JP2016085577A - Suicide prevention system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suicide prevention system for preventing suicides by highly precisely screening people who are likely to or going to commit suicide out of people living in similar closed spaces and for supporting saving of life by detecting people who are exhibiting a sign of desire for suicide or who have attempted suicide early.SOLUTION: A suicide prevention system includes a sensor unit A and a control unit B installed in a closed facility. The sensor unit A has a microwave sensor 1 and an image sensor 2, and the control unit B has a terminal device X including: analysis means 3 acquiring biological data or events on suicides or possible suicides from the output from the sensor unit A; a database 5 storing individual and general elements of a watching target person, who is likely to attempt suicide; and evaluation means 4 drawing the suicide or the possibility of the suicide of the target from the biological data or events obtained by the analysis means 3 and the individual and general elements stored in the database 5.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a suicide control system for preventing and preventing suicide in a closed facility such as a detention center, a detention center, a prison, or a psychiatric ward.

Today, it is said that suicide is attempted at intervals of about once every 3 seconds, and suicide is being carried out at intervals of about 1 minute. It can be said that reducing such suicide is an important issue worldwide.
In particular, it is said that inmates such as prisons called correctional facilities among the closed facilities show a very high suicide rate when compared to other groups.

  Suicide that occurred in the correction facility is not limited to problems related to the state and responsibility of the facility, but has elements that develop into social problems. Therefore, taking appropriate interventions to prevent suicide in the daily lives of inmates is extremely beneficial not only for inmates, but also for the facilities that monitor and protect them, as well as for society. It can be said that.

The relatively high suicide rate in the closed facility can be explained by a combination of various factors.
The closed facility contains a group of people with the highest risk of suicide in society, such as young men, persons with mental disabilities, persons who have been deprived of certain rights in society, isolated persons, substance dependent persons or persons who have attempted suicide. It is a facility.
The psychological impacts of arrests, detentions or detentions for groups with the highest risk of suicide and the stress associated with daily life in closed facilities exceed the capacity of those detained in such facilities. Of course, it is possible.

The closed facility is responsible for protecting the health and safety of the inmate as described above.
However, closed facilities such as those described above generally have a large shortage of staff with respect to the number of people accommodated. The instability of this situation is a fact that the serious problem of frequent suicide cannot be solved.
In fact, there are not always guidelines or procedures for identifying and responding to people at high risk of suicide, and if they do exist, early warnings about the risk of suicide will occur for busy and undertrained personnel. Sometimes you miss a sign.

  As described above, in the closed facility, it is extremely difficult to increase the number of staff in terms of management, and it is inevitable that vacancies are left in existing facilities. Even if it is possible to increase the number of workers, there is no denying that there is a shortage of immediate fighting power. The shortage of on-site fighting power until new employees become strong is a problem that cannot be overlooked.

In recent years, the number of facilities has been increased or remodeled to improve overcapacity, but it is still extremely difficult to secure staff members to meet the increase in storage space, and the burden on each staff member has increased. There is a concern that
In this way, the closed facility seems to be even isolated from the local insurance business, and it is difficult for those who are housed in it to receive treatment and care by mental health professionals. It can be said that there is.

  Conventionally, as a technique related to suicide suppression, as shown in the following patent document, whether or not a suicide attempter uses a computer based on information obtained by photographing and image processing with an infrared camera and patterning the behavior of many suicide attempters. A system for identifying is provided.

JP 2011-66867 A Utility Model Registration No. 3158773

However, the conventional method described above is a system for discriminating between those who are pessimistic about life and who plan to commit suicide, and those who enjoy life such as fishermen and tourists, and are relatively close to living in the same closed space. It is inadequate as a suicide control system that discriminates and prevents suicide attempters from those in the situation and prevents irreparable situations.
In addition, the infrared sensor has a problem that it is vulnerable to disturbances such as light and heat.
For example, it is difficult to detect body temperature if you wear a futon, and even if you do not wear a futon, you can only detect human movements, so there is less judgment material and the detection takes time and the accuracy is low. There is.

  The present invention has been made in view of the above circumstances, and it is possible to discriminate suicide reservers and suicide attempters with high probability from those who live in a similar enclosed space with high probability, and to prevent suicide. It aims at providing the suicide control system which can detect the person who performed and the person who performed the suicide act early, and can support lifesaving.

  The suicide suppression system according to the present invention made to solve the above problems is composed of a sensor unit and a control unit installed in a closed facility, and the sensor unit includes a microwave sensor and an image sensor, and the control unit includes: Analyzing means for deriving biometric data or events relating to suicidality or suicidality from the output of the sensor unit, a database for storing individual elements and general elements to be monitored relating to suicide performance, and the biometric data or previous data derived by the analyzing means And a terminal device comprising: an evaluation means for inducing suicide of a monitoring target or suicidality from the individual elements and the general elements stored in the database.

  The analysis means may derive an event including heartbeat, respiration, and body movement from the output of the sensor unit, and when the evaluation means leads to the suspected suicide or performance of the suicide act, It is good also as a structure provided with the suppression means to emit the stimulus by the light or sound with respect to the monitoring object.

According to the suicide suppression system according to the present invention, the vital signs, posture, and movement of the monitoring target can be relatively accurately derived by providing the microwave sensor and the image sensor that reinforces the information obtained therefrom.
In addition, a person who lives in the same enclosed space by providing an evaluation means that takes into account the information obtained from the microwave sensor and the image sensor and further adding individual elements or general elements to be monitored regarding suicide performance or a combination thereof. Among them, it is possible to determine a suicide attempter and the like relatively accurately.

  Screening 24 hours a day, 7 days a week using these sensors and the above-mentioned evaluation means is appropriate and effective for suicide reservers and those who intend to commit suicide, based on who intends to commit suicide under what circumstances. Intervention can be carried out.

As a result, it is possible to easily introduce a system in which people and opportunities collaborate from human naval tactics under the circumstances where it is difficult to secure human resources, further improving the quality of human monitoring and protection. In addition to being able to realize effective suicide prevention while reducing the physical burden, mental burden and time burden of the person involved in the work, the person who performed the suicide act died or became a plant state Such an irreparable situation can be prevented in advance.
As the data is further enriched by continuing the unpaid screening, the prevention accuracy of the system is improved.

It is a block diagram which shows an example of the suicide suppression system by this invention. It is a block diagram which shows the hardware constitutions of the suicide suppression system by this invention. 3 shows an example of a control table for deriving a suicide factor from a combination of events in the suicide suppression system according to the present invention. 1 shows an example of a comparison table for deriving a suicide factor from a combination of an event pattern, a change, or a change degree in a suicide suppression system according to the present invention.

Embodiments of a suicide suppression system according to the present invention will be described below in detail with reference to the drawings.
The suicide control system according to the present invention includes, for example, a terminal device X installed at a key point of a closed facility such as a detention center, a detention center, a prison, or a psychiatric ward, and a monitoring device connected to the terminal device X via a communication network. The apparatus Y is comprised.
The monitoring device Y is installed in a control center or the like installed inside or outside the closed facility, and notifies necessary information to a medical institution or various jurisdictions.

The terminal device X includes a sensor unit A and a control unit B.
The sensor unit A is a biological sensor that detects a human body such as a microwave sensor 1 (see, for example, Japanese Patent Application Laid-Open No. 2011-34938) 1 or an image sensor 2 that detects the ecology to be monitored, or date, temperature, humidity, illuminance, odor, It comprises an environmental sensor that detects operation of equipment such as a switch, and a communication device 12 that transmits the output of those sensors to the control unit B (see FIG. 1).

  The sensor unit A is arranged so that the entire life to be monitored can be seen or grasped, such as a dedicated or shared living room, toilet, washroom, kitchen (or hot water supply room), work place, bath, corridor, etc. A technique such as camouflaging or embedding in a wall or ceiling is used so as to make it inconspicuous (see, for example, JP-A-2002-117466).

  The control unit B includes a calendar that holds a calendar, a timer that detects time and measures time, an information processing device that includes a microprocessor, a memory, an I / O interface, a communication interface, and the like, and a recording device (See FIG. 2).

  The control unit B is an analysis means 3 for analyzing the signals of the biological sensor and the environmental sensor received from the sensor unit A as specific means for cooperation between the hardware resource and software incorporated therein. And the database 5 storing the personal information of each monitoring target, the evaluation means 4 that leads to the risk of suicide or suicide of the monitoring target from the result derived by the analysis means 3, and the evaluation means 4 is a suicidal or suicidal act An intervening means 11 for intervening directly or indirectly with respect to the behavior to be monitored, and an information managing means 7 for managing communication with the monitoring device Y and managing information related to the communication Based on the output of the sensor unit A, the object of suppressing suicide is achieved as follows.

  The analysis means 3 uses a fast discrete Fourier transform (FFT) or the like for a signal received from the sensor unit A using the microwave Doppler sensor (the microwave sensor) 1 to perform heartbeat, respiration, body movement, blood pressure or sweating. (See, for example, Japanese Patent Application Laid-Open No. 2013-92512 or Japanese Patent Application Laid-Open No. 2002-71825), which are individually converted into biological data, the biological data alone or a combination of a plurality of biological data, or a postscript Based on the combination with environmental data, heartbeats that can occur in the facility, heartbeat status such as heartbeat stop or irregular heartbeat, respiratory status such as respiratory stop, hypopnea or hyperpnea, exercise state such as sitting, falling or lying down, calmness Various mental states such as excitement or tension, presence / absence states such as presence or absence Assign to each elephant, derive biological factors or life patterns from the contents, degree and combination of each event, time and time, and weight the risk of suicide or the possibility of performing a suicide act according to their degree The corresponding position or parameter is output (see, for example, FIG. 3).

The analyzing means 3 detects, for example, biological data such as heartbeat, breathing, body movement, blood pressure or sweating without taking a break 24 hours a day, every day, and sudden changes in biological data related to vital signs such as heartbeat and breathing or the like. When the biological data related to the body movement is not detected for a certain period of time, the risk of suicide or the possibility of performing the suicide action is weighted according to the biological factor derived from the biological data and the degree of the change. Output the corresponding parameters.
The determination of the abnormality of the biometric data and the absence of the monitoring target in the detection area is a process such as determining the absence when all of the biometric data is not detected in a short time (for example, within one minute). To cover.

By adopting the microwave Doppler sensor 1, even if it is hidden behind a futon or other obstacles, the appearance of the suspicious activity including the suicidal action by the monitored object as well as the presence or absence of the monitored object (the presence or absence state) In addition to the above movement (exercise state), various vital signs abnormalities (vital signs peculiar to suicidal behavior, etc.) due to the movement of the body surface (the heartbeat state) and the movement of the body surface due to the movement of the lungs (the respiratory state) ) Or emotional deterioration (said mental state).
In addition, if the terminal device X incorporating a PLC (power line carrier communication) is adopted, it can be easily installed as an electric lamp in an existing lighting device, and information detected by the microwave Doppler sensor 1 is superimposed on a commercial distribution line. Can be transmitted on the

  Further, the analysis means 3 detects the signal received from the sensor unit A using the image sensor 2 with a resolution that can guide at least the posture of the monitoring target, for example, the positional relationship of the extremities and the front and back of the body Is detected as an image (form), such as the motion state or the presence / absence state of the monitoring target in the monitoring area of the microwave Doppler sensor 1, and the content and degree of each event, and the time and time are detected. In addition to deriving biological factors or life patterns, corresponding levels or parameters that weight the risk of suicide or the likelihood of performing a suicide act are output according to their degree.

  In this way, the analysis means 3 is not able to be derived only by the biological data obtained from the microwave Doppler sensor 1, a biological factor or a life pattern, an event derived only from the biological data, a biological factor or a life When the pattern is uncertain, the image is used to derive an event, biological factor, or life pattern, and the event, biological factor, or life pattern derived from the biological data is collated, or they are comprehensively evaluated. Then, by outputting a corresponding parameter composed of an average value or a cumulative value of the parameters output from each result, a process for compensating the accuracy of the event, biological factor or life pattern derived from each sensor alone is performed.

  Further, the analysis means 3 converts the signal received from the sensor unit A using the environmental sensor into, for example, data as environmental data related to date / time, temperature, humidity, illuminance or odor numerical values or operation of home appliances, etc. From environmental data alone or a combination of multiple environmental data, sort out various events such as the environment in the facility (discomfort index, etc.), corruption or mold, and the environmental factors or lifestyle patterns from the contents and degree of each event, time and time, etc. According to the degree of the guidance, a corresponding position or parameter weighting the risk of suicide or the possibility of performing the suicide act is output (for example, see FIG. 4).

The database 5 includes the personal items to be monitored, the history of the monitoring target (history element), the past history of the monitoring target (medical history element), the stress factors related to the monitoring target, or the suicide propensity (current status) listed as items used for screening Reinforcement that contributes to the processing of the evaluation means 4 by systematizing individual elements such as elements) and general elements such as areas requiring attention (area elements), periods requiring attention and periods requiring attention (time elements), etc. It is recorded as a factor.
The date and time of the procedure in which an important decision regarding the monitoring target is made is registered in the database 5 as the danger period / danger time or the stress factor as soon as the decision is made, and the period before and after is set as a caution period.

The personal matters are information that can specify an address, name, age, occupation, telephone number, and the person.
The career is an educational history, a career history, a history of suicide attempts, or the like.
The past history is whether or not there is a history of use of narcotics or the like, and whether or not there is a psychiatric treatment history.
When these factors are applicable, the corresponding status or parameter that weights the risk of suicide or the possibility of performing the suicide action is output according to the content and degree of the factors.

Whether the suicide propensity is, for example, currently in an addictive state, expressing excessive shame, guilt, anxiety, etc. about living in the closed facility, or whether there is a strong despair or fear of the future Whether there are signs of depression such as crying, lack of emotion or lack of verbal expression, whether there is suicidal ideation, whether symptoms of mental illness are observed, whether inside or outside the facility There are things that can be a sign of suicide, such as whether or not there is an expression of not.
When these factors are applicable, the corresponding status or parameter that weights the risk of suicide or the possibility of performing the suicide action is output according to the content and degree of the factors.

A person who needs attention can be derived by comprehensively evaluating gender, age, marriage, etc. in addition to the personal items, personal history, past history, and suicide propensity.
The person who needs attention is fitted with the theory that, for example, men, young people (20 to 25 years old), unmarried, drug-related crimes or relatively minor crimes are high in the first offense, the individual elements or their A corresponding position or parameter may be output according to the degree of caution required from the combination.

  The area requiring attention in the facility is an area where the frequency of suicide in the facility is relatively high. For example, a private room or a shared toilet. For example, a suicide-prone area such as under a wash basin or under a window is set as a caution area, and if it stays for a certain period of time, depending on its length, a suitable position or parameter conceived for predicting or performing suicide is output. .

The caution period / time required is, for example, a period corresponding to the acute phase for persons with mental illness, and detention for persons with drug addiction exchanged with detention centers or detention centers. Immediately before and after important trials such as hearings and inspections, if you are a prison inmate, you will be given up in the facility, troubles between family members, unjustified judicial punishment (guilty and severe penalties) Before and after the decision is made.
The attention required time is assumed to be in the morning or at night when there are few people.
When these factors are applicable, the corresponding status or parameter that weights the risk of suicide or the possibility of performing the suicide action is output according to the content and degree of the factors.

The evaluation means 4 guides a person who has committed suicide or a person who is likely to commit suicide from the biological factor, the environmental factor, the reinforcement factor, the change in the life pattern, or a combination thereof.
For example, as described above, the bio-factor, the environmental factor, the reinforcement factor, and the change in the life pattern are set with appropriate statuses or parameters that weight the risk of suicide or the possibility of performing suicide. A threshold value is set for each of the accumulated values of the parameters, and the risk of suicide and the performance of the suicide action are determined by an evaluation method using the threshold value as a boundary.

  The intervention means 11 may involve the person who is housed in a closed facility to commit the suicide and perform the suicide act, and the intervention in the person's life is, for example, emergency call, alerting, prevention and manual update. Process in the form or request other institutions for such intervention.

  The emergency call is intended to improve the lifesaving rate by early treatment by capturing the presence or absence of events such as heartbeat, breathing, and body movement, and making an emergency call when detecting an emergency related thereto.

  The above alerts capture the amount of events (time, degree, etc.) or changes such as behavioral abnormalities such as life patterns such as hyperactivity, insomnia or day / night reversal, or the presence or absence of strange acts such as self-harm and screaming. It is intended to prevent suicide by making a notice (attention notice) to call attention when a situation to be detected is detected.

  In the prevention, changes in sleep quality, stress, or activity amount derived from a combination of events such as heartbeat, breathing, and body movement are quantified to capture those trends or estimate the future, and those values are a certain threshold value. If it exceeds, classify the risk level and report an intervention.

The manual update is based on the fact that the analysis means 3 automatically collects the emergency call, alerting and prevention, and the events that serve as the basis thereof into the database 5 and contributes to the implementation and improvement of mental care performed by the system. As data that follows the actual situation, it is used to update manuals and educational materials for people and systems, and to use them for future operations.
The intervention means 11 is, for example, an event, biological factor, environmental factor and life pattern led by the analysis means 3, a person who has performed a suicide act led by the evaluation means 4, or a person who is likely to commit suicide. A command to automatically save in the database 5 is output to the analysis means 3 or the evaluation means 4.

For example, the intervention unit 11 may include a reporting unit, a warning unit, and a reporting unit.
The reporting unit requests the information management unit 7 to report to the related organization to the monitoring device Y based on the determination by the evaluation unit 4.
The alarm means issues a predetermined alarm according to the determination result, or requests the information management means 7 to issue a predetermined alarm according to the determination result.
The notification means requests the information management means 7 to transmit the determination result and information that can be the cause and the basis to the monitoring device Y.

The intervention means 11 includes, as one of its functions, a deterring means 6 that generates a stimulus sufficient to cause the monitoring subject to give up suicide or to return to me from an extremely ungodly state.
The deterring means 6 is composed of a speaker, a lighting device, and the like, and generates a call or warning sound to discourage suicide for the monitoring target, operates a swirling light, or has a special pattern for a lighting device in the field. Controls that give dramatic changes in illuminance, such as blinking by.

The information management means 7 sends the analysis result of the analysis means 3, the evaluation result of the evaluation means 4 or the information stored in the database 5 to the monitoring device Y, and the information or command sent by the monitoring device Y Are registered in the database 5 following the command.
The latter contributes to enhancement of reinforcement factors stored in the database 5 and also contributes to intervention as manual update performed by the intervention means 11.

  In this example, the monitoring device Y notifies the monitoring staff in response to the communication means 8 for exchanging information with the terminal device X and an external organization, and the terminal device X for reporting the possibility of suicide and the execution of suicide. And a video management unit 10 that collects, visualizes, and records image data of an area in charge of the terminal device X from the terminal device X that has issued the notification.

The present invention is configured as described above, and although there has been no significant change in the 24-hour monitoring system by the conventional observers, much of the burden when one person is responsible for over a dozen monitor screens is reduced. A machine that can detect the fear or execution of suicide based on a certain standard will be in charge, and the risk of oversight can be greatly reduced.
As a result, the monitoring staff can monitor details that have not been taken care of until now, and contribute greatly to the lifesaving of the monitoring target by demonstrating the superior monitoring ability of the person more than ever.

A sensor unit, B control unit, X terminal device, Y monitoring device,
1 microwave sensor, 2 image sensor, 3 analysis means, 4 evaluation means,
5 database, 6 deterrence means, 7 information management means,
8 communication means, 9 alarm means, 10 video management means, 11 intervention means, 12 communication device,

Claims (3)

Consists of a sensor unit and a control unit installed in a closed facility,
The sensor unit includes a microwave sensor and an image sensor,
The control unit is an analysis means for deriving biometric data or events related to suicidality or suicidality from the output of the sensor unit;
A database for storing individual and general elements to be monitored for suicide performance;
Evaluation means for inducing suicide or suicidality of a monitoring target from the biological data or the event derived by the analysis means and the individual element and the general element stored in the database;
Suicide suppression system comprising a terminal device comprising   The suicide suppression system according to claim 1, further comprising a suppression unit that emits a light or voice stimulus to the monitoring target when the evaluation unit leads to the risk of suicide of the monitoring target or execution of the suicide act. The suicide suppression system according to claim 1, wherein the analysis unit derives an event including heartbeat, respiration, and body movement from an output of the sensor unit.

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