JPH0364160A - Data setting method for network controller for terminal equipment in telemetering system - Google Patents

Abstract

PURPOSE:To set a data from a center equipment to a terminal NCU from any district by providing a simple data setting device provided with only a required minimum function to call the center equipment from a terminal NCU and using the setting device to connect a terminal NCU to a line of the center equipment. CONSTITUTION:A terminal network controller (terminal NCU) 5 is provided with a data setting device 6 provided with an identification number setting function, a telephone number setting function and a terminal dial function, after an identification number of the terminal NCU 5 and a telephone number of a center equipment 1 are set to the terminal NCU 5, the terminal equipment is called to connect the terminal NCU 5 to a line of the center equipment 1. Then the identification number of the terminal NCU 5 is sent to the center equipment 1, which sends data required for the communication with the center equipment 1 to the terminal NCU 5 having the said identification number and the data is set to the terminal NCU 5. Thus, a data is written from the center equipment 1 to the terminal NCU 5 even in a district where no no-ringing communication service is available by having only to use the simple data setting device 6.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a data setting method for a terminal network control device in a telemetering system.

<Prior art> A terminal such as a meter or sensor is connected to a subscriber telephone line via a terminal network control unit (hereinafter abbreviated as 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 is provided with data necessary for communication with the center device (for example,
It is necessary to set the terminal NCU identification number (NCU-ID number), center telephone number, date and time data, sensor call monitoring time, etc.) in advance. Conventionally, two methods have been used to set data for the terminal NCU. One is to write data to the terminal NCU,
Terminal N using a data setting device that reads data.
One is a method in which the installation worker sets the CU when installing the CU, and the other method is to connect a line from the center to the terminal NCLJ and set data from the center to the terminal NCU through no-ringing communication.

<Problems to be Solved by the Invention> By the way, in the above method of setting using a data setting device, it is necessary that the data setting device used for writing and reading data to and from the terminal NCU has a function that can set all necessary data. There was a problem that it was expensive. Furthermore, since the data is set by the installation worker, there is a problem in that errors are likely to occur in data input. On the other hand, in the method of setting data through no-ringing communication, the terminal side exchange must have a no-ringing trunk (NRT) for providing no-ringing communication service. Therefore, in areas where NRT is not installed, no-ringing communication from the center device is not possible, so there is a problem that data cannot be written from the center device to the terminal NCU.

Therefore, an object of the present invention is to provide a simple data setting device that has only the minimum necessary functions to call the center device from the terminal NCU, and to connect the terminal NCU to the line of the center device using this data setting device. By doing so, it is an object of the present invention to provide a data setting method that allows data to be set from a center device to a terminal NCU even in areas where no-ringing communication service is provided.

Means for Solving the Problems To achieve the above object, the present invention connects a central device such as a computer to a telephone line, and connects a terminal such as a meter or a sensor to the telephone line via a terminal NCU. and in a telemetering system configured to transmit the status of the terminal to the center device, the terminal NCU
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, a terminal call is made to connect the terminal NCU to the line of the center device, and the identification number of the terminal NCU is set. A number is transmitted to the center device, data necessary for communication with the center device is transmitted from the center device to the terminal NCU having the identification number, and the data is set in the terminal NCU. It is said that

Function> After setting the identification number of the terminal NCU and the telephone number of the center device to the terminal NCU using the data setting device, make a terminal call to connect the terminal NCU to the line of the center device, and connect the terminal NCU to the line of the center device. The identification number is transmitted to the center device, data necessary for communication with the center device is transmitted from 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 an identification number setting function, a telephone number setting function, and a terminal calling function, it is possible to connect from the center unit to the terminal NCU even in areas where no-ringing communication service is provided. Data can be written.

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

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

In FIG. 1, l is a center side terminal device such as a computer (hereinafter referred to as center), 2 is a center network control unit (hereinafter referred to as center NCU), 3 is a center side exchange (center side LS), and 4 is a center side terminal device (hereinafter referred to as center). is the terminal side switch (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 is a telephone line.

The initial setting device 6 is a device with a simple circuit configuration that is provided with only an identification number setting function, a telephone number setting function, and a terminal calling function. In this initial setting device 6, the terminal NCU 3 is set in advance.
The ID number of the user and the telephone number of the center are entered manually. Then, when installing the terminal NCU3, the initial setting device 6 is connected to the terminal NCU3, and the user's ID number and the telephone number of the center 1 are written in the terminal NCU3.

Next, the initial setting device 6 is connected to the terminal call terminal of the terminal NCU 6, and simulated terminal call communication is performed. The procedure for this terminal call communication will be explained based on the NCU initial initial fixed time message format shown in FIG.

When the initial setting device 6 activates the terminal NCU3, a message requesting a telephone number is returned from the terminal NCU3.

In response to this, the initial setting device 6 sends the telephone number of the center 1 inputted in advance to the terminal NCU3, and the terminal NCU3 sends a selection signal to the telephone line 1O using 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 NCU3. Upon receiving this, the terminal NCU 3 returns a connection completion signal to the initial setting device 6, and then returns a terminal response signal to the center 1. When the center 1 receives this terminal response signal, it sends an ID request. In response to this ID request, the initial setting device 6 returns the user's ID number input in advance to the center 1. This message includes data requesting the center 1 to perform initial settings for the terminal NCU3. Center l is the above ID
The user is identified from the number and the message, and data necessary for initial settings for operating the terminal NCU3, such as date and time data and sensor call monitoring time, is sent to the terminal NCLJ5, and the terminal NCU3 transmits this data. Memorize and set the data. In this case, since the line is already connected, data settings can be made without ringing the telephone 7 on the terminal side even if the terminal side LS is not equipped with NRT.

When the data setting for the terminal NCU3 is completed, the center 1 sends a completion signal to the initial setting device 6, and the initial setting device 6 also sends a completion signal to the center 1, and the terminal NC
Terminate the initial setting communication of U3 <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, the identification number setting function and the telephone number setting function. Since we use a data setting device that only has a terminal call function,
The data setting device can be simple and inexpensive. Furthermore, since the data setting device is used to call the center device, data can be written from the center device to the terminal network control device even in areas where no-ringing communication service is provided. Furthermore, since data settings are performed from the center device, there are no problems such as data entry errors, and data management becomes easier. Furthermore, at the same time as initializing the data when installing the terminal network control device,
It has the excellent effect of being able to also serve as an operation test for terminal call communication.

[Brief explanation 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. l... 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) While a center device such as a computer is connected to the telephone line, terminals such as meters and sensors are connected to the telephone line via a network control device for terminals, and the status of the terminal is transmitted to the center device. A data setting method for setting the data necessary for communication with the center device in the terminal network control device in the telemetering system, wherein the terminal network control device has an identification number setting function and a telephone number setting function. After connecting a data setting device having a function and a terminal calling function, and setting the identification number and the telephone number of the center device in the network control device for the terminal by the data setting device,
The terminal makes a call, connects the terminal network control device to the line of the center device, transmits the identification number of the terminal network control device to the center device, and connects the terminal network with the identification number from the center device. Data setting of a terminal network control device in a telemetering system, characterized in that data necessary for communication with the center device is transmitted to a control device, and the data is set in the terminal network control device. Method.