JP7486070B2 - Information processing system and information processing method - Google Patents

Description

The present invention relates to an information processing system and an information processing method.

Technology for detecting people in a building is known. Patent Document 1 discloses an identification system that uses a transmitter to identify whether a person in a specified area of a facility is a person who has been registered in advance.

International Publication No. 2017/145608

The present invention provides an information processing system and information processing method that can determine whether or not a person is present in a building.

The information processing system according to one aspect of the present invention includes an acquisition unit that acquires first information indicating the detection result of an opening/closing sensor that detects the opening and closing of a door installed at an entrance of a building and second information indicating the detection result of a human presence sensor installed in the building, and a determination unit that determines whether or not a person is present in the building based on the acquired first information and second information.

An information processing method according to one aspect of the present invention acquires first information indicating the detection result of an opening/closing sensor that detects the opening and closing of a door installed at an entrance of a building, and second information indicating the detection result of a human presence sensor installed within the building, and determines whether or not a person is present within the building based on the acquired first information and second information.

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

An information processing system and information processing method according to one aspect of the present invention can determine whether or not a person is present in a building.

FIG. 1 is a block diagram showing a functional configuration of a monitoring system according to an embodiment. FIG. 2 is a diagram showing an example of installation of an opening/closing sensor and a human presence sensor. FIG. 3 is a flowchart of an example 1 of the operation for determining the presence or absence of a person. FIG. 4 is a time chart showing a specific example of determining whether or not a person is present. FIG. 5 is a flowchart of a second example of the operation of determining the presence or absence of a person. FIG. 6 is a diagram illustrating an example of a flowchart of the monitoring operation.

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)
[Configuration of monitoring system]
First, the configuration of a monitoring system according to an embodiment will be described. Fig. 1 is a block diagram showing the functional configuration of a monitoring system according to an embodiment.

As shown in FIG. 1, the monitoring system 10 according to the embodiment includes an opening/closing sensor 20, a human presence sensor 25, an information processing system 30, a distribution board 60, a lighting device 70, a first information terminal 100, and a second information terminal 110. The information processing system 30 includes a control device 40 and a server device 50. The components of the monitoring system 10 other than the server device 50, the first information terminal 100, and the second information terminal 110 are installed in a building 80. The building 80 is, for example, a residence such as an apartment building or a detached house, but may also be a care facility or a hospital.

In the monitoring system 10, the user residing in the building 80 is, for example, an elderly person. The user living a normal life in the building 80 turns on and off the equipment (in other words, electrical equipment) installed in the building 80, such as the lighting device 70. In other words, if the user lives a normal life in the building 80, there will be some fluctuation in the amount of electricity used in the building 80. The information processing system 30 provided in the monitoring system 10 can use the electricity usage measurement function of the distribution board 60 to detect fluctuations in the amount of electricity used in the building 80, and thereby determine whether the user is living a normal life.

When the fluctuation in electricity usage is small, the information processing system 30 determines that some abnormality (e.g., abnormal health condition) has occurred in the user, such as the user collapsing in the building 80, and transmits notification information to, for example, a first information terminal 100 used by a provider providing a monitoring service to notify the user of the abnormality. As a result, an operator of the provider providing the monitoring service arranges for a visitor to the building 80. The information processing system 30 can also directly notify the user's family members (e.g., family members living far away) by transmitting second notification information to a second information terminal 110 used by the user's family members.

Incidentally, fluctuations in electricity usage in building 80 are also small when the user leaves building 80 and is not inside building 80. For this reason, a mechanism is required that does not mistakenly determine that an abnormality has occurred in the user when the user leaves building 80.

Therefore, the information processing system 30 uses the detection results of the opening/closing sensor 20 and the human presence sensor 25 installed at the entrance/exit of the building 80 to determine whether the user has left the building 80 and is absent. This allows the monitoring system 10 to improve the accuracy of determining whether an abnormality has occurred in the user. Below, each component of such a monitoring system 10 will be described.

[Opening/Closing Sensor and Human Presence Sensor]
First, a description will be given of the open/close sensor 20 and the human presence sensor 25. Fig. 2 is a diagram showing an example of installation of the open/close sensor 20 and the human presence sensor 25.

The opening/closing sensor 20 detects the opening/closing of the door 81 installed at the entrance of the building 80, and outputs first information indicating the detection result. The opening/closing sensor 20 is a magnetic sensor realized by a magnet attached to one of the door 81 and the door frame 82, and a magnet sensor attached to the other of the door 81 and the door frame 82. The opening/closing sensor 20 may be a radio wave sensor realized by an RFID tag attached to one of the door 81 and the door frame 82, and an RFID reader attached to the other of the door 81 and the door frame 82, and the specific form of the opening/closing sensor 20 is not particularly limited. The door 81 is, for example, a front door, but may also be a back door, etc.

The human presence sensor 25 is installed in the building 80 and detects the presence or absence of a person within the detection range. The human presence sensor 25 also outputs second information indicating the detection result of the human presence sensor 25. The human presence sensor 25 is realized, for example, by a pyroelectric sensor that reacts to infrared rays emitted from the human body, but it may also be an ultrasonic human presence sensor. The specific form of the human presence sensor 25 is not particularly limited. In the example of FIG. 2, the human presence sensor 25 is installed at the entrance of the building 80 (more specifically, on the interior side of the door frame 82), but it may be installed anywhere inside the building 80.

[Control device]
The control device 40 is, for example, a HEMS (Home Energy Management System) controller having an energy management function, and is installed in the building 80 to manage the power consumption of the devices installed in the building 80. The control device 40 also acquires the status of the devices and controls the devices installed in the building 80 (or within the premises of the building 80). The control device 40 is provided by a business operator such as a home appliance manufacturer. The control device 40 is not limited to a HEMS controller, and may be another home controller or a gateway device. The control device 40 includes a control unit 41, a communication unit 42, and a storage unit 43.

The control unit 41 controls the control device 40. The control unit 41 is realized, for example, by a microcomputer, but may also be realized by a processor or a dedicated circuit.

The communication unit 42 is a communication circuit that allows the control device 40 to communicate with the open/close sensor 20, the human presence sensor 25, the server device 50, and the distribution board 60. The communication unit 42 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 used by the communication unit 42. For example, the communication unit 42 uses a local communication network when communicating with the open/close sensor 20, the human presence sensor 25, and the distribution board 60, and uses a wide area communication network 90 such as the Internet when communicating with the server device 50.

The memory unit 43 is a storage device that stores the control program executed by the control unit 41. The memory unit 43 is realized, for example, by a semiconductor memory.

[Server device]
The server device 50 performs information processing such as judging whether the user has gone out and is absent from the building 80 and judging whether an abnormality has occurred to the user. The server device 50 is provided, for example, by the home appliance manufacturer, but may be provided by another business. The server device 50 includes an information processing unit 51, a communication unit 52, and a storage unit 53.

The information processing unit 51 performs information processing such as judging whether the user has left the building 80 and is absent, and judging whether an abnormality has occurred to the user. Specifically, the information processing unit 51 includes a judgment unit 57 and an output unit 58. The information processing unit 51 is realized, for example, by a microcomputer, but may also be realized by a processor or a dedicated circuit.

The communication unit 52 is a communication circuit that enables the server device 50 to communicate with the control device 40, the first information terminal 100, and the second information terminal 110. The communication unit 52 can also communicate with the opening/closing sensor 20 and the human presence sensor 25 via the control device 40. Specifically, the communication unit 52 includes an acquisition unit 55. There are no particular limitations on the communication standard for communication performed by the communication unit 52.

The memory unit 53 is a storage device that stores the programs executed by the information processing unit 51. The memory unit 53 is realized, for example, by a semiconductor memory.

[Distribution board and lighting equipment]
The distribution board 60 is a device that measures the amount of electricity used (in other words, the amount of power consumed) in the building 80 for each branch circuit and transmits electricity usage information indicating the measured amount of electricity used to the control device 40. If a device that is turned on and off by a user's normal daily life, such as a lighting device 70, is connected to a branch circuit, the presence or absence of an abnormality in the user can be determined by monitoring the electricity usage information of the branch circuit.

The distribution board 60 is an example of a device that can measure the electricity usage of devices such as the lighting device 70, and the control device 40 can also obtain electricity usage information by communicating with devices other than the distribution board 60 that can measure the electricity usage of the devices. Examples of other devices include smart meters (in other words, electricity meters with communication capabilities).

[First information terminal and second information terminal]
The first information terminal 100 is an information terminal used by a business providing a monitoring service to receive notification information transmitted by the server device 50. The first information terminal 100 is, for example, a stationary information terminal such as a personal computer, but may also be a portable information terminal such as a smartphone or a tablet terminal.

The second information terminal 110 is an information terminal used by the user's family to receive notification information transmitted by the server device 50. The second information terminal 110 is, for example, a portable information terminal such as a smartphone or a tablet terminal, but may also be a stationary information terminal such as a personal computer.

[Example 1 of the operation for determining whether or not a person is present]
The following describes an operation for determining whether or not a person (user) is present in the building 80. Fig. 3 is a flowchart of an example 1 of the operation for determining whether or not a person is present.

First, the acquisition unit 55 of the server device 50 acquires first information indicating the detection result of the opening/closing sensor 20 and second information indicating the detection result of the human presence sensor 25 (S11). The first information and the second information are acquired via the control device 40.

More specifically, the first information is information indicating whether the door 81 is in an open or closed state. When the first information is relayed by the control device 40 to the server device 50 (acquisition unit 55), time information (in other words, a time stamp) is added to the first information by the control unit 41. Note that the first information may be added with time information by the opening/closing sensor 20, or may be added with time information by the server device 50.

More specifically, the second information is information indicating whether or not a person is present within the detection range of the human presence sensor 25. In the following, the state in which the human presence sensor 25 detects the presence of a person is also described as a state in which the human presence sensor 25 has reacted. When the second information is relayed by the control device 40 to the server device 50 (acquisition unit 55), time information (in other words, a time stamp) is added to the second information by the control unit 41. Note that the time information may be added to the second information by the human presence sensor 25, or the time information may be added to the second information by the server device 50.

Next, the determination unit 57 determines whether or not a person is present in the building 80 based on the acquired first information and the second information (S12). The determination unit 57 also stores the determination result in step S12 in the storage unit 53 (S13). Figure 4 is a time chart showing a specific example of the determination in step S12.

In addition, FIG. 4 shows the relationship between the first information, the second information, and the judgment result. In FIG. 4, the first information indicates that the door 81 is open when it is at a high level, and indicates that the door 81 is closed when it is at a low level. The second information indicates that there is a person within the detection range of the human presence sensor 25 (the human presence sensor 25 has detected a person and is responding) when it is at a high level, and indicates that there is no person within the detection range of the human presence sensor 25 (the human presence sensor 25 is not responding) when it is at a low level.

4A is a diagram showing the relationship between the first information, the second information, and the determination result when a person in the building 80 goes outside the building 80 and no one is present in the building 80. As shown in FIG. 4A, when a person in the building 80 goes outside, the human sensor 25 does not react after the first timing t1 when the door 81 transitions from the open state to the closed state. Here, if the period from the first timing t1 when the door 81 transitions from the open state to the closed state to the second timing t2 when the door 81 next transitions to the open state is defined as the first period T1, the determination unit 57 can specify the first period T1 based on the first information. When the second information indicates that the human sensor 25 does not react during the first period T1 as shown in FIG. 4A, the determination unit 57 determines that no one is present in the building 80 during the first period T1.

Figure 4(b) is a diagram showing the relationship between the first information, the second information, and the judgment result when a person outside the building 80 enters the building 80 when no one is there. As shown in Figure 4(b) , when a person outside the building 80 enters the building 80, the human presence sensor 25 reacts after the first timing t1 when the door 81 transitions from an open state to a closed state. Thus, as shown in Figure 4(b) , when the second information indicates that the human presence sensor 25 reacted during the first period T1, the judgment unit 57 judges that a person is present in the building 80 during the first period T1.

Figure 4(c) is a diagram showing the relationship between the first information, the second information, and the determination result when a person in the building 80 greets a visitor and then returns to the building 80. As shown in Figure 4(c) , when a person in the building 80 greets a visitor, the human presence sensor 25 reacts after the first timing t1 when the door 81 transitions from an open state to a closed state. Thus, as shown in Figure 4(c) , when the second information indicates that the human presence sensor 25 reacted during the first period T1, the determination unit 57 determines that a person is present in the building 80 during the first period T1.

As described above, the monitoring system 10 can determine the presence or absence of people in the building 80 using the detection results of the opening/closing sensor 20 and the human presence sensor 25 installed at the entrances and exits of the building 80.

4A, when the second information indicates that the human sensor 25 does not react during a first period T1 immediately after it is determined that a person is present in the building 80, the determination unit 57 can determine that a person has gone out of the building 80.

Furthermore, as shown in (b) of Figure 4, the judgment unit 57 can determine that someone has returned home to the building 80 when the second information indicates that the human presence sensor 25 has reacted during the first period T1 immediately after it has been determined that no one is present in the building 80.

In the example of FIG. 4, the judgment result is not specified for the period in which the first information indicates that the door 81 is open, but the judgment result for this period may be considered to be the same as the judgment result for the period immediately preceding that period, or the judgment result for the period immediately following that period.

In addition, in example 1 of the operation for determining whether or not a person is present, it was determined that a person is present in the building 80 if the human presence sensor 25 responded at least once during the first period T1. However, a requirement for determining that a person is present may be that the human presence sensor 25 responded multiple times (in other words, two or more times) during the first period T1. This prevents erroneous determination that a person is present. In this way, the determination unit 57 may determine whether or not a person is present based on whether or not the number of times that the human presence sensor 25 responded during the first period T1 is a predetermined number or more (the predetermined number is one or more times).

[Example 2 of human presence determination operation]
As shown in FIG. 4B, the determination that a person is present in the building 80 during the first period T1 is finalized at the timing when the human sensor 25 reacts after the first timing t1. On the other hand, as shown in FIG. 4A, the determination that a person is absent from the building 80 during the first period T1 is finalized at the second timing t2. In other words, if the human sensor 25 does not react after the first timing t1, the absence is not finalized until the second timing t2 when the door 81 opens next. For this reason, the determination unit 57 may not be able to provide a timely determination result of the presence or absence of a person. Therefore, the determination unit 57 may perform the determination from the first timing t1 to a third timing t3 (shown in FIG. 4) that is several to several tens of seconds after the first timing t1. FIG. 5 is a flowchart of an example 2 of the determination operation of the presence or absence of a person.

At a third timing t3 that is prior to the second timing t2, the determination unit 57 determines whether or not the human sensor 25 reacted during a second period T2 (shown in FIG. 4) from the first timing t1 to the third timing t3 (S21). The length of the second period T2 is, for example, 5 seconds, but may be several seconds to several tens of seconds.

If the human presence sensor 25 reacts during the second period T2 (Yes in S21), the determination unit 57 determines that a person is present in the building 80 during the first period T1 (S22) and stores the determination result in the memory unit 53 (S23). On the other hand, if the human presence sensor 25 does not react during the second period T2 (No in S21), the determination unit 57 determines that no person is present in the building 80 during the first period T1 (S24) and stores the determination result in the memory unit 53 (S25).

In this way, the determination unit 57 may determine whether or not a person is present at a relatively early third timing t3. In this case, it is preferable that the human presence sensor 25 is disposed near the door 81 so that the human presence sensor 25 reacts as soon as possible after the door 81 is closed if there is a person in the building 80.

After determining that the person is absent at the third timing t3 (in other words, after storing the determination result in the memory unit 53), the determination unit 57 may continue to monitor the second information of the human presence sensor 25 until the second timing t2, and further determine whether or not the human presence sensor 25 has reacted during the period from the third timing t3 to the second timing t2 (S26).

If the human presence sensor 25 reacts during this period (Yes in S26), the determination unit 57 corrects the determination result for the first period T1 at the time when the human presence sensor 25 reacts to a determination result that a person is present (S27). In other words, if the second information indicates that the human presence sensor 25 reacted during the period from when the determination result was stored to the second timing t2, the determination unit 57 corrects the determination result stored in the memory unit 53 to a determination result that a person is present in the building 80.

On the other hand, if the human presence sensor 25 does not react during the above period (No in S26), the judgment unit 57 ends the operation without correcting the judgment result.

In this way, the judgment unit 57 can confirm the judgment result early, and immediately correct the judgment result if it is considered to be erroneous.

In addition, in example 2 of the operation for determining the presence or absence of a person, if the human presence sensor 25 reacts at least once during the second period T2 (or a subsequent period), it is determined that a person is present in the building 80. However, the requirement for determining that a person is present may be that the human presence sensor 25 reacts multiple times during the second period T2 (or a subsequent period). This prevents erroneous determination that a person is present. In this way, the determination unit 57 may determine the presence or absence of a person based on whether the number of times that the human presence sensor 25 reacts during the second period T2 (or a subsequent period) is equal to or greater than a predetermined number (the predetermined number is one or more times).

[Monitoring action]
Next, a monitoring operation using the above-mentioned determination result of the presence or absence of a person (user) will be described. Fig. 6 is a diagram showing an example of a flowchart of the monitoring operation.

First, the acquisition unit 55 of the server device 50 acquires electricity usage information indicating electricity usage in the building 80 from the control device 40 (S31). The acquired electricity usage information is stored in, for example, the memory unit 53. As described above, the control device 40 manages electricity usage information of devices such as the lighting device 70 connected to the distribution board 60, and can provide such electricity usage information to the server device 50. Note that it is preferable that the electricity usage information used to monitor the user is information that changes (is turned on and off) only when the user is living normally in the building, such as electricity usage information for the lighting device 70, rather than information that changes regardless of the user's behavior, such as electricity usage information for a refrigerator.

Next, the output unit 58 reads out the result of the determination of the presence or absence of a user stored in the memory unit 53 (S32), and determines whether or not an abnormality has occurred with the user based on the electricity usage information acquired in step S31 and the result of the determination of the presence or absence of a user read in step S32 (S33).

For example, when the result of the determination of the user's presence or absence indicates that the user is present in the building 80 and the fluctuation range of the electricity usage indicated by the electricity usage information is less than a predetermined value, the output unit 58 determines that an abnormality has occurred in the user (Yes in S33) and outputs notification information (S34). In other cases, the output unit 58 determines that an abnormality has not occurred in the user (No in S33) and does not output notification information.

The notification information is information for notifying the user that it has been determined that an abnormality has occurred. The communication unit 52 transmits the notification information output by the output unit 58 to the first information terminal 100 (S35). Note that the electricity usage information and the determination result of the presence or absence of a person are managed in the memory unit 53 in association with the ID of the control device 40, and the notification information includes the ID of the control device 40.

As described above, the first information terminal 100 is used by an operator of a business that provides a monitoring service. For example, if user information in which the ID of the control device 40 and personal information of the user (specifically, name, sex, age, address of the building 80, telephone number, contact information of the user's family, ID of the second information terminal 110 used by the user's family, etc.) are associated is stored in a storage unit (not shown) of the first information terminal 100, the first information terminal 100 can identify the user for whom it is determined that an abnormality has occurred based on the ID of the control device 40 included in the notification information. Then, the operator using the first information terminal 100 can take measures according to the notification information. For example, the operator can take measures against the occurrence of the abnormality, such as dispatching a visitor to the building 80.

The notification information may be sent to the second information terminal 110 in addition to the first information terminal 100 or instead of the first information terminal 100. For example, if information in which the ID of the control device 40 and the ID of the second information terminal 110 are associated is stored in the memory unit 53, the communication unit 52 can send the notification information output by the output unit 58 to the second information terminal 110 used by the user's family. This notifies the user's family that an abnormality has occurred to the user.

If the monitoring system 10 uses the result of the determination of the user's presence or absence, it is possible to prevent the system from erroneously determining that an abnormality has occurred in the user when the user has left the building 80 and is not present in the building 80. In other words, if the monitoring system 10 uses the result of the determination of the user's presence or absence, it is possible to improve the accuracy of determining whether an abnormality has occurred in the user.

[Effects, etc.]
As described above, the information processing system 30 includes an acquisition unit 55 that acquires first information indicating the detection result of an opening/closing sensor 20 that detects the opening and closing of a door 81 installed at the entrance/exit of a building 80, and second information indicating the detection result of a human presence sensor 25 installed within the building 80, and a judgment unit 57 that judges whether or not a person is present within the building 80 based on the acquired first information and second information.

Such an information processing system 30 can determine whether or not a person is present inside the building 80.

For example, the determination unit 57 determines a first period T1 from a first timing at which the door 81 transitions from an open state to a closed state to a second timing at which the door 81 next transitions to an open state based on the acquired first information. The determination unit 57 determines that a person is present in the building 80 when the acquired second information indicates that the number of times the human sensor 25 has reacted during the first period T1 is equal to or greater than a predetermined number of times. The determination unit 57 determines that no person is present in the building 80 when the acquired second information indicates that the number of times the human sensor 25 has reacted during the first period T1 is less than the predetermined number of times.

Such an information processing system 30 can determine whether or not a person is present in the building 80 based on the number of times the human presence sensor 25 reacts during the period from when the door 81 is closed to when it is opened.

For example, the first period T1 includes a second period T2 from the first timing t1 to a third timing t3 that precedes the second timing t2. The determination unit 57 determines that a person is present in the building 80 when the acquired second information indicates that the number of times the human sensor 25 has reacted during the second period T2 is equal to or greater than a predetermined number of times. The determination unit 57 determines that no person is present in the building 80 when the acquired second information indicates that the number of times the human sensor 25 has reacted during the second period T2 is less than the predetermined number of times.

Such an information processing system 30 can determine in a timely manner whether or not a person is present in the building 80 based on the number of times the human presence sensor 25 reacts within a specified period immediately after the door 81 is closed.

For example, when the acquired second information indicates that the number of times the human presence sensor 25 reacted during the second period T2 is less than a predetermined number of times and thus the determination unit 57 determines that no one is present in the building 80, the determination unit 57 stores the determination result in the memory unit 53. When the acquired second information indicates that the number of times the human presence sensor 25 reacted during the period from when the determination result was stored until the second timing t2 is equal to or greater than a predetermined number of times, the determination unit 57 corrects the determination result stored in the memory unit 53 to a determination result indicating that a person is present in the building 80.

Such an information processing system 30 can timely determine whether or not a person is present in the building 80 based on the number of times the human presence sensor 25 reacts within a specified period of time immediately after the door 81 is closed, and can correct the determination result if it is deemed to be erroneous.

Also, for example, the judgment unit 57 judges that a person has left the building 80 when the acquired second information indicates that the number of times the human presence sensor 25 reacted during the first period T1 immediately after it was determined that a person is present in the building 80 is less than a predetermined number of times.

Such an information processing system 30 can determine that a person has left the building 80.

Also, for example, the judgment unit 57 judges that someone has returned home to the building 80 when the acquired second information indicates that the number of times the human presence sensor 25 has reacted during the first period T1 immediately after it has been determined that no one is present in the building 80 is greater than or equal to a predetermined number of times.

Such an information processing system 30 can determine that someone has returned home to the building 80.

Also, for example, the predetermined number of times is multiple times.

Such an information processing system 30 can improve the accuracy of determining whether or not a person is present.

For example, the building 80 is a residence, the door 81 is a front door, and the human presence sensor 25 is installed at the front door of the residence.

Such an information processing system 30 can improve the accuracy of determining whether or not a person is present.

For example, the information processing system 30 further includes an output unit 58 that outputs notification information to notify people in the building 80 that an abnormality has occurred based on the determination result of the determination unit 57 and the electricity usage information in the building 80.

Such an information processing system 30 can function as a monitoring system 10 that notifies people in the building 80 that an abnormality has occurred.

In addition, an information processing method executed by a computer such as the information processing system 30 acquires first information indicating the detection result of an opening/closing sensor 20 that detects the opening and closing of a door 81 installed at the entrance of the building 80, and second information indicating the detection result of a human presence sensor 25 installed within the building 80, and determines whether or not a person is present within the building 80 based on the acquired first information and second information.

This type of information processing method can determine whether or not a person is present inside the building 80.

(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, an example in which the information processing system is applied to a monitoring system has been described, but the information processing system may be applied to systems other than a monitoring system. Furthermore, the specific content of the notification information and the use of the notification are not particularly limited. For example, the information processing system may be applied to mechanical security (security system).

In addition, in the above embodiment, the information processing system is realized by multiple devices, but it may be realized by a single device (for example, either a control device or a server device). When the information processing system is realized by multiple devices, the components of the information processing system may be distributed in any manner among the multiple devices. For example, in the above embodiment, some or all of the processing performed by the server device may be performed by the control device.

Furthermore, the method of communication between the devices in the above embodiment is not particularly limited. Furthermore, a relay device (not shown) may be involved in the communication between the 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.

Furthermore, 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. Furthermore, 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. In addition, the general or specific aspects of 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 device or a server device. The present invention may also be realized as a program for causing a computer to execute the information processing method of the above-described embodiment. 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.

20 Opening/closing sensor 25 Human presence sensor 30 Information processing system 55 Acquisition unit 57 Determination unit 58 Output unit 80 Building 81 Door

Claims (10)

an acquisition unit that acquires first information indicating a detection result of an opening/closing sensor that detects opening and closing of a door installed at an entrance of a building, and second information indicating a detection result of a human presence sensor installed in the building;
A determination unit,
The determination unit is
specifying a first period from a first timing at which the door transitions from an open state to a closed state to a second timing at which the door next transitions to the open state based on the acquired first information;
When the acquired second information indicates that the number of times that the human presence sensor has responded during the first period is equal to or greater than a predetermined number of times, it is determined that a person is present in the building;
an information processing system that determines that no one is present in the building when the acquired second information indicates that the number of times the human presence sensor has responded during the first period is less than the predetermined number of times. the first period includes a second period from the first timing to a third timing that is prior to the second timing,
The determination unit is
determining that a person is present in the building when the acquired second information indicates that the number of times that the human presence sensor has responded during the second period is equal to or greater than the predetermined number of times;
The information processing system according to claim 1 , further comprising: determining that no one is present in the building when the acquired second information indicates that the number of times the human presence sensor has responded during the second period is less than the predetermined number of times. The determination unit is
When the acquired second information indicates that the number of times that the human presence sensor reacted during the second period is less than the predetermined number of times, it is determined that no one is present in the building. The determination result is stored in a storage unit.
The information processing system of claim 2, wherein when the acquired second information indicates that the number of times the human presence sensor has reacted during the period from when the judgment result was stored to the second timing is equal to or greater than the predetermined number of times, the judgment result stored in the memory unit is corrected to a judgment result indicating that a person is present in the building. The information processing system according to any one of claims 1 to 3, wherein the determination unit determines that a person has left the building when the acquired second information indicates that the number of times the human presence sensor has reacted during the first period immediately after it has been determined that a person is present in the building is less than the specified number of times. The information processing system according to any one of claims 1 to 4, wherein the judgment unit judges that someone has returned home to the building when the acquired second information indicates that the number of times the human presence sensor has reacted during the first period immediately after it has been determined that no one is present in the building is greater than or equal to the predetermined number of times. The information processing system according to any one of claims 1 to 5, wherein the predetermined number of times is a plurality of times. The building is a residence,
The door is a front door,
The information processing system according to any one of claims 1 to 6, wherein the human presence sensor is installed at an entrance of the house. The information processing system according to any one of claims 1 to 7, further comprising an output unit that outputs notification information for notifying people in the building that an abnormality has occurred based on the judgment result of the judgment unit and electricity usage information in the building. 1. A computer-implemented information processing method, comprising:
Acquire first information indicating a detection result of an opening/closing sensor that detects opening/closing of a door installed at an entrance of a building, and second information indicating a detection result of a human presence sensor installed in the building;
specifying a first period from a first timing at which the door transitions from an open state to a closed state to a second timing at which the door next transitions to the open state based on the acquired first information;
When the acquired second information indicates that the number of times that the human presence sensor has responded during the first period is equal to or greater than a predetermined number of times, it is determined that a person is present in the building;
determining that no one is present in the building if the acquired second information indicates that the number of times the human presence sensor has responded during the first period is less than the predetermined number of times. A program for causing a computer to execute the information processing method according to claim 9.

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