KR20010091399A - Remote control apparatus based on web and method thereof - Google Patents

Abstract

PURPOSE: A web-based remote control method and an apparatus thereof are provided to call a manager in case of emergency by automatically connecting a call site, thereby effectively coping with the emergency. CONSTITUTION: A server manager(603) searches port checking result of a conveyor system(604) for determining whether a matter corresponding to emergency generating conditions exists. If an emergency is generated, the server manager(603) calls a call manager(607). The call manager(607) obtains stored information of a manager through a DB manager(605). The call manager(607) extracts necessary information and a call number(mobile communication telephone number) through personal data of the manager for editing a query fitting to the corresponding mobile communication character service. The call manager(607) sends the edited query to the corresponding mobile communication site through a CGI(Common Gateway Interface), so that the character message is transmitted to a mobile telephone of the manager.

Description

Web-based remote control method and apparatus {REMOTE CONTROL APPARATUS BASED ON WEB AND METHOD THEREOF}

The present invention relates to controlling a series of automated production processes, and more particularly, to a web-based remote control method and apparatus that can effectively handle an emergency situation through a networked client / server environment.

Nowadays, the production plant has automated all processes such as assembly, production, packing, etc., with the aim of reducing production costs and equalizing the quality. Representatively, for example, a passenger car production line, in which case the assembly, painting, quality inspection, packaging, shipping, etc. of parts are performed in one production line.

In addition, such a factory automation system monitors the process control status by placing an operator or a manager in a cab or a situation room, and in the event of a failure or an accident of a device in the field, contact the corresponding mechanic in the cab and enter the site.

However, if the manager is not in the field or the cab, it is impossible to check the process, and the manager will call or call the mechanic's pager directly. There was a problem that it was difficult to respond quickly.

The present invention has been made to solve the above-mentioned conventional problems, the object of which is to check the status of the field remotely via an applet in a networked client / server environment and automatically connects the call site in case of emergency It is to provide a web-based remote control method and apparatus that can be effectively handled in the event of an emergency by calling the person in charge.

1 is an overall configuration diagram of a system to which a web-based remote control method according to the present invention is applied.

Figure 2 is a block diagram schematically showing a conveyor control system of a passenger car production line as an embodiment of the process control system.

3 is a configuration diagram of ports used for information exchange between a conveyor system and a process control server.

4 is a block diagram of a client manager of a web-based remote control system according to the present invention.

5 is a configuration diagram of a server manager of a web-based remote control system according to the present invention.

6 is a block diagram of a web-based remote control device according to the present invention.

* Description of the symbols for the main parts of the drawings *

10: situation room 11: client terminal

12, 34: ATM switch 13, 33: video device

14, 35: storage 15: DB server

31: process control server 32: conveyor system

The above object is a constituent means for achieving the web-based remote control device according to the present invention

A client system that allows an administrator to connect to a server by running an applet program through a web browser, and controls a remote situation through an applet and controls the result;

A server system for analyzing an event from the client system and applying the same to a production line and periodically checking a situation of the production line;

And a database for storing the status of the production line and the information of the manager checked by the server system, wherein the client system and the server system are connected through a network.

In addition, the web-based remote control device according to the present invention

A) periodically checking the status of the production line in the server for process control, and determining whether there are any matters corresponding to an emergency occurrence condition;

B) calling an emergency call manager when an emergency occurs in step a);

C) the called call manager obtaining information of the stored manager through the DB manager;

D) editing a query to transmit a message informing of an emergency according to the corresponding mobile communication text service according to the personal information of the manager obtained in the step c);

E) sending the edited query to a corresponding mobile communication site through a common gateway interface (CGI);

F) repeating steps a) to e) if there is no connection to the server side by the called administrator within a predetermined time after the text message is transmitted.

Hereinafter, a web-based remote control method and apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram illustrating the overall configuration of a process control system to which a web-based remote control method according to the present invention is applied. In the situation room 10 for monitoring a process control situation in a field, a client terminal 11 and a situation room for multicasting are shown. (10) A video device (13) for recording the operating conditions in the storage, a storage device (14), and a DB server (15) for storing and managing various data including multimedia data, and for network management and web / mail server functions. The devices are connected to an ATM network 20 via an ATM switch 12.

In addition, the site 30 on which the conveyor system 32 is installed has a process control server 31 for controlling various machines, and an imaging apparatus 33 for recording the operation of the conveyor system 32. And a storage device 35, which are connected via an ATM network 20 via an ATM switch 34. In addition, the ATM network 20 manages call numbers for mobile workers (eg, mobile phones, PCS, pagers, etc.) of all workers, and transmits a message to a caller's call number in case of an emergency. The door transmission system 40 is connected.

The message transmission management system 40 is automatically connected through the common gateway interface (CGI) of the server 31, and transmits a text message to the mobile phone of the person in charge.

The administrator connects to the website through the client terminal 11 and executes the applet. At this time, the administrator receives an authentication procedure for determining whether to access. Such administrator information is used later in an emergency situation. In addition, the administrator may control the remote site, that is, the situation of the site 30 is received through the applet.

Process control server 31 of the site 30 analyzes the event received from the client terminal 11 to apply to the conveyor system, and sends a query to the DB server (15). In addition, the state of the conveyor system 32 is periodically checked, and when an emergency occurs, the message transmission service system 40 executes a text transmission service process through the call number of the person in charge.

Then, the DB server 15 stores the information of the administrator connected through the applet in the client terminal 11, processes the query in the situation room 10, or periodically checked by the process control server 31 Database the situation.

Figure 2 is a block diagram of a conveyor system of a passenger car production line, shown as an example of a conveyor system to which the web-based remote control method and apparatus of the present invention is applied. In the figure, reference numeral 201 denotes an input unit to which the output value of the conveyor is input, which allows the process control system to grasp the conveyor state of the current car production process, and reference numeral 202 denotes an output unit which operates the conveyor driver according to the control of the process control system. , 203 is a buzzer, 204 is a counter for counting the number of cars produced, 205 is a direction lamp indicating forward and reverse directions, 206 is a sensor installed on a conveyor, and each sensor is a process of a passenger car production line. 207 is a speed controller that allows the operator to directly control the speed of the conveyor in the field, if set manually, and 208 is a manual control of the conveyor to control the conveyor automatically by the process control system. Direct control button to decide whether

Such a conveyor system 32 is to exchange various information with the process control server 31 in the field, which is the conveyor system 32 using a microchip mounted on the process control server 31, 3e8H (A port ), 4e / O addresses of 3e9H (port B), 3eaH (port C) and 3ebH (minimum port) are used to exchange necessary information. Each of the ports is configured as shown in Figure 3, (A) is a configuration diagram of the A port used for transmitting a signal informing the current situation from the conveyor system 32 to the server 31, (B) This is a block diagram of B and C ports used to transmit a signal from the process control server 31 to the conveyor system 32. The server 31 transmits a signal of the server and a traveling speed value of the system of the conveyor. . (C) is a configuration diagram of the initialization port and is used to initialize the microchip mounted in the process control server 31.

4 is a configuration of the client manager to remotely control the conveyor system through the process control server 31 located at the site in the situation room or any other place other than the site in the above system, and monitor the site situation. As shown, the client side checks the occurrence of an event according to an action such as a mouse click of the process control manager (person), and informs the event manager 401 and the event manager 401 of the generated event. It is composed of a connection manager 402 and an applet manager 403 for managing the connection of the client-side manager and the server manager in accordance with the connection signal among the events generated by the event.

The function of the client manager configured as described above is checked by the event manager 401 when the event occurs due to an action (for example, a mouse click) of the process control manager (person) of the situation room, and the connection manager 402. ) Is transmitted to the process control server 31 side. Then, the processed result of the server 31 is transferred to the applet manager 403 through the connection manager 402, and is processed so that the process control manager can see.

As shown in FIG. 5, the server-side manager checks the connection manager 501 for connecting the client-side and the server-side, and checks the event transmitted from the client-side and executes an execution signal to the conveyor system (ie, a machine). An event manager 502 for generating a message, a result manager 503 for checking the situation of the conveyor system periodically or when an event occurs, and a DB manager 504 for receiving a query and searching a DB to report the result. And a call manager 505 which receives the call number and the manager's name according to the emergency by the result manager 503 and sends a call signal to the text call site of the wireless communication device.

The process control server 31 is equipped with a remote control driver of the conveyor system, and in fact, has a function for driving the conveyor system, which can be implemented by the native method of java (native method). The control of the conveyor system 32 by the server 31 is composed of a main thread and a sub thread.

The server's main thread checks for events that originate from the client side, which waits for signals from the client system and generates an event handler when an event signal comes in. When the server socket waits for a connection from the client system to a reserved socket port. When a connection is made, it creates an event manager to handle the signals.

Sub-thread of the server performs a function of periodically checking the status of the conveyor system, and stores the status of the previous conveyor system, checks the status of the current conveyor system step by step after a predetermined time delay, Check if it is an emergency, and if it is an emergency, first call the message manager to execute text service processing, and then compare the checked current conveyor system status with the previous stored conveyor system status, and if so, implement the appropriate event handler. Let's do it.

That is, the subthread periodically checks the change in the situation of the conveyor system, drives the event manager corresponding to the changed part, and applies it to the situation room manager and the conveyor system.

The processing at the time of emergency by the subthread of the process control server 31 will be described in more detail. The subthread of the server 31 periodically reads the A port value through which the signal from the conveyor system 32 is received. As shown in FIG. 3A, bit 7 of the value of the A port (LS2) ), Bit 6 (LS1), bit 5 (REV), bit 4 (FOR) and bit 2 (STOP) contain important information indicating an emergency situation. If the value of (LS2) and bit 6 (LS1) are set to 1, it means that the process state is not going to the next step, bit 5 (REV) means speed decrease, and bit 4 ( When FOR) is set to "1", the speed is increased, and bit 2 (STOP) indicates that the conveyor system is stopped.

Therefore, as the call condition of the emergency text message service, the conveyor system is stopped, the production speed drops or increases, the process status is delayed, or the speed limit set by the manager is violated by the speed comparison of the conveyor. And, if such a situation occurs by reading the value of the port A periodically, the call manager 403 is called, and transmits a text message notifying the emergency situation to the wireless communication device of the person in charge.

Figure 6 is a block diagram showing the overall configuration of a web-based remote control device according to the present invention, with reference to this will be described the processing method in the event of an emergency.

A) The server manager 603 searches the port check result of the conveyor system 604, and determines whether there is a matter corresponding to an emergency occurrence condition.

B) If an emergency occurs in the above, call manager 607 is called.

C) The called call manager 607 obtains the stored manager's information through the DB manager 605.

D) The call manager 607 extracts necessary information and call number (mobile phone number) from the administrator's personal information obtained from the DB, and edits the query for the corresponding mobile communication text service.

E) Then, the edited query is sent to the corresponding mobile communication site through the CGI (common gateway interface). As such, the transmitted text message is transmitted to the manager's mobile phone through the corresponding mobile communication base station.

F) If there is no connection to the server side by the called administrator within a certain time after sending the text message, repeat steps a) to e). By this, the called manager can adjust the conveyor system so that the trouble of the conveyor system can be solved quickly through the applet on the client side.

The present invention works as described above, and even if the manager does not monitor the site in the situation room, the situation can be delivered at the appropriate moment in the process control site, so that it is possible to cope with an emergency in a short time, thereby improving productivity. It is effective to let. In addition, the present invention is a text message transmission for an emergency is not connected to the homepage of each mobile operator artificially send a message directly, but is automatically connected to the text transmission system of the specified mobile communication provider through the CGI interface message Because of the transmission, there is an excellent effect that it is possible to deliver a message for an emergency more quickly.

Claims (5)

In the web-based remote control device for remote control of the automatic production line through the conveyor, A client system that allows an administrator to connect to a server by running an applet program through a web browser, and controls a remote situation through an applet and controls the result; A server system for analyzing an event from the client system and applying the same to a production line and periodically checking a situation of the production line; It is composed of a database that stores the status of the production line and the information of the manager checked by the server system; Web-based remote control device, characterized in that the client system and the server system is connected via a network. The system of claim 1, wherein the client system is An event manager for analyzing an event by an input of an administrator; A connection manager connected to a server system to transmit an event signal analyzed by the event manager to a server and to receive a result signal of a server side; And an applet manager for outputting a server-side result value received by the connection manager using an applet. The system of claim 1, wherein the server system is A connection manager for managing a connection of the client system to receive an event signal of the client system and to transmit a server side situation to the client system; An event manager configured to drive a production line by executing an event of a client system received through the connection manager; A result manager for periodically checking the status of the production line to obtain the manager's information through a DB manager to call the call manager, and to deliver the changed status of the production line to the client side through the connection manager; A DB manager for databaseting the situation of the production line obtained by the result manager and outputting the query result in response to the query of the result manager; And a call manager configured to automatically connect to a text transmission service of a corresponding mobile communication provider and transmit a text message through a CGI interface when a call is generated by the result manager. The method of claim 3, wherein the control of the server system A main thread waiting for a connection from the client system and generating an event manager to process a signal from the client system when a connection is established; Periodically checks the change of the conveyor system, drives the event manager corresponding to the changed part, and applies it to the client system and the production line.If it is determined that the situation is urgent, the call manager sends a text message. Web-based remote control device, characterized in that consisting of a sub-thread to be made. In the operating method of the web-based remote control device for connecting the process control server for controlling the automatic production line and the client terminal to the network, the administrator drives the applet to the client terminal to access the process control server to remotely control the production line, A) periodically checking the status of the production line in the server for process control, and determining whether there are any matters corresponding to an emergency occurrence condition; B) calling an emergency call manager when an emergency occurs in step a); C) the called call manager obtaining information of the stored manager through the DB manager; D) editing a query to transmit a message informing of an emergency according to the corresponding mobile communication text service according to the personal information of the manager obtained in the step c); E) sending the edited query to a corresponding mobile communication site through a common gateway interface (CGI); F) repeating steps a) to e) if there is no connection to the server side by the called administrator within a predetermined time after the text message is transmitted.