JP2002105989A - Construction site management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction site management system capable of using effectively a construction machine. SOLUTION: The construction site management system 1 relative to the invention is provided with a plurality of construction machines E1, E2,..., equipped with a positional measure and a wireless communication device and terminal devices T1, T2,... connected to these construction machines E1, E2... through a communication means 10. Positional information in these construction machines E1, E2... are shown by these terminal devices T1, T2... and the positional information in a plurality of construction fields F1, F2... is indicated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal comprising: a plurality of construction machines provided with a position measuring device and a wireless communication device; and a plurality of terminal devices connected to the plurality of construction machines via communication means. The present invention relates to a construction site management system configured to manage a construction site by displaying information on the construction site and construction machines on a device.

[0002]

2. Description of the Related Art As means for managing a construction site where construction is being carried out by construction machines, a terminal device placed in a management unit and the like and each construction machine are connected by communication means so as to be capable of two-way communication. There is provided a construction site management system configured to display information about a machine on a terminal device.

In this construction site management system, a position measuring device and a wireless communication device are mounted on each construction machine, and information on each construction machine such as a current position and an operation time is transmitted to a management center and stored in a database. Displaying information on each construction machine, for example, the position information of the construction machine, on a map on a terminal device such as a personal computer placed at a management section or a construction site via a database from a management center via the Internet. The construction site is configured to manage construction machines in the construction site management.

[0004]

By the way, even when the construction site where the construction machine is dispatched reaches a plurality of locations, the management of the construction site has been conventionally performed for each construction site, and the same contractor is also used. Even so, construction machines are managed at each construction site.

[0005] For this reason, it is difficult to accommodate construction machines between construction sites. For example, there is no construction machine work at one construction site, but there is a shortage of construction machines at an adjacent construction site. Often there was an unreasonable situation, such as renting from.

At the same time, the average operating time of general-purpose construction machines such as hydraulic excavators is about 1000 hours / year at best, and it is difficult to say that construction machines are being used effectively at construction sites. Was.

The present invention has been made in view of the above circumstances, and has as its object to provide a construction site management system that enables efficient use of construction machines.

[0008]

In order to achieve the above object, a construction site management system according to the first aspect of the present invention includes a database for storing and storing position information of construction machines and position information of the construction site. It is characterized by comprising. According to the above configuration, the position information of the construction machine and the position information of the construction site are collectively stored and stored in the construction site management system. Construction machines can be managed collectively. Further, based on the position information of the construction site and the construction machine, an efficient vehicle allocation plan can be made based on the distance between the construction sites and the required operating time of the construction machine. Therefore, according to the construction site management system according to the first aspect of the invention, the construction machine is efficiently dispatched to the construction site,
By reducing the "play" of the construction machine, the construction machine can be used efficiently.

A construction site management system according to a second aspect of the present invention includes a construction machine having a position measuring device and a communication device, and a terminal device connected to the construction machine via the communication means. In addition to displaying the position information of the construction machine on the terminal device, the position information of the construction site is displayed. According to the above configuration, the position information of the construction machines and the position information of the construction site are displayed on the terminal device, so that the entire construction machine is collectively collected based on the distribution status of the construction machines at the construction site. Can be managed. Further, based on the position information of the construction site and the construction machine, an efficient vehicle allocation plan can be made based on the distance between the construction sites and the required operating time of the construction machine. Therefore, according to the construction site management system according to the second aspect of the present invention, the construction machine can be efficiently used by efficiently allocating the construction machine to the construction site and reducing "play" of the construction machine. it can.

A construction site management system according to a third aspect of the present invention includes a construction machine having a position measuring device and a communication device, and a terminal device connected to the construction machine via the communication means. On the map displayed on the terminal device,
In addition to displaying the position information of the construction machine, it is characterized by displaying the position information of the construction site. According to the above configuration, the position information of the construction machines and the position information of the construction site are displayed on a map, so that the entire construction machines are collectively collected based on the allocation status of the construction machines at the construction site. Can be managed. In addition, by displaying position information of a plurality of construction sites on a map, an efficient vehicle allocation plan can be made based on the distance between the construction sites and the required operating time of the construction machine. Therefore, according to the construction site management system according to the third aspect of the present invention, the construction machine can be efficiently used in the construction site by efficiently allocating vehicles to the construction site and reducing "play" of the construction machine. it can.

A construction site management system according to a fourth aspect of the present invention is the construction site management system according to the second or third aspect, wherein operation information is acquired from the construction machine, and the operation information is stored in the terminal device. Is displayed. According to the above configuration, since the operation information of the construction machine is displayed on the terminal device, it is possible to know the utilization of the construction machine, and it is possible to draft an optimal arrangement plan of the construction machine with respect to the construction site. Become.

A construction site management system according to a fifth aspect of the present invention is the construction site management system according to the second or third aspect, wherein site information indicating the status of the construction site is displayed on the terminal device. Features. According to the above configuration, since the site information of the construction site is displayed on the terminal device, it is possible to grasp the work status at the construction site and the usage status of the construction machine.

The construction site management system according to the invention of claim 6 is characterized in that the position information of the construction point is displayed and the position information of the material supplier is displayed.
According to the above configuration, the position information of the construction point and the position information of the material supplier are displayed, so that a nearby material supplier required at the construction point can be easily found.

According to a seventh aspect of the present invention, there is provided a construction site management system, comprising: a construction point provided with a construction point position management means having a position measuring device and a communication device; and a terminal connected to the construction point via the communication means. And a construction point for supplying a material to the terminal device. According to the above configuration, the construction point to which the material is to be supplied is clearly indicated on the terminal device.

According to an eighth aspect of the present invention, there is provided a construction site management system, comprising: a construction point provided with a construction point position management means having a position measuring device and a communication device; and a material transfer vehicle position provided with the position measuring device and the communication device. Material transport vehicle provided with management means, comprising a terminal device connected to the construction point and the material transport vehicle via communication means, while displaying the position information of the construction point on the terminal device, It is characterized by displaying the position information of the material transport vehicle. According to the above configuration, the position information of the construction point and the position information of the material transport vehicle are displayed on the terminal device, and based on the position information between the construction site and the material transport vehicle, The arrival time can be estimated, and an efficient work plan at the construction site can be made.

A construction site management system according to a ninth aspect of the present invention is the construction site management system according to the seventh or eighth aspect, wherein the construction point position management means is a portable information device mounted on a construction machine. It is a terminal. According to the above configuration, since the portable information terminal mounted on the construction machine is used as the construction point position management means, there is no need to specially manufacture the construction machine for the construction site management system, and the construction site management system is inexpensive. It is possible to build.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments. As shown in FIG. 1, a construction site management system 1 according to the present invention includes a plurality of construction machines E1, E2,... Such as bulldozers and hydraulic shovels, and a plurality of construction machines and offices of material suppliers. The terminal devices T1, T2,... Are communicably connected to each other via communication means 10 including a communication satellite Sc, a satellite earth station Sa, and the Internet I.

The plurality of terminal devices T1, T2,... Are used not only for the above-mentioned contractor and material supplier, but also for transporting the inside of a service car for carrying out maintenance and the like to the construction machine. Mobile work machine
(Trailer), the office of the user who owns the construction machines E1, E2,..., And the dealer or sales office of the construction machines E1, E2,.

A plurality of construction machines E1, E2,... Assigned to a plurality of construction sites F1, F2,.
A position measuring device (not shown) based on a global positioning system using the S satellite Sg and a wireless communication device (not shown) based on satellite communication using the communication satellite Sc are mounted.

The position information of each of the construction machines E1, E2,... Detected by the position measuring device is transmitted to the database management center 2 by the radio communication device (not shown).
Sent toward zero.

The operating time, engine load condition, hydraulic load condition, error information, cycle time information, etc. of each of the construction machines E1, E2... Are transmitted to the database management center 20 together with the position information.

Various kinds of information, such as positional information on the construction machines E1, E2,... Transmitted to the database management center 20, are stored in a database 20D in the database management center 20.

Here, the database 20D of the database management center 20 is composed of a plurality of databases described below.

Construction machine position database Construction machine ID, model type (connection option), construction machine position, operation time, operation load information, use reservation (reserved person, reservation period, use construction site ID), maintenance schedule, failure Remember the situation. -Contractor database Stores contractor IDs, business contents, and contact information.・ Construction site information database Utilization site ID, contractor ID, location, construction type, schedule,
Stores the owner's name, owner's contact information, work schedule, work progress, assigned work group (work group ID), equipment used, materials, and personnel. -Material supplier database Stores material supplier IDs, business details, and contact information.・ Material transfer vehicle position database Stores vehicle ID, model type, tonnage of vehicle, vehicle position, moving speed, delivery plan (date and time, target delivery destination), and information disclosure destination construction company ID.・ Work group productivity information database Stores work group IDs, work group members, used construction machine IDs, work time, production volume, work time breakdown, and waiting time breakdown.

On the other hand, the office of the contractor,
From a terminal device (for example, a personal computer) T1 placed at a construction site, a database management center 20 is provided.
Construction machines E stored in the database 20D of the
.. Can be browsed and referenced via the Internet I.

Further, the terminal T1 of the contractor can input and refer to the construction management information at each of the construction sites F1, F2,.
Can be used and the reservation status can be confirmed.

FIG. 2 shows a map M displayed on the terminal device T1.
Is a conceptual diagram of a plurality of construction machines E (E
1, E2...) And a plurality of construction sites F (F1, F2...) Are displayed by icons.

A plurality of construction machines E (E1, E2...) Are designed by using icons for designing excavators and bulldozers.
The position is displayed on the map M together with the type (vehicle type).

Further, a plurality of construction sites F (F1, F2...)
Is displayed on the map M by icons such as “planned”, “under construction”, and “completion completed” and by type of construction such as “road construction”, “bridge construction”, and “retaining wall construction”. , The position is displayed together with the construction status.

Here, the map M in FIG. 2 is an example in which the construction site F where the road construction is being performed is selected and displayed, and the icon indicating the construction site F is “road construction” and the “construction completed”. "Is designed to express.

Each construction site F (F1, F1) on the map M
The icon (2 ...) designates a position on the map M by an input device (mouse, trackball, or the like) of the terminal device T1, and selects the construction status (planning, construction, construction completion) from a pull-down menu. As a result, it is overwritten (pasted) at a predetermined position on the map M and displayed.

The construction types of the construction site F include road pavement, bridge, water supply, sewerage, retaining wall, slope protection, drainage, tunnel, and the like. At the position of the construction site F, an icon of a design corresponding to the construction type is displayed.

Here, on the map M, it is possible to display only the construction sites F of a specific construction type, and it is also possible to simultaneously display the construction sites F of the various construction types described above.

On the map M, it is also possible to limit the type (vehicle type) or size (capability) of the construction machine E and display only the construction site where the construction machine E meeting the conditions is dispatched. In addition, it is also possible to display on the map M only the construction site F where the construction is being performed at the specified specific date and time.

If a large number of construction machines E are dispatched to one construction site F, the construction machines E
It is needless to say that even in such a case, the position and type of each construction machine E can be clearly displayed by enlarging and displaying the map M in such a case.

As described above, a plurality of construction sites F (F1, F
2) and a plurality of construction machines E (E1, E2...) Are displayed on the same map M, so that the entire construction machine E (F1, F2. E
1, E2...) Can be managed collectively.

Each of the construction machines E (E1, E2,...) Has an engine speed, an engine torque, a hydraulic pump output, an operating speed of an arm boom, an excavation depth, together with various information including the operating time as described above. The operating load information which continuously stores the use of the crane hook and the like over time is further stored in the database management center 20 (see FIG. 1). 1).

By clicking the icon of the construction machine E on the map M shown in FIG. 2, various kinds of operation information including the operation time information based on the operation time of the construction machine E and the operation load information are displayed. Information can be referenced.

Thus, it is determined whether each construction machine F is actually operating, whether it can be replaced with a construction machine having a lower capacity, or whether it can be rewritten to a construction machine having a higher capacity. Can be monitored.

Clicking the icon of the construction site F displayed on the map M, or clicking the icon of the construction site F
By inputting the D number, the relevant construction site F
You can jump to the homepage of the management software that manages.

Here, the home page is dynamically generated from data stored in the database management center 20 (see FIG. 1) by a technique such as an active server page. In addition, a static homepage that each contractor separately contracts with a provider or the like and manages / creates may be used.

As described above, by jumping to the home page, the terminal device T1 displays the map M as shown in FIG.
In addition, it is possible to display a photograph P photographing the situation of the construction site F, and to display a process chart G indicating the progress of the construction work as shown in FIG.

As described above, since detailed construction site information such as the photograph P and the process chart G relating to the specific construction site F can be browsed and referred to, a plurality of construction sites F (F1, F2,...)
It is possible to centrally manage the status of work related to

On the other hand, as described above, the use of the construction machines E1, E2,... And the reservation status can be confirmed from the terminal device T1, and when the use reservation is applied from the terminal device T1, the construction to be used is desired. When the class of the machine and the period to be used are inputted, each construction site F (F1, F1
2) automatically calculates a vehicle allocation method in which the number of times of replacement of the construction machine E (E1, E2...) Is the smallest and the moving distance of each construction machine E (E1, E2.

More specifically, as shown in FIG. 5A, there are construction machines E1 and E2 of the same type and the same size.
1 is dispatched to the construction site F1 from 1st to 4th, and from 6th to
In the situation where the vehicle is dispatched to the construction site F3 on the 10th, while the construction machine E2 is dispatched to the construction site F2 on the 3rd to 6th, the construction machine is used at the construction site F4 for 5 to 10 days. In such a case, it is extremely inefficient that the construction machine E1 and the construction machine E2 are exchanged halfway in the construction site F4 as shown in FIG. 5 (b), and one construction machine E as shown in FIG. 5 (c).
2 is the most efficient if the vehicles can be dispatched continuously.

That is, for a specific construction machine n, Pn = A × (number of movements between construction sites) + B × (movement distance between construction sites) is evaluated (A and B are constants), and In the combination of all reservations for the class, a reservation method that minimizes P = ΣPn is selected.

At this time, the type of planning can be selected as follows by the selection switch in the terminal device T1. 1. Make a vehicle allocation plan that includes construction equipment that has already been allocated to the construction site.

2. Based on the operational load information, a vehicle allocation plan will be drafted for another class of construction machinery that can be replaced with smaller construction machinery. 3. A higher-class construction machine is also usable at the construction site, and a vehicle allocation plan including the higher-class construction machine is made. 4. Develop a dispatch plan, including renting construction equipment.

Here, when renting a construction machine, it is evaluated as Pn = C × (rental cost). In general, the evaluation is made so that the rental period is minimized, but it is also possible to make a plan in consideration of various discounts according to the rental period.

On the other hand, the database 20D of the database management center 20 shown in FIG. 1 stores the business contents of each material supplier, contact information, and link information in the case where the user has a homepage by applying.

Based on the data of these material suppliers,
As shown in FIG. 6, an icon indicating the position of the material supplier S and an icon indicating the position of the plurality of construction machines E are displayed on one map M on the terminal device T1 placed by the contractor. Can be.

Here, the map M in FIG. 6 is displayed by selecting a construction site where road construction is being performed and selecting a ready-mixed concrete contractor as a material supplier. In the map M of FIG. 6, the position where the construction machine E is located is regarded as the construction site, and the position of the work site F is indicated by the icon representing the construction machine E. Of course, an icon indicating the construction site F (see FIG. 2) may be displayed on the map M together with the icon indicating the construction machine E.

By clicking on the icon indicating the material supplier S on the map M shown in FIG. 6, information such as the business contents of the corresponding material supplier S is displayed. Detailed information can be viewed by jumping.

The display screen of the terminal device T1 shows an arbitrary construction machine or construction site, in other words, a material supply destination, based on the current position of the construction machine / construction site or the position of the construction site registered separately. An appropriate number (for example, up to five) of the material suppliers S can be displayed on the map M by icons in order of proximity to the construction point.

As described above, the position information of the material supplier is displayed on the terminal device T1 placed by the contractor, so that the contractor can view the material supplier near the construction point,
That is, a material supplier who can efficiently procure materials can be quickly found, and a new business opportunity is given to the material supplier.

Further, on the map M, of the plurality of construction machines E / construction sites F (construction points), only a specific construction machine E / construction site F (construction points) requiring supply of materials is selected. Can be displayed.

In this case, a specific construction machine E / construction site F
Only the icon indicating the (construction point) may be displayed, or among the plurality of icons, only the icon indicating the specific construction machine E / construction site F (construction point) may be blinked or the like to be displayed in a unique manner. Is also good.

As described above, the map M in which only the specific construction machine E / construction site F (construction point) requiring the supply of the material is selected and displayed is obtained from the terminal device T2 placed at the material supplier S. It is possible to browse.

Further, the terminal device T1 placed at the contractor attaches a map M indicating the position of the construction point, that is, the material supply destination, to the designated material supplier, and sends a material ordering mail. Can be sent.

By sending the above-mentioned mail, the contractor can easily order materials, while the material supplier can clearly grasp the position of the material supply destination.

For example, even when it is difficult to represent the material supply destination by an address (lot number) as in the case of forest road construction or the like, the location of the material supply destination is displayed on a map. It is possible to specifically know where to supply the material, thereby saving time for searching for a material supply destination and estimating the time required for material supply.

A material transporting vehicle C (see FIG. 1) such as a truck or a concrete mixer truck managed by a material supplier.
), A position measuring device (not shown) by a global positioning system using a GPS satellite Sg
Communication device by satellite communication using communication satellite Sc
(Not shown).

From the material transport vehicle C, the current position and the moving speed are transmitted at a constant time frequency from the wireless communication device (not shown).
Is transmitted to the database management center 20,
Stored in the database 20D.

From the material transfer vehicle C, the wireless communication device
(Not shown), the current position and the moving speed of the material transport vehicle C are transmitted to the database management center 20 at a fixed time frequency, and stored in the database 20D.

On the other hand, the terminal device T placed at the material supplier
In accordance with the instruction from 2, the information of the material supply destination is sent to the material transport vehicle C via the Internet I, and the material supply destination is instructed on the display screen of the car navigation device mounted on the material transport vehicle C. A map is displayed.

Here, the car navigation device is G
A device that displays the current position of the vehicle detected by the PS sensor on a map on a display screen.
1 and 2 function as terminal devices.

On the display screen of the car navigation device, as shown in FIG. 7, a map M in which the supply destination of the material is indicated by the icon of the construction machine E / construction site F (construction point) is displayed. Is the best transport route (not shown) to each material destination along with the current position of the self (material transport vehicle C)
Is displayed, and when there are a plurality of material supply destinations, the order of supply to each material supply destination (see FIG. 8) is displayed.

It is needless to say that the map M displayed on the display screen of the car navigation device can be referred to from the terminal device T1 placed at the contractor and the terminal device T2 placed at the material supplier. No.

Also, according to the instruction from the material supplier,
It is possible to specify to which contractor the information on the transportation by the material transportation vehicle C is disclosed.

As a specific example, as shown in FIG. 7, the material supply vehicle C supplies a material to a construction machine E of a contractor (A).
And the construction machine E of the contractor (B).
In the case where both the contractors (B) do not want to know the location of the construction machine E to the other party, supply the contractor (A) with materials other than the construction machine E as shown in FIG. A map M indicated by an icon i indicating a mere transfer place is disclosed,
Further, as shown in FIG. 8 (b), a map M in which a material supply destination other than the company's construction machine E is simply indicated by an icon i indicating a transfer position can be disclosed to the contractor (B).

Note that arrows a, b, and b in FIGS. 8 (a) and 8 (b)
“c” and “c” indicate the order in which the material transport vehicle C stops at a plurality of material supply destinations, that is, the order of supply to each material supply destination.

According to the above-described configuration, the material supplier can effectively manage the material transport vehicles owned by the material supplier, and can flexibly respond to a sudden delivery request by managing the empty material transport vehicles. It becomes possible.

Further, the construction machine E / construction site F (construction point) to which the material is delivered and the current position of the material transport vehicle C are displayed on the map M, so that the ready-mixed concrete and asphalt, etc. It is possible to accurately manage the delivery time of a product having deteriorated quality, and to supply a product (material) having good quality.

Further, management of how many materials are supplied by a material transport vehicle and how many materials are supplied to a specific construction point, and from which factory the material is supplied, are conventionally assigned to each material transport vehicle. As described above, by unifying the position information of the construction point and the position information of the material transport vehicle as described above, the management of various information related to the material transport as described above is digitized. It becomes possible.

On the other hand, for the contractor, the delivery destination of the material and the current position of the material transporting vehicle are displayed on the map M, so that the accurate arrival time of the material together with the transport routes of the plurality of materials can be grasped. This makes it possible to draft an efficient construction plan.

Here, the route of the material transport vehicle displayed on the map M not only indicates the position (route itself) but also the distance on the route, and the time required for material transport is not limited. It is effective in managing.

Further, taking into account the traffic congestion information monitored by a VICS (road traffic information communication system) or a traffic congestion monitoring system (Japanese Patent Application No. 2000-235024) previously filed by the present applicant, the estimated travel time (material arrival time) Time) may be displayed.
The arrival time at the material supply destination based on the current position of the material transport vehicle may be viewed by the material transport vehicle, the material supplier, and the installer.

Incidentally, the traffic congestion monitoring system (Japanese Patent Application No. 2000
-235024) is equipped with a traffic signal provided at the entrance where vehicles enter in the alternating traffic section of road construction, a vehicle detection device that detects the presence or absence of vehicles passing through the alternating traffic section, and further switches the display of the traffic signal. Control the direction in which vehicles can enter the alternating traffic section, and determine whether vehicles passing through the alternating traffic section continue to pass for the permitted time. The control device is provided with a control device that determines that traffic congestion has occurred when the traffic continuously occurs for each passage permission.

Further, the management of the material transport vehicles that are carried in and out of the construction site by the contractor is a measure of the amount of civil engineering work, but by monitoring the number and time of vehicles that have stopped at the construction site, It is possible to manage the progress of construction in one day without using special equipment.

Here, in order to prove that the material transport vehicle has arrived at the construction site, it is only necessary to manage the fact that the material transport vehicle has arrived near the construction site. By confirming the arrival of the material transport vehicle at the construction site, pressing the confirmation button, and transmitting the signal to the material transport vehicle using short-range communication means, the direct interaction between the construction site and the vehicle is possible. There is a way to check.

As a method of managing the progress of each construction site, there is a method of monitoring the position of each worker.
For example, by carrying / attaching a GPS device and a wireless communication device to each worker and the construction machine, the position of each worker can be monitored from the construction machine.

As a result, the status of the work can be automatically determined as follows. (a) When a worker is near the construction machine and the construction machine is operating, excavation (backfilling) is in progress. (b) If the worker is near the construction machine and the construction machine is not operating, installation work of a structure such as a pipe is in progress. (c) If the worker is away from the construction machine and the construction machine is operating, it is taking a break.

By comparing the status of the work determined in this way with the progress up to the previous day, for example, in the case of sewage works, it is possible to know the progress of pipe burial earlier or later than usual.

Further, the GPS device and the radio communication device carried / mounted on each worker and the construction machine also serve as safety devices for avoiding interference between the construction machine and the worker. That is, by notifying the operator of the construction machine of the position of another worker, an accident in which the other worker enters the working machine operation range of the construction machine without noticing the operator, or the operator's It is possible to prevent an accident occurring due to misidentification of the position.

In the above-described embodiment, a position measuring device and a radio communication device as construction point position management means are mounted on each of a plurality of construction machines in order to manage the position of the construction point. As the construction point position management means (position measurement device + wireless communication device), a position measurement device for specifying a position based on a distance from a plurality of mobile phone base stations and a wireless communication device using mobile phone communication are used. The mobile phone provided may be employed, and the mobile phone may be carried by a worker who is on a construction machine.

Further, as the construction point position management means, not only the above-mentioned portable telephone, but also various types of PDAs (personal data assistance) comprising a position measuring device and a radio communication device can be adopted. Needless to say.

In each of the above embodiments, the position of the construction machine or the construction site is graphically displayed on the map displayed on the terminal device, but the position of the construction machine or the construction site is described by the address. The displayed character information can be displayed on the terminal device, or the address can be read out by voice and displayed. Alternatively, the mutual movement distance between the construction machine and the construction site may be displayed on the terminal device by text or voice.

Further, the reservation information of the construction machine is inputted from the terminal device, and based on the distance information obtained from the construction site and the position information of the construction machine stored in the database, the optimum dispatch instruction of the construction machine obtained by the system is obtained. , Can be configured to be displayed by characters or voice.

As described above, by displaying various kinds of information by characters and voices, a small portable information terminal having no large-sized display device can be employed, and the portable information terminal can be used hands-free during driving. It can also support terminal devices.

Further, in the above-described embodiment, in order to manage the position of the material transporting vehicle, the position measuring device and the radio communication device as the material transporting vehicle position managing means are mounted on the material transporting vehicle. A mobile phone or various types of PDAs may be employed in place of the material transporting vehicle position management means and carried by an operator boarding the material transporting vehicle.

Further, it is possible to directly control the position of the construction site by carrying a mobile phone or various PDAs to a worker at an actual construction site such as a road construction section.

As described above, by using the portable terminal typified by the portable telephone for the position management of the construction machine, the construction site, and the material transporting vehicle, the configuration of the construction site management system can be simplified and the cost can be reduced. This can be achieved, and the degree of freedom in diverting to various industries becomes extremely large.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of a construction site management system according to the present invention.

FIG. 2 is a conceptual diagram showing a display example of a map on a terminal device.

FIG. 3 is a conceptual diagram showing a display example of a map and site information on a terminal device.

FIG. 4 is a conceptual diagram showing a display example of a map and site information on a terminal device.

FIGS. 5A to 5C are conceptual diagrams showing modes of use reservation for a plurality of construction machines.

FIG. 6 is a conceptual diagram showing a display example of a map on a terminal device.

FIG. 7 is a conceptual diagram showing a display example of a map on a terminal device.

FIGS. 8A and 8B are conceptual diagrams showing a display example of a map on a terminal device.

[Explanation of symbols]

 1: Construction site management system, 10: Communication means, 20: Database management center, E (E1, E2 ...): Construction machine, F (F1, F2 ...): Construction site, T1, T2 ...: Terminal device, M: map.

Claims (9)

[Claims] 1. A construction site management system comprising a database for storing and storing position information of construction machines and position information of a construction site. 2. A construction machine comprising a position measuring device and a communication device, and a terminal device connected to the construction machine via the communication means, wherein the terminal device displays position information of the construction machine. A construction site management system characterized by displaying position information of the construction site. 3. A construction machine having a position measuring device and a communication device, and a terminal device connected to the construction machine via the communication means, wherein the construction machine is displayed on a map displayed on the terminal device. A construction site management system characterized by displaying the position information of the construction site and the position information of the construction site. 4. The construction site management system according to claim 2, wherein operation information is acquired from the construction machine, and the operation information is displayed on the terminal device. 5. The construction site management system according to claim 2, wherein site information indicating a condition of the construction site is displayed on said terminal device. 6. A construction site management system for displaying position information of a construction point and displaying position information of a material supplier. 7. A construction point provided with a construction point position management means provided with a position measuring device and a communication device, and a terminal device connected to the construction point via communication means, wherein the terminal device has a material. A construction site management system characterized by displaying a construction point for supplying the construction. 8. A construction point provided with a construction point position management means provided with a position measuring device and a communication device, and a material transfer vehicle provided with a material conveyance vehicle position management means provided with a position measurement device and a communication device, A terminal device connected to the construction point and the material transport vehicle via means, and displaying the position information of the construction point on the terminal device, and displaying the position information of the material transport vehicle. Characteristic construction site management system. 9. The construction site management system according to claim 7, wherein said construction point position management means is a portable information terminal mounted on a construction machine.