unit, 102f: Inspection / maintenance cover open / close sensor, 102g: Monitor operation unit, 102h: Operator terminal identification unit, 103: Pre-start command device, 110: Start device, 120: Work machine control device, 130: Pre-start command device, 140: Deactivation interruption command device, 150: Control device, 160: Monitor.

Claims

1. A start instruction device that outputs a start instruction to start a stopped work machine in response to an operation by an operator, A startup system for a work machine comprising: a control device that performs pre-start control to start a portion of the work machine in a stopped state in advance if pre-start conditions are met prior to the output of a start instruction from the start instruction device; The control device is If the deactivation condition is met, the execution of the pre-start control is deactivated and the stopped state of a part of the work machine is maintained. A starting system for industrial machinery characterized by the following:

2. The control device is When the execution of the aforementioned pre-start control is disabled, if the start instruction is input from the start instruction device, the work machine is started from the stopped state. A starting system for a work machine as described in feature 1.

3. The control device is If the invalidation condition is met while the pre-start control is being executed, the execution of the pre-start control is interrupted and the execution of the pre-start control is disabled. A starting system for a work machine as described in feature 1.

4. The control device is If the disabling condition is met when the pre-start control has not been executed, the pre-start control will not be executed even if the pre-start condition is met. A starting system for a work machine according to feature 2 or 3.

5. The machine further includes a door lock sensor that detects the locking and unlocking of the door to the operator's cab of the aforementioned machine, The aforementioned deactivation condition is that the door has been locked from an unlocked state. The control device is If the door lock sensor detects that the door has been locked from an unlocked state while the pre-start control is being executed, the pre-start control is interrupted. The starting system for the work machine according to feature 3.

6. The system further includes a boarding / alighting deterrent detection unit that detects the operation and non-operation of a boarding / alighting deterrent device that prevents operators from boarding or alighting the aforementioned work machine, The aforementioned deactivation condition is the activation of the passenger boarding / alighting restraint device. The control device is If the boarding / alighting prevention device is detected to be activated by the boarding / alighting prevention detection unit during the execution of the pre-start control, the execution of the pre-start control is interrupted. The starting system for the work machine according to feature 3.

7. It further includes an input receiving unit that receives input from an operator, The aforementioned deactivation condition is that an interruption instruction to interrupt the execution of the pre-start control has been input to the input receiving unit. The control device is If the interruption instruction is input to the input receiving unit while the pre-start control is being executed, the execution of the pre-start control is interrupted. The starting system for the work machine according to feature 3.

8. The machine further includes a door lock sensor that detects the locking and unlocking of the door to the operator's cab of the aforementioned machine, The deactivation condition is that, when any of the pre-activation conditions other than the door being unlocked from a locked state is met, the door is unlocked from a locked state. The control device is When the pre-start control, based on the fulfillment of any pre-start condition other than the door being unlocked from a locked state, is not executed, and the door lock sensor detects that the door has been unlocked from a locked state, the pre-start control is not executed. The starting system for the work machine according to feature 4.

9. The machine further includes a door opening / closing sensor that detects the opening and closing of the door to the operator's cab of the aforementioned machine, The deactivation condition is that, when any of the pre-activation conditions other than the door being opened from a closed state is met, the door is opened from a closed state. The control device is When the pre-start control based on the pre-start conditions other than the door being opened from the closed state has not been executed, and the door opening / closing sensor detects that the door has been opened from the closed state, the pre-start control is not executed. The starting system for the work machine according to feature 4.

10. The system further includes a boarding / alighting deterrent detection unit that detects the operation and non-operation of a boarding / alighting deterrent device that prevents operators from boarding or alighting the aforementioned work machine, The aforementioned deactivation condition is the activation of the passenger boarding / alighting restraint device. The control device is When the aforementioned pre-start control is not being executed, if the boarding prevention detection unit detects the operation of the boarding / alighting prevention device, the pre-start control is not executed. The starting system for the work machine according to feature 4.

11. It further includes an input receiving unit that receives input from an operator, The aforementioned deactivation condition is that a deactivation instruction has been input to the input receiving unit, which disables the pre-start control and prevents it from being executed. The control device is When the aforementioned pre-start control has not been executed, if the invalidation instruction is input to the input receiving unit, the pre-start control will not be executed. The starting system for the work machine according to feature 4.

12. It further includes a terminal position detection unit that detects the terminal position of an operator terminal carried by an operator, The aforementioned deactivation condition is that the operator terminal is located near the inspection / maintenance cover of the work machine, which is opened and closed when inspecting or maintaining the work machine. The control device is If the terminal position detection unit detects that the operator terminal is located near the inspection / maintenance cover while the pre-start control is not being executed, the pre-start control will not be executed. The starting system for the work machine according to feature 4.

13. The system further includes an inspection / maintenance cover opening / closing sensor that detects the opening and closing of an inspection / maintenance cover for the aforementioned work machine, which is opened and closed when inspecting or maintaining the said work machine. The aforementioned deactivation condition is that the inspection and maintenance cover is in an open state. The control device is When the aforementioned pre-start control is not executed, and the inspection / maintenance cover opening / closing sensor detects that the inspection / maintenance cover is in an open state, the pre-start control is not executed. The starting system for the work machine according to feature 4.

14. A terminal position detection unit that detects the terminal position of an operator terminal carried by an operator, It further includes an operator terminal identification unit that identifies the operator terminal, The aforementioned deactivation condition is that a pre-start instruction to start the work machine is received from an operator terminal different from the operator terminal carried by the operator who last started the work machine, and that the other operator terminal is approaching within a predetermined range of the work machine. The control device is If the pre-start control is not executed, and the pre-start instruction is input from another operator terminal identified by the operator terminal identification unit as being different from the operator terminal carried by the operator who started the work machine, and the terminal position detection unit detects that the operator terminal is approaching within a predetermined range of the work machine, the pre-start control is not executed. The starting system for the work machine according to feature 4.

15. The control device is The elapsed time since the aforementioned invalidation condition was met is measured, When the elapsed time reaches a predetermined time, the pre-start control is executed if the pre-start condition is met. The starting system for the work machine according to feature 4.

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