JP7608777B2 - Alert System - Google Patents

Description

The present invention relates to an alarm system that alerts users to abnormalities in their homes, etc.

There are still many cases of acute illnesses and accidents that occur at home. In recent years, as the population has aged and the number of people living alone has increased, responding to accidents and acute illnesses that occur at home has become increasingly important.

For example, Patent Document 1 describes a building in which sensors are installed in the living space where residents live, and when a preset abnormal condition is detected by the sensor, a notification is sent urging residents to check on their safety. Patent Document 2 also describes a body movement signal processing device that can detect the body movements of a subject in the bathroom.

JP 2015-26146 A (published on February 5, 2015) Patent No. 6537701 (published on September 8, 2017)

In the conventional technology described above, there is room for improvement in the configuration when an abnormality occurs with a resident or the like and a call is made between the resident or the like and an external device (operator) that is the destination of the alert.

One aspect of the present invention aims to improve the configuration when an abnormality occurs in a resident or the like and a call is made between the resident or the like and an external device that is the destination of the alert.

In order to solve the above problems, an alarm system according to one aspect of the present invention includes one or more sensors, and multiple communication devices that are connected to an external device that is the destination of an alarm when the detection result of at least one of the one or more sensors indicates that an abnormality has occurred in the target. With the above configuration, for example, a resident or the like can use a nearby communication device to make a call to the external device when an abnormality occurs. Furthermore, by using multiple communication devices, it becomes easier for housemates or the like to notice an abnormality in the resident or the like. In this way, it is possible to improve the configuration when an abnormality occurs in the resident or the like and the resident makes a call to the external device that is the destination of an alarm.

In an alarm system according to one aspect of the present invention, in response to an instruction transmitted from the external device, voice input from at least one of the communication devices may be enabled, and voice input from the other communication devices may be disabled. With the above configuration, for example, unnecessary voice that becomes noise among the voices transmitted to the external device may be blocked, making the call voice clearer.

In an alarm system according to one aspect of the present invention, each communication device corresponds to one or more of the sensors, and may enable voice input from the communication device corresponding to the sensor that detected an abnormality in the target, and disable voice input from other communication devices. With the above configuration, for example, it is possible to automatically enable voice input and output from a communication device located near a sensor that detected an abnormality, and automatically enable only voice output from other communication devices.

The alarm system according to one aspect of the present invention may further include a management unit that determines the operating status of each of the one or more sensors and the multiple communication devices. With the above configuration, it is possible to notify an external device that a device is not operating due to, for example, a malfunction.

In the alarm system according to one aspect of the present invention, the sensor may further include a key management unit that detects a lockable space and controls the opening and closing of a lock provided in the space in response to an instruction sent from the external device. With the above configuration, the space can be unlocked by remote control, for example, when an emergency responder arrives.

In an alarm system according to one aspect of the present invention, at least one of the one or more sensors may sense at least one of the subject's heart rate and breathing in a non-contact manner. With the above configuration, an alarm can be issued to multiple external devices when an abnormality occurs in the subject's heart rate or breathing.

The alarm system according to each aspect of the present invention may be realized by a computer. In this case, the control program for the alarm system that causes the computer to operate as each unit (software element) of the alarm system to realize the alarm system on the computer, and the computer-readable recording medium on which the control program is recorded, also fall within the scope of the present invention.

According to one aspect of the present invention, it is possible to improve the configuration when an abnormality occurs in a resident or the like and a call is made between the resident or the like and an external device that is the destination of the alert.

FIG. 1 is an example of a functional block diagram showing an overall overview including an alarm system. FIG. 2 is a functional block diagram of a communication device; 1 is an example of a sequence diagram showing an overall flow of processing in an alarm system or the like. 1 is an example of a sequence diagram showing an overall flow of processing in an alarm system or the like. 1 is a diagram showing an example of a connection between a communication device, a photographing device, and a reception management device;

[Embodiment]
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Note that the embodiment described below is subject to various technically preferable limitations for carrying out the present invention, but the scope of the present invention is not limited to the following embodiment and illustrated examples.

[Overall Overview]
First, an overview of the alarm system 1 according to the present embodiment will be described with reference to Fig. 1. Fig. 1 is a functional block diagram showing an overview including the alarm system 1. As shown in Fig. 1, the alarm system 1 is a system for checking whether there is any abnormality in the heart rate, etc. of a resident 15, etc. in a lockable space portion 10, and if there is an abnormality, for example, issuing a notice to that effect to a reception management device (external device) 20 operated by an operator to confirm the safety and request an emergency rescue. Hereinafter, a person who is the subject of safety confirmation by the alarm system 1, or a person who may be the subject, may also be referred to as a target person.

[Specific examples of lockable spaces]
The lockable space 10 is not limited to buildings that are fixed, such as a residence, a dormitory, an apartment building, or a facility, but also includes vehicles that are not fixed, such as passenger ships and sleeper trains. Furthermore, the lockable space 10 is not limited to buildings that are isolated from the outside air.

The above-mentioned residences are not limited to detached houses for single households, but also include non-compartmental buildings such as two-family homes where multiple households lock and manage each household's locks, and housing for the elderly with service facilities. Dormitories are not limited to a system where each room is not locked and the entire building is locked, but include buildings where each room other than the common areas is locked and managed individually. Apartment complexes are not limited to rooms that are private areas of compartmentalized buildings such as apartments and condominiums, but also include attached buildings that can be locked. Condominiums include a system where each room is locked and managed individually, as well as a system where the entire condominium is locked and managed.

Facilities include accommodation facilities such as hotels, inns, and private lodging facilities; welfare and nursing facilities such as nursing homes and day care centers; medical facilities such as hospitals and clinics; education and childcare facilities such as schools, kindergartens, nursery schools, daycare centers, and after-school programs; commercial facilities such as offices, theaters, cafe complexes, and karaoke boxes; exhibition facilities such as art galleries and museums; public facilities such as community centers and children's centers; athletic fields such as gymnasiums and martial arts halls; and public washrooms, warehouses, factories, garages, etc.

Vehicles include automobiles such as private cars, buses, and taxis; trains such as regular cars and sleeper cars; aircraft such as airplanes and helicopters; ships such as regular ships, accommodation ships, and submarines; and spacecraft such as space stations and rocket transport vehicles.

For example, if the lockable space 10 is a residence or an apartment building, the target person 15 may be a resident or his/her family, a temporary visitor, etc. If the lockable space 10 is a facility, the target person 15 may be a visitor, not limited to an employee.

In the following, the alarm system 1 will be described as being installed in a home, but as mentioned above, part or all of the system may be installed in a facility such as a hospital or in any other space.

As shown in FIG. 1, the alarm system 1 includes one or more communication devices (information processing device, speaker microphone) 11, one or more sensors (sensor edges) 28, a management device (management unit, edge system) 26, a key management unit 36, and an image capture device (information processing device) 38, all of which are associated with each other. Each communication device 11 corresponds to one or more sensors 28 in the vicinity. However, one sensor 28 may correspond to multiple communication devices 11.

Figure 2 is a functional block diagram of the communication device 11. The communication device 11 is a device for performing voice communication with the reception management device 20, and as shown in Figure 2, is equipped with a control unit 12, a memory unit 21, a communication unit 22, an alarm unit 23, and an input/output unit 24. In addition, each communication device 11 operates in conjunction with each other, and can synchronize information stored in the memory unit 21, for example. It is desirable to install each communication device in a position that is somewhat separated from each other, such as in a different room.

The control unit 12 is a control device that controls the entire communication device 11 and also functions as the acquisition unit 13.

When at least one of the one or more sensors 28 detects an abnormality in the target, the acquisition unit 13 acquires an encryption key for communicating with the reception management device 20, which is the destination of the alert, from the infrastructure server 42 via the management device 26.

The memory unit 21 is a storage device that stores various information, and at least temporarily stores, for example, the encryption key acquired by the acquisition unit 13. The communication unit 22 is an interface that performs communication processing with an external device, and performs at least one of audio communication and video communication with the reception management device 20 using, for example, the encryption key. Note that the communication unit 22 may be configured to connect to the relay device (relay server) 40 via a router or the like (not shown).

The alarm unit 23 outputs an alarm based on control by the management device 26 via the control unit 12. The alarm unit 23 may be realized as, for example, a buzzer or an LED, and may be configured to output an alarm by alarm sound or light. It may also be configured to output an alarm according to an abnormality detected by the sensor 28. For example, the alarm unit 23 may be configured to output a louder sound or stronger light the greater the degree of abnormality in the subject.

The input/output unit 24 inputs and outputs audio. The input/output unit 24 may also input video. The input/output unit 24 may be realized as a microphone and speaker that input and output audio in audio communication with the reception management device 20, or a camera that captures video to be transmitted to the reception management device 20.

Furthermore, the communication device 11 is not limited to being installed at a specific position within the space 10. For example, a part or all of the communication device 11 may be realized as a mobile terminal such as a smartphone or tablet that is not fixed to a specific position. Furthermore, the communication device 11 may be configured to be able to add functions such as Wi-Fi (registered trademark) or an AI speaker, for example, by expanding the built-in software.

As described below, one or more communication devices 11 are connected via a relay device 40 to a reception management device 20 that is the destination of an alert when the detection result of at least one of one or more sensors 28 indicates that an abnormality has occurred in the target.

The sensor 28 non-contactly senses at least one of the subject's heart rate and breathing rate within the detection range of the lockable space portion 10, and measures at least one of the subject's heart rate and breathing rate.

The sensor 28 also refers to its own sensing results to determine whether or not an abnormality has occurred in the target. However, the above determination may be performed by a device independent of the sensor 28, or by the management device 26. The sensor 28 may also include a range sensor or the like, calculate the target's height based on the detection results, and determine whether or not an abnormality has occurred based on criteria according to the identified person.

In another embodiment, the vital data measured by the sensor 28 is not limited to heart rate or respiration, and may be configured to measure other vital data such as body temperature or sweat rate. As described below, the subject measured by the sensor 28 is not limited to a person. The sensor 28 may be composed of multiple types of sensors, and may be a pyroelectric sensor (infrared array sensor), FMCW radar (Frequency Modulated Continuous Wave radar), a Doppler sensor, a temperature sensor, a chemical sensor, or the like. For example, as shown in FIG. 1, the position of the subject may be detected by a pyroelectric sensor, and the heart rate or respiration rate may be measured by a Doppler sensor.

The management device 26 is a device realized as a personal computer or the like, and controls each device in the alarm system 1, and transmits and receives information to and from the infrastructure server 42, etc. For example, when the management device 26 acquires information from the sensor 28 indicating that an abnormality has occurred in an object, it transmits the above information, information indicating the reception management device 20 to which it is connected, and information indicating the alarm system 1 itself, which is the source of the alarm, or each device included in the alarm system 1, to the infrastructure server 42.

The management device 26 or another device not shown may be configured to determine the operating status of each component of the alarm system 1, such as the sensor 28, the communication device 11, or the imaging device 38, and record the determination results. If at least some of the components of the alarm system 1 are not operating due to a malfunction or the like, information indicating this may be transmitted from the alarm system 1 to the reception management device 20, or presented to the subject via the communication device 11 or the like.

The key management unit 36 responds to instructions sent from the reception management device 20 and controls the opening and closing of the electronic lock installed at the entrance and exit of the lockable space portion 10.

The photographing device 38 is a device that is installed so that it can photograph the vicinity of the entrance outside the space 10. The configuration of the photographing device 38 is similar to that of the communication device 11 shown in FIG. 2, and redundant explanations will not be repeated.

The input/output unit 24 of the imaging device 38 is realized as a camera that captures images to be sent to the reception management device 20, and inputs images to the imaging device 38. In addition, the input/output unit 24 of the imaging device 38 may also include a microphone and a speaker for audio input and output. The acquisition unit 13 of the imaging device 38 acquires an encryption key for communicating with the reception management device 20, which is the destination of the alert, from the infrastructure server 42 via the management device 26 when at least one of the one or more sensors 28 detects that an abnormality has occurred in the target. Note that the imaging device 38 of the alert system 1 is not limited to being a single device, and one or more imaging devices 38 may be provided near each of one or more entrances/exits, for example.

From another perspective, the information processing device according to the present disclosure, which is realized as the communication device 11 or the imaging device 38, can be said to be an information processing device associated with one or more sensors 28, and includes an acquisition unit 13 that acquires an encryption key for communicating with the reception management device 20, which is the destination of an alert, when at least one of the one or more sensors 28 detects an abnormality in the target, a communication unit 22 that uses the encryption key to perform at least one of audio communication and video communication with the reception management device 20, and an input/output unit 24 that performs at least one of audio input/output and video input.

Next, devices not included in the alarm system 1 in FIG. 1 will be described. The infrastructure server 42 is a server deployed on the cloud, and stores, for example, information about the target person using the alarm system 1, information indicating each device connected via the relay device 40, or encryption keys for each device to communicate, or information for generating encryption keys.

When the infrastructure server 42 receives information from the management device 26 indicating that an abnormality has occurred in the target, it transmits the information and information indicating the source of the report to the reception management device 20. The infrastructure server 42 also transmits an encryption key for communication via the relay device 40 and other information necessary for communication to the management device 26 and the reception management device 20. Here, the information necessary for the communication is, for example, information indicating the connection destination for communication via the relay device 40, an ID number for identifying the connection itself, etc.

The reception management device 20 is a device that is the destination of a report if an abnormality occurs with a target person. The reception management device 20 is realized, for example, as a terminal device operated by an operator. The reception management device 20 may be operated by an operator, but may also replace some or all of the operator's work with machine learning such as AI. Because the data related to the reception handled by the operator contains a large amount of information, it is also useful to generate judgment information using machine learning such as AI.

The specific method for data analysis and judgment information generation processing by the reception management device 20 is not limited to this embodiment, and for example, any of the following machine learning methods or a combination of them can be used.

・Support Vector Machine (SVM)
・Clustering
・Inductive Logic Programming (ILP)
・Genetic Algorithm (GP: Genetic Programming)
・Bayesian Network (BN)
・Neural Network (NN)
When using a neural network, it is advisable to process the input sensing data in advance for input to the neural network. For such processing, in addition to one-dimensional or multi-dimensional arrangement of data, a method such as data augmentation can be used.

When using a neural network, a convolutional neural network (CNN) including convolution processing may be used, or a recurrent neural network (RNN) including recursive processing may be used. More specifically, when using a CNN, a convolutional layer that performs convolutional calculations may be provided as one or more layers included in the neural network, and a filter calculation (product-sum calculation) may be performed on the input data input to the layer. When performing a filter calculation, processing such as padding may be used in combination, or an appropriately set stride width may be adopted.

In addition, a multi-layer or ultra-multi-layer neural network with tens to thousands of layers may be used as the neural network.

In addition, the machine learning used in data processing may be supervised learning or unsupervised learning.

The programs and/or data used in data processing are preferably stored in the device that executes the machine learning method itself, but may also be stored in an external storage device.

In the alarm system 1 according to this embodiment, if a subject 15 using the lockable space 10 collapses in the lockable space 10 and becomes in an abnormal state, the reception management device 20 or the operator checks for safety, and if the safety cannot be confirmed, an emergency call is made, and after confirming that it is a rescue worker 35 who has arrived at the lockable space 10, the lock installed in the lockable space 10 is unlocked. This makes it possible to safely, reliably, and quickly respond to any abnormalities in the subject 15 using the lockable space 10.

It may be possible to determine whether the subject 15 using the lockable space 10 is in a prone state, and if so, whether there are any abnormalities in the heart rate, respiratory rate, etc., or it may be possible to determine whether the subject 15 is in a prone state, but based on a significant difference from normal in the heart rate, respiratory rate, etc.

When the reception management device 20 receives information from the infrastructure server 42 indicating that an abnormality has occurred in the target, the reception management device 20 communicates with each communication device 11 and imaging device 38 via the relay device 40 using information such as an encryption key required for communication. In addition, while the reception management device 20 is performing the above communication via the relay device 40, the reception management device 20 may be configured to be able to obtain information indicating the measurement results of the sensor 28 in real time, for example, via the management device 26, the communication device 11, and the relay device 40.

The relay device 40 is a server that relays communication between each of the call devices 11 and the photographing device 38 and the reception management device 20 by communication using WebRTC (Web Real-Time Communication) or the like. The communication method in the communication relayed by the relay device 40 is not limited to a specific method, and may be a communication method using WebRTC as described above, or a method using RTMP (Real Time Message Protocol) or SIP (Session Initiation Protocol), or the like. For example, when P2P (Peer to Peer) using WebRTC is used as the communication configuration, the relay server is realized as a signaling server or an authentication server for establishing P2P communication between each device. When WebRTC or the like is used in the communication, the communication configuration is not limited to P2P, and may be an MCU (Multipoint Control Unit) or an SFU (Selective Forwarding Unit), or the like.

[Processing flow in the reporting system]
Next, a process flow in the alarm system 1 will be described with reference to Fig. 3 and Fig. 4. Fig. 3 and Fig. 4 are sequence diagrams showing the overall process flow in the alarm system 1, etc. Following the process shown in Fig. 3, the process shown in Fig. 4 is executed.

First, the sensor 28 determines whether or not a subject has been detected within the detection range (S101). If the sensor 28 detects a subject (YES in S101), it measures the subject's heart rate or respiratory rate (S102). If the sensor 28 does not detect a subject (NO in S101), the process of waiting for the sensor 28 to detect a subject continues.

Then, the sensor 28 judges whether or not there is an abnormality in the subject by referring to its own detection result (S103). If the sensor 28 judges that an abnormality has occurred in the subject (YES in S103), an alarm is issued from the alarm system 1 (S104). That is, as described above, information indicating that an abnormality has occurred in the subject is output from the sensor 28 to the management device 26, and the management device 26 transmits the above information, information indicating the reception management device 20 to which the connection is to be made, and information indicating the source of the alarm, etc., to the base server 42. Also, for example, in step S104, the alarm unit 23 of the communication device 11 may output an alarm for a predetermined period of time, for example, by an alarm sound or light, based on the control of the management device 26. Also, if the subject's physical condition recovers after the above alarm is output, the configuration may be such that an instruction to cancel the alarm and alarm can be issued to the management device 26 or the communication device 11 via a mobile terminal such as a smartphone held by the subject himself.

If the sensor 28 determines that no abnormality has occurred in the subject (NO in S103), the process is repeated from step S101.

Then, the infrastructure server 42 authenticates the management device 26 and then transmits to the management device 26 an encryption key for communicating via the relay device 40, and other information necessary for communication. The infrastructure server 42 also authenticates the reception management device 20 and then transmits to the reception management device 20 information indicating that an abnormality has occurred in the target, information indicating the source of the alert, an encryption key for communicating via the relay device 40, and other information necessary for communication (S105).

In addition, in step S105, the base server 42 may separately transmit information indicating that an abnormality has occurred in the subject to one or more terminal devices, such as a smartphone held by a family member of the subject, that have been registered in advance.

Then, the call device 11 and the image capture device 38, which have acquired information necessary for communication such as an encryption key via the management device 26, and the reception management device 20 each access the relay device 40 and communicate via the relay device 40 (S106, acquisition step, communication step, input/output step). Here, at least voice communication is performed between the reception management device 20 and the call device 11, and at least video communication is performed between the reception management device 20 and the image capture device 38, in which a captured image is sent from the image capture device 38 to the reception management device 20.

As described above, in the processing of the alarm system 1, etc., an information processing method is executed by an information processing device (communication device 11, imaging device 38) associated with one or more sensors 28, and includes an acquisition step of acquiring an encryption key for communicating with the reception management device 20, which is the destination of the alarm, when at least one of the one or more sensors 28 detects that an abnormality has occurred in the target, a communication step of using the encryption key to perform at least one of audio communication and video communication with the reception management device 20, and an input/output step of performing at least one of audio input/output and video input.

Then, the reception management device (operator) 20 calls the subject by calling the communication device 11 to confirm the subject's safety (S107). Here, the reception management device 20 may enable voice input from at least one of the communication devices 11 to which the subject is responding by referring to the response to the call or real-time measurement results from the sensor 28, and then transmit an instruction to the communication device 11 via, for example, the relay device 40 to disable voice input from the other communication devices 11. By each communication device 11 operating in accordance with the above instruction, unnecessary voice that becomes noise among the voices transmitted to the reception management device 20 can be blocked, making the call voice clearer.

Figure 5 is a diagram showing an example of the connection between the communication devices 11 (11a to 11c, ...) and the imaging device 38 and the reception management device 20. However, in Figure 5, the relay device 40 is omitted. Also, the number of communication devices 11 and imaging devices 38 is not limited to the configuration shown in Figure 5.

Figure 5 also shows an example of a case where the reception management device 20 sends an instruction to the communication devices 11b and 11c to disable audio input to the input/output unit 24 (microphone). In the example of Figure 5, audio from the reception management device 20 is output from the input/output unit 24 (speaker) of the communication devices 11a to 11c and the imaging device 38, while the reception management device 20 outputs the audio input to the input/output unit 24 of the communication device 11a, and the video and audio input to the input/output unit 24 of the imaging device 38.

In a broader aspect, the input/output unit 24 of the communication device 11 or the imaging device 38 may disable at least one of the audio input or output, or the video input, in response to an instruction sent from the reception management device 20. In this way, basically, each audio and video is sent to the reception management device 20, but the reception management device 20 can select and block unnecessary audio or video input or output in order to properly conduct a call, etc.

The alarm system may further be capable of switching the communication device 11 or the imaging device 38 to disable at least one of the audio input or output, or the video input, in response to an instruction sent from the reception management device 20. This allows the reception management device 20 to suitably switch the input and output of each device at any time, even if the target person moves after connection. This also contributes to the reception management device 20 quickly determining that the alarm is a false alarm.

If the reception management device 20 checks the safety of the subject and determines that the subject is safe and without any abnormality (YES in S108), the processing shown in the sequence diagrams of Figures 3 and 4 ends, and the reception management device 20 waits for the next processing until it receives an alarm from the alarm system 1. If it is determined that the subject is unwell and is not safe (NO in S108), the reception management device 20, for example, ends the call and issues an emergency call to the fire department 30 (S109). Then, when the emergency personnel 35 is dispatched from the fire department 30 and arrives at the lockable space 10 used by the subject 15 (S110), the call button is pressed and the visitor is photographed by the imaging device 38 installed in the lockable space 10. The photographed image is then transmitted to the reception management device 20 via the relay device 40. The reception management device 20 checks whether it is the emergency personnel 35 who has arrived at the lockable space 10 by the image photographed by the imaging device 38 (S111, arrival information presentation step). The image captured by the image capture device 38 may be transmitted to the reception management device 20 when an alert is generated by the communication device 11.

If it is confirmed that the person is an ambulance technician 35 (YES in S111), the reception management device 20 sends an instruction to unlock the door of the lockable space portion 10 to the key management unit 36 via, for example, the infrastructure server 42 and the management device 26 (S112). The key management unit 36, which has received the unlock instruction from the reception management device 20, controls the electronic lock to unlock the door of the lockable space portion 10 (S113, unlocking step).

This allows emergency personnel 35 to be sent to the subject promptly if something abnormal occurs to the subject.

An example of the overall processing flow in the alarm system 1 etc. has been described above. Note that the control to unlock the electronic lock from the reception management device 20 may be configured to be possible only for a predetermined time after the alarm is issued in S104, for example. Furthermore, when the reception management device 20 confirms that the ambulance crew 35 has carried the subject out of the space 10 from the entrance/exit, it is desirable for the reception management device 20 to issue an instruction to the key management unit 36 to lock the door of the space 10 that can be locked.

Furthermore, the use of the alarm system 1 is not limited to checking the safety of a subject, but can also be used, for example, as a crime prevention system that issues an alarm if an intruder is detected in a home or the like. For example, in a configuration in which the alarm system 1 is used as the crime prevention system described above, the reception management device 20 receives information from the communication device 11 indicating that an intruder has been detected in the space 10, and may issue an alarm to a security company or the police, etc., if there is no response from the resident to the call corresponding to the processing of step S107. The alarm system 1 can also be used to issue an alarm in the event of a fire, gas leak, etc. In other words, the subjects for which the alarm system 1 determines abnormality are not limited to people.

Furthermore, the process of disabling at least one of the audio input or output, or the video input, by the input/output unit 24 of some of the communication devices 11 or the imaging device 38 is not limited to the aspect based on instructions sent from the reception management device 20 as described above. For example, the alarm system 1 may enable audio input by a communication device 11 corresponding to a sensor 28 that has detected an abnormality in the target, and disable audio input by other communication devices 11. Furthermore, the communication device 11 for which audio input is enabled or disabled may automatically switch in response to, for example, the movement of the target.

With the above configuration, the alarm system 1 can, for example, automatically enable audio input and output for a communication device 11 located near a sensor 28 that detects an abnormality, and automatically enable only audio output for other communication devices 11.

When an abnormality occurs in the target, the management device 26 may report the abnormality to the reception management device 20 via, for example, a mobile terminal, in addition to the infrastructure server 42. As an example, when the infrastructure server 42 receives information indicating that an abnormality has occurred in the target from the management device 26, the mobile terminal may receive the information and transmit it to the reception management device 20. In the above configuration, when the reception management device 20 obtains the information, it accesses the relay device 40 to obtain information necessary for communication, such as an encryption key.

〔summary〕
The alarm system (1) according to aspect 1 of the present invention is configured to include one or more sensors (28) and a plurality of communication devices (11) that are connected to an external device (20) to which an alarm is to be sent when the detection result of at least any of the one or more sensors indicates that an abnormality has occurred in an object.

The alarm system according to aspect 2 of the present invention may be configured in the above aspect 1 to enable voice input from at least one of the communication devices and disable voice input from the other communication devices in response to an instruction transmitted from the external device.

In the alarm system according to aspect 3 of the present invention, in the above aspect 1, each communication device may correspond to one or more of the sensors, and voice input by the communication device corresponding to the sensor that detects an abnormality in the target may be enabled, while voice input by the other communication devices may be disabled.

The alarm system according to aspect 4 of the present invention may be configured in any one of aspects 1 to 3 above, further comprising a management unit (26) that determines the operating status of each of the one or more sensors and the multiple communication devices.

The alarm system according to aspect 5 of the present invention may be configured in any one of aspects 1 to 4 above, such that the sensor detects a lockable space and further includes a key management unit (36) that controls the opening and closing of a lock provided in the space in response to an instruction transmitted from the external device.

The alarm system according to aspect 6 of the present invention is any one of aspects 1 to 5 above, and at least one of the one or more sensors may be configured to sense at least one of the subject's heart rate and breathing in a non-contact manner.

[Software implementation example]
The control block included in the alarm system 1 (particularly the acquisition unit 13 of the control unit 12) may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or may be realized by software.

In the latter case, the alarm system 1 includes a computer that executes the instructions of a program, which is software that realizes each function. The computer includes, for example, one or more processors, and a computer-readable recording medium that stores the program. The object of the present invention is achieved by the processor reading the program from the recording medium and executing it in the computer. The processor can be, for example, a CPU (Central Processing Unit). The recording medium can be a "non-transient tangible medium," such as a ROM (Read Only Memory), tape, disk, card, semiconductor memory, programmable logic circuit, etc. The system may also include a RAM (Random Access Memory) that expands the program. The program may be supplied to the computer via any transmission medium (such as a communication network or broadcast waves) that can transmit the program. One aspect of the present invention can also be realized in the form of a data signal embedded in a carrier wave, in which the program is embodied by electronic transmission.

The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. The technical scope of the present invention also includes embodiments obtained by appropriately combining the technical means disclosed in different embodiments.

1: Alarm system 11: Communication device (information processing device, speaker microphone)
12 Control unit 13 Acquisition unit 20 Reception management device (external device, operator)
21 Memory unit 22 Communication unit 23 Alarm unit 24 Input/output unit 26 Management device (management unit, edge system)
28 Sensor (sensor edge)
36 Key management unit 38 Photographing device (information processing device)
40 Relay device (relay server)
42 Infrastructure Server

Claims (5)

One or more sensors;
a plurality of communication devices connected to an external device as a notification destination when at least one of the detection results of the one or more sensors indicates that an abnormality has occurred in the target ;
Each communication device corresponds to one or more of the sensors,
The voice input from the communication device corresponding to the sensor that detected the abnormality in the target is enabled, and the voice input from the other communication devices is disabled.
The present invention relates to an alarm system. The alarm system according to claim 1, characterized in that in response to an instruction transmitted from the external device, voice input through at least one of the communication devices is enabled, while voice input through the other communication devices is disabled. 3. The alarm system according to claim 1, further comprising a management unit that determines an operational status of each of the one or more sensors and the plurality of communication devices. The sensor detects a lockable space,
The alarm system described in any one of claims 1 to 3 , further comprising a key management unit that controls the opening and closing of a lock provided in the space portion in response to instructions transmitted from the external device. At least one of the one or more sensors
5. The alarm system according to claim 1 , wherein at least one of a heart rate and a respiration of the subject is sensed in a non-contact manner.

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