Job Selection System and Job Selection Method

Abstract

In the job selection system of the present invention, the server displays a selection screen for allowing an operator to select any job and any main device among one or more jobs and one or more main devices on an information terminal based on the job requirement information stored in the first database and the main device information stored in the second database. The information terminal sends a selection instruction obtained by the operator selecting any job and any main device through the selection screen to the server, and the server stores the operator ID, main device ID, and jobs indicated by the selection instruction in a job reservation database in a corresponding manner to contract the operator's job.

Description

Technical Field

[0001] The present invention relates to a technology for allowing an operator to select an operation subcontracted by a work subcontractor. Background Art

[0002] In recent years, with the aging of construction machinery operators, the shortage of operators has become increasingly serious, and it has become increasingly difficult for work subcontractors to ensure operators. Therefore, expectations for a remote operation system that allows operators to remotely operate construction machinery without going to the work site have been increasing.

[0003] In the case of adopting a remote operation system, operators can be recruited not only from all regions in the country but also from abroad. Therefore, it is easy for work subcontractors to ensure operators. In addition, in the case of adopting a remote operation system, operators do not need to go to the work site. Therefore, they can perform operations at one work site during a certain period and perform operations at other work sites during the next period, enabling a work style of changing work sites according to the period.

[0004] In addition, in the case of adopting a remote operation system, a remote operation device for allowing an operator to remotely operate construction machinery can be freely set without relying on the actual location of the operation. Therefore, the remote operation device can be set not only in, for example, the office of the work subcontractor that subcontracts the work or the construction company that undertakes the work, but also in various facilities such as rental offices, rental conference rooms, and Internet cafes.

[0005] In addition, by setting the remote operation device in facilities such as rental offices and renting the remote operation device to an operator for a certain period of time to allow the operator to perform remote operations, the birth of a new business such as charging a rental fee from the operator can also be expected.

[0006] In order to implement such a remote operation system, it is more desirable to construct an operation selection system as follows: using information terminals such as smartphones and tablet terminals, allowing an operator to conveniently select a desired operation and a remote operation device for performing the operation. However, such an operation selection system has not existed in the past.

[0007] Patent Document 1 only discloses a construction quantity management system as follows: calculating the productivity of each work group for civil engineering construction based on the machine information, personnel information, working hours, and construction completion quantity of each work group in a plurality of work groups. Therefore, the above-mentioned operation selection system cannot be provided.

[0008] Prior Art Documents

[0009] Patent Documents

[0010] Patent Document 1: Japanese Patent Laid-Open Gazette No. 2002-108975. Summary of the Invention

[0011] An object of the present invention is to provide a technology that enables an operator to conveniently select a desired operation and a remote operation device for performing the operation using an information terminal.

[0012] An operation selection system according to an aspect of the present invention is used to allow an operator of a remote operation device for remotely operating a construction machine to select an operation contracted by an operation contractor. The system includes: an information terminal for allowing the operator to select the operation; and a server connected to the information terminal via a network. The server has: a first database that pre-stores operation requirement information on one or more operations contracted by the operation contractor; a second database that pre-stores remote operation device information including at least an identifier of each of one or more remote operation devices; a display data generation unit that generates display data for causing a selection screen to be displayed on the information terminal based on the operation requirement information and the remote operation device information, the selection screen being for allowing the operator to select any operation and any remote operation device from among the one or more operations and the one or more remote operation devices; and a first communication unit that sends the display data to the information terminal. The information terminal has: a second communication unit that receives the display data; a display control unit that generates the selection screen based on the display data and causes the selection screen to be displayed on a display unit; and an operation unit that accepts a selection instruction from the operator to select the any operation and the any remote operation device through the selection screen. The second communication unit sends the selection instruction to the server. The server further has a contract management unit that contracts the operation of the operator by storing the identifier of the operator, the identifier of the remote operation device indicated by the selection instruction, and the operation indicated by the selection instruction in association with each other. Brief Description of the Drawings

[0013] Figure 1 It is a block diagram showing the overall configuration of an operation selection system according to an embodiment of the present invention.

[0014] Figure 2A It is a diagram showing an example of an operation content input screen for civil engineering displayed on a contractor terminal when an operation contractor contracts an operation to an operator.

[0015] Figure 2B is Figure 2A An enlarged view of the operation plan input field. It is a diagram showing an example thereof.

[0016] Figure 3It is a diagram showing an example of a rank determination table.

[0017] Figure 4A It is a diagram showing an example of the final screen displayed on the client terminal when the client has completed the input of the job content.

[0018] Figure 4B It is Figure 4A an enlarged view of the job plan input field shown.

[0019] Figure 5 It is a diagram showing the configuration of the second database storing main device information.

[0020] Figure 6A It is a diagram showing an example of the display screen displayed on the information terminal when an operator selects a contracted job.

[0021] Figure 6B It is Figure 6A an enlarged view of the part shown in G51A, G51B, and G51C of

[0022] Figure 7 It is a diagram showing the configuration of the job schedule database.

[0023] Figure 8 It is a diagram showing the configuration of the operator database.

[0024] Figure 9 It is a diagram showing the configuration of the job performance database.

[0025] Figure 10 It is a chart summarizing machine classification, ATT types, and remote ATT types.

[0026] Figure 11 It is a diagram showing the configuration of the simulation performance database.

[0027] Figure 12 It is a diagram showing the configuration of the examination result database.

[0028] Figure 13 It is a flowchart showing the processing when various information is logged in to the server in the job selection system.

[0029] Figure 14 It is a flowchart showing the processing of the job selection system when an operator selects a job.

[0030] Figure 15 It is Figure 14 a flowchart following

[0031] Figure 16 It is a diagram showing the search screen displayed on the information terminal.

[0032] Figure 17 This is a diagram showing the main device selection screen displayed on the information terminal.

[0033] Figure 18 This is a diagram showing the main device selection screen displayed on the information terminal.

[0034] Figure 19 This is a diagram showing the contract result screen. Detailed implementation mode

[0035] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The following embodiments are merely specific examples of the present invention and do not have the nature of limiting the technical scope of the present invention.

[0036] Figure 1 This is a block diagram showing the overall configuration of the operation selection system according to the embodiment of the present invention. The operation selection system includes a server 10, a contract awarding party terminal 20, a main device 30, and an information terminal 60. The contract awarding party terminal 20 is a device for the contract awarding party of the operation to contract the operation to the operator who remotely operates the construction machinery 50 using the main device 30. The server 10 is a device for prompting the operation contracted by the contract awarding party to the information terminal 60 held by the operator.

[0037] The main device 30 is an example of a remote operation device for remotely operating the construction machinery 50. In the present embodiment, the main device 30 is composed of an operation device that simulates the operator's seat of the construction machinery 50, and an operation lever identical to the operation lever of the construction machinery 50 is arranged at the same position as the construction machinery 50. Moreover, the main device 30 includes a seat on which the operator sits and a display unit 301 arranged in front of the seat for displaying the surrounding image of the construction machinery 50. The operator remotely operates the construction machinery 50 while observing the surrounding image displayed on the display unit 301 and manipulating the operation lever.

[0038] The main device 30 can be installed, for example, in the office of the contract awarding party, or in the office of the construction unit that undertakes the operation contracted by the contract awarding party, or in the facilities of a rental company that temporarily rents the main unit 30 to the operator. Examples of the facilities of the rental company can be rental meeting rooms, Internet cafes, amusement arcades, and rental offices, etc.

[0039] The slave device 40 is arranged on the operator's seat of the construction machinery 50 and directly operates the construction machinery 50 by tilting the operation lever arranged on the operator's seat of the construction machinery 50 based on the operation amount received from the main device 30. The slave device 40 is a device that operates the construction machinery 50 as a substitute for the operator who remotely operates the construction machinery 50. The construction machinery 50 is composed of construction machinery such as a hydraulic excavator and a hydraulic crane, and is remotely operated based on the operator who operates the main device 30.

[0040] For example, after an operator operates the joystick of the main device 30, a signal indicating the operation amount corresponding to the operation is sent to the slave device 40 via the communication path NT2. The slave device 40 that has received this signal tilts the lever of the operator's seat of the construction machinery 50 according to the operation amount indicated by the signal. Thus, the operation amount corresponding to the operation amount of the lever input by the operator to the main device 30 is input to the construction machinery 50 via the slave device 40, and the construction machinery 50 is remotely operated.

[0041] The information terminal 60 is composed of portable computers such as a smartphone and a tablet terminal held by the operator. Thus, the operator can access the server 10 by operating the information terminal 60, and can make a reservation for work at any time and anywhere. In addition, as the information terminal 60, in addition to the portable information terminal, a desktop computer can also be used.

[0042] The server 10 is communicably connected to the client terminal 20, the main device 30, the slave device 40, and the information terminal 60 via the network NT1 respectively. As the network NT1, a long-distance communication network composed of the Internet and a mobile phone communication network or the like can be used.

[0043] The main device 30 and the slave device 40 are communicably connected via the communication path NT2. As the communication path NT2, for example, the same long-distance communication network as the network NT1 is used. However, this is only an example, and as the communication path NT2, a communication path that can perform wireless communication between the main device 30 and the slave device 40 at a distance of about several tens of meters to several hundreds of meters, such as specific power-saving wireless and Bluetooth (registered trademark), can be used.

[0044] The client terminal 20 is composed of a computer such as a personal computer held by a work client who subcontracts work to the operator. Here, the work client is a person who plans work such as a project and subcontracts it to the operator, for example, an employee of a work subcontracting company. The operator can be, for example, an operator employed by a construction unit or an operator without a fixed unit.

[0045] The client terminal 20 includes a display unit 201, a control unit 202, an operation unit 203, and a communication unit 204. The display unit 201 is composed of, for example, a liquid crystal display. The control unit 202 is composed of a processor such as a CPU and is responsible for overall control of the client terminal 20. The operation unit 203 is, for example, a keyboard and a mouse, and accepts work requirement information input by the work client. The communication unit 204 is composed of a communication device that connects the client terminal 20 to the network NT1, and sends the work requirement information accepted by the operation unit 203 to the server 10 via the network NT1.

[0046] Figure 2AFIG. 0 is an example of an operation content input screen G1 for civil engineering work that is displayed on the client terminal 20 when the work contractor issues work to an operator. The operation content input screen G1 includes a machine information input field H1, a required skill level input field H2, and an operation plan input field H3. Figure 2B is Figure 2A an enlarged view of the operation plan input field H3.

[0047] Refer to Figure 2A , the machine information input field H1 is a field where the work contractor inputs information about the construction machinery 50 that is the object of remote operation in the issued work. Specifically, the machine information input field H1 includes a "site name" field and a "machine information" field. The "site name" field is a field for inputting the name of the site where the work is issued. The "machine information" field is a field for inputting parameters related to the specifications of the construction machinery 50 that is the object of remote operation. The "machine information" field includes "category", "model", "ATT", and "remote ATT" fields. The "category" field is a field for inputting the types of construction machinery 50 such as backhoe, small backhoe, power shovel, and crane. Figure 2A In the example of , "backhoe" is input. The "model" field is a field for inputting the model of the construction machinery 50 such as "SK200-10". The "ATT" field is a field for inputting the types of auxiliary equipment that the construction machinery 50 has, such as "standard" and "long arm". For example, when the type of auxiliary equipment is "standard", the auxiliary equipment consists of a boom and an arm. The "remote ATT" field is a field for inputting the types of remote auxiliary equipment installed at the remote end of the auxiliary equipment, such as "bucket" and "breaker".

[0048] The required skill level input field H2 is a field for the work contractor to input the required skill level for the operator for each operation content. Since the operation content input screen G1 is a civil engineering screen, in the required skill level input field H2, five operation contents, namely "excavation / loading", "ground finishing", "ground leveling", "slope finishing", and "slope leveling", are logged as operation contents.

[0049] "Excavation / loading" refers to the operation content of excavating soil, ground, and rock and loading the excavated soil or rock into a dump truck. "Ground finishing" refers to the operation content of finishing the ground leveled by "ground leveling". "Ground leveling" refers to the operation content of removing the unevenness of the ground to form a flat ground. "Slope finishing" refers to the operation content of finishing the slope leveled by "slope leveling". "Slope leveling" refers to the operation content of leveling the artificial slope formed by cutting or filling soil, that is, the slope. In addition, Figure 2A the operation contents cited are only examples, and other operation contents may also be included.

[0050] The "Required Skill Level" column has a "Total Payment System" column and an "Hourly Wage System" column. The "Total Payment System" column is a column in which the job contractor inputs the required skill level for the operator when the operator selects the contracting method of the "Total Payment System". The "Total Payment System" means that the operator undertakes the entire job period set by the job contractor for each job content.

[0051] The "Hourly Wage System" column is a column in which the job contractor inputs the required skill level for the operator when the operator selects the contracting method of the "Hourly Wage System". The "Hourly Wage System" is a contracting method in which the operator undertakes a part of the job period set by the job contractor for each job content. Hereinafter, the case where the operator undertakes the entire job period is referred to as "overall contracting", and the case where the operator undertakes a part of the job period is referred to as "partial contracting".

[0052] In this embodiment, the skill level of the operator is as Figure 3 shown in the grade determination table T3, and is divided into five skill levels of S, A, B, C, and D in descending order of skill level. The job contractor inputs the required skill level according to Figure 3 the specified grade.

[0053] Figure 3 is a diagram showing an example of the grade determination table T3. The grade determination table T3 is pre-registered in the memory of the server 10 and has an "Evaluation Score" column and a "Grade" column. In Figure 3 the example, the grades are divided into five grades of S, A, B, C, and D in descending order of skill level. Therefore, S to D are sequentially registered in the "Grade" column of the grade determination table T3. The range of evaluation scores for each grade from S to D is registered in the "Evaluation Score" column. This evaluation score is used when the skill level calculation unit 105 described later determines the skill level of the operator based on the operator's job performance and the like.

[0054] In Figure 2A the example of the required skill level input column H2, for "Excavation / Loading", the required skill level of the total payment system is "C" and that of the hourly wage system is "D", and overall, the required skill level of overall contracting is set higher than that of partial contracting. This is because if the required skill level is set too high in partial contracting, it will be difficult to recruit many operators, and the possibility of having uncontracted periods in a part of the job period of the corresponding job content will increase.

[0055] However, this is only an example. For example, in Figure 2AAs shown in the "Slope Leveling" of the , the same required skill level can be set for both the overall contract and the partial contract. Alternatively, the required skill level for the partial contract can be set higher than that for the overall contract. In this way, the work contractor can also arbitrarily set the required skill level for the overall contract and the partial contract.

[0056] Reference Figure 2B . The work plan input column H3 is a column where the work contractor enters the work time period for each work content in the corresponding work. The work plan input column H3 has "Site Name", "Machine Information", "Work Content", "Required Skill Level", "Remuneration Amount" and an "Work Time Period" column with the title "April 3, 2021" added. The "Site Name" column and the "Machine Information" column display the information entered in the machine information input column H1. The "Work Content" column displays the work content listed in the required skill level input column H2. The "Required Skill Level" column displays the respective required skill levels for the "Lump Sum Payment System" and "Hourly Wage System" entered in the required skill level input column H2 for the work content. The "Remuneration Amount" column is a column where the work contractor enters the remuneration amount given to the operator for the work content. In this embodiment, the work contractor can enter the remuneration amount for the "Lump Sum Payment System" and the "Hourly Wage System" respectively in the "Remuneration Amount" column.

[0057] Reference Figure 4B .exist Figure 4B In the example shown, "14,400 yen" is entered as the remuneration amount for "Lump sum system" for "Excavation / Loading", and "2,000 yen" is entered as the remuneration amount for "Hourly system". Here, if the remuneration amount for "Lump sum system" is converted into hourly wages, the remuneration amount for "Excavation / Loading" is "2,400 yen" because the working time for "Excavation / Loading" is "6 hours", which is higher than the remuneration amount for "Hourly system". If one operator is responsible for the entire period of the work content, it is convenient for the work contractor because the burden of managing the work plan can be reduced. For this reason, Figure 4B In the example of , in order to make operators motivated for overall contracting, the remuneration amount for overall contracting is set higher than that for partial contracting.

[0058] Return to reference Figure 2BThe "Operation Period" column is a column for inputting the operation period during one day for the operation content at the site where the site name (here it is Site A) has been input in the "Site Name" column. Here, since the "Operation Period" column for inputting the operation period on April 3, 2021 is displayed, the title of "April 3, 2021" is added. Additionally, in the case where the operation at Site A consists of multiple days, a switching button for displaying the "Operation Time Period" column for other dates can also be set on the operation content input screen G1.

[0059] The "Operation Period" column is composed of a two-dimensional table with the horizontal axis as the time axis and the vertical axis as the operation content axis. Specifically, the "Operation Period" column is divided into a table shape by multiple vertical lines and multiple horizontal lines. The multiple vertical lines divide 24 hours into one-hour intervals, and the multiple horizontal lines divide the operation content into each type. Here, the "Operation Period" column consists of 24 hours × 5 = 120 cells.

[0060] The operation client can arbitrarily select the operation period by performing an operation of inputting and selecting the cells corresponding to the operation period (for example, clicking and dragging). For example, when selecting the operation period of "Excavation / Loading" from 9 o'clock to 12 o'clock, the operation client inputs and selects the operation of 4 cells in the first row from 9 o'clock to 12 o'clock. The display of the selected cells is switched from the default first color (for example, white) to another second color indicating selection. Thus, the operation client can conveniently confirm the selected operation period. Here, the "Operation Period" column selects the operation period in one-hour units, but this is only an example, and the operation period can also be selected in any time units such as 30 minutes, 10 minutes, 2 hours, 3 hours, etc.

[0061] When operating the construction machinery 50 remotely, since the operation client can recruit operators from all over the world, for example, the construction machinery 50 can be remotely operated by domestic operators during the day and overseas operators at night, so as to perform non-stop 24-hour operation. Therefore, the time axis of the "Operation Period" column is set to 24 hours from 1 o'clock to 24 o'clock.

[0062] Figure 4A It is a diagram showing an example of the final screen G3 displayed on the client terminal 20 when the operation client has completed the input of the operation content. Figure 4B is Figure 4AAn enlarged view of the operation plan input field H3 shown. The final screen G3 is displayed, for example, after the job contracting party has entered all the information required for the contracting operation in the job content input screens G1 and G2 and clicks the OK button (not shown). In addition, when the OK button is clicked, the various pieces of information entered are sent as job requirement information from the contracting party terminal 20 to the server 10.

[0063] In the final screen G3, the display of the required skill level input field H2 is omitted, and other than that, it is the same as the job content input screens G1 and G2.

[0064] In Figure 4B the example, for "Excavation / Loading", the cells from 1 o'clock to 6 o'clock are displayed in the second color, so it is known that the operation period from 1 o'clock to 6 o'clock is set. For "Ground Finishing", the color from 7 o'clock to 12 o'clock is displayed in the second color, so it is known that the operation period from 7 o'clock to 12 o'clock is set. Moreover, it can be seen that the operation periods are set in the same way for the remaining job contents. In addition, the second color can also be different colors for different job contents.

[0065] In addition, as shown in the "Required Skill Level" column and the "Remuneration Amount" column, it can be known that the higher the required skill level, the higher the remuneration amount is set. Thus, if the skill level is improved, one can contract for jobs with higher remuneration amounts, so it can give the operators the incentive to improve their skill levels.

[0066] Return to refer to Figure 1 . The server 10 is composed of a computer with a processor such as a CPU, a memory, and a communication function, and includes a communication unit 101, a display data generation unit 102, an extraction unit 103, a contracting management unit 104, a skill level calculation unit 105, and a database management unit 106. The server 10 also includes a first database 107, a second database 108, an operator database 109, a job performance database 110, a simulation performance database 111, an exam score database 112, and a job schedule database 113. Figure 1 The various databases shown are stored in the memory of the server 10. Moreover, in Figure 1 the display data generation unit 102 to the database management unit 106 can be implemented, for example, by having the CPU execute a program.

[0067] The communication unit 101 (an example of the first communication unit) is composed of a communication device that connects the server 10 to the network NT1, and receives the job requirement information sent from the contracting party terminal 20.

[0068] The display data generation unit 102 generates display data for displaying a selection screen on the information terminal 60 that is used to allow an operator to select any job and any main device 30 from one or more jobs and one or more main devices 30, based on the job requirement information stored in the first database 107 and the main device information (an example of remote operation device information) stored in the second database 108.

[0069] The job requirement information is information about one or more jobs contracted by the job contractor. Specifically, it is composed of information input by the job contractor using Figure 2A and Figure 2B the job content input screen G1. In Figure 2A and Figure 2B the example, as the job requirement information, it includes: the "site name" where the job is performed, the "machine information" used in the job, the "job content" indicating the contracted job, the "required skill level" required for each job, the "remuneration amount" for each job, and the information of the "operation period" desired by the job contractor for each job as shown in Figure 4B . In addition, one job contracted by the job contractor refers to, for example, the "site name" where the job is performed as shown in Figure 4A , one job content recorded in the "job content" of the job plan input column H3 as shown in Figure 4B , and the "operation period" corresponding to this job content.

[0070] Figure 5 is a diagram showing the configuration of the second database 108 that stores the main device information. In the second database 108, one record corresponds to one main device information, and it has columns for "main device ID", "main device name", "installation location", and "rental fee".

[0071] The "main device ID" is an identifier that uniquely identifies the main device 30. The "main device name" is the name of the main device 30. The "installation location" indicates the location where the main device 30 is installed. For example, the address of the installation location can be used, or the latitude and longitude of the installation location can be used. The "rental fee" is the fee that the operator pays to the main device administrator when using the main device 30.

[0072] It is expected that there will be operators like this: setting the main device 30 in facilities such as rental offices and Internet cafes, and charging the operator a rental fee as the price for lending the main device 30 to the operator. Refer to the "rental fee" when the operator uses the main device 30 held by such an operator. In addition, the rental fee is not necessarily charged from the operator. For example, when the operator is an employee of a construction company, it is possible that no rental fee is charged when the operator uses the main device 30 held by the construction company. In this case, 0 yen is stored in the "rental fee" column.

[0073] In addition, the "rental fee" can be set at different rates according to time periods. For example, the "rental fee" can be set higher at night (e.g., from 17:00 to 22:00) than during the day (e.g., from 8:00 to 17:00), and higher in the late night (e.g., from 22:00 to 8:00) than at night. Thus, the operator's enthusiasm for performing operations at night and in the late night can be enhanced. In addition, it is also possible to effectively recruit overseas operators who perform operations using time differences.

[0074] Here, the main device information can be input via the main device 30, or can be input by the main device management party that manages the main device 30 using their own information terminal.

[0075] In this embodiment, the selection screen includes an operation selection screen for allowing the operator to select any operation content and a main device selection screen for allowing the operator to select any main device 30. The display data generation unit 102 generates first display data for causing the operation selection screen to be displayed on the information terminal 60 based on the operation requirement information stored in the first database 107. As Figure 6A and Figure 6B shown, the operation selection screen G51 is a screen on which the operation content and the operation time period are displayed corresponding to each other and any time period of the operation time period can be selectively displayed. The generated first display data is displayed on the information terminal 60 using the communication unit 101.

[0076] Moreover, the display data generation unit 102 generates a main device selection screen based on the main device information stored in the second database 108. Details of the main device selection screen will be described later.

[0077] Figure 6A is a diagram showing an example of a display screen G5 displayed on the information terminal 60 when the operator selects a contracted operation. Figure 6B is in Figure 6A is an enlarged view of the portions displayed in G51A, G51B, and G51C of. The display screen G5 includes an operation selection screen G51 and an operation plan screen G52. Here, since the operations at sites A, B, and C are contracted from three operation contractors respectively, three operation selection screens G51 are displayed. In addition, the three operation contractors respectively send operation requirement information using their own contractor terminals 20.

[0078] The operation selection screen G51 and in Figure 2BThe job plan input column H3 of the description similarly has columns for "site name", "machine information", "job content", "required skill level", "remuneration amount", and "job period" with the title "April 3, 2021". Moreover, since these columns directly display the information input by the job contracting party into the job content input screen G1, detailed explanations are omitted. At site A, since the job contracting party has set job periods for 5 job contents from "excavation / loading" to "slope leveling", the job periods for these 5 job contents are displayed. On the other hand, at site B, since the job contracting party has not set job periods for "slope trimming" and "slope leveling", the display of these 2 job contents is omitted.

[0079] At site C, the job of demolition work has been contracted. Since the job contracting party has input 2 job contents of "demolish building (above 6m)" and "crushed stone loading", the job periods for these 2 job contents are displayed.

[0080] The job plan screen G52 is a screen that displays the job periods selected by the operator O1 from the job periods shown on the job selection screen G51 in correspondence with the job contents. Specifically, the job plan screen G52 has columns for "operator information", "job content", and "selected period". The operator ID and name of the operator O1 are displayed in the "operator information" column. The job content of the period selected by the operator O1 is displayed in the "job content" column. In addition, the job contents of the periods not selected by the operator O1 are not displayed in the "job content" column. Here, since periods have been selected for 3 job contents of "ground trimming", "demolish building (above 6m)", and "slope trimming", these 3 job contents are displayed.

[0081] The "selected period" column is composed of a two-dimensional table with the horizontal axis as the time axis and the vertical axis as the job content axis. The "selected period" column is divided into a table shape by multiple vertical lines and multiple horizontal lines. The multiple vertical lines divide the time axis into 1-hour intervals, and the multiple horizontal lines divide the job contents into each type. Here, the time axis is shown from 7 o'clock to 20 o'clock, but this is just an example, and it can also be shown from 1 o'clock to 24 o'clock.

[0082] At Figure 6A and Figure 6BIn the example, the operator O1 uses the operation unit 604 to input the operation OP1 for subcontracting a 2-hour operation period from 10:00 to 11:00 during the 6-hour period from 7:00 to 12:00 in the "ground finishing" at site A. For this purpose, the display control unit 602 of the information terminal 60 changes the display of two cells corresponding to the 2-hour period from 10:00 to 11:00 in the "ground finishing" on the operation plan screen G52 from the first color to the second color. Moreover, the display control unit 602 displays "site A" indicating the period at site A in these two cells. In addition, since the hourly wage for this period is 2300 yen, the display control unit 602 displays "2300" in each of these two cells.

[0083] Moreover, the operator O1 uses the operation unit 604 to input the operation OP2 for subcontracting a 4-hour operation period from 17:00 to 20:00 in the "slope finishing" at site A. For this purpose, the display control unit 602 of the information terminal 60 combines four cells corresponding to the 4-hour operation period from 17:00 to 20:00 in the "slope finishing" into one cell on the operation plan screen G52 and changes the display from the first color to the second color. Moreover, the display control unit 602 displays "site A" indicating the operation period at site A in the combined cell. And, since the remuneration for the combined cell is 13440 yen, the display control unit 602 displays "13,440" in the combined cell.

[0084] For the other operations OP3 and OP4, it is the same as operations OP1 and OP2, and the selected operation periods are displayed on the operation plan screen G52.

[0085] Moreover, in the "selected period" column, there is an "estimated income" column for notifying the operator O1 of the total remuneration. Here, since the total remuneration for the operation periods selected by operations OP1 to OP4 is 28640 yen, "28,640" is displayed in the "estimated income" column.

[0086] In this way, if an operation period is selected on the operation selection screen G51, the operation period is displayed on the operation plan screen G52. Therefore, the operator O1 can formulate an operation plan suitable for his own situation while inputting the operation of selecting an arbitrary operation period from the operation periods displayed for each operation content on the operation selection screen G51. Moreover, since the operation selection screen G51 and the operation plan screen G52 are displayed side by side on the display screen G5, the operator O1 can easily confirm the operation period he selected. Moreover, the operator O1 can also formulate an operation plan that can reach the target amount while browsing the amount displayed in the "estimated income" column.

[0087] Moreover, since the job selection screen G51 displays the remuneration amount by distinguishing between the lump-sum payment system and the hourly wage system, it is possible to present the operator O1 with judgment materials for whether to subcontract partially or overall.

[0088] Moreover, since the job selection screen G51 displays the required skill level by distinguishing between the lump-sum payment system and the hourly wage system, it is possible to present the operator O1 with judgment materials for whether the job content matches their skill level.

[0089] If the operator O1 finishes inputting to the job plan screen G52, they click the send button (not shown). Then, the communication unit 304 of the main device 30 sends the job selected by the operator through the job plan screen G52 as a first selection instruction to the server 10. Here, the first selection instruction includes, for example, information indicating the job selected by the operator O1 and the operator ID. The information indicating the job includes the site name, job content, and job period of the job selected by the operator.

[0090] Return to reference Figure 1 When the extraction unit 103 receives the search conditions input by the operator for searching the main device 30 through the communication unit 101, it extracts the main device 30 that meets the search conditions from the second database 108.

[0091] Here, as the search conditions, conditions such as searching for the main device 30 in the order from near to far relative to the position of the information terminal 60 or the position specified by the operator can be adopted. In this case, the extraction unit 103 only needs to extract a specified number of main devices 30 from the second database 108 in the order from near to far relative to the current position of the information terminal 60 or the position specified by the operator. In addition, the current position of the information terminal 60 is determined, for example, using the position information sent from a GPS sensor (not shown) provided in the information terminal 60.

[0092] Here, as the search conditions, conditions such as searching for the main device 30 in the order from low to high or from high to low according to the rental fee (an example of the usage fee) of the main device 30 can also be adopted. In this case, the extraction unit 103 only needs to extract a specified number of main devices 30 from the second database 108 in the order from low to high or from high to low according to the rental fee.

[0093] Here, the search conditions can also include conditions for specifying the reservation date and reservation time of the main device 30. In this case, the extraction unit 103 extracts the main devices 30 that are not reserved on the reservation date and reservation time specified as the search conditions from the job reservation database 113.

[0094] In addition, after the extraction unit 103 extracts the main device 30, the display data generation unit 102 generates second display data for displaying a main device selection screen for allowing an operator to select a desired main device 30 from the extracted main devices 30 on the information terminal 60, and transmits it to the information terminal 60 using the communication unit 101.

[0095] When the contracting management unit 104 receives, via the communication unit 101, a first selection instruction including the operation selected by the operator through the operation selection screen G51 and a second selection instruction including the main device ID of the main device 30 selected by the operator through the main device selection screen, the contracting management unit 104 contracts the operation of the operator by storing the operator ID included in the first selection instruction and the second selection instruction, the information indicating the operation included in the first selection instruction, and the main device ID included in the second selection instruction in the operation schedule database 113 in a corresponding manner.

[0096] Figure 7 FIG. shows the configuration of the operation schedule database 113. The operation schedule database 113 stores the operator ID, the information indicating the operations W1 to W4 selected by the operator through the Figure 6A and Figure 6B operation selection screen G51 shown, and the main device IDs of the main devices 30 selected by the operator for each of the operations W1 to W4 in a corresponding manner. In the Figure 7 example, the operator "OOO Taro" selects the operation W1 of "ground dressing" during the operation period of 2 hours from 8:00 to 9:00 at the site B, and selects the main device 30 with the main device ID "M001" for the operation W1. For this reason, the contracting management unit 104 stores the operator ID of the operator "OOO Taro", the information indicating the operation W1, and the main device ID "M001" in the operation schedule database 113 in a corresponding manner. Regarding Figure 7 the other operations W2 to W4 shown, the contracting management unit 104 also stores the operator ID, the information indicating the operation, and the main device ID in the operation schedule database 113 in the same manner as for the operation W1.

[0097] In addition, when the Contract Management Department 104 receives the first selection instruction in the Communication Department 101, it can also contract the operations of the operators after performing the following contract determination process. That is, when the Contract Management Department 104 receives the first selection instruction in the Communication Department 101, it obtains the skill level of the operator from the Operator Database 109. Moreover, when the operation period indicated by the first selection instruction is partial contracting, if the obtained skill level meets the condition of being above the required skill level corresponding to partial contracting, the Contract Management Department 104 accepts the operator's contract for this operation period. In addition, when the operation period indicated by the first selection instruction is overall contracting, if the obtained skill level meets the condition of being above the required skill level corresponding to overall contracting, the Contract Management Department 104 accepts the operator's contract for this period.

[0098] Refer to Figure 4B , for example, when an operator with a skill level of "D" overall contracts the "Excavation / Loading" at Site A, since the required skill level for "Excavation / Loading" is "C", the Contract Management Department 104 does not accept this overall contract. On the other hand, when this operator partially contracts the "Excavation / Loading" at Site A, since the required skill level for "Excavation / Loading" is "D", the Contract Management Department 104 accepts this partial contract.

[0099] In addition, after the contract determination process is completed, the Contract Management Department 104 can also use the Communication Department 101 to send the contract acceptance result to the information terminal 60. In this case, the information terminal 60 can, for example, also switch the display of the cell corresponding to the un-contracted operation period from the second color to the first color, and display a message for notifying the un-contracted situation near the operation plan screen G52. On the other hand, when all the operation periods are contracted, the information terminal 60 can display a message for notifying that all the operation periods are contracted near the operation plan screen G52.

[0100] Figure 8 It is a diagram showing the composition of the Operator Database 109. The Operator Database 109 includes an Operator Table T1 and a Skill Level Table T2. The Operator Table T1 is a table in which the personal information of the operators pre-entered is logged. The Skill Level Table T2 is a table that exists for each entered operator.

[0101] Specifically, the operator table T1 has columns for "operator ID", "name", "nationality", "email address", and "password". The "operator ID" is an identifier used to uniquely identify each operator entered. The "name" represents the name of the operator. The "nationality" represents the nationality where the operator lives, such as Japan, Germany, etc. The "email address" represents the email address of the information terminal 60 held by the operator. The "password" is the password required when the operator logs into the job selection system.

[0102] The skill level table T2 has columns for "machine classification", "ATT type", "remote ATT type", and "skill level". The "skill level" of the operator for the combination of "machine classification", "ATT type", and "remote ATT type" is logged in this table. That is, the skill level for each combination of multiple parameters regarding the specifications of the construction machinery 50 is logged in the skill level table T2. The "machine classification" represents the weight range of the construction machinery 50 pre-divided such as 3t to 5t, 6t to 13t. The "ATT type" and "remote ATT type" represent the types of pre-specified attachment equipment and remote attachment equipment.

[0103] Since Figure 8 the skill level of the operator shown in the skill level table T2 for a machine classification of "3t to 5t", an ATT type of "standard", and a remote ATT type of "bucket" is "S", "S" is logged in the "skill level" column of the record in the first row.

[0104] Figure 8 The skill level shown is the skill level logged in the skill level table T2 that is calculated in advance by the skill level calculation unit 105 described later based on the operator's past job performance, etc.

[0105] Return reference Figure 1 . When the contract management department 104 accepts a contract for a certain operation period indicated by the first selection instruction, it issues an access code for allowing the operator to perform operations during the contracted operation period. This access code is sent to the main device 30 and the slave device 40 through the communication department 101.

[0106] The master device 30 and the slave device 40 that have received the access code store the access code in a memory (not shown). When an operator remotely operates the master device 30 for a contracted operation, the operator is required to input the access code. The master device 30 compares the access code input by the operator with the access code stored in the memory. If they match, the master device 30 sends the access code to the slave device 40. The slave device 40 compares the received access code with the access code stored in the memory. If they match, the slave device 40 sends an access permission notification to the master device 30. Thus, the operator can remotely operate the construction machinery 50 through the master device 30.

[0107] Here, the access code can also be the feature amount of the face image of the operator. In this case, the master device 30 acquires the face image of the operator through a camera (not shown) and extracts the feature amount of the face image. If the extracted feature amount of the face image matches the feature amount stored in the memory, the master device 30 sends the feature amount to the slave device 40. If the feature amount stored in the memory matches the sent feature amount, the slave device 40 sends an access permission notification to the master device 30. If the access code is composed of a character string, a third party who has stolen the character string can remotely operate through the master device 30 by inputting the character string. On the other hand, if the feature amount of the face is used as the access code, unauthorized third parties can be prevented from remotely operating.

[0108] In addition, the access code can also be an access code with a specified expiration date. As the expiration date, the completion date and time of the corresponding operation period can be adopted. Thus, it is possible to avoid the situation where the operator can remotely operate the construction machinery 50 used in the operation even though the operation has been completed.

[0109] The skill level calculation unit 105 calculates the total value of the evaluation scores for each operation content for each operator entered, by referring to the operation performance database 110, the simulation performance database 111, and the examination score database 112. The skill level is calculated by comparing the calculated total value of the evaluation scores with the grade determination table T3, and is logged into the operator database 109.

[0110] Hereinafter, the details of the calculation of the skill level will be described. Figure 9 It is a schematic diagram showing the configuration of the operation performance database 110. The operation performance database 110 is a database in which the past operation performance is logged for each combination of "model classification", "ATT type", and "remote ATT" for each operator entered. Figure 9In the example, an operation performance database 110 is shown where the "machine type classification" is "3t to 5t", the "ATT type" is "standard", and the "remote ATT type" is "bucket". Additionally, for the corresponding operator, there is also an operation performance database 110 for combinations other than the combination of "machine type classification" being "3t to 5t", "ATT type" being "standard", and "remote ATT type" being "bucket". Here, the "operation performance" refers to the performance of the operator for the operations contracted by the operation contractor, which is the performance of the operator remotely operating the construction machinery 50 at the actual operation site.

[0111] Figure 10 It is a chart that summarizes the machine classification, ATT type, and remote ATT type. As shown in Table 141, in this embodiment, the machine classification is divided into 5 categories: "3t to 5t", "6t to 13t",....., "over 50t". As shown in Table 142, in this embodiment, the ATT type is divided into 5 types: "standard", "long type", "separable", "three-fold", "short arm". As shown in Table 143, in this embodiment, the remote ATT type is divided into 5 types: "bucket", "rotary grab", "mechanical grab", "small piece crusher", "large piece crusher".

[0112] If an operator has operation performance for the machine classification, ATT type, and remote ATT type, for example, for the combination of "3t to 5t", "standard", and "bucket", and also has operation performance for the combination of "3t to 5t", "long type", and "bucket", then there are 2 operation performance databases 110 corresponding to these 2 combinations.

[0113] Return for reference Figure 9 The operation performance database 110 has columns for "operation content", "basic bonus points", "operation time", and "evaluation score". Various operation contents are logged in the "operation content" column. Here, 5 operation contents, namely "excavation / loading", "ground finishing", "ground leveling", "slope finishing", and "slope leveling", are logged. The cumulative operation time of the operator for each operation content of a certain operation with operation performance is logged in the "operation time" column.

[0114] The "basic bonus points" refer to a pre-specified coefficient multiplied by the operation time input to the "operation time" column. Here, the value of the basic bonus points is set such that the higher the difficulty level of the operation content, the higher the basic bonus points. The "evaluation score" is a value represented by the product of the basic bonus points and the operation time of each operation content. Since the higher the evaluation score, the higher the difficulty level of the operation and the higher the skill level required for the operator.

[0115] The skill level calculation unit 105 calculates, in the operation performance database 110, an evaluation score obtained by multiplying the operation time by a reference bonus for each operation content, and logs it in the "evaluation score" column. In addition, in Figure 10 operation contents of five civil engineering works from "excavation / loading" to "slope leveling" are logged because the operator has operation performance for these operation contents. For example, if the operator has operation performance for demolition work, operation contents related to demolition work can also be logged. In this way, in the operation performance database 110, the operation contents with operation performance are logged in correspondence with the cumulative value of the actual operation time for each of these operation contents.

[0116] Figure 11 FIG. is a diagram showing the configuration of the simulation performance database 111. The simulation performance database 111 exists for each registered operator and is a database that logs the performance of the training in which the operator remotely operates using the simulator equipped in the main device 30. The simulation performance database 111 has columns of "operation content", "basic bonus", "operation time", and "evaluation score". In the "operation content" column, the operation content trained by the operator using the simulator is logged. In the "operation time" column, the cumulative value of the training time for each operation content trained by the operator using the simulator is logged. "Basic bonus" and "evaluation score" are the same as Figure 10 the case described.

[0117] The skill level calculation unit 105 calculates, in the simulation performance database 111, an evaluation score obtained by multiplying the operation time by the basic bonus for each operation content, and logs it in the "evaluation score" column. In addition, in Figure 11 operation contents related to five civil engineering works from "excavation / loading" to "slope leveling" are logged because the operator has training performance for these operation contents. In this way, in the simulation performance database 111, the operation contents with training performance, the cumulative value of the actual training time for each of these operation contents, and the evaluation score for each of these operation contents are logged in correspondence with each other.

[0118] Figure 12 FIG. is a diagram showing the configuration of the examination result database 112. The examination result database 112 exists for each registered operator and is a database that logs the pass / fail results of whether a prescribed examination implemented for each operation content is passed. The examination can ensure that the skill level of the operator for the prescribed operation content is above a certain level.

[0119] The examination result database 112 has columns for "examination content", "basic bonus points", "qualified or unqualified result", and "evaluation score". In the "examination content" column, the operation content of the implemented examination is logged. Here, since examinations were conducted on the three operation contents of "excavation / loading", "ground leveling", and "slope leveling", these three operation contents are logged in the "examination content" column. In the "qualified or unqualified result" column, the qualified or unqualified result of the examination is logged, logged as "1" in the case of passing and "0" in the case of failing. "Basic bonus points" and "evaluation score" are the same as the cases described in Figure 9 . However, for the basic bonus points, in order to be consistent in scale with the evaluation scores of the operation performance database 110 shown in Figure 9 and the simulation performance database 111 shown in Figure 11 , it is set to a value 50 times that of the evaluation scores of Figure 9 and Figure 11 .

[0120] The skill level calculation unit 105 calculates the total value of the evaluation scores of each operation content in the operation performance database 110, the evaluation scores of each operation content in the simulation performance database 111, and the evaluation scores of each operation content in the examination result database 112. For example, the total value of the evaluation scores of the operation performance database 110 is 410 (=60 + 20 + 60 + 45 + 225), the total value of the evaluation scores of the simulation performance database 111 is 275 (=82 + 54 + 45 + 24 + 70), and the total value of the evaluation scores of the examination result database 112 is 200 (=50 + 150). Therefore, the final total value of the evaluation scores calculated for the combination of "machine type classification: 3t to 5t", "ATT type: standard", and "remote ATT type: bucket" is 885 (=410 + 275 + 200). Moreover, if the skill level calculation unit 105 refers to the grade determination table T3, the grade of the final total value "885" is "S". Therefore, for this operator, the skill level for the combination of "machine type classification: 3t to 5t", "ATT type: standard", and "remote ATT type: bucket" is calculated as S. In addition, if there is also operation performance for other combinations of "machine type classification", "ATT type", and "remote ATT type" for the corresponding operator, the skill level calculation unit 105 can also calculate the total value of the evaluation scores for this combination and calculate the skill level.

[0121] In addition, the skill level calculation unit 105 can execute the process of calculating the skill level each time any one of the data in the operation performance database 110, the simulation performance database 111, and the examination result database 112 is updated, and update the skill level logged in the operator database 109.

[0122] Return reference Figure 1 The database management unit 106 manages the first database 107, the second database 108, the operator database 109, the operation performance database 110, the simulation performance database 111, and the examination result database 112.

[0123] After the database management unit 106 obtains the operation requirement information from the client terminal 20, it stores the operation requirement information in the first database 107.

[0124] In addition, after the database management unit 106 obtains the main device information from the main device 30, it stores the main device information in the second database 108.

[0125] In addition, after the database management unit 106 obtains the simulation result from the main device 30, it updates the simulation performance database 111 according to the simulation result. Thus, the resume of the simulation performed by the operator is stored in the simulation performance database 111.

[0126] Moreover, after the database management unit 106 obtains the pass / fail result of whether the operator passes the examination for a certain operation content, it updates the examination result database 112 according to the pass / fail result. The examination is, for example, a test provided by the provider of this operation selection system.

[0127] Moreover, after the database management unit 106 obtains the operation performance of the actual operation, it updates the operation performance database 110 with the operation performance.

[0128] In this way, in this embodiment, the operator not only performs the actual operation, but can also improve the skill level through training on the simulator, and if the examination is passed, the skill level is also improved, so that more operations can be contracted. For this reason, the operator can be given the enthusiasm to perform simulations and take examinations during the spare time of the actual operation to improve the skill level, and the overall skill level of the operator can be improved.

[0129] Return reference Figure 1 The main device 30 includes a display unit 301, a control unit 302, an operation unit 303, and a communication unit 304. The display unit 301 is composed of a display device such as a liquid crystal display disposed in front of the operator's seat of the main device 30. The control unit 302 is composed of a computer and is responsible for overall control of the main device 30. The control unit 302, for example, obtains an image around the construction machinery 50 captured by a camera (not shown) of the construction machinery 50 via the communication unit 304 and causes it to be displayed on the display unit 301 in real time. Moreover, the control unit 302 uses the communication unit 304 to send a signal representing the operation amount input based on the operation of the operation unit 303 to the slave device 40, and remotely operates the construction machinery 50 through the slave device 40.

[0130] In addition, when the communication unit 304 receives a reservation request sent from the server 10, the control unit 302 stores the reservation request in a memory (not shown). The reservation request includes the operator ID of the operator who performs the operation, the password of the operator, and information indicating the operation performed by the operator. The information indicating the operation includes the name of the site where the operation is performed, information indicating the content of the operation, information indicating the operation period, and the like.

[0131] The operation unit 303 includes various joysticks corresponding to various joysticks provided on the operator's seat of the construction machine 50, and accepts operations by the operator for remotely operating the construction machine 50. In addition, the operation unit 303 also includes various buttons for accepting input of information such as the operator ID and password.

[0132] The communication unit 304 is composed of a communication device that connects the main device 30 to the network NT1 and the communication path NT2.

[0133] The information terminal 60 includes a communication unit 601, a display control unit 602, a display unit 603, and an operation unit 604. The communication unit 601 (an example of the second communication unit) is composed of a communication device that connects the information terminal 60 to the network NT1. In this embodiment, the communication unit 601 receives the first display data, the second display data, etc. sent from the server 10. In addition, the communication unit 601 sends a first selection instruction including information indicating the operation selected by the operator through the operation selection screen G51 to the server 10. In addition, the communication unit 601 sends a second selection instruction including the main device ID of the main device 30 selected by the operator through the main device selection screen to the server 10.

[0134] The display control unit 602 generates a display screen G5 including the operation selection screen G51 according to the first display data received by the communication unit 601, and causes it to be displayed on the display unit 603. In addition, the display control unit 602 generates a main device screen according to the second display data received by the communication unit 601, and causes it to be displayed on the display unit 603.

[0135] The display unit 603 is composed of a display device such as a liquid crystal display under the control of the display control unit 602, and displays the display screen G5 and the like.

[0136] The operation unit 604 is composed of input devices such as a touch screen, a keyboard, and a mouse, and accepts various operations input by the operator.

[0137] Figure 13 It is a flowchart showing the process when various information is logged in to the server 10 in the operation selection system.

[0138] In S1501, the operation unit 203 of the contract awarding party terminal 20 receives the job requirement information input by the job contract awarding party. In S1502, the control unit 202 of the contract awarding party terminal 20 causes the job requirement information received by the operation unit 203 to be sent to the server 10. Here, various information input using Figure 2A the job content input screen G1 is sent as the job requirement information.

[0139] In S1511, the communication unit 101 of the server 10 receives the job requirement information. In S1512, the database management unit 106 of the server 10 causes the job requirement information received by the communication unit 101 to be stored in the first database 107. Thus, the job requirement information obtained by the mutual correspondence of information such as "site name", "machine information", "job content", "required level", "remuneration amount", and "job period" is stored in the first database 107.

[0140] In S1521, the operation unit 604 of the information terminal 60 receives the input of operator information including "operator ID", the operator's "name", "nationality", "email address", and "password". In S1522, the communication unit 601 of the information terminal 60 sends the operator information to the server 10. The operator inputs the operator information, for example, when newly registering for this job selection system. After that, the operator can log in to this job selection system using the operator ID and password included in the operator information.

[0141] In S1513, the communication unit 101 of the server 10 receives the operator information from the information terminal 60. In S1514, the database management unit 106 of the server 10 causes the operator information received by the communication unit 101 to be stored in the operator database 109. Thus, Figure 8 the "operator ID", the operator's "name", "nationality", "email address", and "password" of the corresponding operator in the operator table T1 of the operator database 109 shown are stored.

[0142] In S1531, the operation unit 303 of the main device 30 receives the input of the main device information performed by the main device management party. Here, the main device information is input by the main device management party, for example, when the main device 30 is newly registered for this job selection system. This input operation can be performed, for example, when the main device 30 is newly installed in the facility, or can be performed at an appropriate time after the installation.

[0143] In S1532, the communication unit 304 of the main device 30 sends the input main device information to the server 10. In S1515, the communication unit 101 of the server 10 receives the main device information.

[0144] In S1516, the database management unit 106 of the server 10 causes the communication unit 101 to store the master device information received in the second database 108. Thereby, the master device ID, the master device name, the installation location of the master device 30, and the rental fee of the corresponding master device 30 are stored in the second database 108.

[0145] Figure 14 It is a flowchart showing the processing of a job selection system when an operator selects a job. Figure 15 It is after Figure 14 The following flowchart. In S1611, the communication unit 601 of the information terminal 60 sends the authentication information input by the operator using the operation unit 604 to the server 10. Here, the authentication information includes the operator ID and password.

[0146] In S1601, the communication unit 101 of the server 10 receives the authentication information. At this time, as long as the operator ID and password sent as the authentication information are logged in the operator database 109, the server 10 allows the corresponding operator to log in and moves the processing to S1602. In addition, if the operator ID and password sent as the authentication information are not logged in the operator database 109, the server 10 sends a message indicating a login failure to the information terminal 60.

[0147] In S1602, the display data generation unit 102 generates first display data for causing a display screen G5 including a job selection screen G51 to be displayed on the information terminal 60 based on the job requirement information stored in the first database 107, and sends it to the information terminal 60 using the communication unit 101.

[0148] In S1612, the communication unit 601 of the information terminal 60 receives the first display data. In S1613, the display control unit 602 of the information terminal 60 generates a display screen G5 based on the first display data and displays it on the display unit 603. Thereby, Figure 6A and Figure 6B The display screen G5 including the job selection screen G51 and the job plan screen G52 shown is presented to the operator.

[0149] In S1614, the operation unit 604 of the information terminal 60 accepts the input of the job selected by the operator through the job selection screen G51. In this case, the operator selects a desired job from the job selection screen G51 and performs an operation of filling in the job in the job plan screen G52 to select a job.

[0150] In S1615, the communication unit 601 of the information terminal 60 sends a first selection instruction including information indicating the selected job and the operator ID of the operator who selected the job to the server 10. In S1603, the communication unit 101 of the server 10 receives the first selection instruction.

[0151] In S1604, the subcontract management unit 104 of the server 10 performs a determination process of determining whether the skill level of the operator is above the required skill level required for the job selected by the operator. The details of the determination process are as described above, so the description is omitted here. If the result of the determination process is that the skill level of the operator is above the required skill level, the process proceeds to Figure 15 S1701. If the skill level of the operator does not reach the required skill level, the process does not proceed to Figure 15 S1701. In this case, the subcontract management unit 104 only needs to send a message indicating that the selected job cannot be subcontracted to the information terminal 60.

[0152] In S1701, the display data generation unit 102 of the server 10 uses the communication unit 101 to send display data for allowing the operator to retrieve the retrieval screen of the main device 30 to the information terminal 60.

[0153] In S1711, the communication unit 601 of the information terminal 60 receives the display data of the retrieval screen. In S1712, the display control unit 602 of the information terminal 60 generates a retrieval screen based on the display data of the retrieval screen and displays it on the display unit 603.

[0154] Figure 16 FIG. is a diagram showing the retrieval screen G110 displayed on the information terminal 60. The retrieval screen G110 includes a date input field R111, a reservation time input field R112, an address input field R113, a retrieval range input field R114, and a cost range input field R115.

[0155] The date input field R111 is a field for inputting the date on which the operator hopes to reserve the main device 30. When a date is input in the date input field R111, the main device 30 not reserved on that date is retrieved. The reservation time input field R112 is a field for inputting the reservation time on which the operator hopes to reserve the main device 30. When a reservation time is input in the reservation time input field R112, the main device 30 not reserved at that reservation time is retrieved.

[0156] The address input field R113 is a field for inputting the location where the operator wishes to perform operations. Here, the location where the operator wishes to perform operations does not refer to the actual operation site, but rather the location where the main device 30 is installed. Here, in the address input field R113, the address of the location where the operator wishes to perform operations can be input, or a location representing a region such as a station name can be input. The search range input field R114 is an input field for specifying the radius of the area centered on the location input to the address input field R113 as the search range for the main device 30. The cost range input field R115 is a field for inputting the cost range of the rental fee of the main device 30 desired by the operator. The cost range input field R115 includes a field for inputting the upper limit of the rental fee and a field for inputting the lower limit of the rental fee. When a cost range is input in the cost range input field R115, the main device 30 within that cost range is searched. In addition, it is not necessary to input the search conditions for the various search items displayed on the search screen G110. The operator can input the search conditions for the desired search items.

[0157] Return to reference Figure 15 . In S1713, the operation unit 604 of the information terminal 60 accepts the search conditions input by the operator through the search screen G110. In S1714, the communication unit 601 of the information terminal 60 sends the input search conditions as a search request to the server 10. Here, the communication unit 601 can send the search request to the server 10 on the occasion of inputting the operation of selecting the search button B110 on the search screen G110.

[0158] In S1702, the communication unit 101 of the server 10 receives the search request. In S1703, the extraction unit 103 of the server 10 extracts the main device 30 that meets the search conditions indicated by the search request from the second database 108.

[0159] Here, regarding the search conditions for the date and reservation time, the extraction unit 103 can extract the main device 30 that is not reserved at the corresponding date and reservation time by referring to Figure 7 the job reservation database 113 shown. In addition, regarding the search conditions for the search range, the extraction unit 103 can extract the main device 30 within the search range by referring to the information stored in the "installation location" column of the second database 108. In addition, regarding the search conditions for the cost range, the extraction unit 103 can extract the main device 30 whose rental fee is within the cost range by referring to the information stored in the "rental fee" column of the second database 108.

[0160] In S1704, the display data generation unit 102 of the server 10 generates second display data for causing a main device selection screen for allowing an operator to select a desired main device 30 from the main devices 30 extracted in S1703 to be displayed on the information terminal 60, and transmits it to the information terminal 60 using the communication unit 101.

[0161] In S1715, the communication unit 601 of the information terminal 60 receives the second display data. In S1716, the display control unit 602 of the information terminal 60 generates a main device selection screen using the second display data and displays it on the display unit 603.

[0162] Figure 17 It is a diagram showing the main device selection screen G120 displayed on the information terminal 60. The main device selection screen G120 includes a map screen G1211 that displays a marker M1 indicating a facility where a main device 30 that meets the search conditions is installed. In addition, the main device selection screen G120 includes a basic information display column R121 showing basic information about the facility and an idle status display column R122 showing the idle status of each time period of the main device 30 installed in the facility.

[0163] The operator operates the operation unit 604 to move the pointer P1 and position it on the marker M1 corresponding to the desired facility. Then, the display control unit 602 displays the basic information of the corresponding facility in the basic information display column R121. Here, information such as the address, access method, rental fee, and evaluation of the facility is displayed in the basic information display column R121. Here, the evaluation is a value obtained by statistically evaluating the facility by the operators who have used the main device 30 at this facility in the past. In addition, the date input by the operator as a search condition is displayed above the basic information display column R121.

[0164] The operator who determines to reserve the facility by referring to the basic information display column R121 positions the pointer P1 on the idle status display column R122. Then, the display control unit 602 causes Figure 18 the main device selection screen G121 shown to be displayed on the display unit 603. Figure 18 It is a diagram showing the main device selection screen G121 displayed on the information terminal 60. The difference between the main device selection screen G121 and the main device selection screen G120 is that the pointer P1 is displayed in the idle status display column R122, and the message displayed above the map screen G1211 is different.

[0165] In the idle status display bar R122, the idle status corresponding to the time period of each main device 30 possessed by the facility is indicated by the symbols "◎" and "×". "◎" indicates that the main device 30 is not reserved during the corresponding time period, and "×" indicates that the main device 30 is already reserved during the corresponding time period. The operator can reserve the desired main device 30 at the desired time period by selecting the cell marked with "◎" in the idle status display bar R122.

[0166] Specifically, the operator selects the cell marked with "◎" from the cells marked with "◎" in the idle status display bar R122 by positioning the pointer P1 within the desired cell. In addition, multiple cells in the idle status display bar R122 can be selected. Therefore, when selecting other cells, the operator only needs to position the pointer P1 at the corresponding cell. In this case, the cell selected by the operator can also change to a color indicating that it has been selected. In addition, when canceling a cell that has been temporarily selected, the operator only needs to position the pointer P1 on the selected cell again. After finally determining the cell, the operator inputs an operation to press the reservation button B121 displayed at the lower right of the main device selection screen G121.

[0167] Return to reference Figure 15 . In S1717, the operation unit 604 of the information terminal 60 accepts the operation of the operator to select the main device 30 through the above-mentioned main device selection screen G121.

[0168] In S1718, the communication unit 601 of the information terminal 60 sends a second selection instruction including the main device ID of the selected main device 30 to the server 10. In Figure 18 In the example of the main device selection screen G121 shown, a cell in the idle status display bar R122 is selected, and by this selection, the reservation time of the main device 30 is also selected. Therefore, the second selection instruction includes information indicating the reservation date and reservation time in addition to the main device ID.

[0169] In S1705, the communication unit 101 of the server 10 receives the second selection instruction. In S1706, the contract management unit 104 of the server 10 reserves the main device 30 for the operation by storing the operator ID included in the second selection instruction and the information indicating the operation contracted in S1604 in the operation reservation database 113 in a corresponding manner.

[0170] In this case, when the reserved time included in the second selection instruction conforms to the operation period of the operation contracted in S1604 or includes the operation period of the operation contracted in S1604, the contract management department 104 of the server 10 determines the reservation of the main device 30 and advances the process to S1707. On the other hand, when the reserved time included in the second selection instruction does not conform to the operation period of the operation contracted in S1604 or does not include the operation period of the operation contracted in S1604, the contract management department 104 may simply reject the reservation of the main device 30. In this case, the contract management department 104 may simply send the message for selecting the main device 30 to the information terminal 60 again. Moreover, the contract management department 104 may have the operator perform an operation of reselecting the main device 30 through the main device selection screen G121.

[0171] In S1707, the contract management department 104 of the server 10 sends a reservation request for the main device 30 whose reservation has been determined in S1706 by using the communication department 101. The reservation request includes the operator ID of the operator who reserves the main device 30, the reservation date, the reservation time, the access code of the operator, the information indicating the operation selected by the operator, and the like. In S1721, the communication department 304 of the main device 30 receives the reservation request. At this time, the control department 302 of the main device 30 stores the information included in the reservation request in the memory of the main device 30. Thus, the main device 30 can manage which operation is performed by which operator at which time period. In addition, since the memory stores the access code, the main device 30 can allow the operator to remotely operate the construction machinery 50 by accepting the input of the access code from the operator after the reserved time arrives.

[0172] In S1708, the contract management department 104 of the server 10 uses the communication department 101 to send display data for displaying a contract result screen indicating that the operation has been contracted to the information terminal 60. In S1719, the communication department 601 of the information terminal 60 receives the display data, and the display control department 602 causes the contract result screen to be displayed on the display unit 603.

[0173] Figure 19 It is a diagram showing the contract result screen G140. The contract result screen G140 includes a display column R141 indicating the operation content of the contracted operation, a main device display column R142 indicating information about the reserved main device 30, and a map screen G141 indicating the installation location of the reserved main device 30.

[0174] The display column R141 has columns for "Operator Information" and "Operation Period". In the "Operator Information" column, the operator ID and operator name of the operator performing the operation are displayed. In the "Operation Period" column, the operation content is set on the vertical axis and the operation period is set on the horizontal axis, and the operation content and the operation period are displayed corresponding to each other. In this example, the operation W1 of "ground leveling" at the site B during the 2-hour operation period from 8 o'clock to 9 o'clock is displayed. In addition, in this example, the operation W2 of "ground leveling" at the site A during the 2-hour operation period from 10 o'clock to 11 o'clock is displayed. In addition, in this example, the situation of contracting the operations W3 and W4 is displayed. In addition, the hourly wage paid to the operator is displayed in the cell representing the operation W1. However, since the operation W4 is a subcontracted operation, the total remuneration amount paid to the operator is displayed in the cell representing the operation W4 instead of the hourly wage. Moreover, a column for "Estimated Income Amount" is provided at the right end of the display column R141. In the "Estimated Income Amount" column, the total amount of the remuneration amounts paid to the operator for each of the operations W1 to W4 is displayed.

[0175] In the main device display column R142, the installation locations of the main devices 30 reserved for the two operations W1 and W2 for "ground leveling" are displayed in the first row, the installation location of the main device 30 reserved for the operation W3 for "building demolition" is displayed in the second row, and the installation location of the main device 30 reserved for the operation W4 for "slope leveling" is displayed in the third row.

[0176] In the map screen G141, the installation locations of the respective main devices 30 displayed in the main device display column R142 are marked by the markers M1, M2, and M3. In addition, in the main device display column R142, symbols (M1, M2, M3) representing the markers used in the map screen G141 are displayed at the left end of each main device 30. Thereby, the operator can easily understand which main device 30 is used at which operation period and installed at which location.

[0177] In Figure 19In the example, it is merely an example that the corresponding relationship between each main device 30 and the installation location is established by displaying the marked symbols (M1 to M3) on the map screen G141 and the main device display column R142. For example, the main device ID may also be displayed beside the marked symbols (M1 to M3) displayed on the map screen G141 and the main device display column R142, or the main device ID may be displayed in place of the marked symbols (M1 to M3). Alternatively, the installation locations of the respective main devices 30 may be marked on the map screen G141 using different-shaped marks M1 to M3, and marks M1 to M3 corresponding to the marks used on the map screen G141 may be displayed at the left ends of the respective main devices 30 in the main device display column R142. Alternatively, the installation locations of the respective main devices 30 may be marked on the map screen G141 using marks M1 to M3 of different colors, and the rows of the respective main devices 30 may be displayed in the main device display column R142 in colors corresponding to the colors used for marking on the map screen G141.

[0178] As shown in the display column R141, although the sites of the operations W1 and W2 are different from each other, as shown in the main device display column R142, the same main device 30 is reserved. Therefore, the operator does not need to actually move from site A to site B. When staying in the same place, after finishing the operation W1 at site B, the operation W2 at site A can be quickly started. Therefore, the operation efficiency of the operator can be significantly improved.

[0179] In this way, according to the present embodiment, the operator of the information terminal 60 can select an operation including the desired operation content at an arbitrary operation time through the operation selection screen G51, and can select the main device 30 for the operation through the main device selection screen G120. Therefore, according to the present embodiment, the information terminal 60 enables the operator to conveniently select the desired operation and the main device 30 for performing the operation.

[0180] The present invention may adopt the following modification examples.

[0181] (1) In the above embodiment, the operation selection screen G51 and the main device selection screens G120 and G121 are represented by different screens, but this is not limited thereto, and they may also be aggregated on one selection screen. In this case, the operator can select the operation and the main device 30 at the same time. In this case, the first selection instruction and the second selection instruction may also be sent as one selection instruction.

[0182] (2) Figure 1The job reservation database 113 shown may also be included in the second database 108. In this case, the extraction unit 103 can refer to the second database to extract the host device 30 that is idle on the reservation date and reservation time specified as the search condition.

[0183] (Summary of the Embodiment)

[0184] The technical features of this embodiment are summarized as follows.

[0185] A job selection system according to an aspect of the present invention is for an operator of a remote operation device that remotely operates construction machinery to select a job contracted by a job contractor, and includes: an information terminal for allowing the operator to select the job; and a server connected to the information terminal via a network; wherein, the server includes: a first database that stores in advance job requirement information about one or more jobs contracted by the job contractor; a second database that stores in advance remote operation device information including at least identifiers of each of one or more remote operation devices; a display data generation unit that generates display data for causing a selection screen to be displayed on the information terminal based on the job requirement information and the remote operation device information, the selection screen being for allowing the operator to select any job and any remote operation device from among the one or more jobs and the one or more remote operation devices; and a first communication unit that sends the display data to the information terminal, the information terminal includes: a second communication unit that receives the display data; a display control unit that generates the selection screen based on the display data and causes the selection screen to be displayed on a display unit; and an operation unit that accepts a selection instruction for the operator to select the any job and the any remote operation device through the selection screen, wherein, the second communication unit sends the selection instruction to the server, and the server further includes a contract management unit that contracts the operator's job by storing the identifier of the operator, the identifier of the remote operation device indicated by the selection instruction, and the job indicated by the selection instruction in association with each other.

[0186] According to this configuration, based on the job requirement information about one or more jobs contracted by the job contractor and the remote operation device information including at least identifiers of each of one or more remote operation devices, display data for causing a selection screen for allowing the operator to select any job and any remote operation device from among the one or more jobs and the one or more remote operation devices to be displayed on the information terminal is generated and sent to the information terminal.

[0187] Moreover, an operator selects an arbitrary operation and an arbitrary remote operation device through a selection screen and sends a selection instruction to the server. The server that has received the selection instruction stores the identifier of the operator, the identifier of the remote operation device indicated by the selection instruction, and the operation indicated by the selection instruction in correspondence with each other to contract the operation of the operator. Therefore, the operator can use the information terminal to arbitrarily select an operation and a remote operation device according to his or her own situation to arrange an operation plan. Therefore, according to this configuration, the operator can conveniently select a desired operation and a remote operation device for performing the operation by using the information terminal.

[0188] In the above configuration, preferably, the operation requirement information includes an operation content and an operation time period. The selection screen displays the operation content and the operation time period for the operation content in correspondence with each other, and selectively displays an arbitrary operation content among the operation contents and an arbitrary operation time period among the operation time periods. The selection instruction includes an instruction to select an arbitrary operation content through the selection screen, an instruction to select an arbitrary operation time period for the selected operation content, and an instruction to select the remote operation device to be used during the selected operation time period. The contract management unit contracts the operation of the operator by storing the identifier of the operator, the operation content indicated by the selection instruction, the operation time period indicated by the selection instruction, and the identifier of the remote operation device indicated by the selection instruction in correspondence with each other.

[0189] According to this configuration, since an arbitrary operation content among the operation contents and an arbitrary operation time period among the operation time periods are selectively displayed on the selection screen, the operator can use the information terminal to select a desired operation time period, a desired operation content, and a desired remote operation device, thereby being able to arrange an operation plan convenient for himself or herself. Therefore, the degree of freedom of the operator when selecting an operation can be improved.

[0190] In the above configuration, preferably, the first communication unit receives a search condition for the remote operation device performed by the operator from the information terminal. The server further includes an extraction unit that extracts the remote operation device that meets the search condition from the second database. The selection screen includes a search result screen showing the extracted remote operation device.

[0191] According to this configuration, since the remote operation device that meets the search condition input by the operator is extracted, the operator can select a desired remote operation device from the extracted remote operation devices. As a result, the burden on the operator when selecting a remote operation device can be reduced.

[0192] In the above configuration, preferably, the remote operation device information includes information indicating the installation location of the remote operation device, and the search condition includes a condition for searching the remote operation device in the order from near to far with respect to the position of the information terminal or the position specified by the operator.

[0193] According to this configuration, the operator can select a desired remote operation device from the remote operation devices located near the information terminal.

[0194] In the above configuration, preferably, the remote operation device information includes information indicating the usage fee of the remote operation device, and the search condition includes a condition for searching the remote operation device in the order from low to high or from high to low of the usage fee.

[0195] According to this configuration, the operator can conveniently select a desired remote operation device from the remote operation devices searched in the order from low to high or from high to low of the usage fee.

[0196] In the above configuration, preferably, the remote operation device information includes information indicating the reservation date and reservation time of the remote operation device, the search condition includes a condition for specifying the reservation date and reservation time of the remote operation device, and the extraction unit extracts from the second database the remote operation devices that are not reserved on the specified reservation date and reservation time as the search condition.

[0197] According to this configuration, the operator can conveniently select a desired remote operation device from the remote operation devices that are not reserved on the desired operation date and time period.

[0198] In the above configuration, preferably, the selection screen includes a map screen showing the installation location of the remote operation device extracted by the extraction unit.

[0199] According to this configuration, since the selection screen includes a map screen showing the installation location of the remote operation device that meets the search condition, the operator can conveniently grasp the installation location of the remote operation device.

[0200] In the above configuration, preferably, the operation requirement information further includes a first remuneration amount for overall contracting the operation time period and a second remuneration amount for partial contracting the operation time period, wherein the second remuneration amount is lower than the first remuneration amount, and the selection screen displays the first remuneration amount and the second remuneration amount corresponding to the operation content.

[0201] According to this structure, since the total amount of remuneration for the entire work period of the overall contract is higher than that for the partial contract work period, the operator can be motivated to overall contract. In this case, one operator is responsible for the entire period of the work content, which can reduce the burden of the work contractor to manage the work plan. On the other hand, when the work period is partially contracted, although the remuneration amount is lower than that of the overall contract, the operator can contract the work in the period that suits his own situation.

[0202] In the above-mentioned structure, preferably, the operation requirement information also includes a first required skill level required for the operator when the operation period is generally contracted and a second required skill level required for the operator when the operation period is partially contracted, and the server also includes an operator database, which stores the skill level of each operator among a plurality of operators, and the contracting management unit obtains the skill level of the operator who sent the selection instruction from the operator database when the second communication unit receives the selection instruction, and accepts the overall contracting or the partial contracting when the selection instruction is the overall contracting and the skill level meets the condition of being above the first required skill level, or when the selection instruction is the partial contracting and the skill level meets the condition of being above the second required skill level.

[0203] According to this structure, the work contractor can arbitrarily set the required skill level for overall contracting (first required skill level) and the required skill level for partial contracting (second required skill level) according to the content of the contracted work, and allow operators with skill levels above the required skill levels to contract.

Claims

1. A job selection system for allowing an operator of a remote operation device that remotely operates a construction machine to select a job contracted by a job contractor, characterized in that it includes: An information terminal for allowing the operator to select the job; And, A server connected to the information terminal via a network; wherein, The server has: A first database that pre-stores job requirement information on one or more jobs contracted by the job contractor; A second database that pre-stores remote operation device information including at least identifiers of each of one or more remote operation devices; A display data generation unit that generates display data for causing a selection screen to be displayed on the information terminal based on the job requirement information and the remote operation device information, the selection screen being for allowing the operator to select any job and any remote operation device from among the one or more jobs and the one or more remote operation devices; and, A first communication unit that sends the display data to the information terminal, The information terminal has: A second communication unit that receives the display data; A display control unit that generates the selection screen based on the display data and causes the selection screen to be displayed on a display unit; and, An operation unit that accepts a selection instruction for the operator to select the arbitrary job and the arbitrary remote operation device through the selection screen, wherein, The second communication unit sends the selection instruction to the server, The server further has a contracting management unit that contracts the operator's job by storing the operator's identifier, the identifier of the remote operation device indicated by the selection instruction, and the job indicated by the selection instruction in a corresponding manner, The remote operation device is composed of an operation device that simulates the operator's seat of a construction machine, The operator remotely operates the construction machine by means of the remote operation device.

2. The job selection system according to claim 1, characterized in that: The job requirement information includes job content and job time period, The selection screen displays the job content and the job time period for the job content in a corresponding manner, and selectively displays any job content among the job contents and any job time period among the job time periods, The selection instruction includes an instruction to select any job content through the selection screen, an instruction to select any job time period for the selected job content, and an instruction to select the remote operation device to be used during the selected job time period, and the contracting management unit contracts the operator's job by storing the operator's identifier, the job content indicated by the selection instruction, the job time period indicated by the selection instruction, and the identifier of the remote operation device indicated by the selection instruction in a corresponding manner.

3. The job selection system according to claim 1, characterized in that: The first communication unit receives a search condition for the remote operation device performed by the operator from the information terminal, The server further includes an extraction unit that extracts the remote operation device that meets the retrieval condition from the second database, and the selection screen includes a retrieval result screen indicating the extracted remote operation device.

4. The operation selection system according to claim 3, wherein: the remote operation device information includes information indicating the installation location of the remote operation device, the retrieval condition includes a condition for retrieving the remote operation device in the order from near to far with respect to the position of the information terminal or the position designated by the operator.

5. The operation selection system according to claim 3, wherein: the remote operation device information includes information indicating the usage fee of the remote operation device, the retrieval condition includes a condition for retrieving the remote operation device in the order from low to high or from high to low of the usage fee.

6. The operation selection system according to any one of claims 3 to 5, wherein: the remote operation device information includes information indicating the reservation date and reservation time of the remote operation device, the retrieval condition includes a condition for designating the reservation date and reservation time of the remote operation device, the extraction unit extracts from the second database a remote operation device that is not reserved on the designated reservation date and reservation time as the retrieval condition.

7. The operation selection system according to any one of claims 3 to 5, wherein: the selection screen includes a map screen showing the installation position of the remote operation device extracted by the extraction unit.

8. The operation selection system according to claim 2, wherein: the operation requirement information further includes a first remuneration amount for overall contracting the operation period and a second remuneration amount for partial contracting the operation period, wherein the second remuneration amount is lower than the first remuneration amount, the selection screen displays the first remuneration amount and the second remuneration amount corresponding to the operation content.

9. The operation selection system according to claim 8, wherein: the operation requirement information further includes a first required skill level required for the operator for overall contracting the operation period and a second required skill level required for the operator for partial contracting the operation period, the server further includes an operator database that stores the skill level of each of a plurality of operators, the contracting management unit, when the selection instruction is received by the second communication unit, obtains the skill level of the operator who sent the selection instruction among the plurality of operators from the operator database, and when the selection instruction is for overall contracting and the skill level meets the condition of being above the first required skill level, or when the selection instruction is for partial contracting and the skill level meets the condition of being above the second required skill level, accepts the overall contracting or the partial contracting.

10. A job selection method is a job selection method for a job selection system in which an operator of a remote operation device for remotely operating a construction machine selects a job contracted by a job contractor. It is characterized in that: Based on job requirement information about one or more jobs contracted by the job contractor and remote operation device information including at least identifiers of each of one or more remote operation devices, display data for causing a selection screen to be displayed on an information terminal is generated. The selection screen is for allowing the operator to select any job and any remote operation device from among the one or more jobs and the one or more remote operation devices. The display data is sent to the information terminal of the operator, and the selection screen is displayed on the information terminal. A selection instruction for the operator to select any job and any remote operation device through the selection screen is received from the information terminal. The identifier of the operator, the identifier of the remote operation device indicated by the selection instruction, and the job indicated by the selection instruction are stored in correspondence with each other to contract the job of the operator. The remote operation device is composed of an operation device that simulates the operation seat of a construction machine. The operator remotely operates the construction machine by means of the remote operation device.

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