JP2001229478A - Center device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To evade the concentration of calls from guard devices on a specific telephone number of a center device. SOLUTION: A control part 11 takes (r) (r<=n) out of (n) telephone numbers and generate nPr combinations of the telephone numbers. As a combination of telephone numbers assigned to respective guard devices 2, one of the nPr combinations is selected at random. Thus, the combination of telephone numbers assigned to the respective guard devices 2 is determined and then the control part 11 sends and downloads the selected combination of the telephone numbers to the respective guard devices 2 by a communication control part 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a center device used for a security system.

[0002]

2. Description of the Related Art Conventionally, as a security system, a security device located at a security destination and a center device located at a security center of a security company are connected via a public telephone network (hereinafter simply referred to as a telephone network). Security systems are known and connected. Such a security system is well known, but its schematic configuration is shown in FIG. In FIG. 1, 1 is a center device, 2
Indicates a security device.

[0003] The center device 1 collectively processes the reports from the security devices 2 and is arranged, for example, at a security center of a security company. The center device 1 includes a control unit 11, a communication control unit 12, an input unit 13, and a monitor 14, as shown in FIG. The center device 1 is usually configured using a personal computer.

The communication control unit 12 is for performing two-way communication with the security device 2 via a telephone line network. When a call is issued from the security device 2, the communication control unit 12 closes the line and receives data. Performing a process of passing the received data to the control unit 11, and, when the data to be transmitted and the telephone number of the other party are passed from the control unit 11, dialing the passed telephone number; When the line is closed, a process of transmitting the data passed from the control unit 11 is performed. As shown in FIG. 2, a plurality of communication control units 12 are provided, and different telephone numbers are assigned to the respective communication control units 12.

The control unit 11 processes and manages data received from the communication control unit 12, that is, data transmitted from the security device 2. The control unit 11 also performs a process of downloading various data to each security device 2. The download is performed as follows. First, the operator creates data to be downloaded using the input device 13 including a keyboard and a mouse, and sets the telephone number of the security device 2 to download the data and instructs the download. As a result, the control unit 11 passes the telephone number, the data, and the command for instructing the download to the communication control unit 12 whose line is not currently closed. In response, the communication control unit 12 dials the telephone number, and transmits a command and data when the line is closed by the other party. Thus, downloading from the center device 1 to the security device 2 is performed.

[0006] On the other hand, a security device 2 is disposed at a location to be guarded. As shown in FIG. 3, the security device 2 includes a control unit 21 and a center device 1 via a telephone network.
And a communication control unit 22 for performing two-way communication. The communication control unit 22 is assigned a telephone number.

The control unit 21 is connected to a security sensor for detecting an abnormality such as a heat ray sensor. Further, a security state setting device is also connected to the control unit 21. The security status setting device is for setting the security status of each security area defined at a location to be guarded. It is well known that there are two security states, an alert state and a release state. The method for setting from the alert state to the released state by the security state setting device, or the method for performing the setting from the released state to the alert state, includes a method using a key,
Various methods are known, such as a method using a magnetic card or an IC card on which an ID code is written, and a method of inputting an ID code using a numeric keypad. In the present invention, what kind of method is essentially used Since it is not an important matter, any method may be used.

Further, the control unit 21 has a telephone number table 23
Is managing. In the telephone number table 23, the telephone numbers of the communication control unit 12 of the center apparatus 1 which is the destination of the report are registered. Usually, the number of telephone numbers registered in the telephone number table 23 is plural, and the registered telephone numbers are assigned priorities. For example,
The center device 1 is provided with three communication control units 12,
Assuming that the telephone numbers of these communication control units 12 are A, B, and C, these three telephone numbers are assigned priorities and registered in the telephone number table 23.

In general, the control unit 21 of the security device 2 is provided with a plurality of security sensors and security state setting devices. However, in order to avoid complicating the figure, in FIG. Indicates that the security sensor and the security state setting device are connected. 2 and 3
, L indicates one telephone line.

The control unit 21 of the security device 2
When the download is instructed, download processing is performed. That is, the communication control unit 22
Is called from the communication control unit 12 of the center apparatus 1 to close the line, receive a command and data, and pass it to the control unit 21. When the command instructs download, the control unit 21 downloads the data.

Further, the control unit 21 performs a process of reporting to the center device 1. In what case the notification to the center device 1 can be determined arbitrarily.
When the security status is changed, a notification is made when an abnormality occurs, and a regular notification is also made.

The operation of the control unit 21 at the time of notification is as follows. Here, it is assumed that three telephone numbers A, B, and C are registered in the telephone number table 23, and the first rank is A, the second rank is B, and the third rank is C.

Assuming that the security status of a certain security area is changed from the security status to the release status by the security status setting device, the control unit 21 creates security data to be reported and passes it to the communication control unit 22. The security data includes at least the ID number assigned to the security device 2, the number of the guard area whose security state has been changed, and data indicating that the security state has been changed from the security state to the released state. I have.

At this time, the control unit 21 refers to the telephone number table 23, and the telephone number A, which is the first-ranked telephone number.
To the communication control unit 22 to instruct notification. As a result, the communication control unit 22 calls the telephone number A.

At this time, if the communication control unit 12 having the telephone number A of the center device 1 closes the line, the communication control unit 22 can transmit security data and make a report. When the line of the control unit 12 is already closed, the communication control unit 12 of the center apparatus 1 cannot receive a call for the call. Therefore, the communication control unit 22
If the line is not closed after a lapse of a predetermined time after the call is issued, the control unit 21 is notified that the notification could not be made. Upon receiving this notification from the communication control unit 22, the control unit 2
No. 1 gives the communication control unit 22 the telephone number B of the second order, which is the next order, and instructs the communication control unit 22 to send the report again.

At this time, if the communication control unit 12 having the telephone number B of the center device 1 closes the line, the communication control unit 22 can send security data to make a report. When the line of the control unit 12 is already closed, the communication control unit 12 of the center device 1 cannot receive a call for the call. Then, the communication control unit 22
If the line is not closed after a lapse of a predetermined time after the call is issued, the control unit 21 is notified that the notification has not been made. When receiving this notification from the communication control unit 22, the control unit 2
No. 1 gives the third order telephone number C, which is the next order, to the communication control unit 22 and instructs the communication control unit 22 to send a report again.

According to this instruction, the communication control unit 12 calls the telephone number C. At this time, the center device 1
If the communication control unit 12 whose telephone number is C closes the line, the communication control unit 22 can transmit the security data and make a notification, but the line of the communication control unit 12 of the center device 1 is already closed. When the call is connected, the communication control unit 12 of the center apparatus 1 cannot receive a call for the call. And
If the line is not closed after a lapse of a predetermined time after the call is made, the communication control unit 22 notifies the control unit 21 that no notification can be made. Upon receiving this notification from the communication control unit 22, the control unit 21 gives the first-ranked telephone number A to the communication control unit 22 again, and instructs to perform the notification again.

Hereinafter, the same processing is repeated. This is the process of redialing. That is, the redial process first calls the first-ranked telephone number, and if the line is not closed, calls the second-ranked telephone number.
If the line is not closed, calls are made to lower-priority telephone numbers one by one, and if the line is not closed even if the lowest-numbered telephone number is called, the first-ranked telephone number is returned again. This is a process of repeating a predetermined number of times of making a call from the first-ranked telephone number to the lowest-ranked telephone number.

If the line is still not closed, the control unit 21 ends the processing of the notification. That is,
In this case, no notification is made. This is called unreporting.
The same applies to the redialing process.

The case where the security state has been changed from the alert state to the released state has been described above. The same applies to the case where the security state has been changed from the released state to the alert state.

When the control unit 21 of the security device 2 detects that a security sensor installed in a security area in a security state has issued an alarm, it determines that an abnormality has occurred and issues an abnormality report. In this case, the control unit 2 of the security device 2
Numeral 1 creates security data to be reported and passes it to the communication control unit 22. The security data includes at least the ID number assigned to the security device 2, the number of the security area in which the abnormality has occurred, and data indicating the occurrence of the abnormality. At this time, the control unit 21 refers to the telephone number table 23 and stores the first-ranked telephone number A in the communication control unit 2.
2 to give a report. As a result, the communication control unit 22 calls the telephone number A.

At this time, if the communication control unit 12 having the telephone number A of the center device 1 closes the line, the communication control unit 22 can send security data and make a report. If the line of the control unit 12 is already closed, the communication control unit 12 of the center device 1 cannot receive the call and the line is not closed. And the communication control unit 22 performs the redialing process described above.

Note that the alarm is issued by the security sensor means that a signal indicating that a predetermined state is detected by the security sensor is output. For example, a signal indicating that an object is detected is output by a heat ray sensor. That is, a sensor that detects that a window or a door has been opened outputs a signal indicating that the window or door has been opened. The same applies to other security sensors.

Further, when a predetermined timing comes, the control unit 21 of the security device 2 makes a regular notification. In this case, the control unit 21 creates security data to be reported and passes it to the communication control unit 22. This security data includes:
It includes at least an ID number assigned to the security device 2 and data indicating that it is a periodic report. At this time, the control unit 21 refers to the telephone number table 23 and stores the first telephone number A in the communication control unit 22.
To give a report. As a result, the communication control unit 22 calls the telephone number A.

At this time, if the communication control unit 12 having the telephone number A of the center device 1 closes the line, the communication control unit 22 can transmit security data and make a regular notification. When the line of the communication control unit 12 is already closed, the communication control unit 12 of the center device 1 cannot receive a call for the call and the line is not closed. 21 and the communication control unit 22 perform redial processing.

The timing at which the periodic notification is made can be arbitrarily determined. For example, after some kind of notification is made, it can be set to be performed when the user is alert for a predetermined time, or it can be set to make a periodic notification at a predetermined time. In addition, it can be arbitrarily determined. Here, any one may be used.

[0027]

By the way, the security device 2
The telephone numbers registered in the telephone number table 23 and their priorities are usually downloaded from the center device 1. Then, the downloaded telephone numbers and their priorities are the same for all security devices 2. Therefore, in the related art, there is a problem that the times when the security device 2 makes a report to the center device 1 are duplicated, and there is a high possibility that a false report will occur.

For example, as described above, if the security status is changed or an abnormality occurs, a report is made and a regular report is also made. Since the time is almost the same time, the time at which the security state of the security area is changed from the security state to the release state is also the same time, and as a result, many security devices 2 report the security state change. However, there is a high possibility that the line will not be closed even if the redial processing is performed at approximately the same time and redial processing will be performed, and a false alarm will occur.

This is the same for the periodic report. In other words, if there are many security devices that are set to send periodic reports at the same time, scheduled reports will concentrate,
As in the case described above, there is a high possibility that a false alarm will occur.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a center device capable of preventing a report from a security device from being concentrated on a specific telephone number of the center device. Is what you do.

[0031]

In order to achieve the above object, the center device according to the first aspect of the present invention, when prioritizing and downloading a plurality of telephone numbers to be notified to a security device, It is characterized in that a predetermined number is randomly selected from the telephone numbers assigned to the center device and downloaded to the security device. The center device according to claim 2, when prioritizing and downloading a plurality of telephone numbers for notifying the security device, r out of n telephone numbers assigned to the center device.
(However, r ≦ n) are taken out, _{n Pr} combinations are created in consideration of the order, and a combination of telephone numbers is randomly selected from the _{n Pr} combinations to be used as a security device. It is characterized by downloading.

[0032]

Embodiments of the present invention will be described below with reference to the drawings. Although the configuration of the center device according to the present invention is the same as that shown in FIG. 2, the operation when downloading a telephone number when notifying the security device 2 is different from the conventional operation. Hereinafter, the operation will be described. In the following description, it is assumed that the number of communication control units 12 provided in the center device 1 is n.
Naturally, the telephone numbers of these n communication control units 12 are different from each other.

When downloading a telephone number to make a report to the security device 2, first, the operator instructs the input device 13 to download a telephone number. Here, it is assumed that the operator indicates all security devices as security devices to be downloaded.

In response to the instruction, the control unit 11 determines a combination of telephone numbers including the priority order assigned to each security device 2 by randomly selecting a predetermined number from n telephone numbers. More specifically, among the n number of telephone numbers r (However, r ≦ n) pieces were removed, it order even considering _{n P r (= n! /} (N-r)!) Street Create a combination of phone numbers. Thus, the combination of the telephone number, including the priority is _n P _r pieces determined. The value of r is registered in the control unit 11 in advance.

Then, the control unit 11 randomly selects one combination of telephone numbers to be assigned to each security device 2 from _{n Pr} combinations. As a method of selecting the one randomly from the combinations of _n P _r as, for example, to generate a value of up to. 1 to _n P _r by an appropriate random number, to select a combination of telephone number based on the value What should I do?

When the combination of telephone numbers assigned to each security device 2 is determined in this way, the control unit 11 creates data of the selected combination of telephone numbers, and registers the data in the telephone number table 23. The communication control unit 12 creates transmission data to be transmitted to each security device 2 with information indicating that the data is data to be transmitted and a command for instructing download, and transmits the data to each security device 2 by the communication control unit 12.

On the other hand, when the communication control unit 22 of each security device 2 receives a call from the communication control unit 12 of the center device 1, the communication control unit 22 closes the line and receives transmission data from the center device 1 for control. Hand over to part 21. Then, the control unit 21 registers the data of the combination of the telephone numbers in the telephone number table 23. As described above, the combination of the telephone numbers including the priority order is downloaded.

As described above, the telephone numbers registered in the telephone number table 23 of each security device 2 and their priorities are selected at random and are not all the same as in the prior art. The degree of concentration of the reports to the center device 1 is reduced as compared with the related art, so that it is possible to reduce the possibility that the reports from the security devices will be unreported.

A specific example is as follows. For example, suppose that n = r = 3 and three telephone numbers are A, B,
Assuming that C is a combination of telephone numbers including priority,
₃ P ₃ = 6 types. They are ABC, AC-
B, B-A-C, B-C-A, C-A-B, C-B-A
It is. Then, these six combinations of telephone numbers are randomly assigned to each security device 2 and downloaded.

Therefore, even if all the security devices 2 make any notification to the center device 1 at the same time,
The telephone number table 23 of all security devices 2 as in the prior art
Is compared with the case where the telephone numbers registered in the center device 1 are the same including the priority order, the security device 2 that calls the same communication control unit 12 of the center device 1 by the telephone number of the first order
Is about one sixth of the conventional one, and the degree of concentration of the notification to the center device 1 is reduced as compared with the conventional one. In addition, even if a call is not received with the first-ranked telephone number, the possibility of receiving a call with the second-ranked or third-ranked telephone number is higher than before.

Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and it is apparent to those skilled in the art that various modifications are possible.

[Brief description of the drawings]

FIG. 1 is a diagram showing a schematic configuration example of a security system in which a security device arranged at a security destination and a center device arranged at a security center of a security company are connected via a public telephone network.

FIG. 2 is a diagram showing a configuration example of a center device 1 of FIG.

FIG. 3 is a diagram illustrating a configuration example of a security device 2 of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Center device, 2 ... Security device, 11 ... Control part, 12 ...
Communication control unit, 13 input device, 14 monitor, 21 control unit, 22 communication control unit, 23 telephone number table, L
…telephone line.

Claims (2)

[Claims] When a plurality of telephone numbers to be notified to a security device are downloaded with a priority order, a predetermined number is randomly selected from the telephone numbers assigned to the center device and the security device is selected. A center device characterized by downloading. 2. When a plurality of telephone numbers to be notified to a security device are downloaded with a priority order, a plurality of telephone numbers are selected from n telephone numbers assigned to the center device.
(However, r ≦ n) are taken out, _{n Pr} combinations are created in consideration of the order, and a combination of telephone numbers is randomly selected from the _{n Pr} combinations to be used as a security device. A center device characterized by downloading.