FI87842B - Centrally based burglar alarm method - Google Patents

Abstract

The invention relates to a centrally based burglar alarm method, in which a burglar alarm system 20 is activated and the activated system sounds an alarm 22 when it receives a pulse. According to the invention the burglar alarm system 20 is activated on a subscriber unit 2 with a security code, the activated subscriber unit 2 is set to operate in an Aincoming calls prohibited@ mode 21, the identification data of the subscriber unit 2 is transmitted 23 to a telephone exchange connected to the alarm, a delay 24 is set, during which the alarm can be disconnected by means of the security code, and after the delay 24 the alarm like the subscriber unit 2 with its identification data is transmitted from the telephone central unit 4 to a separate duty unit 5, which in turn initiates agreed measures 27. In a method according to the method the break-in cannot prevent the system from functioning by means of a telephone call. <IMAGE>

Description

87842

Central-based burglar alarm method

The invention relates to a central base burglar alarm method according to claim 1.

The invention offers the possibility of using a burglar detector connected in parallel with a telephone machine in a telephone interface, which transmits information about the burglary by utilizing the functions of the telecentre.

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There are many types of burglar alarms suitable for private homes. Their prices and features vary greatly from a few hundred marks to systems costing several thousand marks. The simplest of any burglar alarms can be a mere siren and, at its most complex, a very versatile alarm transmission system with many sensors and alarm centers.

Current solutions are based on the use of a robotic telephone. This 20 means that in connection with a burglar detector, either integrated in the central unit or as a separate device, there is an automatic dialer. Its function is to automatically select the number (s) pre-programmed in it after receiving the stimulus. This solution does not require anything from the telecommunications network: -25 special features and thus does not appear in the exchange either.

A weakness of systems that use an automatic selection device (robotic telephone) to transmit an alarm is their lack of intelligence. Once a burglar alarm has occurred, it is extremely ... 30 important that the alarm leads to action. Automatic. - the dialer does not guarantee this, as the device only dials the numbers programmed into it without making sure that the call is answered. In addition, if the line is busy, for example due to an incoming call, you will not be able to send a dial. An enlightened thief can, for example, call his home on the NMT / GSM / CT2 telephone before breaking in, thus preventing the transmission of the alarm of existing devices. In addition, the 2 87842 automatic dialer takes its own time to send the number ranges programmed into it (delay + dialing), so if the thief is able to disconnect the device from the network quickly enough, the alarm message will not go anywhere.

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The disadvantages of the intelligence centralized in the automatic selection device and the terminal are thus: - making it easily inoperable, 10 - not being able to verify that the alarm has led to action The object of the present invention is to overcome the shortcomings of the above technology and

The invention is based on activating the burglar alarm system with a password, setting the activated subscriber unit in the "incoming call barring" mode, transmitting the subscriber unit identity information to the central unit in connection with the alarm 20, which in turn? 5 takes the agreed action.

More specifically, the method according to the invention is characterized by what is set forth in the characterizing part of claim 1.

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The invention provides considerable advantages.

The advantages of previous systems are:: ‘3S * The transmission of alarm information cannot be prevented by a thief other than by physically disconnecting the subscriber line going to the apartment before breaking into it.

3 87842 * The person involved (emergency room operator) ensures that the alarm always goes to the person performing the measures.

* The service provides a very reliable alarm for 5 transfers. Reliability is the same as the reliability of a telecommunications network.

* The thief is unable to block the subscriber interface because calls to the subscriber interface where the service is activated cannot be executed.

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In addition, the system is simple to implement and inexpensive, so that its use can be aimed at protecting private homes and small businesses. The method according to the invention enables the rapid transmission of an alarm and the rapid taking of measures to interrupt a burglary and to catch intruders.

The invention will now be examined in more detail with the aid of exemplary embodiments according to the accompanying figures.

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Figure 1 schematically shows an apparatus suitable for the method according to the invention.

Figure 2 shows a flow chart of one method variant according to the invention.

Figure 1 shows the different parts of the system according to the invention. These are: .30 Detector l, which detects a burglary, ie reacts to movement. Any available device can be used as a detector. A passive infrared detector is most recommended. Detector 1 may also include a smoke detector and a siren.

A key telephone 2, which is an ordinary telephone used in a telephone subscription and which operates, for example, using voice frequency selection. The device must be type-approved for practical use. The key telephone 2 will hereinafter also be referred to as a subscriber unit.

5 Central unit 3, which handles the transmission of alarm information from the subscriber unit to the telephone exchange up to the subscriber line. At its simplest, the central processing unit 3 can be a relay which draws on the basis of the alarm information coming from the detector 1. This pull of the relay closes the subscriber loop, i.e. 10 picks up the handset. In addition, the central processing unit 3 can provide the detector 1 with a power supply, intelligence for analyzing various alarms and other additional features, which, however, are not necessary for the use of the system.

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Digital telephone exchange 4, which is to comprise a modified "hot line" function. The control panel 4 stores the alarm information as soon as the alarm occurs. Call center 4 receives the password and clears the alarm if the 20 passwords are correct. If the password is incorrect, the call is routed to the telephone service. These functions are not required with existing software, but require new program code. The content and implementation of this software add-on is central manufacturer specific. The telephone exchange 4 must, of course, 25 meet the requirements of the telecommunication network structure regulations for exchanges.

The on-call point 5, i.e. the alarm reception point, can be, for example, the on-call point of a telecommunications company or security company. The exchange 4 transmits the information on the non-passivated alarm to the emergency point 5 and at the same time the information about the A-subscriber, i.e. the subscription from which the alarm information has come, is transferred there via signaling. This A-subscriber's information provides information on "35 actions that the owner of the subscription in question wanted to perform. The on-call point 5 must have at least a screened telephone from which the on-caller receives 5,87842 A-subscriber numbers, ie the subscription from which the alert comes. It is possible to acquire a PC at the service point, which can also be used to directly display the 5 measures agreed with the interface in question.

The person performing the measures can be, for example, a security company, a neighbor, an acquaintance, etc., to whom the on-call person notifies about the alarm.

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According to Figure 2, the alarm transmission system according to the invention is implemented by means of telephone exchanges and features. The specific method steps for a system according to this solution are: 15 1) The subscriber enters into an agreement with the telecommunications operator in his area for an alarm transmission service.

2) The subscriber activates the alarm transmission function 20 himself to his own subscription with the keypad of his own approved telephone machine 20 whenever the service is needed. The service is activated by function code 11a. In the same context, the "incoming call barring" function 21 is also activated. The maximum length of the function code is typically 4 characters.

'. 3) Upon detection of 22 burglars / intruders by means of a motion detector (or other monitoring device 25) connected to the system, the alarm transmission service 23 transmits the information about the alarm immediately without delay to the telephone exchange to which the subscriber is connected.

/ 30 4) After receiving information about the alarm, the control panel waits 24 times for the time specified by the time control (eg 60 s) to deactivate, ie to clear the alarm 25. Decryption 25 is performed with the (function code +) password using the telephone keypad. Only a person who knows the password associated with the connection will be able to execute the alarm.

5) Alarm cancellation 25, i.e. passivation, can only take place by means of the above-mentioned procedure 6 87842, nothing else destroys / decrypts alarm information from the control panel.

6) If the passivation does not occur within the framework of time control, the exchange 26 forwards the information from the alarm to the on-call point (personal emergency), which alerts the performer of the measures using the procedure agreed with the owner of the subscription.

7) The emergency point receives information about the subscription from which the alarm has come, based on the number 10 of the A-subscriber included in the signaling. This number also provides information on the agreed actions 27 to be performed, either manually or using a PC-based solution.

Steps 3, 4, 5 and 6 are new features related to the telephone exchange, the features contained in step 2 have already been partially implemented in existing exchanges, but they have not been utilized in the applications according to the method described here.

Claims (4)

7 87842 A central-based burglar alarm method, wherein 5. the burglar alarm system is activated (20), upon receiving the alarm, the activated system issues an alarm (22), 10. the burglar alarm system is activated (20) in the subscriber unit (2) with a password, and - the activated subscriber unit (2) is set to in the "blocking" state (21), 15 characterized in that in connection with the alarm, the identity information of the subscriber unit (2) is transferred (23) to the telephone exchange unit (4), 20 - a delay (24) is provided during which the alarm can be decrypted (25), and ·. · - after a delay (24), the alarm “25” issued by the subscriber unit (2) is transferred with its identity information from the telephone exchange unit (4) to a separate emergency unit (5), which in turn takes the agreed actions (27). Method according to Claim 1, characterized in that the system is activated (20) by a four-digit code. Method according to claim 1, characterized in that the delay (24) is about 60 seconds. : .35 Method according to Claim 1, characterized in that the operations in the emergency unit (5) are carried out manually. 8 87842