JPH05327937A - Machine guarding system using public telephone line - Google Patents

Abstract

PURPOSE:To remarkably reduce the load of the controller of a machine guarding center and to surely transmit information from a machine guarding center device to a machine guarding terminal. CONSTITUTION:This machine guarding device is composed of a machine guarding center device 1, a terminal equipment 3 and a public telephone network 2 connecting both of them. The machine guarding center device 1 is composed of a PBX 11, a talkie device 12, a terminal for control 13, an APT 14, and a security server 15. The terminal equipment 3 is composed of a network control device 4, a machine guarding terminal 5 and a telephone set 6. The network control device 4 is composed of an identification signal detection circuit 40, a hook state detection circuit 41, a calling signal detection circuit 42, a current detector 43 and a switching device 44. Further, the machine guarding terminal 5 is composed of an alarm display output circuit 51 and a signal transmitter 52, is provided with an automatic telephone using the talkie device and further calls from the machine guarding terminal to the machine guarding center device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machine using a public telephone line for protecting an abnormality such as a fire or an intrusion by installing a machine security terminal connected to a terminal device through a public telephone line from a machine security center. It concerns security methods.

[0002]

2. Description of the Related Art A conventional device of this type is disclosed in JP-A-58-5326.
There is one disclosed in Japanese Patent No. This technique is a data transmission device that performs data transmission using a general public telephone line. FIG. 4 shows an example of a mechanical security system according to the related art.
The network control device 306 has a polarity reversing circuit 307 that determines the polarity of the direct current of the telephone line 302, a time limit circuit 309 that is activated by the inversion detection output of this polarity determination circuit 307, and an off-hook detection circuit 30 that detects an off-hook of the telephone 304.
8 and the output of the off-hook detection circuit 308 from the output of the off-hook detection circuit 308 until a predetermined time elapses after the time limit circuit 309 is activated.
When the off-hook state of No. 4 is continuously detected, the switch circuit 312 is controlled so as to be connected to the machine security terminal 305 or the like.

In this data transmission system, when the terminal device 303 is called from the machine security center device 301, the terminal device 303 is a machine that does not go off-hook when the telephone 304 on the terminal side is not off-hook within the time set by the time limit circuit. It is determined that the call is from the security center device 301, the telephone line 302 is captured, that is, an automatic call is received and communication with the machine security terminal 305 is started.

In the mechanical security industry, the mechanical security center device 3
01, the security time is registered in advance for each target machine security terminal 305, and the fire signal and other emergency signals are received using the public telephone line 302 and the terminal device 303,
During this time, mechanical security measures such as fire and intrusion of suspicious persons are being carried out. For example, in the case of an office, the security time is from the time the last person leaves the field until the day the first person enters the office the day after.

Here, if the signal indicating that the last exiting person has left the machine has not been transmitted from the machine security terminal 305 to the machine security center device 301 even at the security start time registered in advance, the machine security center 305 A terminal device 303 in which a machine guard terminal 305 corresponding to the controller of the device 301 is installed
Call. If the other party responds, confirm whether to leave or extend the leaving time. If the other party does not respond, the machine security terminal 305 sends a signal to the machine security center apparatus 301 that the last participant has left. Confirm by phone until several times.

If the other party does not respond even after making a phone call several times, a signal is sent from the machine security center device 301 to the corresponding machine security terminal 305, and the machine security terminal 305 receiving the signal sends an error. The alarm is output by the alarm display, buzzer, etc., and the situation is confirmed by instructing the guard to dispatch to the site where the corresponding machine security terminal 305 is installed.
As described above, if the machine security start signal is not sent from the terminal device to the machine security center device by the pre-registered time, the controller of the machine security center can manually check using the telephone line. It is being appreciated.

[0007]

However, in the data transfer method described above, when a non-telephone terminal such as an answering machine or a FAX is connected as the telephone 304 of the terminal 303, the terminal 303 becomes a machine. Security center device 30
Since the call from 1 is answered, there is a case where the condition of not being off-hook within a certain period of time, which is the condition for capturing the public telephone line 302, does not hold, and the machine security terminal 305 of the terminal device 303 becomes the machine security center device 301. There was a problem that data could not be transmitted without being connected. Further, the method of outputting the identification signal (the signal indicating the machine security center apparatus) from the machine security center apparatus 301 also has a problem that the terminal device 305 makes an erroneous call.

As described above, the controller of the machine security center conducts confirmation by human power, and the controller load is extremely large. In addition, the controller of the machine security center corresponds to the machine security center. Even if a signal is sent to the machine security terminal 305 and an alarm is output from the machine security terminal 305 which has received the signal by an alarm display or a buzzer, as described above, the machine security terminal (data terminal device). ) There is a problem that the data transmission cannot be performed because the 305 is not connected to the machine security center device 301.

The present invention has been made in view of the above points, and eliminates the above-mentioned problems and provides a public telephone line capable of labor saving confirmation and reliable transmission of information from a machine security center device to a machine security terminal. The purpose is to provide the mechanical security system used.

[0010]

In order to solve the above problems, according to the present invention, as shown in FIG. 1, a security start signal corresponding to a security start time registered in advance in the machine security center device 1 is a mechanical security signal. When no data is transmitted from the terminal 5 to the machine security center apparatus 1, the machine security center apparatus 1 is provided with a means for automatically confirming a telephone call to the corresponding machine security terminal 5. At that time, when the other party responds with the telephone 6, a means for connecting a toki device (voice response device) 12 to send an identification signal and a message by voice to release the telephone line 2 and a machine receiving the call The security terminal 5 is provided with means for calling and communicating with the machine security center apparatus 1 to send various signals, and means for receiving information from the machine security center apparatus 1 and outputting an alarm. Only when the calling operation is repeated by the above-mentioned means and the corresponding security start signal is not transmitted from the machine security terminal 5 to the machine security center apparatus 1 even if it is performed a preset number of times, or when an emergency signal is received. It is characterized in that means for notifying the controller of the machine security center device 1 is provided.

[0011]

According to the present invention, the machine security center device 1 automatically confirms the telephone call to the machine security terminal 5, and when the other party responds with the telephone, the toki device 12 using voice is connected and the identification signal is sent. And the message is sent and the public telephone line 2 is released. Upon receiving the call, the machine security terminal 5 calls the machine security center apparatus 1 to communicate the call information. Since a means for notifying the controller of the machine security center is provided only when a corresponding signal is not transmitted from the machine security terminal 5 to the machine security center 1 device even after performing the above-mentioned operations a set number of times, Compared with the above method, the load on the controller of the machine security center is significantly reduced. Further, since the machine security center device 1 can instruct a person present in the machine security terminal 5 to leave or to extend the exit time, the machine security is surely executed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows a block configuration example of a mechanical security device to which the system of the present invention is applied. As shown in the figure, the mechanical security device to which the present system is applied is composed of a mechanical security center device 1, a terminal device 3, and a public telephone line 2 connecting both. The mechanical security center device 1 includes a PBX 11, a token device 12, a control terminal 13, and an API (application / application).
Processor interface) 14, security server
It is composed of a bar 15. The terminal device 3 includes a network control device 4, a machine security terminal 5, and a telephone 6. The network control device 4 includes an identification signal detection circuit 40, a hook state detection circuit 41, a call signal detection circuit 42, a current detector 43, and a switch. 44, and the machine security terminal 5 further comprises an alarm display output circuit 51 and a signal transmitter 52.

The operation of each part of the mechanical security center device 1 will be described. The security server 15 has registered therein the telephone number of the terminal device 3, the security start time, etc., and the security server 15 sends a selection signal (dial signal) via the API 14 and the PBX 11 (automatic dialing). If the other party responds with the telephone 6 within a certain time, the Toki device 12 is connected and an identification signal (a signal representing the machine security center device) and a message are sent out via the PBX 11 to send a public telephone. Release line 2. Further, the security server 15 releases the line if the other party does not respond within a fixed time after transmitting the selection signal (dial signal). This operation is repeated a certain number of times, and when the machine security start signal is not transmitted to the machine security center device 1, it is displayed on the control terminal 13 to notify the controller. The controller can also call the telephone 6 of the terminal device 3 from the controller telephone 16.

The operation of each part of the network control device 4 of the terminal device 3 will be described. The identification signal detection circuit 40 detects the identification signal from the machine security center device 1. The current detector 43 detects the hook state of the telephone 6 and the current of the ringing signal, the hook state monitoring circuit 41 detects the hook state of the telephone 6 by the output current, and the ringing signal detection circuit 42 detects the ringing signal.
The control circuit 45 processes the output signals of the hook state detection circuit 41, the call detection circuit 42, and the identification signal detection circuit 40. If the conditions are met, the switch 44 is switched to control the machine security terminal 5 to the public telephone line 2. The connection is made, the machine security terminal 5 is notified that there is a call from the machine security center apparatus 1, and a command for calling the machine security center apparatus 1 is issued. The machine security terminal 5 makes a call to the machine security center device 1 and enters a communication state. The alarm display output circuit 51 of the mechanical security terminal 5 is activated by a signal from the mechanical security center device 1. Signal transmitter 52
Sends an exit signal, an exit extension signal, an emergency signal such as a fire or an intrusion, and sends the signal to the machine security center apparatus 1 via the network control apparatus 4 and the public telephone line 2.

Next, the operation of the above-described configuration will be divided into a case where a person is not present at the setting place of the terminal device 3 and the telephone 6 is not off-hook during a set time sufficiently longer than usual, and a case where the telephone 6 is off-hook at that time. The operation will be described. (1) A case will be described in which no person is present at the setting location of the terminal device 3 and the telephone 6 is not off-hook during a set time sufficiently longer than usual. In the machine security center apparatus 1, if the signal or the like indicating that the last exiting person has exited from the machine security terminal 5 does not arrive by the security start time registered in advance and the machine security center apparatus 1 is not in the machine security start state, the machine security center apparatus 1 The security server 15 automatically sends a selection signal (automatic dialing) to the corresponding machine security terminal 5 via the API (application processor interface) 14 and the PBX 11.

When the other party does not respond within a set time sufficiently longer than usual, that is, when the telephone 6 of the terminal device 3 is not off-hook, the machine security center device 1 releases the line. The network control device 4 of the terminal device 3 controls the control circuit 45 when the call signal is not stopped for a preset time sufficiently longer than usual after the call signal detection circuit 42 detects the call signal.
Judges that there was a call from the machine security center 1,
The switch 44 is switched to the security device terminal 5 side, the machine security terminal 5 is connected to the public telephone line 2, the machine security terminal 5 is notified that there is a call from the machine security center 1, and the machine security center 1 is called. Command things.

After the public telephone line 2 is opened, the machine security terminal 5 makes a call to the machine security center 1 and connects the public telephone line 2 to establish a communication state. The machine security center device 1 sends a signal to the machine security terminal 5 to instruct an operation for exit or extension of the exit time. Upon receiving this signal, the machine security terminal 5 activates the alarm display output circuit 51 and outputs an alarm display (for example, a buzzer output) in order to prompt the occupant to exit or extend the exit time. Is output.

(2) A description will be given of a case where the telephone 6 of the terminal device is off-hooked within a fixed time or less. When the machine security start state is not reached, the security server 15 of the machine security center device 1 automatically sends a selection signal via the API 14 and the PBX 12. When the other party responds within a certain period of time, that is, when the telephone 6 of the terminal device 3 is off-hook, the toke apparatus 12 is connected, the identification signal and the message are sent to the other party, and then the line is released.

The hook state detection circuit 41 detects the off-hook of the telephone 6 within a fixed time after the call signal detection circuit 42 of the network control device 4 of the terminal device 3 detects the call signal, and the machine security center device 1 When the identification detection circuit 40 detects the identification signal from, the switching device 44 is switched to the machine security terminal 5 side, the machine security terminal 5 is connected to the public telephone network 2, and the machine security terminal 5 is connected to the machine security center 1. It notifies that there is a call and instructs the machine security center 1 to call.

After the telephone line 2 is opened, the machine security terminal 5 calls the machine security center 1 to connect the line and establish a communication state. The machine security center device 1 sends a signal for instructing the machine security terminal 5 to leave or to extend the exit time. Upon receiving this signal, the machine security terminal 5 activates the alarm display output circuit 51 and outputs an alarm to the person present in the room to instruct the exit or the exit time extension operation.

Even if the operation of (1) or (2) is performed a preset number of times, the machine security center device 1 is operated by the machine security terminal 5 from the machine security terminal 5.
If the signal indicating that the last evacuee has left has not arrived and the machine security does not start, or if an emergency signal is received, the fact is displayed on the controller terminal 13 of the machine security center device 1 and the control is performed. Notify the official.

FIG. 2 is a schematic flow chart of the machine security center device 1.
Indicates a chart. It will be described with reference to FIG. If there is a call from the terminal device 3 (step ST101), if the identification signal has already been sent to the terminal device 3 (step ST).
102), and sends an alarm signal to the terminal device 3 (step ST103).

There is no call signal from the terminal device 3 (step ST101), and the security start time comes (step ST101).
104), if the security start signal has not been received (step ST105), the machine security center device 1 sends a selection signal to the terminal device 3 (automatic dialing) (step S).
T106). During the time t1 set to be sufficiently longer than usual (step ST107), the terminal device 3 operates the public telephone line 2
When the connection is completed (step ST108), the machine guard center apparatus 1 sends an identification signal and a message to the terminal device 3 by the toke apparatus 12 (step ST109).

Thereafter, the telephone line is released (step ST1
10) If the set number of times m has not been repeated yet (step ST111), wait for a response from the terminal device 3 (step ST112). After a certain period of time, step ST
Repeat from 101. If there is no response even after repeating the set number of times m times (step ST111), the controller of the machine security center is notified (step ST113), and the process ends.

FIG. 3 shows a schematic flowchart of the terminal device. It will be described with reference to FIG. If the security start signal or the time extension signal is sent (step ST201),
Reset the system display output (step ST20
2). If there is a ringing signal (including a general telephone) (step ST203), the connection to the telephone line 2 must be completed within the time t1 set sufficiently longer than usual (step ST2).
04) Wait for the ringing signal to stop (step ST208)
The processing from step ST209 onward is performed. When the telephone is off-hook (connection to telephone line 2 is completed) during the set time t1 (step ST205), the identification signal is received (step ST206), and the telephone is on-hook (step ST207), the control circuit of the terminal device 3 is received. 45 notifies the machine security terminal 5 that there is a call from the machine security center 1 and instructs the machine security center device 1 to call (step ST209).

The machine security terminal 5 makes a call to the machine security center apparatus 1 (step ST210), and the public telephone line is connected. When communicating with the machine security center 1 and receiving an alarm signal (step ST211), an alarm display is output to the alarm display output circuit 51 of the terminal device 3 (step ST).
212). It should be noted that the machine security center device 1 automatically confirms the telephone call to the machine security terminal 5, and when the other party responds, the machine security center device 1 is not called and the alarm display output is omitted. It may be done.

[0027]

As described in detail above, according to the present invention, the following effects are expected. (1) The machine security center device automatically confirms the call to the machine security terminal, and if the other party answers at that time, the toki device using voice is connected and the identification signal and message are sent.
Even if the other party does not respond within a set time longer than usual, the machine security terminal receiving the call calls the machine security center device and communicates with the machine security center device. Receives information and outputs an alarm. Further, since a means for notifying the controller of the machine security center is provided only when the corresponding signal is not transmitted from the machine security terminal to the machine security center device even after performing this operation a set number of times, the conventional Compared with the method, the load on the controller of the machine security center is significantly reduced.

(2) In addition, since the machine security center can prompt the person in the room at the machine security terminal to exit or extend the exit time, the machine security is surely executed.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration example of a mechanical security device to which the system of the present invention is applied.

FIG. 2 is a diagram showing a schematic processing flow of a mechanical security center device.

FIG. 3 is a diagram showing a schematic processing flow of a terminal device.

FIG. 4 is a block diagram showing a configuration example of a mechanical security system according to a conventional technique.

[Explanation of symbols]

1 Machine Security Center Device 11 PBX 12 Toki Device 13 Control Terminal 14 API (Application Processor
Interface 15 Security server 2 Public telephone line 3 Terminal device 4 Network control device 40 Identification signal detection circuit 41 Hook state detection circuit 42 Ringing signal detection circuit 43 Current detection circuit 44 Switching device 5 Machine security terminal 51 Alarm output Circuit 52 Signal transmitter 6 Telephone

Claims (1)

[Claims] 1. A machine security system using a public telephone line for installing and guarding a machine security terminal connected to a terminal device through a public telephone line from a machine security center device, wherein a voice response is sent to the machine security center device. A telephone and a machine security start signal and an emergency signal transmission means and an alarm output means in the terminal device, and the machine security center device by the time when the machine security start signal is registered in advance from the terminal device. Means for automatically calling the corresponding terminal device from the machine security center device by using the public telephone line when it is not sent to the machine security center device, and in response to the call, from the machine security terminal to the machine security center. A means for calling and communicating, and information is obtained from the machine security center device, an alarm is output from an alarm output means of the terminal device, and the calling is performed by the means. And a means for notifying a controller in the machine security center when a corresponding signal is not transmitted from the machine security terminal to the machine security center device even after performing the operation a preset number of times. A mechanical security system that uses a public telephone line.