JPH0731357Y2 - Alarm device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention shares a telephone line with a transmission device such as a multifunctional telephone (a telephone having a hold button) or a facsimile device to detect abnormality information, security mode information, and the like. The present invention relates to an alarm device that automatically reports security information to a monitoring station, that is, a security headquarters.

[Conventional technology and problems to be solved by the invention]

As a conventional alarm device, as shown in Japanese Patent Publication No. 63-37549, the security mode information and the abnormality information are forcibly used even when the telephone line for transmitting and receiving a signal between the alarm device and the monitoring station is in use. There is an abnormality notification device that opens the call information and sends the call information. In recent years, transmission devices such as a facsimile machine and a controller in a telemeter system have become widespread. In such a case, the alarm device sends abnormal information to the monitoring station by using the telephone line when there is an abnormality in the unattended state at night, but in the daytime, when the person is in a manned state, the telephone line is used to send the abnormal information. do not use. Facsimile machines, on the other hand, are especially actively used in manned states. Therefore, these use time zones are rarely overlapped, and in order to effectively use the telephone line, the telephone line may be shared for transmitting abnormal information from the alarm device and for the facsimile device. By the way, if such a telephone line is shared, and if all the calling information from the alarm device is sent at the time of calling as described above,
For example, when the facsimile device is in the "unmanned" state, that is, when the "security state" is being received, the facsimile device stops receiving and the information after the reception is interrupted cannot be obtained, which hinders the business of the next day. It will come.

Further, in order to eliminate the above-mentioned drawbacks, even if there is a call request, if the use of the telephone line waits until the reception by the facsimile device is completed, it is not possible to immediately send abnormal information with high urgency and security accuracy, That is, there is a problem that responsiveness decreases.

Furthermore, in the case of a multi-function telephone with a hold button, if the security system is left unattended while it is on hold, the security start signal cannot be sent to the security headquarters even if the last person performs the security start operation, and a blank space occurs in the security. There is a problem that the security accuracy is reduced.

The present invention solves the above-mentioned contradictory conventional problems caused by sharing a telephone line. In particular, the call request information is given a priority and the one with a low priority is temporarily suspended. However, the present invention is to provide an alarm device that is not terminated and does not cause a circuit change in an existing facsimile device or the like.

[Means and Solutions for Solving the Problems]

According to the present invention, in an alarm device that shares a telephone line with other communication devices and reports various alarm information to a monitoring station, an abnormal signal is input to generate a call request signal for abnormal information, and a security mode setting signal is generated. Input means for generating a call request signal of security mode information; line use detecting means for generating a line status signal indicating whether or not the other communication device is using the telephone line; Identification means for inputting a call request signal and a line status signal, and generating a start signal according to the security information corresponding to the input call request signal and the line use status of the other communication device; On the basis of the above, the automatic communication means for temporarily releasing the other communication device from the telephone line to notify the monitoring station of the security information corresponding to the call request signal, and the priority means for the identification means. To provide .

And when using the telephone line by the other communication device,
When the identification means inputs a call request signal of security information of high urgency, the priority means immediately supplies a start signal to the automatic call means, and the identification means sends a call request signal of security information of low urgency. When inputting, the priority means sets a predetermined waiting time, and when the telephone line is used during this waiting time, the activation signal is not supplied to the automatic calling means,
After the waiting time, the activation signal is immediately supplied to the automatic calling means even if the telephone line is used.

Further, the priority means may be configured such that a predetermined waiting time is set for the security mode information among the security information.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
The drawing is a circuit diagram showing an embodiment of the present invention. In the figure, the alarm device according to the present invention comprises a mode setting means 10 for setting a security mode, a sensing means 1 for sensing an abnormality such as a fire or an intrusion, each of the sensing means 1 and each abnormality from the security mode setting means. A signal, a determination unit 21 that performs abnormality detection determination or determination of mode setting change based on the security mode setting signal,
Start switch circuits 22 and 23 that send judgment signals and start signals
And determination gate 2 consisting of an OR gate G ₁ and a telephone line
Identification means 3 for identifying whether L ₁ and L ₂ are empty or in use (including calling and busy) and transmitting a start signal, telephone lines L ₁ and L ₂
If it is in use, priority means 4 for determining whether to preferentially send a signal or to wait, line use detection means 5 for detecting whether or not the telephone lines L ₁ and L ₂ are in use, the above identification means Switching between the line opening means 6 and the mode setting means 10 for calling the security headquarters by forcibly opening the telephone lines L ₁ and L ₂ based on the activation signal from 3 and sending a dial pulse signal to the security headquarters A response means 7 for encoding and transmitting the security mode set by the operation unit 110 to the security headquarters, and a change in the direction of the communication signal current of the telephone line due to the on-hook, that is, the inversion of the polarity is detected and an inversion signal is transmitted. An automatic calling means 60 having a polarity reversal detection means 8 and a multifunctional telephone having a hold button connected to the same telephone line, a facsimile machine, and a transmission device 9 for transmitting a meter reading value of a meter reading system. That.

The determination activation means 2, the identification means 3, and the priority means 4 in this embodiment may be configured by using a microprocessor, or may be other means as appropriate.

The mode setting means 10 is, for example, a switching operation device 110 that operates switching of security start or security release by inserting and removing a predetermined card possessed by a subscriber, and a security state setting circuit that reads this information and sets a security state. It is composed of 120 and. The sensing means 1 detects various kinds of abnormality detectors 13a to 13n that detect ultrasonic waves, infrared rays, fires or intrusions using a reed switch, a micro switch or the like, and outputs a signal of a predetermined level or more. It is composed of detection circuits 14a to 14n that detect and send an abnormal signal.

The operation of the alarm device of the present invention will be described in detail below. A security status setting circuit 120 is provided when a predetermined card possessed by a subscriber is inserted into or removed from the switching operation device 110 of the mode setting means 10.
A predetermined card is read by, and the signal sent through the line opening means 6 and the response means 7 via the determination section 21 and the first activation switch 22 in the determination activation means 2 causes
The security headquarters (not shown) knows that the place where the alarm device is attached has started security. Similarly, in the case of releasing the security, the security headquarters knows from the security mode setting signal transmitted by the mode setting means 10 when the card is inserted or removed that the installation place is in the security release state.
However, in the case of a fire and an emergency call, the determination unit 21 of the determination activation means 2 operates even when the security is being released, and an abnormality can be reported to the security headquarters. Further, in the determination unit 21,
Based on the security mode setting signal from the mode setting means 10, even if the intrusion detection detector detects an intrusion while the security is released, the intrusion detection does not output the activation signal to the first activation switch 22.

First, the operation when an abnormal situation occurs when the telephone line is empty will be described.

For example, the abnormality detectors 13a to 1a of the detecting means 1 for detecting intrusion
When an abnormality is detected by any of 3n, an abnormality signal is sent to the determination activation means 2, and after determining whether it is during the security time or the security release, if it is during the security time, the first start switch 22
A high level call request signal is sent through the OR gate G ₁ and the identification means 3
In addition to being sent to one input of each of the AND gates G ₂ and G ₃ therein, it is also sent to the drive circuit 52 of the second line use detecting means 5b forming a part of the line use detecting means 5. Therefore, the drive circuit 52 turns on the relay B and the line use detection means 5
The contact b provided in the first line use detecting means 5 which constitutes a part of the above is opened (broken line state in the drawing). On the other hand, since the telephone lines L ₁ and L ₂ are empty, the contacts a ₁ , a ₂ , ds and di are in the state shown by the broken lines in the drawing, and the first line use detecting means 5a
A high level line use state signal is input to the discriminating circuit 32 of the discriminating means 3 from a photocoupler 51 composed of photodiodes corresponding to the LEDs 1 and 2 and Where photo coupler 51
Are provided with LEDs 1 and LED2 in opposite directions so that they can operate regardless of voltage application of either polarity. The output of the discrimination circuit 32 also becomes high level. Therefore, the two inputs of the AND gate G ₃ both become high level and its output also becomes high level, but since the inverter 31 is inserted between the AND gate G ₂ and the output of the discrimination circuit 32, the output thereof becomes low. It becomes a level and is not output.

The circuit 6 is opened by the high level output of the AND gate G _3.
The dial palace generation circuit 61 of the above operates, and the circuit closing relay A, the dial pulse relay DI, and the shunt relay DS
Are activated, the contacts a ₁ and a _{2 of} the relay A, the contacts di of the relay DI,
By closing the contact ds of the relay DS and the relay DS as shown by the solid line in the drawing, a DC closed loop L _1- a _1- di-ds-a ₂ -L ₂ is formed. These relay contacts a ₁ , a ₂ , di, ds are contacts that close when the relay is on. When the alarm device sends out information, a DC closed loop is thus formed. After that, a predetermined dial pulse signal (for example, a telephone number of the security headquarters) stored in advance by the dial pulse generation circuit 61 turns on / off the contact di of the dial pulse relay DI, thereby passing through the DC closed loop. The security headquarters is dialed. When the guard headquarters responds to this dial pulse signal, the polarity reversal detection circuit 8
Operates to drive the relay C via the information signal selection switch circuit 71, the contact c of the reversing relay C is switched as shown by the broken line in the figure, and at the same time, the information signal selection switch circuit 71 of the response means 7 is operated. Then, various coded abnormality information by a combination of signals corresponding to the type of abnormality of the abnormality detector stored in advance in the signal generation circuit 72 is transmitted through the telephone lines L ₁ and L ₂ to the security headquarters. The security headquarters knows the type of abnormality that has occurred. After that, the contact c of the reversing relay C is restored as shown by the solid line in the figure,
The DC closed loop is opened.

Next, the operation of the telephone lines L ₁ and L ₂ in use will be described.

As described above, when the abnormality detector of the sensing means 1 senses an abnormality, the determination activation means 2 sends a high level call request signal to the identification means 3. Since the drive circuit 52 of the second line use detecting means 5b is driven, when the relay B is turned on and the relay B is turned off, the contact b which is closed as shown in the drawing is opened as shown by the broken line in the drawing. Therefore, a low level line use status signal is sent from the photocoupler 51 to the discrimination circuit 32 of the discrimination means 3. The output of the discrimination circuit 32 becomes low level. In this case, since the inverter 31 is inserted, the two inputs of the AND gate G ₂ both become high level and its output also becomes high level. Whereas the two inputs becomes respectively low and high level output of the AND gate G ₃ are not output a high level signal becomes a low level. Due to the high level output of the AND gate G ₂ , one input of the AND gates G ₄ and G ₅ in the priority means 4 becomes high level. Here, the call request signal is based on the signal from the sensing means 1, and only the AND gate G ₄ outputs a high level. Therefore, the timer 62 of the line opening means 6 is activated, and at the same time, the 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. When the relay DI is off and the relay A is on for a certain period of time, the busy line is opened. After the operation of timer 62 ends, dial pulse relay DI and shunt relay DS
Is set to turn on, and after this time
DC closed loop L ₁ − Contact a ₁ − Contact di − Contact ds − Contact a ₂ −
L ₂ is formed, and the dial pulse signal is sent to the security headquarters by turning on / off the contact di of the relay DI, and the subsequent operation is the same as that described above.

Next, the operation when the telephone line L ₁ or L ₂ is set to start warning during use will be described.

As described above, when the alarm start is set by the switching operation device 110 of the mode setting means 10, the security mode setting signal is sent to the determination starting means 2 via the security state setting circuit 120. The determination unit 21 determines whether or not all of the sensing means 1 are in the security system, and if the security system is not in place, for example, the intrusion sensor is turned off by opening the door or opening the window. In such a case, that effect is displayed on a display device (not shown). Further, the security mode setting signal is sent from the mode setting means 10 to the second start switch 23, and the OR gate G ₁
Since the drive circuit 52 of the second line use detecting means 5b is driven via the relay B, the relay B is driven and the contact b is opened as shown by the broken line in the figure. Therefore, a low level line use status signal is sent from the photocoupler 51 to the discrimination circuit 32 of the discrimination means 3.
The output of the discrimination circuit 32 becomes low level, and since the inverter 31 is inserted in the same manner as described above, both of the two inputs of the AND gate G ₂ become high level and the output thereof becomes high level. On the other hand, the two inputs of the AND gate G ₃ are low level and high level, respectively, and its output is low level. The high level output of AND gate G ₂ causes one input of each of AND gates G ₄ and G ₅ to be high level. Here, the call request signal is based on the signal from the mode setting means 10 and is output only from the AND gate G ₅ . As a result, the counter circuit 41 of the priority means 4 becomes "1" and the first timer 42 is turned on. As a result, after a predetermined time has passed, the determination starting means 2
The second start switch 23 therein is turned on, and the same operation as described above is performed. At this time, if the line is still in use, the output of the AND gate G ₅ is sent to the counter circuit 41 of the priority means 4,
The counter circuit 41 becomes "0". As a result, the second timer 62 of the line opening means 6 is activated, and at the same time, the line closing relay A
Works. The subsequent operation is the same as that described above. The contact of the relay B is turned on after the security mode is sent to the security headquarters via the telephone line.

In the embodiment of the present invention, forcible opening is performed while the telephone line is in use, but it goes without saying that such an operation is premised on the system.

In addition, although the dial system is described in the embodiment, it is needless to say that the present invention is also applicable to the touch-tone system.

Although the call request information is encoded and transmitted from the response means 7 to the security headquarters, a voice message may be transmitted.

Further, the response means 7 is activated by reversing the polarity, but the response means 7 may be activated by sending a response signal from the security headquarters and detecting this signal.

[Effect of device]

According to the present invention, even if the telephone line is in use, highly urgent abnormality information can be immediately sent to the security headquarters, and the security start signal can be immediately turned off even if the facsimile apparatus is in the receiving state. Not to hinder the work of the next day. Further, even if the hold button of the multifunctional telephone is used, the guard start signal is always sent to the guard headquarters after a predetermined time, so that the blank period of guard can be shortened.

[Brief description of drawings]

The drawing is a circuit diagram of an alarm device according to an embodiment of the present invention. (Explanation of symbols) 1 ... Sensing means, 2 ... Judgment starting means, 3 ... Identification means, 4 ... Priority means, 5 (5a, 5b) ... Line use detecting means, 6 ... Line opening means, 7 ... Response means, 8 ... Polarity reversal detection means, 9 ... Transmission device, 10 ... Mode setting means.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Fumio Sato Inventor, Fumio Sato 6-11-23 Shimorenjaku, Mitaka City, Tokyo SECOM Co., Ltd. (56) Reference JP-A-1-99358 (JP, A)

Claims (2)

[Scope of utility model registration request] Claim: What is claimed is: 1. An alarm device which shares a telephone line with other communication devices and reports various security information to a monitoring station, wherein an abnormal signal is input to generate a call request signal for the abnormal information, and a security mode setting signal Activation means for generating a call request signal of the security mode information by input, line usage detection means for generating a line status signal indicating whether or not the other communication device is using the telephone line, Identification means for inputting a call request signal and the line status signal, and generating a start signal according to the security information corresponding to the input call request signal and the line usage status of the other communication device, And an automatic call means for temporarily releasing the other communication device from the telephone line based on the activation signal to notify the monitoring station of the security information corresponding to the call request signal, identification If the identification means inputs a call request signal of security information having a high degree of urgency when the other communication device is using the telephone line, the priority means sends the activation signal to the start signal. Immediately supply automatic calling means,
The priority means sets a predetermined waiting time when the identification means inputs a call request signal of security information of low urgency, and the activation signal when the telephone line is used during the waiting time. Is not supplied to the automatic calling means, and after the waiting time, the activation signal is immediately supplied to the automatic calling means even if the telephone line is used. 2. The alarm device according to claim 1, wherein the priority means sets the predetermined waiting time for the security mode information among the security information.