JP7688820B2 - Security Device - Google Patents

Description

This invention relates to a security device that detects the occurrence of an abnormal event, such as the intrusion of a suspicious person, and issues an alert.

So-called security devices are often installed in offices, schools, commercial facilities, and other facilities where no one is using them at night or on holidays. Security devices are also increasingly being used in ordinary homes to ensure safety at night when residents are often out and about or asleep and out of sight. For example, as shown in FIG. 14, security devices 10 installed in various guarded facilities 1 are connected to various abnormality detection sensors such as a fire sensor SX1 and an intrusion sensor SX2.

The fire sensor SX1 includes a smoke sensor that detects smoke and a heat sensor that detects heat. The intrusion sensor SX2 includes a human presence sensor that uses infrared rays, ultrasound, visible light, etc. to detect the presence of humans, an opening/closing sensor that uses magnetism or acceleration to detect the opening/closing of doors and windows, and an impact sensor that detects the impact when a window or door is broken. These various abnormality detection sensors are connected to the sensor input circuit section 11 of the security device 10. The sensor input circuit section 11 of the security device 10 monitors the output signals from each abnormality detection sensor SX1, SX2, ..., and when it detects the occurrence of an abnormality, it reports it via the wide area network 2 to a specified reporting destination, for example, the security destination accommodation device 30 of the security company 3.

The wide area network 2 is a communication network such as a general public telephone network, a mobile phone network, or the Internet. At the security company 3, when the guarded accommodation device 30 receives a report from the security device 10 of the guarded facility 1, it notifies the monitor 40 by, for example, emitting a sound to indicate the received message. The monitor 40 operates the guarded accommodation device 30 to identify the source of the report and instructs the security guard 50 to be dispatched to the source of the report. This allows the security guard to be swiftly dispatched to the guarded facility 1 where an abnormality has occurred and to take appropriate action.

The security device requires state switching operations to switch between a security state (monitoring state) and a non-security state (non-monitoring state). In the security state, the output signal from the anomaly detection sensor is monitored, and an abnormality is reported if one is detected. In the non-security state, the output signal from the anomaly detection sensor is not monitored, and no report is made. Therefore, via the operation panel connected to the security device, the device is switched from the non-security state to the security state when leaving work or going out, and from the security state to the non-security state when arriving at work or returning home.

Patent Document 1, described later, discloses an invention in which a mobile phone terminal calls a management center device and the management center device switches between starting and ending mechanical security for a specified security device (security state/non-security state) depending on the sub-address number that the call is addressed to. In the case of the invention disclosed in Patent Document 1, there is no need to provide an operation panel on the security device, and the security state/non-security state of the security device can be switched from any convenient position. This is expected to simplify the configuration of the security device and improve convenience for users of the security device.

JP 2005-94601 A

While the invention disclosed in Patent Document 1 has advantages, it also has the disadvantage that if a failure occurs in the network connecting the management center device and the mobile phone terminal, it is not possible to switch the security device between security and non-security states. Also, if the mobile phone terminal is forgotten or dropped and is no longer available, it is not possible to switch the security device between security and non-security states. For this reason, it is necessary to provide the security device with an operation terminal (operation panel) that allows switching between security and non-security states.

However, when switching between the security state and non-security state of a security device through an operation terminal, the user must enter the facility to be secured and operate the operation terminal. As a result, the user is detected as an intruder, an alarm buzzer sounds, and the user becomes the subject of a report (alert) to a designated reporting destination such as a security company. In order to prevent unnecessary reports (alerts) from being made in such cases, security devices that switch between the security state and non-security state through an operation terminal have traditionally been provided with a security start guard sensor function and a security release guard sensor function.

The security start guard sensor function prevents an alarm from being issued when the intrusion sensor detects a user (facility personnel) as an intruder as soon as the security start operation on the operating terminal switches to security mode. Specifically, this function prevents an alarm from being issued if the intrusion sensor stops responding between the security start operation and the elapse of a predetermined alarm grace period. If the intrusion sensor responds after the alarm grace period has elapsed, an alarm is issued as there is a high possibility that this is an abnormal intrusion (an intrusion by someone other than a legitimate user). When the security start operation is performed, a response is taken via the operating terminal on which the operation was performed, encouraging the user to leave the room (leave) by sound such as a buzzer or a display. This response ends after the alarm grace period has elapsed.

The security disabling guard sensor function prevents an alarm from being issued if the user (facility personnel) is detected as an intruder by the intrusion sensor before the security disabling operation is performed when switching to a non-security state by disabling the security on the operating terminal. Specifically, this function prevents an alarm from being issued if the security disabling operation is performed on the operating terminal between the time the intrusion sensor detects an intrusion and the time a predetermined grace period for alarm has elapsed. If the security disabling operation is not performed before the grace period for alarm has elapsed, an alarm is issued as this is likely an abnormal intrusion. When the intrusion sensor detects an intrusion, a response is taken to encourage the user to disabling the security, for example by sounding or displaying a buzzer or other sound via the operating terminal on which the operation is performed. This response ends if the security disabling operation is performed within the grace period for alarm.

However, unlike the buzzer that sounds when the security release guard sensor function is activated, the volume of the buzzer is louder because it also serves as a warning to intruders, unlike the buzzer that sounds when the security start guard sensor function is activated. For this reason, legitimate users (facility personnel) are surprised even if they know what is going on, and they rush to release the security, which can be annoying.

In view of the above, the object of this invention is to eliminate the annoyance of emitting a warning sound (threatening sound) to alert the user of an intruder during a security device that transitions to a non-security state by performing a security release operation via an operating terminal.

In order to solve the above problems, the security device of the invention described in claim 1 is:
a sensor detection means for detecting an intrusion based on an output signal from an intrusion sensor that detects an intrusion by a person or the like;
a notification control means for controlling the sensor detection means to notify the occurrence of an intrusion when the intrusion is detected by the sensor detection means;
an operation state switching means for switching between a security state in which an alarm is issued when an intrusion occurs and a non-security state in which no alarm is issued in response to an instruction input from a user;
an instruction input receiving means for receiving the instruction input from the user, the instruction input including authentication information indicating that the user is a legitimate user;
a base station communication means for enabling communication with a wireless communication terminal through a base station that enables connection of a wireless communication terminal that has been authenticated by wireless communication;
Equipped with
The notification control means, when the device itself is in the guard state and an intrusion has been detected by the sensor detection means,
if there is no wireless communication terminal capable of communicating through the base station communication means, immediately start to notify the occurrence of an intrusion by a warning sound that is not loud, and if the instruction input for switching to the non-security state is not received through the instruction input receiving means within a predetermined time, start to emit a loud threatening sound,
When the wireless communication terminal is authenticated by the base station and is capable of communicating through the base station communication means, notification of the occurrence of an intrusion is suppressed, and when the instruction input for switching to the non-security state is not received through the instruction input receiving means within a predetermined time, emission of a loud threatening sound is started.
It is characterized by:

According to the security device of the invention described in claim 1, the operation state switching means can switch between a security state and a non-security state. In addition, the base station communication means can communicate with an authenticated wireless communication terminal through a base station that enables connection of the authenticated wireless communication terminal through wireless communication. When the security state is switched to, if there is a wireless communication terminal that has been authenticated by the base station and is able to communicate through the base station communication means, the notification control means controls so as not to notify the occurrence of an intrusion.

As a result, when switching from a security state to a non-security state, if a wireless communication terminal carried by an authorized user is able to communicate with the security device, the notification process is suppressed when an intruder is detected. This allows the authorized user to safely perform the operation to instruct the security device to switch from a security state to a non-security state.

According to this invention, in a security device that transitions to a non-security state by performing a security release operation via an operating terminal, it is possible to prevent the emission of an intimidating sound that alerts the user to an intruder when the security release operation is performed, eliminating the inconvenience to the user when switching to a non-security state.

1 is a diagram for explaining a configuration example of a security system configured using a security device according to an embodiment; 1 is a block diagram for explaining a configuration example of a security device according to an embodiment; 2 is a block diagram for explaining a configuration example of an operation terminal connected to a security device of an embodiment. FIG. A block diagram for explaining an example configuration of a wireless communication terminal that can be connected to the security device of the embodiment via an access point (base station). 11 is a flowchart for explaining the processing performed when switching from a security state to a non-security state in the security device of the embodiment. 6 is a flowchart for explaining an intrusion response process executed in step S109 of the flowchart of FIG. 5 . 13 is a flowchart illustrating another example of processing when switching from a security state to a non-security state in the security device of the embodiment. 13 is a flowchart illustrating another example of processing when switching from a security state to a non-security state in the security device of the embodiment. FIG. 11 is a block diagram for explaining another example of the configuration of the security device according to the embodiment. A block diagram for explaining another example configuration of a wireless communication terminal that can be connected to the security device of the embodiment via an access point (base station). 10 is a flowchart for explaining the processing executed in the security device having the configuration shown in FIG. 9 when switching from a security state to a non-security state. 11 is a sequence diagram for explaining processing in a security system configured using the security device shown in FIG. 9 and the wireless communication terminal shown in FIG. 10. 11 is a sequence diagram for explaining processing in a security system configured using the security device shown in FIG. 9 and the wireless communication terminal shown in FIG. 10. FIG. 1 is a diagram for explaining a conventional example of a security system.

Below, an embodiment of a security device according to the present invention will be described with reference to the drawings. The security device of the embodiment described below is installed in various facilities to be guarded, such as offices, schools, commercial facilities, and private homes. The security device detects the intrusion of a suspicious person or the like, emits an alarm sound (threatening sound), and automatically reports the incident to a specified contact point, such as a security company. When the security device described below detects the outbreak of a fire, an intrusion by a person or the like, or a door or window being broken allowing a person or the like to enter, it can report this to the surrounding area or to a specified contact point.

However, a problem with the security device in the embodiment described below is the emission of an alarm sound when a legitimate user cancels the security mode. For this reason, the security device in the embodiment described below will be described using an example in which, when switching from the security mode to the non-security mode, a human intrusion is detected by a human sensor or a door or window opening/closing sensor, and an alarm is issued to those in the vicinity.

[Security system configuration example]
Fig. 1 is a diagram for explaining an example of the configuration of a security system configured using a security device 100 according to this embodiment. As shown in Fig. 1, the security device 100 is connected to a security destination accommodation device 30 of a specified security company via a wide area network 2. The wide area network 2 is a communication network such as a general public telephone network, a mobile phone network, or the Internet. When the security destination accommodation device 30 receives a report from the security device 100, it identifies the source of the report and emits a report message or displays a map on a display screen to indicate the location of the source of the report, so that a monitor can instruct a security guard to be dispatched.

The security device 100 is an embodiment of the security device according to the present invention, and is installed in a safe location indoors at a facility to be guarded. An operation terminal 200 and multiple intrusion sensors SS1, SS2, ... are connected to the security device 100. The operation terminal 200 is installed indoors at an appropriate location, for example, near an entrance/exit, at the facility to be guarded, and has functions such as accepting operation inputs for switching between a guarded state and a non-guarded state, and emitting an alarm sound. Note that the alarm sound also includes a buzzer sound used as an intimidating sound.

The intrusion sensors SS1, SS2, ... detect the intrusion of a person or the like and supply an output signal to the security device. The intrusion sensors SS1, SS2, ... are motion sensors that use infrared rays, ultrasound, visible light, etc. to detect the presence of a person, and opening/closing sensors that use magnetism or acceleration to detect the opening and closing of doors and windows. The intrusion sensors SS1, SS2, ... are installed at locations where people or the like may intrude, such as entrances and windows. The reason they are referred to as people or the like is because the intrusion of non-human beings, such as animals, can also be detected as an abnormality.

In this embodiment, the "security state" refers to a state in which the output signals from the intrusion sensors SS1, SS2, ... are monitored, and a report can be made if an intrusion is detected. The "non-security state" refers to a state in which the output signals from the intrusion detection sensors are not monitored, and no report is made. Therefore, when the user of the security device 100 leaves work or goes out, the user of the security device 100 switches the security device 100 from the non-security state to the security state through the operation terminal 200, so that a report can be made automatically if an intrusion is detected. When the user of the security device 100 leaves work or goes out (when returning from going out), the user of the security device 100 switches the security device 100 from the security state to the non-security state through the operation terminal 200, so that a report is not made automatically.

The security device 100 is also connected to an access point (referred to as AP in the figure, and hereafter abbreviated to AP) 300, which functions as a so-called base station, via a LAN (Local Area Network). In this embodiment, the AP 300 is compatible with the Wi-Fi (registered trademark) standard. The AP 300 performs wireless communication with nearby wireless communication terminals, and performs authentication processing using an ESSID (Extended Service Set Identifier) and password assigned to the device itself. The AP 300 enables wireless communication terminals that have been authenticated by the authentication processing to connect to the security device 100 via the device itself.

The wireless communication terminal 400 is a general-purpose terminal such as a smartphone or tablet PC (Personal Computer), has a wireless LAN interface conforming to the Wi-Fi (registered trademark) standard, and can connect to the LAN via a nearby AP (Access Point). In this embodiment, the wireless communication terminal 400 is owned by a legitimate user of the security device 100, and is preset with the ESSID and password assigned to the AP 300 connected to the security device 100. Therefore, the wireless communication terminal 400 can wirelessly communicate with the AP 300, obtain authentication, and connect to the security device 100 via the LAN.

The security device 100 also has a security start guard sensor function and a security release guard sensor function. That is, immediately after switching from the non-security state to the security state, the security start guard sensor function works. In this case, an alarm sound is emitted to encourage people to leave, and even if an intrusion is detected through the intrusion sensors SS1, SS2, etc., no report (alert) is issued if the intrusion sensor response ceases within a specified grace period for alarm.

In addition, when switching from a security state to a non-security state, the security release guard sensor function is activated. In this case, when a legitimate user enters the security facility to switch to the non-security state, the intrusion sensor detects the intrusion and emits an alarm sound. In this case, the alarm sound also serves as a warning sound for suspicious intruders, so a loud alarm sound (threatening sound) is emitted. However, if the operation to switch from a security state to a non-security state is performed within the specified alarm grace period, no report (alarm) is issued.

Furthermore, in the security device 100, even if the security release guard sensor function is activated, if the wireless communication terminal 400 carried by an authorized user is connected to the security device 100 via the AP 300, an alarm sound (threatening sound) will not be emitted. As a result, when an authorized user carrying the wireless communication terminal 400 enters a guarded facility and operates the operation terminal 200 to switch the security device 100 from a guarded state to a non-guarded state, a threatening sound will not be emitted. Therefore, the authorized user can calmly perform the operation to switch to the non-guarded state without being startled or panicked by the threatening sound.

Below, configuration examples of the security device 100, the operation terminal 200, and the wireless communication terminal 400 are described, and the processing performed by the security device 100 is described in detail. Note that, since the AP 300 can basically be a commercially available access point (device) with a general configuration and functions, a detailed description of its configuration etc. is omitted.

[Configuration example of security device 100]
2 is a block diagram for explaining a configuration example of the security device 100. The connection terminal 101T constitutes a connection end with the wide area network 2. The communication I/F (Interface) 101 performs communication processing through the wide area network 2. That is, the communication I/F 101 converts a signal addressed to the device itself transmitted via the wide area network 2 into a signal in a format that can be processed by the device itself and takes in the signal. The communication I/F 101 also converts a signal to be transmitted from the device itself to a target destination into a signal in a transmission format and sends the signal to the wide area network 2 to transmit it to the destination.

The control unit 102 is a microprocessor equipped with a CPU (Central Processing Unit), ROM (Read Only Memory), RAM (Random Access Memory), non-volatile memory, etc. (not shown), and controls each part of the security device 100. The storage device 103 is a device part consisting of a recording medium such as an SSD (Solid State Drive) and its driver, and records, reads, changes, deletes, etc. various data. In addition to storing and holding necessary data and programs, the storage device 103 is also used as a working area for temporarily storing intermediate data generated in various processes.

The connection terminal 104T constitutes a connection end with the operation terminal 200, and the operation terminal communication unit 104 functions as an interface with the operation terminal 200, and is a part that transmits and receives information to and from the operation terminal 200. In other words, the operation terminal communication unit 104 receives information from the operation terminal 200, converts it into information in a format that can be processed by the operation terminal 200 itself, and supplies it to the control unit 102, etc., and also converts information to be sent from the operation terminal itself into a format for sending, and supplies it to the operation terminal 200.

The connection terminals 105T1, 105T2, ... constitute the connection ends with the intrusion sensors SS1, SS2, .... The sensor detection unit 105 monitors the output signals from the intrusion sensors SS1, SS2, ..., and when it detects an intrusion, it notifies the control unit 102. The sensor detection unit 105 can also determine which intrusion sensor detected the intrusion, and notify the control unit 102 of the result.

The connection terminal 106T constitutes the connection end with the AP300. The IP (Internet Protocol) communication control unit 106 enables communication with the AP300 via the LAN, and also enables communication with a wireless communication terminal that has been authenticated by the AP300 via the AP300 and the LAN. In other words, the IP communication control unit 106 enables communication with a wireless communication terminal 400, etc., that has been authenticated by the AP300, via the LAN and the AP300, where communication is performed using IP (Internet Protocol).

When an intrusion is detected through the intrusion sensors SS1, SS2, ..., under the control of the control unit 102, the report processing unit 107 performs processing to form report data reporting the intrusion and transmit this to the guard accommodation device 30 of a specified security company. In this case, the report data formed by the report processing unit 107 is sent to the wide area network 2 via the communication I/F 101 and the connection terminal 101T, and transmitted to the guard accommodation device 30.

Under the control of the control unit 102, the buzzer sounding control unit 108 forms a buzzer sounding instruction and transmits it to the operation terminal 200 via the operation terminal communication unit 104 and the connection terminal 104T, causing the buzzer equipped in the operation terminal 200 to sound. Also, under the control of the control unit 102, the buzzer sounding control unit 108 supplies audio data for emitting a buzzer sound or the like to the audio processing unit 109, and performs processing to emit the sound from the speaker 110.

Under the control of the control unit 102 and the buzzer sound control unit 108, the audio processing unit 109 receives audio data for emitting guidance messages, buzzer sounds, etc., forms an analog audio signal, and supplies this to the speaker 110. The speaker 110 receives an analog audio signal from the audio processing unit 109 and emits a sound corresponding to the analog audio signal. The audio processing unit 109 is capable of adjusting the volume under the control of the control unit 102 and the buzzer sound control unit 108. This allows, for example, a message encouraging people to leave to be emitted at an appropriate volume when the security start guard sensor function is in effect. Also, when an intrusion is detected through the intrusion sensors SS1, SS2, etc., including when the security release guard sensor function is in effect, a warning sound (threatening sound) can be emitted at a high volume.

The AP communication unit 111 realizes the function of communicating with the AP 300 through the IP communication control unit 106, the connection terminal 106T, and further through the LAN. Therefore, by communicating with the AP 300 through the AP communication unit 111, the control unit 102 of the security device 100 can properly determine whether or not there is a wireless communication terminal 400 that has been authenticated by the AP 300 and is able to connect to the security device 100.

As described below, the security device 100 configured in this way can switch between a security state and a non-security state via the operation terminal 200. That is, the control unit 102 receives a security start instruction via the connection terminal 104T and the operation terminal communication unit 104, and switches the operation state of the device from a non-security state to a security state, or from a security state to a non-security state. When switching the operation state of the device from a non-security state to a security state, the control unit 102 activates the security start guard sensor function described above. Also, when the operation state of the device is in a security state, if the sensor detection unit 105 detects an intrusion by the intrusion sensors SS1, SS2, ..., the control unit 102 activates the security release guard sensor function described above.

In addition, when the control unit 102 detects an intrusion via the sensor detection unit 105 while the operating state of the device is in a security state, the control unit 102 checks, via the AP communication unit 111, whether or not there is a wireless communication terminal 400 that has been authenticated by the AP 300 and is connected to the device via the AP 300. If it is confirmed that there is a wireless communication terminal 400 connected to the device, the control unit 102 suppresses the emission of an alarm sound (threatening sound). In other words, the control unit 102 does not instruct the operation terminal 200 or the audio processing unit 109 to emit an alarm sound via the buzzer sound control unit 108.

The control unit 102 checks whether or not there is a wireless communication terminal 400 connected to the device through the AP 300, and if there is no wireless communication terminal 400 connected to the device, it controls the buzzer sound control unit 108 as usual to emit an alarm sound (threatening sound). In this case, if the time from the time when the intrusion was detected has elapsed a predetermined alarm grace period, the control unit 102 controls the report processing unit 107 to report to the security accommodation device 30 of a specified security company.

[Example of configuration of operation terminal 200]
3 is a block diagram for explaining a configuration example of operation terminal 200 connected to security device 100. Connection terminal 201T constitutes a connection end with security device 100. I/F (Interface) 201 performs communication processing with security device 100. That is, I/F 201 converts a signal from security device 100 into a signal in a format that can be processed by the own device and imports it. In addition, I/F 201 converts a signal to be transmitted from the own device to security device 100 into a signal in a transmission format and transmits it to security device 100.

The control unit 202 is a microprocessor equipped with a CPU, ROM, RAM, non-volatile memory, etc. (not shown), and controls each part of the operation terminal 200. The storage unit 203 is a device unit consisting of a recording medium such as a non-volatile memory and its driver, and records, reads, changes, deletes, etc., various types of data. In addition to storing and holding necessary data and programs, the storage unit 203 is also used as a working area for temporarily storing intermediate data generated in various processes.

The operation unit 204 has operation keys such as several function keys and numeric keys, accepts operation input from the user, converts information corresponding to the accepted operation input into an electrical signal, and notifies the control unit 202. Therefore, by the user performing operation input through the operation unit 204, the security device 100 can be switched from a non-security state to a security state, or from a security state to a non-security state. The display unit 205 is composed of, for example, an LCD (Liquid Crystal Display), and displays various guidance messages. Specifically, the display unit 205 displays operation guidance, warning messages, messages indicating the status of the security device, and the like.

Under the control of the control unit 202, the audio processing unit 206 receives audio data for emitting guidance messages, buzzer sounds, etc., forms an analog audio signal, and supplies this to the speaker 207. The speaker 207 receives an analog audio signal from the audio processing unit 206 and emits a sound corresponding to the analog audio signal. The audio processing unit 206 is capable of adjusting the volume under the control of the control unit 202. This allows a message encouraging people to leave to be emitted at an appropriate volume when the security start guard sensor function is in operation in response to an instruction from the security device 100. Also, when an intrusion is detected through the intrusion sensors SS1, SS2, etc., including when the security release guard sensor function is in operation in response to an instruction from the security device 100, a warning sound (threatening sound) can be emitted at a high volume.

The LED unit 208 is equipped with an LED (Light Emitting Diode), and under the control of the control unit 202, displays the status of the security device 100 by turning the LED on, off, blinking, etc. That is, in response to a status notification from the security device 100, for example, when the LED is off, it indicates that the security device 10 is in a non-security state, and when the LED is on, it indicates that the security device 100 is in a security state. Also, when the security device 100 is operating the security start guard sensor function or security release guard sensor function, it notifies the status by blinking the LED. It is also possible to provide multiple LEDs of the same color or multiple LEDs of different colors in the LED unit 208 so as to notify various states of the security device 100 in detail.

[Example of configuration of wireless communication terminal 400]
FIG. 4 is a block diagram for explaining a configuration example of a wireless communication terminal 400 that can be connected to the security device 100 via the AP 300. The transmitting/receiving antenna 401A and the wireless communication unit 401 are parts that enable communication through a mobile phone network. The control unit 402 is a microprocessor equipped with a CPU, ROM, RAM, non-volatile memory, etc. (not shown), and controls each part of the wireless communication terminal 400. The storage unit 403 is a device unit consisting of a recording medium such as a semiconductor memory and its driver, and records, reads, changes, deletes, etc. various data. The storage unit 403 stores and holds necessary data and programs, and is also used as a working area for temporarily storing intermediate data generated in various processes.

The operation unit 404 is a part that is equipped with a power on/off key and several function keys. The IP communication control unit 405 communicates with a nearby AP through the short-range wireless unit 412 and the transmission/reception antenna 412A described below, and when authentication is successful, it enables connection to the LAN to which the AP is connected via that AP. Under the control of the IP communication control unit 405, the short-range wireless unit 412 and the transmission/reception antenna 412A use a communication method that complies with the Wi-Fi standard to perform wireless communication with a nearby AP (access point) such as AP300 and obtain authentication. This makes it possible to connect to the authenticated AP and perform wireless communication.

When the wireless communication unit 401 connects a telephone line through a mobile phone network, the telephone call processing unit 406 forms an analog voice signal from the voice data transmitted from the other party, supplies it to the receiver (speaker) 407, and emits the other party's voice. The telephone call processing unit 406 also converts the voice (analog voice signal) of the user of the device collected through the transmitter (microphone) 408 into a digital signal, and transmits it to the other party through the telephone line connected to the wireless communication unit 401 through the mobile phone network. In this way, the telephone call processing unit 406 cooperates with the receiver 407 and the transmitter 408 to enable a telephone call with the other party connected through the telephone line. The touch panel 409 is composed of a display unit 410 configured using, for example, an LCD or the like, and a touch sensor 411 provided on the display screen of the display unit 410, and provides display information to the user and receives instruction input from the user and supplies it to the control unit 402. In other words, the touch panel functions as a user interface.

In this way, the wireless communication terminal 400 can access a mobile phone network via the wireless communication unit 401 and the transmission/reception antenna 401A, and can connect a telephone line to make a call. Furthermore, the wireless communication terminal 400 can communicate with a nearby AP via the short-range wireless unit 412 and the transmission/reception antenna 412A, and when authentication is successful, can connect via that AP to the LAN to which that AP is connected. In this case, the wireless communication terminal 400 can communicate with devices connected to that LAN, and connect to the Internet via devices connected to that LAN to view information, etc.

[Interaction between security device 100, operation terminal 200, AP 300, and wireless communication terminal 400]
The cooperation between the security device 100, the operation terminal 200, the wireless communication terminal 400, and the AP 300 described with reference to Figures 2 to 4 will be described. The security device 100 is switched from a non-security state to a security state, and from a security state to a non-security state, through the operation terminal 200. The operation terminal 200 has a display function and a voice output function (sound emission function), and is capable of providing guidance and various notifications through the display output and the voice output. Therefore, even when an intrusion is detected through the intrusion sensors SS1, SS2, ..., the sound emission function of the operation terminal 200 is used in response to control from the security device 100 to emit a warning sound (threatening sound).

As described above, the AP300 has a commercially available general configuration and functions. However, in this example, the transmission output of the AP300 is adjusted so that communication is possible within a radius of about 5 m (meters) from the AP300. The AP300 sends out an ESSID at a predetermined timing, and performs connection authentication processing when a connection request is made in response to the ESSID. As described above, the ESSID and password of the AP300 are set in advance in the wireless communication terminal 400. Therefore, when the wireless communication terminal 400 receives an ESSID from the AP300 via the transmission/reception antenna 412A and the short-range wireless unit 412, the IP communication control unit 405 functions to send a connection request to the AP300.

In response, the AP 300 requests the provision of a password for authentication, and if authentication is successful, the AP 300 and the wireless communication terminal 400 communicate periodically to maintain a connection. This state is detected through the IP communication control unit 106 and the AP communication unit 111 of the security device 100, and the wireless communication terminal 400 becomes wirelessly connected to the security device 100 through the AP 300.

If periodic communication between AP300 and wireless communication terminal 400 becomes impossible, the connection state is released and re-authentication is required. In this way, when the wireless communication terminal 400 held by the legitimate user of the security device 100 approaches close enough to the AP300 that wireless communication is possible, the wireless communication terminal 400 is authenticated by the AP300 and automatically connected to the security device 100 via the AP300.

The security device 100 utilizes the cooperation with each device as described above to prevent the emission of unnecessary alarm sounds (threatening sounds) when switching from a security state to a non-security state. Next, we will specifically explain the process of switching from a security state to a non-security state in the security device 100 of the security system shown in Figure 1, which is configured using the security device 100, operation terminal 200, wireless communication terminal 400, and AP 300 described using Figures 2 to 4.

[Processing when switching from security state to non-security state in security device 100]
<Example of when the buzzer suppression function is activated before an intrusion is detected>
5 is a flow chart for explaining the process when switching from a security state to a non-security state in security device 100, and is an example of a case where a buzzer sound suppression function that suppresses emission of a buzzer sound as an intimidating sound before a user's intrusion is detected is activated. The process shown in FIG. 5 is a process during security that is executed by control unit 102 of security device 100 when the non-security state is switched to the security state via operation terminal 200.

When the process shown in FIG. 5 is executed, the control unit 102 checks the state of the AP communication unit 111 and determines whether or not the wireless communication terminal 400 carried by a legitimate user is connected through the AP 300 (step S101). If it is determined in the determination process of step S101 that the wireless communication terminal 400 is connected (AP connected), the control unit 102 suppresses the buzzer sound by not issuing an instruction to the buzzer sound control unit 108 (step S102). The process of step S102 is such that even if an intrusion is detected through the intrusion sensors SS1, SS2, ... and the sensor detection unit 105, no instruction is issued to the buzzer sound control unit 108, and an alarm sound (threatening sound) is not emitted.

Then, the control unit 102 accepts a security release operation by a legitimate user through the operation terminal 200 via the connection terminal 104T and the operation terminal communication unit 104 (step S103). In step S103, for example, the control unit 102 requests the user to enter a password or performs fingerprint authentication through a fingerprint authentication mechanism (not shown) provided in the operation terminal 200, thereby only accepting security release operations by legitimate users.

Next, the control unit 102 determines whether or not a security release operation has been received through the operation terminal 200 (step S104). If it is determined in step S104 that a security release operation has been received, the control unit 102 controls each related unit to transition (switch) the operating state of the device to a non-security state (step S105). After this, the process shown in FIG. 5 is terminated.

In addition, suppose that in the determination process of step S104, it is determined that the security disarm operation has not been accepted. In this case, the control unit 102 determines whether or not a predetermined time has elapsed since the buzzer sound was suppressed in step S102 (whether or not a timeout has occurred) (step S106). In the security device 100 of this embodiment, in step S102, if the security disarm operation is not performed within, for example, 30 seconds after the buzzer sound is suppressed, it is determined that a timeout has occurred.

If it is determined in the determination process of step S106 that the timeout has not occurred, the process from step S103 is repeated. If it is determined in the determination process of step S106 that the timeout has occurred, the control unit 102 releases the inhibition of the buzzer sound (step S107) and repeats the process from step S101. In other words, the guard state is maintained.

If it is determined in the determination process of step S101 that the wireless communication terminal 400 is not connected (no AP connection), the control unit 102 determines whether or not an intrusion has been detected based on the output signal from the sensor detection unit 105 (step S108). If it is determined in the determination process of step S108 that an intrusion has not been detected, the process from step S101 is repeated. If it is determined in the determination process of step S108 that an intrusion has been detected, an intrusion response process described below is executed, and the process shown in FIG. 5 is terminated.

Figure 6 is a flow chart for explaining the intrusion response process executed in step S109 of Figure 5. When the intrusion response process of Figure 6 is executed, the control unit 102 of the security device 100 first controls the buzzer sound control unit 108 to start sounding the buzzer as an alarm sound (threatening sound) (step S201). Specifically, the control unit 102 controls the buzzer sound control unit 108 and issues an instruction to the operation terminal 200 via the operation terminal communication unit 104 and the connection terminal 104T to sound the buzzer as a threatening sound. The control unit 102 also controls the buzzer sound control unit 108 to emit a buzzer sound as a threatening sound via the audio processing unit 109 and the speaker 110. This makes it possible to notify the surrounding area of the occurrence of an intrusion.

Then, the control unit 102 accepts a security deactivation operation by a legitimate user through the operation terminal 200 (step S202). The process of step S202 is similar to the process of step S103 in FIG. 5, and takes into consideration the case where a legitimate user who does not possess a wireless communication terminal 400 performs a security deactivation operation through the operation terminal 200. The control unit 102 then determines whether or not a security deactivation operation has been performed by a legitimate user (step S203).

When it is determined in the determination process of step S203 that a security release operation has been performed by a legitimate user, the control unit 102 transitions the operating state of the device to a non-security state (step S204). Specifically, the process of step S204 controls the buzzer sound control unit 108 to stop the sound of the buzzer that is being emitted as an alarm sound and a threatening sound, and then switches the operating state of the device to a non-security state.

In addition, assume that in the determination process of step S203, it is determined that the security release operation has not been performed by a legitimate user. In this case, the control unit 102 determines whether or not a predetermined time has elapsed since the buzzer started sounding in step S201 (whether or not a timeout has occurred) (step S205). In the determination process of step S205, if the security release operation has not been performed within, for example, 30 seconds after the buzzer started sounding, it is determined that a timeout has occurred.

If it is determined in the determination process of step S206 that a timeout has not occurred, the process from step S202 is repeated. If it is determined in the determination process of step S206 that a timeout has occurred, there is a high possibility that a truly abnormal intrusion (an intrusion by someone other than a legitimate user) has occurred. In this case, the control unit 102 continues to sound the buzzer and controls the reporting processing unit 107 to execute reporting processing to report to a specified reporting destination (step S206).

After the transition to the non-security state by the processing of step S204, and after the reporting processing is performed by the processing of step S206, the processing of FIG. 6 is terminated. Note that if the reporting processing is performed by the processing of step S206, the buzzer will continue to sound, but the buzzer can be stopped by a legitimate user or security guard performing a specified release operation.

In this way, by the processing described using the flowcharts of Figures 5 and 6, in the security device 100, if a legitimate user approaches AP300, even before being detected through intrusion sensors SS1, SS2, ..., the buzzer is suppressed. Therefore, even if a legitimate user enters the guarded facility to perform a security release operation through the operation terminal 200 and is detected through intrusion sensors SS1, SS2, ..., no alarm sound (threatening sound) is emitted. For this reason, the legitimate user is not startled by the alarm sound (threatening sound) being emitted, and can calmly perform the security release operation through the operation terminal 200.

However, if the buzzer sound is suppressed when a legitimate user approaches AP300, but the security deactivation operation is not performed within a certain period of time, the suppression of the buzzer sound is released and the security state is maintained. As a result, the security state is not released just because a legitimate user approaches AP300, and the security function of the security device 100 is not reduced. Also, even if the user is legitimate, if he or she does not have a wireless communication terminal 400, an alarm sound is emitted as a threatening sound as in the past when detected through intrusion sensors SS1, SS2, .... Of course, if a person who does not have a wireless communication terminal 400 intrudes, an alarm sound is emitted as a threatening sound as in the past, and a report is made to the security company a certain time after the sound is emitted, so the same security function as in the past can be achieved.

In addition, if it is determined in the determination process of step S106 in FIG. 5 that a timeout has occurred, it is possible that some kind of trouble has occurred. For this reason, if it is determined in the determination process of step S106 in FIG. 5 that a timeout has occurred, it may be determined whether or not an intrusion has been detected, and if an intrusion has been detected, the intrusion response process described using FIG. 6 may be executed. Note that if it is determined in the determination process of step S106 that a timeout has occurred, and no intrusion has been detected, the process from step S101 may be repeated.

<Example of activating the buzzer suppression function after detecting an intrusion>
In the process described using the flowchart of Fig. 5, the buzzer ringing suppression function is activated before the intrusion of a user is detected. Therefore, it is considered that the buzzer ringing suppression function may be activated unnecessarily when a legitimate user who possesses the wireless communication terminal 400 merely approaches the AP 300. Therefore, in order to switch the operation state of the security device 100 from the security state to the non-security state, it is considered that the buzzer ringing suppression function is activated when a legitimate user enters (enters) the security target facility and an intrusion is detected through the intrusion sensors SS1, SS2, ....

Figure 7 is a flowchart for explaining another example of the processing when switching from a security state to a non-security state in a security device according to an embodiment, and is an example of a case where the buzzer sound suppression function is activated after a user's intrusion is detected. The processing shown in Figure 7 is processing during security that is executed by the control unit 102 of the security device 100 when the non-security state is switched to the security state via the operation terminal 200.

When the process shown in FIG. 7 is executed, the control unit 102 determines whether or not an intrusion has been detected through the intrusion sensors SS1, SS2, ... and the sensor detection unit 105 (step S301). If it is determined in the determination process of step S301 that an intrusion has not been detected, the control unit 102 repeats the process from step S301. If it is determined in the determination process of step S301 that an intrusion has been detected, the control unit 102 checks the state of the AP communication unit 111 and determines whether or not a wireless communication terminal 400 held by a legitimate user is connected through the AP 300 (step S302).

If it is determined in the determination process of step S302 that the wireless communication terminal 400 is connected (AP connected), the control unit 102 controls the buzzer sound control unit 108 to suppress the buzzer sound (step S303). The process of step S303 is such that even if an intrusion is detected through the intrusion sensors SS1, SS2, ..., no instruction is issued to the buzzer sound control unit 108 so that a warning sound (threatening sound) is not emitted. Also, if it is determined in the determination process of step S302 that the wireless communication terminal 400 is not connected (no AP connection), the control unit 102 controls the buzzer sound control unit 108 to sound the buzzer (step S304). In this case, since an intrusion has already been detected, the warning sound is emitted at a high volume as a threatening sound.

After the processing of step S303 or step S304, the control unit 102 accepts a security release operation by a legitimate user through the operation terminal 200 via the connection terminal 104T and the operation terminal communication unit 104 (step S305). In step S305, similar to the processing of step S103 shown in FIG. 5, a password is requested to be entered or fingerprint authentication is performed, and only security release operations by legitimate users are accepted.

Next, the control unit 102 determines whether or not a security release operation has been received through the operation terminal 200 (step S306). If it is determined in step S306 that a security release operation has been received, the control unit 102 controls each relevant unit to transition (switch) the operating state of the device to a non-security state (step S307). Note that in step S307, if a buzzer has started sounding, a process to stop the sounding is also performed. After this, the process shown in FIG. 7 ends.

Let us also assume that in the determination process of step S306, it is determined that a security release operation has not been accepted. In this case, the control unit 102 determines whether a predetermined time has elapsed (whether a timeout has occurred) since the buzzer sound was suppressed in step S303 or since the buzzer sound was started in step S304 (step S308). In this example as well, the predetermined time for determining whether a timeout has occurred is, for example, 30 seconds, and if a security release operation is not performed within 30 seconds from the start of the timeout, it is determined that a timeout has occurred.

If it is determined in the determination process of step S308 that a timeout has not occurred, the process from step S305 is repeated and the security release operation is accepted. It is assumed that in the determination process of step S308 that a timeout has occurred. In this case, the control unit 102 determines whether or not the buzzer has already started sounding (step S309), and if it is determined that the buzzer has not started sounding, it controls the buzzer sounding control unit 108 to start sounding the buzzer (step S310).

After step S310, or when it is determined in the determination process of step S309 that the buzzer has started to sound, a reporting process is executed (step S311). In this case, since it is highly likely that a truly abnormal intrusion has occurred, the control unit 102 continues the buzzer to sound and controls the reporting process unit 107 to execute a reporting process to report to a specified reporting destination. After this, the process of FIG. 7 is terminated.

In this way, in the case of the process described using the flowchart in Figure 7, when an intrusion is detected, it is possible to determine whether to suppress or start the buzzer sounding. This prevents the buzzer sounding suppression function from being operated unnecessarily. Also, if the user is a legitimate user and has wireless communication terminal 400, the buzzer does not sound and the security state can be released to a non-security state. Of course, if the user is a legitimate user, even if the user does not have wireless communication terminal 400, the buzzer will start sounding as before, but the security state can be released to a non-security state.

<Example of Authenticating a Wireless Communication Terminal via AP 300 After Detecting Intrusion>
In the process explained using the flowchart in Fig. 7, the AP 300 constantly transmits its own ESSID and accepts connection requests from nearby wireless communication terminals, so that authentication processing can be performed at any time with a wireless communication terminal carried by a legitimate user. However, the AP 300 needs to authenticate with a wireless communication terminal 400 carried by a legitimate user only when the legitimate user enters a security target facility and switches a security device from a security state to a non-security state.

Therefore, in this example, when an intrusion is detected through the intrusion sensors SS1, SS2, ... and the sensor detection unit 105, the security device 100 issues an instruction to the AP 300 to execute an authentication process to authenticate with the wireless communication terminal 400. If authentication is successful through this authentication process, the buzzer sound suppression function is activated. Of course, if authentication is not successful, the buzzer sound is not suppressed and normal action is taken. In this example, the AP 300 only needs to function when an intrusion is detected, so the AP 300 does not need to constantly send out ESSID to prepare for authentication processing, and unnecessary authentication processing is not performed, which contributes to improving the reliability of the security system.

Figure 8 is a flowchart for explaining another example of the processing when switching from a security mode to a non-security mode in a security device according to an embodiment, and is an example of the case where authentication of a wireless communication terminal is performed via AP300 after an intrusion is detected. In the flowchart of Figure 8, steps in which the same processing is performed as in the flowchart of Figure 7 are given the same reference numerals, and detailed descriptions of those steps are omitted. As can be seen by comparing the flowchart of Figure 8 with the flowchart of Figure 7, the processing shown in the flowchart of Figure 8 includes an additional step S401.

That is, when the process shown in FIG. 8 is executed, the control unit 102 determines whether or not an intrusion has been detected through the intrusion sensors SS1, SS2, ... and the sensor detection unit 105 (step S301). If it is determined in the determination process of step S301 that an intrusion has not been detected, the control unit 102 repeats the process from step S301. If it is determined in the determination process of step S301 that an intrusion has been detected, the control unit 102 controls the AP communication unit 111 and instructs the AP 300 to execute authentication processing through the IP communication control unit 106 and the connection terminal 106T (step S401).

As a result, AP300 sends out the ESSID and requests a password from the wireless communication terminal that sent the connection request. If the password is provided by the wireless communication terminal and is correct, AP300 authenticates the connection of the wireless communication terminal. This allows the wireless communication terminal to connect to the security device 100 through AP300. After the processing of step S401, the same processing as that described using the flowchart in FIG. 7 is performed (steps S302 to S311).

In this way, in the case of the process shown in the flowchart of FIG. 8, after an intrusion is detected, the AP 300 is instructed to execute authentication processing, so the AP 300 does not execute unnecessary authentication processing. This can improve the reliability of the security system configured using the security device 100.

Of course, in the case of the process shown in FIG. 8, as in the case of the process shown in FIG. 7, when an intrusion is detected, it is possible to determine whether to suppress or start the buzzer sounding. This prevents the buzzer sounding suppression function from being operated unnecessarily. Also, if the user is a legitimate user and has wireless communication terminal 400, the buzzer does not sound and the security state can be released to a non-security state. Of course, if the user is a legitimate user, even if the user does not have wireless communication terminal 400, the buzzer will start sounding as before, but the security state can be released to a non-security state.

<Improved security for authentication processing of connectable wireless communication terminals>
The process described using the flowcharts of Figures 5 to 8 uses the authentication function of the AP 300 to enable the authenticated wireless communication terminal 400 to connect to the security device 100 through the AP 300. However, because the authentication function of the AP 300 is used, the wireless communication terminal 400 can be connected only by a general-purpose authentication process using the ESSID and password set in the AP 300. Therefore, it is possible to further increase the security strength. The example described below is an example in which the security strength of the authentication process of the connectable wireless communication terminal is increased. Therefore, some configuration changes are made to the security device 100 and the wireless communication terminal 400 described above.

<<Configuration example of security device 100A (another example of security device)>>
Fig. 9 is a block diagram for explaining another example of the configuration of a security device, and is a block diagram for explaining an example of the configuration of a security device 100A having a configuration for increasing the security strength of the authentication process of a connectable wireless communication terminal. In Fig. 9, the same reference numerals are given to parts configured in the same way as the security device 100 shown in Fig. 2, and detailed explanations of those parts are omitted to avoid duplication.

As can be seen by comparing FIG. 9 with FIG. 2, the security device 100A in this example differs from the security device 100 shown in FIG. 2 in that it is equipped with a general-purpose terminal communication unit 112. Under the control of the control unit 102, the general-purpose terminal communication unit 112 communicates with a wireless communication terminal that has been authenticated with the AP300 and can connect to the security device 100A via the IP communication control unit 106, the connection terminal 106T, and even the AP300.

Specifically, the general-purpose terminal communication unit 112 acquires predetermined authentication information that is pre-set in the wireless communication terminal 400A and is sent from the wireless communication terminal 400A that is wirelessly connected to the security device 100A via the AP 300. This enables the security device 100A to determine whether the authentication information provided from the wireless communication terminal wirelessly connected via the AP 300 is appropriate authentication information that was pre-set. In other words, the authentication information provided from the wireless communication terminal makes it possible to make a final determination as to whether the wireless communication terminal is truly capable of connecting to the security device 100A.

<<Configuration Example of Wireless Communication Terminal 400A (Another Example of Wireless Communication Terminal)>>
Fig. 10 is a block diagram for explaining another example of the configuration of a wireless communication terminal, and is a block diagram for explaining an example of the configuration of a wireless communication terminal 400A having a configuration for increasing the security strength of the authentication process of a connectable wireless communication terminal. In Fig. 10, the same reference numerals are given to parts configured in the same way as the wireless communication terminal 400 shown in Fig. 4, and detailed explanations of those parts are omitted to avoid duplication.

As can be seen by comparing FIG. 10 with FIG. 4, the wireless communication terminal 400A in this example differs from the wireless communication terminal 400 shown in FIG. 4 in that it is equipped with a security device communication unit 413. Under the control of the control unit 402, the security device communication unit 413 communicates with the security device 100A that has been authenticated with the AP300 and is now connectable, via the short-range wireless unit 412, the transmission/reception antenna 412A, and the AP300.

Specifically, when the security device communication unit 413 is authenticated through the AP 300 and connected to the security device 100A through the AP 300, the security device communication unit 413 transmits predetermined authentication information that has been set in advance to the security device 100A. As described above, the authentication information is set in advance in the wireless communication terminal 400A held by the legitimate user of the security device 100A. The authentication information is transmitted to the security device 100A through the short-range wireless unit 412 and the transmitting/receiving antenna, and further through the AP 300.

<<Another example of processing when switching from security state to non-security state>>
Fig. 11 is a flowchart for explaining the process executed in the security device 100A having the configuration shown in Fig. 9 when switching from a security state to a non-security state. In the flowchart of Fig. 11, the same reference numerals are given to steps in which the same processes as those in the flowchart of Fig. 7 are performed, and detailed explanations of those steps are omitted. As can be seen by comparing the flowchart of Fig. 11 with the flowchart of Fig. 7, the flowchart of Fig. 11 differs in that the processes of steps S501, S502, and S503 are added and security is strengthened by using authentication information.

The process of the flowchart shown in FIG. 11 is executed by the control unit 102 of the security device 100A. When the process shown in FIG. 11 is executed, the control unit 102 determines whether or not an intrusion has been detected through the intrusion sensors SS1, SS2, ... and the sensor detection unit 105 (step S301). If it is determined in the determination process of step S301 that an intrusion has not been detected, the control unit 102 repeats the process from step S301.

If it is determined in the determination process of step S301 that an intrusion has been detected, the control unit 102 controls the AP communication unit 111 to instruct the AP 300 to execute authentication processing via the IP communication control unit 106 and the connection terminal 106T (step S501). As a result, the AP 300 sends out the ESSID and requests a password from the wireless communication terminal that has sent the connection request. If a password is provided by the wireless communication terminal and the password is correct, the connection of the wireless communication terminal is authenticated. As a result, the wireless communication terminal is allowed to connect to the security device 100A via the AP 300.

Next, the control unit 102 checks the state of the AP communication unit 111 and determines whether or not a wireless communication terminal 400 held by a legitimate user is connected through the AP 300 (step S302). Assume that in the determination process of step S302, it is determined that the wireless communication terminal 400 is connected (AP connected). In this case, the general-purpose terminal communication unit 112 is controlled to acquire authentication information transmitted from the wireless communication terminal 400A (step S502). In this example, as described above, the wireless communication terminal 400A is authenticated by the AP 300 and can connect to the security device 100A through the AP 300, and transmits predetermined authentication information that has been set in advance to the security device 100A.

After that, in step S502, the control unit 102 is able to acquire authentication information from the wireless communication terminal 400A, and determines whether the authentication information is valid or not (step S503). In the determination process of step S503, it is determined that valid authentication information has been acquired (authentication is OK). In this case, the control unit 102 controls the buzzer sound control unit 108 to activate the buzzer sound suppression function (step S303). The process of step S303 is to control the buzzer sound control unit 108 not to emit an alarm sound (threatening sound) even if an intrusion is detected through the intrusion sensors SS1, SS2, ....

If it is determined in the determination process of step S302 that the wireless communication terminal 400A is not connected (no AP connection), or if it is determined in the determination process of step S503 that authentication is not OK, a buzzer is started to sound (step S304). In step S304, the control unit 102 controls the buzzer sound control unit 108 to start emitting an alarm sound (threatening sound) to notify the occurrence of an intrusion through the operation terminal 200, the audio processing unit 109, and the speaker 110. The subsequent processing is the same as the processing of steps S305 to S311 described using FIG. 7.

In this way, in this example, not only is authentication processing performed by AP300, but security device 100A and wireless communication terminal 400A also communicate directly with each other, and the operation/non-operation of the buzzer sounding function can be determined based on whether or not predetermined authentication information has been acquired. This allows security device 100A to use the buzzer sounding suppression function only when an intrusion into a guarded facility is detected, authentication is achieved by AP300, and appropriate authentication information is acquired from wireless communication terminal 400A. This increases the security strength of the authentication processing of connectable wireless communication terminals, and allows the buzzer sounding suppression function to be used only when truly necessary.

<Summary of the processing performed by the security system>
Next, the processing performed in the security system configured as shown in Figure 1 using the security device 100A shown in Figure 9 and the wireless communication terminal 400A and AP 300 shown in Figure 10 will be summarized with reference to the sequences of Figures 12 and 13.

<<When the buzzer suppression function is activated>>
Fig. 12 is a sequence diagram for explaining the processing in a security system configured using the security device 100A shown in Fig. 9 and the wireless communication terminal 400A shown in Fig. 10, and is an example in which the buzzer ringing suppression function operates. As shown in Fig. 9, the security device 100A is connected to the AP 300 through the IP communication control unit 106 and the connection terminal 106T, and communication with the AP 300 is possible (step S0). When the intrusion sensor SS1 or the like senses (detects) the occurrence of an intrusion (step S1), the output signal from the intrusion sensor SS1 or the like is supplied to the sensor detection unit 105, so that the occurrence of an intrusion is detected by the sensor detection unit 105 (step S2).

The sensor detection unit 105 notifies the control unit 102 of the occurrence of the intrusion, and the AP communication unit 111 functions under the control of the control unit 102 to send an authentication request to the AP 300 (step S3). The authentication request is sent to the AP 300 through the IP communication control unit 106 (step S4). In response to the authentication request, the AP 300 sends necessary information such as ESSID to the surrounding wireless communication terminal 400A to notify the presence of the AP 300 (step S5). In response to this, the short-range wireless unit 412 of the wireless communication terminal 400A sends a connection request to the AP 300 under the control of the IP communication control unit 405, and provides necessary information such as a password (referred to as PW in FIG. 12) (step S6) to be authenticated.

In this example, the wireless communication terminal 400A is owned by a legitimate user, and necessary information such as the ESSID and password of the AP 300 is preset. Therefore, the wireless communication terminal 400A can provide necessary information such as a password to the AP 300, so authentication is obtained and the AP 300 and the wireless communication terminal 400A are wirelessly connected. As a result, the wireless communication terminal 400A is connected to the security device 100A via the AP 300 (step S7). The security device 100A also recognizes through the AP communication unit 111 that the wireless communication terminal 400A has been connected to itself.

Next, in the wireless communication terminal 400A connected to the security device 100A, the security device communication unit 413 functions to transmit predetermined authentication information to the security device 100A (step S8). Under the control of the IP communication control unit 405, the authentication information is transmitted to the security device 100A via the short-range wireless unit and the transmission/reception antenna 412A, and further via the AP 300 (step S9).

In the security device 100A, the connection terminal 106T, the IP communication control unit 106, and the general-purpose terminal communication unit 112 function to receive and hold authentication information from the wireless communication terminal 400A (step S10). Under the control of the control unit 102, the general-purpose terminal communication unit 112 determines whether authentication information has been received and, if so, whether the authentication information is proper (step S11). If the determination process of step S11 determines that the authentication information is proper, the sensor detection unit 105 is notified through the control unit 102 that the authentication is OK (step S12). This allows the sensor detection unit 105 to not issue a buzzer sounding instruction to the buzzer sounding control unit 108 through the control unit 102. In other words, the buzzer sounding is suppressed (step S13).

<<When the buzzer suppression function is activated>>
Fig. 13 is a sequence diagram for explaining the processing in a security system configured using the security device shown in Fig. 9 and the wireless communication terminal shown in Fig. 10, and is an example of a case where the buzzer ringing suppression function does not operate. In Fig. 13, the same reference numerals are given to sequences (steps) in which the same processing is performed as in the sequence diagram shown in Fig. 12, and detailed explanations of those parts are omitted. As can be seen by comparing Fig. 13 with Fig. 12, the processing from step S0 to step S11 is performed in the same way.

That is, even in the case of the processing shown in the sequence diagram of FIG. 13, in the processing of step S11, the general-purpose terminal communication unit 112, under the control of the control unit 102, determines whether authentication information has been received, and if so, whether the authentication information is appropriate (step S11). In the determination processing of step S11, it is assumed that authentication information has not been received, or that the received authentication information is not appropriate. In this case, the general-purpose terminal communication unit 112 notifies the sensor detection unit 105 through the control unit 102 that the authentication is NG (step S21). As a result, the sensor detection unit 105 issues an instruction to the buzzer sounding control unit 108 through the control unit 102 to start sounding the buzzer (step S22).

The buzzer sound control unit 108 then requests the operation terminal 200 to emit an alarm sound (threatening sound) to notify the occurrence of an intrusion via the operation terminal communication unit 104 and the connection terminal 104T (step S23). At the same time, the buzzer sound control unit 108 provides buzzer sound data to the audio processing unit 109 via the control unit 102, and controls the operation terminal 200 to emit an alarm sound (threatening sound) to notify the occurrence of an intrusion (step S24). This allows the operation terminal 200 and the speaker 110 to emit an alarm sound (threatening sound) to notify the occurrence of an intrusion.

In this way, in the example described using Figures 9 to 13, in addition to the authentication process for normal Wi-Fi (registered trademark) connection in AP 300, security device 100A can perform authentication processing based on authentication information from wireless communication terminal 400A. This two-stage authentication increases the security strength of the authentication processing of connectable wireless communication terminals, and allows the buzzer sound suppression function to be used only when truly necessary.

[Effects of the embodiment]
The security devices 100 and 100A of the above-described embodiments can suppress the alarm sound (threatening sound) that notifies the occurrence of an intruder without any effort or awareness on the part of the legitimate user when switching from the security state to the non- security state. As a result, when the legitimate user switches from the security state to the non-security state , the alarm sound (threatening sound) that notifies the occurrence of an intruder is not emitted. Therefore, it is possible to prevent the user from being surprised by the alarm sound, the harsh sound from becoming a psychological burden, or the user from being hasty and taking time to switch. Therefore, it is possible to eliminate the annoyance caused by the loud alarm sound (threatening sound) being emitted when switching from the security state to the non-security state .

In addition, by combining the emission of an alarm sound when a sensor detects something with authentication using a general-purpose terminal (general-purpose device) such as the wireless communication terminals 400 and 400A, it is possible to improve the availability and reliability of the security system. In other words, it is possible to avoid the emission of unnecessary threatening sounds and unnecessary reports, so that the system functions stably, and if a truly abnormal intrusion occurs, an alarm sound (threatening sound) can be immediately emitted, allowing for the construction of a reliable security system.

[Variations]
In the above embodiment, when an intrusion is detected, an alarm sound (threatening sound) is immediately emitted, but this is not limited to the above. For example, it is possible to emit an alarm sound (warning sound) that is not very loud for a certain period of time after the intrusion is detected, and then emit a loud alarm sound (threatening sound) after the certain period of time has elapsed. In this case, the present invention can be applied and the emission of the initial alarm sound (warning sound) can be suppressed. In this case, the legitimate user can still perform the switching operation to the non-security state without panicking.

In the above embodiment, the buzzer sound suppression function is activated to prevent the buzzer sound from being emitted as a warning sound (threatening sound), but this is not limited to this. For example, when the buzzer sound suppression function is activated, the volume of the buzzer sound can be lowered, or a voice message can be emitted at an appropriate volume to prompt the user to switch to the non-security state .

In addition, in the security devices 100 and 100A of the above-mentioned embodiments, each unit is controlled via the control unit 102, but this is not limited to the above. For example, when the sensor detection unit 105 detects an intrusion, the sensor detection unit 105 can directly issue a sound instruction to the buzzer sound control unit 108.

In addition, the communication distance between AP300 and wireless communication terminals 400 and 400A can be adjusted to an appropriate distance by taking measures such as adjusting the transmission output of AP300.

[others]
As can be seen from the above description of the embodiment, the function of the sensor detection means in the claims is realized by the sensor detection unit 105 of the security device 100, 100A in the embodiment. In addition, the function of the notification control means in the claims is realized mainly by the buzzer sound control unit 108 of the security device 100, 100A. In addition, the function of the operation state switching means in the claims is realized mainly by the control unit 102 of the security device 100, 100A. In addition, the function of the base station communication means in the claims is realized by the AP communication unit 111 and the IP communication control unit 106 of the security device 100, 100A working together. The function of the authentication instruction means in the claims is realized mainly by the AP communication unit of the security device 100, 100A. The function of the authentication information acquisition means in the claims is realized mainly by the general-purpose terminal communication unit 112 of the security device 100, 100A.

Furthermore, the functions of the IP communication control unit 106, the buzzer sound control unit 108, and the AP communication unit 111 of the security device 100, 100A can also be realized as functions of the control unit 102 by a program executed by the control unit 102.

100, 100A...security device, 101T...connection terminal, 101...communication I/F, 102...control unit, 103...storage device, 104...operation terminal communication unit, 104T...connection terminal, 105...sensor detection unit, 105T1, 105T2...connection terminal, 106...IP communication control unit, 106T...connection terminal, 107...report processing unit, 108...buzzer sound control unit, 109...audio processing unit, 110...speaker, 111...AP communication unit, 112...general-purpose terminal communication unit, 200...operation terminal, 300...AP (access point), 400, 400A...wireless communication terminal, SS1, SS2...intrusion sensor

Claims (3)

a sensor detection means for detecting an intrusion based on an output signal from an intrusion sensor that detects an intrusion by a person or the like;
a notification control means for controlling the sensor detection means to notify the occurrence of an intrusion when the intrusion is detected by the sensor detection means;
an operation state switching means for switching between a security state in which an alarm is issued when an intrusion occurs and a non-security state in which no alarm is issued in response to an instruction input from a user;
an instruction input receiving means for receiving the instruction input from the user, the instruction input including authentication information indicating that the user is a legitimate user;
a base station communication means for enabling communication with a wireless communication terminal through a base station that enables connection of a wireless communication terminal that has been authenticated by wireless communication;
Equipped with
The notification control means, when the device itself is in the guard state and an intrusion has been detected by the sensor detection means,
if there is no wireless communication terminal capable of communicating through the base station communication means, immediately start to notify the occurrence of an intrusion by a warning sound that is not loud, and if the instruction input for switching to the non-security state is not received through the instruction input receiving means within a predetermined time, start to emit a loud threatening sound,
When the wireless communication terminal is authenticated by the base station and is capable of communicating through the base station communication means, notification of the occurrence of an intrusion is suppressed, and when the instruction input for switching to the non-security state is not received through the instruction input receiving means within a predetermined time, notification of the occurrence of an intrusion is started by emitting a loud threatening sound.
A security device characterized by: 2. The security device of claim 1,
When the base station receives a predetermined authentication instruction from the security device, the base station executes an authentication process to communicate with a nearby wireless communication terminal and obtain authentication,
an authentication instruction means for providing the authentication instruction to the base station when the device itself is in the guard state and an intrusion is detected by the sensor detection means;
The security device is characterized in that the notification control means, when the device is in the security state and an intrusion is detected by the sensor detection means, and when there is a wireless communication terminal that has been authenticated by the base station and is able to communicate through the base station communication means, does not notify the occurrence of the intrusion. 2. The security device of claim 1,
When the base station receives a predetermined authentication instruction from the security device, the base station executes an authentication process to communicate with a nearby wireless communication terminal and obtain authentication,
an authentication instruction means for providing the authentication instruction to the base station when the own device is in the guard state and an intrusion is detected by the sensor detection means;
and an authentication information acquiring means for acquiring authentication information from a wireless communication terminal by communicating with the wireless communication terminal through the base station when the wireless communication terminal is authenticated by the base station,
The security device is characterized in that when the security device is in the security state and an intrusion is detected by the sensor detection means, there is a wireless communication terminal that has been authenticated by the base station and is able to communicate through the base station communication means, authentication information can be obtained from the wireless communication terminal through the authentication information acquisition means, and the authentication information is appropriate, the notification control means does not notify the intrusion.

Images