KR20000060988A - Remote inspecting system for automatically checking abnormal operation - Google Patents

Abstract

PURPOSE: A remote gauge examination method is provided to inform a user or a manager that the gauge examination of a meter is abnormal. CONSTITUTION: In a remote gauge examination method, a limited value(K) according to each meter is set by a user(100). Whether a "set" mode setting signal is provided from a controller is judged(102). If not, a normal gauge examination operation is performed(104). If so, a current mode is changed into an abnormal gauge examination detecting mode. Whether a pulse signal of each meter is inputted is checked(106). If so, a gauge examination count of a corresponding meter is increased by "1"(108). Whether the count value is larger than the limited value(K) is checked(110). If not, the steps(106-110) are iterated. If so, an abnormal signal indicative of abnormal information of the gauge examination is generated, and is sent to the controller(112).

Description

REMOTE INSPECTING SYSTEM FOR AUTOMATICALLY CHECKING ABNORMAL OPERATION}

The present invention is a remote meter reading system that provides a security function and meter reading function, the reliability of the remote meter reading and telling the user in advance to find a meter reading abnormality when using electricity, gas, hot water, water, etc. in the home or office The present invention relates to a remote meter reading system with an abnormal automatic checking function.

The configuration of the remote meter reading system will be described with reference to FIGS. 1A and 1B. Figure 1a, 1b is a schematic block diagram for explaining a general remote metering system, Figure 1a is a schematic overall configuration of the remote metering system, Figure 1b is a detailed view between the remote metering terminal and each meter in Figure 1a to be.

Conventional remote meter reading system is divided into a device for each generation and a device for each generation unit, as shown in Figure 1a, as a device for each generation as a remote meter (40-1 to 40-n, 42-1 to 42n ... 44-1 to 44-n) and a remote reader terminal (hereinafter referred to as SIU) (30-1, 30-2 ... 30-n). The unit for each household unit consists of the central control unit 20 and the meter reading computer 10, which are installed in a management room of a certain number of household units. Each generation of remote meter reading terminal (SIU) (30-1, 30-2 ... 30-n) is connected to the central control unit 20 through a dedicated line or a public line to gather their information, the central control The device 20 is connected to the meter reading computer 10.

Remote meters (40-1 to 40-n, 42-1 to 42n) connected to the lower part of the SIUs (30-1, 30-2 ... 30-n, hereinafter 30-1 will be described) installed by generation. 44-1 to 44-n, the electric system 40-1, the gas system 40-2, the hot water system 40-3, the water system 40-4, as shown in FIG. And a calorimeter 40-5. These meters output one electrical pulse per preset unit usage. The SIU 30-1 counts the electrical pulses output from the meter cumulatively and stores them as meter reading data. The accumulated count value coincides with the meter value of the meter.

The central control unit (hereinafter referred to as CM) 20 receives meter data from the generation-specific SIU periodically or frequently and stores it therein, and refers to a local remote inspection computer (hereinafter referred to as LRIC). To send. The LRIC 10 is installed in a management room that organizes and manages a certain number of generations in a set unit, and reads and stores meter reading data for each generation from the lower CM 20, or connects the paper to a paper through a connected printer (not shown). Output

However, the conventional remote meter reading system as described above has a difficulty in detecting malfunction of meter reading usage occurring at no load for each meter. That is, there are many limitations for SIU or the like to detect malfunction of the improver that occurs when the user is absent or the metering part is not used. For example, when the user is absent, it is often a malfunction to operate the water meter to increase the meter reading data because the water is continuously used. Nevertheless, it was not easy to detect the above malfunction. On the other hand, in order to make up for the above drawbacks, some systems compare meter reading data such as daily usage or monthly usage by a certain period, and when the difference reaches a certain value, it is regarded as an abnormality of the reading data. The method also requires a certain period of time for detection, and there is a limit in the accuracy of anomaly detection.

Accordingly, an object of the present invention is to provide a method for automatically confirming remote meter reading that detects an abnormal meter reading and informs the user or administrator of the meter reading.

In order to achieve the above object, the present invention is a remote metering system, the process of receiving a preset limit value of the meter reading data in the abnormal confirmation operation mode and the abnormal confirmation operation mode for each meter from the user or administrator, and the abnormal confirmation operation mode Performing the operation of checking the meter reading data of the corresponding meter and, if the count number of the checked meter data exceeds the set limit value of the meter, regards it as an abnormal meter reading.

1A and 1B are schematic block diagrams for explaining a general remote meter reading system.

Figure 2a, 2b is a schematic block diagram for explaining the automatic abnormality remote meter reading system according to an embodiment of the present invention

3 is an exemplary view of an output pulse waveform of a meter

4 is an operation flowchart of an automatic error checking process of a remote meter reading terminal according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, specific details such as specific components are shown, which are provided to help a more general understanding of the present invention, and it is understood that these specific details may be changed or changed within the scope of the present invention. It is self-evident to those of ordinary knowledge in Esau.

2A and 2B are schematic block diagrams for explaining an abnormal automatic confirmation remote meter reading system according to an embodiment of the present invention. FIG. 2A is a schematic overall configuration diagram of a remote meter reading system, and FIG. Detailed diagram between the remote meter reading terminal and each metering device. First, in an embodiment of the present invention, when an abnormality is found in a meter reading, a security system is connected to a conventional remote meter reading system in order to alert a user and an administrator. This will be described in detail with reference to FIGS. 2A and 2B.

The system configuration of the present invention includes a plurality of methods between a center machine (CM) 60 of a remote meter reading system and a subscriber interface unit (SIU) 30-1 ... 30-n. Controllers (70-1, 70-2 ... 70-n) are connected to each controller, and each controller has a plurality of SIUs, a block card reader (BCR) (80-1 ... 80-n), and a card reader. (82-1 ... 82-n) and the printer 84-1 ... 84-n take a structure. In addition, a plurality of detectors (86-1 ... 86-n) are directly connected to each controller, and the detectors are installed in a detection zone to transmit a signal for abnormal detection to the controller.

In the above, each BCR is connected to the controller in the case of a large security zone, and independently operates the security of a specific zone through a plurality of detectors (90-1 ... 90-n, 94-1 ... 94-n). Device. In addition, each card reader is a device that transmits the accessor information to the connected controller, and each printer records on the paper along with the year, month, day, hour, and minute on the status change of each device under the control of the connected controller. , The device to output.

The controllers 70-1, 70-2 ... 70-n receive and store security data from peripheral devices such as BCR, card reader and sensors, and the local remote metering computer (LRIC: Local Remote) through the CM 60. Inspection Computer (50). In addition, the meter reading data from the SIU is received and transmitted to the LRIC 50 as well. As described above, the controllers 70-1, 70-2 ... 70-n simultaneously perform the meter reading function and the security function. The CM 60 receives the guard information and metering information from the lower controllers 70-1, 70-2 ... 70-n through a transmission line or a public line of KT (Korea Telecom), and stores and converts the information. Output to printer or send to LRIC 50.

Referring to FIG. 2B, the SIUs 30-1, 30-2 ... 30-n, hereinafter 30-1 are described as examples, have a plurality of connection ports, and thus, a plurality of remote meter 40-1. 40-n, 42-1 to 42n ... 44-1 to 44-n). The meter used includes an electric meter (power meter) 40-1, a gas meter 40-2, a hot water meter 40-3, a water meter 40-4, a calorimeter 40-5, and the like. Outputs one electrical pulse per preset unit usage. The waveform of the pulse is as shown in FIG.

3 is a diagram illustrating an output pulse waveform of a meter. The period and activation period of the pulse as shown in FIG. 3 vary depending on the size of the load, but as the usage amount increases, the sections “T” and “t” are shortened. The meter for remote meter outputs 1 pulse per unit usage due to its characteristics. As shown in FIG. 3, the meter is activated by the "T" section, and the SIU 30-1 recognizes the "T" section as one pulse. Count. The activation interval "T" and the period "t" change according to the type of the meter and the load usage. For example, the unit usage per pulse per KS standard household meter is as follows. The electric system is 1 pulse per 1 Kwh, and the gas system, water system, and calorimeter have the characteristic of outputting 1 pulse per 10 liters. Therefore, the pulse count value of the SIU means the usage of the meter, and eventually, the LRIC 50 reads the value and checks the usage of the meter, and stores the data to make a database.

According to the feature of the present invention, the remote meter reading system configured as described above is regarded as an abnormal operation when the count value of the meter reading data of each meter is more than a preset limit under the so-called "abnormal confirmation operation mode". The abnormality checking operation mode is a mode that is set at no load for each meter, such as when the user is absent or when the metering part is not used, and may be set by the user. In addition, the threshold value may be preset by the system administrator or set by the user, and is a limit value of the normal meter reading operation count of the corresponding meter under the abnormality checking operation mode.

That is, the abnormality checking operation mode means that there is little use of the meter because the user is absent or sleeping. Therefore, the use amount of water, hot water, gas, electricity and the like does not exceed "0", minute amount, or "K". Here, "K" is a count limit value at no load of each meter that can be set by the user, and is an element for providing accuracy of anomaly detection in case the corresponding meter can be used under the abnormality checking operation mode.

In order to set the abnormality checking operation mode as described above and the setting of the threshold value, the SIU is additionally equipped with a display window for displaying a key input module, an input value, and an LCD module. When the abnormal meter is confirmed from the meter, the SIU transmits the meter abnormal information to the controller, which is finally provided to the LRIC 50 so that the meter manager can recognize the abnormality. In addition, the SIU outputs a display message for notifying occurrence of abnormalities on its own LCD.

Meanwhile, in one embodiment of the present invention, since the controller of the security system is connected to the remote meter reading system, the abnormality checking operation mode may operate in the so-called "set" mode indicating the security operation mode of the security system. The " set " mode is to instruct the controller to command the zone guard to start at bedtime or at the desired time when the user is absent. Therefore, the SIU receives the "set" mode signal from the controller and performs a check operation on the abnormal operation of the corresponding refiner. Hereinafter, an operation of checking the meter reading abnormality according to the features of the present invention in the "set" mode of the security system as described above will be described with reference to FIG.

4 is a flowchart illustrating an abnormal automatic checking process of a remote meter reading terminal (SIU) according to an embodiment of the present invention. First, in step 100, the limit value "K" is preset and set for each meter by the user. This limit "K" may initially be set to "0". Thereafter, the operation of the SIU is divided into an abnormal meter reading detection mode and a normal meter reading mode according to whether the mode is set. That is, the SIU checks whether the "set" mode setting signal is provided from the controller in step 102. If the SIU does not provide the "set" mode setting signal, the SIU proceeds to step 104 and operates in the normal meter reading operation mode. If the "set" mode setting signal is provided, the controller 100 switches to the abnormal meter reading detection mode and then proceeds to step 106.

In step 106, the pulse input of each meter is checked, and if there is a pulse input, the flow proceeds to step 108 and the meter reading count of the corresponding meter is increased by one. Thereafter, if the count value is not greater than the "K" value compared with the preset threshold value "K" in step 110, the process proceeds to step 106 and the process is repeated, and the count value is greater than the "K" value. Then proceeds to step 112. In step 112, an error signal is generated and the meter manager sends information on the meter reading to the controller for confirmation by the meter reading manager. Also, a message indicating a meter reading is displayed on its own LCD.

By the above configuration, the abnormal automatic confirmation meter reading operation according to the features of the present invention is performed.

Meanwhile, in the above description of the present invention, specific embodiments have been described, but various modifications may be made without departing from the scope of the present invention. In particular, the SIU may further include a speaker or the like to configure an alarm sound when an error occurs.

Therefore, the scope of the present invention should not be defined by the described embodiments, but by the equivalents of the claims and claims.

As described above, the present invention checks the meter reading data of the meter while the user is absent or unused to the meter reading system which provides only the meter reading information, and when the count number of the meter data exceeds a preset limit, It can be regarded as an alarm signal from the control room meter computer or its own remote meter terminal display window to provide the user with the reliability of the remote meter system.

Claims (4)

In the remote meter reading method for automatically checking the abnormality of the remote meter reading system, Receiving a count limit value of the meter reading data in advance from the user or the administrator in the error checking operation mode and the error checking operation mode for each meter; Checking meter reading data for each meter under the abnormality checking operation mode; When the count of the checked meter reading data exceeds the set limit value of the meter, the process of considering this as a meter reading or more; Remote meter reading method comprising the step of displaying the meter reading error to the user or administrator. The remote meter reading method of claim 1, wherein the displaying of the meter reading abnormality comprises outputting a message indicating a reading abnormality to a display window of a remote reading terminal of a device for each generation of the remote meter reading system. In the remote meter reading method for automatically checking the abnormality of the remote meter reading system associated with the security system, Receiving a preset value of the count number of reading data of the meter at no load of the meter for each meter; Checking the meter reading data for each meter in the guard operation execution mode of the guard system; When the number of counts of the checked meter reading data exceeds the set limit value of the meter, the process of considering this as an abnormal meter reading, Remote meter reading method comprising the step of displaying the meter reading error to the user or administrator. The method of claim 3, wherein the displaying of the meter reading abnormality comprises outputting a message indicating a reading abnormality to a display window of a remote reading terminal of the generation-specific device of the remote reading system.