JPH0380698A - Communication control device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention can be used in a management system for LPG, etc., to report emergency information such as a gas leak from each household to a center via a telephone line, or to send information from the center to the center. The present invention relates to a communication control device that can perform interruptions, request for meter readings, etc., and perform bidirectional control.

Conventional technology Conventionally, this type of communication control device temporarily stores report data transmitted from a terminal in each home using a telephone line in a buffer memory, and after disconnecting the line with the terminal, stores the report data in the buffer memory. The stored report data is transmitted to the host computer or transferred to the host computer under command control of the host computer.

Problems to be Solved by the Invention However, the conventional communication control device described above has a problem in that it is not possible to perform no-ringing control in which a host computer communicates with a terminal in real time.

The present invention solves these conventional problems, and enables no-ringing control such as center shutdown and meter reading request for terminals to be performed in real time by operation of a host computer. It is an object of the present invention to provide a communication control device that can receive outgoing report data.

Means for Solving the Problems In order to achieve the above object, the present invention controls incoming calls from a terminal over a telephone line when emergency information such as a gas leak occurs in each household, and receives report data transmitted from the terminal. an incoming line control means, a no-ringing line control means for automatically dialing a terminal from a no-ringing line set for outgoing calls, and performing no-ringing control such as center cutoff and meter reading request; storage means for buffering received report data; interface means for interfacing with the host computer; no-ringing control of the host computer; and receiving line control means for receiving no-ringing communication and report data transmitted from the terminal when a call is received from the terminal; The apparatus is equipped with a call processing control means for selectively controlling each of the above means so that each or both of them can be performed at the same time.

Therefore, according to the present invention, the call processing control means controls the no-ringing line control means by command control from the host computer via the interface means, and the no-ringing line control means controls the no-ringing line set in advance for outgoing calls. No-ringing control is performed by automatically dialing from the line, and the call processing control means transfers response data from the terminal to the host computer under control of the interface means. On the other hand, when the incoming line control means detects an incoming call from another terminal using another line, the call processing control means controls the incoming line control means based on the detection information to make it receive the report data originating from the terminal, thereby preventing no-ringing. If the control is in progress, the call processing control means buffers the report data in the storage means, and after no-ringing control, the call processing control means buffers the report data in the storage means by controlling the command from the host computer via the interface means. The notification data is transferred to the host computer under the control of the interface means, and if no-ringing control is not in progress, the report data is transferred to the host computer under the control of the interface means.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic block diagram of essential parts of a communication control device in an embodiment of the present invention.

In FIG. 1, LAS LB is an incoming line control means, which controls incoming calls from a terminal, and receives notification data from the terminal if there is an incoming call. Reference numeral 2 denotes a no-ringing line control means, which performs automatic dialing and performs no-ringing control such as center cutoff and meter reading request. 3
is a storage means, which buffers the report data from the terminals received by the incoming line control means 1a, lb. 4 is an interface ([/F) means with the host computer 30 (see Figure 12), 5 is a call processing control means, which is connected to the incoming line control means la, lb and the no-ringing line control means 2 by a data bus 6; It is connected to the storage means 3 by an address bus and a data bus 7, and connected to the interface means 4 by a data bus 8, and each means 1a, lb, 2.
3.4. That is, the host computer 30
controls the no-ringing line control means 2, and transmits response data from the terminal to the host computer 3.
0, and upon reception by the incoming line control means 1a, lb, if no-ringing control is in progress, the interface means 4 is controlled to buffer the notification data in the storage means 3, and when no-ringing control is in progress, If not, the interface means 4 is controlled to transfer the report data to the host computer 30, and the interface means is controlled to transfer the report data buffered in the storage means 3 to the host computer 30 under the control of the host computer 30. 4-0 FIG. 2 is a circuit configuration diagram of the above embodiment.

As shown in FIG. 2, the microcomputer serving as the incoming line control means 1as1b is composed of a control section 11 and an input/output section 12, and the input/output section 12 is connected to N CU (Network Control U
nit: network control device) 15 and LED (light emitting diode) 16.

The microcomputer which is the no-ringing line control means 2 is composed of a no-ringing line control section 17 and an input/output section 18, and is connected to the NCU 22 by a bus 19, 20, 21.
, the no-ringing circuit 23, and the L E D 2'4. The microcomputer serving as the call processing control means 5 includes a call processing control section 25, an interface control section 26,
Consists of a memory control section 27 and a human output section 28,
The input/output unit 28 is connected to the input/output units 11.11.18 of the microcomputers la, lb, 2 via the data bus 6, and is connected to the storage means 3 via the address bus and data bus 7.
o29a129b129c is connected to the memory which is the memory, and is connected to the R3-232C interface which is the interface means 4 via the data bus 8.
ISL2) and is connected to this device on the center side. 3o is a host computer, R3-2 of this device
R3-232C cable 3 to 32C interface 4
1. 32 is a power source for this device.

The operation of the above configuration will be described below.

First, we will explain the no-ringing line control operation in Figure 3 (a).
This will be explained with reference to the flowchart shown in ).

R3-2320 interface (interface means)
4 receives a no-ringing command from the host computer 30 via the R3-232C cable 31 (step 41), and sends it to the human output unit 28 of the microcomputer (call processing control means) 5 via the data bus 8. Based on this, the call processing control section 25 of the microcomputer 5 sends the no-ringing information from the human output section 28 to the human output section 18 of the microcomputer (no-ringing line control means) 2 via the data bus 6 (step 42). Based on this, the no-ringing line control section 17 of the microcomputer 2 connects the NCU via the bus 19.
19, captures any of the office lines 29a to 29C, automatically dials and makes a call, lights up the LED 24 via the bus 21, and thereafter controls the no-ringing circuit 23 via the bus 20 to communicate with the terminal. No-ringing control is performed (step 43). Here, when the terminal receives the data, the no-ringing circuit is started, and the microcomputer 2 receives the response data from the terminal at the input/output section 18 and outputs the data from the microcomputer (call processing control means) 5 via the data bus 6. 28 (step 44).

The interface control unit 26 of the microcomputer 5 transfers the response data from the human output unit 28 to the R3-232C interface 4 via the data bus 8 (Step 45), and the R5-232C interface 4 transfers the data to the R3-23C interface 4.
The response data is transferred to the host computer 30 via the 2G cable 31 (step 46).

Next, the incoming line control operation will be explained with reference to the flowchart shown in FIG. 3 (bl).

The NCU 15 reports the incoming call status from the terminal to the microcomputer (incoming line control means) 1a1 via the data bus 13.
Or if it is sent to the input/output section 11 of 1b, the control section 12
detects this and transfers it from the input/output section 11 to the input/output section 28 of the microcomputer (call processing control means) 5 via the data bus 6 (step 52).

When the call processing control section 25 of the microcomputer 5 obtains the information from the human output section 28, the information for capturing the line is immediately transmitted from the input/output section 28 to the input/output section of the microcomputer LAS or 1b on the line side via the data bus 6. 12. Based on this, the line control section 11
A signal is sent from the bus 14 to the LED for line capture.
16, and the NCU 15 via the bus 13.
to capture the line. As a result, the line control unit 11 receives notification data from the terminal via the NCU 15, bus 13, and input/output unit 12, and transfers this notification data to the data bus 6.
The data is sent to the input/output unit 28 of the microcomputer 5 via. The call processing control section 25 of the microcomputer 5 obtains this information, and if no-ringing communication is in progress as described above (step 53), the call processing control section 25 of the microcomputer 5 sends a message from the memory control section 27 to the designated address of the memory 3 via the address bus and the data bus 7. Buffer the report data from the terminal (Step 5)
4.55). And R8-232C interface (
Interface means) 4 is R3-232C cable 3
When a command is received from the host computer computer 30 via the microcomputer 1, it is sent to the input/output unit 28 of the microcomputer 5 via the data bus 8. Based on this, the memory control section 27 of the microcomputer 5 reads the notification data from the terminal buffered in the memory 3 via the address bus and the data bus 7, and sends the notification data from the input/output section 28 via the data bus 8 to the R3- The data is transferred to the host computer 30 via the R3-232C cable 31 (step 57). On the other hand, as described above, the call processing control section 25 of the microcomputer 5
When receiving report data from the terminal, if no-ringing communication is in progress (step 53), the interface control unit 26 controls the R3-232C interface 4 via the data bus 8 (step 56), and the R3-232C
The notification data from the terminal is transferred to the host computer 30 via the cable 31 (step 57).

Effects of the Invention As described above, according to the present invention, the call processing control means controls the no-ringing line control means by command control from the host computer via the interface means, and the no-ringing line control means is configured in advance for calling. No-ringing control is performed by automatically dialing from the set no-ringing line, and the call processing control means transfers response data from the terminal to the host computer under control of the interface means. On the other hand, when the incoming line control means detects an incoming call from another terminal using another line, the call processing control means controls the incoming line control means based on the detection information to cause the incoming call to receive notification data that has not yet been sent. If no-ringing control is in progress, the notification data is buffered in the storage means, and after no-ringing control,
By command control from the host computer via the interface means, the two-call processing control means transfers the report data buffered in the storage means to the host computer under the control of the interface means, and if no-ringing control is not in progress, the report data is is transferred to the host computer under the control of the interface means. Therefore, by operating the host computer, no-ringing control such as center shutdown and meter reading request can be performed on the terminal in real time, and it is also possible to receive notification data that has not yet been transmitted through other lines.

[Brief explanation of drawings]

1 and 2 show a communication control device according to an embodiment of the present invention, FIG. 1 is a schematic block diagram of the main part, FIG. 2 is a circuit configuration diagram thereof, and FIG. FIG. 3 is a flowchart for explaining the no-ringing line control operation according to an example (bl is a flowchart for explaining the incoming line control operation according to the above embodiment. - No-ringing line control means (microcomputer), 3... Storage means, 4... Interface means (RS-232C interface), 5... Call processing control means (microcomputer).

Claims (1)

[Claims] An incoming line control means that controls incoming calls from the terminal over the telephone line when emergency information occurs such as a gas leak in each home, and receives notification data sent from the terminal, and automatically connects the terminal from the no-ringing line set for outgoing calls. a no-ringing line control means for dialing and performing no-ringing control such as center cutoff and meter reading request; a storage means for buffering report data received by the incoming line control means; an interface means for interfacing with the host computer; When the host computer performs no-ringing control and the incoming line control means receives a call from the terminal, each of the above-mentioned means is selectively controlled so that no-ringing communication and reception of report data transmitted from the terminal are performed respectively, or both can be performed simultaneously. A communication control device equipped with call processing control means.