JP7486090B2 - Control system and control method - Google Patents

Description

The present invention relates to a control system and a control method.

Various technologies have been proposed to strengthen security in homes. Patent Document 1 discloses a building security system that can suppress false positives of unauthorized intrusions and reliably notify users in the event of an unauthorized intrusion.

JP 2009-48481 A

The present invention provides a control system etc. that can switch the requirements necessary to trigger a security alert.

A control system according to one aspect of the present invention includes a control unit that performs an alert mode operation to prevent unauthorized intrusion into a facility, and when the alert mode is enabled under a first security level, the control unit issues a first notification based on a first device installed in the facility transitioning to a predetermined first state, and does not issue a second notification based on a second device installed in the facility transitioning to a predetermined second state, and issues the first notification and the second notification when the alert mode is enabled under a second security level higher than the first security level.

A control method according to one aspect of the present invention is a control method executed by a control system that operates in an alert mode to prevent unauthorized intrusion into a facility, and when the alert mode is enabled under a first security level, a first notification is issued based on a first device installed in the facility transitioning to a predetermined first state, and a second notification is not issued based on a second device installed in the facility transitioning to a predetermined second state, and when the alert mode is enabled under a second security level higher than the first security level, the first notification and the second notification are issued.

A program according to one aspect of the present invention is a program for causing a computer to execute the control method.

A control system according to one embodiment of the present invention can switch the requirements necessary to trigger a security alert.

FIG. 1 is a block diagram showing a functional configuration of a control system according to an embodiment. FIG. 2 is a schematic diagram showing the inside of a house to which the control system according to the embodiment is applied. FIG. 3 is a flowchart of the operation of the control system according to the embodiment for enabling the alert mode. FIG. 4 is a flowchart of the operation of the control system in the alert mode according to the embodiment. FIG. 5 is a diagram showing an example of a notification screen displayed on the display unit of the mobile terminal. FIG. 6 is a flowchart of the operation for canceling the alert mode of the control system according to the embodiment. FIG. 7 is a sequence diagram of an operation for raising the security level of the control system according to the embodiment. FIG. 8 is a diagram for explaining the difference between the requirements necessary for issuing a notification in the first security level and the second security level.

The following describes the embodiments in detail with reference to the drawings. Note that the embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, component placement and connection forms, steps, and order of steps shown in the following embodiments are merely examples and are not intended to limit the present invention. Furthermore, among the components in the following embodiments, components that are not described in an independent claim are described as optional components.

Note that each figure is a schematic diagram and is not necessarily a precise illustration. In addition, in each figure, the same reference numerals are used for substantially the same configurations, and duplicate explanations may be omitted or simplified.

(Embodiment)
[composition]
First, the configuration of the control system according to the embodiment will be described. Fig. 1 is a block diagram showing the functional configuration of the control system according to the embodiment. Fig. 2 is a schematic diagram showing the inside of a house to which the control system according to the embodiment is applied.

The control system 10 shown in FIG. 1 and FIG. 2 is an equipment control system that can control equipment such as lighting equipment (not shown) and air conditioning equipment (not shown) installed in the house 60. The control system 10 can also perform an alert mode operation to detect an intruder when the resident of the house 60 is absent and to alert the intruder or the resident. The house 60 is an example of a facility. The house 60 is, for example, a detached house, but may also be an apartment building. The resident of the house 60 is an example of a user of the facility (more specifically, a user who uses the facility on a daily basis). The control system 10 may also be applied to facilities other than the house 60, such as an office building.

As shown in FIG. 1, the control system 10 includes a control terminal 20, a human presence sensor 31, an electric lock 32, an opening/closing sensor 33, a mobile terminal 40, and a server device 50. The control terminal 20, the human presence sensor 31, the electric lock 32, and the opening/closing sensor 33 are installed in a house 60. The mobile terminal 40 may be located inside the house 60 or outside the house 60.

First, the control terminal 20 will be described. The control terminal 20 is, for example, a HEMS (Home Energy Management System) controller having an energy management function. The control terminal 20 is installed in the house 60 and manages the power consumption of multiple devices installed in the house 60. The control terminal 20 also controls the devices installed on the premises of the house 60. The control terminal 20 is not limited to a HEMS controller, and may be another home controller without an energy management function, or a gateway device. In addition, it is not essential that the control terminal 20 has a function for controlling devices, and may be a dedicated controller specialized for the security system for the house 60. Specifically, the control terminal 20 includes a display unit 21, a first communication unit 22, a second communication unit 23, an information processing unit 24, a memory unit 25, and a speaker 26.

The display unit 21 is a display device having a function of displaying images and a function of accepting manual input from a user. The display unit 21 is realized by a display panel such as a touch panel, a liquid crystal panel, or an organic EL (Electro Luminescence) panel. The touch panel is, for example, a capacitive touch panel, but may also be a resistive touch panel.

The first communication unit 22 is a communication circuit that enables the control terminal 20 to communicate with the mobile terminal 40, the server device 50, and the like via the wide area communication network 70. The first communication unit 22 is, for example, a wireless communication circuit that performs wireless communication, but may also be a wired communication circuit that performs wired communication. There are no particular limitations on the communication standard of the communication performed by the first communication unit 22.

The second communication unit 23 is a communication circuit that enables the control terminal 20 to communicate with devices such as the human presence sensor 31, the electric lock 32, and the opening/closing sensor 33 via a local communication network. The second communication unit 23 is, for example, a wireless communication circuit that performs wireless communication, but may also be a wired communication circuit that performs wired communication. There are no particular limitations on the communication standard for the communication performed by the second communication unit 23.

The information processing unit 24 processes information related to the control of the device and information related to the above-mentioned alert mode. The information processing unit 24 is realized, for example, by a microcomputer, but may also be realized by a processor or a dedicated circuit. The information processing unit 24 has an acquisition unit 27 and a control unit 28 as functional components. The functions of the acquisition unit 27 and the control unit 28 are realized, for example, by a microcomputer or the like constituting the information processing unit 24 executing a computer program stored in the storage unit 25. The functions of the acquisition unit 27 and the control unit 28 will be described in detail later.

The memory unit 25 is a storage device that stores computer programs executed by the information processing unit 24. The memory unit 25 is realized, for example, by a semiconductor memory.

The speaker 26 is a speaker that emits a warning sound to an intruder in the alert mode (in other words, alerts the intruder). The warning sound may be emitted by a speaker device separate from the control terminal 20, in which case the speaker device is a smart speaker or the like.

The human presence sensor 31 is installed in the house 60, detects the presence or absence of a person within the detection range, and transmits information indicating the detection result to the control terminal 20. The human presence sensor 31 is realized, for example, by a pyroelectric sensor that reacts to infrared rays emitted from the human body, but may also be an ultrasonic human presence sensor. The human presence sensor 31 may also be a sensor that detects the presence or absence of a person by photographing the inside of the house 60 with a camera (image sensor), and the specific form of the human presence sensor 31 is not particularly limited. In the example of FIG. 2, the human presence sensor 31 is installed at the entrance of the house 60, but it may be installed anywhere within the house 60. The control system 10 may also be equipped with multiple human presence sensors 31.

The electric lock 32 is a security device that controls the locking and unlocking of doors of the house 60. Specifically, the electric lock 32 is installed on the front door of the house 60. The electric lock 32 is equipped with a short-range wireless communication unit that acquires authentication information (key information) from an authentication medium such as a card key (IC card), and a resident can lock or unlock the electric lock 32 from outside the house 60 by bringing the card key close to the electric lock 32. The electric lock 32 may be locked or unlocked by inputting a PIN number into a numeric keypad, or may be locked or unlocked by biometric authentication such as a fingerprint or iris. The electric lock 32 transmits information indicating the locked or unlocked state of the electric lock 32 to the control terminal 20.

The opening/closing sensor 33 detects whether a window installed in the house 60 is open or closed, and transmits information indicating the detection result to the control terminal 20. The opening/closing sensor 33 is a magnetic sensor realized by a magnet attached to one of the window and the window frame, and a magnet sensor attached to the other of the window and the window frame. The opening/closing sensor 33 may also be a radio wave sensor realized by an RFID tag attached to one of the window and the window frame, and an RFID reader attached to the other of the window and the window frame, and the specific form of the opening/closing sensor 33 is not particularly limited.

Next, the mobile terminal 40 will be described. The mobile terminal 40 is a mobile terminal such as a smartphone or tablet terminal owned by a resident of the house 60. An application program that enables the resident to receive notifications via the mobile terminal 40 is installed in the mobile terminal 40, and as described below, the resident can receive notifications indicating abnormalities related to the security of the house 60 via the mobile terminal 40. The mobile terminal 40 has a display unit 41.

The display unit 41 is a display device having a function of displaying images and a function of accepting manual input from a user. The display unit 41 is realized by a display panel such as a touch panel, a liquid crystal panel, or an organic EL panel. The touch panel is, for example, a capacitive touch panel, but may also be a resistive touch panel.

Next, the server device 50 will be described. The server device 50 is a computer (cloud server) located outside the house 60. The server device 50 performs information processing so that the control terminal 20 can notify the resident via the mobile terminal 40. The server device 50 may also perform information processing related to remote control, in which the resident controls equipment installed in the house 60 by operating the mobile terminal 40 from outside the house 60.

[Actions to enable security mode]
As described above, the control system 10 can perform an alert mode operation to detect an intruder when the resident of the house 60 is absent and to notify the intruder or the resident. First, an operation of the control system 10 for enabling the alert mode will be described. Fig. 3 is a flowchart of the operation of the control system 10 for enabling the alert mode.

The acquisition unit 27 of the control system 10 acquires information indicating the detection result of the human presence sensor 31 and information indicating the locked or unlocked state of the electric lock 32 via the second communication unit 23 (S11). Based on the information acquired in step S11, the control unit 28 determines whether the electric lock 32 was locked (transitioned from an unlocked state to a locked state) when no one was present in the house 60 (S12).

If the requirement that the electric lock 32 is locked when no one is present in the house 60 is not met (No in S12), the acquisition of information in step S11 continues, the control unit 28 does not enable the alert mode, and the alert mode remains disabled. Specifically, even if the electric lock 32 is locked when someone is present in the house 60, the control unit 28 does not enable the alert mode.

On the other hand, when the control unit 28 determines that the electric lock 32 is locked when no one is present in the house 60 (Yes in S12), it activates the security mode (S13). For example, the control unit 28 sets the security mode setting flag in the memory unit 25 to active.

In this way, the control system 10 can automatically activate the alert mode based on information indicating the detection result of the human presence sensor 31 and information indicating the locked or unlocked state of the electric lock 32, thereby improving convenience for residents.

Note that this operation for enabling the alert mode is one example. For example, the control system 10 (control unit 28) may enable the alert mode based on an operation on the control terminal 20 by the resident. Specifically, the resident may perform an operation on the display unit 21 of the control terminal 20 to instruct the display unit 21 to transition to the alert mode, and the control unit 28 may enable the alert mode when the display unit 21 accepts such an operation.

The control system 10 (control unit 28) may also enable the alert mode based on an operation on the resident's mobile terminal 40. In this case, when the resident operates the mobile terminal 40 to instruct it to enable the alert mode, the mobile terminal 40 transmits a command to enable the alert mode to the server device 50. The first communication unit 22 of the control terminal 20 receives the command from the server device 50, and the control unit 28 enables the alert mode based on the received command.

[Armed mode operation]
Next, a description will be given of the operation of the control system 10 in the security mode with reference to FIG.

When the alert mode is active, the acquisition unit 27 acquires information indicating the detection result of the human presence sensor 31 via the second communication unit 23 (S14). Based on the acquired information, the control unit 28 determines whether the state inside the house 60 has transitioned from an absence of people to a presence of people (S15).

If the control unit 28 determines that the state inside the house 60 remains an unoccupied state (No in S15), the acquisition of information in step S14 continues. On the other hand, if the control unit 28 determines that the state inside the house 60 has transitioned from an unoccupied state to a state in which a person is present (Yes in S15), it issues a notification that a security abnormality has occurred inside the house 60 (S16).

Specifically, the control unit 28 issues an alarm sound from the speaker 26 to alert a person in the house 60 (a person suspected of being an intruder). The control unit 28 also causes the first communication unit 22 to transmit alarm information addressed to the mobile terminal 40, thereby alerting the occupant that there may be an intruder in the house 60. Specifically, the alarm information is transmitted to the mobile terminal 40 via the server device 50, and the mobile terminal 40 that receives the alarm information displays an alarm screen such as that shown in FIG. 5 on the display unit 41. FIG. 5 is a diagram showing an example of an alarm screen displayed on the display unit 41 of the mobile terminal 40.

In this way, the control system 10 can issue an alert to warn a person suspected of being an intruder into the residence 60 and notify the residents that there may be an intruder in the residence 60 by operating in the alert mode. Note that the control system 10 (control unit 28) only needs to issue at least one of an alert to warn a person suspected of being an intruder into the residence 60 and notify the residents that there may be an intruder in the residence 60.

[Action to cancel (disable) security mode]
Next, there will be described an operation for canceling (disabling) the alert mode of the control system 10. Fig. 6 is a flowchart showing the operation of the control system 10 for canceling the alert mode.

When the alert mode is active, the acquisition unit 27 acquires information indicating the locked or unlocked state of the electric lock 32 via the second communication unit 23 (S17). Based on the acquired information, the control unit 28 determines whether the electric lock 32 has transitioned from a locked state to an unlocked state (S18).

If the control unit 28 determines that the electric lock 32 remains in the locked state (No in S18), the acquisition of information in step S17 continues. In other words, the alert mode is maintained in an enabled state. On the other hand, if the control unit 28 determines that the electric lock 32 has transitioned from a locked state to an unlocked state (Yes in S18), the control unit 28 cancels the alert mode (S19). For example, the control unit 28 sets the alert mode setting flag in the memory unit 25 to invalid.

In this way, the control system 10 can automatically cancel the security mode when the electric lock 32 is unlocked while the security mode is active. In other words, when a resident arrives at the residence 60 from outside, the resident can automatically cancel the security mode by unlocking the electric lock 32 with a card key that the resident possesses. According to the control system 10, the resident does not need to perform any special operations to cancel the security mode. In other words, the control system 10 can improve the convenience of the resident.

[Raising security level]
Incidentally, if a resident loses the card key for unlocking the electric lock 32 while away from home while the security mode is active, if a person who finds the card key uses it to unlock the electric lock 32, the security mode will be released and the resident will be able to enter the house 60. To deal with such a situation, the control system 10 can raise the security level of the security mode.

The operation of the control system 10 for raising the security level of the alert mode will be described below. FIG. 7 is a sequence diagram of the operation of the control system 10 for raising the security level. Note that, below, the alert mode operation described using FIG. 4 will also be described as the operation of the first security level. FIG. 7 shows the operation when the first security level is raised to a second security level with higher security.

While away from home, the resident performs an operation on the mobile terminal 40 to raise the security level, and the mobile terminal 40 accepts this operation (S21). Based on the accepted operation, the mobile terminal 40 transmits level-up instruction information to the server device 50, which instructs the user to raise the security level (S22).

The server device 50 receives the level-up instruction information and transmits the received level-up instruction information to the control terminal 20 (S23).

The first communication unit 22 of the control terminal 20 receives the level-up instruction information. The acquisition unit 27 acquires the received level-up instruction information (S24), and the control unit 28 increases the security level of the alert mode based on the acquired level-up instruction information (S25). Specifically, the control unit 28 changes the value of the security level flag in the memory unit 25 from a value corresponding to the first security level to a value corresponding to the second security level.

The first security level and the second security level have different requirements for issuing an alert. The control unit 28 can switch the requirements for issuing an alert shown in FIG. 8 by determining whether the security level of the alert mode is the first security level or the second security level based on the value of the security level flag described above. FIG. 8 is a diagram for explaining the difference in the requirements for issuing an alert depending on the security level.

As shown in FIG. 8, when the alert mode is active under the first security level, the control unit 28 issues an alert when the first requirement of transitioning from a state where no one is present to a state where a person is present is met based on the detection result of the human presence sensor 31. The specific process when such an alert is issued has already been described using FIG. 4.

On the other hand, when the alert mode is enabled under the second security level, the control unit 28 issues an alert when the first requirement is met, as well as when the second requirement that the electric lock 32 transitions from a locked state to an unlocked state is met, and when the third requirement that the opening/closing sensor 33 transitions from a closed state to an open state is met. In other words, when the alert mode is enabled under the second security level, the control unit 28 issues an alert when any one of the first requirement, the second requirement, and the third requirement is met.

For example, if a resident loses the card key used to unlock the electric lock 32 while away from home, the resident can raise the security level from the first security level to the second security level by operating the mobile terminal 40. As a result, when a person who finds the card key unlocks the electric lock 32 with the card key, the security level is raised, and instead of disabling the security mode, the security mode is maintained and an alert (such as an alarm sound) is issued. In this way, the control system 10 can deal with the resident's loss of the card key by raising the security level. In other words, the control system 10 can prevent a person who finds the card key from breaking into the house 60 by raising the security level as necessary.

When the resident wishes to cancel the alert mode, he or she lowers the security level from the second security level to the first security level and then unlocks the electric lock 32. The sequence of operations when lowering the security level is the same as that shown in FIG. 8. That is, in FIG. 8, "raising the security level" may be read as "lowering the security level" and "level-up instruction information" may be read as "level-down instruction information". In this way, the control unit 28 can switch between the first security level and the second security level according to the information (level-up instruction information or level-down instruction information) that instructs a change in the security level acquired by the acquisition unit 27.

[Modification]
In the above embodiment, when the alert mode is enabled under the first security level, the control unit 28 issues a first notification based on the transition of the human presence sensor 31 installed in the house 60 to a state in which a person is detected. Here, the first notification may be a notification based on the transition of the first device installed in the house 60 to a predetermined first state. The first notification may be, for example, a notification based on the transition of the electric lock 32 to an unlocked state, or a notification based on the transition of the opening/closing sensor 33 to an open state. In other words, the first device may be one of the human presence sensor 31, the electric lock 32, and the opening/closing sensor 33. The first device may also be a device other than these three devices.

Similarly, when the alert mode is enabled under a second security level higher than the first security level, the control unit 28 issues a second notification based on the electric lock 32 transitioning to an unlocked state, in addition to the first notification described above. Here, the second notification may be a notification based on a second device (different from the first device) installed in the house 60 transitioning to a predetermined second state. In other words, the second device may be any other device than the human sensor 31, the electric lock 32, and the opening/closing sensor 33. The second device may also be a device other than these three devices.

In addition, in the first security level, only the first requirement (one requirement) is set as the requirement for notification, and in the second security level, the first, second, and third requirements are set as the requirements for notification, but the requirement for notification may be relaxed in the second security level more than in the first security level. In other words, it is sufficient if there are more triggers for notification in the second security level than in the first security level. For example, in the first security level, n requirements (n is a natural number) may be set as the requirements for notification, and in the second security level, m requirements (m is a natural number greater than n) may be set as the requirements for notification.

In addition, in the above embodiment, the main information processing is performed by the control terminal 20, but it may be performed by the server device 50. For example, the server device 50 may perform only a part of the information processing described as being performed by the control terminal 20, or may perform all of it. For example, the server device 50 may be provided with components equivalent to the storage unit 25, the acquisition unit 27, and the control unit 28, so that the server device 50 can perform some or all of the information processing described as being performed by the control terminal 20. In other words, the information processing described in the above embodiment as being performed by the control terminal 20 may be read as information processing performed by the server device 50, as appropriate.

[Effects, etc.]
As described above, the control system 10 includes the control unit 28 that performs an alert mode operation to prevent unauthorized intrusion into the residence 60. When the alert mode is enabled under a first security level, the control unit 28 issues a first notification based on a first device installed in the residence 60 transitioning to a predetermined first state, and does not issue a second notification based on a second device installed in the residence 60 transitioning to a predetermined second state, and issues the first and second notifications when the alert mode is enabled under a second security level higher than the first security level. The residence 60 is an example of a facility.

Such a control system 10 can switch the requirements necessary to trigger a security alert depending on the security level.

For example, the first device is one of the human presence sensor 31, the window opening/closing sensor 33, and the electric lock 32, and the second device is the other one of the human presence sensor 31, the window opening/closing sensor 33, and the electric lock 32.

Such a control system 10 can switch whether or not to issue a second notification when the other one of the devices transitions to a specified second state, depending on the security level.

For example, the second device is an electric lock 32, and the second notification is a notification based on the transition of the electric lock 32 from a locked state to an unlocked state.

Such a control system 10 can switch whether or not to issue a second alert when the electric lock 32 is unlocked during the alert mode, depending on the security level.

Also, for example, when the alert mode is enabled under the first security level, the control unit 28 cancels the alert mode based on the transition of the electric lock 32 from a locked state to an unlocked state.

When the electric lock 32 is unlocked during the security mode, this type of control system 10 can switch between issuing a second alert or canceling the security mode depending on the security level.

Also, for example, when the security mode is disabled, the control unit 28 enables the security mode if the electric lock 32 transitions from an unlocked state to a locked state while no one is present in the house 60.

Such a control system 10 can automatically enable the alert mode if the electric lock 32 transitions from an unlocked state to a locked state while no one is present in the house 60 when the alert mode is disabled.

For example, the control system 10 further includes an acquisition unit 27 that acquires information instructing a change in the security level. The control unit 28 switches between the first security level and the second security level according to the acquired information.

Such a control system 10 can switch security levels during alert mode.

The control method executed by the control system 10 that operates in an alert mode to prevent unauthorized intrusion into the house 60 issues a first notification based on a first device installed in the house 60 transitioning to a predetermined first state when the alert mode is active under a first security level, and does not issue a second notification based on a second device installed in the house 60 transitioning to a predetermined second state, and issues the first and second notifications when the alert mode is active under a second security level that is higher than the first security level.

This type of control method can switch the requirements necessary to trigger a security alert depending on the security level.

(Other embodiments)
Although the embodiment has been described above, the present invention is not limited to the above embodiment.

For example, in the above embodiment, the control system is realized by multiple devices, but it may be realized by a single device. For example, the control system may be realized as a single device equivalent to the control terminal or server device of the above embodiment. When the control system is realized by multiple devices, the components of the control system may be allocated in any manner to the multiple devices.

In addition, in the above embodiment, the processing performed by a specific processing unit may be executed by another processing unit. Also, the order of multiple processes may be changed, and multiple processes may be executed in parallel.

In the above embodiment, each component may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU or processor reading and executing a software program recorded on a recording medium such as a hard disk or semiconductor memory.

In addition, each component may be realized by hardware. For example, each component may be a circuit (or an integrated circuit). These circuits may form a single circuit as a whole, or each may be a separate circuit. In addition, each of these circuits may be a general-purpose circuit or a dedicated circuit.

In addition, the general or specific aspects of the present invention may be realized as a system, an apparatus, a method, an integrated circuit, a computer program, or a recording medium such as a computer-readable CD-ROM. Also, the present invention may be realized as any combination of a system, an apparatus, a method, an integrated circuit, a computer program, and a recording medium.

For example, the present invention may be realized as a control terminal or server device according to the above-described embodiment, or as a control system equivalent to the control terminal or server device. The present invention may also be realized as a control method executed by a computer such as a control system, or as a program for causing a computer to execute such a control method. The present invention may also be realized as a computer-readable non-transitory recording medium on which such a program is recorded.

In addition, the present invention also includes forms obtained by applying various modifications to each embodiment that a person skilled in the art may conceive, or forms realized by arbitrarily combining the components and functions of each embodiment within the scope of the spirit of the present invention.

REFERENCE SIGNS LIST 10 Control system 20 Control terminal 21 Display unit 22 First communication unit 23 Second communication unit 24 Information processing unit 25 Memory unit 26 Speaker 27 Acquisition unit 28 Control unit 30 Device 31 Human presence sensor 32 Electric lock 33 Opening/closing sensor 40 Mobile terminal 41 Display unit 50 Server device 60 House (facility)
70 Wide area communication network

Claims (6)

A control unit that performs an alarm mode operation to prevent unauthorized intrusion into the facility,
The control unit is
When the alert mode is enabled under a first security level, a first notification is issued based on a first device installed in the facility transitioning to a predetermined first state, and a second notification is not issued based on an electric lock installed in the facility transitioning from a locked state to an unlocked state ;
when the alert mode is enabled under a second security level that is higher than the first security level, the first notification and the second notification are performed;
When the security mode is enabled under a first security level, the security mode is released based on the transition of the electric lock from a locked state to an unlocked state.
Control system. The first device is one of a human presence sensor and a window opening/closing sensor.
The control system of claim 1 . The control system according to claim 1 or 2 , wherein the control unit activates the security mode when the security mode is disabled and the electric lock transitions from an unlocked state to a locked state while no one is present in the facility. The information acquisition unit acquires information instructing a change in the security level,
The control system according to claim 1 , wherein the control unit switches between the first security level and the second security level in accordance with the acquired information. A control method executed by a control system that performs an alert mode operation to suppress unauthorized intrusion into a facility, comprising:
When the alert mode is enabled under a first security level, a first notification is issued based on a first device installed in the facility transitioning to a predetermined first state, and a second notification is not issued based on an electric lock installed in the facility transitioning from a locked state to an unlocked state ;
when the alert mode is enabled under a second security level that is higher than the first security level, the first notification and the second notification are performed;
When the security mode is enabled under a first security level, the security mode is released based on the transition of the electric lock from a locked state to an unlocked state.
Control methods. A program for causing a computer to execute the control method according to claim 5 .

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