JP2006045958A - Operation management system and operation management method for working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To rapidly and easily release a system lock for the theft prevention of a working machine. <P>SOLUTION: A password inputted from an input part 41 is compared with a password stored in a password storage part 43, and when the valid password is inputted, the working machine 1 is put in the operating state. When the invalid password is inputted once or more times, the system lock of the working machine 1 is performed. At this time, a management server 2 is informed to the effect, and the management server 2 informs a communication terminal 3 of an operator with a legal right corresponding to the working machine 1 registered to himself, of the valid password. The operator inputs the valid password displayed on a screen of the communication terminal 3, to release the system lock. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an operation management system and an operation management method for a work machine that prevent the work machine such as a hydraulic excavator from being stolen.

In recent years, various measures have been taken to prevent the theft of work machines such as hydraulic excavators, etc., but they are prevented from being used by third parties other than authorized right holders who are permitted to operate the work machines. For this reason, it has been conventionally known that when a valid password is input to the working machine, the operating machine is unlocked and the working machine is put into an operating state. (For example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 2003-40081

  In the invention of Patent Document 1 described above, when the right holder forgets the personal identification number (password), he / she contacts the manager on the management side such as a rental company that manages the work machine and the legitimate right from the manager. When the personal identification number is taught to the right holder, the work machine can be unlocked.

  Therefore, when the administrator on the management side receives a notification that the password has been forgotten, it is necessary to confirm whether or not the person who has contacted is a right holder. In other words, since the password number must be taught only to the rightful owner, it is necessary to check whether or not it is a rightful owner. For this reason, on the side of operating the work machine, if the password is forgotten even though it is a legitimate right holder, the work of confirmation work is required and the work cannot be started quickly. There is a problem. On the other hand, on the management side, it is necessary to promptly notify the personal identification number when it is contacted by a rightful owner, so there is a problem that the manager must always have the system in place.

  Therefore, the present invention provides a work machine that can quickly and easily put the work machine into an operating state even when the password for releasing the system lock provided to prevent the work machine from being stolen is forgotten. It is an object to provide an operation management system and an operation management method.

  The work machine operation management system of the present invention is a work machine operation management system including a work machine, a management server provided on a management side for managing the work machine, and a communication terminal capable of communicating with the work machine. The work machine has an input means for inputting a personal identification number, a personal identification number determination means for determining whether or not the inputted personal identification number is a valid personal identification number, and an invalid personal identification number is input once or a plurality of times. A system lock unit that locks the system when the system is locked, and a system lock notification unit that notifies the management server of the system lock when the system is locked, and the management server receives the notification of the system lock. To the communication terminal of a valid right holder associated with the work machine registered in the management server, and the effective password is notified to the communication terminal. Serial and displaying on the screen of the communication terminal.

  In the work machine operation management method of the present invention, a key switch input step for inputting a key of the work machine and an input means provided for the work machine are used to input a password for putting the work machine in an operating state. A security code input step; a security code determination step for determining whether or not the input security code is a valid security code; and when the invalid security code is entered one or more times, The system lock step for locking, the system lock notifying step for notifying the management server provided on the side managing the work machine that the work machine has been system locked, and the management server are registered in itself. A password notifying step of notifying the valid password to a communication terminal of a valid right holder associated with the work machine; and the right holder A password re-entry step for re-entering the password based on the valid password displayed on the screen of the communication terminal, and releasing the system lock when a valid password is entered. And a system unlocking step.

  According to the operation management system and operation management method for a work machine of the present invention, even if the operator forgets the security code for releasing the system lock for preventing the work machine from being stolen, the work machine can be operated quickly and easily. The machine can be put into operation.

  Embodiments according to the present invention will be described below. Here, the working machine is described as being managed by a management company such as a rental company, but may be managed by a construction / civil engineering company that actually constructs the work. In any case, it is assumed that the work machine is managed and operated by a management server installed on the management side. Of course, the rental company manages not only one work machine but also a plurality of work machines, and these multiple work machines are managed and operated by a management server. This applies not only to rental companies but also to those managed by construction and civil engineering companies.

  Such a work machine is connected to the management server via a communication network, and is configured to be able to transmit and receive various data. As the communication network here, there are various communication networks such as the Internet network, circuit switching network, mobile packet communication network, satellite communication network, etc., but information is not exchanged between the work machine and the management server. This is done wirelessly.

  Further, the work machine is provided with an operation management device for preventing theft and the like. In this operation management device, a personal identification number is stored in advance, and when the same personal identification number as the stored personal identification number (hereinafter referred to as a valid personal identification number) is input, the operational management device mainly performs work. It is possible to recognize that the operator has a legitimate right such as an operator who operates the machine or a service person who performs maintenance / inspection (hereinafter described as an operator), and the working machine can be put into an operating state. On the other hand, when a number different from the stored personal identification number (hereinafter referred to as an invalid personal identification number) is input, the work machine is brought into a system lock state in which it cannot be operated. Here, an invalid password is input when a third party other than the operator inputs it or when the operator makes a mistake in inputting the password. Therefore, if an invalid password is entered only once, the entered person is not necessarily a third party other than the operator. Therefore, when invalid passwords are entered multiple times, operation management is performed. The device recognizes that it is a third party other than the operator, locks the work machine, and makes it inoperable. Here, as a method of setting the work machine in the system lock state, a method of generally locking the engine can be considered.

  However, even if you are an operator, you may have forgotten or forgotten your valid PIN, and in that case, you will have entered a number that is different from your invalid PIN many times. The machine is system locked. Therefore, when the work machine is system-locked, information to that effect is notified to the management server, and the management server notifies the communication terminal owned by the operator of a valid password, and the valid password is displayed on the screen. Is displayed. Here, as the communication terminal, there are portable communication terminal devices such as a mobile phone, a PHS (Personal Handyphone System), a PDA (Personal Digital Assistance), and the mobile phone is mainly applied. Since a valid password is notified to the communication terminal, the operator who operates the work machine that is the owner of the communication terminal can input the password based on the valid password displayed on the screen. . As a method for notifying a valid personal identification number to the communication terminal, notification can be made by transmitting a mail including a valid personal identification number from the management server to the mail address assigned to the communication terminal.

  Therefore, if the operator does not remember a valid password at all, an arbitrary number (for example, a number of all “0”, etc.) is entered, and the work machine is intentionally system-locked to the portable communication terminal. Thus, the work machine can be put into an operating state by notifying a valid password.

  By the way, when the system is locked, the operator's communication terminal is notified of a valid password, and the operator can input the password based on the valid password displayed on the screen. After that, when an invalid password is input once or a plurality of times, it is apparent that a third party other than the operator performs an illegal act such as theft on the work machine. Therefore, in this case, not only the system lock but also the engine is locked, and all the mechanisms such as the pump and the valve are locked, and the complete lock that makes the work machine completely inoperable is performed.

  Further, when the work machine is system-locked, it is preferable not to accept an input of a personal identification number, or to make a determination even if there is an input of a number. That is, even when the system is locked, there is further input of a personal identification number, and when the personal identification number is determined, it becomes possible to repeatedly input the personal identification number, and even in the input by a third party other than the operator, There is a possibility that a valid password will be entered. Therefore, once the system is locked, the password is restricted so that it cannot be re-entered.

  Therefore, when the system is locked, the personal identification number is the first time that a specific operation is performed on the operation management device (mainly, the input unit for inputting the personal identification number provided in the operation management device). The input restriction is canceled by making the state ready for re-input. At this time, the operator's communication terminal is notified of the above-described input restriction release procedure (hereinafter referred to as the input restriction release procedure) in addition to the valid personal identification number, and the valid personal identification number and the input restriction cancellation are displayed on the screen. By displaying the procedure, the operator can restore the operation management device to a state in which the number can be re-input.

  Of course, in this case, only the operator should be able to know the input restriction release procedure described above, but a specific operation is performed by a third party other than the operator and the number is re-enterable. There is a possibility. In this case, when an invalid password is input once or a plurality of times, complete lock is performed.

  Here, when receiving the notification of the system lock from the work machine, it is conceivable to release the system lock of the operation management apparatus from the management server via the communication network NW by radio. If control is enabled, the operation management device may malfunction due to an error signal such as noise, and the system lock may be released without a valid password being input. Moreover, although it can cancel | release by the short-distance wireless communication with which the communication terminal is equipped, there exists a possibility of causing malfunction similarly. Therefore, release of the system lock in the present invention is enabled only when the operator manually inputs a number from the input unit.

  As described above, when the work machine is system-locked, a valid password is notified to the communication terminal. At this time, the operator designates the communication terminal as a work machine (mainly, the cab of the work machine). If left unattended, a third party other than the operator can make the work machine operable. Accordingly, in consideration of such a case, when the operator notices that the communication terminal has been left on the work machine, it is preferable to contact a management company such as a rental company and change the personal identification number of the work machine. .

  Hereinafter, an operation management system and an operation management method for the work machine will be described with reference to examples.

   Embodiment 1 will be described below with reference to the drawings. As shown in FIG. 1, in the present invention, a work machine 1, a management server 2, and a communication terminal 3 are connected to each other via a communication network NW. Examples of the work machine 1 include work machines such as a hydraulic excavator, a bulldozer, a forklift, and a hydraulic crane, a trailer that transports these work machines, a service car that performs maintenance and inspection, and the like. The work machine 1 includes an operation management device 4, a key switch 5, a starter control relay 6, a key switch start relay 7, an engine 8, and a battery 9.

  The operation management device 4 is a device for preventing the work equipment 1 from being stolen by making the work equipment 1 operable only when a valid password is input. , An input unit 41, a password determination unit 42, a password storage unit 43, a system lock unit 44, a release signal output unit 45, a transmission / reception unit 46, and a counter 47.

  The input unit 41 is an input unit for inputting a personal identification number, and the illustrated unit is provided with a display unit 41A, a numeric keypad 41B, and a confirmation key 41C. Here, the ten key 41B for inputting the personal identification number is normally composed of ten keys from 0 to 9, but is not limited to this, and may be a key such as alphabet or symbol. The display unit 41A is a display unit for displaying which key of the numeric keys 41B is pressed, and the confirmation key 41C is a key for confirming the input content. The personal identification number determination unit 42 compares the personal identification number (valid personal identification number) stored in advance in the personal identification number storage unit 43 with the personal identification number input by the input unit 41, and the input personal identification number is valid. It is a determination part which determines whether it is a PIN code.

  The system lock unit 44 is connected to the personal identification number determination unit 42 and a cancellation signal output unit 45 for outputting a cancellation signal for putting the engine 8 in an operating state. As a result of the determination by the personal identification number determination unit 42, the system lock unit 44 is effective. When it is determined that a personal identification number has been input, a cancellation signal is output to the cancellation signal output unit 45, and when an invalid personal identification number is input a plurality of times, the work machine 1 is system-locked. When the system lock is performed, control is performed so that the release signal is not output from the release signal output unit 45 unless the system lock is released. As a result, the work machine 1 does not enter an operating state.

  The transmission / reception unit 46 is for exchanging information with the management server 2 via the communication network NW. When the system lock unit 44 places the work machine 1 in the system lock state, a signal to that effect is sent to the management server 2. Send. When changing the password (valid password) stored in the password storage unit 43 of the work machine 1, the transmission / reception unit 46 receives a signal transmitted from the management server 2 via the communication network NW. It can also be changed.

  The counter 47 counts the number of invalid PIN numbers input. When the value of the counter 47 exceeds the limit value, the system lock unit 44 performs system lock. This limit value can be set arbitrarily.

  Next, the key switch 5 provided in the work machine 1 is a switch for supplying electric power from the battery 9 to the engine 8, and when the key switch 5 is inserted, the key switch start relay 7 is turned on. The power of the battery 9 is ready to be supplied to the engine 8. On the other hand, when the key switch 5 is not inserted, the key switch start relay 7 is in a disconnected state, so that the power of the battery 9 is not supplied to the engine 8. The starter control relay 6 is a device for controlling the starter 8 </ b> A that operates the engine 8, the key switch start relay 7 is turned on, and a release signal is output from the release signal output unit 45 of the operation management device 4. Only when is output, the starter 8A of the engine 8 is controlled so that the engine 2 can be started. Accordingly, when the key switch 5 is inserted and the release signal is not output from the release signal output unit 45, the starter control relay 6 does not make the engine 8 startable.

  The management server 2 is a computer installed in a rental company that manages the work machine 1 and manages and operates a plurality of work machines 1 managed by the rental company. In the management server 2, information in which the work machine 1 is associated with the mail address of the communication terminal 3 of the operator who is permitted to operate the work machine 1 is stored in a storage device such as a database. For example, an identifier is given to each of the plurality of work machines 1 owned by the rental company, and the identifier of each work machine 1 and the mail address of the communication terminal 3 of the operator who is permitted to operate each work machine 1. Are stored in the storage device so as to form a pair. In addition to the above-described database, the storage device includes another database that stores valid passwords for each work machine 1, and this database includes an identifier for each work machine 1 and a corresponding password. The number is stored. When the management server 2 is notified of the system lock, the management server 2 searches for a valid personal identification number corresponding to the identifier assigned to the working machine 1 that has sent the notification and the mail address of the operator, Automatically send an email containing a valid PIN to the found email address. Such processing is automatically performed by a computer constituting the management server 2. In this case, as a valid PIN code notification mode, e-mail is applied. However, if the PIN number is notified to the communication terminal 3 and can be displayed on the screen of the communication terminal 3 Not limited to this.

  The work machine 1 has a GPS (Global Positioning System) receiver 10 and acquires position information from the GPS satellite 20, which will be described later.

  Next, the processing of this embodiment will be described with reference to the flowchart of FIG. It is assumed that the work machine 1 is not locked in the initial state, but the release signal is not output from the release signal output unit 45. The initial value of the counter 47 is assumed to be 0.

  First, the operator performs an insertion operation of the key switch 5 (step S1). When the key switch 5 is inserted, the key switch start relay 7 is turned on, so that the power from the battery 9 can be supplied to the engine 8, but the starter control relay 6 controls the starter 8A to start the start. Since the release signal necessary for performing the operation is not output from the release signal output unit 45, the engine 8 is not started.

  Next, a password is input to the numeric keypad 41B of the input unit 41 (step S2). The personal identification number determination unit 42 determines whether or not the input number is a personal identification number (valid personal identification number) stored in the personal identification number storage unit 43 (step S3). Then, the release signal is output from the release signal output unit 45 (step S4), and the engine 8 is started.

  On the other hand, if it is determined that the password number is invalid as a result of the determination by the password number determination unit 42, the value of the counter 47 is increased by one (step S5), and whether or not the value of the counter 47 has reached the limit value. Is determined (step S6). Here, as described above, the limit value is the number of times the password can be re-input. That is, as described above, even an operator may mistakenly input a PIN, so the system is not locked with one invalid PIN, but multiple PINs are entered. to approve. Therefore, referring to the value of the counter 47, if the permitted number of inputs is not exceeded, re-entry of the password is permitted (step S2). On the other hand, when the number of invalid PIN numbers input exceeds the limit value, the system lock unit 44 performs system lock (step S7). At this time, the system lock unit 44 notifies the management server 2 from the transmission / reception unit 46 to the management server 2 that the system has been locked (step S8).

  Here, the input of an invalid password exceeding the limit value is not limited to a third party who may perform an illegal act such as theft, and may be an operator having a legitimate right. That is, even if the operator is an operator, the personal identification number cannot be input when the personal identification number is unclearly remembered or forgotten.

  Therefore, when the work server 1 is notified of the system lock, the management server 2 assigns a valid password via the communication network NW to the mail address assigned to the communication terminal 3 of the associated operator. Transmit (step S9). The operator can input a valid password using the input unit 41 based on the valid password displayed on the screen of the communication terminal 3 (step S10). Thereby, the system lock is released (step S11), and a release signal is output from the release signal output unit 45 to the starter control relay 6 (step S12). Then, the starter control relay 7 controls the starter 8A to start the engine 8.

  By the way, it is not preferable that the personal identification number is input without limitation after the system lock in step S7. In other words, if an unlimited number of passwords is allowed, even a third party other than the operator may eventually enter a valid password. Therefore, once the system lock is performed, when an invalid password is input once or a plurality of times, complete lock is performed to completely stop the operation of the work machine 1.

  This process is shown in FIG. The process in FIG. 3 is a process after the step in which the effective password is notified to the communication terminal 3 in step S9 in FIG. That is, even when a valid PIN is notified to the communication terminal 3, the process is performed when a number input error occurs, and therefore the process before step S9 is the same as that in FIG.

  First, the value of the counter 47 is returned to the initial value “0” (step S21). Since the value of the counter 47 has increased due to an input error before the system lock, the value must be returned to the initial value. Next, the operator inputs a personal identification number based on the valid personal identification number displayed on the screen of the communication terminal 3 (step S22). If the input number is a valid password, the system lock is released (step S24), and the release signal is output from the release signal output unit 45 (step S25), and the engine 8 is started.

  On the other hand, when it is determined in step S23 that the password is invalid, the value of the counter 47 is incremented by one (step S26), and it is determined whether or not the value reaches the limit value (step S27). . If the limit value has not been reached, re-entry of the personal identification number is permitted (step S22), but if the limit value has been reached, the work machine 1 is clearly illegal, such as theft, by a third party other than the operator. It can be seen that various acts are about to be performed. In this case, in addition to the engine 8, a complete lock that completely stops the operation of all mechanisms provided in the work machine 1 such as a valve and a pump is performed (step S28), and any operation is not accepted.

  At the same time, the management server 2 is notified to that effect, and the management server 2 can know that the work machine 1 is likely to be stolen. For example, the management server 2 can notify the police and alert the work machine 1 Some measures can be taken, such as making it sound and dispatching a service person to the site.

  As described above, in order to prevent the work machine 1 from being stolen, the operator who operates the work machine 1 forgets a valid password when requesting a password for putting the work machine 1 into an operating state. Even when the system is locked, a valid password is automatically transmitted to the mail address of the operator's communication terminal 3 registered in the management server 2 that has received the notification of the system lock. For this reason, it is not necessary to confirm whether or not the person is a right holder, and it is not always necessary to place a person on the management side, so that the operator can know a valid password without taking time and effort. The system lock can be released quickly and easily, and the work machine 1 can be put into an operating state.

  Next, Example 2 will be described. In the second embodiment, in order to prevent an unlimited entry of a personal identification number after the system is locked, the personal identification number cannot be re-inputted to the input unit 41 when the system is locked. This prevents the password from being re-entered over and over without limitation.

  Therefore, as shown in FIG. 4, an input control unit 48 is further provided between the input unit 41 and the personal identification number determination unit 42, and when the system lock unit 48 is in the system lock state, the input control unit 48 The input from the numeric keypad 41B and the confirmation key 41C of the unit 41 is controlled to be invalidated. However, when a special operation is performed on the numeric keypad 41B or the confirmation key 41C, the input control unit 48 is restored to a state in which the password can be re-input to the input unit 41. Examples of the special operation include an operation of simultaneously pressing any two keys of the numeric keypad 41B and a case of pressing the keys in a specific order. However, these special operations are operations for restoring the password to a state where it can be re-inputted, and do not validate the input of the password.

  At this time, it is necessary to teach the operator how to perform this special operation. Therefore, when the work machine 1 is system-locked, a mail including the above-mentioned special operation procedure is automatically transmitted to the mail address of the operator's communication terminal 3 together with a valid password. Thereby, the operator can know the procedure of the special operation, and can enter a state where the password can be re-input.

  The processing of this embodiment will be described with reference to the flowchart of FIG. In this case, it is assumed that the system is locked in the initial state and the value of the counter 47 is 0.

  Since steps S31 to S37 are the same as those in the first embodiment, description thereof is omitted. In the present embodiment, when the system is locked by inputting an invalid PIN number a plurality of times, the system lock unit 44 controls the input control unit 48 so that the ten key 41B and the enter key 41C of the input unit 41 are controlled. Restriction to invalidate the input is performed (step S38). That is, even if any key of the numeric keypad 41B or the confirmation key 41C is pressed, the input is invalid, but as an exception, only a specific operation is valid. At this time, even if the numeric key 41B or the confirmation key 41C is pressed, it is preferable that nothing is displayed on the display unit 41A.

  In order to notify the operator of the specific operation, when the management server 2 is notified that the work machine 1 has been locked (step S39), the management server 2 releases the input restriction together with a valid password. The procedure is also automatically transmitted to the mail address of the operator's communication terminal 3 (step S40). As a result, the operator's communication terminal 3 receives an e-mail in which the password and the input restriction release procedure for releasing the input restriction of the input unit 41 are received, and the valid password and the input restriction are released on the screen. And instructions are displayed. In accordance with this, the operator performs a specific operation on the input unit 41, cancels the input restriction (step S41), inputs the password (step S42), and releases the system lock (step S43). As a result, the release signal is output, so that the engine 8 is started.

  Here, after the system lock, a specific operation may be performed by a third party other than the operator, and the input restriction may be released. That is, when this specific operation is very complicated, it is unlikely that the input restriction will be released by anyone other than the operator, but when the degree of complexity is not high, the input restriction is released by a third party other than the operator. Sometimes. Therefore, by performing the same processing as in FIG. 3 of the first embodiment, a certain limit is set on the number of times the password is re-input after the system lock. Operation management of 1 can be thorough.

  As described above, when the work machine 1 is system-locked, the security code can be re-entered so that the safety can be further improved. Then, by automatically transmitting an input restriction release procedure for releasing the input restriction of the personal identification number to the operator's communication terminal 3 together with a valid personal identification number, the operator can release the input restriction without taking time and effort. And the effective password can be known, the system lock can be quickly and easily released, and the work machine 1 can be operated.

  Next, a case where the operator forgets the personal identification number and the communication terminal 3 is not carried will be described. In this case, since the operator cannot input a valid password, the work machine 1 cannot release the system lock and cannot know the valid password notified from the management server 2. Therefore, the personal identification number is notified to the communication terminals 3 of a plurality of operators in addition to the operator of the work machine 1.

  That is, when work is performed using the work machine 1, it is usually not performed by one operator but by a plurality of workers (hereinafter referred to as joint workers). Therefore, when the operator does not carry the communication terminal 3, the work machine 1 is operated by notifying the communication terminal 3 possessed by a collaborator working at the same work site of a valid password. Even if the operator does not carry the communication terminal 3, it is possible to know a valid password from the collaborator. Therefore, not only the communication terminal 3 of one operator but also the communication terminal 3 of the collaborator is registered in the work machine 1 in advance in the management server 2, and the work lock 1 is notified of the system lock. In some cases, a valid password is automatically transmitted to the operator's communication terminal 3 and the collaborator's communication terminal 3 corresponding to the work machine 1.

  As a result, even if the operator forgets a valid password and does not carry the communication terminal 3, without contacting the management company and confirming whether or not the person has a legitimate right, A valid personal identification number can be known, the system lock can be quickly and easily released, and the work machine 1 can be put into operation.

  By the way, when a plurality of communication terminals 3 are registered in the management server 2 as described above, even if the operator carries the communication terminal 3, the collaborator who is automatically registered when the system is locked. A valid password is also transmitted to the communication terminal 3. However, originally, it is preferable that a valid personal identification number is notified to the communication terminal 3 of the collaborator only when the operator forgets the personal identification number and does not carry the communication terminal 3.

  Therefore, only when the position of the work machine 1 is away from the position of the operator's communication terminal 3, a valid password is notified to the communication terminal 3 of the collaborator. For this reason, the work machine 1 includes a GPS receiver 10, measures the latitude and longitude from the GPS satellite 20, and grasps its own position. The position information is always transmitted from the transmission / reception unit 46 to the management server 2 via the communication network NW. On the other hand, the communication terminal 3 always transmits its own position to the management server 2. At this time, the approximate position of the communication terminal 3 can be detected from a plurality of base stations capable of communicating with the communication terminal 3, for example.

  Therefore, when the management server 2 receives the notification of the system lock from the work machine 1, the management server 2 compares the position transmitted from the work machine 1 with the position transmitted from the communication terminal 3, and sets the remote position. Only in some cases, a valid password is transmitted to the communication terminal 3 of the collaborator.

  Thereby, only when the operator forgets a valid password and does not carry the communication terminal 3, the password can be notified to the communication terminal 3 of the collaborator.

1 is an overall view of a work machine theft system in Embodiment 1. FIG. 3 is a flowchart illustrating a flow of processing in the first embodiment. 3 is a flowchart illustrating a flow of processing after system lock in the first embodiment. 6 is an overall view of a work machine theft system in Embodiment 2. FIG. 10 is a flowchart illustrating a processing flow in the second embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Work machine 2 Management server 3 Communication terminal 4 Operation management apparatus 41 Input part 42 Password number determination part 43 Password number memory | storage part 44 System lock part 45 Release signal output part 46 Transmission / reception part 47 Input control part

Claims (7)

A work machine operation management system having a work machine, a management server provided on a management side for managing the work machine, and a communication terminal capable of communicating with the work machine,
The work machine has input means for inputting a personal identification number, personal identification number determination means for determining whether the inputted personal identification number is a valid personal identification number, or an invalid personal identification number once or a plurality of times. System lock means for locking the system sometimes, and system lock notification means for notifying the management server of the system lock when the system is locked,
When the management server receives the notification of the system lock, the management server notifies the communication terminal of a valid right holder associated with the work machine registered in the management server of a valid password, An operation management system for a work machine, characterized in that the effective password is displayed on a screen of the communication terminal.   When the work machine is system-locked, if the invalid password is entered multiple times in succession, perform a complete lock to stop all functions of the work machine, and for the management server, The operation management system for a work machine according to claim 1, wherein the fact is notified.   When the work machine is system-locked, the input of the personal identification number input from the input means is invalidated, and the system lock is released only when a special operation is performed on the input means. The operation management system for a work machine according to claim 1.   When the work machine is system-locked, the special operation procedure is notified to the communication terminal of the right holder together with the valid password, and the valid password and the special operation procedure are notified. Is displayed on the screen of the communication terminal. 4. The operation management system for work implements according to claim 3, wherein   In the management server, a plurality of communication terminals can be registered in addition to the communication terminal of the right holder who is associated with the work machine, and when the work machine is system-locked, The work machine operation management system according to claim 1, wherein the valid password is notified.   The work machine and the communication terminal have position detection means for detecting their own positions, and when the position of the communication terminal of the right holder is separated from the position of the work machine, The work machine operation management system according to claim 5, wherein the valid password is transmitted to the communication terminal. A key switch input step for entering the key of the work implement;
A password input step for inputting a password for putting the work machine in an operating state by input means provided in the work machine;
A password determination step for determining whether the input password is a valid password;
A system lock step for system-locking the work machine when an invalid password is entered one or more times;
A system lock notification step for notifying the management server provided on the side that manages the work machine that the work machine has been system-locked;
A security code notifying step of notifying the effective security code to a communication terminal of a valid right holder associated with the work machine registered in the management server;
A password re-entry step in which the right holder re-enters the password based on the valid password displayed on the screen of the communication terminal;
And a system lock releasing step of releasing the system lock when a valid password is inputted.

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