JP3548242B2 - Automatic notification system - Google Patents

Description

[0001]
[Industrial applications]
The present invention is installed in a customer terminal, mainly a propane gas, water supply, a count value of an electronic meter such as electric power, a remaining amount alarm when the remaining amount of the propane gas cylinder is low, and a state of other sensors and the like. To a host computer of a center facility via a telephone line.
[0002]
[Prior art]
In an automatic notification system using a telegram-type meter, to communicate with a telegram-specific message, the telegram-specific communication message is stored in the automatic reporting device or the center side. In addition, a telegram meter corresponding to a telegram unique to the telegram meter must be connected. An example is a terminal network control device disclosed in Japanese Patent Application Laid-Open No. Hei 5-191523.
[0003]
[Problems to be solved by the invention]
When a plurality of electronic message meters are connected to the automatic notification device described in Japanese Patent Application Laid-Open No. 5-191523, the message format of the connected electronic message meters is registered in advance in the automatic notification device or the center. Unless a specific telegram meter is connected to a specific connection terminal, it is impossible to incorporate the telegram meter into the system.
[0004]
The present invention, such conventional problems as to eliminate, by determining processing the format of communication message telegram meter by center or an automatic call device, consideration of the type of model telegram meter to be connected to an automatic call device It is an object of the present invention to provide an automatic notification system that can be connected without being connected and that can construct a system with better installation workability.
[0005]
[Means for Solving the Problems]
The present invention has a function of communicating in a plurality of message formats for communicating with an electronic meter such as gas and water at the center in order to solve the problem, and directly in the electronic format of the electronic meter. A message communication means having a function of adding a mark signal and a space signal to the message so that communication is possible, and a function of removing a mark signal and a space signal of the message to be transmitted from the message meter to the center; and network control means for connecting the center Te, and transmission means for communicating with the center a telephone line, when from the center sequentially sends a message with a plurality of message formats for the telegram meter, to the transmitted message determine the presence or absence of a reply, performs control so as to determine the type of the relevant telegram meter, said transmission means and the message communication unit It was and control means for controlling the pre said network control means.
[0006]
[Action]
According to the present invention, by adopting the means, the format of the communication message of the message meter is automatically determined by the automatic notification device, so that connection can be made without considering the type of the message type meter connected to the automatic notification device, A system with better installation workability can be constructed.
[0007]
【Example】
FIG. 1 is an overall configuration diagram of an automatic notification system according to an embodiment of the present invention.
[0008]
Reference numeral 1 denotes an automatic notification device, which is connected to a center 6 via a communication line such as a telephone network, and to which electronic message meters 7a to 7c are connected.
[0009]
The automatic notification device 1 includes a network control means 5 for connecting to the center 6 via a communication line, a transmission means 3 such as a modem, and a mark signal in a message sent from the center 6 to the message meters 7a, 7b and 7c. And a space signal, and removes a mark signal and a space signal from the communication messages from the electronic message meters 7a, 7b, 7c, and switches connection of a plurality of electronic message meters 7a, 7b, 7c. And a control means 2 for controlling the transmission means 3, the message communication means 4, and the network control means 5.
[0010]
Further, the control unit 2 is a communication format of the message type meter propane gas "200 [BPS], data bits 5, no parity bit, 1 stop bit" format message and the power, the communication format for water message meter A message in the form of "300 [BPS], 7 data bits, no parity bit, 1 stop bit" is stored as data in the program code. Further, the configuration is such that the setting of the message format and the communication message can be added for the local message format unique to the manufacturer.
[0011]
Next, FIG. 2 explains the state of the input / output signals of the telegram communication means 4 of FIG. 1. Points A and B in FIG. 1 show the states of the signals A and B in FIG. Things.
[0012]
The automatic notification system of the present invention has a message format of "200 [BPS], 5 data bits, no parity bit, 1 stop bit" or "300" in order to specify a message unique to the connected message meter. [BPS], data bit 7, no parity bit, stop bit 1 ", but there is also a local message format unique to the maker. Therefore," 200 [BPS], data bit 5, no parity bit, stop bit 1 "or , "300 [BPS], data bit 7, no parity bit, stop bit 1", a message is sent from the automatic reporting device 1 or the center 6 in order to specify the message format of the various message meters 7a to 7c. .
[0013]
In the case of "200 [BPS], data bit 5, no parity bit, stop bit 1", "300 [BPS], data bit 7, no parity bit, stop bit 1", or a manufacturer-specific local message format Then, specific telegrams corresponding to various telegram meters 7a to 7c are sequentially transmitted according to the setting of the center 6.
[0014]
Then, the format of the electronic message meter corresponding to the electronic message responded by the electronic message meters 7a to 7c is changed to the format of the connected electronic message meters 7a to 7c by the notification from the automatic reporting device or the automatic reporting device 1. Means for registering the information.
[0015]
Next, the operation of the above configuration will be described.
[0016]
When the connection work of the telegram-type meters 7a, 7b, 7c is completed by the program code stored in the control means 2, the network control means 5 connects to the center 6.
[0017]
Alternatively, it is determined by the control means 2 that the automatic notification device 1 is being called through the network control means 5 by a call from the center 6 through the communication line, and the control means 2 controls the network control means 5 to communicate with the center 6. Connecting.
[0018]
Then, after the connection of the line, after passing through a connection procedure such as a password between the center 6 and the control means 2 through the transmission means 3, the control means 2 controls the message communication means 4 to control the center 6 and the message meter 7a, 7b and 7c are directly connected so as to be able to communicate in the message format of the message expression meters 7a, 7b and 7c.
[0019]
Next, a method of performing telegram communication between the center 6 and the telegram meters 7a, 7b, 7c will be described with reference to FIG.
[0020]
After the center 6 and the electronic meter 7a, 7b, 7c are connected by the automatic notification device 1, first, the electronic meter 7a sends an electronic meter for propane gas.
[0021]
The telegram 8 sent from the center 6 is passed to the control means 2 by the transmission means 3.
[0022]
If the first character of the message 8 is “STX” (start of text), the control means 2 outputs a mark signal to the message meter 7 a via the message communication means 4. In the meantime, the character data of the message transmitted from the center 6 is buffered in the control means 2, and when the output of the mark signal is completed, the character data in the buffer is transmitted in the order transmitted from the center 6.
[0023]
Further, when there is “ETX” (end of text) in the character data or an arbitrary interval without character data, the control unit 2 outputs a space signal to the telegram-type meter 7 a via the telegram communication unit 4. , The message 9 is converted.
[0024]
Then, if the telegram message 9 corresponding to the message meter 7a, message 11 sent from the message meter. 7a through the message a communication vehicle 4, which is converted by the character data only control hand stage 2 in message 10 Then, after being passed to the transmission means 3 and sent to the center 6, it is registered in the control means 2 that the electronic meter 7a is an electronic meter for propane gas.
[0025]
If the message 11 is not returned, it is determined that the message meter 7a is not for propane gas, and the message corresponding to the power message meter and then the water message meter is transmitted.
[0026]
Then, it is determined whether or not there is a reply to the transmitted message, and it is determined what type of message meter corresponds to the message, or whether the message is an unknown message meter.
[0027]
After the message format of the message meter 7a can be identified, the message meters 7b and 7c are similarly operated, and the message meter connected in the center 6 and the control means 2 is recognized.
[0028]
【The invention's effect】
As described above, according to the present invention, it is possible to make connection without considering the type of the electronic message meter connected to the automatic reporting device, and it is possible to construct a system with better installation workability. The system could be provided.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an overall configuration of an automatic notification system according to an embodiment of the present invention.
FIG. 2 is a message configuration diagram for explaining input / output signals at points A and B of the automatic notification system according to an embodiment of the present invention.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 automatic notification device 2 control means 3 transmission means 4 telegram communication means 5 network control means 6 center 7 telegram meter 8 telegram sent from center 9 telegram converted by telegram communication procedure 10 telegram converted by telegram communication procedure 11 telegram Message sent from the expression meter

Claims (1)

It has a function of communicating with a plurality of message formats for communication with a telegram meter (7) such as gas or water at the center (6), and can directly communicate with the message format of the telegram meter (7). The message communication means (4) has a function of adding a mark signal and a space signal to the message so as to be able to remove the mark signal and the space signal of the message transmitted from the message meter (7) to the center (6). ), Network control means (5) connected to the center (6) via a telephone line, transmission means (3) communicating with the center (6) via a telephone line, and the telegram from the center (6). when sequentially transmitting a message with a plurality of message formats for formula meter (7), to determine the presence or absence of a reply to the transmitted message, control so as to determine the type of the relevant telegram meter (7) Automatic notification system, characterized in that it comprises with, and said transmission means (3) and the telegram communication means (4) and control means for controlling said network control means (5) (2) performed.

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