JPH0817422B2 - Data setting method for terminal network controller in telemetering system - Google Patents

Description

The present invention relates to a data setting method for a terminal network control device in a telemetering system.

<Prior art> Terminals such as meters and sensors are connected to a terminal network control device (hereinafter,
Connected to the subscriber telephone line via the terminal NCU)
In a telemetering system in which information management of these terminals is performed by a center device such as a computer connected to the subscriber telephone line, the terminal NCU has data necessary for communication with the center device (for example, the terminal NCU identification number (NCU-ID number), center telephone number,
Date and time data, sensor call monitoring time, etc.) must be set in advance. Conventionally, two methods have been used as the data setting method for this terminal NCU. One is
There is a method in which the installation worker sets up the terminal NCU when installing the terminal NCU by using a data setting device that writes and reads data to the terminal NCU. The other one is to connect a line from the center to the terminal NCU. This is a method of connecting and setting data from the center to the terminal NCU through no ringing communication.

<Problems to be Solved by the Invention> By the way, in the method of setting using the above-mentioned data setting device, the data setting device used for writing and reading data to / from the terminal NCU needs to have a function of setting all necessary data. Therefore, there is a problem that it is expensive. Further, there is a problem that an error is likely to occur in the data input because the installation worker sets the data. On the other hand, in the method of setting data by no ringing communication, the terminal side switching equipment must have a no ringing trunk (NRT) for providing no ringing communication service. Therefore, in an area where the NRT is not attached, there is a problem that the center device cannot perform the no ringing communication, so that the center device cannot write data to the terminal NCU.

Therefore, an object of the present invention is to provide a simple data setting device equipped with only the minimum required function for calling the center device from the terminal NCU, and to use the data setting device for the terminal.
Another object of the present invention is to provide a data setting method that enables data to be set from the center device to the terminal NCU by connecting the NCU to the line of the center device, even in an area where no ringing communication service is provided.

<Means for Solving the Problems> In order to achieve the above object, the present invention connects a center device such as a computer to a telephone line, while connecting terminals such as meters and sensors to the telephone line via a terminal NCU. In the telemetering system that transmits the status of the terminal to the center device, the terminal NCU
Is a data setting method for setting data necessary for communication with the center device, wherein a data setting device having an identification number setting function, a telephone number setting function, and a terminal calling function is connected to the terminal NCU. , After setting the identification number and the telephone number of the center device in the terminal NCU by the data setting device, make a call from the terminal and connect the terminal NCU to the line of the center device to identify the terminal NCU. A number is transmitted to the center device, the center device transmits data necessary for communication with the center device to the terminal NCU having the identification number, and the data is set in the terminal NCU. I am trying.

<Operation> After the identification number of the terminal NCU and the telephone number of the center device are set in the terminal NCU by the data setting device, a call is made to the terminal to connect the terminal NCU to the line of the center device, The identification number is transmitted to the center device, the center device transmits data necessary for communication with the center device to the terminal NCU having the identification number, and the data is set in the terminal NCU.

In this way, by using a simple data setting device that only has the identification number setting function, the telephone number setting function, and the terminal calling function, the center device can change the terminal NCU from the center device even in areas where no ringing communication service is provided. Data can be written.

<Example> Hereinafter, the present invention will be described in detail with reference to illustrated examples.

FIG. 1 is a system configuration diagram of a telemetering system for explaining an embodiment of the present invention.

In FIG. 1, 1 is a center side terminal device such as a computer (hereinafter abbreviated as a center), 2 is a center network control device (hereinafter referred to as a center NCU), 3 is a center side exchange (center side LS), 4 Is a terminal side exchange (terminal side LS), 5 is a terminal NCU, 6 is an initial setting device as a data setting device,
7 is a telephone, and 8, 9 and 10 are telephone lines.

The initial setting device 6 is a device having a simple circuit configuration having only an identification number setting function, a telephone number setting function, and a terminal calling function. The ID number of the user of the terminal NCU 5 and the telephone number of the center 1 are input to the initial setting device 6 in advance.
Then, when the terminal NCU5 is installed, the initial setting device 6 is connected to the terminal NCU5 and the telephone number of the corresponding ID number center 1 of the user is written in the terminal NCU5.

Next, the initial setting device 6 is connected to the terminal for calling the terminal of the terminal NCU 6 to perform simulated terminal calling communication. The procedure of this terminal calling communication will be described based on the message format at the time of initial setting of the NCU in FIG.

When the initialization device 6 activates the terminal NCU5,
A telephone number request message is returned from the terminal NCU5. On the other hand, the initial setting device 6 sends the telephone number of the center 1 which has been input in advance to the terminal NCU5, and the terminal NCU5 sends the selection signal to the telephone line 10 with the telephone number. As a result, the line is connected to the center 1, and the center 1 returns a center response signal to the terminal NCU5. When the terminal NCU5 receives this, the initial setting device 6
After returning the connection completion signal to, the terminal response signal is returned to the center 1. When the center 1 receives this terminal response signal, it sends out an ID request. The initialization device 6 responds to this ID request by
The previously input user ID number is returned to the center 1.
Then, the data for requesting the center 1 to perform the initial setting for the terminal NCU 5 is included in this message. The center 1 identifies the user based on the above ID number and electronic message,
Data necessary for initial setting for operating the terminal NCU5, such as date and time data and sensor call monitoring time, is sent to the NCU5, and the terminal NCU5 stores the data and sets the data. In this case, since the line is already connected, even if the terminal side LS is not equipped with the NRT, data can be set without ringing the terminal side telephone 7. After setting the data for the terminal NCU5,
The center 1 sends an end signal to the initial setting device 6, and the initial setting device 6 also sends an end signal to the center 1,
Terminate the initial setting communication of NCU5.

<Effects of the Invention> As is clear from the above, according to the data setting method of the terminal network control device in the telemetering system of the present invention, only the identification number setting function, the telephone number setting function and the terminal calling function are provided. Since the data setting device is used, the data setting device can be simple and inexpensive. Also,
Since the center device is called by using the data setting device, data can be written from the center device to the terminal network control device even in an area where the no-ringing communication service is not provided. Further, since the data is set from the center device, there is no trouble such as a mistake in inputting the data and the data can be easily managed. Further, there is an excellent effect that initial setting of data is performed at the time of installing the terminal network control device, and at the same time, it can also serve as an operation test of the terminal calling communication.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of a telemetering system for explaining an embodiment of the present invention, and FIG. 2 is a diagram showing a message format at the time of initial setting of a terminal NCU in the above embodiment. 1 ... Center side terminal device, 2 ... Center NCU, 3 ... Center side LS, 4 ... Terminal side LS, 5 ... Terminal NCU, 6 ... Initial setting device, 7 ... Telephone, 8, 9, 10 …… Telephone line.

Claims (1)

[Claims] 1. A center device such as a computer is connected to a telephone line, while terminals such as meters and sensors are connected to the telephone line through a terminal network control device, and the status of the terminal is transmitted to the center device. In the telemetering system configured as described above, a data setting method for setting data necessary for communication with the center device in the terminal network control device, wherein the terminal network control device is provided with an identification number setting function and a telephone. After connecting a data setting device having a number setting function and a terminal calling function, and after setting the identification number and the telephone number of the center device in the terminal network control device by the data setting device,
A terminal call is made to connect the terminal network control device to the line of the center device, the identification number of the terminal network control device is transmitted to the center device, and the center device transmits the identification number of the terminal network to the center device. Data setting for the terminal network control device in the telemetering system, characterized in that data necessary for communication with the center device is transmitted to the control device and the data is set in the terminal network control device. Method.