JPS6337549B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an abnormality reporting device that automatically reports abnormality information or security mode information to a monitoring station, that is, a security headquarters, using a telephone line.

With conventional abnormality reporting devices, when an abnormality occurs, such as when a fire breaks out, a thief breaks in, or other abnormalities, the abnormality information is not transmitted if the telephone on the subscriber side to which the abnormality notification device is installed is busy. could not be promptly reported to the security headquarters. Therefore, with conventional abnormality notification devices, if an abnormal situation occurs during a call, especially if a fire breaks out or if an emergency button is pressed, the abnormality notification must be put on hold until the telephone line is released. There is a possibility that the damage will increase during this time. There was also a risk that the perpetrator could cause damage by intentionally keeping the line in use with the intention of hindering reporting, and then committing acts of harm during that time.

The present invention is proposed to solve the above-mentioned problems, and its purpose is to provide an abnormality reporting device that automatically reports abnormality information or security mode information to a security headquarters using a telephone line. To enable call request information to be reported to the security headquarters even if the telephone line is busy at the time of a call request, and to enable prompt and reliable reporting of the call request information to the security headquarters. .

In order to achieve this object, the present invention provides a busy detection means, a means for detecting call request information, a means for forcibly opening a line in response to detection of call request information, and a means for forcibly opening a line in response to detection of call request information. automatic calling means for sending a calling signal to the monitoring station through a line opened to the
An abnormality reporting device is provided which reports the detected call request information to a monitoring station through the telephone line when call request information is detected. A call request information detection means, a means for transmitting a voice message to notify the called party of a call request, and a means for forcibly opening a line after transmitting the voice message in response to detection of the call request information. , automatic calling means for sending a calling signal to the monitoring station through the forcibly opened line, and when call request information is detected, the detected call request information is transmitted to the monitoring station through the telephone line. An abnormality reporting device is provided that is configured to report to.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention. In the same figure, the abnormality notification device according to the present invention includes a detection means 1 which is a call request information means for detecting an abnormality such as a security mode setting and a fire or an intrusion, and a determination and activation signal based on a signal from the sensing means 1. determination activation means 2 that sends out a signal; identification means 3 that identifies whether the line is incoming or busy when the line is empty; and sends out an activation signal; busy detection means 4 that operates if the line is busy; an incoming call signal detecting means 5 which is activated if the telephone line is inside, and an automatic calling means which forcibly opens the telephone line based on the activation signal from the identification means 3 and sends out a pulse signal to dial the security headquarters to call the security headquarters. an opening means 6, a response means 7 for encoding and transmitting the type of abnormality that has occurred in response to reversal detection by the polarity reversal detection means or a security mode set by the switching operation device 11 to the security headquarters, and an off-hook for determining the direction of the current. That is, it is constituted by polarity reversal detection means 8 that detects polarity reversal and sends out an inverted signal.

The sensing means 1 includes, for example, a switching operation device 11 that is activated by inserting and removing a predetermined card carried by the subscriber to switch between starting security or canceling the sound equipment, and a security state setting circuit 12 that reads this information and sets the security state. , and various abnormality detectors 13 that perform fire detection, intrusion detection, etc. using ultrasonic waves, infrared rays, reed switches, micro switches, etc.
a, 13b...13n and a detection circuit 1 that detects a signal from the abnormality sensor at a predetermined level or higher and sends the signal.
4a, 14b,...14n.

The operation of the abnormality reporting device of the present invention will be described in detail below.

When a predetermined card owned by a subscriber is inserted into or removed from the switching operation section 11 in the sensing means 1, the predetermined card is read by the security state setting circuit 12, and the determination section 21 and activation switch 22 in the determination activation means 2 are activated. From the signal sent by the line opening means 6 through the above, the security headquarters (not shown) knows that the location where the abnormality notification device is installed is the same as when security starts. Similarly, in the case of security release, the sound equipment headquarters learns from the signal sent when the card is inserted or removed that security is being released at the installation location. However, in the case of a fire or an emergency report, the determination section 21 of the determination activation means 2 operates even when security is being released, and can report an abnormality to the security headquarters. Furthermore, the determination unit 21 is configured not to output a start signal to the start switch 22 when detecting an intrusion while security is being released.

First, we will discuss the operation when an abnormal situation occurs while the telephone line is empty. For example, the abnormality sensor 13a, 1 of the sensing means 1 that detects an intrusion
When an abnormality is detected in any of 3b...13n, a signal is sent to the determination activation means 2, which determines whether the security is in the security period or the security is being released.If it is in the sound preparation period, a high level signal is sent from the activation switch 22. is the identification means 3
is sent to one input of each of the AND gates G ₂ and G ₃ . On the other hand, since the telephone lines L ₁ and L ₂ are empty, the relay OH of the busy detection means 4 and the relay RG of the incoming signal detection means 5 do not operate, and therefore the two AND gates G ₁ of the identification means 3 do not operate. All inputs are at high level, and their outputs are also at high level.
Therefore, the two inputs of AND gate _G3 are both at high level, and its output is also at high level, but AND gate _G2 has an inverter 31 inserted between one input and the output of AND gate _G1 . Therefore, the output will be at a low level and will not be output. The high level output of AND gate _G3 activates the dial pulse generation circuit 61 of the line opening means 6, and the line closing relay A, dial pulse relay DI, and shunt relay DS are activated, and the contacts of relay A are activated.
DC closed loop is established by turning on a ₁ , a ₂ , contact di of relay DI, and contact ds of relay DS.
L ₁ -a ₁ -di-ds-a ₂ -L ₂ is formed. Thereafter, a predetermined dial pulse signal (for example, the telephone number of the security headquarters) stored in advance by the dial pulse generation circuit 61 is transmitted to the dial pulse relay.
By activating contact di of DI, the security headquarters is dialed through the DC closed loop. In response to this dial pulse signal from the security headquarters, the polarity reversal detection circuit 8 is activated, the contact c of the reversal relay C is switched, and at the same time, the information signal selection switch circuit 71 of the response means 7 is activated, and the polarity reversal detection circuit 8 is activated in response to this dial pulse signal. Various kinds of coded abnormality information are transmitted to the telephone line L ₁ , by a combination of signals corresponding to the types of abnormalities of the abnormality detector stored in the signal generating circuit.
It is sent to the security headquarters through _L2 , and the security headquarters knows the type of abnormality that has occurred. Thereafter, the contact c of the reversing relay C is restored and the DC closed loop is opened.

Next, the operation when telephone lines L ₁ and L ₂ are busy will be explained.
As described above, when the abnormality sensor of the sensing means 1 detects an abnormality, the determination activation means 2 sends a high-level activation signal to the identification means 3. Busy detection means 4
Since relay OH is busy, its contact oh
is turned on and one input of AND gate G ₁ of identification means 3 becomes a low level, but since the incoming signal detection means 5 is not operating, its contact rg is turned off and the other input of AND gate G ₁ becomes a high level. becomes. Therefore, the output of the AND gate _G1 of the identification means 3 becomes a low level, and the inverter 31 is connected between one input of the AND gate _G2 and the output of the AND gate _G1 .
is inserted, both of the two inputs of AND gate _G2 will be at high level, and its output will also be at high level. On the other hand, the two inputs of AND gate _G3 are at low level and high level, respectively, and its output is at low level and does not output. Timer 6 of line release means 6 due to high level output of AND gate G ₂
2 is activated, and at the same time, line closing relay A is activated.
The timer 62 is for stopping the operation of the dial pulse relay DI for a certain period of time, for example, 3 seconds or more, and when the relay DI is turned off and the relay A is turned on for a certain period of time, the busy line is released. The dial pulse relay DI and shunt relay DS are set to turn on after the operation of the timer 62 is completed, and after this time has elapsed, the DC closing loop L ₁ - contact a ₁ - contact di - contact ds - contact a ₂ - L ₂ is formed, a dial pulse signal is sent to the security headquarters by the contact di of the relay DI, and the subsequent operation is the same as that described above.

FIG. 2 is a diagram showing an abnormality notification device as another embodiment of the present invention, in which a voice message sending circuit 9
is inserted between the line opening means 6 and the contact c of the relay C. The voice message sending circuit 9 turns on at the same time as the line closing relay A turns on, and automatically sends a voice message to the called party for a predetermined period to inform that an abnormality has occurred, and then relays the message for a certain period of time, for example, 3 seconds or more. A is turned on and relay DI does not operate, in this case the busy line is released, and then the contact
When _a1 is switched, the dial pulse relay DI is activated and its contact di sends a dial pulse signal to the security headquarters. As a result, the called party receives the voice message without being suddenly interrupted and knows that an abnormality has occurred and that the call has been interrupted.

In the embodiment of the present invention, a busy telephone line will be forcibly opened, but it goes without saying that such an operation is premised on being permitted by the system. . Further, in the embodiments, a dial system is described, but it goes without saying that the invention is also applicable to a push phone system. Furthermore, although the call request information is described as security mode information and abnormality information, it may be only security mode information or abnormality information. Further, although the response means 7 encodes and sends the call request information to the security headquarters, it is also possible to send a voice message. Furthermore, although the response means 7 is activated by polarity reversal, the response means 7 may be activated by transmitting a response signal from the security headquarters and detecting this signal.

According to the present invention, the occurrence of an abnormality can be reported to the security headquarters even when the line is busy, which improves the security level and eliminates the risk of causing damage by intentionally keeping the line busy. It is also effective for disaster prevention.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an abnormality reporting device as one embodiment of the present invention, and FIG. 2 is a block diagram showing an abnormality reporting device as another embodiment of the present invention. Explanation of symbols: 1...Sensing means, 11...Switching operation device, 12...Security state setting circuit, 13a to 13n...
Abnormality detector, 14a to 14n...detection circuit, 2...judgment starting means, 21...judgment unit, 22...starting switch, 3...identification means, 31...inverter, _G1 , _G2 ,
_G3 ...and gate, 4,41...busy detection means,
5, 51... Incoming signal detection means, 6... Line opening means, 61... Dial pulse generation circuit, 62... Timer, A... Line closing relay, DI... Dial pulse relay, DS... Shunt relay, 7... Response means,
71... Information signal selection switch circuit, 72... Signal generation circuit, 8... Polarity reversal detection circuit.

Claims (1)

[Scope of Claims] 1. An abnormality reporting device that uses a telephone line to report call request information such as abnormality information and security mode information to a monitoring station, comprising a busy detection means for detecting when the telephone line is busy; , a detecting means for detecting the call request information, a line closing means for closing the line, a dial pulse generating means for calling the monitoring station, and a switching means for switching the line closing means to the abnormality notification device side for a certain period of time. and a timer for stopping the dial pulse from the dial pulse generating means, and a line release means for forcibly releasing the busy line in response to the call request information, When the call request information is detected even when the call request information is detected, the busy line is forcibly opened, and the call request information is reported to the monitoring station by connecting the line to the monitoring station. Abnormality reporting device. 2. An abnormality reporting device that uses a telephone line to report call request information such as abnormality information and security mode information to a monitoring station, comprising a busy detection means for detecting when the telephone line is busy; and a busy detection means for detecting the call request information. a voice message sending means for notifying the called party of the call request information before the line is opened; a line closing means for closing the line; and a dial pulse generating means for calling the monitoring station. and a timer for activating the voice message sending means for a predetermined period of time, and after the elapse of the predetermined period of time, switching the line closing means to the abnormality reporting device side for a predetermined period of time and stopping the dial pulse from the dial pulse generating means. and a line release means for forcibly releasing the busy line in response to the call request information, and when the call request information is detected even if the call request information is busy, the busy line is released after sending a voice message. 1. An abnormality reporting device, characterized in that, after the abnormality reporting device is forcibly opened, the calling request information is reported to the monitoring station by connecting a line to the monitoring station.