JP3396614B2 - Data transmission / reception method and apparatus in centralized monitoring system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided in a centralized monitoring center for performing automatic meter reading and the like, receives notification data including emergency information from a terminal device provided in each meter for meter reading, and receives data from a host computer. The present invention relates to a data transmitting / receiving method and a device thereof in a centralized monitoring system for transmitting a command to a terminal device.

[0002]

2. Description of the Related Art In a centralized monitoring system for automatic meter reading of gas or water using a telephone line, a centralized monitoring center 100, as shown in FIG.
1. RS-232C cable 1 to this data transceiver 101
It has a data terminal device 103 such as a host computer connected via 02. The centralized monitoring center 100 includes telephone lines 104a to 104n and a public telephone line network 10.
5. Terminal devices 107a to 107n such as gas meters are connected via telephone lines 106a to 106n.

The centralized monitoring center 100 is called a facility on the center side and is installed in a gas security company or the like, and performs centralized monitoring such as automatic meter reading and security for terminal devices. For this reason, the data transmission / reception device 101 in the centralized monitoring center 100 receives gas meter reading information and gas leak detection information of a plurality of terminal devices, and sends a command from the data terminal device 103 to the terminal device.

Next, the operation of the data transmission / reception device 101 will be described. First, when each terminal device detects a gas leak,
Each terminal device transmits notification data including a user ID, such as gas leak detection information, to the central monitoring center via a telephone line or a public telephone line network in a predetermined telegram.

Then, the data transmitting / receiving device 101 in the centralized monitoring center 100 receives the report data such as the gas leak detection information from the terminal device by a telegram, and the received telegram is RS-232.
It was transferred to the data terminal device 103 via the C cable 102.

On the other hand, the data terminal device 103 has a customer master file (not shown) in which customer information for each terminal device is written, and this customer master file contains
User ID, name, emergency contact TEL number NO. 1, N
O. 2 and information such as address are written.

The data terminal device 103 searches the customer master file having the user ID in the received electronic message, displays the customer information of the searched customer master file on the monitor, confirms the content, and makes an emergency call. Was there.

[0008]

However, in the conventional centralized monitoring system, for example, when the data terminal device 103 is stopped for some reason (system down) or when the logoff is caused by maintenance, the Even if a message including report data from the terminal device was input to the data terminal device 103 during the period, the customer master file could not be opened.

Therefore, the customer information in the customer master file cannot be confirmed, and in the case of an emergency call, the response to the emergency call is delayed and the reliability of the centralized monitoring system deteriorates. .

The present invention provides a data transmission / reception method and device in a centralized monitoring system capable of promptly dealing with report data from a terminal device even when the data terminal device is stopped or logged off due to maintenance. Is an issue.

[0011]

The present invention adopts the following means in order to solve the above problems. According to the invention of claim 1, a telegram containing the customer identification information and the notification data received from each of the plurality of terminal devices is stored for each customer by storing the customer identification information and the plurality of customer information via a communication path. In the data transmission / reception method in the centralized monitoring system, the data is transmitted to the data terminal device having the provided customer information unit, and the data terminal device is searched for the customer information unit corresponding to the customer identification information in the message. Some customer information is extracted from the plurality of customer information stored in the customer information section for each information section, and some customer information and the customer identification information are stored in the simple information section provided for each customer. Storing step and communication abnormality determining step of determining communication abnormality when the data terminal device is stopped or when communication with the data terminal device becomes impossible via the communication path An information retrieval step of retrieving the simple information section corresponding to the customer identification information in the received message when the message is determined to be abnormal in the communication abnormality determination step and a message is received from the terminal device; A display step of displaying the customer identification information and the part of the customer information stored in the simple information section searched in the search step.

According to the present invention, a part of the customer information is extracted from a plurality of customer information stored in the customer information section for each customer information section, and a part of the customer information and the customer identification information are extracted for each customer. The data is stored in the provided simple information unit, and it is determined that the communication is abnormal when the data terminal device stops or when communication with the data terminal device becomes impossible via the communication path.

Then, when it is determined that the communication is abnormal and a message is received from the terminal device, when the simple information section corresponding to the customer identification information in the received message is searched, it is stored in the searched simple information section. Since the customer identification information and the part of the customer information are displayed, it is possible to inform the person in charge of the centralized monitoring center of the customer information.

Therefore, even if the data terminal device is down, the emergency call can be dealt with promptly, and the reliability of the centralized monitoring system can be greatly improved.

The invention of claim 2 further combines the customer identification information and the part of the customer information stored in the simple information section retrieved in the information retrieval step with the notification data in the received electronic message. It is characterized by including a notification message generation step of creating an emergency notification message.

According to the present invention, an emergency call message is created by combining the customer identification information and a part of the customer information stored in the retrieved simple information section with the report data in the received message, so that an emergency call can be made. You can make an emergency call by telegram.

Further, according to the invention of claim 3, a telegram containing the customer identification information and the notification data received from each of the plurality of terminal devices is provided with the customer identification information and the plurality of customer information via a communication path. And a data transmission / reception device in a centralized monitoring system for transmitting to a data terminal device provided with a customer information unit provided for each customer, and causing the data terminal device to retrieve the customer information unit corresponding to the customer identification information in the message. In, a part of the customer information is extracted from the plurality of customer information provided for each customer and stored in the customer information section for each customer information section, and a part of the customer information and the customer identification information are extracted. A communication abnormality determination that determines a communication abnormality when the simplified information unit to be stored and the data terminal device is stopped or when communication with the data terminal device cannot be performed via the communication path And an information retrieval unit that retrieves the simple information unit corresponding to the customer identification information in the received message when the message is determined to be abnormal by the communication abnormality determination unit and a message is received from the terminal device. It is characterized by comprising a display section for displaying the customer identification information stored in the simple information section retrieved by the information retrieval section and the partial customer information.

Further, the invention of claim 4 further includes the customer identification information and the partial customer information stored in the simple information section searched by the information search section, and notification data in a received electronic message. It is characterized by comprising a notification message generation unit for generating an emergency notification message combining the above.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a data transmitting / receiving method and an apparatus thereof in a centralized monitoring system of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration block diagram of a data transmitting / receiving apparatus in the centralized monitoring system of the embodiment.

The centralized monitoring system is, for example, a gas centralized monitoring system for automatically measuring the gas, and the centralized monitoring center includes the data transmitting / receiving device 1 and the data transmitting / receiving device 1.
It has a data terminal device 3 connected via an RS-232C cable 2.

In the centralized monitoring system shown in FIG.
Although only the centralized monitoring center is shown, the configuration other than the centralized monitoring center, such as a terminal device and a telephone line, is the same as the configuration shown in FIG.

The data transmission / reception device 1 performs automatic dial transmission and connects to the terminal devices 107a to 107n via the telephone lines 104a to 104n, the public telephone line network 105, and the telephone lines 106a to 106n, and the terminal devices 107a to 107a.
7n request for gas meter reading information, telephone lines 104a to 104n from the terminal devices 107a to 107n.
n to control a plurality of incoming calls, and terminal devices 107a to 10a-10
Receive the notification data from 7n.

The terminal devices 107a to 107n are gas meters, and report data of abnormal information such as gas meter reading value information and gas leak detection information by telephone transmission from the telephone line 106a to 107n.
106n, public telephone line network 105, telephone lines 104a-1
The data is transmitted to the data transmitting / receiving apparatus 1 via 04n.

As shown in FIG. 1, the data transmission / reception device 1 has a data terminal device (FEP) 3 such as a host computer via an RS-232C cable 2 as a serial communication path.
Are connected.

The data terminal device 3 stores the first to nth customer master files 8 (8a to 8n) as customer information sections provided corresponding to the plurality of terminal devices 107a to 107n in a memory (not shown). Have.

FIG. 2 shows customer information of each customer master file. The customer information of the customer master file is, as shown in FIG. 2, (1) a user ID for identifying the user,
(2) User's name, (3) Emergency contact TEL-No. 1, (4) Emergency contact TEL-No.
2. Information such as address.

The data transmission / reception device 1 includes a data terminal device 3
Sends and receives data such as report data to and from. The data transmission / reception device 1 has modem boards 11a to 11n provided corresponding to the plurality of terminal devices 107a to 107n, and a main boat 15 connected to these modem boards 11a to 11n via a bus 14.

On the modem board 11a, local lines (L1, L
2) is connected, and the modem board 11a performs data modulation and demodulation. The modem boards 11b to 11n are also configured in the same manner as the modem board 11a.

The main boat 15 includes a central processing unit (CP
U) 16, a memory 17 for storing received data, an LCD interface (LCD I / F) 19 for controlling input / output with a liquid crystal display element (LCD) 21 as a display unit, and a printer interface for controlling input / output with the printer 22. It has a (printer I / F) 20, an SIO 23, an RS-232C drive 24 that controls input / output between the CPU 16 and the data terminal device 3, and a 9-pin connector 25 including a D-SUB connector.

The memory 17 includes a plurality of terminal devices 107a ...
First as a simple information section provided corresponding to 107n
To the n-th simple master file 18 (18a to 18n)
Have. The simplified master files 18a-18n are the customer master files 8a-8 of the data terminal device 3.
It is created based on n. Here, each of the simple master files 18a to 18n is composed of information necessary for an emergency extracted from the customer information of the corresponding customer master file.

FIG. 3 shows the information of each simple master file. The information of the simple master file is as shown in FIG.
(1) User ID as customer identification information for identifying the user, (2) User's name, (3) Emergency contact TEL-No. 1 and these pieces of information are necessary in an emergency. FIG. 4 shows the data format of each simple master file.

FIG. 5 shows a message including the notification data sent from the terminal device to the data transmitting / receiving device. This message is composed of a notification content including notification data such as a user ID for identifying the user, gas meter reading information and gas leak detection information.

The CPU 16 has terminal devices 107a-107.
n to transfer the data received from the data terminal device 3 to the data terminal device 3 or to transfer the data from the data terminal device 3 to the terminal device 107a.
To 107n, and a transmission / reception control unit (not shown) that transfers the data stored in the memory 17 to the data terminal device 3 in response to a request from the data terminal device 3.

The CPU 16 detects the presence / absence of a normal operation signal indicating that the data terminal device 3 sent from the data terminal device 3 via the RS-232C cable 2 as a serial communication path is operating normally, A communication abnormality determination unit (not shown) that determines a communication abnormality when a normal operation signal is not detected is included.

When the data terminal device 3 is stopped (system down) or at the time of logoff due to maintenance (for maintenance such as backup of data to the hard disk, communication between the data transmission / reception device 1 and the data terminal device 3 is performed). The normal operation signal is not detected in the (unavailable state).

When the data terminal device 3 is down, or when it is determined that the communication is abnormal due to logoff due to maintenance, and the electronic message including the notification data is received from the terminal device, the CPU 16 receives the message. The user ID in the received message is the user I of the simple master file.
An information search unit (not shown) that determines whether or not the user ID in the received electronic message matches the user ID of the simple master file and determines a simple master file having the user ID is determined. Have.

The CPU 16 has a notification message generation unit (not shown) for creating an emergency notification message that combines the information of the simple master file searched by the information search unit and the received message.

FIG. 6 shows a notification message generated by the notification message generating section in the data transmitting / receiving device. As shown in FIG. 6, the emergency call message includes a user ID, a name, a telephone number, and the content of the call. The LCD 21 makes an emergency call by displaying the notification message generated by the notification message generating unit on the screen.

Further, the CPU 16 controls the terminal device 107a.
It has an emergency call determination unit (not shown) that determines whether the data received from ~ 107n is emergency call data. The emergency call data includes, for example, gas leak detection abnormality data, gas low pressure abnormality data, meter emergency cutoff data, battery abnormality data, and the like.

The printer 22 prints out the emergency notification data received from the terminal devices 107a to 107n when the data received by the emergency notification determining unit in the CPU 16 is determined to be the emergency notification data.

Further, the data transmitter / receiver 1 includes an input / output interface (I / O interface) 26, an FE.
P communication LED 27, alarm LED 28, 7 segment LE
It has a D29, a volume 30, an alarm reset SW 31, an external input / output unit 32, and a power supply unit 33.

The FEP communication LED 27 comprises a green light emitting diode and an orange light emitting diode. When transmitting data to the data terminal device 3, the green light emitting diode emits light,
When receiving data from the data terminal device 3, the orange light emitting diode emits light.

The alarm LED 28 is composed of a red light emitting diode, and emits light to warn of any abnormality when there is any abnormality. 7 segment LED29 is alarm LED
When 28 emits light, the content of the abnormality is displayed by a display code.

FIG. 7 shows the display contents of the 7-segment LED. As can be seen from FIG. 7, 7-segment LED 29
If the display code is displayed as, for example, "00", it is understood that the display content is normal operation.

If the display code is displayed, for example, as "91" on the 7-segment LED 29, it can be seen that the display content indicates that the modem board 11a is not installed or is out of order.

The alarm reset SW 31 has an alarm LED 28.
This is a switch for resetting the alarm by. The external input / output unit 32 outputs the data in the data transceiver 1 to the outside. The power supply unit 33 receives an AC power supply of 100 V, generates ± 12 V power supply and +5 V power supply, and supplies the power supply to each unit to operate each unit.

Next, the operation of the data transmitting / receiving apparatus of the embodiment configured as described above will be described with reference to the flowchart shown in FIG. First, the first customer master file 8a to the nth customer master file 8n as shown in FIG.
3, the first simple master file 18a to the nth simple master file 18n as shown in FIG. 3 are created in advance.

Next, when the terminal device 107a detects, for example, a gas leak, the terminal device 107a determines that the user I
D, the data transmission / reception device 1 through the telephone line with the message data (report content) including the gas leak detection information as a telegram shown in FIG.
Send to.

Then, in the data transmission / reception device 1, the modem board 11a receives a message including the notification data from the terminal device 107a (step S11), and the message is C
It is sent to the PU 16.

On the other hand, the communication abnormality judging section of the CPU 16 detects the presence / absence of a normal operation signal sent from the data terminal device 3 via the RS-232C cable 2, and detects the presence / absence of the normal operation signal. It is determined whether the data communication of is normal or abnormal (step S13).

Here, when the normal operation signal is detected and it is determined that the communication is normal, the received electronic message is transferred to the data terminal device 3 via the 9-pin connector 25, the RS-232C cable 2 and the like. To do. The data terminal device 3 searches the customer master file corresponding to the user ID in the received electronic message (step S15), and displays the customer information of the searched customer master file on the display unit (not shown) to make an emergency call. (Step S17).

On the other hand, in step S13, the CPU1
If the communication abnormality determination unit in 6 determines that the communication is abnormal, that is, if the data terminal device 3 is down, or if the maintenance is logged off, the CPU 1
The notification message generating unit 6 determines whether the user ID in the message including the notification data received from the terminal device 7a matches the user ID of the simple master file (step S19).

Further, when the user ID in the received message matches the user ID in the simple master file, the report message generating unit receives the information on the received message and the simple master file having the user ID in the received message. An emergency call message is created by combining and (step S21).

Next, the emergency call determination section in the CPU 16
It is determined whether the data received from the terminal device 107a is emergency call data (step S23). If the received data is not emergency notification data, the notification message generated by the notification message generating unit is displayed on the liquid crystal screen of the LCD 21 (step S25).

That is, the LCD 21 displays the user ID, name, telephone number, and report contents on the liquid crystal screen when the data terminal device 3 is down or when the logoff is performed due to maintenance.

On the other hand, in step S23, if the received data is emergency notification data, the printer 22
Prints out the emergency notification data received from the terminal device 107a (step S27).

As described above, according to the data transmission / reception device of the embodiment, when the data terminal device 3 is down for some reason or at the time of logoff due to maintenance, it corresponds to the user ID in the received message. Since a notification message combining the information of the simple master file and the information of the message is displayed on the liquid crystal screen of the LCD 21, it is possible to confirm the necessary information and notify the person in charge of the central monitoring center of the emergency information. .

Therefore, even if the data terminal device 3 is down, the emergency call can be dealt with promptly, and the reliability of the centralized monitoring system can be greatly improved.

Since the simple master file 18 provided in the data transmitting / receiving device 1 is a part of the customer information of the customer master file 8 provided in the data terminal device 3, the memory required for the simple master file 18 is required. The capacity is
It is less than the memory capacity required for the customer master file 8.

The present invention is not limited to the above-mentioned embodiment. In the embodiment, the gas centralized monitoring system has been described as an example, but the present invention is not limited to this, and the present invention may be applied to, for example, a water centralized monitoring system.

[0061]

According to the present invention, a part of customer information is extracted from a plurality of customer information stored in the customer information section for each customer information section, and a part of the customer information and the customer identification information are provided to the customer. The data is stored in a simple information section provided for each, and it is determined that communication is abnormal when the data terminal device stops or when communication with the data terminal device becomes impossible via the communication path.

When it is determined that the communication is abnormal and a message is received from the terminal device, the simple information section corresponding to the customer identification information in the received message is searched, and the simple information section is stored in the searched simple information section. Since the customer identification information and the part of the customer information are displayed, it is possible to inform the person in charge of the centralized monitoring center of the customer information.

Therefore, even if the data terminal device is down, the emergency call can be dealt with promptly, and the reliability of the centralized monitoring system can be greatly improved.

Further, since the emergency notification message is created by combining the customer identification information and a part of the customer information stored in the retrieved simple information section with the notification data in the received message, the emergency notification message is used to make an emergency call. It can be performed.

[Brief description of drawings]

FIG. 1 is a configuration block diagram of an embodiment of a data transmission / reception device in a centralized monitoring system of the present invention.

FIG. 2 is a diagram showing customer information in each customer master file.

FIG. 3 is a diagram showing information of each simple master file.

FIG. 4 is a diagram showing a data format of each simple master file.

FIG. 5 is a diagram showing a message including notification data sent from the terminal device to the data transmitting / receiving device.

FIG. 6 is a diagram showing a notification message generated by the data transmitting / receiving device.

FIG. 7 is a diagram showing display contents of a 7-segment LED.

FIG. 8 is a flowchart illustrating an operation of the data transmitting / receiving device according to the embodiment.

FIG. 9 is a configuration block diagram showing a conventional centralized monitoring system.

[Explanation of symbols]

1 Data transceiver 2 RS-232C cable 3 Data terminal equipment 8a to 8n 1st to nth customer master files 11a-11n modem board 14 bus 15 Main board 16 CPU 17 memory 18a to 18n First to nth simple master files 19 LCD I / F 20 Printer I / F 21 LCD 22 Printer 23 SIO 24 RS-232C drive 25 9-pin connector 26 I / O interface 27 FEP communication LED 28 Alarm LED 29 7-segment LED 30 volumes 31 Alarm reset switch 32 External input / output section 33 power supply 105 public telephone network 104a-104n, 106a-106n Telephone line 107a-107n terminal device

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Claims (4)

(57) [Claims] 1. A telegram containing customer identification information and notification data received from each terminal device of a plurality of terminal devices is provided for each customer by storing the customer identification information and the plurality of customer information via a communication path. A data transmission / reception method in a centralized monitoring system for transmitting to a data terminal device having a customer information unit, and causing the data terminal device to search for the customer information unit corresponding to the customer identification information in the message, Storing step of extracting a part of the customer information from the plurality of customer information stored in the customer information section for each and storing the part of the customer information and the customer identification information in a simple information section provided for each customer And a communication abnormality determination step of determining a communication abnormality when the data terminal device is stopped or when communication with the data terminal device becomes impossible via the communication path, An information search step of searching the simple information section corresponding to the customer identification information in the received message when the message is determined to be abnormal in the communication error determination step and a message is received from the terminal device; A step of displaying the customer identification information and the part of the customer information stored in the simplified information section retrieved in step, and a data transmitting / receiving method in a centralized monitoring system. 2. An emergency call message that combines the customer identification information and the part of the customer information stored in the simple information section retrieved in the information retrieval step with the report data in the received message. The method of transmitting / receiving data in a centralized monitoring system according to claim 1, further comprising a step of generating a report message. 3. A telegram containing customer identification information and notification data received from each terminal device of a plurality of terminal devices is provided for each customer having the customer identification information and the plurality of customer information via a communication path. A data transmission / reception device in a centralized monitoring system for transmitting to a data terminal device equipped with a customer information unit and searching the data terminal device for the customer information unit corresponding to the customer identification information in the message, And a simplified information section for extracting some customer information from the plurality of customer information stored in the customer information section for each customer information section and storing some customer information and the customer identification information, A communication abnormality determination unit that determines a communication abnormality when the data terminal device is stopped or when communication with the data terminal device cannot be performed via the communication path, and a communication abnormality determination unit When the section determines that there is a communication error and a message is received from the terminal device, an information search section that searches the simplified information section corresponding to the customer identification information in the received message, and an information search section that searches for the simplified information section. And a display unit for displaying the customer identification information and the partial customer information stored in the simple information unit, and a data transmitting / receiving apparatus in a centralized monitoring system. 4. An emergency call message that combines the customer identification information and the partial customer information stored in the simple information section retrieved by the information retrieval section with the report data in the received message. The data transmission / reception device in the centralized monitoring system according to claim 3, further comprising a notification message generation unit to be created.