JP3091070B2 - Terminal side network controller - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal network control device (terminal N) for a system for performing automatic meter reading of gas, water and the like from a general subscriber telephone line by no ringing communication.
CU) after installation.

[0002]

2. Description of the Related Art Conventionally, in a system for performing automatic meter reading of gas, water, and the like by a non-ringing communication from a general subscriber telephone line, a terminal-side network controller is installed at a user's house, and various settings are made in the terminal-side network controller. When performing, write all necessary data in advance by using a portable setting device, or write an ID (a code specifying the terminal side network control device) and an NRS number (a number for performing no ringing communication) by using the setting device, Necessary data was previously downloaded from the center by no-ringing communication.

In Japanese Patent Publication No. 4-38177,
At the time of initial setting of the individual number of the terminal side network controller, an application for individual number registration is made to the center side in advance, a specific center is automatically dialed, a signal indicating the individual number is received from the center, and this signal information is stored in the memory. And thereafter completes the initial setting as an individual number of the terminal side network control device.

[0004]

However, in the above-mentioned conventional example, a portable setting device is required for the initial setting of the terminal side network control device. In the installation work of the terminal-side network control device, the work is often performed at a high place, and it is desired to avoid working with a setting device or the like even in terms of safety.

Further, in the example of Japanese Patent Publication No. 4-38177, the inconvenience that a person must communicate with the initial setting of the terminal-side network control device, or if another terminal-side network control device is in operation. If it is received from the device, there is a possibility that the ID is erroneously written in the terminal side network control device.

In view of the above, the present invention does not require a portable setting device for the initial setting of the terminal-side network control device.
An object of the present invention is to provide a terminal-side network control device that does not have the trouble of contacting a person or that there is a risk of writing an ID in another terminal-side network control device by mistake.

[0007]

In order to achieve the above object, the present invention provides a terminal-side network control device of a telemeter system for performing automatic meter reading of gas, water, etc., which performs no-ringing reception and terminal transmission. In an initial state in which nothing is set, such as an ID, a call destination telephone number, and an NRS number, a ringing signal (16 Hz) is detected and a ringer is received.
(Temporary ID is also acceptable), call destination telephone number, NRS number, etc. are written, and then the terminal originates and the setting data is downloaded from the center.

[0008]

The terminal-side network control device of the present invention detects a ringing signal (16 Hz) in the initial state where nothing is set, such as an ID, a call destination telephone number, an NRS number, and receives a ringer call. , PB (push button) signal for ID
(Temporary ID is also acceptable), call destination phone number, NRS number, etc. are written, and then the terminal originates and the setting data is downloaded from the center.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, first to sixth embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a block diagram of the present system. 1 is a center, 2 is a telephone station on the center side, 3 is a telephone station on the user's home side, 4A and 4B are terminal-side network controllers corresponding to non-ringing calls, respectively. machine,
6 is a telephone. In the figure, the device 5 and the telephone 6 are connected only to the terminal-side network control device 4A, but the above-described devices and telephones are similarly connected to the terminal-side network control device 4B.

FIG. 2 is a block diagram of the terminal-side network control device 4A.
This is shown in a diagram, in which the device 5, telephone 6
And the line 7 is connected. The terminal-side network control device 4A has a main control device 12 at the center thereof, and controls the main network control device 12 to operate according to a predetermined procedure, such as transmission and reception of various information and monitoring of the use status of the telephone 6.

Reference numeral 8 denotes an FSK (frequency modulation) modem, and reference numeral 9 denotes a PB (push button) transmission / reception circuit.
10 is a line side circuit, 11 is a connection switching and monitoring circuit of the telephone 6, 13 is an interface, 14 is a power supply circuit, 15 is a memory, 16 is a line switch, 17
Is a reset circuit. Reference numeral 18 denotes a separation switch for determining whether or not the terminal side network control device 4A is interposed between the telephone line and the home telephone, and 19A and 19B are contact input terminals.

FIG. 3 is an external view of the terminal-side network control device 4A.
The inside of a part is also shown. Reference numeral 18 denotes a separation switch, and 19A and 19B are contact input terminals. The contact input terminals 19A and 19B are terminals for connecting devices such as a meter. Reference numeral 20 denotes a terminal block, and reference numeral 21 denotes a rubber bush for drawing in each cable.

Next, the operation of the first embodiment of the present invention will be described. FIG. 4 is a sequence diagram of the incoming call to the terminal-side network control device 4A, which is exactly the same as the incoming call sequence to the telephone in the ordinary public telephone network. First, a person who has completed construction or a person who has been notified that construction has been completed calls the user's home using a normal telephone (S1). Thus, a ringer indicating an incoming call arrives at the terminal side network control device 4A (S2). In the case of the terminal-side network control device 4A in a state where the initial data such as the ID code and the telephone number of the center 1 has not been input (initial state), the ringer enters the following operation preparation state.

The operation ready state of the terminal side network control device 4A means a state of waiting for input of initial data such as an ID code and a telephone number of the center 1 by a PB signal after off-hook. When the ringer receives and arrives, the transmitting side sends data such as the ID and the telephone number of the center 1 by PB sound using the sound as a signal (S3). At this time, the PB sound on the transmitting side may be input by hand and transmitted, or may be continuously transmitted by a dialer. The terminal-side network control device 4A can sufficiently set the length and interval of the PB sound at the time of data reception by operating a telephone button if redundancy is provided only in the initial state.

The terminal-side network controller 4A waits for the transmitting side to go on-hook after writing predetermined data with the PB signal, confirms the on-hook, and then inputs the center 1
A call to the center 1 based on the telephone number (S
4). Then, the center 1 sends the ID to the terminal side network control device 4A.
The code and the like are confirmed (S5). At this time, the terminal-side network control device 4A returns a response to the center 1 based on the contents of the initial data (S6). The center 1 checks the data content of the terminal-side network control device 4A, and if it is determined to be normal, downloads data required for the automatic meter reading system other than the initial data to the terminal-side network control device 4A ( S7).

In this way, the construction worker does not need a setting device for the initial setting of the terminal-side network control device 4A.
It is possible to easily perform the initial setting of the terminal-side network control device 4A using a public telephone or a mobile telephone capable of transmitting a signal.

Next, the operation of the second embodiment will be described. FIG.
FIG. 7 is a sequence diagram showing an operation of the second embodiment. First,
If you are a contractor or have been notified that construction has been completed,
A call is made to the user's home using a normal telephone (T1).
Thus, a ringer indicating an incoming call arrives at the terminal side network control device 4A (T2). In the case of the terminal-side network control device 4A in which initial data such as the ID code and the telephone number of the center 1 has not been input (initial state), the ringer enters the operation preparation state described below.

The operation ready state of the terminal-side network control device 4A means a state of waiting for input of initial data such as an ID code and a telephone number of the center 1 by a PB signal after off-hook. When the ringer receives and arrives, the calling side sends data such as the ID, NRS number, and telephone number of the center 1 in PB sound using the sound as a signal (T3). At this time, the PB sound on the transmitting side may be input by hand and transmitted, or may be continuously transmitted by a dialer. The terminal-side network control device 4A includes:
The length and interval of the PB sound at the time of data reception can be set sufficiently by operating a telephone button if redundancy is provided only in the initial state.

After completion, the center 1 receives the NR written with the PB signal.
The terminal-side network control device 4A is called with the S number (T4). The terminal side network control device 4A returns a response to the center 1 (T5).
Then, the center 1 confirms the ID code and the like to the terminal side network control device 4A (T6). At this time, the terminal side network control device 4
A returns a response to the center 1 based on the contents of the initial data (T7). The center 1 checks the data content of the terminal-side network control device 4A, and if it is determined to be normal, downloads data required for the automatic meter reading system other than the initial data to the terminal-side network control device 4A ( T8).

Next, the operation of the third embodiment will be described. Third
The embodiment is an embodiment in which a plurality of terminal-side network controllers 4A, 4B, 4C,... FIG. 6 shows a state in which a plurality of terminal-side network controllers 4A, 4B, 4C,... Are connected. By using the contact input terminals 19A, 19B (see FIG. 3) provided in the terminal side network control devices 4A, 4B, 4C,..., The operation preparation is made by the number of short-circuits between the contact input terminals 19A and 19B. The number of ringers entering the state can be set. Further, short-circuiting between terminals can be easily performed by using tweezers or the like.

That is, when the number of short-circuits between the contact input terminals 19A and 19B of the terminal-side network control device 4A is one and the number of ringers is one, the terminal-side network control device 4A enters an operation preparation state. If the number of short-circuits between the contact input terminals 19A and 19B of the terminal-side network control device 4B is two and the number of ringers is two, the terminal-side network control device 4B enters an operation preparation state. In this manner, data can be sequentially downloaded from the center 1 to the terminal-side network controllers 4A, 4B, 4C,.

Next, the operation of the fourth embodiment will be described. FIG.
FIG. 14 is a sequence diagram showing an operation of the fourth embodiment. First,
If you are a contractor or have been notified that construction has been completed,
Contact Center 1. The center 1 has a terminal-side network control device 4
A is called (U1). And the terminal side network control device 4A
Returns a response to the center 1 (U2). The center 1 receives the response and writes an ID code, an NRS number, and the like as initial data in the terminal-side network control device 4A (U3).

At this time, a code for controlling the terminal-side network control device 4A (such as a secret code) is included in the ID code of the initial data, so that communication with the meter or the like is performed (U4).
The contents of the confirmation are reported to the center 1 based on the length and the number of times of the PB signal (U5). By doing so, a construction worker or a person who is notified that the construction has been completed can easily perform an initial check as to whether or not the construction has been correctly performed.

Next, the operation of the fifth embodiment will be described. Fifth
The embodiment is an embodiment in which a third party unrelated to the setting work calls the user's house during the setting work. If the predetermined security code is not input within a predetermined time, the terminal-side network controller 4A does not wait for the input of the initial data. A function is added such that setting of initial data cannot be easily performed by another person. When the terminal-side network control device 4A once goes on-hook, it does not enter the operation ready state even if the ringer arrives for a certain period of time (several minutes), and determines that the terminal-side network control device 4A is for a telephone call. Complete.

FIG. 8 is a sequence diagram showing the operation of the fifth embodiment. During the setting operation, a third party calls the user's house (V1). After the arrival of the ringer, the terminal side network controller 4
A goes off-hook and sends out a PB signal for a certain time (V
2). At this time, since the third party cannot input the personal identification code, the terminal-side network control device 4A does not wait for the input of the initial data but goes on-hook thereafter (V3). The third party immediately makes a call again to the user's home, and the terminal-side network control device 4A determines that the call is to the telephone, and the telephone is connected to the user's home (V4).

Next, a sixth embodiment will be described. The terminal-side network control device 4A is provided with a separation switch 18 for determining whether the terminal-side network control device 4A is interposed between the telephone line and the home telephone. In the sixth embodiment, this is utilized, and the separation switch 18 is turned on / off at a constant cycle.
The terminal-side network control device 4A returns to the initial state by performing FF. By doing so, even if erroneous data is registered at the time of initial data writing, the initial data writing operation can be immediately performed again.

[0027]

As described above, according to the present invention, in the terminal-side network control device of the telemeter system for performing automatic meter reading of gas, water, etc., which performs no ringing reception and terminal transmission, the initial state (ID, call destination) In a state in which nothing is set such as a telephone number and an NRS number), a ringer incoming call is detected by detecting a call signal (16 Hz).
(Temporary ID is also acceptable), call destination telephone number, NRS number, etc. can be written. In addition, since the terminal is transmitted thereafter and the setting data is downloaded from the center, a portable setting device is not required for the initial setting.

In the third aspect, the calling signal (16
Hz) is set by the number of short-circuits of the contact input terminals, so that it can be sequentially downloaded to a plurality of terminal side network control devices.

[0029]

Further, in claim 4 and claim 5 , after the incoming call,
A PB signal is sent from the terminal side network controller, and P
The system is in a standby state until a password is transmitted by the B signal. If the password is not transmitted or the password is incorrect, it is determined that the code is for the telephone, so that the telephone at the user's home can be used even during the setting operation. .

According to a sixth aspect of the present invention, once data is set, the separation switch is turned on / off a predetermined number of times at a predetermined timing and returns to an initial state. Even after registration, the initial data write operation can be immediately performed again.

[Brief description of the drawings]

FIG. 1 is a block diagram of the present system.

FIG. 2 is a block diagram of the terminal-side network control device of the present invention.

FIG. 3 is an external view of a terminal-side network control device of the present invention.

FIG. 4 is a sequence diagram showing the operation of the first embodiment.

FIG. 5 is a sequence diagram showing the operation of the second embodiment.

FIG. 6 is a diagram showing a state in which a plurality of terminal-side network control devices are connected.

FIG. 7 is a sequence diagram showing the operation of the fourth embodiment.

FIG. 8 is a sequence diagram showing the operation of the fifth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Center 2 Telephone station on the center side 3 Telephone station on the customer premises 4A, 4B Terminal network controller 5 Equipment such as gas meter and security equipment 6 Telephone 7 Line 8 FSK modem 9 PB transmission / reception circuit 10 Line side circuit 11 Connection switching and telephone switching Monitoring circuit 12 Main controller 13 Interface 14 Power supply circuit 15 Memory 16 Line changeover switch 17 Reset circuit 18 Isolation switch 19A, 19B Contact input terminal 20 Terminal block 21 Rubber bush

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Yukiya Higuchi 22-22 Nagaikecho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (56) References JP-A-4-307848 (JP, A) JP-A-4 JP-A-271650 (JP, A) JP-A-64-39158 (JP, A) JP-A-1-63795 (JP, A) JP-A-2-128565 (JP, A) JP-A-3-64160 (JP, A) JP-A-3-148948 (JP, A) JP-A-63-276697 (JP, A) JP-A-63-276700 (JP, A) JP-A-5-48753 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) H04M 11/00-11/10 H04Q 9/00-9/16

Claims (6)

(57) [Claims] 1. A terminal-side network control device of a telemeter system that performs automatic meter reading of gas, water, and the like.
A terminal-side network control device for performing terminal calling, wherein in an initial state in which an ID, a call destination telephone number, and an NRS number are not set, a ringing signal is detected by detecting a call signal. 2. After an incoming call, a PB (push button) signal
2. The terminal-side network control device according to claim 1, wherein D, a call destination telephone number, and an NRS number are written , and thereafter, a terminal call or a call is made from a center, and setting data is downloaded from the center. 3. The terminal-side network control device is preset.
Ringer ringer
Communication, and the specified ringer
The number of times is two contact inputs provided in the terminal side network controller
Depending on the number of times the terminals are short-circuited,
3. The apparatus according to claim 2, wherein the setting can be performed.
3. The terminal-side network control device according to 1. 4. The terminal side according to claim 1, wherein after receiving the call, a PB signal is transmitted from the terminal side network control device, and the terminal side is in a standby state until a password code based on the PB signal is transmitted from the transmission side. Network controller. 5. A telephone is also connected to the terminal side network controller.
If the security code is not sent or the security code is incorrect, even if there is a ringer, the
5. The terminal-side network control device according to claim 4, wherein the terminal-side network control device is determined to be for a telephone . 6. A terminal side network control between a telephone line and said telephone.
Control switch to determine whether to intervene
Ji is provided, once, after the data has been set, before
Serial Isolating switch at a predetermined timing, the terminal-side network controller according to claim 5, characterized in that return to a predetermined number of times ON / OFF Then the initial state.