KR100758227B1 - remote management system for construction machinery - Google Patents

Abstract

The present invention relates to a construction machine remote management system, a main control device that manages all the electrical input and output associated with the operation of the machine to a construction machine, such as excavators, wheel loaders, and informs the operating state of the machine to the driver, the driver inputs the operation An information acquisition / transmission unit configured to provide a monitor capable of performing a transmission and a wireless communication terminal for transmitting and receiving data with a remote site, and to transmit operation information of the machine; Receives data sent / transmitted from construction equipment on the ground and relays it back to the ground. Receives data from this communications satellite and reprocesses the data in a predetermined format such as e-mail format. An information transmission unit comprising a communication satellite base station for relay management and a dedicated line or a public line installed to transmit data from the communication satellite base station to another place on the ground; It consists of an information display / management unit consisting of a web server that displays the operation information of each construction machine on the computer monitor and exchanges the operation history through a database through data exchange with the gateway station of the communication satellite base. It is characterized in that the computer is configured to access the operation and history information of the construction machine through the Internet.

Construction machine remote management system

Description

Remote management system for construction machinery

1 is a block diagram showing a construction machine remote management system according to the present invention,

2 is a construction machine main control device of the construction machine remote management system according to the present invention

Flow chart for managing daily fuel consumption data in a.

Explanation of symbols on the main parts of the drawing

1: Construction machinery 2: Communication satellite

3: gateway for communication satellite base 4: leased line or shared line

5: Construction equipment management web server 6: System user

7: construction machinery main control device 8: monitor

9 wireless communication terminal 11 microprocessor

12: signal processor 13: fuel sensor

14: engine speed sensor 15: idle pressure switch

16: storage device 17: communication interface unit

18: communication interface unit 19: display window

20: button

The present invention relates to a construction machine remote management system, and more particularly to a construction machine remote management system including a construction machine main control unit having a means for managing machine operation information.

In general, the remote control system of construction machinery receives various digital and analog sensor signals installed in the hydraulic system including the engine, pump, transmission, and main control valve in the construction machinery such as excavators and wheel loaders. Data transfer is made, and the construction machine operation data is databased so that the machine manager or the machine repairer can easily recognize the operation information or the history management contents of the construction machine of interest through the internet network so that the machine can operate optimally. A system that supports condition maintenance.

Herein, the operation information of the construction machine includes various operation state information such as the coolant temperature, the hydraulic oil temperature, the fuel level, the battery voltage, the engine speed, the running speed, the warning, and the valve driving state displayed on the monitor of the construction machine driver's seat. Although often used interchangeably, the operational information required in terms of machine management is strictly distinguished.

That is, only the data necessary for the target person (machine manager or machine repairman) to use the construction machine remote management system should be processed and provided as information for easy recognition.

In addition, the remote control system for construction equipment transmits data to a web server using a wireless service fee service network licensed from the main control unit (separately dedicated device can be installed) installed for each construction machine. Should be provided economically.

For example, if the system is configured to transmit data every time the machine starts and stops the engine for information on the machine's uptime, if the number of engine start-up operations is increased according to the type of work or by unintentional manipulation However, there is a problem that the communication cost imposed in proportion to the amount of data using the communication service acts as a significant burden.

Accordingly, the present invention has been made to solve the problems described above, and has a low communication cost by having a means for the main control device in the construction machine to manage the operation information that is deemed necessary for the machine manager or machine repairer The purpose is to provide a construction machine remote management system that can support the maintenance of the machine.

The construction machine remote management system according to the present invention for achieving the above object is a main control device that manages all the electrical input and output associated with the operation of the machine to the construction machine represented by excavators, wheel loaders, etc., and informs the driver the machine operation state An information acquisition / transmission unit configured to provide a monitor for allowing a driver to perform an operation input, and a wireless communication terminal for transmitting and receiving data to and from a remote site, for transmitting operation information of the machine;

Receives data sent / transmitted from construction equipment on the ground and relays it back to the ground. Receives data from this communications satellite and reprocesses the data in a predetermined format such as e-mail format. An information transmission unit comprising a communication satellite base station for relay management and a dedicated line or a public line installed to transmit data from the communication satellite base station to another place on the ground;

It consists of an information display / management unit consisting of a web server that displays the operation information of each construction machine on the computer monitor and exchanges the operation history through a database through data exchange with the gateway station of the communication satellite base.

It is characterized in that the system user is configured to access the operation and history information of the construction machine through the Internet from any computer.

Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.

1 is a block diagram showing a construction machine remote management system according to the present invention, Figure 2 is a flow chart for managing the daily fuel consumption data in the construction machine main control device of the construction machine remote management system according to the present invention.

As shown in these drawings, the construction machine remote management system according to the present invention includes a main control device (7) for managing all the electrical input and output associated with the operation of the machine to the construction machine (1) represented by excavators, wheel loaders, etc., A monitor 8 for informing the driver of the machine operation state and allowing the driver to perform an operation input, and a wireless communication terminal 9 for transmitting and receiving data to and from a remote site, are provided for acquiring and transmitting information for operating the machine. Wealth;                     

A communication satellite (2) which acts as a relay to the ground by receiving operation information data acquired / sent from the construction equipment (1) on the ground, receives data from the communication satellite (2), and stores the data in a predetermined format such as an e-mail format. Communication satellite base gateway station (3), which reprocesses and relays data to other places on the ground, and dedicated or shared circuits installed so that data can be transferred from this satellite station gateway station (3) to other places on the ground. An information transfer section comprising (4);

An information display / management unit comprising a web server (5) for displaying the operation information of each construction machine (1) on a computer monitor and exchanging data with the communication satellite base station (3), and managing the operation history through a database. Consist of

The system user can access the operation and history information of the construction machine 1 from any computer through the Internet.

On the other hand, the main control device 7 has a signal processor 12 for filtering signals from various sensors installed in the construction machine 1 based on the microprocessor 11, the fuel sensor 13, the engine speed sensor 14, the idle pressure switch 15, and receives a variety of sensor signals are input to convert to a signal level that can be processed by the microprocessor (11).

The microprocessor 11 reads a signal received from the signal processing unit 12 and manages it as operation information, while storing main operation information in the storage device 16, which is a nonvolatile memory, so that power is not lost even when the power is turned off. It is made up all the time.

In addition, the main control unit 7 has a display window 19 for displaying a machine operating state or a selection menu to a driver, and a monitor 20 having a button 20 for a driver or a machine repairer to perform menu selection and setting input. A communication interface unit 1 (17) for data communication with (8) and a communication interface unit 2 (18) for data communication with the wireless communication terminal 9 are provided.

The wireless communication terminal 9 has a built-in GPS receiver to grasp the location information, the construction machine main control device dedicated to the construction machine remote management system including the GPS reception function and data wireless communication terminal function in consideration of the installation space ( 7) Manufacturing and installing can perform the same function.

As described above, the construction machine remote management system according to the present invention aims to provide construction machine operation information at a low communication cost, the main control unit 7 means for managing the main operation information required in terms of machine management It is configured to have.

The main operation information is managed by the main control unit 7 as reference data, and unless there is a special event, data transmission is performed a predetermined number of times only on the operation date of the construction machine, which is a considerable amount of communication. The cost can be reduced.

As described above, the database user manages the corresponding information for each operation date received in the web server 5 so that the system user can receive operation information for each period of the construction machine of interest.

However, since the operation information at the time when the system user 6 is actually connected to the web server is not known as the data transmission cycle from the construction machine 1, the current operation information can be viewed by selection on the web screen. Configure bidirectional communication.

That is, the main control unit 7 transmits the self-managed daily operation information every operation day, but transmits the current operation information when the request of the system user 6 is generated by the signal transmission in the reverse order of the operation information transmission route. It consists of construction machine remote management system that can communicate.

The operation information management means of the main control device 7 will be described below.

In the case of the operation date of the operation information, since the main control device 7 itself cannot know the operation date and time, the local time correction value in the internal storage device 16 and the wireless communication terminal 9 having a built-in GPS receiver 9 From the absolute date and time obtained through data communication.

In the above-described embodiment, when the key-on power source is input to operate the construction machine, the main controller 7 receives the absolute date and time data from the wireless communication terminal 9.

This is because Greenwich Mean Time, called GMT (Greenwich Mean Time), requires local time corrections depending on where the construction machinery is located.

While the construction machinery (1) is initially shipped with the correction value stored in the main control unit (7 GMT +9 hours), the construction equipment (1) can be moved anywhere in the world, depending on the region Since the summer time is also applied, the local time correction value may be stored in the storage device 16 by a means for setting the local time correction value by operating a button 20 on the monitor 8 in consideration of the need to correct the time according to the local time. ), And if necessary, the local operating date and time are determined by adding or subtracting the correction value based on the absolute date and time from the radio communication terminal 9.

Fuel consumption of the operation information is the main interest information from the machine manager's point of view, and will be described with reference to the embodiment, as shown in FIG.

After inputting the keyon power to the main control unit 7, the absolute date and time TA are first read to determine the local operating date and time TC, and the elapsed time TL for fuel measurement is initialized.

The elapsed time TL is compared with the fuel measurement reference time TF to check the current fuel residual amount FC when TL> TF, and initialize the elapsed time TL.

Only when FC <FP compared to the previous fuel level (FP), the vehicle (FP-FC) is added to the daily accumulated fuel consumption (FT), and then the previous fuel level (FP) is replaced with the current fuel level (FC) value. Save your changes.

When FC> = FP, it is regarded as a fuel replenishment, and the fuel measurement reference time TF is related to the fuel consumption measurement error so that an appropriate value is selected.

When the key is off, the fuel consumption amount FT and the previous fuel residual amount FP stored in the operating day are stored in the storage device, and the daily fuel consumption accumulated up to this time when a predetermined data transmission condition occurs, such as when the date change is confirmed, Is finally memorized together with the operating date, and the information is sent to the remote web server 5.

In addition to the operation date and fuel consumption, important information (for example, fault codes, etc.) in terms of machine management is managed by the main control device 7 and stored in the storage device 16.                     

In addition, as another embodiment, useful construction equipment operation management information such as daily work amount, daily mileage, engine speed, and constant time acquisition data of the pump discharge pressure are added only through program modification of the main control device 7.

In addition, although omitted in the description of the present invention, it is clear that the repair-related history information, such as the failure log of the construction machine is also configured to be managed from the construction machine remote management system.

As described above, the construction machine remote management system according to the present invention in the system for remotely managing the machine based on the various operation information of the construction machine, the main control device having a means for managing the daily operation information, Communication cost can be used efficiently.

Claims (6)

Main control device that manages all the electric input and output related to the operation of the machine to the construction machine such as excavator or wheel loader, monitor to inform the driver of the machine operation status, the operator performs the operation input, and wireless communication for transmitting and receiving data with remote site An information acquisition / transmission unit provided with a terminal for transmitting operation information of the machine; Communication satellite which receives operation information data acquired / sent from ground construction machine and relays it to the ground again.Receives data from this communication satellite and reprocesses the data in the designated format of mail format to relay data to other places on the ground. An information transmission unit comprising a dedicated line or a public line installed so that data is transmitted from the communication satellite base station to the communication satellite base station; An information display / management unit comprising a web server that displays operation information of each construction machine on a computer monitor through data exchange with a communication satellite base station, and manages its operation history through a database; By configuring the system user to access the operation and history information of the construction machine from any computer through the Internet, The main control device is a construction machine remote management system, characterized in that by receiving a fuel sensor signal periodically and accumulates the difference between the front and rear fuel amount to calculate the fuel consumption for a daily or a predetermined period. According to claim 1, wherein the main control device is a signal processing unit for filtering signals from the various sensors installed in the construction machine and the signal input from the signal processing unit to read and manage the operation information while the main operation information is powered off Construction equipment remote management system, characterized in that the microprocessor is stored in a non-volatile memory storage device so as not to be lost. The monitor as claimed in claim 1, wherein the main control unit comprises a display window displaying a machine operating state or a selection menu and a button for performing menu selection and setting input and a communication interface unit 1 for data communication with the monitor. And a communication interface unit 2 for data communication with the wireless communication terminal. According to claim 1 or 3, wherein the wireless communication terminal construction system remote management system, characterized in that the GPS receiver is built in so as to determine the location information. The construction machine remote management system according to claim 1 or 3, further comprising means for setting a local time correction value by operating a button on the monitor. delete

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