JPH0525596U - Mechanical security device - Google Patents

Abstract

(57) [Summary] [Purpose] When the general subscriber telephone line is abnormal, the user is immediately notified to prevent the unguarded state of the security target. [Structure] Dial a telephone that constantly outputs a voice signal when security is started and released, output the voice from the above-mentioned phone from a speaker when line connection is confirmed, and then start and release security to a remote monitoring center Send a signal. [Effect] It is possible to check the state of the telephone line at the time of starting and canceling the security, prevent the non-security state due to the line abnormality, and improve the reliability of the machine security by taking an urgent response.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mechanical security device in which various security detectors are installed in an office or a store, and information such as security start / release signals and alarms is transmitted to a remote monitoring center through a general subscriber telephone line with an automatic dial function. In particular, the present invention relates to a mechanical security device having a function of notifying the user that the general subscriber telephone line is not available when the line is unavailable.

[0002]

[Prior Art]

 In general, mechanical security services are known in which various detectors for detecting abnormalities such as intruders and fires are installed in offices and stores, and these abnormalities are monitored at a remote monitoring center. The mechanical security device used for this mechanical security service uses a general subscriber telephone line or a dedicated line as a means of transmitting security start / release signals and alarms. In particular, the mechanical security device using the general incoming telephone line can use the telephone line installed in the office as it is, so the installation work cost can be reduced for the introduction of the mechanical security system. It is widely used because it has the advantage that the number of security lines can be reduced compared to a dedicated line, and the facility investment of security operators can be reduced.

As described above, the mechanical security device using the general subscriber telephone line has an automatic dial function, and automatically transmits the telephone number of the remote monitoring center when transmitting a security start / release signal or an alarm. When the telephone line is connected by dialing, the above signal is sent to the monitoring center. The mechanical security device has a line connection determination function for determining the line connection with the monitoring center. As a means for determining the line connection of these line connection determining functions, it is common to use the inversion of the polarity when connecting the telephone line.

In an actual machine security service, the machine security is started and released by a security switch operated by a security contractor, and an automatic dialing function is also activated accordingly. For example, when the last person to leave the office operates the security switch to the security side to start security, the mechanical security device calls the telephone number of the remote monitoring center set in advance by the automatic dial function. ..

In response to this, when the line is connected by the operation of the automatic call-receiving device of the monitoring center, the line connection determination unit of the mechanical security device determines the connection of the line and the self-identification signal of the mechanical security device and the security signal. A start signal and a start signal are transmitted to the start center, and when the transmission is completed, the line is opened and the system stands by in a guarded state.

When various detectors provided in the security target detect an abnormality after the security is started, the mechanical security device activates the automatic dial function as in the case of the security start and calls the monitoring center again, and the line is connected. The mechanical security device sends warnings indicating various abnormalities and its own identification signal to the monitoring center. When the monitoring center receives this alarm and identification signal, it displays the name of the security guard and the type of alarm on the display device of the monitoring center to take measures such as urging the security staff to notify the police or fire department. .. Also, when the security is released, the automatic dial function is activated and the release signal and the identification signal are sent to the monitoring center as in the case of starting the security.

[0007]

[Problems to be solved by the device]

 As described above, the conventional mechanical security device using the general subscriber telephone line calls a remote monitoring center for a certain period of time until the call is actually made, and once the line is not connected, the line is released once. It has a network control function (automatic dial function) that repeats dialing again. This function is effective as long as the mechanical security device and the automatic reception device of the monitoring center are normal, when the telephone line is normally available.

[0008] However, if the telephone line is cut off, it cannot be used due to the prohibition of use of the telephone line on the telecommunications carrier side due to the user's failure to pay, or the line construction on the line maintenance company side, or the use If a person changes the telephone line from a dial pulse line to a touch-tone telephone line without contacting the security company, the security center cannot receive the security start signal from the security target side, and Even if the security switch is turned on, the remote monitoring center does not display the security start indication, and even if the various detectors targeted for security detect an anomaly thereafter, the monitoring center cannot receive an alarm and the security target remains unprotected. There was a problem of being left alone.

The present invention was made in order to solve the above problems, and when the telephone line is abnormal, the user can be informed immediately and the unguarded state of the guarded object can be prevented. The purpose is to obtain a reliable mechanical security device.

[0010]

[Means for Solving the Problems]

 The mechanical security device according to the present invention stores the first telephone number of the call destination that constantly outputs a voice signal and the telephone number of the remote monitoring center, and sends the call to the call destination through the general subscriber telephone line. The network control unit that automatically dials, the line connection determination unit that determines the connection state of the general subscriber telephone line, the speaker that outputs the voice of the other party, and the network control unit that always starts and stops security When the first telephone number of the call destination outputting the voice signal is dialed and the connection of the line is confirmed, the voice of the call destination is output from the speaker, and then the network control unit controls the remote monitoring center. Control to make the network control unit dial the second telephone number of the remote monitoring center to send an alarm when the security start and release signals are transmitted by dialing the second telephone number of In which the provided.

[0011]

[Action]

 In this invention, when the line connection is confirmed by dialing the call destination that always outputs a voice signal when security is started and released, after the voice of the call destination is output from the speaker, remote monitoring is performed. Security start and release signals are sent to the center. Further, when an abnormality in the security target is detected, an alarm is transmitted to the remote monitoring center.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the structure of a mechanical security device according to this embodiment. 1 is a security switch provided near the final exit of the security target, and 2 is a security switch for starting and releasing security. This is the main unit of the mechanical security device, and the input / output unit 21 between the main unit 2 and the external connection device, the telephone number of NTT's time signal service and the telephone number of the remote monitoring center are automatically dialed to send various signals. The network control unit 22 for transmitting the information via the general subscriber telephone line, the line connection determination unit 23 for determining whether the telephone line with the NTT time signal service and the remote monitoring center is connected, and the control unit 24. ing.

Reference numeral 3 denotes a detector group including detectors 31 to 36 installed in the guarded object and detecting an abnormality such as an intrusion, a fire, or a gas leak. Reference numeral 4 is connected to the detector group 3, and a display section for displaying which detector detects an abnormality when an abnormality is detected is provided with the security switch 1 and 5 is provided with the security switch 1 and is connected to the NTT via the input / output section 21. It is a speaker that outputs the sound of the time signal service.

Next, the operation of the mechanical security device having the above configuration will be described with reference to the flowchart shown in FIG. First, the last person to be guarded operates the guard switch 1 provided at the last exit to be guarded to start guarding. In step 11, the control unit 24 determines whether or not the security switch 1 is turned on, but the security switch 1 is turned on by the security start operation to generate a security start operation signal, and the control unit 24 inputs / outputs this signal. It is input via the unit 21 and it is determined that the security switch 1 is on.

In step 12, the control unit 24 determines whether or not the detector group 3 installed in the security target is normal. If abnormal, the control unit 24 does not start security in step 13 and is provided on the security switch 1 (not shown). Perform an abnormal exit operation such as turning on the indicator light. In response to this, the last person leaving the building turns off the security switch 1 and confirms which detector of the detector group 3 in the guarded object shows an abnormality on the display unit 4. For example, if the detector 31 provided on the window indicates an abnormality, the window is closed and the security switch 1 is operated again to start security.

If the detector group 3 is not abnormal, the control unit 24 causes the network control unit 22 to dial the NTT time signal service 117 in step 14. Next, in step 15, the line connection determination unit 23 checks whether the line is connected to the NTT time signal service, and if the line is connected, a line connection confirmation signal is transmitted to the control unit 24. Upon receiving the line connection confirmation signal, the control unit 24 outputs the voice of the time signal service to the speaker 5 provided at the final exit through the input / output unit 21 in step 16. This allows the last person to confirm that there is no abnormality on the line. Then, when voice is output for a certain period of time, for example, 15 seconds, the network control unit 22 opens the line.

Next, in step 17, the control unit 24 causes the network control unit 22 to dial the telephone number of the remote monitoring center. When the line connection confirmation signal from the line connection determination unit 23 is received in Step 18, the control unit 24 causes the network control unit 22 to transmit its own identification signal and the security start signal to the monitoring center in Step 19 to open the line. Stand by with security. Upon receiving the security start signal and the identification signal, the remote monitoring center starts monitoring by displaying and printing on a monitoring CRT or printer.

In step 20, it is judged whether or not the security switch 1 is on, and if it is on, it is judged in step 21 whether or not the detector group 3 detects an abnormality. When an abnormal signal from the detector group 3 is received via the display unit 4 and the input / output unit 21, the control unit 24 causes the network control unit 22 to dial the telephone number of the remote monitoring center in step 22 and the line connection determination unit. When the line connection is confirmed by the line connection confirmation signal from 23, the network control unit 22 is caused to transmit its own identification signal and alarm signal. The remote monitoring center receives the identification signal and the alarm signal, detects what kind of abnormality occurred in which security target, and prints the alarm display on the CRT or printer to urge the security personnel to the security target. Take measures such as contacting the police, the police and the fire department.

Further, for example, when the first visitor who is to be guarded the next morning comes to operate the security switch 1 for release, the control unit 24 sends a security release operation signal of the security switch 1 via the input / output unit 21 in step 20. Then, in step 23, the network control unit 22 is made to dial the telephone number of NTT's time signal service in the same manner as at the start of security, and in step 24, the line connection confirmation unit 23 confirms the line connection within a predetermined number of times. When the signal is received, the signal is output to the speaker 5 for a certain period of time in step 25, and the network control unit 22 opens the line. In Step 26, the network control unit 22 is made to dial the telephone number of the monitoring center, and in Step 27, when the line connection confirmation signal is received from the line connection determination unit 23, in Step 28, the network control unit 22 receives its own identification signal and security. A release signal is sent to the monitoring center, and the security is released.

The operation up to now has been the operation in the state where the general subscriber telephone line is usable, but next, the case where the telephone line is not usable at the start of security will be described. In this case, in steps 15 and 29, the line connection determination unit 23 cannot confirm the connection even if the dialing for a fixed time is repeated a predetermined number of times. For this reason, the last person to leave the hall cannot hear the time signal sound from the speaker 5 and can confirm that the security has not started. The last person to leave the building operates the security switch 1 to the security release side in step 30 to notify the security company that security is not started. Upon receipt of this notification, the security company directs security personnel to the security destination and takes measures such as pursuing the cause of the line abnormality.

Next, if there is a line error at the time of releasing the security, even if the network control unit 22 is made to dial the telephone number of the NTT time signal service a predetermined number of times or more in Steps 23 and 24, the connection is not established and the user is Since the time signal service cannot be heard and the security target is not unlocked, the facility cannot enter. In this case, the user contacts the security company to request a predetermined work, and the security company who receives the contact urges the security personnel to reset the main body unit 2 and puts it in the security release state (step 31).

As described above, in the above embodiment, when the line is abnormal, the line is not connected even if the time signal service is dialed a predetermined number of times, and the time signal voice is not output to the user. Can be judged. If the line is not connected due to a line error, a message indicating that the line cannot be connected to the security switch 1 may be displayed.

[0023]

[Effect of the device]

 As described above, according to this invention, the first telephone number of the other party who constantly outputs a voice signal is dialed when security is started and released, and the voice is heard by the user. It is possible to check the line status, prevent an unguarded state due to a line error, take immediate action, and improve the reliability of machine security. In addition, since the telephone information service of a telecommunications carrier usually has three digits, the dialing time is short and the waiting time for the user can be shortened. It is also less likely that a poor line connection will occur. Furthermore, if the telephone information service is a time signal service, the user can check the time when the security is started and released.

[Brief description of drawings]

FIG. 1 is a block diagram of a mechanical security device according to the present invention.

FIG. 2 is a flowchart showing the operation of the mechanical security device according to the present invention.

[Explanation of symbols]

 1 Security Switch 3 Detector Group 5 Speaker 22 Network Control Unit 23 Line Connection Determination Unit 24 Control Unit

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[Procedure amendment]

[Submission date] September 21, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

Claims (1)

[Scope of utility model registration request] 1. A security switch for starting and canceling security, a detection means for detecting an abnormality in a security target, a first telephone number of a communication destination that constantly outputs an audio signal, and a remote monitoring center. The second telephone number is stored and the network control unit that automatically dials the call destination via the general subscriber telephone line, the line connection determination unit that determines the connection of the general subscriber telephone line, and the call destination When the connection of the line is confirmed by causing the network control unit to dial the first telephone number of the call destination that outputs the constant voice signal at the time of starting the security and releasing the security respectively After the voice of the call destination is output from the speaker, the network control unit dials the second telephone number of the remote monitoring center to transmit a security start signal and a security release signal, and detect an abnormality in the security target. Sometimes A machine security device comprising: a control unit that causes the network control unit to dial a second telephone number of the remote monitoring center and send an alarm.