JP2009080585A - Crime prevention system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suppress the occurrence of erroneous notification, and to surely announce some kind of abnormal state which has occurred in the management control area of a crime prevention system. <P>SOLUTION: Under the control of a control part 34 of a crime prevention receiver 30, according as an existence detection signal to be transmitted by an existence detection sensor 10<SB>n</SB>is received, a non-warning mode is switched to a warning mode; when an intrusion detection signal to be transmitted by an intrusion detection sensor 20<SB>m</SB>is received at a prescribed time, after the non-warning mode is switched to the warning mode, a prescribed warning operation is performed; and when an intrusion detection signal to be transmitted by the intrusion detection sensor 20<SB>m</SB>is received in the non-warning mode, the non-warning mode is inhibited from being switched to the warning mode, within a fixed time. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a security system that detects a certain abnormal state and executes a security process according to a detection result.

  In order to prevent illegal intrusions into the building from the outside, a detection sensor (wireless security sensor) installed on a door, window, etc. and a wireless signal transmitted from the detection sensor that detected the intrusion are received and an alarm is issued. A crime prevention system including a crime prevention receiver (wireless crime prevention receiver) has been devised and implemented (for example, see Patent Document 1).

JP 2005-173837 A

  Such a crime prevention system generally detects an abnormal state by one detection sensor among a plurality of detection sensors installed in the management jurisdiction area of the crime prevention system. An alarm sound for intimidation is sounded, and an alarm sound for notifying that an abnormal state has occurred to a resident who is a legitimate user is sounded by a security receiver that has received a detection signal from a detection sensor. It is configured as follows.

  However, in the case of a configuration in which an alarm is sounded by the reaction of one detection sensor among a plurality of detection sensors installed in the management jurisdiction area of the security system, the alarm system is executed. Unless a detection sensor is installed in the management jurisdiction of the strict assumption of a position where an abnormal state can occur reliably, for example, an alarm is issued in response to detection of a resident who is a legitimate user. There is a problem in that a system configuration in which erroneous notification occurs with a very high probability such as ringing.

  Accordingly, the present invention has been devised to solve the above-described problems, suppresses the occurrence of false notifications, and reliably notifies any abnormal state that occurs within the management jurisdiction area of the security system. It aims at providing the crime prevention system which can do.

  The crime prevention system of the present invention includes a first detection sensor that detects the presence of a person outside a predetermined area, and a second detection sensor that detects some abnormal state within the predetermined area, the first detection sensor, A crime prevention system that executes a predetermined alarm operation according to a detection result of the second detection sensor, the crime prevention system, during a predetermined time after the presence of a person is detected by the first detection sensor, When an abnormal state is detected by the second detection sensor, control is performed so as to execute the predetermined alarm operation, the presence of a person is not detected by the first detection sensor, and the abnormal state is detected by the second detection sensor. When it is detected, the above-described problem is solved by including a control unit that controls to prohibit the execution of the predetermined alarm operation for a predetermined time.

  The crime prevention system according to the present invention detects a first detection sensor that transmits a detection signal as a radio signal in response to detecting the presence of a person outside the predetermined area, and detects any abnormal state within the predetermined area. In response to the detection signal transmitted by the second detection sensor that transmits a detection signal as a radio signal and the first detection sensor and the second detection sensor, a predetermined alarm operation is performed. A security system including a security receiver for controlling the security receiver so that the security receiver switches from a non-warning mode to a warning mode in response to receiving a detection signal transmitted by the first detection sensor. Detection that is transmitted by the second detection sensor during a predetermined time after switching to the alert mode by the switching means and the mode switching means When the detection signal transmitted by the second detection sensor is received in the non-warning mode, the warning mode is entered for a certain period of time. The above-described problem is solved by including a control unit that controls the mode switching unit so as to prohibit switching.

  According to the present invention, it is possible to suppress the occurrence of erroneous notification and reliably notify any abnormal state that has occurred in the management jurisdiction area of the security system.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, the crime prevention system 1 shown as embodiment of this invention is demonstrated using FIG. The security system 1 uses a plurality of presence detection sensors 10 _n (n is a natural number), a plurality of intrusion detection sensors 20 _m (m is a natural number), a presence detection sensor 10 _n and a predetermined frequency band, A crime prevention receiver that can wirelessly communicate in a direction to receive a wireless signal transmitted from the presence detection sensor 10 _n and can bidirectionally wirelessly communicate with the intrusion detection sensor 20 _m using a predetermined frequency band. 30.

  Such a crime prevention system 1 is installed in a predetermined area managed by the crime prevention system 1, for example, a detached house with a garden or the like.

At this time, for example, the presence detection sensor 10 _n can detect the presence of a person outside a predetermined area managed and controlled by the crime prevention system 1, for example, an outer wall that separates a neighboring house, a road, and the site where the residence is built, It is installed at gates that are the entrance to and outside the site.

On the other hand, intrusion detection sensor 20 _m so as to detect any abnormal condition in a predetermined area managed jurisdiction in security system 1, the residence built anywhere and site-site windows and doors Etc.

(Presence detection sensor 10 _n )
The presence detection sensor 10 _n includes an antenna 11 that transmits a radio signal to the security receiver 30, a transmission unit 12 that performs transmission processing by modulating a carrier wave of a predetermined frequency based on data to be transmitted, and the presence detection sensor 10. and a control unit 13 that comprehensively controls the _n, a data storage unit 14 for storing identification information for uniquely identifying at least the presence detection sensor 10 _n, and a sensor section 15 for detecting the presence of human Yes.

Since the presence detection sensor 10 _n having such a configuration has a small shape and incorporates a power source such as a battery (not shown), for example, an outer wall that separates a neighboring house, a road, or the like from a site where the residence is built and It can be installed in any place such as the gate that is the entrance to the entrance. The presence detection sensor 10 _n is installed so as to be able to detect the presence of a person outside a predetermined area managed by the security system 1.

The control unit 13 uniquely identifies the presence detection sensor 10 _n stored in the data storage unit 14 when the sensor unit 15 detects the presence of a person outside the management jurisdiction area of the security system 1. The identification information to be read is read, the transmission unit 12 is controlled, and the presence detection signal, which is a radio signal with the read identification information attached, is transmitted to the security receiver 30 via the antenna 11.

(Intrusion detection sensor 20 _m )
The intrusion detection sensor 20 _m transmits a radio signal to the security receiver 30, receives the radio signal transmitted from the security receiver 30, and modulates a carrier wave having a predetermined frequency based on data transmitted by the antenna 21. The transmission unit 22 that executes the transmission process, the reception unit 23 that demodulates the data modulated by the radio signal received by the antenna 21 and executes the reception process, and the intrusion detection sensor 20 _m are integrated. the display control unit 24 for controlling a data storage unit 25 for storing identification information for uniquely identifying at least the intrusion detection sensor 20 _m, a sensor section 26 for detecting an intruder, the detection result of the sensor unit 26 And a sounding part 28 for sounding an alarm sound threatening the intruder.

Since the intrusion detection sensor 20 _m having such a configuration has a small shape and incorporates a power source such as a battery (not shown), the intrusion detection sensor 20 _m can be installed in various places inside and outside various buildings including a house. . The place where the intrusion detection sensor 20 _m is installed is determined by the sensing method of the sensor unit 26.

  The sensor unit 26 is a sensor that can detect any abnormal state in the management jurisdiction area, such as the presence of an intruder who has illegally entered the building managed in the crime prevention system 1 and the area surrounding the building. For example, a magnet sensor (open / close sensor) that indirectly detects the presence of an intruder by detecting opening / closing of a window or door (door), or a temperature difference between the temperature of an object and the temperature of a person A heat ray sensor or the like that directly detects the presence of an intruder can be used.

Thus, the intrusion detection sensor 20 _m is installed in a window or a door when a magnet sensor is used as the sensor unit 26, and when a heat ray sensor is used, the intrusion detection sensor 20 _m It will be installed on the wall or ceiling.

The control unit 24 detects the intrusion detection sensor 20 stored in the data storage unit 25 when the sensor unit 26 detects the presence of an intruder who has illegally entered the management jurisdiction area of the security system 1. _The identification information that uniquely identifies _m is read out, the transmission unit 22 is controlled, and an intrusion detection signal that is a radio signal with the read out identification information attached is transmitted to the security receiver 30 via the antenna 21.

The control unit 24 transmits the identification information attached to the radio signal demodulated by the reception unit 23 in response to the reception of the radio signal transmitted from the security receiver 30 and the antenna 21, and the data storage unit. 25 is compared with the identification information that uniquely identifies the intrusion detection sensor 20 _m stored in the memory 25 to determine whether the wireless signal is transmitted to itself.

  When the identification information matches, the control unit 24 determines that it is a radio signal transmitted to itself, and executes processing according to a command request for the transmitted radio signal.

Specifically, when the control unit 24 receives an alarm signal transmitted as a response signal from the crime prevention receiver 30 that has received the intrusion detection signal from the intrusion detection sensor 20 _m , the control unit 24 controls the ringing unit 28 to generate an alarm sound. Or when a signal instructing the stop of the sounding unit 28 from the security receiver 30 is received, the sounding of the already sounding alarm sound is stopped.

The intrusion detection sensor 20 _m has a threatening function that threatens an intruder in response to receiving an alarm signal transmitted from the security receiver 30. As shown in FIG. 1, the intrusion detection sensor 20 _m includes a ringing unit 28, and threatens an intruder by emitting a threatening sound (intimidation message) from the ringing unit 28 when the above-described conditions are satisfied. be able to.

Incidentally, the threat functions of the intrusion sensor 20 _m, since the it is enough to intimidate intruders present in the vicinity of the intrusion sensor 20 _m, is limited to sounding unit 28 to emit rattling sounds as described above For example, a lamp or a mechanical mechanism that emits strong light using the display unit 27 or the like may be used.

(Security receiver 30)
As shown in FIG. 1, the security receiver 30 transmits a radio signal to the intrusion detection sensor 20 _m , transmits the presence detection sensor 10 _n , the antenna 31 that receives the radio signal transmitted from the intrusion detection sensor 20 _m, and the transmission A transmitting unit 32 that performs transmission processing by modulating a carrier wave of a predetermined frequency based on the data to be received, a receiving unit 33 that demodulates the data modulated in the received radio signal and executes reception processing, and the security reception A control unit 34 for overall control of the device 30, a data storage unit 35 for storing identification information of all the presence detection sensors 10 _n and the intrusion detection sensor 20 _m constituting the security system 1, and the security receiver 30. this example for operating various functions, an operating unit 36 which is like pressing a button (button), which has received the display unit 37, an intrusion detection signal transmitted from the intrusion detection sensor 20 _m Ringing in response to the provided relative to people around, the speech synthesis unit 38 for notifying that an intruder is detected, and a speaker 39.

The security receiver 30 having such a configuration is a larger device than the presence detection sensor 10 _n and the intrusion detection sensor 20 _m . For example, the display unit 37 is easily visible at a predetermined location in a building. The operation unit 36 is fixedly installed at a position where it can be easily operated. Therefore, the power source uses a fixed power source supplied via the power supply unit 40 and the plug 41.

The display unit 37 is, for example, a light emitting element such as an LED (Light Emitting Diode), a light emitting lamp, or the like. The display unit 37 responds to lighting, extinguishing, and blinking control by the control unit 34 when a wireless signal transmitted from the presence detection sensor 10 _n or the intrusion detection sensor 20 _m is received or when the operation unit 36 is operated. By changing the display form, the signal reception status, operation status, etc. are visually presented to the user. For example, when the presence detection signal transmitted from the presence detection sensor 10 _n or the intrusion detection signal transmitted from the intrusion detection sensor 20 _m is received, the presence detection sensor 10 _n and the intrusion detection sensor 20 _m are intruded. A light-emitting lamp that identifies a detection area in which an intruder can be detected blinks to notify the user of the location of the intruder.

  In addition, the display unit 37 displays information indicating the current operation mode of the crime prevention receiver 30 (either the non-warning mode or the warning mode) according to the control of the control unit 34. The non-warning mode and the warning mode that are the operation modes of the security receiver 30 will be described in detail later.

  The display unit 37 may be anything as long as the user can glance at the display result. For example, the display unit 37 uses LEDs capable of emitting red light, green light, and blue light. By changing the combination, the display form can be changed in the same manner as the above-described extinguishing, lighting, and blinking. In addition to such LEDs, for example, a small and thin EL (Electric Luminescence) light emitting panel may be used. The display unit 37 may be a liquid crystal display that can display character information and image information.

Data storage unit 35, presence sensing sensor 10 n constituting the security system _1, all the identification information of the intrusion detection sensor 20 _m, presence sensing sensor 10 _n, identifying the detection area installed intrusion detection sensor 20 _m It is stored in association with information that can be. The information that can specify the detection area is, for example, information that specifies the display unit 37 that is a light-emitting lamp associated with the detection area, or symbol information that is displayed on the display unit 37 that is a liquid crystal display or a light-emitting panel. Etc.

Thus, information associated with the data storage unit 35 is acquired from the presence detection signal transmitted from the presence detection sensor 10 _n and the identification information acquired from the intrusion detection signal transmitted from the intrusion detection sensor 20 _m . By presenting to the user via the display unit 37, the detection area where the presence of a person is detected and the detection area where an intruder is detected can be specified.

The control unit 34 transmits identification information attached to the presence detection signal demodulated by the reception unit 33 in response to the presence detection signal transmitted from the presence detection sensor 10 _n and received via the antenna 31. The identification information that uniquely specifies the presence detection sensor 10 _n stored in the data storage unit 35 is compared, the information stored in association with it is read, and the presence of the person specified by the read information is detected. The detected area is presented to the user via the display unit 37.

Further, the control unit 34 transmits the identification information attached to the intrusion detection signal demodulated by the receiving unit 33 in response to the intrusion detection signal transmitted from the intrusion detection sensor 20 _m and received through the antenna 31. And the identification information for uniquely identifying the intrusion detection sensor 20 _m stored in the data storage unit 35, read the information stored in association with each other, and through the voice synthesis unit 38 and the speaker 39. Sound an alarm sound. Then, the control unit 34 presents the detection area where the intruder specified by the read information is detected to the user via the display unit 37.

The security receiver 30 can switch the operation mode of the security receiver 30 such as the non-warning mode and the warning mode for each detection area that can be detected by the intrusion detection sensor 20 _m in the area managed and controlled by the security system 1. . The control unit 34 controls the operation mode of the security receiver 30 to be switched according to the following conditions.

The said security receiver 30, and a non-alert mode which is a reception waiting state of the existence detection signal transmitted from the is presence detection sensor 10 _n an operation mode of the normal, an operation mode of the emergency intrusion detection sensor 20 _m There are two operation modes, namely a warning mode, which is a standby state for receiving an intrusion detection signal transmitted from.

The control unit 34 controls the operation mode to be switched from the non-warning mode, which is the normal operation mode, to the warning mode in response to receiving the presence detection signal transmitted from the presence detection sensor 10 _n .

Moreover, the control part 34 starts the time measurement by the timer which is not shown in response to switching the operation mode to the alert mode. Then, the control unit 34, when receiving the intrusion detection signal transmitted from the intrusion detection sensor 20 _m between the predetermined is counted time by the timer, the speech synthesis unit 38 to execute predetermined warning operation, the display unit 37 and the like, and the transmitter 32 is controlled to generate an alarm signal and transmit it to the intrusion detection sensor _20m .

  As a predetermined alarm operation, the control unit 34 issues an alarm sound (alarm message) through, for example, the voice synthesis unit 38 and the speaker 39, or displays an alarm through the display unit 37 (for example, a red lamp lights up). ).

On the other hand, the control unit 34, the operation mode is in the state a non-alert mode, when receiving the intrusion detection signal transmitted from the intrusion detection sensor 20 _m, starts counting by a timer (not shown). Then, the control unit 34 prohibits switching to the alert mode for a certain time measured by the timer. That is, when the control unit 34 receives the intrusion detection signal transmitted from the intrusion detection sensor 20 _m in the non-warning mode, the presence detection sensor 10 _n has detected the presence of a person for a certain period of time. in also receive presence detect signals transmitted, and controls so as to prohibit a predetermined alarm operation in which the security receiver 30 is performed in an intrusion detection sensor 20 _m.

This is because there is no reaction by the presence detection sensor 10 _n and the intrusion detection sensor 20 _m installed in the area controlled by the security system 1 when the operation mode of the security receiver 30 is in the non-warning mode. If there is a response due to an intruder entering the management jurisdiction area, it is assumed that the intruder has entered the management jurisdiction area, rather than the possibility that an intruder has entered the management jurisdiction. Detecting legitimate users who are active in the area under the jurisdiction of the crime prevention system 1, taking into account that it is very likely that a legitimate user that has existed in advance has been mistakenly detected This is a control processing method for avoiding that an alarm action is executed in the case of a failure.

As a result, when the operation mode of the security receiver 30 is in the non-warning mode, a legitimate user who is active in the area controlled by the security system 1 can perform work such as gardening in the garden, for example. Even if the intrusion detection sensor 20 _m reacts and an intrusion detection signal is transmitted, the control unit 34 of the security receiver 30 that has received the intrusion detection signal enters the alert mode for a certain period of time. to prohibit to switch, the false alarm knowledge such results by executing the alarm operation each time of detecting the like passers in the presence detection sensor 10 _n can be easily avoided.

[Processing of the security receiver 30 of the security system 1]
Next, the processing operation of the security receiver 30 of the security system 1 will be described using the flowchart shown in FIG. In the initial state, the operation mode of the security receiver 30 is assumed to be a non-warning mode which is a normal mode.

First, in step S1, the security receiver 30 is in a standby state for waiting for a presence detection signal transmitted from the presence detection sensor 10 _n because the operation mode is the non-warning mode. The control unit 34 of the security receiver 30 determines whether or not the presence detection signal transmitted from the presence detection sensor 10 _n has been received. If the presence detection signal is received, the control unit 34 proceeds to step S2. If the presence detection signal is not received, the control unit 34 proceeds to step S10 while continuing the standby state for waiting for the presence detection signal. To proceed.

In step S2, the control unit 34 shifts the operation mode of the security receiver 30 from the non-warning mode to the warning mode. The security receiver 30 shifts the operation mode from the non-warning mode to the warning mode, so that it becomes an emergency operation mode and is in a standby state for receiving an intrusion detection signal transmitted from the intrusion detection sensor 20 _m .

  In step S <b> 3, the control unit 34 starts a timer by starting a timer (not shown) built in the control unit 34.

In step S4, the control unit 34 determines whether it has received an intrusion detection signal transmitted from the intrusion detection sensor 20 _m. If the intrusion detection signal is received, the control unit 34 proceeds to step S6. If the intrusion detection signal is not received, the control unit 34 proceeds to step S5.

  In step S5, the control unit 34 determines whether or not a predetermined time has elapsed due to timing by a timer (not shown) started in step S3. If the predetermined time has elapsed, the control unit 34 proceeds to step S9. If the predetermined time has not elapsed, the control unit 34 returns to step S4 and waits for reception of an intrusion detection signal. Continue state.

In step S6, the control unit 34 reads the identification information attached to the received intrusion detection signal, and generates an alarm signal with the read identification information attached. And the control part 34 controls the transmission part 32, and transmits the alarm signal produced | generated via the antenna 31 to the intrusion detection sensor _20m .

  In step S7, the control unit 34 controls the display unit 37, the voice synthesis unit 38, and the like to execute a predetermined alarm operation. For example, the control unit 34 controls the voice synthesis unit 38 to output an alarm sound via the speaker 39.

  In step S8, the control unit 34 determines whether or not the user has operated the operation unit 36 to instruct to stop the predetermined alarm operation executed in step S7. For example, the control unit 34 determines whether or not a stop button (not shown) of the operation unit 36 is pressed. When the control unit 34 is instructed to stop the predetermined alarm operation, the process proceeds to step S9. On the other hand, when it is not instructed to stop the predetermined alarm operation, the control unit 34 returns the process to step S6.

In step S9, the control unit 34 shifts the operation mode of the security receiver 30 from the warning mode to the non-warning mode. The security receiver 30 shifts the operation mode from the warning mode to the non-warning mode, and thus enters the normal operation mode and enters a reception waiting state for the presence detection signal transmitted from the presence detection sensor 10 _n . In addition, when progressing from step S12 mentioned later to the said step S9, since it is a non-warning mode beforehand, this step is passed.

In step S10, the control unit 34 determines whether it has received an intrusion detection signal transmitted from the intrusion detection sensor 20 _m. If the intrusion detection signal is received, the control unit 34 proceeds to step S11. If the intrusion detection signal is not received, the control unit 34 returns the process to step S1.

  In step S <b> 11, the control unit 34 starts a timer by starting a timer (not shown) built in the control unit 34.

  In step S12, the control unit 34 determines whether or not a predetermined time has elapsed due to time measurement by a timer (not shown) started in step S11. When the predetermined time has elapsed, the control unit 34 proceeds to step S9. When the predetermined time has not elapsed, the control unit 34 continues the standby state until the predetermined time has elapsed.

As described above, the control unit 34 of the security receiver 30 of the security system 1 shown as the embodiment of the present invention is installed so as to detect the presence of a person outside the area managed by the security system 1. When the presence detection sensor 10 _n detects the presence of a person and detects intrusion by the intrusion detection sensor 20 _m during a predetermined time after the operation mode is switched from the non-warning mode to the warning mode, controlled so as to perform the alarm operation is controlled so as threatening by intrusion detection sensor 20 _m is performed.

  Therefore, since the alarm is not easily generated by the reaction of only one detection sensor and the alarm operation is not executed, the occurrence of false notification can be suppressed, and the area controlled by the crime prevention system 1 It is possible to reliably report any abnormal state that has occurred within the system.

Further, when the operation mode of the security receiver 30 is in the non-warning mode, an intrusion detection sensor 20 _m detects a legitimate user who is active in the area managed by the security system 1 and detects intrusion. Even if the signal is transmitted, the control unit 34 of the security receiver 30 that has received the intrusion detection signal switches to the warning mode by continuing the standby state for a certain period of time as shown in step S12. prohibits, hence security receiver 30, in order to prohibit to perform a warning operation of intrusion detection sensor 20 _m, such as alarm action whenever detecting the mere passers in the presence detection sensor 10 _n from being executed Misreporting can be easily avoided.

  The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made depending on the design and the like as long as the technical idea according to the present invention is not deviated from this embodiment. Of course, it is possible to change.

It is a figure for demonstrating the structure of the crime prevention system shown as embodiment of this invention. It is a flowchart for demonstrating the processing operation of the said crime prevention system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Security system 10 _n Presence detection sensor 13 Control part 15 Sensor part 20 _m Intrusion detection sensor 24 Control part 26 Sensor part 28 Ringing part 30 Security receiver 34 Control part 37 Display part 38 Speech synthesis part 39 Speaker

Claims (2)

A first detection sensor for detecting the presence of a person outside the predetermined area; and a second detection sensor for detecting any abnormal state within the predetermined area; and detection by the first detection sensor and the second detection sensor. A security system that performs a predetermined alarm action according to the result,
The security system controls to execute the predetermined alarm operation when an abnormal state is detected by the second detection sensor during a predetermined time after the presence of a person is detected by the first detection sensor. ,
Control means for controlling to prohibit execution of the predetermined alarm operation for a predetermined time when the presence of a person is not detected by the first detection sensor and an abnormal state is detected by the second detection sensor A crime prevention system characterized by having A first detection sensor that transmits a detection signal as a wireless signal in response to detection of the presence of a person outside the predetermined area; and a detection signal in response to detection of any abnormal state in the predetermined area. A second detection sensor that transmits the first detection sensor, and a security receiver that controls to execute a predetermined alarm operation in response to receiving the detection signal transmitted by the first detection sensor and the second detection sensor. A security system,
The security receiver, in response to receiving a detection signal transmitted by the first detection sensor, mode switching means for switching from the non-warning mode to the warning mode;
When a detection signal transmitted by the second detection sensor is received during a predetermined time after being switched to the warning mode by the mode switching means, the control is performed to execute the predetermined alarm operation,
In the non-warning mode, when receiving a detection signal transmitted by the second detection sensor, control means for controlling the mode switching means to prohibit switching to the warning mode for a certain period of time. Security system characterized by this.

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