JP4690975B2 - Remote monitoring control system and remote monitoring control method - Google Patents

Description

  The present invention provides a remote monitoring and control system in which a subsystem that monitors equipment abnormalities of equipment to be monitored and controlled locally and a subsystem that remotely monitors data from the local subsystem are connected via a network. It relates to that method.

  In buildings such as buildings and factories, remote monitoring and control systems for monitoring and controlling generators, power receiving / transforming facilities, air conditioning facilities, and the like from a remote location are often employed. In such a remote monitoring and control system, in order to operate a generator and air conditioning equipment (hereinafter simply referred to as equipment), an image of the equipment and an alarm sound are generated using a supervisory control computer installed at the site. The operator is notified in an easy-to-understand manner. Generally, facility operation is performed using a supervisory control computer (hereinafter referred to as a local computer) in a team formed by a plurality of operators.

  Recently, in order to improve operation work efficiency, it has been required to operate more facilities with fewer operators. In order to meet this demand, a method of introducing a new large-scale monitoring control computer for centralized monitoring control can be considered. However, with this method, in addition to the large costs required for the development and introduction of new monitoring and control computer systems, existing local computers are also wasted, and the disposal costs are also required. As a result, in many cases, it is not possible to obtain an effect corresponding to the investment cost.

  For this reason, there is generally a method of establishing a specific central supervisory control system, connecting multiple local computers via a network, and performing remote centralized supervisory control from the central supervisory control system while making effective use of existing local computers. Taken. However, even in this method, in order to connect the central supervisory control system and the existing local computer, it is often necessary to modify the function of the existing local computer, so that an effect commensurate with the investment cost cannot often be obtained.

  On the other hand, the operator of the central supervisory control system operates the keyboard and mouse on the existing local computer connected to the computer via the network by operating the keyboard and mouse of the central supervisory control computer. A method has been proposed in which the same remote operation as in the above case is realized and the screen displayed on the local monitor is displayed on the monitor of the central monitoring control system (see Patent Document 1). This method has the advantage that a remote monitoring and control system can be constructed at low cost because it does not require functional modification of the existing local computer.

  FIG. 27 is monitored and controlled by such a conventional remote monitoring control system, that is, a local monitoring control subsystem S1 using an existing monitoring control computer (hereinafter referred to as a local monitoring control computer) installed in the field. It is a block diagram which shows an example of the distant monitoring control system for carrying out distant monitoring control of the installation which is central monitoring control subsystem S2.

  In FIG. 27, the state of the monitoring control target equipment 100 is always taken into the local monitoring control computer 101 of the local monitoring control subsystem S1, and the equipment monitoring control program 102 passes the signal distributor 103 to the monitor device 104. A screen showing the equipment status is displayed.

  Further, when the on-site monitoring control computer 101 detects an abnormality in the monitoring control target equipment 100, the alarm sounding device 105 is sounded to notify the operator. In this case, in general, the sound is changed with the timbre depending on the importance of the equipment abnormality such as a serious failure or a minor failure.

  If the keyboard 106 or mouse 107 is operated, the operation result of the apparatus is notified to the equipment monitoring control program 102 of the on-site monitoring control computer 101, and a screen corresponding to the keyboard or mouse operation, which is a function unique to the equipment monitoring control program. Monitoring and control of equipment by updating and screen operations are performed.

  On the other hand, the image signal of the screen output from the equipment monitoring control program 102 and displayed on the monitor device 104 is collected by the image signal collecting device 108 via the signal distributor 103, and is transmitted from the image data editing / transmitting device 109 to the network 120. To the central supervisory control subsystem side.

  The screen displayed on the monitor device 104 of the on-site monitoring and control subsystem S1 is generally updated and displayed at a period of about 60 to 75 screens / second (referred to as a refresh cycle) and is synchronized with the image signal collecting device 108. Data collection is performed. The image data editing / transmitting device 109 transmits only the changed screen portion to the central monitoring control subsystem S2 in order to reduce the amount of data to be transmitted.

  The image data reception / collection program 132 of the central supervisory control computer 131 of the central supervisory control subsystem S2 receives the image data from the local supervisory control subsystem S1, and the received image data is converted into the image data received so far. The image data is edited as one-screen image data by superimposing the newly received partial image data, and is displayed on the monitor device 134 by the image data display program 133.

  In order to start transmission of image data from the image data editing / transmitting device 109 of the local monitoring control subsystem S1 to the central monitoring control computer 131 of the central monitoring control subsystem S2 via the network 120, In advance, it is necessary to follow a so-called login procedure, which is a procedure for connecting the image data editing / transmission apparatus 110.

  This login procedure is generally performed by an operator of the central monitoring control subsystem S2 operating the keyboard 136 and the mouse 137 by the image data editing / transmitting device connection program 135, and interacting with a screen displayed on the monitor device 134. Meanwhile, predetermined data unique to the image data editing / transmission apparatus 109 of the local monitoring control subsystem S1 is input.

  If the keyboard 136 or mouse 137 of the central supervisory control subsystem S2 is operated, the operation result is transmitted from the keyboard (KB) / mouse data transmitting device 139 connected via the local / central switching device 138, and the network The data is transmitted to the keyboard (KB) / mouse data receiving device 110 of the on-site monitoring control subsystem S 1 via 120, and notified to the equipment monitoring control program 102 of the on-site monitoring control computer 101 via the signal synthesizer 111.

  Thus, in this system, the keyboard 136 and mouse 137 of the central supervisory control subsystem S2 are the local supervisory control computer 101 of the local supervisory control subsystem S1 and the central supervisory control computer 131 of the central supervisory control subsystem S2. Share with. For this reason, a local / center side switching device 138 is provided, and is switched alternately by pressing the button 140.

  In this way, by operating the keyboard 136 or mouse 137 of the central supervisory control subsystem S2, the display screen of the local supervisory control computer 101 of the local supervisory control subsystem S1 can be manipulated. The remote monitoring control operation using the local monitoring control computer 101 is performed.

JP2004-302990

  However, the conventional remote monitoring and control system in which the local monitoring and control subsystem using the existing local computer as described above and the remote central monitoring and control subsystem are connected via a network has the following problems. ing.

[First issue]
Operators of the central supervisory control subsystem, whose primary task is equipment supervisory control, are to keep track of all the status of equipment to be monitored and controlled by multiple local computers at all times so that necessary measures can be taken at any time. It is required to keep. For this reason, the operator is required to promptly grasp the occurrence of abnormality in a large number of facilities, and it is desired to provide an effective tool for this purpose.

  For example, when an abnormality occurs in one piece of equipment, the operator generally uses a computer to display a corresponding screen to check the equipment abnormality status and perform a recovery operation. In this case, when the occurrence of an abnormality in a plurality of facilities is congested, the general situation of all the abnormality of the equipment is quickly grasped, and then the detailed situation and the equipment restoration are advanced in descending order of importance.

  On the other hand, in the monitoring control method in Patent Document 1, the system configuration is simplified, but while the operation for equipment monitoring control is being executed by the computer of the central monitoring control subsystem through the screen of one local computer, A screen showing the equipment status of another equipment monitored and controlled by the computer cannot be displayed on the monitor of the central supervisory control subsystem. In this case, the information indicating the equipment abnormality that occurs in the other equipment does not reach the operator of the central supervisory control subsystem. It may be difficult to grasp without omission.

  In addition, by sounding an alarm when an equipment abnormality is detected by a local computer, the equipment abnormality can be quickly grasped by the local supervisory control subsystem, but an alarm indicating an equipment abnormality should be sounded by the central supervisory control subsystem side. Therefore, the operator of the central supervisory control subsystem cannot quickly grasp the equipment abnormality.

  Furthermore, if the number of facilities to be monitored and controlled increases and the number of on-site monitoring and control subsystems increases, the number of image data received on the central monitoring and control subsystem side also increases, increasing the network load. End up. Such an increase in network load makes it difficult to ensure sound responsiveness in a small-capacity network.

  Therefore, one object of the present invention is to easily and quickly grasp the facility abnormality and the degree of all of the facility abnormality even if the facility abnormality occurs simultaneously in a plurality of facilities to be monitored and controlled. It is possible to provide a high-performance and low-cost remote monitoring and control system and method capable of reducing the network load.

[Second problem]
In order to quickly transmit the image data of the screen displayed on the monitor device by the local supervisory control computer of the local supervisory control subsystem to the central supervisory control computer of the central supervisory control subsystem, generally the image data Due to the large amount of information, a large capacity network is required. In addition, it is desirable that the network responsible for monitoring and controlling important facilities is a so-called bandwidth guarantee type in which transmission performance exceeding a certain capacity is always secured in terms of quality.

  On the other hand, a pay public network with a large capacity and a bandwidth guarantee function is generally expensive and has high operating costs. Therefore, it is necessary to reduce the amount of data to be transmitted in order to ensure a prompt screen display function in the central supervisory control computer even in an environment with a small transmission capacity.

  Image data is detected only on the part that has been changed on the local supervisory control computer side, the partial image data is transmitted, and the image data already received and stored on the central supervisory control computer side is overwritten and synthesized on the monitor. Display is done. This is the same kind of technology adopted in the MPEG4 standard.

  As a feature of the equipment monitoring screen displayed on the monitor device of the on-site supervisory control computer, when an equipment abnormality occurs, a screen display is often performed to alert the operator by flickering the symbol portion indicating the equipment. In particular, when an abnormality occurs in a wide range of equipment, the number of symbols flickering on the equipment monitoring screen may increase. In this case, since a large number of image partial changes occur frequently and frequently, traffic for image data transmission also increases. When the network capacity is small, all necessary image data cannot be transmitted. It can happen.

  In addition, the equipment monitoring screen displayed on the monitor of the on-site monitoring and control computer has a minute change part that immediately returns after occurrence on the screen due to noise of the screen display signal, noise of the image data collection device, etc. Appears frequently. Even if the change is invisible to the operator's eyes, when the image data collection device detects a change in the screen, the image data is immediately transmitted. Since partial image changes frequently occur, it also causes an increase in network load due to unnecessary image data transmission.

  Here, in the case of a signal whose noise signal level is sufficiently smaller than the image signal level of the monitor control screen, so-called S / N ratio is small, it is constituted by a reactance circuit before being collected by the image data collecting device. Noise can be removed using a noise signal removing filter device. However, since a signal having a large S / N ratio is collected by the image data collection device and mixed in the image data on the monitoring control screen, the amount of transmission data is increased wastefully.

  Therefore, another object of the present invention is to avoid an increase in the amount of image data transmitted due to various factors such as flicker and noise when an equipment abnormality occurs in the equipment to be monitored and controlled. A high-performance and low-cost remote monitoring control system and method capable of ensuring sufficient image display performance.

[Third issue]
If an abnormality occurs in the equipment to be monitored and controlled, a screen showing the equipment status on the monitor of the central supervisory control computer of the central supervisory control subsystem via the existing supervisory control computer of the local supervisory control subsystem Is displayed, the operator of the central supervisory control subsystem determines the state and cause of the equipment failure by looking at the display content of the screen.

  However, in the case of damage or burnout of the target equipment, it is desirable to grasp it together with appearance observation in order to enable quick and accurate situation determination. In addition, intrusion of people into an unmanned building may cause harm to people or cause equipment failure. In order to prevent such accidents, installation of equipment using monitor cameras It may be necessary to observe the appearance of the environment.

  Therefore, another object of the present invention is to provide a high-performance, low-cost system that can centrally manage images displayed by existing computers and on-site monitor camera images, and can be easily selected and displayed by the operator of the central monitoring control subsystem. Is to provide a remote monitoring control system and method thereof.

[Fourth issue]
In the above-mentioned conventional remote monitoring control system, if the keyboard or mouse of the central monitoring control computer of the central monitoring control subsystem is operated, the signal synthesizer of the keyboard / mouse data of the local monitoring control subsystem is used as it is. The computer for on-site monitoring control will be notified. In this conventional system, even if the keyboard or mouse of the local supervisory control computer is operated, the local supervisory control computer is similarly notified. As a result, the keyboard and mouse of the central supervisory control subsystem compete with the keyboard and mouse of the local supervisory control computer.

  Therefore, another object of the present invention is to provide a high-performance and low-cost, which can prevent the operation conflict between the central side and the local side when the local supervisory control subsystem is operated from the central supervisory control subsystem. It is to provide a remote monitoring control system and method.

[Fifth issue]
The cursor displayed on the monitor device of the local supervisory control computer moves on the screen in accordance with the mouse operation on the central supervisory control computer side. For this reason, in general, the image change of the cursor is detected on the local supervisory control computer side and transmitted as partial change image data, and the central supervisory control computer side overwrites the already received and saved image data. It is synthesized and displayed on the monitor device.

  In this case, in general, the cursor frequently moves on the screen, so the image change of the cursor is sequentially detected in a time-sharing manner, and image data representing the partial change of the image is transmitted. The amount of transmission is extremely large. Further, as the cursor image, generally, a plurality of types of cursor symbols having different specific shapes such as an arrow shape, a hand shape, and a cross shape are used, and are often switched to different shape types on the screen.

  Therefore, if the network capacity is small, it takes a lot of time to complete the transmission of the image data for all necessary cursor movements and cursor symbol changes. Display on the monitor device on the side becomes difficult, and the operation for performing the monitoring control work is often hindered.

  In many cases, the monitor device of the on-site monitoring control computer includes a partial image having a specific shape called pop-up or pull-down. The screen image data displayed on the monitor device of the local supervisory control computer detects only the changed part on the local supervisory control computer side, transmits the partial image data, and has already received it on the central supervisory control computer side. The image data that has already been stored is overwritten and displayed on the monitor device.

  In this case, although it is a partial image, since it generally includes a considerable amount of image information, the amount of information transmission that becomes a network load for transmitting image data representing a partial change of the image becomes extremely large. In addition, switching between displaying and hiding pop-ups and pull-downs may be frequently performed.

  For this reason, when the network capacity is small, it takes a long time to complete the transmission of the image data of all necessary partial images. Therefore, the partial images are displayed on the monitor device on the central supervisory control computer side in a timely manner. Display on the screen becomes difficult, and the operation for performing the monitoring control work is often hindered.

  Therefore, another object of the present invention is that data relating to movement or display change of a specific image such as a cursor, pop-up, and pull-down is necessary for screen operation in the monitoring control work on the central monitoring control subsystem side even in a small-capacity network. It is an object to provide a high-performance, low-cost remote monitoring and control system and method that can be transmitted at a speed and displayed on a monitor device, and that is excellent in display response and operability of a specific image.

[Sixth issue]
In the supervisory control system shown in Patent Document 1, the cursor movement change amount by the mouse of the central supervisory control computer of the central supervisory control subsystem is used to change the amount of cursor movement change in the horizontal and vertical directions for each fine sample time. The local monitoring control computer is notified via the signal synthesizer, and the cursor movement state is sequentially displayed on the monitor device of the local monitoring control computer. This result is converted into image data and sent to the central monitoring and control subsystem. The status of cursor movement is also displayed on the monitoring device of the central monitoring and control computer of the central monitoring and control subsystem, and the operator who operates the mouse. Will be notified.

  On the other hand, in a public network that mediates information, since information is generally relayed through many relay devices, transmission delay often occurs.

  When transmission delay occurs in this way, an image showing the cursor movement status of the on-site supervisory control computer is displayed on the monitor of the central supervisory control subsystem by the cursor movement operation of the central supervisory control subsystem operator with the mouse. It takes a lot of time to be displayed on the device. In such a case, even if the operator of the central supervisory control subsystem tries to move the cursor to the target position on the screen of the monitor device, it may become difficult to perform a smooth cursor movement operation. .

  Accordingly, another object of the present invention is that the operator of the central supervisory control subsystem can perform the operation for moving the cursor on the local supervisory control computer screen without a sense of incompatibility even when a network with transmission delay is used. Another object of the present invention is to provide a high-performance, low-cost remote monitoring control system and method excellent in display responsiveness and operability of the cursor movement of the local monitoring control computer screen in the central monitoring control subsystem.

The remote monitoring control system according to the first aspect of the present invention corresponds to claim 1 and claim 2 , but in order to solve the first problem, an alarm from the local monitoring control subsystem is provided. The alarm type data indicating the type of the alarm is transmitted to the central supervisory control subsystem, the alarm of the type is sounded, and the alarm occurrence and the image data indicating the type are displayed, so that a plurality of facilities to be monitored and controlled simultaneously. It is intended to make it easy and quick for operators of the central supervisory control subsystem to know all the equipment anomalies and their levels that have occurred.

  That is, the remote monitoring and control system according to the first aspect of the present invention basically connects the two types of subsystems, the on-site monitoring control subsystem and the central monitoring control subsystem, via the network. This is a remote monitoring control system that performs monitoring control of target equipment. Here, the on-site monitoring control subsystem captures the equipment state of the equipment to be monitored and outputs a signal indicating the equipment state and the occurrence of an abnormality, and the on-site monitoring control processing section outputs the signal. As the parts that operate based on the signal, the site monitoring control monitor unit that displays the image data indicating the equipment state and the occurrence of abnormality, the alarm sounding part that sounds the alarm, and the transmission for the equipment state and the occurrence of abnormality A data transmission unit that generates data and transmits the data via the network is provided. The central supervisory control subsystem receives a central supervisory control processing unit that receives and processes data from the local supervisory control subsystem transmitted via the network, and an image showing a processing result of the central supervisory control processor. A central monitoring control monitor unit for displaying data is provided.

  The remote monitoring control system according to the first aspect of the present invention has the following technical features in the remote monitoring control system having the basic configuration as described above. First, the on-site monitoring control processing unit is configured to output an alarm ringing signal of a type corresponding to the importance of equipment abnormality to the alarm ringing unit. The data transmission unit collects the alarm ringing signal output from the on-site monitoring control processing unit and determines the type thereof, generates the alarm type data indicating the occurrence of the alarm and the type of the alarm via the network It has an alarm type determination / data transmission unit for transmission. On the other hand, the central supervisory control subsystem has an alarm sounding unit for sounding an alarm. Further, the central monitoring control processing unit receives the alarm type data from the local monitoring control subsystem transmitted via the network, and outputs the alarm of the type indicated in the alarm type data to the alarm ringing of the own subsystem. And an alarm type data sounding / display control unit for causing the central monitoring control monitor unit to display image data indicating the occurrence of the alarm and its type.

  The remote monitoring control method according to the present invention is obtained by grasping the remote monitoring control system according to each aspect as described above from the viewpoint of the method.

According to the first aspect of the present invention, even when equipment abnormalities occur simultaneously in a plurality of equipment to be monitored and controlled, the operator of the central supervisory control subsystem can easily and quickly detect all of the equipment abnormalities and their extents. It is possible to provide a high-performance, low-cost remote monitoring control system and method that can be grasped and that can reduce the network load. Furthermore, according to the first and subsequent reference examples of the present invention, the above-described problems can be solved.

  Hereinafter, a plurality of embodiments of a remote monitoring control system according to the present invention will be specifically described with reference to the drawings. The same parts as those in the conventional remote monitoring control system shown in FIG.

[First Embodiment]
[Constitution]
1st Embodiment concerns on Claim 1 and Claim 2 , FIG. 1: is a block diagram which shows the structure of the remote monitoring control system which concerns on 1st Embodiment. As shown in FIG. 1, the remote monitoring control system according to the present embodiment includes an alarm type determination / data transmission device in the configuration of the local monitoring control subsystem S1 in the configuration of the conventional remote monitoring control system shown in FIG. 201, and an alarm type data collection program 202, an alarm type data editing program 203, an alarm ringing program 204, and an alarm ringing device 205 are added to the configuration of the central monitoring control subsystem S2.

  Here, the alarm type determination / data transmission apparatus 201 is inserted between the local monitoring control computer 101 and the alarm ringing apparatus 105 in the local monitoring control subsystem S1. The alarm type data collection program 202, the alarm type data editing program 203, and the alarm sounding program 204 are incorporated in the central monitoring control computer 131 of the central monitoring control subsystem S2.

[Action]
In the first embodiment having the configuration as described above, the basic operation is the same as that of the conventional system shown in FIG. 27. It has such an action.

  First, in the on-site monitoring control subsystem S1, the alarm sound signal ringed by the on-site monitoring control computer 101 is collected by the alarm type determination / data transmission apparatus 201, and the timbre is determined. That is, the type of the alarm sound signal corresponding to the importance of the equipment abnormality is determined, and alarm type data indicating the occurrence of the alarm and the type is generated. The generated alarm type data is transmitted via the network 120 and received by the alarm type data collection program 202 of the central supervisory control computer 131 of the central supervisory control subsystem S2.

  The alarm type data received by the alarm type data collection program 202 is further notified to the alarm ringing program 204 and converted into a signal corresponding to the alarm type. By notifying this signal to the alarm sounding device 205, the central monitoring control subsystem S2 can sound an alarm sound corresponding to the alarm type generated in the on-site monitoring control computer 101.

  The alarm type data received by the alarm type data collection program 202 is simultaneously notified to the alarm type data editing program 203, and image data for displaying an alarm occurrence and its type with a specific symbol is displayed on the monitor device 134. Generated. The image data indicating the alarm occurrence and its type is notified to the image data display program 133, and the specific symbol is displayed on the monitor device 134 by the image data display program 133.

[Hardware configuration example]
FIG. 2 is a block diagram showing an example of a specific hardware configuration of the remote monitoring control system of the present embodiment as described above. As shown in FIG. 2, the on-site monitoring control subsystem S1 is divided into a simplified on-site monitoring control subsystem S11 and a high-function on-site monitoring control subsystem S12 according to the function of the terminal used. Yes.

  Here, the simple on-site monitoring control subsystem S11 has a building energy management device (BEMS) 211 having XGA resolution, a monitor device 212, a speaker 213, a keyboard 214, a mouse 215, and the like as existing devices. . Here, the BEMS 211 corresponds to the on-site monitoring control computer 101 of FIG. The monitor device 212, the speaker 23, the keyboard 214, and the mouse 215 correspond to the monitor device 104, the alarm ringing device 105, the keyboard 106, and the mouse 107 in FIG.

  In addition to the above configuration, the simplified local monitoring and control subsystem S11 includes a multicast router 216, a router / hub 217, a signal converter / distributor 218, a signal converter / distributor 219, and an alarm type detection device connected to the network 120. 220, an alarm transmission device 221 and the like.

  Here, the multicast router 216 and the router hub 217 are parts that perform data transmission between the network 120 and the on-site monitoring control subsystem S11. For example, the image signal collection device 108 and the image data editing / transmission device in FIG. 109, a keyboard (KB) / mouse data receiving device 110 and the like, and an arrow portion connecting between the on-site monitoring control subsystem S1 and the network 120. The signal converter / distributor 218 connects the BEMS 211 and the monitor device 212, and corresponds to the signal distributor 103 in FIG. On the other hand, the signal converter / distributor 219 corresponds to the signal synthesizer 111 in FIG.

  Further, the alarm type detection device 220 is a device that determines the type of the alarm sound signal according to the importance of the equipment abnormality, and generates alarm type data indicating the occurrence of the alarm and the type thereof. The alarm transmission device 221 This is a device that transmits the generated alarm type data via the network 120. The combination of the alarm type detection device 220 and the alarm transmission device 221 corresponds to the alarm type determination / data transmission device 201 shown in FIG.

  Further, in the high-function type on-site monitoring control subsystem S12, in addition to the BEMS 211 having the XGA resolution in the simple type on-site monitoring control subsystem S11, a higher-function personal computer 222 is added, and the BEMS 211 and the monitoring device are added. As a distributor connecting 212, a VGA distributor 223 is provided instead of the signal converter / distributor 218. In this case, the combination of the BEMS 211 and the personal computer 222 corresponds to the on-site monitoring control computer 101 of FIG.

  On the other hand, the central supervisory control subsystem S2 includes a personal computer 231, a monitor device 232, a speaker 233, a keyboard 234, a mouse 235, and the like. Here, the personal computer 231 corresponds to the central supervisory control computer 131 of FIG. Further, the monitor device 232, the speaker 233, the keyboard 234, and the mouse 235 correspond to the monitor device 134, the alarm ringing device 205, the keyboard 136, and the mouse 137 of FIG.

  In addition to the above configuration, the central supervisory control subsystem S2 includes a multicast router 236, a router 237, a hub 238, a signal converter / distributor 239, etc. connected to the network 120. Here, the multicast router 236, the router 237, and the hub 238 are parts that perform data transmission between the network 120 and the local monitoring control subsystem S11. For example, the keyboard (KB) / mouse data transmission device 139 in FIG. And the arrow portion connecting the central supervisory control subsystem S2 and the network 120. The signal converter / distributor 239 corresponds to the local / center side switching device 138 of FIG.

[Configuration example of alarm type detection device]
FIG. 3 is a block diagram illustrating a specific configuration example of the alarm type detection device 220 illustrated in FIG. 2. The alarm type detection device 220 shown in FIG. 3 includes a first frequency detector 2201 that detects high sounds, a second frequency detector 2202 that detects low sounds, an alarm type determination circuit 2203, a contact output circuit 2204, and a plurality of contacts. 2205 and the like. The operation of the alarm type detection device 220 is as follows.

  The speaker ringing signal 2206 is input in parallel to the first frequency detector 2201 that detects high sounds and the second frequency detector 2202 that detects low sounds, and the presence or absence of a frequency component to be detected is detected. The detection result is notified to the alarm type determination circuit 2203. For example, a case where a high tone and a low tone signal are alternately generated, a case where a high tone is continuously generated, a case where a high tone is intermittently generated, and a low tone are continuously generated Cases, cases in which bass sounds are generated intermittently, and the like are determined, and the corresponding contact 2205 is closed by the contact output circuit 2204. Such a contact state is transmitted as alarm type data.

  That is, in general, the type of alarm sounded by the on-site monitoring control subsystem is often composed of a combination of high and low sounds so that the operator can easily discriminate. On the other hand, the level of the sound of the sound is determined by the frequency of the AC analog voltage transmitted to the speaker. Therefore, generally, as shown in FIG. 3, it is possible to determine the alarm type from the frequency detector and its combinational circuit.

[effect]
As described above, in the first embodiment, the alarm ringing signal for ringing the alarm ringing device is collected in the on-site monitoring control subsystem, the alarm type is determined, the alarm type data is generated, and the network is transmitted via the network. To the central monitoring and control subsystem, and the alarm ringing device in the central monitoring and control subsystem changes the tone according to the alarm type and sounds the alarm ringing symbol corresponding to the type on the monitor screen. it can.

  Therefore, when equipment abnormalities occur simultaneously in multiple monitored and controlled equipments, all local computers are classified according to the alarm ringing information that is output when equipment abnormality is detected, especially major faults, minor faults, and other importance levels. The alarm information can be easily and quickly grasped by the operator of the central supervisory control subsystem.

  Further, since the alarm type data to be transmitted can reduce the amount of transmission data compared to the image data, the network load can also be reduced. In addition, since it can be configured by simply using the various monitoring and control devices such as existing computers and adding only the necessary functions, the cost can be reduced compared to the case of modifying or replacing existing computers. Can be planned.

  Therefore, according to the present embodiment, even when equipment abnormalities occur simultaneously in a plurality of equipment to be monitored and controlled, all of the equipment abnormalities and their degrees can be monitored centrally by sounding an alarm according to the type and displaying the screen. It is possible to provide a high-performance, low-cost remote monitoring control system and method that can be easily and quickly grasped by the operator of the control subsystem and can reduce the network load.

[Modification]
In the first embodiment, the configuration in which the alarm sounding device is sounded by the computer of the central supervisory control subsystem has been described. However, in the present invention, the function for sounding the alarm sounding device is not limited to the computer. Alternatively, a dedicated device that transmits or processes only alarm type data may be used. In this case, the computer need not have a function for sounding the alarm sounding device, but only a function for displaying image data indicating the alarm type. Furthermore, as another modification, a dedicated device that transmits or processes only the alarm type data may have both a function of causing the alarm sounding device and a function of displaying image data indicating the alarm type.

  That is, in the present invention, the central supervisory control processing unit is a wide concept including not only a computer but also a device that performs various processes in the central supervisory control subsystem. Therefore, the alarm included in the central supervisory control processor The data ringing / display control unit is not limited to a computer, and can be freely configured by one or a plurality of devices that perform various processes.

[ First Reference Example ]
[Constitution]
FIG. 4 is a block diagram showing the configuration of the remote monitoring control system according to the first reference example . As shown in FIG. 4, the remote monitoring control system of the present reference example has the same configuration as the local monitoring control subsystem S1 in the configuration of the first remote monitoring control system shown in FIG. A data editing / transmission program 302, a message image data extraction program 303, and a transmission program 304 are added, and a message image data reception program 305 is added to the configuration of the central monitoring control subsystem S2.

  Here, the image data editing / transmission program 302, the message image data extraction program 303, and the transmission program 304 are incorporated in the image processing computer 301. The image data editing / transmission program 302 is a part corresponding to the image data editing / transmission apparatus 109 in the first embodiment.

[Action]
The first reference example having the above configuration has the same operation as that of the first embodiment, but has the following operation with the addition of the above configuration.

  First, in general, in many on-site monitoring and control computers 101, the equipment abnormality detected by the equipment monitoring control program 102 is the content of the equipment abnormality in a message area that is a specific screen-like position displayed on the monitor device 104. Is displayed in the message format shown.

In this reference example , image data obtained by collecting signals for the monitor device 104 of the on-site supervisory control computer 101 having such a function via the signal distributor 103 and the image signal collecting device 108 are shown in FIG. The image data editing / transmission program 302 having the same function as the image data editing / transmission apparatus 109 transmits the image data to the central monitoring control subsystem S2.

  On the other hand, the image data editing / transmission program 302 notifies the message image data extraction program 303 of the image data constituting the screen to be collected. The message image data extraction program 303 extracts only the image data of the message area from the received image data. The extracted message image data is sent to the message image data receiving program 305 of the central supervisory control computer 131 of the central supervisory control subsystem S2 via the transmission program 304 and the network 120. The message image data is displayed on the monitor device 134 by the image data display program 133.

  FIG. 5 is a diagram illustrating an example of the processing content 311 of the local monitoring control subsystem S1 and the processing content 312 of the central monitoring control subsystem S2 in this case. In FIG. 5, 321 is an example of a screen including a single message display area displayed on the monitor device 104 by the local monitoring control computer 101, and 322 is displayed on the monitoring device 134 by the central monitoring control computer 131. Each of the screen examples including a plurality of message display areas is shown.

  In FIG. 5, 303P is a flowchart showing an example of the message image data extraction program 303 of the image processing computer 301. That is, the message image data extraction program 303 of the image processing computer 301 collects the image data of the screen displayed by the on-site monitoring control computer 101, extracts the image data of the message display area included therein, and displays it. Each time the content changes, it is sent to the central supervisory control subsystem S2.

  In FIG. 5, 305P and 133P are flowcharts showing examples of the message image data reception program 305 and the image data display program 133 of the central supervisory control computer 131, respectively. That is, the message image data reception program 305 of the central supervisory control computer 131 stores all received message image data in a file in the order of reception together with a name that identifies the local supervisory control computer. Then, the image data display program 133 displays the stored message image data of the file on the monitor device 134 in the order of reception together with the name for identifying the local monitoring control computer.

[effect]
According to the first reference example as described above, the following effects can be obtained in addition to the effects of the first embodiment.

  In other words, in many computer systems equipped with a monitor device such as a computer for on-site monitoring and control, the monitor device displays the status of the monitored equipment and the contents of the data in the computer in a message format on the screen. Be notified. Since these messages are important information for the operator, the messages are often displayed at specific predetermined positions on the screen so that the operator can easily grasp them.

In this reference example , this message image data displayed by a plurality of local supervisory control computers is sent to the central supervisory control subsystem in real time, and all local supervisory control computer messages are displayed on the central supervisory control computer monitor. Since it can be displayed and notified to the operator of the central supervisory control subsystem, even if there are equipment abnormalities at the same time in multiple supervisory control target equipment, it is possible to easily grasp all equipment abnormalities. Operational efficiency for operators is improved.

Therefore, according to this reference example , even when equipment abnormalities occur simultaneously in a plurality of equipment to be monitored and controlled, all of the equipment abnormalities and their degrees are displayed according to the type of alarm sound and their screen display and message image display. Therefore, it is possible to provide a high-performance, low-cost remote monitoring and control system and method that allows the operator of the central monitoring and control subsystem to easily and quickly grasp the network load.

[Modification]
In the first reference example , the case where an image processing computer is provided in the local monitoring control subsystem separately from the local monitoring control computer has been described, but if it can be incorporated into the local monitoring control computer, In the present invention, a function for extracting message image data may be incorporated into an existing local monitoring and control computer as it is. That is, in the present invention, the message data extraction / transmission unit that extracts and transmits message image data can be freely configured.

[ Second Reference Example ]
[Constitution]
FIG. 6 is a block diagram showing a configuration of a remote monitoring control system according to the second reference example . As shown in FIG. 6, the remote monitoring control system of the present reference example has a message image in the image processing computer 301 of the local monitoring control subsystem S1 in the configuration of the second remote monitoring control system shown in FIG. A message image data extraction / conversion program 401 is incorporated in place of the data extraction program, and the central monitoring control computer 131 of the central monitoring control subsystem S2 includes the message character data reception program instead of the message image data reception program. 402 is incorporated.

[Action]
The second reference example having the above-described configuration has the same operation as that of the first reference example , but further has the following operation in accordance with the change in the configuration.

That is, in this reference example , the image data editing / transmission program 302 transmits the image data constituting the screen to be collected to the central monitoring control subsystem S2 and also notifies the message image data extraction / conversion program 401. The message image data extraction / conversion program 401 extracts only the image data in the message area from the received image data, and converts it into character data.

  Specifically, the message image data extraction / conversion program 401 converts, for example, bitmap format message image data into text format character codes. The converted character data of the message is sent to the message character data receiving program 402 of the central supervisory control computer 131 of the central supervisory control subsystem S2 via the transmission program 304 and the network 120. The character data of the message is displayed on the monitor device 134 by the image data display program 133.

  FIG. 7 is a diagram showing an example of the processing content 411 of the local monitoring control subsystem S1 and the processing content 412 of the central monitoring control subsystem S2 in this case. In FIG. 7, 421 is an example of a screen including a single message display area displayed on the monitor device 104 by the on-site monitoring control computer 101, and 422 is displayed on the monitoring device 134 by the central monitoring control computer 131. Each of the screen examples including a plurality of message display areas is shown.

  In FIG. 7, 401P is a flowchart showing an example of the message image data extraction / conversion program 401 of the image processing computer 301. That is, the message image data extraction / conversion program 401 of the image processing computer 301 collects image data of the screen displayed by the local monitoring control computer 101, extracts the image data of the message display area included therein, Each time the display content changes, it is converted into a character code to be converted into message character data and transmitted to the central monitoring control subsystem S2.

  In FIG. 7, reference numerals 402P and 133P are flowcharts showing examples of the message character data reception program 402 and the image data display program 133 of the central supervisory control computer 131, respectively. That is, the message character data reception program 402 of the central supervisory control computer 131 stores all received message character data in a file in the order of reception together with a name that identifies the local supervisory control computer. Then, the image data display program 133 displays the stored message character data of the file on the monitor device 134 in the order of reception together with the name identifying the local monitoring control computer.

[effect]
According to the second reference example as described above, the following effects can be obtained in addition to the effects of the first reference example .

That is, when the number of equipment to be monitored and controlled is increased, with the increase in the number of local monitoring and control subsystem, the number of message data to be transmitted from them also increases, but according to the present embodiment, By converting the message data from the image data to the character code, the data size can be remarkably reduced, so that the data amount can be greatly reduced as compared with the case where the message image data is transmitted as it is. Therefore, even when the network has a small capacity, sound responsiveness can be ensured.

[ Third Reference Example ]
[Constitution]
FIG. 8 is a block diagram showing a configuration of a remote monitoring control system according to the third reference example . As shown in FIG. 8, the remote monitoring control system of the present reference example has the configuration of the conventional remote monitoring control system shown in FIG. 27, instead of the image data editing / transmitting device 109 of the local monitoring control subsystem S1, An image processing computer 501, an image data change determination program 502, and an image data transmission program 503 are provided. Here, the image data change determination program 502 and the image data transmission program 503 are incorporated in the image processing computer 501.

[Action]
In the third reference example having the above structure, the basic action, is similar to the conventional system shown in FIG. 27, in the present embodiment, with the change of the above configuration, the following additional It has such an action.

  First, an image signal displayed on the monitor device 104 of the on-site supervisory control computer 101 is taken into the image signal collecting device 108 via the signal distributor 103 at a fixed period, and an image data change determination program 502 of the image processing computer 501 is obtained. Will be notified. The image data change determination program 502 stores the previously notified image data, and compares the newly notified current image data with the previously stored image data. If the image change condition set in advance is met, the current image data is transmitted by the image data transmission program 503.

  For example, the entire screen of the current image data is divided into a predetermined number of meshes, and a partial comparison with the previous image data is performed for each mesh. As a result, if there is one or more meshes showing a change of a change reference level or more set in advance with respect to the previous image data, the image data transmission program 503 stores the image data of the one or more meshes. Send. On the other hand, even if there is a change, for a mesh that shows only a slight change that does not satisfy the change reference level, the image data of the mesh is discarded.

  The image data transmitted by the image data transmission program 503 is notified via the network 120 to the image data reception / collection program 132 of the central supervisory control computer 131 of the central supervisory control subsystem S2. The image data reception / collection program 132 causes the received image data to be displayed superimposed on the image data currently displayed by the image data display program 133.

  FIG. 9 is a diagram showing an example of the processing contents 511 of the image data change determination program 502 in the local monitoring control subsystem S1 in this case. In FIG. 9, 512 is monitored by the local monitoring control computer 101. FIG. 10 is an example of a screen including a display change portion 513 displayed on the device 104. FIG. Further, 502P in FIG. 9 is a flowchart showing an example of the image data change determination program 502 of the image processing computer 501.

[effect]
According to the third reference example as described above, in the local monitoring and control subsystem, it is possible to avoid transmission of image data that does not satisfy the condition by transmitting only the image data that satisfies the preset image change condition. Therefore, only necessary image data can be efficiently transmitted to the central supervisory control subsystem.

  Therefore, it is possible to avoid an increase in the amount of transmitted image data due to various factors when a facility abnormality occurs in the equipment to be monitored and controlled, and to ensure sufficient image display performance even in a small-capacity network. A low-cost remote monitoring control system and method can be provided.

[Modification]
In the third reference example , a case has been described in which an image data change determination / transmission unit configured to select and transmit image data by determining a change in image data is configured by an image processing computer and a program. The image data change determination / transmission unit may be configured by using a dedicated image processing apparatus including a microprocessor and firmware, and the specific configuration can be freely changed.

[ Fourth Reference Example ]
[Constitution]
FIG. 10 is a block diagram illustrating a configuration of a remote monitoring control system according to the fourth reference example . As shown in FIG. 10, the remote monitoring control system of the present reference example is replaced with the image data editing / transmitting device 109 of the local monitoring control subsystem S1 in the configuration of the conventional remote monitoring control system shown in FIG. An image processing computer 601, a flicker countermeasure image data editing program 602, and a flicker countermeasure image data transmission program 603 are provided, and a flicker countermeasure image data restoration program 604 is added to the central monitoring control computer 131 of the central monitoring control subsystem S2. It is a thing.

  Here, the flicker countermeasure image data editing program 602 and the flicker countermeasure image data transmission program 603 are incorporated in the image processing computer 601. The flicker countermeasure image data restoration program 604 receives the image data from the image data reception / collection program 132 and restores it, and then passes the restored data to the image data display program 133.

[Action]
In the fourth reference example having the above structure, the basic action, it is similar to the conventional system shown in FIG. 27, in the present embodiment, with the change of the above configuration, the following additional It has such an action.

  First, an image signal displayed on the monitor device 104 of the on-site monitoring control computer 101 is taken into the image signal collecting device 108 via the signal distributor 103 and is input to the image data editing program 602 for preventing flicker of the image processing computer 601. Be notified. When the flicker countermeasure image data editing program 602 detects the flicker portion of the screen, if it is the first time, the flicker display and flicker extinction image data and unique code data for specifying the image data are taken as a set. In the second and subsequent times, only code data specifying flicker display or flicker off is transmitted by the flicker countermeasure image data transmission program 603.

  The data transmitted by the flicker countermeasure image data transmission program 603 is notified to the image data reception / collection program 132 of the central supervisory control computer 131 of the central supervisory control subsystem S2 via the network 120 to restore the flicker countermeasure image data. The program 604 is notified.

  In the flicker countermeasure image data restoration program 604, the image data transmitted for the first time is displayed on the monitor device 134 by the image data display program 133, and the image data and the code data for specifying the image data are associated with each other and stored. To do. The flicker countermeasure image data restoration program 604 causes the image data display program 133 to superimpose and display the image data corresponding to the code data on the currently displayed image data when the code data is received for the second and subsequent times.

  FIG. 11 is a flowchart showing the flicker countermeasure image data editing program 602 of the image processing computer 601 and an example of the flicker countermeasure image data restoration program 604 of the central supervisory control computer 131 in this case 602P and 604P. FIG. 12 is a diagram for explaining the flow of processing of image data.

[effect]
According to the fourth reference example as described above, in the local monitoring and control subsystem, the image data indicating the screen displayed on the monitor device including the flicker portion is transmitted, and the image data of one flicker is transmitted only for the first time. Thus, by transmitting only the code data from the second time onward, the amount of transmission data can be greatly reduced compared to the case of transmitting a large amount of image data corresponding to the flicker change.

  That is, the screen including the flicker portion displayed on the monitor device in the local monitoring control subsystem can be displayed in the central monitoring control subsystem as well, and the amount of transmission data to be transmitted can be greatly reduced.

  Therefore, it is possible to avoid an increase in the amount of transmitted image data due to flicker when a facility abnormality occurs in the equipment to be monitored and controlled, and to ensure sufficient image display performance even in a small-capacity network. A cost remote monitoring control system and method can be provided.

[Modification]
In the fourth reference example , the case where the image data change determination / transmission unit that processes the image data regarding flicker is configured by the image processing computer and the program has been described. However, as described above, in the present invention, the image data The change determination / transmission unit may be configured by using a dedicated image processing apparatus including a microprocessor and firmware, and the specific configuration can be freely changed.

[ Fifth Reference Example ]
[Constitution]
FIG. 13 is a block diagram showing a configuration of a remote monitoring control system according to the fifth reference example . As shown in FIG. 13, the remote monitoring control system of the present reference example has the configuration of the conventional remote monitoring control system shown in FIG. 27, instead of the image data editing / transmitting device 109 of the local monitoring control subsystem S1, An image processing computer 701, an unnecessary image data editing program 702, and an image data transmission program 703 are provided. Here, the unnecessary image data editing program 702 and the image data transmission program 703 are incorporated in the image processing computer 701.

[Action]
In the fifth reference example having the above structure, the basic action, is similar to the conventional system shown in FIG. 27, in the present embodiment, with the change of the above configuration, the following additional It has such an action.

  First, an image signal displayed on the monitor device 104 of the on-site monitoring control computer 101 is taken into the image signal collecting device 108 via the signal distributor 103 at a fixed period, and an unnecessary image data editing program 702 of the image processing computer 701 is obtained. Will be notified. The unnecessary image data editing program 702 stores the past N times of the notified image data, and compares the newly notified image data with the N times of stored data. As a result, transmission by the image data transmission program 703 is performed on the condition that it differs from all the stored data for N times. Here, N is a numerical value of 1 or 2 or more, and is determined individually through adjustment work in accordance with the nature of noise superimposed on the display signal of the monitor device.

  The image data transmitted by the image data transmission program 703 is notified via the network 120 to the image data reception / collection program 132 of the central supervisory control computer 131 of the central supervisory control subsystem S2. The image data reception / collection program 132 causes the received image data to be displayed superimposed on the image data currently displayed by the image data display program 133.

  FIG. 14 is a diagram showing an example of the processing contents 711 of the unnecessary image data editing program 702 in the local monitoring control subsystem S1 in this case. In FIG. 14, 712 is monitored by the local monitoring control computer 101. FIG. 10 is an example of a screen including a display change portion 713 displayed on the device 104. FIG. Further, reference numeral 702P in FIG. 14 is a flowchart showing an example of an unnecessary image data editing program 702 of the image processing computer 701.

[effect]
According to the fifth reference example as described above, it is possible to remove a relatively high level of image noise superimposed on the display signal of the monitor device or the image data collection device in the on-site monitoring control subsystem. In other words, it is possible to avoid transmitting as changed image data when the noise component included in the image data is detected and the image change is due to the noise component, while transmitting only the changed image data. Only the necessary image data can be efficiently transmitted to the central supervisory control subsystem.

  Therefore, it is possible to avoid an increase in the amount of transmission of image data due to noise when a facility abnormality occurs in the equipment to be monitored and controlled, and to ensure sufficient image display performance even in a small-capacity network. A cost remote monitoring control system and method can be provided.

[Modification]
In the fifth reference example , the case where the image data change determination / transmission unit that processes the image data caused by noise is configured by the image processing computer and the program has been described. However, as described above, in the present invention, The image data change determination / transmission unit may be configured using a dedicated image processing apparatus including a microprocessor and firmware, and a specific configuration can be freely changed.

[ Sixth Reference Example ]
[Constitution]
FIG. 15 is a block diagram illustrating a configuration of a remote monitoring control system according to a sixth reference example . As shown in FIG. 15, the remote monitoring control system of the present reference example has the same configuration as the conventional remote monitoring control system shown in FIG. An image signal collection unit 803 and an image data editing / transmission unit 804 are added. Here, the image signal collection unit 803 and the image data editing / transmission unit 804 are incorporated in the camera image data transmission device 802.

[Action]
In a sixth reference example having the above structure, the basic action, is similar to the conventional system shown in FIG. 27, in the present embodiment, with the addition of the above configuration, the following additional It has such an action.

  First, a video signal indicating a video of the monitoring control target facility 100 captured by the monitor camera 801 is converted into image data by the image signal collection unit 803 of the camera image data transmission device 802 and transmitted by the image data editing / transmission function 804. The The transmitted camera image data is notified to the image data reception / collection program 132 of the central supervisory control computer 131 of the central supervisory control subsystem S2 via the network 120 and displayed on the monitor device 134 by the image data display program 133. .

  On the other hand, in order to transmit the image data from the image data editing / transmission unit 804 of the camera image data transmission device 802 to the central monitoring control computer 131 of the central monitoring control subsystem S2 via the network 120, It is necessary to perform a so-called login procedure, which is a procedure for connecting the image data editing / transmission unit 804.

  In order to provide versatility, here, the operator operates the keyboard 136 and the mouse 137 by the image data editing / transmitting device connection program 135 of the central supervisory control computer 131 to interact with the screen displayed on the monitor device 134. However, specific data specific to the image data editing / transmission unit 804 is input.

  In this way, the image of the monitor camera 801 can be displayed on the monitor device 134 of the central monitoring control subsystem S2 in the same manner as the image displayed on the monitor device 104 as a processing result by the on-site monitoring control computer 101. . The operator can display these two types of image data on the monitor device 134 simultaneously or alternately in a multi-screen manner. Such a display method can be easily realized by a display function generally incorporated in a computer.

[effect]
According to the sixth reference example as described above, the image displayed by the existing computer and the image of the on-site monitor camera can be centrally managed, and can be easily selected and displayed by the operator of the central monitoring control subsystem. A low-cost remote monitoring control system and method can be provided. As the camera image data transmission device, a commercially available image transmission device can be used.

[ Seventh Reference Example ]
[Constitution]
FIG. 16 is a block diagram illustrating a configuration of a remote monitoring control system according to a seventh reference example . As shown in FIG. 16, the remote monitoring control system of the present reference example is the same as the remote monitoring control system according to the sixth reference example shown in FIG. An automatic operation program 901 is added to 131.

As described above, in general, a screen displayed on the monitor device 134 by operating the keyboard 136 and the mouse 137 to perform a login procedure for connecting an external transmission function unit such as the image data editing / transmission unit 804. It is necessary to input predetermined data specific to the transmission function unit while interacting with the transmission function unit. On the other hand, the automatic operation program 901 of the present reference example stores a series of all keyboard and mouse operation procedures necessary for executing a specific procedure operation specific to the image transmission apparatus.

[Action]
In the seventh reference example having the above-described configuration, the basic operation is the same as that of the sixth reference example. However, in the present reference example , the following configuration is further added with the addition of the above configuration. Has an effect.

  That is, when the operator of the central supervisory control subsystem S2 clicks a symbol indicating execution on the screen of the monitor device 134, the automatic operation program 901 performs the keyboard and mouse operation in accordance with the stored operation procedure. The data is automatically and sequentially notified to the local supervisory control computer selection connection program 135. FIG. 17 is a diagram for explaining an example functional configuration of the automatic operation program 901 in this case.

As a result, similar to the sixth reference example , two different types of images, that is, the image of the monitor camera 801 and the image displayed on the monitor device 104 as the processing result by the local monitoring control computer 101 are converted into the central monitoring control subsystem. On the monitor device 134 of S2, it can be displayed simultaneously or alternately in a multi-screen manner.

[effect]
According to the seventh reference example as described above, in addition to the same effects as in the sixth reference example , the following effects can be further obtained. That is, even when an arbitrary image transmission device is used as the camera image data transmission device, the operator of the central monitoring and control subsystem does not need to perform an operation for a normal login procedure with a keyboard or a mouse. Since the login procedure can be automatically executed with only one touch operation, the image of the monitor camera can be displayed more easily and efficiently.

[ Eighth Reference Example ]
[Constitution]
FIG. 18 is a block diagram showing a configuration of a remote monitoring control system according to the eighth reference example . As shown in FIG. 18, the remote monitoring control system of the present reference example is obtained by changing a part of the configuration of the conventional remote monitoring control system shown in FIG. 27 as follows.

  That is, in the local monitoring control subsystem S1, a keyboard (KB) / mouse data reception control device 1001 and a signal switcher 1002 are provided in place of the keyboard (KB) / mouse data reception device 110 and signal synthesizer 111 of the conventional system. Furthermore, a new changeover switch (SW) 1003 connected to the keyboard (KB) / mouse data reception control device 1001 is provided. Further, in the central monitoring control subsystem S2, a new keyboard (KB) / mouse data transmission control device 1004 having a keyboard / mouse signal switching function instead of the keyboard (KB) / mouse data transmission device 139 of the conventional system. And a changeover switch (SW) 1005 are provided.

  Here, the KB / mouse data reception control device 1001 has a function of notifying the signal switcher 1002 of a switching request for enabling the local KB / mouse in accordance with the operation of the switching SW 1003 by the operator. Have. The KB / mouse data reception control device 1001 also receives a request from the KB / mouse data transmission control device 1004 of the central supervisory control subsystem S2 to validate the KB / mouse on the central supervisory control subsystem S2 side. The signal switcher 1002 has a function of performing a switch request notification. The KB / mouse data reception control device 1001 is further generated in accordance with a keyboard and mouse operation sent from the KB / mouse data transmission control device 1004 of the central supervisory control subsystem S2 while being connected to the central supervisory control subsystem S2. It has a function of notifying the signal switcher 1002 of the signal.

[Action]
In the eighth reference example having the above structure, the basic action, is similar to the conventional system shown in FIG. 27, in the present embodiment, with the change of the above configuration, the following additional It has such an action.

  First, an operation when the switching SW 1005 on the central monitoring control subsystem S2 side is operated will be described. A change in state associated with the operation of the switching SW 1005 is detected by the KB / mouse data transmission control device 1004 and notified to the KB / mouse data reception control device 1001 of the local monitoring control subsystem S1 via the network 120. In this case, the KB / mouse data reception control device 1001 notifies the signal switcher 1002 of the center side connection request.

  Thereafter, until the local side connection request is made, the operation signal of the keyboard 136 and the mouse 137 on the central supervisory control subsystem S2 side is transmitted from the KB / mouse data transmission control device 1004 of the central supervisory control subsystem S2 to the network. The information is notified to the equipment monitoring control program 102 of the local monitoring control computer 101 via the KB / mouse data reception control device 1001 and the signal switch 1002 of the local monitoring control subsystem S1. That is, the local supervisory control computer 101 is operated based on the operation signals of the keyboard 136 and mouse 137 on the central supervisory control subsystem S2.

  Next, an operation when the switching SW 1003 on the local monitoring control subsystem S1 side is operated will be described. A change in state associated with the operation of the switching SW 1003 is detected by the KB / mouse data reception control device 1001, and a local side connection request is notified to the signal switch 1002. Thereafter, until a request for connection on the central side is made, the operation signals of the keyboard 106 and mouse 107 on the local monitoring control subsystem S1 side pass through the signal switcher 1002 and the equipment monitoring control program 102 of the local monitoring control computer 101. Will be notified. That is, the local monitoring control computer 101 is operated based on the operation signals of the keyboard 106 and mouse 107 on the local monitoring control subsystem S1 side.

[effect]
According to the eighth reference example as described above, each time the switch SW provided on the local monitoring control subsystem side and the central monitoring control subsystem side is pressed, the operation authority of the computer of the local monitoring control subsystem is set to the central side. And on-site side can be switched alternately. Therefore, it is possible to provide a high-performance, low-cost remote monitoring and control system and method that can prevent competition between the central side and the local side.

[ Ninth Reference Example ]
[Constitution]
FIG. 19 is a block diagram illustrating a configuration of a remote monitoring control system according to the ninth reference example . As shown in FIG. 19, the remote monitoring control system of the present reference example has a message sent to the image processing computer 301 having the configuration of the local monitoring control subsystem S1 in the configuration of the second remote monitoring control system shown in FIG. A cursor position detection program 1101 is incorporated in place of the image data extraction program for use, and a cursor data reception program 1102 is incorporated in the central supervisory control computer 131 of the central supervisory control subsystem S2 in place of the message image data reception program. It is a thing.

[Action]
The ninth reference example having the above-described configuration has the same operation as that of the first embodiment, but has the following operation in accordance with the change in the above configuration.

  First, in order to perform supervisory control of the equipment to be monitored and controlled, the operator of the central supervisory control subsystem S2 operates the mouse 137 to display the cursor position displayed on the monitor device 104 of the local supervisory control computer 101. Move. That is, by placing the cursor on the facility operation button displayed on the monitor device 134 of the central monitoring control subsystem S2 and performing a click operation, the local monitoring control computer 101 is notified of the cursor position.

In this reference example , image data including a cursor display obtained by collecting signals for the monitor device 104 of the on-site supervisory control computer 101 having such a function through the signal distributor 103 and the image signal collecting device 108. Is transmitted to the central monitoring control subsystem S2 by the image data editing / transmission program 302 and displayed on the monitor device 134 by the image data display program 133 via the image data reception / collection program 132.

  On the other hand, the image data editing / transmission program 302 notifies the cursor position detection program 1101 of the images constituting the screen to be collected, and detects the cursor image type and display position of the cursor in the screen. In this case, the cursor position detection program 1101 uses the predicted cursor movement position to be calculated as a start position, and pattern matching processing with any of a plurality of cursor image types registered in advance in the cursor shape data file of the cursor position detection program 1101 To detect the cursor image type and display position of the cursor in the screen. The reason why the cursor movement predicted position calculated by the cursor position detection program 1101 is used as the start position is to shorten the detection time.

Here, the cursor shape data file included in the cursor position detection program 1101 stores a plurality of cursor image pattern data having different specific shapes used in the screen, together with a unique code assigned to each of them. Here, the plurality of cursor image pattern data are data of symbol shapes such as generally used arrow shapes, hand shapes, and cross shapes. In other words, the cursor appearing on the screen may change in some of such predetermined shapes. Therefore, in this reference example , not only the cursor display position data but also the cursor position is displayed. The data in the code format indicating the image type is also determined, and both data are combined to form cursor position detection data, which is notified to the central monitoring control subsystem S2.

  In this case, the cursor image type detected by the pattern matching process using the cursor shape data file as described above is obtained as code format data and combined with code format data such as coordinate data indicating the display position. As a result, the code position cursor position detection data indicating the cursor type and the display position is created.

  Data in the code format indicating the cursor image type and display position detected by the cursor position detection program 1101 is notified to the cursor data reception program 1102 of the central monitoring control subsystem S2 via the transmission program 304. In this case, the cursor data reception program 1102 has the same cursor shape data file as the cursor position detection program 1101, and notifies the image data display program 133 of the received cursor image type and display position data. The image is superimposed on the screen being displayed on the device 134 and displayed.

In this reference example , the cursor included in the image data for the monitor device 104 of the on-site monitoring control computer 101 is processed by the cursor position detection program 1101 and the cursor data receiving program 1102 in the central monitoring control subsystem S2. It is displayed on the monitor device 134. On the other hand, the image data for the monitor device 104 including the cursor image is processed by the central monitoring control subsystem S2 by the processing of the image data editing / transmission program 302 and the image data reception / collection program 303, as in the first reference example . It is displayed on the monitor device 134.

  That is, the cursor included in the image data for the monitor device 104 of the local monitoring control computer 101 is displayed on the monitor device 134 of the central monitoring control subsystem S2 in both of these two different processes.

  Here, since the data transmitted from the cursor position detection program 1101 to the cursor data reception program 1102 is code-format data having a very small amount of information compared to image data, the processing of these programs 1101 and 1102 is performed. Thus, data relating to cursor movement and cursor symbol change can be transmitted at a much higher speed and displayed on the screen as compared with the processing of the other programs 302 and 303.

  Therefore, even when the capacity of the network 120 is small, it is possible to shorten the time required to complete transmission of data related to cursor movement and cursor symbol change. It can be displayed on the monitor device 134 of the subsystem S2. Therefore, the screen operation of the operator of the central supervisory control subsystem S2 can be performed more smoothly.

FIG. 20 is a flowchart showing an example 1101P of the cursor position detection program 1101 of the local monitoring control computer 101 in this reference example , and an example 1111 of a cursor shape data file that the program 1101P has in advance. FIG. 21 is a flowchart showing an example 1102P of the cursor data reception program 1102 of the central supervisory control computer 131 in this case.

[effect]
According to the ninth reference example as described above, in addition to the same effects as those of the first embodiment, the following effects can be further obtained.

In other words, in this reference example , the cursor symbol included in the image data is detected by a technique called template matching, and data indicating the image type and display position of the cursor is transmitted to the central monitoring control subsystem. The cursor symbol included in the image data displayed by the local supervisory control computer can be displayed in the same position and in the same shape on the screen displayed on the monitor device of the central supervisory control computer. In this case, since the data indicating the cursor display position and the data indicating the image type of the cursor are both data in the code format, the data size is markedly greater than when data indicating the same content is transmitted as image data. Can be reduced.

  Therefore, since the size of the transmission data indicating cursor movement and cursor symbol change can be reduced, data related to cursor movement and cursor symbol change can be displayed on the monitor control work on the central supervisory control subsystem side even in a small-capacity network. It is possible to provide a high-performance and low-cost remote monitoring and control system and method that can transmit at a necessary speed and display on a monitor device, which is excellent in cursor display responsiveness and operability.

[ Tenth Reference Example ]
[Constitution]
FIG. 22 is a block diagram illustrating a configuration of a remote monitoring control system according to the tenth reference example . As shown in FIG. 22, the remote monitoring control system of the present reference example has a cursor in the image processing computer 301 having the configuration of the local monitoring control subsystem S1 in the configuration of the tenth remote monitoring control system shown in FIG. A specific image position detection program 1201 is incorporated in place of the position detection program, and a specific image data reception program 1202 is incorporated in the central supervisory control computer 131 of the central supervisory control subsystem S2 instead of the cursor data reception program. It is.

[Action]
The tenth reference example having the above-described configuration has the same operation as that of the first embodiment, but has the following operation in accordance with the change of the above configuration.

First, when the signal for the monitor device 104 of the on-site supervisory control computer 101 includes not only a cursor display but also a specific image having a specific shape called pop-up or pull-down as a partial image in the image data, this reference example The image data including the display of these specific images is collected via the signal distributor 103 and the image signal collecting device 108. Then, the image data including the specific image display obtained by collecting through the signal distributor 103 and the image signal collecting device 108 is transmitted to the central monitoring control subsystem S2 by the image data editing / transmitting program 302, and the image data The image data display program 133 displays the screen on the monitor device 134 via the reception collection program 132.

  On the other hand, the image data editing / transmission program 302 notifies the image constituting the screen to be collected to the specific image position detection program 1201 to detect the type and display position of the specific image such as a cursor, pop-up, or pull-down in the screen. . In this case, the specific image position detection program 1201 performs pattern matching processing with any of the image types of a plurality of specific images registered in advance in the specific image shape data file included in the specific image position detection program 1201. Detects the type and display position of a specific image such as a cursor, pop-up, or pull-down.

  Here, the specific image shape data file included in the specific image position detection program 1201 stores a plurality of specific image pattern data having different specific shapes used in the screen together with a unique code assigned to each of them. For example, it is composed of a cursor shape data file storing a plurality of cursor image pattern data and a pop-up / pull-down image data file storing a plurality of pop-up / pull-down image pattern data.

  Then, the image type of the specific image detected by the pattern matching process using the specific image shape data file is obtained as code format data, and is combined with code format data such as coordinate data indicating the display position. Specific image position detection data in a code format indicating the type and display position of a specific image such as a cursor, pop-up, or pull-down is created.

  Data in the code format indicating the image type and display position of the specific image detected by the specific image position detection program 1201 is notified to the specific image data reception program 1202 of the central monitoring control subsystem S2 via the transmission program 304. . In this case, the specific image data receiving program 1202 has the same specific image shape data file as the specific image position detection program 1201 in advance, and the image data display program 133 stores the data of the received image type and display position. The specific image is superimposed on the screen being displayed on the monitor device 134 and displayed.

As described above, in this reference example , the specific image such as the cursor, pop-up, and pull-down included in the image data for the monitor device 104 of the on-site monitoring control computer 101 is the specific image position detection program 1201 and the specific image data reception program. By the processing of 1202, the information is displayed on the monitor device 134 of the central supervisory control subsystem S2. On the other hand, the image data for the monitor device 104 including those specific images is processed by the central monitoring control subsystem by the processing of the image data editing / transmission program 302 and the image data reception / collection program 303 as in the ninth reference example. It is displayed on the monitor device 134 of S2.

  That is, specific images such as a cursor, pop-up, and pull-down included in the image data for the monitor device 104 of the local monitoring and control computer 101 are displayed on the monitor device 134 of the central monitoring control subsystem S2 in both of these two different processes. Will be displayed.

  Here, the data transmitted from the specific image position detection program 1201 to the specific image data reception program 1202 is data in a code format with an extremely small amount of information compared to the image data. Therefore, by performing the processing of these programs 1201 and 1202, the data related to the movement of the specific image and the display change such as the symbol change of the specific image, display / non-display switching, etc., compared to the processing of the other programs 302 and 303 Data can be transmitted at a very high speed and displayed on the screen.

  Therefore, even when the capacity of the network 120 is small, it is possible to reduce the time required to complete transmission of data related to movement and display change of a specific image. A screen showing the display change can be displayed on the monitor device 134 of the central supervisory control subsystem S2. Therefore, the screen operation of the operator of the central supervisory control subsystem S2 can be performed more smoothly.

FIG. 23 is a flowchart showing an example 1201P of the specific image position detection program 1201 of the local monitoring control computer 101 in this case, and a diagram showing an example 1211 of a specific image shape data file preliminarily included in the program 1201P. In this example, the specific image shape data file 1211 includes a cursor shape data file 1212 similar to the cursor shape data file 1111 shown for the ninth reference example , and a pop-up / pull-down image data file 1213.

[effect]
According to the tenth reference example as described above, in addition to the same effects as those of the first embodiment, the following effects can be further obtained.

That is, in this reference example , not only the cursor symbol included in the image data but also various other specific images such as pop-ups and pull-downs are detected by a technique called template matching, and images of individual specific images are detected. Data indicating the type and display position can be transmitted to the central supervisory control subsystem.

  As a result, not only the cursor symbol included in the image data displayed by the on-site monitoring control computer but also various other specific images such as pop-ups and pull-downs are displayed on the monitoring device of the central monitoring control computer. The same shape can be displayed at the same position on the screen. In this case, since the data indicating the display position of each specific image and the data indicating the image type of each specific image are both data in code format, compared to the case where data indicating the same content is transmitted as image data. Thus, the data size can be remarkably reduced.

  Therefore, since the size of transmission data indicating the movement or display change of a specific image such as a cursor, pop-up, or pull-down can be reduced, the data related to the movement or display change of a specific image can be transferred to the central monitoring control sub A high-performance, low-cost remote monitoring and control system with excellent display responsiveness and operability for specific images that can be transmitted and displayed on the monitor device at the speed required for screen operation in the system monitoring and control work. A method can be provided.

[ Eleventh Reference Example ]
[Constitution]
FIG. 24 is a block diagram showing a configuration of a remote monitoring control system according to the eleventh reference example . As shown in FIG. 24, the remote monitoring control system of this reference example has a cursor in the central monitoring control computer 131 of the central monitoring control subsystem S2 in the configuration of the tenth remote monitoring control system shown in FIG. A cursor position detection / transmission program 1301 is incorporated in place of the data reception program, and the cursor position data reception program 1302 and the cursor position control program are incorporated in the image processing computer 301 having the configuration of the local monitoring control subsystem S1 instead of the transmission program. 1303 is incorporated.

[Action]
The eleventh reference example having the above-described configuration has the same operation as that of the first embodiment, but has the following operation in accordance with the change of the above-described configuration.

First, in the tenth reference example described above, the cursor operation result by the mouse 137 on the central supervisory control subsystem S2 side is sent to the local supervisory control computer 101 by the keyboard / mouse data transmitter 139 for each individual operation. The cursor displayed by the local supervisory control computer 101 is moved in response to the notification.

On the other hand, in this reference example , the result of cursor operation by the mouse 137 on the central supervisory control subsystem S2 side is that when the predetermined notification condition set in advance is satisfied, the cursor movement target position at that time is By being notified to the image processing computer 301 of the local monitoring control subsystem S1, the cursor displayed on the local monitoring control computer 101 is moved to the cursor movement target position through a control command from the image processing computer 301.

  Here, as a predetermined notification condition for notifying the cursor movement target position, for example, when the cursor movement stop time is equal to or longer than a predetermined reference stop time, the cursor position at that time is set as the cursor movement target. It may be possible to notify the position. In this case, the reference stop time can be set as appropriate. However, from the viewpoint of realizing a cursor operation without a driver's uncomfortable feeling, for example, it may be about 0.5 seconds.

In this reference example , the cursor position detection / transmission program 1301 makes a determination based on such a predetermined notification condition, and when it is determined to notify, the cursor position at that time is detected as the cursor movement target position. The cursor movement target position data indicating the cursor movement target position is notified to the cursor position data receiving program 1302 of the local monitoring control subsystem S1. In this case, the cursor position data reception program 1302 notifies the cursor position control program 1303 of the received cursor movement target position data.

  When the cursor position control program 1303 receives notification of the cursor movement target position from the cursor position data reception program 1302, the cursor movement target position data and the current cursor position data obtained from the cursor position detection program 1101. Compare position with.

  As a result of this position comparison, if the cursor movement target position is different from the current cursor position, the cursor position control program 1303 generates a control command for moving the cursor from the current cursor position to the cursor movement target position, By controlling the on-site monitoring control computer 101 through the keyboard / mouse data receiving device 110, the cursor displayed on the on-site monitoring control computer 101 is moved to the cursor movement target position.

  When a cursor movement target position notification is received from the cursor position data reception program 1302, the cursor position is temporarily moved to the origin on the screen, that is, the (0, 0) point, instead of the processing of the cursor position control program 1303. And a method of moving from the position to the target position is also conceivable. In this case, since the determination of the current position of the cursor becomes unnecessary, the configuration is simplified. In order to move the cursor to the origin on the screen, the cursor may be moved unconditionally from the current position by “−Xmax” in the horizontal direction and “−Ymax” in the vertical direction. Here, “−Xmax” and “−Ymax” indicate the maximum widths in the horizontal and vertical directions of the screen, respectively.

As described above, in this reference example , when the cursor operation result on the central monitoring control subsystem S2 side satisfies the predetermined notification condition, the cursor movement target position is determined and notified to the local monitoring control subsystem S1 side. And moving the cursor. In this method, the continuous operation result of the cursor on the screen displayed on the monitor device 134 of the central monitoring control computer 131 is directly reflected as the continuous operation of the cursor displayed on the local monitoring control computer 101. Never happen.

  This scheme can also be rephrased as follows. That is, on the central supervisory control subsystem S2 side, a “temporary cursor” for operation is displayed and operated on the screen of the local supervisory control computer 101 displayed on the monitor device 134 of the central supervisory control computer 131. When the operation result satisfies a predetermined notification condition, the cursor movement target position is determined, and the cursor actually displayed on the monitor device 131 of the on-site monitoring control computer 101 is moved to the cursor movement target position. .

In this reference example , it is possible to notify the cursor movement target position at an appropriate timing by appropriately setting a predetermined notification condition. As described above, for example, by setting “when the cursor movement stop time reaches 0.5 seconds” as a predetermined notification condition, even if a transmission delay occurs in the network 120, the central monitoring control subsystem The operator of S2 can perform the operation of moving the “temporary cursor” on the local supervisory control computer screen without a sense of incongruity.

[effect]
According to the eleventh reference example as described above, in addition to the same effects as those of the first embodiment, the following effects can be further obtained.

In other words, in this reference example , a temporary cursor is displayed and operated on the central supervisory control subsystem side, and when the cursor movement target position is determined based on a predetermined notification condition, the local supervisory control computer actually displays it. By moving the cursor, the operator of the central supervisory control subsystem can perform the operation for moving the cursor on the local supervisory control computer screen without a sense of incompatibility even when a network with a transmission delay is used.

  Therefore, even when a network with transmission delay is used, a high-performance, low-cost remote monitoring and control system with excellent display response and operability for cursor movement on the local monitoring and control computer screen in the central monitoring and control subsystem. That method can be provided.

[ Twelfth Reference Example ]
[Constitution]
FIG. 25 is a block diagram showing a configuration of a remote monitoring control system according to the twelfth reference example . As shown in FIG. 25, the remote monitoring control system of the present reference example has the configuration of the first remote monitoring control system shown in FIG. 1 and the alarm type determination / data transmission apparatus 201 of the local monitoring control subsystem S1. Instead, the alarm sound waveform data transmission device 1401 is incorporated, and the alarm sound waveform data instead of the alarm type data collection program 202 and the alarm type data editing program 203 is added to the central monitoring control computer 131 of the central monitoring control subsystem S2. A collection program 1402 is incorporated.

  Here, the alarm sound waveform data transmission device 1401 has a function of digitizing an analog alarm sound signal and transmitting it as alarm sound data. The alarm sound waveform data collection program 1402 has a function of receiving alarm sound data and notifying the alarm ringing program 204.

[Action]
In the twelfth reference example having the above-described configuration, the basic operation is the same as that of the first embodiment, but with the change in the configuration described above, the operation regarding the processing of the alarm sound is as follows. Different.

  First, in the on-site monitoring control subsystem S1, the analog type alarm sound signal ringed by the on-site monitoring control computer 101 is subjected to digitization processing by the alarm sound waveform data transmission device 1401, thereby indicating the alarm sound waveform. It becomes digital signal data. The alarm sound waveform data of the digital signal is notified to the alarm sound waveform data collecting program 1402 of the central monitoring control computer 131 of the central monitoring control subsystem S2 via the network 120, and further notified to the alarm sounding program 204. . The alarm sounding program 204 converts the alarm sound waveform data of the digital signal into an analog signal similar to the original alarm sound signal, and the alarm sounding device 205 is similar to the alarm sound generated in the local monitoring control computer 101. Sound an alarm sound.

[effect]
According to the twelfth reference example having the above-described configuration, the alarm sound similar to the alarm sound generated in the on-site monitoring control computer can be sounded on the central monitoring control subsystem side. The same effect as the form can be obtained. In other words, when equipment abnormalities occur simultaneously in a plurality of monitored and controlled equipment, all the local computers are classified according to the alarm ringing information that is output when equipment abnormalities are detected, particularly major faults, minor faults, and other importance levels. The alarm information can be easily and quickly grasped by the operator of the central supervisory control subsystem.

In addition, the alarm sound processing method in this reference example is the digitized alarm sound generated by the on-site supervisory control computer and sent to the central supervisory control subsystem as it is. This is a method of sounding an alarm sound similar to the alarm sound generated by a supervisory control computer. According to this method, the operator of the central supervisory control subsystem can quickly and easily acquire the alarm information to be confirmed from the alarm sound similar to the local alarm sound.

  Further, in such an alarm sound processing method, the process on the local monitoring control subsystem side is an extremely simple process of digitizing and transmitting the alarm sound, and the central monitoring control subsystem side The process is an extremely simple process in which a digital signal is received, an analog process is performed, and a sound is generated. Therefore, the configuration for realizing this method can be realized very simply and inexpensively on both the local supervisory control subsystem side and the central supervisory control subsystem side.

In particular, the alarm sound waveform data transmission device used on the local monitoring and control subsystem side of the present reference example can be realized more simply and inexpensively than the alarm type determination / data transmission device used in the first embodiment. Therefore, the configuration of the on-site monitoring control subsystem can be realized easily and inexpensively. As a result, a great effect can be obtained in the simplification of the configuration and the cost reduction of the entire system in proportion to the number of the monitoring control target equipment and the number of the local monitoring control subsystems.

Therefore, according to this reference example , even when equipment abnormalities occur simultaneously in a plurality of equipment to be monitored and controlled, the central supervisory control subsystem is used to alert all of the equipment abnormalities and their levels by sounding an alarm sound similar to the local site. Provide a high-performance, low-cost remote monitoring and control system and method that can be easily and quickly grasped by the operator, can reduce the network load, and can be realized with a simpler and less expensive configuration. Can do.

[ 13th Reference Example ]
[Constitution]
FIG. 26 is a block diagram illustrating a configuration of a remote monitoring control system according to the thirteenth reference example . As shown in FIG. 26, in the remote monitoring control system of the present reference example , in the configuration of the thirteenth remote monitoring control system shown in FIG. 25, an alarm is sent to the central monitoring control computer 131 of the central monitoring control subsystem S2. Instead of the sound waveform data collection program 1402, an alarm sound waveform data collection / type determination program 1501 and an alarm type data editing program 203 are incorporated.

  Here, the alarm sound waveform data collection / type determination program 1501 has a function of determining the alarm type using the transmitted alarm sound waveform data. The alarm type data editing program 203 is the same as the program of the same name and the same sign in the first embodiment, and generates image data for displaying an alarm occurrence and its type with a specific symbol on the monitor device 134. It has a function to do.

[Action]
In the thirteenth reference example having the above-described configuration, the basic operation is the same as that of the twelfth reference example , but with the change in the above configuration, the operation related to the processing of the alarm sound is as follows. Different.

First, in the on-site monitoring control subsystem S1, the analog alarm sound signal ringed by the on-site monitoring control computer 101 is digitized by the alarm sound waveform data transmission device 1401 to become alarm sound waveform data of a digital signal. The processing up to being sent to the central supervisory control computer 131 of the central supervisory control subsystem S2 via 120 is the same as in the twelfth reference example .

In this reference example , the alarm sound waveform data of this digital signal is notified to the alarm sound waveform data collection / type determination program 1501 of the central monitoring control computer 131 of the central monitoring control subsystem S2, and the alarm type is determined. The alarm type data indicating the generation and type of the alarm obtained as a determination result is notified to the alarm type data editing program 203. On the other hand, the alarm sound waveform data of the digital signal used for the determination in the alarm sound waveform data collection / type determination program 1501 is directly notified to the alarm sound program 204.

  In this case, the alarm type data editing program 203 uses the received alarm type data to generate image data for displaying an alarm occurrence and its type with a specific symbol on the monitor device 134, and the image data display program 133. The specific symbol is displayed on the monitor device 134 through the screen. In the alarm sounding program 204, the alarm sound waveform data of the received digital signal is converted into an analog signal similar to the original alarm sound signal, and the alarm sounding device 205 generates an alarm generated in the local monitoring control computer 101. Sounds an alarm sound similar to the sound.

[effect]
According to the thirteenth reference example having the above-described configuration, the alarm sound similar to the alarm sound generated in the on-site monitoring control computer can be sounded on the central monitoring control subsystem side . The same effect as in the 12 reference examples can be obtained. In other words, when equipment abnormalities occur simultaneously in a plurality of monitored and controlled equipment, all the local computers are classified according to the alarm ringing information that is output when equipment abnormalities are detected, particularly major faults, minor faults, and other importance levels. The alarm information can be easily and quickly grasped by the operator of the central supervisory control subsystem.

In addition, the alarm sound processing method in this reference example is a digital transmission of the alarm sound generated by the local monitoring and control computer, and the central monitoring control subsystem converts it to an analog sound that is similar to the local alarm sound. Based on the system of the twelfth reference example for sounding, this system is combined with a system for determining the alarm type and displaying the alarm occurrence and its type with a specific symbol.

According to this method of the present reference example, similarly to the twelfth reference example, operators of the central monitoring and control subsystem can see quickly and easily alarm information from the alarm sound similar to local alarm sound it can. In addition, in this reference example , since a symbol corresponding to the alarm type can be displayed on the monitor screen, the operator can also check the alarm information on the monitor screen. Further, the point that the operator can confirm the alarm information by both sounding the alarm and displaying the screen is the same as in the first embodiment.

Moreover, in the alarm sound processing system as described above, the processing on the local monitoring and control subsystem side is an extremely simple process in which the warning sound is digitized and transmitted. As in the twelfth reference example , the configuration for realizing this method can be realized extremely simply and inexpensively. Therefore, in the same way as the twelfth reference example , a great effect can be obtained in the simplification of the configuration and the cost reduction of the entire system in proportion to the number of monitoring control target facilities and the number of on-site monitoring control subsystems. .

In this reference example , the alarm sound processing on the central supervisory control subsystem side is performed in comparison with the twelfth reference example by the addition of the process for determining the alarm type and displaying the alarm information on the screen. Therefore, the advantage of the simplification and cost reduction of the configuration on the central supervisory control subsystem side is lower than that of the twelfth reference example . However, when considering the actual operation of using one or a few central supervisory control subsystems for many local supervisory control subsystems, the simplification and cost reduction of the local supervisory control subsystem This does not impair the effects of simplification and cost reduction of the overall system configuration.

Therefore, according to this reference example , even when equipment abnormalities occur simultaneously in a plurality of equipment to be monitored and controlled, all of the equipment abnormalities and their levels can be detected by sounding an alarm sound similar to the site and displaying the alarm type on the screen. A high-performance, low-cost remote monitoring and control system that allows operators of the central monitoring and control subsystem to easily and quickly grasp the network load, and that can be realized with a simpler and less expensive configuration. That method can be provided.

[Modification]
In the thirteenth reference example , the case where the alarm sound waveform data of the digital signal is converted into an analog signal has been described as alarm sound processing on the central monitoring control subsystem side, as in the twelfth reference example. As a modification, as in the first embodiment, an alarm sound corresponding to the alarm type may be generated using alarm type data indicating the generation and type of the alarm.

[Other Embodiments]
It should be noted that the present invention is not limited to the above-described embodiments, and various other variations can be implemented within the scope of the present invention. First, the system configuration shown in the drawings is merely an example, and a specific configuration can be selected as appropriate.

1 is a block diagram showing a configuration of a remote monitoring control system according to a first embodiment of the present invention. 1 is a block diagram showing an example of a specific hardware configuration of a remote monitoring control system according to a first embodiment. The block diagram which shows the specific structural example of the alarm classification detection apparatus shown in FIG. The block diagram which shows the structure of the remote monitoring control system which concerns on the 1st reference example of this invention. The figure which shows an example of the processing content of the local monitoring control subsystem which concerns on a 1st reference example , and the processing content of a central monitoring control subsystem. The block diagram which shows the structure of the remote monitoring control system which concerns on the 2nd reference example of this invention. The figure which shows an example of the processing content of the local monitoring control subsystem which concerns on a 2nd reference example , and the processing content of a central monitoring control subsystem. The block diagram which shows the structure of the remote monitoring control system which concerns on the 3rd reference example of this invention. The figure which shows an example of the processing content of the image data change determination program in the field monitoring control subsystem concerning a 3rd reference example . The block diagram which shows the structure of the remote monitoring control system which concerns on the 4th reference example of this invention. 14 is a flowchart illustrating an example of an image data editing program for preventing flicker of an image processing computer according to a fourth reference example and an image data restoring program for preventing flicker of a central monitoring control computer. The figure explaining the flow of a process of the image data in the remote monitoring control system which concerns on a 4th reference example . The block diagram which shows the structure of the remote monitoring control system which concerns on the 5th reference example of this invention. The figure which shows an example of the processing content of the unnecessary image data edit program in the local monitoring control subsystem which concerns on a 5th reference example . The block diagram which shows the structure of the remote monitoring control system which concerns on the 6th reference example of this invention. The block diagram which shows the structure of the remote monitoring control system which concerns on the 7th reference example of this invention. The figure explaining the function structural example of the automatic operation program which concerns on a 7th reference example . The block diagram which shows the structure of the remote monitoring control system which concerns on the 8th reference example of this invention. The block diagram which shows the structure of the remote monitoring control system which concerns on the 9th reference example of this invention. The flowchart which shows an example of the cursor position detection program of the computer for field monitoring control concerning a 9th reference example , and the figure which shows an example of the cursor shape data file which this program has beforehand. The flowchart which shows an example of the cursor data reception program of the computer for central supervisory control which concerns on a 9th reference example . The block diagram which shows the structure of the remote monitoring control system which concerns on the 10th reference example of this invention. The flowchart which shows an example of the specific image position detection program of the local supervisory control computer which concerns on a 10th reference example , and the figure which shows an example of the specific image shape data file which this program has beforehand. The block diagram which shows the structure of the remote monitoring control system which concerns on the 11th reference example of this invention. The block diagram which shows the structure of the remote monitoring control system which concerns on the 12th reference example of this invention. The block diagram which shows the structure of the remote monitoring control system which concerns on the 13th reference example of this invention. The block diagram which shows an example of the conventional remote monitoring control system.

S1 ... Local monitoring control subsystem S2 ... Central monitoring control subsystem 100 ... Monitoring control target equipment 101 ... Local monitoring control computer 102 ... Equipment monitoring control program 103 ... Signal distributor 104 ... Monitor device 105 ... Alarm ringing device 106 ... Keyboard DESCRIPTION OF SYMBOLS 107 ... Mouse 108 ... Image signal collection device 109 ... Image data edit transmission device 110 ... Keyboard / mouse data reception device 111 ... Signal synthesizer 120 ... Network 131 ... Central supervisory control computer 132 ... Image data reception collection program 133 ... Image data Display program 134 ... Monitor device 135 ... Image data editing / transmitting device connection program 136 ... Keyboard 137 ... Mouse 138 ... Local / center side switching device 139 ... Keyboard / mouse data transmitting device 140 ... Button 201 ... Alarm type determination / data transmission device 202 ... Alarm type data collection program 203 ... Alarm type data editing program 204 ... Alarm ringing program 205 ... Alarm ringing device 301 ... Image processing computer 302 ... Image data editing / transmission program 303 ... Message image data extraction program 304 ... Transmission program 305 ... Message image data reception program 401 ... Message image data extraction / conversion program 402 ... Message character data reception program 501 ... Image processing computer 502 ... Image data change determination program 503 ... Image data transmission program 601 ... Image processing computer 602 ... Flicker countermeasure Image data editing program 603 ... Flicker countermeasure image data transmission program 604 ... Flicker countermeasure image data restoration program 701 ... Image processing computer 702 ... Unnecessary image Data editing program 703 ... Image data transmission program 801 ... Monitor camera 802 ... Camera image data transmission device 803 ... Image signal collection unit 804 ... Image data editing and transmission unit 901 ... Automatic operation program 1001 ... Keyboard / mouse data reception control device 1002 ... Signal Switch 1003 ... Changeover switch 1004 ... Keyboard / mouse data transmission control device 1005 ... Changeover switch 1101 ... Cursor position detection program 1102 ... Cursor data reception program 1201 ... Specific image position detection program 1202 ... Specific image data reception program 1301 ... Cursor position detection Transmission program 1302 Cursor position data reception program 1303 Cursor position control program 1401 Alarm sound waveform data transmission device 1402 Alarm sound waveform data collection Collection program 1501 ... Alarm sound waveform data collection / type determination program

Claims (2)

Over the network
As a part that operates on the basis of the signal output from the on-site monitoring control processing unit, the on-site monitoring control processing unit that takes in the equipment state of the monitoring control target equipment and outputs a signal indicating the state of the equipment and the occurrence of abnormality, On-site monitoring and control monitoring unit that displays image data indicating the state of equipment and the occurrence of an abnormality, an alarm ringing unit that sounds an alarm, and data for transmission indicating the state of equipment and the occurrence of an abnormality are generated and transmitted via the network A local monitoring and control subsystem with a data transmission unit,
A central supervisory control processing unit that receives and processes data from the local supervisory control subsystem transmitted via the network, and a central supervisory control monitor unit that displays image data indicating the processing results of the central supervisory control processor In a remote monitoring control system that connects two types of subsystems called a central monitoring control subsystem with
The on-site monitoring control processing unit is configured to output an alarm ringing signal of a type corresponding to the importance of equipment abnormality to the alarm ringing unit,
The data transmission unit is
Alarm type determination / data transmission for collecting alarm ringing signals output from the on-site monitoring control processing unit and determining its type, generating alarm type data indicating the occurrence of the alarm and its type, and transmitting the data via the network Part
The central supervisory control subsystem is
It has an alarm sounding part that sounds an alarm,
The central supervisory control processing unit
Receiving alarm type data from the local monitoring and control subsystem transmitted via the network, causing the alarm of the type indicated in the alarm type data to be sounded by the alarm sounding unit of the own subsystem, A remote monitoring control system comprising an alarm type data sounding / displaying control unit for displaying image data indicating a type on the central monitoring control monitoring unit. Over the network
As a part that operates on the basis of the signal output from the on-site monitoring control processing unit, the on-site monitoring control processing unit that takes in the equipment state of the monitoring control target equipment and outputs a signal indicating the state of the equipment and the occurrence of abnormality, On-site monitoring and control monitoring unit that displays image data indicating the state of equipment and the occurrence of an abnormality, an alarm ringing unit that sounds an alarm, and data for transmission indicating the state of equipment and the occurrence of an abnormality are generated and transmitted via the network A local monitoring and control subsystem with a data transmission unit,
A central supervisory control processing unit that receives and processes data from the local supervisory control subsystem transmitted via the network, and a central supervisory control monitor unit that displays image data indicating the processing results of the central supervisory control processor In a remote monitoring control method for monitoring and controlling the equipment to be monitored and controlled by connecting two types of subsystems called a central monitoring control subsystem with
The on-site monitoring control processing unit is configured to output an alarm ringing signal of a type corresponding to the importance of equipment abnormality to the alarm ringing unit,
The data transmission unit collects alarm ringing signals output from the on-site monitoring control processing unit, determines the type thereof, generates alarm type data indicating the occurrence of the alarm and the type thereof, and transmits the generated data via the network Process
The central supervisory control subsystem has an alarm sounding unit for sounding an alarm,
The central monitoring control processing unit receives the alarm type data from the local monitoring control subsystem transmitted via the network, and the type of alarm indicated by the alarm type data is received by the alarm sounding unit of the own subsystem. A remote monitoring control method characterized by performing a process of causing the central monitoring control monitor section to display image data indicating the occurrence of an alarm and the type thereof while sounding.