JPH0371297A - Transmitter for guard information - Google Patents

Abstract

PURPOSE:To improve the quality of guard monitoring service by starting an alarm display means when an abnormal state is generated during the use of a communication circuit by an external telephone set. CONSTITUTION:When a sensor 50 goes abnormal, a central processing part 40 outputs a transmission request to a transmitting/receiving part 30 to send the sensor abnormality as an alarm, but when a terminal board part 20 recognizes the occupation of a communication line 10 during the continuation of off-hook state of the external telephone set 200, the transmitting/receiving part 30 returns transmission disablement to the central processing part 40. When the central processing part 40 sends a pulse to a menace contact point making part 60, a relay 90 is driven and a menace contact point 80 is made. A rotary lamp/emergency bell part 110 for visibly and audibly displaying an alarm is started by the making of the contact 80. Consequently, the abnormal state is informed to the periphery and the external telephone set 200 can be completely set up to the on-hook state.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a security information transmitting device, in particular, which shares a communication line with a telephone for telephone calls, and transmits abnormal situations (for example, intrusion, fire, etc.) via this communication line. , gas leak, etc.) to a monitoring center receiving device.

[Conventional technology]

Conventionally, when this type of security information transmission device sends an alarm generated during security to a monitoring center via a communication line, if the communication line is being used by an external telephone, the call by the external telephone will be terminated. The configuration was such that an alarm could not be sent out until the device went on-hook.

[Problem to be solved by the invention]

The above-mentioned conventional security information transmitting device is configured such that if the communication line is being used by an external telephone, the alarm cannot be sent until the external telephone ends the call and becomes on-hook. If the handset goes off-hook after the call ends using an external telephone line, even if an alarm occurs, it cannot be sent to the monitoring center unless the handset is put back on-hook. A serious drawback is that the side cannot immediately recognize abnormal situations.

[Means to solve the problem]

The security information transmitting device of the present invention is a security information transmitting device that automatically reports abnormal situation information to a monitoring center via a communication line. It has a detection means for detecting that the line is in use, and an activation means for activating the display means when an abnormal situation occurs while the detection means detects that the line is in use.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

In FIG. 1, this embodiment includes a terminal block section 20 that connects a telephone line 10 and an external telephone 200, and detects whether or not the external telephone 200 is using the communication line 10 via the terminal block section 20. A transmitting/receiving unit 30 that immediately sends an alarm signal to the communication line 10 when it is not in use, a plurality of sensors 50 that detect abnormal situations (for example, intrusion, fire, gas leak, etc.), and a system that starts and cancels security. A security start/cancel key switch 70 to be set, a central processing unit 40 that generates an alarm signal by sensing the sensor 50, a rotating light/emergency bell unit 110 that displays the alarm visually and audibly, and a rotating light/emergency bell unit 110 that displays the alarm visually and audibly.
A relay 90 that activates the emergency bell section 110 via the intimidation contact 80, and an intimidation device that activates the relay 90 by a signal from the central processing section 40 when an abnormal situation occurs while the external telephone 200 is in use or when a call is incompletely terminated. Contact make part 60
and a reset button 100 for restoring the threatening contact making section 60.

Next, the operation of this embodiment will be explained.

Each abnormal situation (intrusion, fire, gas leak, etc.) is detected by the sensor 50, and when the security start/release switch 70 is in the start state, the central processing unit 40. The signal is sent to the monitoring center via the communication line 10 by the transmitting/receiving section 30 and the terminal block section 20 . When the guard start/cancel switch 70 is in the released state, nothing is sent out.

While on guard duty, an external telephone 200 connected via the terminal block section 20 uses the communication line 1o, and after the call ends, the handset of the external telephone 200 is mistakenly placed in an incomplete call-end state and the off-hook state continues. Suppose that In that state,
Assume that the sensor 5o is in an abnormal state. Then, the central processing unit 4o issues a transmission request to the transmitting/receiving unit 3° to transmit the sensor abnormality as an alarm, but the terminal block unit 20 recognizes that the communication line 1° is occupied by the continued off-hook state of the external telephone 200, so the transmission/reception is stopped. The unit 30 returns a message that transmission is not possible to the central processing unit 40. Then, when the central processing unit 40 sends one pulse to the threat contact making unit 60, the relay 90 is activated and makes the threat contact 8o. By making the warning contact 80, the rotating light that displays the alarm visually and audibly activates the emergency bell section 110.By activating the zero rotating light/emergency bell section 110, the surroundings are notified of the abnormal situation, and by hearing this, the external telephone 200 is activated. Can be completely on-hook.

Note that the relay 90 is restored by pressing the reset button 100 attached to the threat contact making part 6o, and the revolving light and emergency bell part 110 are also restored.

〔Effect of the invention〕

As explained above, the present invention transmits an alarm when the handset of the external telephone accidentally enters an incomplete call end state, that is, an off-hook state after the end of a call using a communication line during security guarding. By providing an activation means for activating a display means for displaying an alarm when an alarm occurs, for example, by activating a revolving light or an emergency bell as the display means, the alarm is notified to the surroundings and at the same time the external telephone is in an incomplete call termination state ( Since it is also possible to tell when the mobile phone is off-hook (off-hook state), the quality of the security monitoring service can be improved.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention. 10... Communication line, 20... Terminal block section, 30...
Transmission/reception unit, 40... Central processing unit, 50... Sensor,
60... Intimidation contact make part, 70... Security start/release key switch, 80... Intimidation contact, 90... Relay, 100... Reset button, 110... Rotating light/emergency bell part , 200...External telephone.

Claims (1)

[Claims] A security information transmitting device that automatically reports abnormal situation information to a monitoring center via a communication line, which includes a display means for displaying an alarm visually or audibly, and detects that an external telephone is using the communication line. A security information transmitting device comprising: a detection means; and an activation means for activating the display means when an abnormal situation occurs while the detection means detects the use.