JP2015124514A - Vehicle system construction machine interlock system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an operation by a wrong operator by specifying and confirming an operator of a heavy machine, to certainly execute an inspection before start-up, and to secure safety by stopping an engine in leaving of the operator.SOLUTION: A vehicle system construction machine interlock system consists of: a portable information terminal for performing control such as inspection processing, start-up, and stop of a heavy machine; a control device which is loaded on the heavy machine, performs communication with the information terminal, and controls actuation of the heavy machine by an instruction from the information terminal; and a management server which is installed at a place distant from the information terminal and the control device, and collects state management records and operation history of the heavy machine, in which a heavy machine safety management system is installed in the information terminal, specification and authentication of an operator who operates the heavy machine, and an inspection work of the heavy machine before start-up are performed by starting the heavy machine safety management system, a start instruction signal is transmitted from the information terminal to the control device when the inspection before start-up is performed, and the control device makes an ignition switch of the heavy machine operable.

Description

  The present invention relates to a vehicle construction machine interlock system for safely using a vehicle construction machine such as a hydraulic excavator and a bulldozer equipped with a crawler device and a wheel device capable of traveling in a construction site.

  The types of fatal accidents that occur at construction sites are: (1) crash / fall accidents, (2) heavy machinery vehicle disasters such as construction machinery and cranes, and (3) collapse / collapse disasters. It accounts for about two-thirds, and is said to be one of the three major disasters in the construction industry. Among these three major disasters, it is an urgent issue to prevent a heavy machinery vehicle disaster.

  In general, since construction work is carried out in parallel by a vehicle construction machine and a worker in a closed space, a so-called safety management system has been introduced at the construction site, and various methods and proposals have been made.

  In order to prevent contact between the vehicle construction machine and workers at the construction site, it is common practice to place a dedicated monitor at the construction site and proceed with work while confirming safety. Constantly monitors the movement of construction machines and workers using sensors such as lasers and ultrasonics, and when the construction machine and worker's work area obtained by the sensors approaches within a preset range, For example, Patent Document 1 proposes an alarm system that issues an alarm.

  In addition, in order to use vehicle construction machinery safely, inspection of vehicle construction machinery used for construction work is required before starting work. Usually, inspections of engines, inspections of various work devices, etc. are carried out, and the results are recorded. It has been done to manage. Such inspection work and inspection result recording work are time-consuming and troublesome for the operator. As a conventional technology, in order to simplify the inspection work and the inspection result recording work, each time the vehicle power key is turned on, each part is inspected and the abnormal content is displayed on the display, and the start inspection result is displayed. A vehicle management system for recording on a card is proposed in Patent Document 2.

  Furthermore, if the vehicle construction machine is operated by a person other than a legitimate operator or a person other than a skilled operator, an unexpected movement occurs in the vehicle construction machine, which may be in a dangerous state. Therefore, in order to prevent the engine of the construction machine from being started by a person other than a legitimate operator, a ten-key input device is provided in the cab of the construction machine, and a specific password is entered by the ten-key input device to start the engine. Patent Document 3 proposes a locking device for a construction machine that releases a locked state.

JP 2009-193494 A Japanese Patent Laid-Open No. 03-197261 JP 09-050584 A

  By the way, work using vehicle construction machines is basically done based on work procedure manuals and work plans, but in regular work, the division of roles including operators becomes ambiguous, and pre-work inspections are It is easy to fall into a situation where it becomes a corpse. In particular, (1) operation of heavy machinery by unqualified personnel, (2) pre-start inspection only for type 3, (3) the behavior of workers leaving the construction machine with the engine running as a problem specific to the construction industry It has been pointed out.

(1) Operation of heavy machinery by unqualified personnel Many vehicle-related construction machines have similar operation systems, and even unqualified personnel can operate to some extent, so accidents due to unqualified personnel driving frequently occur. . At the construction site, the operator is selected and operated, but it is difficult to recognize that all heavy machinery is driven by qualified personnel. In this case, even if the construction machine lock device of Patent Document 3 is used, if the unqualified person is taught the password, the construction machine can be operated by the unqualified person.
(2) Pre-start inspection of only the shape Operators often hesitate to inspect construction machinery, and in many cases, they do not actually inspect, but only prepare an inspection form. It is difficult to recognize that pre-start inspections have been performed reliably for all heavy machinery. In this case, even if it corresponds with the vehicle management system of patent document 2, since it cannot utilize for the human inspection location by an operator, it cannot be determined whether the inspection was performed.
(3) Behavior of workers leaving the construction machine with the engine running After the worker leaves the heavy machinery without turning off the heavy machinery engine for a short time and with a light feeling, the heavy machinery may run away. . Considering the recent increase in environmental protection in order to prevent the occurrence of accidents, it is necessary to stop the engine reliably when the worker leaves the heavy machinery. However, the worker stopped the engine for all heavy machinery. It is practically difficult to recognize this. In this case, the alarm system of Patent Document 1 is not effective for unmanned construction machines.

  If such a worker's action is left in a manner and left unattended, a serious disaster may be caused by work by a person other than the nominated operator, unscheduled work, or unexpected operation of the construction machine. Therefore, realistic and reliable safety management is required.

  The present invention solves such a conventional problem, and identifies and confirms the worker designated for each vehicle-type construction machine, thereby preventing the operation of the construction machine by an unqualified person, By confirming that the pre-start inspection was carried out by an operator designated for each vehicle construction machine, it was possible to prevent pre-start inspection only for the shape, and the worker from the construction machine with the engine running The purpose of this is to recognize when a person leaves the office, stop the engine, and prevent the construction machine from running away.

In order to achieve the above object, the present invention captures an application in a portable information terminal typified by a smart phone and cooperates with a vehicle construction machine so that an operator designated in a work plan performs a predetermined procedure. A vehicle construction machine interlock system that does not start unless it is built. To express the present invention more specifically,
1) The nominated operator uses the photo function to check the pre-start inspection items incorporated in the smartphone. In order to obtain the reliability of the photograph, a technique such as installing a two-dimensional barcode on the heavy machinery part corresponding to the inspection item is adopted.
2) Perform fingerprint authentication or face authentication using an application built into the smartphone to check whether the subject is a designated operator.
The above inspections and confirmation actions are carried out in both 1) and 2) at the start of work, and when heavy machinery is restarted on the same day, qualified personnel who have been assigned roles in the field in 2) ensure that work is performed. It is a lock system.

  In addition, the operator's confirmation of seating is performed by short-range wireless communication such as Bluetooth (registered trademark, the same applies hereinafter) on the portable information terminal and the heavy equipment side. In addition, if the inspection data performed by the portable information terminal is automatically transmitted to the server by e-mail, wireless LAN communication, etc., the trouble of collecting and checking the inspection table is eliminated, and the inspection table is being recovered. For this reason, it is possible to eliminate the situation where inspection is not performed.

With the above configuration, the present invention can achieve the following effects.
(1) Work by an operator appointed based on a work plan can be performed.
(2) Eliminate accidents caused by unscheduled work or work not approved by the site.
(3) By ensuring that the operator performs inspections, it is possible to detect maintenance defects early, raise safety awareness, and maintain a safe construction cycle that tends to form.
(4) The management of daily and monthly reports can be simplified.

1 is a block diagram schematically showing an overall configuration of a vehicle construction machine interlock system according to an embodiment of the present invention. It is a block diagram which shows the structure of the information terminal used for the said embodiment. It is a block diagram which shows the structure of the control apparatus used for the said embodiment. It is a flowchart explaining the operation operation procedure of the heavy machinery in the said embodiment. It is a figure explaining the processing content by the side of the information terminal in each process step shown by FIG. 4 in the said embodiment. FIG. 5 is a flowchart illustrating a processing procedure on the control device side after a heavy machine starting process (step S3) in each step shown in FIG. 4 in the embodiment.

  Next, embodiments and operations of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a block diagram schematically showing an overall configuration of a vehicle construction machine interlock system (hereinafter simply referred to as “interlock system”) of the present invention. In FIG. 1, reference numeral 1 denotes an information terminal that is owned by a driver of a vehicle system construction machine (hereinafter referred to as “heavy machinery”) 3 and performs control such as inspection processing and start / stop of the heavy machinery 3. As the information terminal 1, for example, a mobile information terminal such as a smartphone, a mobile phone, or a tablet terminal is used. Reference numeral 2 denotes a control device that can communicate with the information terminal 1 and controls the operation of the heavy machine 3 according to an instruction from the information terminal, and is mounted on the heavy machine 3 such as the bulldozer shown in FIG. Other heavy equipment 3 includes an excavator, a road roller, a backhoe, and the like. A management server 4 is installed in the office of the construction site or other place and collects state management records and operation histories of heavy machinery.

  A heavy machine safety management system is installed in the information terminal 1, and the heavy machine safety management system is activated to perform inspection work before starting heavy machinery. Communication between the information terminal 1 and the control device 2 is possible. When the information terminal 1 performs an inspection before starting heavy machinery, an inspection confirmation signal or a start command signal is sent from the information terminal 1 to the control device 2. Thus, the control device 2 controls the operation of the ignition switch of the heavy machine and controls the cutting of the engine switch of the heavy machine 3. In particular, in the present embodiment, an inspection confirmation signal or a start command signal is sent from the information terminal 1 to the control device 2 only when the pre-start inspection of heavy equipment is performed on the information terminal 1 side and this is confirmed. It has become. A cloud server or the like is used as the server 4, and inspection book data, driver (qualification) data, and the like can be stored and managed in a cloud server installed (or set) in an office or center.

  FIG. 2 is a block diagram showing a configuration of the information terminal 1 shown in FIG. In FIG. 2, 11 is an operation unit for inputting various instructions for safety management operations, 12 is a storage unit for storing various applications (software) and data for safety management processing, and 13 is information for management processing. Alternatively, a display unit for displaying processing results, 14 for an image capturing unit for capturing driver information of the heavy equipment 3 as an image, and 15 for performing a communication operation between the information terminal 1, the control device 2 and the management server 4. The communication unit 16 is a control unit that controls the operation of each functional unit and performs various arithmetic processes.

  The operation unit 11 is configured by a data input device such as a touch panel or a voice input microphone, and commands and data necessary for various processing operations in the control unit 16 are input. From the operation unit 11, check data in the pre-start inspection work is input. The storage unit 12 includes a read-only memory (ROM) in which various programs are stored and a random access memory (RAM) in which data is written and read during processing operations. used. The display unit 13 is composed of a liquid crystal or other display device, and displays a data sheet for a check before starting work or various status information during operation of the interlock system. The imaging unit 14 is composed of a camera device, and captures not only objects and landscapes, but also image information for identifying the driver so as to correspond to the interlock system of the present invention, for example, fingerprints of fingers or a driver's face. Do. The communication unit 15 is composed of a device capable of short-range communication such as Bluetooth, and notifies the control device 2 of the heavy machinery 3 of the result of the pre-start inspection, or the driver's ID information and driving status information (for example, away from the seat). Information). The control unit 16 is composed of a microcomputer and the like, executes pre-start inspection check processing, determines the creation state of the pre-start inspection check data sheet, and reports the result to the server. Further, it controls the operation of transmitting a start command for the heavy machine 3 to the control device 2 and receiving data related to the operation status of the heavy machine 3.

  FIG. 3 is a block diagram showing the configuration of the control device 2 shown in FIG. In FIG. 3, reference numeral 20 denotes an operation unit for inputting driver information of the heavy machinery 3 and various setting information for heavy machinery operation, and 21 denotes an application and data for safety management processing on the heavy machinery 3 side. 22 is a communication unit for performing a communication operation between the control device 2 and the information terminal 1, and 23 is attached to a heavy equipment driver seat or the like to detect a driving situation (for example, a person away from the driver). The sensor 24 is a control unit that controls the operation of each functional unit and performs various arithmetic processes.

  The operation unit 20 includes data input means such as a numeric keypad and a liquid crystal button, and data necessary for various processing operations in the control unit 16 is input. From this operation unit 20, an ID and setting information as driver information are input. The storage unit 21 has a read only memory (ROM) in which various programs necessary for the control processing operation are stored and a random access memory (RAM) in which data is written and read during the control processing operation. Memory is used as needed. The communication unit 22 includes a device capable of short-range communication such as Bluetooth corresponding to the communication unit 15 on the information terminal 1 side, receives a result of a pre-start inspection from the information terminal 1, and transmits a situation during operation of the heavy equipment 3 To do. The control unit 23 is composed of a microcomputer or the like, and receives the result of the pre-start inspection from the information terminal 1 to turn on the ignition switch of the heavy machine 3 or determines whether the driver is away while the heavy machine 3 is in operation. Or turn it off.

  The operation in the interlock system having the above configuration will be described.

A. Operation Procedure for Heavy Equipment FIG. 4 is a flowchart for explaining an operation operation procedure for the heavy equipment 3. As shown in FIG. 4, when starting work such as civil engineering work, software for safety management processing is launched in the information terminal 1 (step S1). When starting up the software, a code for identifying the heavy machine 3 to be inspected is input, and various information such as the type of the heavy machine 3 is specified. Next, a pre-start inspection is performed on the heavy machinery 3 (step S2). When the pre-start inspection is completed, the heavy machine 3 is activated (step S3), the driver's seating confirmation is then performed, and an idling state is set (step S4).

B. Operation Procedure of Information Terminal FIG. 5 is a diagram for explaining processing contents on the information terminal 1 side in each step shown in FIG. When the software is started in step S1, the heavy equipment safety confirmation system is activated, and a message 31 and a number input box for instructing the heavy equipment number input as shown in FIG. 5 (a) on the display unit 13 of the information terminal 1. 32 and a numerical table 33 for selecting a number to be input are displayed. When the heavy equipment number is input by the operator (heavy equipment driver) of the information terminal, data 34 such as the type of the selected heavy equipment 3 as shown in FIG. 5B is displayed on the display unit 13 of the information terminal 1. Then, a message 35 for selecting and instructing the type of safety management processing work, and work items 36, 37, and 38 are displayed. The work item 36 is an item for selecting the pre-start inspection of the heavy equipment 3, the work item 37 is an item for selecting the operation of the heavy equipment 3, and the work item 38 is an item for selecting maintenance of the heavy equipment 3.

  When “pre-start inspection” is selected as the work type selection process, a pre-start inspection table (format) as shown in FIG. 5C is displayed on the display unit 13 of the information terminal 1. . This table includes the title 39 “Pre-work inspection”, inspection items (8 items shown in FIG. 5 (c)) 40, and a check entry section that indicates that each inspection item 40 has been inspected. 41, a camera check entry section 42 for indicating that authentication photography has been performed by the camera, and a transmission button 43 for transmitting inspection table data after the inspection is completed. While the check entry unit 41 is provided corresponding to all the inspection items 40, the camera check entry unit 42 checks whether or not an especially important item among inspection items is actually inspected. Are provided corresponding to the inspection items 40 of the part. In the pre-start inspection process, all inspection items 40 are inspected, and each inspection item 40 is entered from the operation unit 11 into the check entry unit 41. Further, for the inspection item 40 to which the camera check entry unit 42 is attached, the imaging part 14 is further imaged using the imaging unit 14, and the obtained image data is stored in the storage unit 12, while the control unit 16 The determination is made and entry into the camera check entry section 42 is performed. For example, in FIG. 5C, when the inspection item No. 3 is the inspection content “the amount of engine oil is sufficient”, not only engine oil inspection but also imaging of the engine is performed and The process is executed. In this case, a two-dimensional bar code is attached to the image pickup portion of the engine, and “the amount of engine oil is sufficient”, which is the third inspection item, by imaging this two-dimensional bar code. Inspection execution data indicating that the camera has been inspected is acquired, and a check mark is added to the camera check entry section 42 of the inspection item.

  When all the inspection items 40 are inspected, the transmission button is operated, and inspection table data after the inspection is completed is transmitted from the communication unit 15. The inspection table data after completion of the inspection is transmitted to the control device 2 and the management server 4. Transmission to the management server 4 is performed by mail, wireless LAN communication, or the like. This eliminates the trouble of collecting and checking the inspection table, and can eliminate the situation in which the inspection is not performed because the inspection table is being collected. When the control device 2 receives the inspection table data sent from the information terminal 1 by the communication unit 22, it determines whether or not the pre-start inspection for the heavy equipment 3 has been performed reliably, and when it is determined that the inspection has been performed reliably Only the ignition switch of the heavy machine 3 can be electrically turned on. In addition, you may perform determination of whether the inspection before a start was performed reliably in the control part 16 of the information terminal 1. FIG. The pre-start inspection (step S2) for the heavy machinery 3 using the information terminal 1 is completed by the above processing.

  Next, the heavy machine starting process (step S3) is started. In this processing step, an activation command, that is, an engine trigger is transmitted from the information terminal 1 to the control device 2 through the communication unit 15. Then, an image of the heavy equipment operation mode appears on the display unit 13 of the information terminal 1. FIG. 5D shows the heavy equipment operation mode A. This is an initial image in the heavy equipment operation mode. As shown in this figure, a message display section 43 and a touch section 44 where the driver's fingers are brought into contact appear on the display unit 13. In the message display section 43, the message “I am communicating with heavy machinery (Step S11)” and “I have confirmed that the pre-start inspection has been performed (Step S12)” in accordance with the transmission of the inspection table data after completion of the above inspection. A message is displayed informing the driver of the results of the pre-work inspection. Thereafter, a driver authentication process is executed. For this purpose, the message “Perform fingerprint authentication (step S13)” is displayed on the display unit 13, and when the driver's finger is brought into contact with the touch section 44, a fingerprint image is collected and the driver is identified. When the driver is specified, a message “Driver has been specified (Step S14)” and a message “Heavy equipment is ready to operate (Step S15)” are displayed in the message display section 43. As a result, it is recognized that the heavy machinery can be operated. Note that a method such as face authentication or voice authentication may be employed instead of fingerprint authentication.

  FIG. 5E shows the heavy machinery operation mode B. This heavy machine operation mode B is a mode display that appears following the heavy machine operation mode A, and they are in a continuous relationship. Incidentally, the heavy equipment operation mode C (described later) shown in FIG. 5F is also a mode display that appears after the heavy equipment operation mode B, and the heavy equipment operation modes A to C are in a continuous relationship. As shown in FIG. 5 (e), when the driver is seated in the driver's seat of heavy equipment 3 based on the message “Heavy equipment is ready” in step S15, the sensor 23 detects the seating in the control device 2 and confirms the seating. When the driver further turns on the key, the engine of the heavy machine 3 starts operating and enters an idling state (step S4 in FIG. 4). The start of the engine is notified from the control device 2 to the information terminal. In the information terminal 1, the control unit 16 recognizes the start of the engine and displays a message “Engine operation has been authenticated (step S16)” in the message display section 43. Is done. While the engine is operating (that is, when the heavy machinery 3 is in operation), the control unit 16 performs the absence confirmation process at a predetermined time interval. (Step S17) "message is displayed in the message display section 43. In the absence confirmation process, the sensor 23 of the control device detects whether or not the driver is seated in the seat of the heavy equipment 3, and the control unit 24 determines the detection signal, and the determination result is sent to the information terminal. Send. Alternatively, apart from such processing operations, utilizing the fact that communication between the information terminal 1 and the control device 2 is performed by a short-range communication means such as Bluetooth, the absence confirmation is confirmed by the communication operation between the two. May be performed. That is, since communication is performed between the information terminal 1 and the control device 2 by the short distance communication function, communication is not possible if the driver goes out of the communication range (for example, 5 to 8 meters) of the short distance communication function. It becomes possible, and the driver's absence confirmation can be performed using this phenomenon. By performing the absence check, the heavy machine 3 can be prevented from running away.

  FIG. 5 (f) represents the heavy equipment operation mode C. In this heavy equipment operation mode C, the above-described absence confirmation process is continuously executed, and when it is determined that the driver is not seated during the process, “separation confirmation: being away (step S18). Is displayed in the message display section 43. When the control unit 16 of the information terminal 1 receives the determination result that the driver is not seated, it starts the control operation for stopping the engine, and the message display section 43 “stops heavy equipment operation (step S19) "message is displayed. Concurrently with this, the control unit 16 transmits an engine stop command to the control device 2. When the control unit 24 of the control device 2 receives the engine stop command, it sends a disconnect signal to the engine switch to stop the engine. The engine stop information is sent to the information terminal 1, and the control unit 16 displays a message “engine stop recognized (step S20)” in the message display section 43 based on the engine stop information. The engine stop also occurs when the driver interrupts the work or when the ignition switch is turned off after finishing the work for one day. Even in this case, the engine stop information is sent from the control device 2 to the information terminal 1, and the control unit 16 sends a message “Engine stop recognized (step S20)” to the message display section 43 based on the engine stop information. Is displayed.

C. Heavy Equipment Activation Process Procedure FIG. 6 is a flowchart for explaining the processing contents on the control device 2 side after the heavy machine activation process (step S3) in each step shown in FIG. When the heavy equipment start-up process is started in step S3, a start command is transmitted from the information terminal 1 to the control device 2, and the control device 2 receives this start command (step S41). Next, the control unit 24 checks whether or not the driver is a set person based on data obtained by means such as fingerprint authentication (step S13) performed on the information terminal 1 side (step S42). . If it is determined by the driver check operation that the driver is not a set person, an error message response is sent to the information terminal 1 without unlocking by the control device (step S43), while the driver is set. If it is determined that the person is a person, the driver identification is notified to the information terminal 1 (step S14 is executed), and it is also checked whether all the inspection tables created in the pre-start inspection process are acceptable (step S44). ). If it is determined by the check table check operation that all check tables are not acceptable (at least part of the check table is unacceptable), an error message response is sent to the information terminal 1 without unlocking by the control device (step S45). On the other hand, if it is determined that all the inspection tables are acceptable, the lock is released by the control device (step S46), and the information terminal 1 is notified that the heavy equipment 3 can be started (step S15 is executed). When the driver turns the key on to start the engine of the heavy machinery 3, the sensor 23 detects this engine start and notifies the information terminal 1 from the control device 2 (executes step S16).

  While the engine of the heavy equipment 3 is operating, the driver's absence confirmation is performed between the information terminal 1 and the control device 2. In the absence confirmation processing operation, a confirmation signal is transmitted from the information terminal 1 to the control device 2, and the control device 2 waits for reception of the confirmation signal from the information terminal 1 (step S47). Next, on the control device 2 side, the control unit 24 checks whether or not a confirmation signal has been received by the own device (step S48). 1 is notified of the reception of the confirmation signal (step S17 is executed), and the process returns to step S47. This repeated processing operation from step 47 to step 48 is repeated every few minutes while the heavy machinery 3 is operating normally. If the confirmation signal is not received in the own device in step S48, the control unit 24 determines that the driver has left the seat and sends a leave notice to the information terminal 1 (executes step S18). Further, the control unit 24 shuts off the engine switch of the heavy machine 3 and stops the engine (step S49). The engine switch shut-off operation and the engine stop operation are notified to the information terminal 1 by the control unit 24, and the information terminal 1 performs the processes of steps S19 and S20.

  With the above operation, the heavy machinery 3 is operated after the pre-work inspection is performed, and even if the driver leaves the seat while moving, this is detected and the engine is automatically stopped. Is prevented.

  According to the present invention, it is possible to operate and operate heavy machinery by an operator appointed based on a work plan, and the operator can perform inspection to ensure early detection of maintenance defects and ensure safety, and It is useful because it prevents the malfunction of heavy machinery due to leaving the seat inside.

1 Information Terminal 2 Control Device 3 Heavy Equipment (Vehicle Construction Machinery)
4 management server 11, 20 operation unit 12, 21 storage unit 13, display unit 14, imaging unit 15, 22 communication unit 16, 24 control unit 23 sensor 32 number input box 33 numerical value table 41 check entry unit 42 camera check entry unit 43 send button 44 Touch section

Claims (4)

A portable information terminal for carrying out inspection processing of vehicle construction machines (heavy machinery), and control such as starting and stopping;
A control device that is mounted on a heavy machine and communicates with the information terminal, and controls the operation of the heavy machine according to an instruction from the information terminal;
A management server that is installed at a location away from the information terminal and the control device and collects state management records and operation histories of heavy equipment, and
A safety management system for heavy machinery is installed in the information terminal, and the heavy machinery safety management system is activated to identify and authenticate the driver who operates the heavy machinery, and to check the heavy machinery before starting work,
When the pre-start inspection is performed, a start command signal is sent from the information terminal to the control device, and the control device enables the ignition switch of the heavy equipment.
Vehicle construction machine interlock system characterized by the above.   The information terminal is provided with an imaging means, and in the inspection before the start of work, code information is attached to the inspection location for a specific inspection item, and this code information is imaged by the imaging means to obtain inspection execution data, The vehicle system construction machine interlock system according to claim 1, wherein the inspection location is inspected.   The communication between the information terminal and the control device is performed by a short-range communication function, and the driver's absence confirmation is performed using a communication range of the short-range communication function. Interlock system for vehicle construction machinery.   2. The vehicle system construction machine interlock system according to claim 1, wherein the driver authentication is performed by fingerprint authentication or face authentication using an imaging means.

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