KR100813556B1 - Method for remotely diagnosing a construction equipment using a pda and system therefor - Google Patents

Abstract

The present invention wirelessly transmits diagnostic data for diagnosing failure and abnormality of construction equipment to a remote server by using a PDA (Personal Digital Assistant) with a wireless modem and analyzes the remote server to analyze the results of the diagnosis again. The present invention relates to a remote diagnosis method of a construction equipment using a PDA that can be transmitted to the system and a system therefor, and the present invention is provided in the construction equipment is connected to the PDA, and the various diagnostic data according to the operating state of the construction equipment An external connection unit provided from an ECU (Electronic Control Unit) provided in the output unit; A PDA connected to an external connection, receiving and transmitting diagnostic data wirelessly, and wirelessly receiving and displaying a diagnostic result corresponding to the diagnostic data; Pre-store the diagnostic tool (tool) for diagnosing the abnormality of construction equipment, receive the diagnostic data from the PDA and diagnose the abnormality of the construction equipment by using the diagnostic tool, and save the corresponding diagnosis result Provided is a remote diagnosis system for construction equipment using a PDA, including a diagnosis system for transmitting to a PDA. According to the present invention, by being able to remotely perform the equipment diagnosis according to the failure and abnormality of the construction equipment can not only improve the convenience of construction equipment diagnosis, but also improve productivity by minimizing downtime for equipment inspection. It can be effected.

Description

METHOOD FOR REMOTELY DIAGNOSING A CONSTRUCTION EQUIPMENT USING A PDA AND SYSTEM THEREFOR}

1 is a block diagram showing the configuration of an overall system suitable for performing a remote diagnosis method of construction equipment using a PDA according to a preferred embodiment of the present invention.

2 is a flowchart illustrating a remote diagnosis process of construction equipment using a PDA according to a preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: construction equipment 110: ECU

120: external connection 200: PDA

210: interface unit 220: operation unit

230: control unit 240: display unit

250: equipment information DB 260: wireless modem

300: wireless data exchange station 400: diagnostic system

410: diagnostic server 420: diagnostic tool storage unit

430: Diagnosis result DB 510, 520: PC

The present invention relates to a method for remote diagnosis of construction equipment and a system therefor, and more particularly, to remotely diagnose diagnostic data for diagnosing failure and abnormality of construction equipment by using a personal digital assistant (PDA) with a wireless modem. The present invention relates to a remote diagnosis method for a construction equipment using a PDA capable of wirelessly transmitting to a server and analyzing the same in a remote server and transmitting the diagnosis result back to the PDA, and a system therefor.

As is well known, PDAs are portable personal digital assistants with portable computer functions, electronic organizer functions, and the like, and provide various graphical user interface (GUI) environments to facilitate user manipulation. In recent years, wireless PDAs capable of transmitting / receiving faxes, communicating with PCs, and connecting to the Internet by incorporating wireless modems capable of transmitting and receiving data wirelessly to accommodate various user demands have been widely used.

On the other hand, construction equipment including excavators and the like has a close relationship with safety accidents at the construction site, so the equipment must be checked for failures and abnormalities from time to time. However, the failure and abnormality of such construction equipment can be diagnosed only in the place where the equipment diagnostic system is provided, which takes a lot of time, and there is a problem in that productivity is reduced due to the suspension of the equipment.

If the above-described wireless modem is embedded, the diagnostic data including the operation state of the construction equipment can be transmitted to the remote site, and the diagnostic data can be received from the remote site to diagnose the failure and abnormality of the equipment. If so, productivity will be improved by minimizing downtime for equipment checks.

Therefore, the present invention has been made in view of the above point, by connecting a PDA with a built-in wireless modem to the construction equipment to transmit the status information of the equipment to the remote site and to diagnose the failure and abnormality of the equipment accordingly according to the remote site The purpose of the present invention is to provide a remote diagnosis method for a construction equipment using a PDA and a system therefor.

According to an aspect of the present invention, there is provided a method of remotely diagnosing construction equipment that can be connected to a PDA having a wireless modem, comprising: a first step of connecting the construction equipment and the PDA; A second step of displaying diagnostic data according to an operating state of the construction equipment through the PDA and wirelessly transmitting the diagnostic data to a remote diagnosis system; A third step of diagnosing an abnormality in accordance with an operating state of the construction equipment through a diagnosis system receiving the wirelessly transmitted diagnostic data and storing a corresponding diagnosis result; A fourth step of wirelessly transmitting the stored diagnosis result to the PDA; Provided is a remote diagnosis method for construction equipment using a PDA comprising a fifth step of receiving and displaying the diagnostic result in the PDA.

The present invention according to another aspect for achieving the above object,

In the remote diagnosis system of construction equipment that can be connected to a PDA (Personal Digital Assistant) with a built-in wireless modem, providing a variety of diagnostic data according to the operating state of the construction equipment from the ECU (Electronic Control Unit) provided in the construction equipment An external connection portion provided in the construction equipment to receive and output; A PDA connected to the external connection unit, receiving and transmitting the diagnostic data wirelessly, and wirelessly receiving and displaying a diagnostic result corresponding to the diagnostic data; Pre-store a diagnostic tool (tool) for diagnosing the abnormality of the construction equipment, receiving the diagnostic data from the PDA to diagnose the abnormality of the construction equipment using the diagnostic tool, and the corresponding diagnosis Provided is a remote diagnosis system for construction equipment using a PDA including a diagnosis system for storing results and transmitting the same to the PDA.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the present invention described below with reference to the accompanying drawings.

1 is a block diagram showing the configuration of an overall system suitable for performing a remote diagnosis method of construction equipment using a PDA according to a preferred embodiment of the present invention, the ECU (Electronic Control Unit) 110, the external connection 120 ), The interface unit 210, the operation unit 220, the control unit 230, the display unit 240, the equipment information DB 250, the wireless modem 260, the wireless data exchange station 300, the diagnostic server 410, Diagnostic tool storage unit 420, diagnostic result DB 430 and subscriber station (510, 520, ...). Here, reference numerals 110 and 120 are constituent means provided in the construction equipment 100, reference numerals 210 to 260 are constituent means provided to the PDA 200, and reference numerals 410 to 430 are remote diagnosis systems 400. Means provided in the.                     

Referring to Fig. 1, each component is described in detail as follows.

First, the ECU 110 provided in the construction equipment 100 is a means for controlling the operation of the various electronic components and driving mechanisms (not shown) or monitoring the operating state of the equipment as in general equipment, and in particular, the total uptime of the equipment. Diagnostic data including section run time, fuel amount, engine speed, various oil pressures, various pump pressures and various valve states are detected in real time. In addition, the unique number of the equipment is stored in the ECU 110.

External connection unit 120 is a means provided separately to the construction equipment 100 to perform the remote diagnostic method of construction equipment according to the present invention, is connected to the PDA 200 to be described later in a wired manner to the ECU 110 described above And transmits the diagnostic data detected by the controller 110 to the PDA 200 under the control of the ECU 110. In other words, when diagnostic data of the equipment is requested from the PDA 200 in a state in which the construction equipment 100 and the PDA 200 are connected through the external connection 120, the ECU 110 in the construction equipment 100 is connected thereto. In response, the diagnostic data including the above-described information is transmitted to the PDA 200 through the external connection unit 120.

The interface unit 210 included in the PDA 200 is a means for connecting with the external connection unit 120 of the construction equipment 100 and transmitting and receiving data, and provides the received data to the controller 230.

The operation unit 220 includes a plurality of operation keys for controlling the overall operation and functions of the PDA 200, and generates an operation signal corresponding to the operation of the PDA 200 to the control unit 230.                     

Therefore, the control unit 230 controls the overall operation of the PDA 200 based on the above-described operation signal, and in particular, the diagnostic data of the construction equipment 100 received through the interface unit 210 described above, the equipment information DB ( 250, and again transmit this diagnostic data wirelessly via the wireless modem (260). In addition, the controller 230 may change the preset parameters or data to the ECU 110 of the construction equipment 100 based on a user's operation signal, and then transmit the changed parameters or data to the interface unit 210 and the external connection unit. By transmitting through 120, the parameters and data of the ECU 110 are updated.

The display unit 240 displays various functions provided by the PDA 200 on the screen under the control of the controller 230 as described above so that the user can select an appropriate function according to the operation state of the PDA 200 and The diagnosis result and the like according to the present invention are displayed so that the user can check it.

As described above, the equipment information DB 250 is a means for receiving and storing the diagnostic data of the construction equipment from the control unit 230, and storing the diagnostic data for each equipment based on the unique number of the equipment transmitted together with the diagnostic data. Save as.

In addition, the wireless modem 260 wirelessly transmits data provided from the controller 230, that is, diagnostic data according to an operating state of the construction equipment, or wirelessly receives a diagnostic result corresponding to the diagnostic data, and then again controls the controller 230. Perform the functions provided by.

Meanwhile, the wireless data exchange station 300 is connected to a diagnosis system 400 to be described later through a dedicated line or an internet network, and transmits data between the wireless modem 260 of the PDA 200 and the diagnosis system 400 to be described later. Relay. In this embodiment, the wireless data exchange station 300 is configured as a separate system independent of the diagnostic system 400 described later, but may be included in the diagnostic system 400 to be configured as one system.

The diagnostic server 410 in the diagnostic system 400 receives the diagnostic data transmitted from the PDA 200 through the wireless data exchange station 300 and is pre-stored in the diagnostic tool storage unit 420 described later. After checking whether there is an abnormality of the equipment by using the construction equipment diagnostic tool, the diagnostic result is transmitted to the PDA 200 through the wireless data exchange station 300 again. That is, the diagnostic tool storage unit 420 is a means for storing a diagnostic tool including various data and programs for determining whether the equipment is abnormal or not from the diagnostic data according to the state of the construction equipment 100.

In addition, the diagnosis result DB 430 stores the diagnosis result from the above-described diagnosis server 410 in the form of a database according to the unique number of the equipment. The diagnosis result stored in the diagnosis result DB 430 can be stored by the user through the Internet. You can read it.

In other words, since the diagnostic server 410 is connected to the Internet network as shown in the figure, the user connects to the diagnostic server 410 using a PC 510, 520, ..., and then logs in a predetermined log. Through the process, you can view detailed diagnosis result and past diagnosis history about your equipment.

2 is a flowchart illustrating a remote diagnosis process of construction equipment using a PDA according to a preferred embodiment of the present invention. Hereinafter, a series of processes will be described in detail with reference to the accompanying drawings.                     

First, as shown in FIG. 1, in a state in which the external connection portion 120 of the construction equipment 100 and the interface portion 210 of the PDA 200 are connected by wires and connected to each other (step S201), the user has a PDA ( When an operation signal for diagnosing a state of construction equipment is input by operating the operation unit 220 of step 200 (step S203), the control unit 230 generates a diagnostic data request signal in response to the interface unit 210. It transmits to the ECU 110 via the external connection portion 120 of the construction equipment 100 (step S205).

Therefore, the ECU 110 diagnoses various data corresponding to the current state of the equipment, that is, information on the total operating time, section operating time, fuel amount, engine speed, various oil pressures, various pump pressures, various valve states, and the like. The data is transmitted to the PDA 200 together with the unique number of the equipment previously stored in the ECU 110, and the controller 230 of the PDA 200 transmits the diagnostic data and the unique number of the equipment to the interface unit 210. After receiving through, it is stored in the database form in the equipment information DB (250) (step S207).

Then, the controller 230 displays the received diagnostic data on the display unit 240 so that the user can check it (step S209). Here, the user can change and modify the parameters of the ECU 110 or specific diagnostic data (for example, segment uptime, etc.) with reference to the displayed diagnostic data. ) And modify or change the parameters or specific data of the ECU 110 (step S211), the controller 230 converts the modified or changed parameters or data to the interface unit 210 and the external connection unit 120 of the construction equipment. The controller 110 transmits the data to the ECU 110 through the ECU 110, and in response, the ECU 110 updates the corresponding parameter or data (step S213).

On the other hand, in contrast to the diagnostic data of the construction equipment 100 is displayed through the display unit 240 of the PDA 200 through the above-described step (S209), the user operates the operation unit 220, the diagnostic data If transmission is selected (step S215), the controller 230 drives the wireless modem 260 to access the diagnostic system 400 through the wireless data exchange station 300 (step S217), and then the above-mentioned diagnostic data is stored. The diagnostic server 400 transmits to the diagnostic server 410 (step S219).

Accordingly, the diagnostic server 410 in the diagnostic system 400 receives the diagnostic data and the unique number of the equipment through the wireless data exchange station 300 (step S221), and then stores the diagnosis previously stored in the diagnostic tool storage unit 420. By using the tool, it is diagnosed whether or not the failure of the construction equipment and abnormality (step S223). That is, by using the diagnostic tool to check the normal state according to the engine rotation speed, various oil pressures, various pump pressures and various valve conditions of the equipment, it is possible to diagnose the failure and abnormality of the equipment accordingly.

When the diagnosis of the construction equipment is completed through each of these processes, the diagnosis server 410 stores the diagnosis result in a database form in the diagnosis result DB 430, and then the PDA 200 through the wireless data exchange station 300. (Step S225). Here, the diagnostic server 410 may transmit the entire diagnosis result for the construction equipment 100 to the PDA 200, but considering the data size of the diagnosis result and the memory capacity that the PDA 200 can receive. Only some of the diagnostic results that are important may be transmitted.

On the other hand, the wireless modem 260 in the PDA 200 receives the diagnostic result transmitted through the above-described step (S225) from the wireless data exchange station 300 to provide to the control unit 230, the control unit 230 By displaying the diagnosis result on the screen through the display unit 240 (step S227), the user can check the diagnosis result of the equipment.

As a result, after each of these processes, the diagnostic data according to the current state of the construction equipment is transmitted to the diagnostic system 400 located at a remote location, and then the diagnostic result is received from the diagnostic system 400 to check whether there is a problem with the equipment and The fault can be checked at the work site.

In addition, the diagnosis system 400 provides the user with the diagnosis result stored in the above-described step S225 through the Internet, so that the user may re-check the diagnosis result as well as the past diagnosis history at any time.

As described above, according to the present invention, it is possible to perform the equipment diagnosis according to the failure and abnormality of the construction equipment from a remote location, thereby improving the convenience of diagnosing the construction equipment and minimizing the downtime for the equipment inspection. There is an effect that can improve the productivity.

Claims (7)

In the method of remotely diagnosing construction equipment that can be connected to a PDA (Personal Digital Assistant) with a wireless modem, A first step of connecting the construction equipment and the PDA; A second step of displaying diagnostic data according to an operating state of the construction equipment through the PDA and wirelessly transmitting the diagnostic data to a remote diagnosis system; A third step of diagnosing an abnormality in accordance with an operating state of the construction equipment through a diagnosis system receiving the wirelessly transmitted diagnostic data and storing a corresponding diagnosis result; A fourth step of wirelessly transmitting the stored diagnosis result to the PDA; And a fifth step of receiving and displaying a diagnosis result from the PDA. The method of claim 1, The second step, When the user changes and inputs any parameter or data for the diagnostic data through the PDA, transmitting the changed parameter or data to the construction equipment to update the parameter or data of the construction equipment using the PDA Remote diagnostic method. The method according to claim 1 or 2, The diagnostic data is data including information on the total operating time of the equipment, fuel amount, engine rotation speed, various oil pressures, various pump pressures, various valve conditions, and the like. In the remote diagnosis system of construction equipment that can be connected to the PDA (Personal Digital Assistant) with a wireless modem, An external connection unit provided in the construction equipment to receive and output various diagnostic data according to an operating state of the construction equipment from an electronic control unit (ECU) provided in the construction equipment; A PDA which is connected to the external connection unit, receives and transmits the diagnostic data wirelessly, and wirelessly receives and displays a diagnostic result corresponding to the diagnostic data; Pre-store a diagnostic tool (tool) for diagnosing the abnormality of the construction equipment, and receives diagnostic data from the PDA to diagnose the abnormality of the construction equipment using the diagnostic tool, and the corresponding diagnostic result Remote diagnosis system for construction equipment using a PDA comprising a diagnostic system for storing and transmitting to the PDA at the same time. The method of claim 4, wherein If the PDA is required to modify or change any parameters or data of the ECU, construction using the PDA, characterized in that for transmitting the modified or changed parameters or data to the construction equipment to update the parameters or data of the ECU Remote diagnostic system of the equipment. The method of claim 4, wherein The diagnostic system, A remote diagnosis system for construction equipment using a PDA, which is connected to the Internet and provides stored diagnosis results through the Internet. The method according to any one of claims 4 to 6, The diagnostic data is data including information on the total operating time of the equipment, fuel amount, engine speed, various oil pressures, various pump pressures and the state of the various valves, and the like.

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