JPS60183866A - Master test center device - Google Patents

Abstract

PURPOSE:To test a no-ringing circuit network automatically and easily by providing a master test center device which is used for initial check at the time, when a network controller for terminal is installed, and for locating test of a demarcation point between direct management and self-management at an operating time in the telemeter system. CONSTITUTION:A master test center device 1 accepts an incoming call of test request from a telephone line to close a loop. An originating station 2 detects this closing to stop the other party call signal (ring-back tone) of a telephone set of a test requesting subscriber. When a line is connected, the master test center device 1 requests the test requesting subscriber to input various data (a no-ringing trunk number, a subscriber's number, etc.) required for test by a voice response and a confirmation tone. The master test center device 1 connects a no- ringing line from the telephone line on a basis of inputted data to call a network controller 5 for terminal and executes test of the network controller 5 for terminal or test to a testing device 6 of the network controller for terminal and diagnoses defective positions on a basis of test conditions.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a centralized test center device for a no-ringing transmission system that performs data transmission using a general subscriber telephone line. In particular, it is a device suitable for remote meter reading of water, gas, electricity, etc. meters, and is a device that can be used as a central device in a no-ringing transmission system that uses a telephone line to transmit data without interfering with normal telephone calls. The present invention relates to a centralized test center device that automatically and easily tests a no-ringing line network.

[Background of the invention]

A method for remotely reading water, gas, electricity, etc. usage meters using subscriber telephone lines has been developed, and preparations are underway for its widespread introduction in the future.

In this system, a specific electronic device is installed in addition to a telephone at the terminal of the subscriber telephone line, and this electronic device is connected to each usage meter. Therefore, during the initial setup of this electronic device,
Alternatively, it is necessary to periodically test whether the equipment is operating in a compact manner.

It is also possible that this electronic device may malfunction.
At this time, tests must be conducted in response to requests from time to time.

(Several studies have been made regarding this test method and equipment since then, but the method and equipment for the introduction of this type of method in a highly artificial and widespread manner have not yet been determined.) This is not confirmed.In other words, if this type of system is implemented on a large scale and widely, the number of claims from subscriber telephones will increase, and it will become equivalent to a test bed for subscriber lines traditionally entrusted to central telephone offices. It is said to be something that cannot be handled by equipment.

In addition, with this type of system, although the telephone line is managed by the telephone office (currently Nippon Telegraph and Telephone Public Corporation), the electronic equipment installed in the terminal is likely to be managed by a different operating company, and failures may occur. When this occurs, it is important to appropriately isolate the failure location.

[Purpose of the invention]

The present invention was made in view of this situation, and an object of the present invention is to provide a centralized test center device that automatically and easily tests a no-ringing line network.

That is, the present invention automatically tests a large number of terminal network control devices installed over a wide area in a telemeter system, and diagnoses defective openings based on the test conditions in a short time and easily. The purpose of the present invention is to provide a centralized test center device that can be used for initial checks when installing a 11i'l control device for the Juki End Song Dynasty and for testing the separation of directly managed and privately managed demarcation points during continuous use.

[Features of the invention]

The present invention activates a no-ringing trunk connected to a receiving station via a subscriber telephone line network from a center network control device connected to a calling station, and joins: 1.14 control for terminals connected to a U terminal. In a centralized test plink device of a data transmission system, which is configured so as not to call the device, and in which a computer connected to the center network control device records information transmitted to the terminal network control device, the subscriber telephone line Connected to the network and automatically receives calls from subscriber telephones.
) means, and a test using a dial signal from the subscriber telephone th! means for receiving iti and this test dependence mi
Activate the no-ringing trunk according to n,
Based on the test request described in 1.
HA: a means of performing tests and recording the test results;
Based on the results of the 10-1 test, the subscriber telephone lined up with the subscriber telephone that underwent 1-1 of the 2nd test, and was equipped with a means for transmitting iW by voice synthesis. It is characterized by

[Explanation based on examples]

Next, the centralized test center apparatus according to the present invention will be described in detail with reference to the drawings. Figure 1 shows a no-ringing system using a general subscriber telephone line to which the present invention is applied.
:1 block configuration diagram.

In FIG. 1, 1 is a <B medium test center equipment (C-TEC) according to the present invention. 2 is the originating station on the center side, 3 is the terminating station on the α111 US side, and 4 is a special trunk added to the exchange at the terminating station, that is, a no-ringing trunk (N
RT), 5 is a terminal network control device; ((TNR-NCI
I), 6 is the η1111 Song 1'14 control device test equipment (TN
l? -NCII-TST>, 7 is the joining 'r1 phone.

II, 12 is a telephone line on the center side, 13 is a medium thin line between offices,
] 4.15.1G is an interface line between the exchange 3 and the no-linking 1-rank 4 interface line, 17 is a subscriber telephone line, 18 is a connection line between the telephone 7 and the network control device 5 for 0111 terminal, 19
It is a nota gable.

The no-ringing trunk 4 is picked up by the receiving station 3, becomes the overlapping side for the center side device, and the calling side for the terminal side device, and has a no-ringing connection command for the terminal side device. It is a device.

The 0111 terminal string 1 control device 5 is the centralized test center device 1
It has a no-ringing terminating network control function, a data modulation/demodulation function, and a meter selection activation function, which receives the activation signal from the no-ringing 1-rank 4 which receives a no-ringing connection command from the no-ringing connection command, and uses the station power supply via the regular subscriber telephone line 17. Then 'JD's production.

☆1j, 1 terminal fine control device test device 6 is for terminal 111
1 is connected to the control device 5, and when performing a terminal-to-terminal test, the function of receiving data from the 4B central test center device 1 and the device 11 of transmitting data back to the centralized test center device 1 are provided within the IT system. )・λ battery a, = operates.

The centralized test center device 1 of the present invention includes
A QiAl terminal network control device 5 which connects a no-ringing line and shares the no-ringing line with subscriber telephone 7, performs a disconnection test inside the terminal network control device 5 or performs a disconnection test inside the terminal network control device 5. 14 control device test equipment 6, a function to diagnose defective parts based on the test status, and a voice synthesis function to reply with the test results. This is a device that can perform this automatically and easily.

Electronic computer 40, center network control unit (C-NCU) 4
A meter sensor 43 for I, gas, water, electricity, etc., and a telephone line 42 to the center side are necessary devices for actual self-inspection.

In such a system, the electronic computer 40 accesses the 1Ilf primary subscriber line via the center network control device 41, connects the terminal network control device 5, and records information from the meter sensor 43. Since the feature of the present invention is the test by the centralized test center device 1, this operation will be further explained.

The second part 1 is the operation sequence 1 of a no-ringing transmission system to which the centralized test center apparatus of the present invention is applied. The operation sequence of the entire system is shown in Figure 2(a), centering on the centralized test center device I, which is the core of the system.
The centralized test center device 1, which will be explained with reference to (m), receives the IT 2 of the test request 1-1 from the telephone line 39 and closes the loop (21st block (+)).

(IL'T station 2 detects this and sets the calling signal (ring hack tone) to the telephone of the test requester H to 1 (Figure 2)).

When the line is connected, the 4HH testing center equipment will
Various data [no-ringing trunk number,
Enter the subscriber number, test type (LIJ test or Of!J non-face-to-face test), terminal number, and callback]. Ig
Figure 2 (c), (d)).

When the centralized test center device 81 confirms that the various data inputs have been correctly performed, it sends out a confirmation signal (Fig. 2 (e)). When trusted, the receiver of the telephone goes on-hook.Receiving station 3
Then, this is detected and the loop is opened (FIG. 2(f)).

Based on the input data, the centralized test center device 1 connects the no-ringing line from the 11i line 31 to call the terminal control device 5, and then calls the terminal network control device 5.
A test or a face-to-face test with the terminal network control device testing device 6 is carried out, and based on the test situation, a diagnosis is made at 141 locations (Fig. 2 (g)).
■The operation sequence for accessing and testing the no-ringing line is clearly described in the "Network Control Device" filed by the prior patent application No. 34449-34451 of 1981, so a detailed explanation will be given here. Omitted.

When the centralized test center apparatus 1 finishes diagnosing the defective part, it starts calling the test requester from the telephone line 39 (FIG. 2(h)).

The transmitting station 2 detects this and sends back a tar tone ((1) in FIG. 2).

When the centralized test center device 1 detects this dial tone, it sends out the dial of the test requester's telephone. When the test requester receives this call and hangs up the telephone receiver, the receiving station detects this and sends a polarity reversal signal back to the centralized test center device 1 (FIG. 2(k)).

When the centralized test center device 1 detects the polarity inversion signal, it responds to the test requester with the test result by voice synthesis, and then opens the loop of the telephone line 39.
)).

Note that the second operation failure is when the test sponsor temporarily disconnects the telephone line, and if the line is left connected, please refer to Section 21QI (r) and Figure 2 (
The sequence of hl~(kl is no longer required.In addition, the centralized test center device v+:1 can take the next retest without opening the loop of m+. It is also possible to increase the number of people.

No. 3121 is 8'O# of the centralized test center device of the present invention
The block configuration is 1 me 1, and it is shown in Figures 1 and 2.
This is a device for realizing the functions explained in the figure. In Fig. 3, 21 to 31 are circuits that conduct a no-ringing l1il test, 32 to 39 accept test requests, diagnose defective parts based on the test conditions of 21 to 31, and transmit the test results by voice synthesis. This is the circuit that responds.

Further, 30 is an interface circuit that connects the two.

The centralized test center apparatus of the present invention will be explained below using FIG. 31.

21 is a loop closure and polarity reversal detection circuit, 22 is a dial signal sending circuit for sending out first and second dial signals, and 23 is a no-ringing trunk control signal (N
RTS) Sending circuit 1, 24 is data modulation circuit, 25 is dial 1 and 4001 for detecting visit tone.
1z receiving circuit, 2G is second dial request signal (St)
) reception circuit, 27 a data demodulation circuit, 28 a two-wire/four-wire conversion hybrid circuit for combining transmission and reception, 29 a control circuit, 30 an ink face circuit composed of a transmission right control circuit, a priority circuit, etc. , 3I is a center side telephone line for no-linking line testing, 32 is a bell signal detection circuit, loop closure circuit, polarity reversal detection circuit and polarity identification circuit, 33 is a voice synthesis circuit, 34 is a dial signal sending circuit and various 1 - - tone sending circuit; 35 is a receiving circuit for receiving input data from the test requester; 36 is a dial 1 to - tone and 400 for detecting visit tones;
Hz receiving circuit, 37 is a two-wire four-wire conversion hybrid circuit,
38 is a control circuit, and 39 is a center-side telephone line for accepting test requests and replying with test results.

〔Effect of the invention〕

As described above, /I-, the invention provides a wide range of multi-stage i〆(made, l
, lj, ) An unmanned test was conducted on the US network control equipment in a real Lfl! L. Based on the test situation, medical examination 1υ1 of no-ringing line tears can be performed easily and in a short time regardless of geographical conditions (it has a great effect).

In particular, the above, l, 4j + Suekawa tlY] 1lal fa
It has the advantage of being extremely effective in initial checks when installing equipment, and direct/self-operated demarcation point tests during operation, making it possible to test no-ringing systems economically. .

[Brief explanation of drawings]

FIG. 1 is a block diagram of a no-ringing transmission system using a general subscriber telephone line in which a centralized test center device according to an embodiment of the present invention is used. FIG. 2 is a first diagram of the operation sequence. FIG. 3 is a schematic block diagram of the centralized test center apparatus of the present invention. ■... Centralized testing center equipment (C-TIEC), 2.
... Originating (i: i station, 3... Destination station, 4... No-ringing i rank (NRT > , 5...&ii,
Network control unit for 1 terminal (TNR-NCU), 6 ''' 6
ii'+ Song Chuan till control device test equipment (TNII-N
CU-, TST), 7... Subscriber telephone, 11.12
... Center side telephone line, 13 ... Inter-office live silk line, 1
4, 15.16... Ink face line, 17... Subscriber telephone line, 18... Connection line, +9... Meter cable, 21... Loop closure and polarity reversal signal circuit 11F
r, 22... Title signal sending circuit, 23... No-ringing trunk control signal (NIITS) sending circuit, 24... Data modulation circuit, 25... 400 fi
z reception h! 3, 2G...Second dial request signal (SDR) receiving circuit, 27...Data return/iJ times 1 Raku, 28...Two-wire/four-wire conversion hybrid circuit, 29...
・Control circuit Ml), 30...interface circuit, 3j
... Center side telephone line for testing, 32 ... Bell signal detection circuit, loop closure circuit, polarity reversal detection circuit and polarity identification circuit, 33 ... Voice synthesis circuit, 34 ... Dial signal sending circuit and various 1--on sending times 1, 35
...Input data receiving circuit, 3G...40 (] I
tz receiving circuit, 37... Two-wire four-wire conversion high-circuit circuit, 38... Control circuit, 39... Center side telephone line, 40... Electronic computer, 41... Center coarse control device (C -NCII), 42... Center side outgoing telephone line, 43... Meter sensor. Patent issued 12r 1 patent attorney Naotaka Ide, ¥12 Figure 3 Figure 3

Claims (1)

[Claims] (1) A terminal network control device connected to a subscriber terminal starts a no-ringing trunk connected to a destination station via a subscribed Tn talk line II'lJ from a center network control device connected to a calling station. The electronic computer connected to the network control device for the center is configured to call the above-mentioned η11.
,) In a central testing center device using a data transmission system that records 747 information (condolences) sent to the floor network control device, it is connected to the subscriber telephone line network specified in -1- and automatically receives a call in response to a light from the subscriber telephone. (1) means for receiving a test request by dial signal from the subscriber telephone; and (2) a terminal network control device connected to the subscriber terminal that activates the no-ringing 1-rank in accordance with the test request; A means for calling the I,':+ terminal and setting up a line between the terminal and the detailed control device, and a means for using this line to execute a test based on the above test request and recording the test results. A centralized test center device comprising means for automatically calling the subscriber telephone that has made the test request and transmitting information based on the test results by voice synthesis.