Security system using sequence signal

• US 20070035389A1
• Filed: 10/25/2006
• Published: 02/15/2007
• Est. Priority Date: 05/28/2004
• Status: Active Grant

• Current Assignee: Home Abroad Link Incorporated, Wako Engineering Co., Ltd.
• Original Assignee: Home Abroad Link Incorporated, Wako Engineering Co., Ltd.
• Inventors: Komiya, Keinosuke, Iibuchi, Shoji
• Granted Patent: US 7,667,595 B2
• Time in Patent Office: Days
• US Class Current: 340/516
• CPC Class Codes: G08B 25/008 Alarm setting and unsetting, i.e. arming or disarming of the security system

Abstract

There is provided an inexpensive and easy-to-use security system whose setting can be changed freely by a user using a target to be managed by the security system and whose presence is not easily perceived by an intruder. The security system comprises security targets and a management system which manages the security targets. The security target comprises a plurality of activation switches which generate activation signals and a plurality of partial signal generating sections that generate partial signals which can constitute a predetermined sequence signal upon receipt of activation signals generated from the activation switches, in accordance with predetermined relationships with these activation switches. The management system compares partial signals generated from the partial signal generating sections with predetermined sequence information and gives an alarm when they do not match each other. The relationships between the activation switches and the partial signal generating sections can be changed freely by a user of the security target.

Claims

1. A security system comprising security targets and a management system which manages the security targets,

wherein

the security target comprises a plurality of activation switches which generate activation signals and a plurality of partial signal generating sections that generate partial signals which can constitute a predetermined sequence signal upon receipt of activation signals generated from the activation switches, in accordance with predetermined relationships with these activation switches,

the management system compares partial signals generated from the partial signal generating sections of the security target with predetermined sequence information and gives an alarm when they do not match each other,

the relationships between the activation switches and the partial signal generating sections can be changed freely by a user of the security target, and

the activation switches are disposed in different places.

2. The security system of claim 1, wherein the partial signal generating sections generate any of the partial signals which can constitute the predetermined sequence signal in turn upon receipt of the activation signals generated from the activation switches, and the management system compares the generated partial signals with the sequence information stored in advance in the management system in turn and gives an alarm at the point when the management system determines that they do not match each other.

3. The security system of claim 1, wherein the partial signal generating sections generate any of the partial signals which can constitute the predetermined sequence signal in turn upon receipt of the activation signals generated from the activation switches, and the management system compares the generated partial signals with the sequence information stored in advance in the management system at once and gives an alarm when they do not match each other.

4. The security system of claim 1, wherein the sequence information stored in the management system in advance is not changed without notifying the user of the security target in advance.

5. The security system of claim 1, which gives an alarm when the partial signals generated from the partial signal generating sections of the security target in turn and the sequence information stored in advance in the management system do not match each other completely.

6. The security system of claim 1, which gives an alarm when the partial signals generated from the partial signal generating sections of the security target in turn and the sequence information stored in advance in the management system do not match each other partially.

9. The security system of claim 1, which gives an alarm when the sequence information stored in the management system in advance and the sequence signal generated by the security target do not match each other within a predetermined time.

10. The security system of claim 1, which gives an alarm when the sequence information stored in the management system in advance and the sequence signal generated by the security target do not match each other even by operating the switches for a predetermined number of times.

7. (canceled)

8. (canceled)