JP2009243167A - Display control device for construction machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure safety by enabling only a serviceman to access a screen for a serviceman without complicated operation and setting a state of inhibiting the start of an engine while the serviceman is in the service a construction machine. <P>SOLUTION: When the key on-operation of a key means 20 is performed in this display control device, a reading part 6 reads a serviceman identification ID stored in a serviceman identification ID storage part 21 of the key means 20 through a key side communication part 22 and a vehicle body side communication part 5, and collates it with a registered ID to authenticate the coincidence of both the IDs. When the serviceman is authenticated, a display control part 7 displays a screen for the serviceman on a display device 4. Even if the engine start on-operation of the key means 20 is performed, the engine 3 is not started only by this operation. On condition that specific operation such as the operation of switching the screen for the serviceman over to a normal screen is performed besides the engine start on-operation of the key means 20, the engine control part 8 starts the engine 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a display control device in a construction machine that displays a serviceman screen for displaying information for a serviceman on a display screen of a display device of a construction machine.

(Conventional technology)
A monitor panel is provided in a cab of a construction machine such as a hydraulic excavator. When the operator of the construction machine performs a key-on operation on the key means, a normal screen for displaying information for the operator is displayed on the monitor panel. The normal screen displays information necessary for operation such as an oil temperature gauge, a fuel gauge, and various warning lights.

  On the other hand, a service person who performs a service such as maintenance of a construction machine performs a key-on operation on key means having the same specifications as the operator when performing a service operation such as engine inspection, and displays a normal screen. Then, the normal screen is switched to the password input screen, and the password is input. When the entered password matches the registered password, the normal screen is switched to a screen for serviceman displaying information for the serviceman. The serviceman screen displays important information such as inspection history, failure history, repair history, and parts replacement history, as well as machine parameter settings that determine engine control details on the screen. It is possible to change. As described above, the screen is switched to the serviceman screen on the condition that the password is input every time the key means is operated for key-on so that a person other than the serviceman cannot easily access the serviceman screen.

Also, the service person normally operates the key means to the engine off position in order to ensure the safety of service work when servicing construction machinery, except when performing inspection work while the engine is running. Or stop the work machine.

(Prior art found in patent literature)
Patent Document 1 discloses an invention that allows engine start in the field of construction machinery on condition that the authentication code stored in the key means matches the authentication code stored in the vehicle body for the purpose of preventing theft. Is described.
JP 2001-82010 A

  However, it is troublesome to enter the password every time the service work is performed, and there is a demand for reducing this effort.

  On the other hand, the password may be easily seen by a person other than the service person in the form of a memo or the password information may be leaked. For this reason, the password is entered by a person other than the service person and the screen is switched to the service person screen, important information is leaked, machine parameter settings are changed, engine control details are changed, etc. The setting may be different from the setting of.

  The present invention has been made in view of such circumstances, and allows only a serviceman to access the serviceman screen without troublesome operations, and allows persons other than the serviceman to easily access the serviceman screen. Making it impossible is a first problem.

In addition, conventionally, the key means used by the serviceman have the same specifications as the key means used by the operator, so there is a risk that the engine will start unintentionally due to careless operation during service work. is there. For this reason, for example, when the engine is inadvertently started when the body cover is opened and the engine room is inspected or when the work equipment is inspected, the service person may be exposed to danger. There is.

Therefore, a second object of the present invention is to ensure safety during service work by setting the engine in a state where it cannot be reliably started when a service man is servicing a construction machine.

  The invention described in Patent Document 1 is an invention for the purpose of preventing theft of construction machines to the last, and is characterized by whether or not engine start is permitted. Patent Document 1 does not suggest at all whether or not to allow the display screen of the display device to be a serviceman screen.

The first invention is
A display control device in a construction machine that displays a serviceman screen for displaying information for a serviceman on a display device provided in the construction machine,
Portable key means include
A serviceman identification ID storage unit for storing a serviceman identification ID for identifying a serviceman;
A key-side communication unit that communicates with the in-vehicle control device of the construction machine in response to a key-on operation,
In the body of construction machinery,
A vehicle body side communication unit that communicates with the key side communication unit;
In response to the key-on operation, the serviceman identification ID stored in the serviceman identification ID storage unit of the key means is read via the key side communication unit and the vehicle body side communication unit, and collated with the registered serviceman identification ID. A reading unit for authenticating that the two match,
The display device is provided with a display control unit that displays a screen for a serviceman when authentication as a serviceman is performed.

The second invention is the first invention,
An engine control unit is further provided that starts the engine on condition that a specific operation other than the engine start-on operation is performed when the key means is operated to start the engine.

The third invention is the first invention,
The display device displays a normal screen for displaying information for the operator,
The display control unit
When the display device displays the serviceman screen, the serviceman screen is switched to the normal screen on condition that a specific operation has been performed.

A fourth invention is the first invention,
A server provided with a database storing service information necessary for the service of the construction machine is provided in a place away from the construction machine,
The construction machine has a communication terminal that communicates with the server.
When authentication as a service person is performed, the communication terminal accesses the server and takes in the service information stored in the database into the construction machine.

The apparatus of the first invention displays a serviceman screen 30 for displaying information for a serviceman on the display device 4 provided in the construction machine 1.

The portable key means 20 includes a serviceman identification ID storage unit 21 and a key side communication unit 22.

In the vehicle body 2 of the construction machine 1, a vehicle body side communication unit 5, a reading unit 6, and a display control unit 7 are provided.

  For this reason, when the key means 20 is operated to be turned on, the reading unit 6 causes the serviceman stored in the serviceman identification ID storage unit 21 of the key means 20 via the key side communication unit 22 and the vehicle body side communication unit 5. The identification ID is read and checked against the registered serviceman identification ID to authenticate that they match. When the authentication of the service person is performed, the display control unit 7 displays the service person screen 30 on the display device 4.

  As described above, according to the first aspect of the present invention, the serviceman can automatically authenticate the serviceman identification ID only by pressing the key means 20 on the key means 20, and the serviceman screen is displayed on the condition of the authentication. 4, only the service person can access the service person screen without troublesome operations. In addition, it becomes difficult for a person other than the service person to access the screen for the service person.

In the second invention, even if the key means 20 is operated to start the engine, the engine 3 is not started by itself. In addition to the key means 20 being operated to start the engine, a specific operation such as a serviceman screen 30 is displayed. The engine control unit 8 starts the engine 3 on condition that an operation for switching to the normal screen 40 has been performed.

As described above, according to the second aspect of the invention, even if the key means 20 is operated to start the engine, the engine 3 is not started by itself, and a specific operation other than the key means 20 is operated to start the engine. Since the engine 3 is started on the condition that it has been done, the engine 3 can be in a state where it cannot be reliably started when the service person is servicing the construction machine 1. This ensures safety during service work.

In the third invention, when the display device 4 displays the serviceman screen 30, a serviceman screen is provided on the condition that a specific operation, for example, a mode switching operation is performed on the serviceman screen 30, for example. 30 is switched to the normal screen 40.

In the fourth invention, a server 60 including a database 61 in which service information necessary for the service of the construction machine 1 is stored is provided at a location away from the construction machine 1.

  The construction machine 1 is provided with a communication terminal 9 that communicates with the server 60.

When authentication as a service person is performed, the communication terminal 9 accesses the server 60 and takes in the service information stored in the database 61 into the construction machine 1. As a result, the latest service information can be displayed on the serviceman screen 30 of the display device 4, and the service can be performed based on the latest information.

Embodiments of a display control device for a construction machine according to the present invention will be described below with reference to the drawings. In the following description, a hydraulic excavator is assumed as a construction machine. In the following, the term “operator” includes not only a person who operates the construction machine 1 but also a general user who uses the construction machine 1, and unlike a service person, access to the screen for the service person is prohibited. It will be used in the sense that it is.

FIG. 1 shows an apparatus configuration of the embodiment.

As shown in FIG. 1, the construction machine 1 is provided with a communication terminal 9 that communicates with an external ground station 160. On the other hand, a ground station 160 is provided at a location away from the construction machine 1. The ground station 160 includes a server 60 and a communication unit 161.

The communication terminal 9 of the construction machine 1 and the communication unit 161 of the ground station 160 exchange data with each other.

The server 60 is provided with a database 61 in which service information necessary for the service of the construction machine 1 is stored.

Therefore, the communication terminal 9 of the construction machine 1 can access the server 60 by transmitting and receiving data to and from the communication unit 161 of the ground station 160, and the service information stored in the database 61 is transmitted to the construction machine 1. Can be captured.

In the vehicle body 2 of the construction machine 1, an engine 3, a key switch 10, a display control unit 7, an engine control unit 8, a communication terminal 9, and an information storage unit 12 are provided. The key switch 10 includes a vehicle body side communication unit 5, an information reading / writing unit 6, and a key cylinder unit 11. The key switch 10, the display control unit 7, the engine control unit 8, the communication terminal 9, and the information storage unit 12 are connected to each other via a signal line 13 so that data can be transmitted and received. An external device 14 is connected to the signal line 13. The external device 14 is provided with an external control device 15 and an external storage device 16. The external device 14 is, for example, a personal computer. This external device 14 is used by a serviceman connected to the signal line 13 as necessary.

The engine 3 is controlled by the engine control unit 8. The engine 3 is started when the starter motor 17 is operated. A starter signal is output from the engine control unit 8 and applied to the starter motor 17, whereby the starter motor 17 operates.

In the cab 2a of the vehicle body 2, a display device 4 configured as a monitor panel is provided. On the display screen 4a of the display device 4, as will be described later, a serviceman screen 30 for displaying information for a serviceman and a normal screen 40 for displaying information for an operator are displayed. The display device 4 is controlled by the display control unit 7.

On the other hand, the service person has portable key means 20. The key means 20 is constituted by an electronic ID key or RFID.

The key means 20 is provided with a serviceman identification ID storage unit 21, a key side communication unit 22, an expiration date information storage unit 23, and other information storage unit 24. The serviceman identification ID storage unit 21, the expiration date information storage unit 23, and the other information storage unit 24 are configured by, for example, IC tags.

The serviceman identification ID storage unit 21 stores a serviceman identification ID composed of a code that identifies a serviceman and identifies a person different from the operator. The key means 20 owned by the operator is provided with an operator identification ID storage unit. The operator identification ID storage unit is a code that identifies the operator and identifies the person different from the service person. Is stored.

The other information storage unit 24 stores the internal state of the construction machine 1 and calibration data.

The expiration date information storage unit 23 stores information on the expiration date of the key means 20 (for example, “2008 X month Y day”).

Hereinafter, the processing procedure in the present embodiment will be described with reference to the flowchart shown in FIG.

As shown in FIG. 2, when the operator inserts the key means 20 into the keyhole of the key cylinder portion 11 of the key switch 10 and operates the key means 20 to the key-on position (YES in step 200), the key means 20 The key side communication unit 22 and the vehicle body side communication unit 5 of the key switch 10 are in a state where they can transmit and receive each other. Therefore, the information reading / writing unit 6 reads the serviceman identification ID stored in the serviceman identification ID storage unit 21 of the key means 20 via the key side communication unit 22 and the vehicle body side communication unit 5 (step 201). ) Write to memory. Then, the serviceman identification ID written in the memory is compared with the serviceman identification ID registered in advance in the memory on the vehicle body 2 side to authenticate that they match. When the key means 20 owned by the operator is key-on operated, it is authenticated that the operator identification ID stored in the key means 20 matches the registered operator identification ID (step 202). When authentication as an operator is performed (determination “operator” in step 203), the display control unit 7 displays the normal screen 40 on the display screen 4 a of the display device 4.

A display example of the normal screen 40 is shown in FIG.

The normal screen 40 includes an oil temperature gauge 40a, an oil temperature warning lamp 40b, a fuel gauge 40c, a remaining fuel warning lamp 40d, a battery terminal voltage warning lamp 40e, a service meter 40f, a work mode display section 40g, various function keys or menus. Buttons 40h, 40i, 40j, 40k, 40l, etc. are displayed. Thereby, the operator can acquire information necessary for the driving operation.

When the normal screen 40 is displayed on the display screen 4 a of the display device 4, the starter signal is output from the engine control unit 8 by operating the key means 20 to the engine start-on position, and the starter motor 17. Added. That is, in the normal screen 40 display state, the engine 3 is started by operating the key means 20 to the engine start-on position (step 204).

On the other hand, when authentication as a service person is made (judgment “service person” in Step 203), the information reading / writing unit 6 is connected to the key means 20 via the key side communication unit 22 and the vehicle body side communication unit 5. The expiration date information (“2008 X month Y day”) stored in the expiration date information storage unit 23 is read and written to the memory. Then, it is compared with the current year, month, day, and time measured by the clock in the vehicle body 2 to determine whether the expiration date has expired or is within the expiration date (step 205). As a result, when the expiration date has expired (judgment at step 205 “expiration date”), the process returns to step 203 so that the serviceman screen 30 is not displayed.

In other words, a regular service person is required to regularly update the expiration date stored in the key means 20, and even if the key means 20 is stolen or leaked, it is valid if time passes. By expiring, it is possible to prevent a person other than the serviceman from accessing the serviceman screen 30 to a minimum.

On the other hand, if it is within the validity period (judgment of step 205, “within the validity period”), then whether or not the own construction machine 1 has a communication function capable of communicating with the ground station 160, That is, it is determined whether or not the communication terminal 9 that can access the server 60 is provided (step 206). As a result, when it is determined that the construction machine 1 does not have the communication terminal 9 (determination “no communication function” in step 206), the past maintenance history stored in the information storage unit 12 is read. And sent to the display control unit 7 (step 207).

On the other hand, if it is determined that the construction machine 1 has the communication terminal 9 (determination “with communication function” in step 206), the communication terminal 9 sends “service work” to the communication unit 161 of the ground station 160. Is transmitted together with the service start time information. When the communication unit 161 of the ground station 160 receives this “service work start time” information, the “service work start time” information is written in the service information of the database 61 of the server 60 (step 208).

Next, the communication terminal 9 sends a command to the communication unit 161 of the ground station 160 to send “past maintenance history”. When this command is received by the communication unit 161 of the ground station 160, the “past maintenance history” of the corresponding construction machine 1 is read from the database 61 of the server 60, and the information of “past maintenance history” is stored in the ground station. It is transmitted from the communication unit 161 of 160 to the communication terminal 9 of the construction machine 1 that is the transmission source. When the “past maintenance history” is received by the communication terminal 9, this “past maintenance history” information is sent to the display control unit 7 (step 209).

Next, the display control unit 7 displays a serviceman screen 30 on the display screen 4 a of the display device 4.

A display example of the serviceman screen 30 is shown in FIG.

The serviceman screen 30 displays “Past maintenance history” 30A, that is, past periodic inspection history 30b, repair history 30c, alarm history 30d, error history 30e, and replacement history 30f. The past periodic inspection history 30b is a past history of the periodic inspection of the construction machine 1. For example, information indicating that “XX inspection was performed on April 1, 2007” is displayed. The repair history 30c is a past history of repairing a failure of the construction machine 1, and for example, information indicating that an engine failure (overheating due to insufficient cooling water) was repaired on April 1, 2008 is displayed. The alarm history 30d is a past history of alarms generated by the construction machine 1, and displays information such as “cooling water temperature rise on March 30, 2008”, for example. The error history 30e is a past history of errors that have occurred in the construction machine 1. For example, information “overheating occurred on March 30, 2008” is displayed. The replacement history 30f is a past history in which parts of the construction machine 1 have been replaced. For example, information that “the oil filter has been replaced on December 1, 2007” is displayed. Information on the next periodic inspection, for example, “the next inspection is June 1, 2008” is displayed in the notification column 30g.

Further, on the service man screen 30, as in the normal screen 40, a service meter 30 h and a work mode display unit 30 i are displayed.

Further, as will be described later, on the service person screen 30, a menu button 30j for switching to the "normal screen" 40, a menu button 30k for acquiring "new arrival information", and a menu button for performing "failure diagnosis" 30l, a menu button 30m for executing “update machine parameters, backup” is displayed.

In the state where the serviceman screen 30 is displayed on the display screen 4a of the display device 4, even if the key means 20 is operated to the engine start-on position, it is prohibited to output a starter signal from the engine control unit 8. The That is, the engine 3 cannot be started in the display state of the serviceman screen 30 (step 210).

When the menu button 30j for switching to the “normal screen” 40 is operated on the service person screen 30 (determination “switch to normal screen” in step 211), the display screen 4a of the display device 4 is the service person screen. 30 to the normal screen 40, and the normal screen 40 is displayed on the display screen 4a. Thus, the engine 3 can be started by operating the key means 20 to the engine start-on position (step 204).

Thus, in this embodiment, once the serviceman screen 30 is displayed, even if the key means 20 is operated to start the engine, the engine 3 is not started by itself, and the key means 20 is operated to start the engine. In addition, the engine 3 can be started on condition that a specific operation, that is, an operation for switching the serviceman screen 30 to the normal screen 40 is performed.

When the menu button 30j for switching to the “normal screen” 40 is not operated on the serviceman screen 30 (determination “no switching to the normal screen” in step 211), the serviceman screen 30 is then displayed. It is determined whether or not the menu button 30k for acquiring “new arrival information” has been operated, that is, whether or not to inquire the server 60 (step 212).

When it is determined that the menu button 30k for acquiring “new arrival information” has been operated on the serviceman screen 30 (determination “inquiry to server” in step 212), the communication terminal 9 communicates with the communication unit 161 of the ground station 160. In addition, a command is sent to send “new arrival information”. When the communication unit 161 of the ground station 160 receives this command, “new arrival information” related to the corresponding construction machine 1 is read from the database 61 of the server 60, and “new arrival information” is read by the communication unit of the ground station 160. 161 is transmitted to the communication terminal 9 of the construction machine 1 as the transmission source. When “new arrival information” is received by the communication terminal 9, this “new arrival information” is sent to the display control section 7 (step 213).

Next, the display control unit 7 changes the screen of the serviceman screen 30 on the display screen 4 a to switch to the new arrival information display screen displaying “new arrival information”. On this new arrival information display screen, “new arrival information” downloaded from the database 61 of the server 60, for example, “change the machine parameter of the construction machine 1. The change content is △ Δ ×” is displayed. Step 210).

If the menu button 30k for acquiring “new arrival information” has not been operated on the serviceman screen 30 (determination in Step 212 “Do not query server”), then “ It is determined whether or not the menu button 30l for performing the “failure diagnosis” has been operated (step 214).

When it is determined that the menu button 301 for performing “failure diagnosis” is operated on the serviceman screen 30 (determination “failure diagnosis” in step 214), the display control unit 7 displays the serviceman on the display screen 4a. The screen of the display screen 30 is changed to “failure diagnosis” and switched to a failure diagnosis display screen for displaying the result. That is, according to a predetermined algorithm, a process for diagnosing a failure inside the construction machine 1 is executed (step 215), and the failure diagnosis result is displayed on this failure diagnosis display screen (step 210).

If the menu button 301 for executing the “failure diagnosis” is not operated on the serviceman screen 30 (determination “no failure diagnosis” in step 214), then “machine” is displayed on the serviceman screen 30. It is determined whether or not the menu button 30m for performing “parameter update, backup” has been operated (step 216).

When it is determined that the menu button 30m for performing “update and backup of machine parameters” has been operated on the screen 30 for service personnel (determination “update and backup of machine parameters” in step 216), the display control unit 7 Shifts the screen of the serviceman screen 30 on the display screen 4a, executes "update machine parameter, backup", and switches to the machine parameter setting screen for displaying the result. That is, an external device 14 (personal computer) is connected to the signal line 13. The external storage device 16 of the external device 14 stores “change value of machine parameter”. For example, when a malfunction of the engine 3 occurs, it is necessary to change the control content of the engine 3 by changing the control parameter of the engine 3. The external control device 15 reads “change value of machine parameter” from the external storage device 16 and sends it to the signal line 13. As a result, the machine parameter set in the vehicle body 2 is changed to the “change value of the machine parameter” downloaded from the external device 14. Information on the machine parameter setting contents of the construction machine 1 is stored in the external storage device 16 of the external device 14 for backup. Note that the machine parameter may be updated using the calibration data stored in the other information storage unit 24 of the key means 20 (step 217). The result of “update and backup of machine parameters” is displayed on the machine parameter setting screen (step 210).

When the menu button 30m for performing “update and backup of machine parameters” is not operated on the service person screen 30 (determination of “update and backup of machine parameters” in step 215), next, It is determined whether or not the key means 20 has been operated to the key-off position (step 218).

As long as the key means 20 is not operated to the key-off position (the determination is not “key-off” in step 218), the display of the serviceman screen 30 is continued on the display screen 4a of the display device 4 (step 210). When the key unit 20 is operated to the key-off position (determination “key-off” in step 218), the communication terminal 9 sends the information “service work has been completed” to the communication unit 161 of the ground station 160 of the service end time. Send with information. When the communication unit 161 of the ground station 160 receives this “service work end time” information, the “service work end time” information is written in the service information of the database 61 of the server 60. As a result, using the information on the service start time described above, the maintenance information “The maintenance work for the construction machine 1 was performed from r hours m minutes to n letters p minutes on the Z month W of 2008” was created. And uploaded to the server 60. As a result, the contents of the “past maintenance history” 30A relating to the construction machine 1 in the service information are updated. It should be noted that the internal state of the construction machine 1 after maintenance may be stored in the other information storage unit 24 of the key means 20 (step 219). After the process of step 219, all the processes are finished.

As described above, according to the present embodiment, the serviceman identification ID is automatically authenticated only when the serviceman performs the key-on operation of the key means 20, and the serviceman screen 30 is displayed on the condition that the authentication is performed. 4, only a serviceman can access the serviceman screen 30 without troublesome operations. Further, since the service person screen 30 cannot be accessed unless the key means 20 owned by the service person is used, it becomes difficult for a person other than the service person to access the service person screen 30.

Further, in the embodiment, even if the key means 20 is operated to start the engine, the engine 3 is not started by itself, and in addition to the key means 20 being operated to start the engine, a specific operation such as the screen 30 for the serviceman is performed. The engine 3 can be started on the condition that an operation for switching to the normal screen 40 has been performed. Thus, even if the key means 20 is operated to start the engine, the engine 3 is not started by itself, and the engine 3 is operated on condition that a specific operation is performed in addition to the key means 20 being operated to start the engine. Since the engine 3 is started, the engine 3 can be reliably prevented from starting when the serviceman is servicing the construction machine 1. This ensures safety during service work.

  In the present embodiment, when authentication as a serviceman is performed, the communication terminal 9 accesses the server 60 and takes in the service information stored in the database 61 into the construction machine 1. As a result, the latest service information can be displayed on the serviceman screen 30 of the display device 4, and the service can be performed based on the latest information.

FIG. 1 is a diagram illustrating a device configuration of the embodiment. FIG. 2 is a flowchart illustrating the processing procedure of the embodiment. FIG. 3 is a diagram showing a display example of a normal screen. FIG. 4 is a diagram showing a display example of the screen for service personnel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Construction machine, 2 vehicle body, 4 display apparatus, 30 serviceman screen, 40 normal screen, 20 key means, 21 serviceman identification ID memory | storage part, 22 key side communication part, 5 vehicle body side communication part, 6 reading part, 7 Display control unit

Claims (4)

A display control device in a construction machine that displays a serviceman screen for displaying information for a serviceman on a display device provided in the construction machine,
Portable key means include
A serviceman identification ID storage unit for storing a serviceman identification ID for identifying a serviceman;
A key-side communication unit that communicates with the in-vehicle control device of the construction machine in response to a key-on operation,
In the body of construction machinery,
A vehicle body side communication unit that communicates with the key side communication unit;
In response to the key-on operation, the serviceman identification ID stored in the serviceman identification ID storage unit of the key means is read via the key side communication unit and the vehicle body side communication unit, and collated with the registered serviceman identification ID. A reading unit for authenticating that the two match,
A display control device for a construction machine, comprising: a display control unit configured to display a screen for a serviceman when the display device is authenticated as a serviceman. 2. The engine control unit according to claim 1, further comprising: an engine control unit that starts the engine on condition that a specific operation other than the engine start-on operation is performed when the key means is operated to start the engine. Display control equipment for construction machinery. The display device displays a normal screen for displaying information for the operator,
The display control unit
2. The display control of a construction machine according to claim 1, wherein when the display device is displaying a serviceman screen, the serviceman screen is switched to a normal screen on condition that a specific operation is performed. apparatus. A server provided with a database storing service information necessary for the service of the construction machine is provided in a place away from the construction machine,
The construction machine has a communication terminal that communicates with the server.
2. The display control device for a construction machine according to claim 1, wherein, when authentication as a service person is made, the communication terminal accesses the server and takes in the service information stored in the database into the construction machine.

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