JP2009134403A - Scenario construction apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a novel scenario construction apparatus as a main object, and to provide a scenario construction apparatus enabling addition or change of a scenario appropriately as another object. <P>SOLUTION: A warning system 10 includes a server 12, to which a monitor device 22 is connected, and the action of a nurse to be watched is detected. When the nurse performs nursing work, a scenario indicating procedures about the nursing work is compared with the action of the nurse, and if they do not match, a series of action of the nurse is set in chronological order as an action sequence, which is stored in an event DB 30. A tentative scenario is created on the basis of a plurality of action sequences, and whether or not it resembles a scenario already registered in a scenario DB 26 is determined. If they resemble each other, the scenario is changed so that different portions of the scenario and the tentative scenario will be integrated. If they do not resemble each other, the tentative scenario is set as a new scenario and is registered in the scenario DB 26. By appropriately adding or changing a scenario, the scenario can be reconstructed. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a scenario construction device, and more particularly to, for example, a scenario construction device that adds or changes a scenario for an operator's business.

An example of this type of scenario construction device is disclosed in Patent Document 1. According to the warning device of Patent Document 1, a correct action procedure (scenario) of nursing work is recorded in the database in advance, and the action of the nurse performing the nursing work is detected, and the nursing operation is detected from the action and the scenario. Determine whether the purpose of the business can be obtained. When the purpose of the nursing service cannot be obtained, a scenario violation alarm is given to the nurse. When a nursing service that does not correspond to any scenario recorded in the database in advance is detected, a series of actions of the nurse performing the nursing service is registered in the database as a new scenario.
JP 2007-34738 A [G08B 21/02, G06Q 50/00, G06N 5/04, A61G 12/00]

  However, in this background art, when a nurse's action does not correspond to any of the scenarios recorded in the database, the series of actions is registered in the database as a new scenario. A new scenario is also registered when the behavior and the scenario registered in advance do not match. For this reason, even if it is the same nursing work, even if there are multiple different scenarios, or even if it is a similar nursing work, each scenario is registered, resulting in an unnecessarily increasing scenario is doing. Therefore, the processing for determining whether or not to warn becomes enormous. Moreover, since only the scenario is added, it is not possible to review such as changing an already existing scenario.

  Therefore, a main object of the present invention is to provide a novel scenario construction device.

  Another object of the present invention is to provide a scenario construction device capable of appropriately adding or changing a scenario.

  The present invention employs the following configuration in order to solve the above problems. The reference numerals in parentheses, supplementary explanations, and the like indicate correspondence relationships with embodiments described later to help understanding of the present invention, and do not limit the present invention in any way.

  A first invention is a scenario construction device for constructing a scenario indicating an action procedure for a worker's business, and includes a created scenario storage means for storing a created scenario created in advance for each business, Action detection means to detect, a comparison means for comparing a series of actions detected by the action detection means with a created scenario, and a series of actions arranged in time series when the comparison result of the comparison means shows a mismatch Action sequence storage means for storing as an action sequence storage means, out of a plurality of action sequences stored in the action sequence storage means, the last action is an extraction means for extracting the same action sequence, the action sequence extracted by the extraction means, and the last Extracted by the first grouping means and extraction means for grouping action sequences in which all actions before the action are the same including their order into the first group Among the action sequences that are motion sequences and are not grouped into the first group by the first grouping means, the same behavior group as a part of the behavior sequences included in the behavior sequence grouped into the first group. A first sequence determining means for determining whether there is an action sequence arranged in the same order, and an action sequence determined by the first order determining means that the same action group is arranged in the same order is added to the first group. Among the action sequences extracted by the adding means and the extracting means and not grouped into the first group by the first grouping means, one of the action sequences included in the action group grouped into the first group Second action determining means for determining whether or not there is an action sequence in which the same action group is arranged in a different order, and the same action group is arranged in a different order by the second order determining means The second grouping means for grouping the determined action sequence into a second group different from the first group, the first order determining means determines that the same action group is not arranged in the same order, and the second order determination A third grouping means, a first group, a second group, and a third grouping means for grouping action sequences that are determined not to be arranged in different orders by the means into a third group different from the first group and the second group; A temporary scenario creating means for creating a temporary scenario based on an action sequence grouped in the third group, a similarity determining means for determining whether the temporary scenario and the created scenario are similar, and a similarity determining means When it is determined that the created scenario is not similar to the created scenario, the temporary scenario is stored in the created scenario storage means as a new scenario. It is a scenario construction apparatus provided with the scenario registration means to register.

  In the first invention, the scenario construction device (12) constructs a scenario indicating an action procedure for the work of the worker. The scenario storage means (26) stores a created scenario created in advance for each business. For example, the created scenario is created based on the work manual and registered (stored) in the scenario storage means. The behavior detection means (12, 18, 20, 22, 28, S5, S9) detects the behavior of the worker when the worker performs a job. The comparison means (12, S9) compares a series of actions of the worker with the created scenario. The action sequence storage means (12, 30, S17, S19, S21) stores the series of actions as an action sequence arranged in time series when the series of actions of the worker and the created scenario do not match. That is, examples of action sequences that do not match the registered scenario are collected. The extraction means (12, S73) extracts (extracts) a plurality of action sequences having the same last action (event) from the action string storage means. The first grouping means (12, S83) groups the action sequences that are the extracted action sequences and all the actions before the last action are the same including their order into the first group. . That is, action sequences in which the content of each action and their appearance order are the same are classified into the first group. The first order determination means (12, S95) is an action sequence extracted by the extraction means, and is an action sequence grouped in the first group among the action sequences not grouped in the first group. It is determined whether there is an action sequence in which some of the included action groups (a set of two or more actions; the same applies hereinafter) and the same action group are arranged in the same order. The adding means (12, S97) adds the action sequence determined by the first order determining means that the same action group is arranged in the same order to the first group. The second order determination means (12, S99) is an action sequence extracted by the extraction means and is not grouped in the first group, but is an action grouped in the first group. It is determined whether there is an action sequence in which a part of the action group included in the column and the same action group are arranged in a different order. The second grouping means (12, S101) groups the action groups determined by the second order determining means that the same action groups are arranged in different orders into a second group different from the first group. Furthermore, the third grouping means (12, S107) determines that the same action groups are not arranged in the same order by the first order determining means, and the same action groups are arranged in a different order by the second order determining means. The action sequence determined not to be different from the first group and the second group. That is, the remaining action sequences that are not classified into the first group and the second group are classified into the third group. The temporary scenario creating means (12, S113) creates a temporary scenario based on the action sequence grouped (classified) into the first group, the second group, and the third group. The similarity determination means (12, S115) determines whether the temporary scenario and the created scenario are similar. For example, when a part of a scenario (for example, one event) is different, it is determined that the temporary scenario and the created scenario are similar. The determination of whether or not they are similar is executed for all the created scenarios. The scenario registration means (12, S117) registers the temporary scenario as a new scenario in the created scenario storage means when the temporary scenario and the created scenario are not similar ("NO" in S115).

  According to the first invention, an action sequence that does not match a created scenario is stored, a provisional scenario is created from a plurality of action sequences, and a new scenario is created when the created provisional scenario is not similar to the created scenario. Since it is registered, scenarios can be added appropriately.

  The second invention is dependent on the first invention, and when the similarity determination unit determines that the temporary scenario and the created scenario are similar, the new scenario includes the temporary scenario and the created scenario. Scenario change means for changing the scenario is further provided.

  In the second invention, when the temporary scenario and the created scenario are similar (“YES” in S121), the scenario changing means (12, S127) applies the new scenario including the temporary scenario and the created scenario. Change a created scenario. For example, the names (nouns) of different objects (drugs and instruments) in the provisional scenario and the created scenario are generalized, and actions (verbs) having the same meaning are generalized (unified).

  According to the second invention, based on the temporary scenario and the created scenario, the created scenario is changed to a common new scenario including the semantic contents of the similar scenarios, so that the scenario can be changed appropriately. it can.

  The third invention is dependent on the first invention and the second invention, and the similarity determination means determines that the temporary scenario and the created scenario are different depending on the number of actions included in the provisional scenario and the number of actions of the created scenario. Determine if the scenario is similar.

  In the third invention, the similarity determination means determines whether the temporary scenario and the created scenario are similar according to a different number of actions (events) included in the temporary scenario and events of the created scenario. To do. For example, when one event is different (including a case where it is missing), it is determined that the temporary scenario and the created scenario are similar. However, when the scenario is long, even if two or more events are different, it may be determined that they are similar. That is, the number of differences in similarity determination may be changed as appropriate according to the length of the scenario.

  According to the third aspect, since it is determined whether the temporary scenario and the created scenario are similar based on the number of different events, the determination is easy.

  A fourth invention is dependent on any one of the first to third inventions, and a first action group in which both the order of execution and the number of times of execution are fixed based on the action sequence grouped in the first group And creating a second action group that can change the order of execution based on the action sequence grouped in the second group, and executing the action group based on the action sequence grouped in the third group. Action group creating means for creating a third action group that can change both the order and the number of times of execution is further provided, and the temporary scenario creating means arranges the first action group, the second action group, and the third action group in the order of appearance. Create a scenario.

  In the fourth invention, the action group creating means (12, S109) creates the first action group in which both the order of execution and the number of times of execution are fixed based on the action sequence grouped in the first group. And creating a second action group that can change the order of execution based on the action sequence grouped in the second group, and executing the order based on the action sequence grouped in the third group and A third action group that can change both the number of times of execution is created. The temporary scenario creating means creates a temporary scenario by arranging the first action group, the second action group, and the third action group in the order of appearance (in time series).

  According to the fourth invention, a provisional scenario can be created simply by creating an action group according to a predetermined rule on the basis of an action sequence grouped into each group and arranging them in the order of appearance, so that the creation is simple. .

  A fifth invention is a scenario construction device for constructing a scenario indicating an action procedure for a worker's business, and includes a created scenario storage means for storing a created scenario created in advance for each business, Action detection means to detect, a comparison means for comparing a series of actions detected by the action detection means with a created scenario, and a series of actions arranged in time series when the comparison result of the comparison means shows a mismatch Action sequence storage means for storing as an action sequence storage means, out of a plurality of action sequences stored in the action sequence storage means, the last action is an extraction means for extracting the same action sequence, the action sequence extracted by the extraction means, and the last Extracted by the first grouping means and extraction means for grouping action sequences in which all actions before the action are the same including their order into the first group Among the action sequences that are motion sequences and are not grouped into the first group by the first grouping means, the same behavior group as a part of the behavior sequences included in the behavior sequence grouped into the first group. A first sequence determining means for determining whether there is an action sequence arranged in the same order, and an action sequence determined by the first order determining means that the same action group is arranged in the same order is added to the first group. Among the action sequences extracted by the adding means and the extracting means and not grouped into the first group by the first grouping means, one of the action sequences included in the action group grouped into the first group Second action determining means for determining whether or not there is an action sequence in which the same action group is arranged in a different order, and the same action group is arranged in a different order by the second order determining means The second grouping means for grouping the determined action sequence into a second group different from the first group, the first order determining means determines that the same action group is not arranged in the same order, and the second order determination A third grouping means, a first group, a second group, and a third grouping means for grouping action sequences that are determined not to be arranged in different orders by the means into a third group different from the first group and the second group; A temporary scenario creating means for creating a temporary scenario based on an action sequence grouped in the third group, a similarity determining means for determining whether the temporary scenario and the created scenario are similar, and a similarity determining means When it is determined that the created scenario is similar to the created scenario, the new scenario including the temporary scenario and the created scenario It is a scenario construction device provided with a scenario changing means for changing the created scenario.

  The fifth invention is the same as the first invention except that when the temporary scenario and the created scenario are similar, the created scenario is changed to a new scenario including the temporary scenario and the created scenario. Because of this, redundant explanation is omitted.

  Also in the fifth invention, the scenario can be changed appropriately as in the second invention.

  A sixth invention is a scenario construction device for constructing a scenario indicating an action procedure for a worker's business, a created scenario storage means for storing a created scenario created in advance for each business, a series of worker's series Action sequence storage means for storing a series of actions that do not match a created scenario as a behavior sequence arranged in time series, and the last action is the same among a plurality of action sequences stored in the action sequence storage means Extracting means for extracting action sequences, action sequences extracted by the extracting means, and all action sequences before the last action including their order are grouped into the first group Among the action sequences extracted by the first grouping means and the extracting means and not grouped into the first group by the first grouping means, the first The same action by the first order determining means and the first order determining means for determining whether or not there is an action sequence in which the same action group as the partial action group included in the action sequence grouped in the loop is arranged in the same order Addition means for adding action sequences determined to be grouped in the same order to the first group, action sequences extracted by the extraction means, grouped into the first group by the first grouping means Second order determining means for determining whether there is an action sequence in which the same behavior group as the partial behavior group included in the behavior sequence grouped in the first group is arranged in a different order A second grouping means for grouping the action sequence determined by the second order determining means into the second group different from the first group, in which the same action group is determined to be arranged in a different order; The action sequence determined by the means that the same action group is not arranged in the same order and the action order determined by the second order determination means is not arranged in a different order is different from the first group and the second group 3rd grouping means for grouping into 3rd group, 1st group, 2nd group, provisional scenario creating means for creating temporary scenario based on action sequence grouped into 3rd group, provisional scenario and created scenario A scenario that registers the temporary scenario as a new scenario in the created scenario storage means when it is determined by the similarity determining means that determines whether or not are similar to each other and the similarity determining means determines that the temporary scenario is not similar to the created scenario. It is a scenario construction apparatus provided with a registration means.

  Since the sixth invention is the same as the first invention except that a provisional scenario created using a behavior sequence stored in advance in the behavior sequence storage means is registered as a new scenario, a duplicate description is omitted.

  Also in the sixth invention, a scenario can be appropriately added as in the first invention.

  A seventh invention is a scenario construction device for constructing a scenario indicating an action procedure for a worker's business, a created scenario storage means for storing a created scenario created in advance for each business, a series of worker's series Action sequence storage means for storing a series of actions that do not match a created scenario as a behavior sequence arranged in time series, and the last action is the same among a plurality of action sequences stored in the action sequence storage means Extracting means for extracting action sequences, action sequences extracted by the extracting means, and all action sequences before the last action including their order are grouped into the first group Among the action sequences extracted by the first grouping means and the extracting means and not grouped into the first group by the first grouping means, the first The same action by the first order determining means and the first order determining means for determining whether or not there is an action sequence in which the same action group as the partial action group included in the action sequence grouped in the loop is arranged in the same order Addition means for adding action sequences determined to be grouped in the same order to the first group, action sequences extracted by the extraction means, grouped into the first group by the first grouping means Second order determining means for determining whether there is an action sequence in which the same behavior group as the partial behavior group included in the behavior sequence grouped in the first group is arranged in a different order A second grouping means for grouping the action sequence determined by the second order determining means into the second group different from the first group, in which the same action group is determined to be arranged in a different order; The action sequence determined by the means that the same action group is not arranged in the same order and the action order determined by the second order determination means is not arranged in a different order is different from the first group and the second group 3rd grouping means for grouping into 3rd group, 1st group, 2nd group, provisional scenario creating means for creating temporary scenario based on action sequence grouped into 3rd group, provisional scenario and created scenario When the similarity determination means that determines whether or not the scenario is similar, and the similarity determination means determine that the provisional scenario and the created scenario are similar, the creation is performed in a new scenario that includes the provisional scenario and the created scenario. This is a scenario construction device comprising scenario changing means for changing a completed scenario.

  Since the seventh invention is the same as the fifth invention except that the created scenario is changed using the temporary scenario created using the action sequence of the action sequence storage means constructed in advance, A duplicate description is omitted.

  In the seventh invention, as in the fifth invention, the scenario can be changed appropriately.

  According to the present invention, when a nurse's action and a scenario registered in advance do not match, a series of actions of the nurse is recorded as an action sequence, and the plurality of recorded action sequences are recorded. Since a temporary scenario is created and the temporary scenario is registered as a new scenario, the scenario can be added appropriately.

  In addition, since the created scenario is changed to a new scenario including the provisional scenario and the created scenario, the scenario can be changed appropriately.

  The above object, other objects, features and advantages of the present invention will become more apparent from the following detailed description of embodiments with reference to the drawings.

  Referring to FIG. 1, a warning system 10 according to an embodiment of the present invention is applied to a hospital, for example, and includes at least a server 12 that functions as a warning device and a scenario construction device. The server 12 is connected to a plurality of nurse terminals (hereinafter simply referred to as “terminals”) 16, a plurality of passage sensors 18, and a plurality of repeaters 20 via a wired or wireless communication line (network) 14. The The terminal 16 is a portable terminal such as a PDA or PHS, and is assigned to each nurse. The passage sensor 18 is a light receiving device that receives infrared rays, and is disposed at the entrance and exit of each room such as a corridor in a ward that accommodates inpatients, an examination room, an operating room, a toilet, a staircase, a hospital room, and a nurse's office. The The repeater 20 is a portable device such as a PDA or a portable computer, and is assigned to each nurse.

  FIG. 2 is a block diagram showing a specific configuration of the server 12. The monitor device 22 is connected to the server 12 although not shown in FIG. The monitor device 22 includes, for example, sensors such as a plurality of objective sensors, a plurality of sound collecting microphones (sound sensors), and a plurality of video cameras (image sensors). Although not shown in the drawings, in this embodiment, the plurality of objective sensors include a thermometer, a sphygmomanometer, a syringe, a drip syringe (injector), a blood collection test tube, a medical container such as a urinalysis cup. It is installed in the takeout part (entrance / exit) of the (hangar), the key of the storage box (hangar), the nurse call terminal, etc., and detects the presence or absence of use (removal) of those medical devices. However, identification information such as electronic tag information (RF-ID) or barcode is added to these medical instruments, and the presence or absence of use is detected by reading the tag information or barcode. May be. The plurality of sound collecting microphones are installed in a ward that accommodates inpatients, and are installed in a corridor and a hospital room (bed or in the vicinity thereof) to collect ambient sounds (mainly nurses' voices in this embodiment). To do. Furthermore, as with the microphone, the multiple video cameras are installed in the corridors and hospital rooms (beds or their vicinity) in hospital wards where inpatients are accommodated, as well as in nurse's offices, etc. Take a picture of the nurse performing the action. Here, nursing work is a general term for work to be performed by a nurse such as inquiry, temperature measurement, pressure detection, injection, medication, drip injection, and discharge guidance. However, in this embodiment, when simply referred to as “nursing work”, any one work is shown.

  Further, as shown in FIG. 2, five databases (DB) are connected to the server 12. Specifically, an electronic medical record DB 24, a scenario DB 26, a knowledge DB 28, an event DB 30 and a group DB 32 are connected to the server 12.

  The electronic medical record DB 24 records an electronic medical record about a patient currently hospitalized or being treated. Although illustration is omitted, this electronic medical chart is obtained by extracting necessary items from the contents of the medical chart described by a doctor or the like and adding necessary items to electronic data. For example, the electronic medical record includes the patient name, the name of the nurse in charge (or identification information), gender, disease name, medical condition, prescription (what kind of injection or infusion, prescription and prescription time), rehabilitation The data (text data) of information such as the situation, hospitalization calendar, and precautions for the patient is described.

In the scenario DB 26, correct action procedures (scenarios) for nursing work are described. However, information on the equipment to be used and information on how to use it are also included. Here, the scenario s _i is a set of actions or actions (events) in nursing work created with reference to the nurse's work manual, and is arranged according to basic procedures (time series). However, as will be described later, the scenario s _i is newly added or changed. The scenario s _i is expressed by Equation 1. However, in Equation 1, “in chronological order” means that not all events e _i need to be executed according to the procedure (time series), but some events e _i that need to be executed partially according to the time series. Is included.

[Equation 1]

For example, each of the scenarios s _i, sh _{, and} s _a is composed of a plurality of events, and is represented by Equation 2.

[Equation 2]
s _i = {e _i1 = prepare syringe, e _i2 = prepare distilled water and diamox, e _i3 = dissolve diamox, e _i4 = suction diamox, e _i5 = wait , E _i6 = injection}
s _h = {e _h1 = power supply of various monitors, e _h2 = infusion set, e _h3 = preparation of necessary items, e _h4 = suction set, e _h5 = waist / cannabis preparation, e _h6 = light・ Check head position}
s _a = {e _a1 = received by ward nurse, e _a2 = push ID card to cost table, e _a3 = report blood pressure of patient to anesthesiologist, e _a4 = chestrate on Schaukasten, e _a5 = mounting of the _{monitors,, e a6} = vascular access of _{assistance, e a7} = waist KataAsa assistance _{of, e a8} = induction of anesthesia _{care, e a9} = urinary-deep body temperature monitor the mounting _{of, e a10} = electric knife E _a11 = Take position, e _a12 = L frame, Mayo stand, installation of light, e _a13 = Assistance of gown technique, e _a14 = Isodine, serving raw food on the instrument table, e _a15 = Electricity Female, suction cord connection}
However, the scenario s _i (the same applies to the other scenarios s _{h and} s _a ) includes a plurality of scenarios s _in (hereinafter sometimes referred to as “partial scenarios” for convenience of explanation). Can be represented by a set of Although detailed explanation is omitted, each partial scenario s _ij is represented by a set (event group) of two or more events (e). In Equation 3, O _i is a final goal when the scenario s _i is executed, and O _ij is a subordinate (auxiliary) goal when the partial scenario s _ih is executed. However, the final goal (final goal) is obtained by the nurse performing the nursing work according to the scenario s _i . In other words, the final goal is the correct result of nursing action. In addition, the subordinate goal (subordinate goal) is obtained by executing a part of nursing work according to the partial scenario s _ih .

[Equation 3]
s _i = {S _i1 , S _i2 ,..., S _in ; O _i }
s _ij = {e _j1 , e _j2 ,..., e _jk ; O _ij }
However, for example, a certain partial scenario s _il (c) = {e _l1 , e _l2 ,..., E _lm ; O _il } needs to be executed in time series, but another partial scenario s _ip (n) = {E _p1 , e _p2 ,..., E _pq ; O _ip } need not be executed in time series. For example, in the example shown in _Equation 2, the event e _i4 (sucking the dissolved diamox) needs to be executed before the event e _i6 (injecting).

  Although illustration is omitted, information about whether or not a partial scenario needs to be executed in time series is identified by labeling each partial scenario. However, information on whether or not the scenario is a partial scenario may be stored separately in association with each partial scenario.

The knowledge DB 28 stores data on axioms and hypotheses. In this example, an axiom is an event, action, or element that inevitably yields an ideal state of prescription or treatment for that patient and the causality of that ideal state, and more generally, what It is such a relationship (general fact) that does not break the relationship. The hypothesis is a variable means such as events, actions, elements, etc. that can be observed by monitoring means (in this embodiment, passage sensor 18, repeater 20, monitor device 22) or RFID (tag information), etc. An event (event) that may not exist. The knowledge DB 28 also stores knowledge about nursing work. Specifically, for each nursing service, the time change of the acceleration data when the nursing service is performed is acquired in advance and stored as dictionary data. However, since the procedures and habits may be different for each nurse, dictionary data may be stored for each nurse. Furthermore, the knowledge DB 28, thesaurus _{G x} are stored. The Thesaurus G _x is one event group summarizing similar terms. In the synonym dictionary G _x , a reverse lookup index is assigned so that it can be retrieved (searched) from the reverse. In other words, it is to be able to know the thesaurus G _x corresponding from similar terms (words or phrases).

  The event DB 30 temporarily stores a sequence (event sequence) in which a series of actions (events) of nurses different from the scenarios registered in the scenario DB 26 are arranged in time series. In this embodiment, as will be described later, by executing learning processing using a plurality of event sequences, a new scenario is registered (added) in the scenario DB 26 or a scenario that has already been registered in the scenario DB 26 (created). Or added scenarios) are changed.

  The group DB 32 temporarily stores grouped scenarios and event groups in the learning process. In this embodiment, as will be described later, three groups (group A, group B, and group C) are created, and an event sequence is grouped into each group. Further, based on the event sequence in each group, An event group is created and stored. The group and event group will be described in detail later.

  The server 12 has a clock circuit 12a therein. The clock circuit 12a measures the date and time. In this embodiment, the server 12 refers to the clock circuit 12a to determine whether or not it is the start time (date and time) of the work described in the electronic medical record.

  FIG. 3 is a block diagram showing an electrical configuration of the terminal 16. Referring to FIG. 3, terminal 16 includes a CPU 40, and memory 42, key switch 44, LCD driver 46, motor driver 50, wireless LAN 54 and amplifier 56 are connected to CPU 40. An LCD 48 is connected to the LCD driver 46, a vibration motor 52 is connected to the motor driver 50, and a speaker 58 is connected to the amplifier 56.

  As described above, when PHS is used as the terminal 16, a call (telephone) function is further added.

  The CPU 40 governs overall control of the terminal 16. The memory 42 includes a ROM and a RAM. In this embodiment, the terminal 16 mainly functions as an information presentation device, and the ROM stores a program for information presentation (information presentation program) and data necessary for information presentation (image data, sound data). ing. The RAM is used as a storage area, a work area, and a buffer area for the CPU 40.

  In this embodiment, programs and data necessary for presenting information are stored in the ROM, but may be downloaded from the server 12. In this way, the usage capacity of the ROM can be reduced.

  The key switch 44 is a variety of keys or buttons (switches) such as a cursor key such as a numeric keypad and a cross key and a selection key, and is used to input instructions from the nurse. The LCD driver 46 is a driving device for the LCD 48, and displays an image on the LCD 48 in accordance with an instruction from the CPU 40. Although illustration is omitted, the LCD 48 displays a screen for information such as messages related to nursing work. The motor driver 50 is a driving device for the vibration motor 52, and drives the vibration motor 52 in accordance with an instruction from the CPU 40. For example, when information is presented from the server 12, by driving the vibration motor 52, the terminal 16 is vibrated to notify the user of that fact. Alternatively, notification sound (sound, music) may be output from a speaker to notify the user that information is being presented. At this time, sound data (sound, sound or music) from the CPU 40 is converted into an analog sound (sound) signal, amplified by the amplifier 56, and output from the speaker 58. However, you may make it notify with both a vibration and a sound (music).

  The wireless LAN 54 transmits an instruction input (command) input by the nurse using the key switch 44 to the server 12 via the network 14 in accordance with an instruction from the CPU 40. Although detailed description is omitted, since the server 12 manages the wireless LAN MAC address of the terminal 16 in association with the nurse ID, the user (nurse) of the terminal 16 that is communicating with the server 12 Can be recognized on the side. However, the nurse ID may be stored in the memory 42 (ROM), and the nurse ID may be transmitted to the server 12 together with the command. In addition, the wireless LAN 54 receives information (information related to screen display) transmitted from the server 12 and gives it to the CPU 40.

  As shown in FIG. 4, the passage sensor 18 includes a first light receiving module 72 and a second light receiving module 74, and the first light receiving module 72 and the second light receiving module 74 are upper portions of the gate and are mounted on different side surfaces. Is done. Further, in the case 180 placed on the gate, components (CPU 70, RAM 76, wireless LAN 78: see FIG. 6) other than the light receiving modules (72, 74) of the passage sensor 18 are incorporated. However, the gates are only shown for easy understanding. Usually, the entrances and exits of rooms such as nurse's offices, examination rooms, hospital rooms, corridors and corridors (crossroads, T-junctions, etc.), corridors The passage sensor 18 is installed at a key point such as a connecting portion between the stairs and the stairs. If necessary, it may be installed at the gate of the elevator.

  Moreover, as shown in FIG. 5, the transmitter 110 which transmits an infrared signal is mounted | worn with each nurse's head. For example, the transmitter 110 is fixed to a nurse cap or hair using a fixing device such as a clip. The infrared signal transmitted from the transmitter 110 is, for example, an 8-bit fixed pattern (nurse ID).

  FIG. 6 is a block diagram showing an electrical configuration of the passage sensor 18. With reference to FIG. 6, the passage sensor 18 includes a CPU 70, and a first light receiving module 72, a second light receiving module 74, a RAM 76, and a wireless LAN 78 are connected to the CPU 70. Each of the light receiving modules (72, 74, etc.) of each passing sensor 18 is assigned unique identification information (light receiving module ID). Each light receiving module (72, 74, etc.) detects an infrared signal from the transmitter 110 (see FIG. 5). Here, the infrared signal transmitted from the transmitter 110 is an 8-bit fixed pattern (nurse ID) as described above. For example, when receiving the nurse ID, the light receiving module (72, 74) gives the received nurse ID to the CPU. The CPU 70 adds the light receiving module ID of the light receiving module (72, 74) that has received the nurse ID to the nurse ID and stores (temporarily stores) it in the RAM 76, and then, via the wireless LAN 78 and the network 14, Send to server 12.

  When the server 12 receives the nurse ID to which the light receiving module ID is added, the server 12 detects the location corresponding to the received light receiving module ID as the current position of the nurse indicated by the nurse ID.

  In this embodiment, in order to reduce the processing load on the terminal 16 and save the capacity of the memory 42, the current position of the nurse is specified on the server 12 side. The light receiving module ID and the nurse ID may be transmitted to the terminal 16 through the terminal 16 so that the terminal 16 calculates the current position of the nurse.

  FIG. 7 is a block diagram showing an electrical configuration of the repeater 20. Referring to FIG. 7, repeater 20 includes a CPU 90. A memory 92, an encoder 94, a non-contact sensor 98, an acceleration sensor 100, and a wireless LAN 102 are connected to the CPU 90. The memory 92 functions as a work memory or a buffer memory and is used by the CPU 90. A pin microphone 96 is connected to the encoder 94, and the encoder 94 modulates an audio signal input from the pin microphone 96 into compressed audio data such as MP3 (hereinafter simply referred to as “audio data”) and inputs the result to the CPU 90. Thus, the audio signal is compression-modulated in order to reduce the amount of use of the memory 92 and to reduce the amount of data transmitted via the wireless LAN 102, as will be described later. is there. For example, the nurse inputs the contents of nursing work to be started or ended through voice through the pin microphone 96. Therefore, the server 12 can know the nursing work started, effective, or ended by the nurse by analyzing the voice.

  In FIG. 7, for the sake of simplicity, a plurality of acceleration sensors 100a, 100b, 100c, and 100d are comprehensively shown as the acceleration sensor 100 (see FIG. 5).

  Here, as can be seen with reference to FIG. 5, the terminal 16, the repeater 20, and the transmitter 110 that transmits infrared rays are attached to each worker (nurse). As shown in FIG. 5, the terminal 16 is attached to the wrist of the nurse. Although illustration is omitted, it is mounted using a fixing device such as a band so that the wristwatch can be mounted so that the LCD 48 of the terminal 16 can be seen.

  In the repeater 20, circuit components (see FIG. 7) other than the pin microphone 96, the non-contact sensor 98, and the acceleration sensor 100 (100a, 100b, 100c, 100d) are accommodated in the box 200, and the box 200 is the waist of the nurse. Attached to (belt part).

  As shown in FIG. 5, the pin microphone 96 is attached near the neck of a nurse's clothes (white robe). Further, the non-contact sensor 98 is housed in a pen-type case so as to be inserted into the breast pocket of the nurse's lab coat. However, in the drawings, a pen-shaped case is shown outside the breast pocket for easy understanding.

  Further, the acceleration sensor 100 is attached to the nurse's hands (both arms), chest and waist. In this embodiment, the acceleration sensor 100a is attached to the right arm, the acceleration sensor 100b is attached to the left arm, the acceleration sensor 100c is attached to the chest, and the acceleration sensor 100d is attached to the waist. However, in FIG. 5, each acceleration sensor 100 is illustrated outside the lab coat for easy understanding, but each acceleration sensor 100 is actually used by using an appropriate fixing device such as a rubber band. It is fixed to the arm etc. inside the lab coat.

  Although not shown in FIG. 5, the non-contact sensor 98 and the acceleration sensor 100 are connected to the CPU 90 in the box 200 using connection lines, and the pin microphone 96 is electrically connected to the encoder 94 in the box 200 using connection lines. Connected. However, you may make it connect by short-distance radio | wireless like Bluetooth, without using a connection line. That is, it is only necessary to be electrically connected.

  The pin microphone 96 used in this embodiment has directivity. This is to protect the patient's privacy by detecting only the voice of the nurse wearing the pin microphone 96.

  A pyroelectric sensor can be used as the non-contact sensor 98, and the CPU 90 turns on / off the pin microphone 96 in accordance with an input from the non-contact sensor 98. In this embodiment, when the nurse raises and lowers his / her hand twice in front of the non-contact sensor 98, that is, the pyroelectric sensor, the detection signal is input to the CPU 90. In response, the CPU 90 turns on the pin microphone 96, Thereafter, when the nurse raises and lowers his / her hand twice in front of the pyroelectric sensor, the pin microphone 96 is turned off. However, the CPU 90 is configured to turn off the pin microphone 96 even when a predetermined time (10 seconds) has elapsed without depending on the operation of the nurse.

  The acceleration sensor 100 is, for example, a multi-axis (3-axis) acceleration sensor, has a sampling frequency of 200 Hz, and can measure acceleration up to ± 3 G (G is gravity). In the repeater 20, acceleration data (acceleration data) detected by the acceleration sensor 100 is supplied to the CPU 90. The CPU 90 stores (temporarily stores) the acceleration data from the acceleration sensor 100 in the memory 92, and the acceleration data for the predetermined time is transmitted to the server via the wireless LAN 102 and the network 14 every predetermined time (for example, 10 seconds). 12 to send. As described above, the knowledge DB 28 stores in advance the time change of acceleration data when the nursing work is executed as dictionary data, so that it is being executed by comparing it with the acceleration data transmitted from the repeater 20. The contents of nursing work can be specified. For example, nursing work can be specified by comparing the dictionary data with the acceleration data from the repeater 20 by a known DP matching method.

  Instead of the acceleration sensor 100, another sensor such as a gyro sensor, an illuminance sensor, or a temperature sensor can be used. When another sensor is used, the output of the other sensor is transmitted to the server 12.

  As described above, the server 12 can know the current position (location) of the nurse based on the output from the passage sensor 18. In addition, the appliance used by the nurse can be known from the output of the monitor device 22 (objective sensor). Furthermore, it is possible to know the nursing work to be performed by the nurse based on the output of the monitor device 22 (output of the sound collecting microphone) and the voice input through the pin microphone 96. Furthermore, the action of the nurse is detected by analyzing the captured video (image data, video data) of the monitor device 22 (video camera) or comparing the acceleration data from the repeater 20 with dictionary data ( Specific). For example, if the detection results of such monitoring means (the server 12, the passage sensor 18, the repeater 20, and the monitor device 22) are combined, the behavior of the nurse can be detected relatively accurately. The same applies hereinafter.

  In addition, inference as to whether or not the nurse's action achieves the target is performed according to Equation 4. However, the background knowledge F includes an axiom included in the knowledge DB 28.

[Equation 4]

  However, ∪ means logical OR.

If the final goal O is considered as a subset of the sub-goal O _j , it is possible to infer according to Equation 5.

[Equation 5]

Here, when the inference result can obtain the sub-target O _j , the following partial scenario is inferred. However, if the sub-target O _j matches the final target O, it is determined that the nursing work has been completed.

On the other hand, if the inference result fails to obtain the sub-target O _j , a warning is given that the nursing service violates the scenario in any of the following cases. This is to prevent medical accidents and medical errors from occurring in advance. Specifically, if the inference result cannot obtain the sub-target O _j , it is determined whether or not the nurse has shifted to another nursing service. Here, when the nurse's action cannot return or reach the event to be returned or to proceed, it is determined that the nurse has shifted to another nursing service.

  If the nurse has not shifted to another nursing service, it is determined whether or not the current nursing service is to be terminated. For example, when a nurse performs an event that has nothing to do with the current nursing work, or skips an intermediate event and tries to execute the last event (for example, try not to melt Diamox and try to inject). , It is determined that the current nursing work is about to be terminated.

  Further, when the nurse shifts to another nursing service, it is determined whether or not to return to the original nursing service (the above-mentioned current nursing service) after finishing the other nursing service. Whether or not another nursing operation has been completed is determined by whether or not the last event included in the scenario for the other nursing operation has been executed. Whether or not the operation has returned to the original nursing service is determined by whether or not the action of the nurse matches an event that is included in the scenario corresponding to the original nursing service and should be executed.

  If the current nursing service is to be terminated midway, or if another nursing service is terminated and the original nursing service is not returned, the correct final goal of the scenario for the nursing service cannot be obtained. That is, since it may cause inconveniences such as medical accidents as described above, a warning is given to the nurse that the scenario is violated.

  It is to be noted that when a nurse performs a certain nursing service, it is a daily routine to be asked for another nursing service, and a warning is not issued simply by moving to another nursing service. This is to prevent the occurrence of warnings and give a warning only when it is really necessary to cause a medical accident or a medical error, so that the function of the warning system 10 can be fully exerted.

  In this embodiment, warning is given only to the focused nurse, but warnings are also given to other nurses and teachers in the vicinity of the nurse so as to ensure medical accidents. You may make it prevent.

  Specifically, the server 12 executes the entire process according to the flowchart shown in FIG. However, the entire process shown in FIG. 8 is executed at regular time intervals (for example, 15 to 30 minutes) for one nurse of interest. That is, the entire process is executed for each nurse. As shown in FIG. 8, when the server 12 starts the entire process, the server 12 confirms the business in step S1. Here, it is determined by referring to the electronic medical record DB 28 whether or not there is a nursing work to be performed on the patient in charge of the nurse concerned. In a succeeding step S3, it is determined whether or not it is a nursing work start time. That is, it is determined whether there is a nursing service to be started. However, it is not necessary to strictly determine whether it is the start time of the nursing service, and it is determined whether it is within a certain time (for example, 3 to 5 minutes) before and after the start time of the nursing service.

  If “NO” in the step S3, that is, if it is not the start time of nursing work, the process returns to the same step S3 as it is. However, in order to reduce wasteful processing, the process may return to step S3 after waiting for a certain time (for example, 3 to 5 minutes). On the other hand, if “YES” in the step S3, that is, if it is the start time of the nursing work, it is determined whether or not the focused nurse has started the nursing work in a step S5. Here, the passage sensor 18 for detecting the nurse ID of the nurse to be noticed changes, the nurse is photographed with a video camera, or the nurse starts nursing work through the pin microphone 96. It is determined whether there was any voice input.

  If “NO” in the step S5, that is, if the nursing work is not started, a work start alarm (warning) is issued in a step S7, and the process returns to the step S5. Here, the warning is performed by, for example, transmitting a message indicating that nursing work should be started to the terminal 16 assigned to the nurse of interest. When information such as a message is transmitted to the terminal 16, as described above, the nurse wearing the terminal 16 is notified of the message (information) by sound and / or vibration.

On the other hand, if "YES" in the step S5, that is, if the start nursing operations, at step S9, it is determined whether there is a scenario _{s i} including the event _{e i.} Here, the server 12 detects the action of the focused nurse as described above. Then, the server 12 refers to the scenario DB 26, it is determined whether the scenario s _i are present including the event e _i that matches the detected action.

If at step S9 "YES", that is, if a scenario _{s i} including the event _{e i} that matches the behavior of the nurses, in step S11, to confirm the target Oi. Here, the target Oi is a target obtained when business is performed according to the scenario s _i . In step S11, the target O _i scenario s _i including the event e _i is the business described in the electronic medical chart, that is, it is confirmed if it matches the nursing activities confirmed in step S1 (target O) is there.

In the following step S13, it is determined whether or not can not explain the ultimate goal O from all of the scenario s _i, including the action e _i with the current background knowledge F (confirmation). If “YES” in the step S13, that is, if the final goal O cannot be explained from the current background knowledge F and all the scenarios s _i including the action e _i , the process returns to the step S9 as it is and the scenario s _i The detection and the confirmation of the target O _i are executed again. However, if "NO" in the step S13, that is, if the from all scenarios s _i containing the current background knowledge F and action e _i can explain goal O in step S15, the sub-goals, which will be described later An achievement confirmation and warning process (see FIGS. 9 and 10) is executed, and the entire process is terminated.

Furthermore, if "NO" in the step S9, that is, if there is a scenario s _i including the event e _i that matches the behavior of the nurse, at step S17, a series of actions of the nurses (event e _i) To win. In a succeeding step S19, it is determined whether or not the focused nurse has finished the nursing work. If “NO” in the step S19, that is, if the focused nurse has not finished the nursing work, the process returns to the step S17. On the other hand, if “YES” in the step S19, that is, if the nurse to be focused ends the nursing work, a series of actions of the nurse to be focused on (hereinafter referred to as “event sequence el _x ”) in a step S21. Is stored (temporarily stored) in the event DB 30, and the entire process is terminated.

Here, although simply shown, in steps S17 to S21, an event e is detected by detecting an action (event e _x ) at regular intervals from the start to the end of nursing work. _The event string el _{x in} which _x is arranged in time series is stored in the event DB 30.

FIG. 9 and FIG. 10 are flowcharts showing confirmation (inference) and warning processing of each sub-goal achievement in step S15 shown in FIG. When the server 12 starts confirmation and warning processing of each sub-goal achievement, it initializes a variable j (j = 1) in step S31. In subsequent step S33, it is determined (confirmed) whether or not the sub-target O _j can be explained from the current background knowledge F and the partial scenario s _ij . If "NO" in the step S33, that is, it is inferred that explain the sub target O _j from the current background knowledge F and partial scenarios s _ij, it is determined to be able to achieve sub-goals O _j, at step S35 , It is determined whether or not the scenario s _ij includes events to be executed in chronological order. This is determined with reference to the label attached to the partial scenario s _ij .

If “NO” in the step S35, that is, if the scenario s _ij does not include events to be executed in chronological order, the process proceeds to a step S41 as it is. However, if “YES” in the step S35, that is, if the scenario s _ij includes events to be executed in time series, it is determined whether or not the events are executed in the time series in step S37. Here, the action of the nurse is detected, and it is determined whether or not the action is about to be executed according to the event included in the scenario s _ij .

If “NO” in the step S37, that is, if the event is not executed in chronological order, a scenario violation is alarmed in a step S39, and the process returns to the step S37. However, if “YES” in the step S37, that is, if the events are executed in chronological order, it is determined whether or not all the current jobs are completed in a step S41. That is, it is determined whether or not the execution of all the events e _i included in the scenario s _i is completed and the goal O _i is achieved (the nursing work indicated by the electronic medical record is completed). If “NO” in the step S41, that is, if all the current jobs are not completed, the variable j is incremented (j = j + 1) in a step S43, and the process returns to the step S33. That is, an inference is made as to whether or not the next sub-target O _{j + 1} will be achieved. However, if “YES” in the step S41, that is, if all the current work is ended, confirmation of each sub-goal achievement and warning processing are returned.

Furthermore, if "YES" in the step S33, i.e. it determines that if it is inferred that not explain the sub target O _j from the current background knowledge F and scenarios s _ij, can not be achieved subgoals O _j, 10 In step S45, it is determined whether or not another nursing operation has been performed. If “NO” in the step S45, that is, if it is not shifted to another nursing work, it is determined whether or not the current nursing work is terminated in a step S47.

  If “NO” in the step S47, that is, if the current nursing work is not ended halfway, the process returns to the step S33 shown in FIG. 9 as it is. On the other hand, if “YES” in the step S47, that is, if the current nursing work is ended halfway, the process proceeds to a step S53 as it is.

Furthermore, if "YES" in the step S45, that is, if the operation proceeds to another nursing operations, at step S49, the check the scenario s _k corresponding to the different care business, the process proceeds to step S51. In this embodiment, for simplicity, the confirmation processing of the scenario s _k corresponding to another nursing operations are shown in one step (processing), but strictly speaking, the process of step S9~ step S17 Is executed. In other words, even if a transition is made to another nursing service, a medical accident may occur in the other nursing service. This is to detect the occurrence of this in advance and give a warning.

  In step S51, it is determined whether or not to return to the original nursing service. Here, the original nursing service is the nursing service (the current nursing service described above) that was performed immediately before “YES” is determined in step S45. If “YES” in the step S51, that is, if returning to the original nursing work, the process returns to the step S33 as it is. However, if “NO” in the step S51, that is, if it is not possible to return to the original nursing work, a scenario violation alarm is given in a step S53, and the process returns to the step S51.

  Although illustration is omitted, in the processes of steps S33, S37, S41, S45, S47, and S51, the action of the nurse of interest is detected.

  In this way, the results obtained from nurses' behaviors and scenarios in nursing work are inferred, and warnings are issued only when the inference results cannot achieve the desired goal. You can warn only when.

As described above, the event DB 30 stores the event string eli. For example, when the entire process described above is repeatedly executed, a plurality of event strings el _x are stored in the event DB 30. In this embodiment, the server 12 creates a temporary scenario based on a plurality of event sequences el _x , registers the created temporary scenario as a new scenario in the scenario DB 26, or already uses the created temporary scenario to store the scenario DB 26. Change the scenario registered in. This is because the scenario DB 26 corresponding to the hospital (environment) to which the warning system 10 is applied can be constructed. In other words, it is possible to customize a scenario created from a nursing manual or the like.

Here, the creation of a new scenario and the change of the scenario will be briefly described. For example, a case where a scenario is created from four event sequences el _x (x = 1, 2, 3, 4) will be described. Here, the four event sequences el ₁ , el ₂ , el ₃ , and el ₄ are expressed by Equation 6. However, among the subscripts of each event e, the number on the left indicates the event string el _x , and the number on the right indicates the order of the events e arranged in time series.

[Equation 6]
Event column _el 1 = _{{e 11} = syringe _{preparation, e 12} = distilled water _{preparation, e 13} = Diamox _{preparation, e 14} = Diamox _dissolved, poured into _{e 15} = _{syringe, e 16} = _{standby, e 17} = injection}
Event sequence el ₂ = {e ₂₁ = diamox preparation, e ₂₂ = distilled water preparation, e ₂₃ = syringe preparation, e ₂₄ = diamox dissolution, e ₂₅ = injection into syringe, e ₂₆ = wait, e ₂₇ = injection}
Event column _el 3 = _{{e 31} = distilled water _{preparation, e 32} = Diamox _{preparation, e 33} = syringe _{preparation, e 34} = Diamox _dissolved, poured into _{e 35} = _{syringe, e 36} = _{standby, e 37} = injection}
Event column _el 4 = _{{e 41} = syringe _{preparation, e 42} = distilled water _{preparation, e 43} = Diamox _prepared, injected into _{e 44} = _{syringe, e 45} = Diamox _{dissolution, e 46} = _stand, poured into _{e 47} = syringe, e ₄₈ = wait, e ₄₉ = injection}
From such an event sequence el _x , the following learning result is obtained. The “syringe preparation”, “distilled water preparation” and “diammox preparation” events can be flexibly reordered. In addition, the order of the “injection into the syringe”, “diamox dissolution”, and “waiting” events can be changed, and the number of executions can also be changed (changeable). Furthermore, the “waiting” and “injection” events cannot be fixed either in number or order. Here, assuming that a set of flexible events (event group) is E _x1 , a changeable event group is E _x2 , and a fixed event group is E _x3 , the event group E _x2 is always executed before the event group E _x3. (Execute) (after (E _x3 , E _x2 )). The event group E _x3 is executed last (last (E _x3 )).

In the event sequence el _x , there is no corresponding event group, but the event group E _A to be executed first is always labeled first (first (E _A )). In this embodiment, an event group (first) to be executed first and an event group (fixed) that needs to follow the order are registered in advance in the knowledge DB 28 as knowledge, and a scenario (a “provisional scenario” to be described later). Referenced when creating

For example, a temporary scenario (temporary scenario) can be generated by arranging the event groups as described above in the order of appearance (time series). In the example of the event string el _x shown in Equation 6, a provisional scenario ts _x = {E _x1 , E _x2 , E _x3 } is created.

Further, when events are obtained for various drugs, for example, E _x1 = {flexible; syringe preparation, distilled water preparation, dissolved drug preparation}, E _x2 = {changable; injection into syringe, dissolved drug Learning results are obtained: dissolution, waiting}, E _x3 = {fixed; waiting, injection}, dissolved drug = {Diamox, cefurtol, cellarsen,.

That is, by searching the thesaurus (synonyms), as thesaurus G _x, are as summarized by using the same words events e _x a similar (word or phrase). In this way, it differs only in medicine name and equipment name, the procedure does not have that (the order of events e _i) is registered in duplicate scenario s _i for the same nursing business. That is, the scenario s _i is not increased unnecessarily. For example, “pure water” and “distilled water” are synonyms. The same can be said for actions (verbs) as well as drugs and instruments. For example, “dissolve” and “dissolve” are synonyms.

Although illustration is omitted, by using a commercially available synonym dictionary or a synonym dictionary G _x registered in the knowledge DB 28, words or phrases indicating the same meaning content even if different words are grouped into words or phrases of the same category. . Therefore, as described above, the thesaurus G _x, is the index that can be pulled in the reverse (search) is attached. For example, when the synonym dictionary G _x = {pure, distilled water} is created, an index is attached so that the synonym dictionary G _x can be understood from the words “pure” and “distilled water”.

Specifically, the server 12 executes the scenario construction process shown in FIGS. For example, the scenario construction process is executed every certain time (for example, 10 to 30 days) or every time the event sequence el _x reaches a certain number (for example, 100). Alternatively, it may be executed manually by the administrator of the server 12.

As shown in FIG. 11, when starting the scenario construction process, the server 12 reads data (data set for the event string el _x ) from the event DB 30 in step S71. In step S73, the last events in the event sequence el _x is withdrawn same event column el _x (extract). Then, in step S75, the subjecting the label of the last (last) in the last event of the total event sequence el _x taken out.

Subsequently, in step S77, the variable x is initialized (x = 1). Here, the variable x is a variable for individually counting all event sequences el _x (m pieces) extracted in step S73. In the next step S79, based on the first event sequence el _x of the total event sequences el _x taken out is compared with the x-th event column el _x. Here, the event included in the reference event sequence el _x is compared with the event included in the _xth event sequence el _x .

In step S81, it is determined whether all events before the last event are the same based on the comparison result in step S79. Strictly speaking, it is determined whether the events before the last event are of the same type and arranged in the same order. That is, are you determine whether it is exactly the same as the x-th event column el _x the reference of the event column el _x. If “NO” in the step S81, that is, if there is even one event that does not match or the order of the events is different, the process proceeds to a step S85 as it is. On the other hand, if “YES” in the step S81, that is, if all the events before the last event including the order thereof are the same, in step S83, they are grouped with the reference event string el _x (this implementation). In the example, it is “group A”), and the process proceeds to step S85.

In step S85, it is determined whether all event sequences el _x extracted in step S73 have been compared. In the processing of steps S79 to S85, one reference event sequence el _x and another event sequence el _x are sequentially compared among all the extracted event sequences el _x (m). It is determined whether or not the maximum value m is reached. If “NO” in the step S85, that is, if the comparison for all the extracted event sequences el _x is not completed, the variable x is incremented (x = x + 1) in the step S87, and the process returns to the step S79. . That is, the reference event sequence el _x is compared with the next (x + 1) th event sequence el _{x + 1} . On the other hand, if “YES” in the step S85, that is, if the comparison for all the extracted event strings el _x is completed, all event strings el _x not belonging to the group A are clustered in the step S89 shown in FIG. Turn into. That is, the data set used after the process of step S91 is generated.

In the subsequent step S91, the variable y is initialized (y = 1). Here, the variable y is of all event sequences el _x read from the event DB 30, the remaining events column _el y (n-number of the last event has been removed event sequence el _x belonging to the group A from the same event sequences el _x ) Is a variable for counting individually. In the subsequent step 93, the above-mentioned reference event sequence el _x is compared with the y-th event sequence el _y . Here, the events included in the reference event sequence el _x and the events included in the yth event sequence el _y are compared in the order of appearance.

In the next step S95, it is determined whether or not the same events are arranged in the same order. Here, it is determined whether or not two or more of the same events (not all events, the same applies hereinafter) are arranged in the same order. If “YES” in the step S95, that is, if the same events are arranged in the same order, they are grouped with the reference event string el _{x in} a step S97, and the process proceeds to the step S103. That is, in the step S97, y-th event sequence el _y are classified into groups A.

If “NO” in the step S95, that is, if the same event is not arranged in the same order, it is determined whether or not the same event is arranged in a different order in a step S99. Here, it is determined whether or not two or more same events are arranged in different orders. If “YES” in the step S99, that is, if the same event is arranged in a different order, the group is grouped in a group (in this embodiment, the group B) different from the reference event string el _{x in} the step S101. The process proceeds to step S103.

If “NO” in the step S99, that is, if the same event is not arranged in a different order, the process proceeds to a step S103 as it is. In step S103, it is determined whether the comparison for all event sequences el _y that are clustered. In the processing of steps S93 to S103, all the clustered event sequences el _y (n) are sequentially compared with the reference event sequence el _x , so here it is determined whether or not the variable y is greater than or equal to the maximum value n. .

If in step S103 "NO", if that is not finished comparisons for all events columns el _y that are clustered in step S105, increments the variable y (y = y + 1) , step S93 Return to. That is, the comparison process for the next (y + 1) th event sequence ely _{+ 1} is executed. On the other hand, if "YES" in the step S103, that is when it is completed to compare for all event sequences el _y that are clustered in step S107 shown in FIG. 13, to group the remaining events column el _x . Here, of the last event of the same event column el _x, event sequence el _x where in any of the groups A and B are not a group are grouped as a group C.

In subsequent step S109, events are grouped for each group. Specifically, an event group E _x3r = {fixed; two or more events} is created from the event sequence el _x belonging to the group A, and the event group is _derived from the event sequence el _x (here, el _y ) belonging to the group B E _x1p = {flexible; two or more events} is created, and an event group E _x2q = {changable; two or more events} is created from the event sequence el _x belonging to group C. For example, the event group E _x3r is created by extracting events in which the same events are arranged in the same order in all the event strings el _x belonging to the group A. Further, in all events columns el _x belonging to group B, of the events except for the event using the event group E _X3R, by extracting a common event, event group E _X1P is created. Further, by extracting events that are not used in either the event group E _x3r or the event group E _{x1p in} the event sequence el _x belonging to the group C, the event group E _x2q is created.

  However, when the knowledge DB 28 is referred to and it corresponds to the first (first) event group, the label is attached.

Also, English words in {} of the event group mean labels. The subscript (x) at the left end of the event group E means that the last event in the event string el _x is the same event. The subscript (1, 2, 3) in the center means a group. Here, “1” is group B, “2” is group C, and “3” is group A. Also, the rightmost subscripts (p, q, r (= 1, 2, 3,...)) Are subscripts for distinguishing between event groups in the same group.

  In addition, since the event group shown in Equation 6 has only one event group in each group, subscripts corresponding to p, q, and r are omitted.

Next, in step S111, the event groups E _x1p , E _x2q , and E _{x3r grouped} into groups are registered in the group _DB 32. In step S113, the event groups E _x1p , E _x2q , and E _x3r collected in each group are arranged in the order of appearance (time series) to create a temporary scenario (temporary scenario) ts _x . However, the group A includes an event with the last label, which is the last event of the provisional scenario. At this time, the contents stored in the knowledge DB 28 as knowledge (a set of events to be arranged at the head and a set of events to keep the order) are referred to.

Subsequently, in step S115, it is determined whether or not there is a scenario s _i similar to the temporary scenario ts _x in the scenario DB 26. In this embodiment, an event included in the provisional scenario ts _x and an event included in each scenario s _i in the scenario DB 26 are compared for each scenario s _i , and there is only one event that is different (only one event). Is included)) Determine whether scenario s _i exists.

If in step S115 "NO", that is, in the scenario DB26, if there is no scenario _{s i} similar to temporary scenario ts _x, in step S117, the registered scenario DB26 provisional scenario ts _x as a new scenario _{s i} Then, the scenario construction process ends.

On the other hand, if “YES” in the step S115, that is, if there is a scenario s _i similar to the temporary scenario ts _x in the scenario DB 26, a different portion (object) is detected in a step S119. In step S121, it is determined whether different objects are similar. Here, whether different objects (drug names and instrument names) are similar is determined using a commercially available synonym dictionary and a synonym dictionary G _x already stored in the knowledge DB 28. However, in step S121, for the sake of simplicity, it is determined whether or not the objects are similar to each other. However, it is also possible to determine whether or not different actions (verbs) are similar.

If “NO” in the step S121, that is, if different objects are not similar, the process proceeds to a step S117. On the other hand, if "YES" in step S117, the words different objects when similar creates a thesaurus _{G x} of the position in step S123. However, although not a detailed description, if already created the thesaurus G _x, without executing the processing of step S123 and step S125, the process proceeds to step S127.

In the subsequent step S125, the synonym dictionary G _x is stored in the knowledge DB 28 with a reverse index, and in step S127, the corresponding part of the original scenario s _i stored in the scenario DB 26 is replaced with the synonym dictionary G _x . The scenario construction process ends. That is, in step S127, the scenario s _i is changed to a new scenario including the temporary scenario ts _x and the scenario s _i .

Incidentally, in the case in FIG. 11-FIG. 13, for simplicity, but the last event the same event sequence el _x has been described only for the case of one type, the last event is the same event string el _x there is a plurality kinds, In each type, the processes of steps S75 to S127 are executed.

  In this embodiment, an event sequence different from the registered scenario is stored, a temporary scenario is created from a plurality of event sequences and registered as a new scenario, or is combined with an already existing scenario. Can be added or changed. Therefore, for example, a scenario registered in advance based on a nursing service manual can be customized according to a hospital (environment) to which the warning system is applied.

  In this embodiment, a warning is given when it is estimated that the final goal cannot be obtained. However, a warning is given when the execution order of the set of fixed events is wrong. Also good.

  In this embodiment, a scenario to be registered in advance is created based on a nursing service manual. However, the present invention is not limited to this. It is also possible to create a scenario to be registered in advance by monitoring the actual nursing work of the nurse. In addition to referring to a nursing service manual, the actual nursing service may be monitored and a scenario registered in advance may be created.

  Further, in this embodiment, when any one event is different between the temporary scenario and the scenario, it is determined that the temporary scenario and the scenario are similar. However, the present invention is not limited to this. Even when two or more events are different, it may be determined that they are similar. Alternatively, the number of event differences for determining similarity may be variably set according to the length of the scenario (total number of events). For example, when the total number of events is large (the scenario is long), it is considered that it is allowed to determine that the temporary scenario and the scenario are similar even if the number of event differences is relatively large.

  Furthermore, in this embodiment, the case of constructing a scenario for nursing work has been described. However, a scenario for other work may be constructed. For example, it is possible to construct a scenario of a work in a test (experiment) facility or factory that handles powerful drugs, or a work in a factory that performs assembly work of automobiles.

FIG. 1 is an illustrative view showing one example of a configuration of a warning system of the present invention. FIG. 2 is an illustrative view showing an electrical configuration of the server shown in FIG. FIG. 3 is an illustrative view showing an electrical configuration of the nurse terminal shown in FIG. FIG. 4 is an illustrative view for explaining an installation state of the passage sensor shown in FIG. FIG. 5 is an illustrative view showing a state in which the nurse terminal, the repeater, and the transmitter are attached to the nurse. FIG. 6 is an illustrative view showing an electrical configuration of the passage sensor in FIG. FIG. 7 is an illustrative view showing an electrical configuration of the repeater shown in FIG. FIG. 8 is a flowchart showing the overall processing of the server shown in FIG. FIG. 9 is a flowchart showing a part of the warning process of the server shown in FIG. FIG. 10 is another part of the server warning process shown in FIG. 1, and is a flowchart subsequent to FIG. FIG. 11 is a flowchart showing a part of the scenario construction process of the server shown in FIG. 12 is another part of the server scenario construction process shown in FIG. 1, and is a flowchart subsequent to FIG. FIG. 13 is another part of the server scenario construction process shown in FIG. 1, and is a flowchart subsequent to FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Warning system 12 ... Server 16 ... Nurse's terminal 18 ... Pass sensor 20 ... Repeater 22 ... Monitor device 24, 26, 28, 30, 32 ... Database 40, 70, 90 ... CPU
42, 92 ... Memory 44 ... Key switch 48 ... LCD
52 ... Vibration motor 54, 78, 102 ... Wireless LAN
72, 74: Light receiving module 76: RAM
96 ... Pin microphone 98 ... Non-contact sensor 100 ... Acceleration sensor 110 ... Transmitter

Claims (7)

A scenario construction device for constructing a scenario indicating an action procedure for a worker's work,
Created scenario storage means for storing created scenarios created in advance for each business,
Behavior detecting means for detecting the behavior of the worker;
Comparison means for comparing a series of actions detected by the action detection means with the created scenario;
Action sequence storage means for storing the series of actions as an action sequence arranged in time series when the comparison result of the comparison means indicates a mismatch;
An extracting means for extracting an action sequence having the same last action among a plurality of action sequences stored in the action sequence storage means;
First grouping means for grouping the action sequences that are the action sequences extracted by the extraction means and that all actions before the last action are the same including their order into a first group ,
Among the action sequences extracted by the extraction unit and not grouped into the first group by the first grouping unit, a part included in the action sequence grouped into the first group First order determining means for determining whether there is an action sequence in which the same action group as the action group is arranged in the same order;
An adding means for adding to the first group an action sequence determined by the first order determining means that the same action group is arranged in the same order;
Among the action sequences extracted by the extraction unit and not grouped into the first group by the first grouping unit, a part included in the action sequence grouped into the first group A second order determination means for determining whether there is an action sequence in which the same action group as the action group is arranged in a different order;
Second grouping means for grouping action sequences determined by the second order determining means to be the same behavior group arranged in different orders into a second group different from the first group;
An action sequence determined by the first order determining unit to determine that the same action group is not arranged in the same order and the second order determining unit to determine that the same action group is not arranged in a different order is the first group. And third grouping means for grouping into a third group different from the second group,
Provisional scenario creation means for creating a provisional scenario based on an action sequence grouped into the first group, the second group, and the third group;
Similarity determination means for determining whether or not the temporary scenario and the created scenario are similar, and when the similarity determination means determines that the temporary scenario and the created scenario are not similar, A scenario construction device comprising scenario registration means for registering in the created scenario storage means as a new scenario.   When the similarity determination unit determines that the temporary scenario and the created scenario are similar, the scenario determination unit further changes the created scenario to a new scenario including the temporary scenario and the created scenario. The scenario construction device according to claim 1.   The similarity determination unit determines whether the temporary scenario and the created scenario are similar according to a different number of actions included in the temporary scenario and the behavior of the created scenario. 2. The scenario construction device according to 2. Based on the action sequence grouped in the first group, a first action group is created in which both the order of execution and the number of executions are fixed, and based on the action sequence grouped in the second group The second action group that can change the execution order is created, and the third action group that can change both the order of execution and the number of times of execution is created based on the action sequence grouped into the third group. A behavior group creating means for
The scenario construction device according to any one of claims 1 to 3, wherein the temporary scenario creating means creates the temporary scenario by arranging the first action group, the second action group, and the third action group in the order of appearance. A scenario construction device for constructing a scenario indicating an action procedure for a worker's work,
Created scenario storage means for storing created scenarios created in advance for each business,
Behavior detecting means for detecting the behavior of the worker;
Comparison means for comparing a series of actions detected by the action detection means with the created scenario;
Action sequence storage means for storing the series of actions as an action sequence arranged in time series when the comparison result of the comparison means indicates a mismatch;
An extracting means for extracting an action sequence having the same last action among a plurality of action sequences stored in the action sequence storage means;
First grouping means for grouping the action sequences that are the action sequences extracted by the extraction means and that all actions before the last action are the same including their order into a first group ,
Among the action sequences extracted by the extraction unit and not grouped into the first group by the first grouping unit, a part included in the action sequence grouped into the first group First order determining means for determining whether there is an action sequence in which the same action group as the action group is arranged in the same order;
An adding means for adding to the first group an action sequence determined by the first order determining means that the same action group is arranged in the same order;
Among the action sequences extracted by the extraction unit and not grouped into the first group by the first grouping unit, a part included in the action sequence grouped into the first group A second order determination means for determining whether there is an action sequence in which the same action group as the action group is arranged in a different order;
Second grouping means for grouping action sequences determined by the second order determining means to be the same behavior group arranged in different orders into a second group different from the first group;
An action sequence determined by the first order determining unit to determine that the same action group is not arranged in the same order and the second order determining unit to determine that the same action group is not arranged in a different order is the first group. And third grouping means for grouping into a third group different from the second group,
Provisional scenario creation means for creating a provisional scenario based on an action sequence grouped into the first group, the second group, and the third group;
Similarity determination means for determining whether the temporary scenario and the created scenario are similar, and when the similarity determination means determines that the temporary scenario and the created scenario are similar, the temporary scenario and the generated scenario A scenario construction device comprising scenario changing means for changing a created scenario to a new scenario including the created scenario. A scenario construction device for constructing a scenario indicating an action procedure for a worker's work,
Created scenario storage means for storing created scenarios created in advance for each business,
Action sequence storage means for storing a series of actions that are a series of actions of the worker and that do not match the created scenario as an action sequence arranged in time series,
An extracting means for extracting an action sequence having the same last action among a plurality of action sequences stored in the action sequence storage means;
First grouping means for grouping the action sequences that are the action sequences extracted by the extraction means and that all actions before the last action are the same including their order into a first group ,
Among the action sequences extracted by the extraction unit and not grouped into the first group by the first grouping unit, a part included in the action sequence grouped into the first group First order determining means for determining whether there is an action sequence in which the same action group as the action group is arranged in the same order;
An adding means for adding to the first group an action sequence determined by the first order determining means that the same action group is arranged in the same order;
Among the action sequences extracted by the extraction unit and not grouped into the first group by the first grouping unit, a part included in the action sequence grouped into the first group A second order determination means for determining whether there is an action sequence in which the same action group as the action group is arranged in a different order;
Second grouping means for grouping action sequences determined by the second order determining means to be the same behavior group arranged in different orders into a second group different from the first group;
An action sequence determined by the first order determining unit to determine that the same action group is not arranged in the same order and the second order determining unit to determine that the same action group is not arranged in a different order is the first group. And third grouping means for grouping into a third group different from the second group,
Provisional scenario creation means for creating a provisional scenario based on an action sequence grouped into the first group, the second group, and the third group;
Similarity determination means for determining whether or not the temporary scenario and the created scenario are similar, and when the similarity determination means determines that the temporary scenario and the created scenario are not similar, A scenario construction device comprising scenario registration means for registering in the created scenario storage means as a new scenario. A scenario construction device for constructing a scenario indicating an action procedure for a worker's work,
Created scenario storage means for storing created scenarios created in advance for each business,
Action sequence storage means for storing a series of actions that are a series of actions of the worker and that do not match the created scenario as an action sequence arranged in time series,
An extracting means for extracting an action sequence having the same last action among a plurality of action sequences stored in the action sequence storage means;
First grouping means for grouping the action sequences that are the action sequences extracted by the extraction means and that all actions before the last action are the same including their order into a first group ,
Among the action sequences extracted by the extraction unit and not grouped into the first group by the first grouping unit, a part included in the action sequence grouped into the first group First order determining means for determining whether there is an action sequence in which the same action group as the action group is arranged in the same order;
An adding means for adding to the first group an action sequence determined by the first order determining means that the same action group is arranged in the same order;
Among the action sequences extracted by the extraction unit and not grouped into the first group by the first grouping unit, a part included in the action sequence grouped into the first group A second order determination means for determining whether there is an action sequence in which the same action group as the action group is arranged in a different order;
Second grouping means for grouping action sequences determined by the second order determining means to be the same behavior group arranged in different orders into a second group different from the first group;
An action sequence determined by the first order determining unit to determine that the same action group is not arranged in the same order and the second order determining unit to determine that the same action group is not arranged in a different order is the first group. And third grouping means for grouping into a third group different from the second group,
Provisional scenario creation means for creating a provisional scenario based on an action sequence grouped into the first group, the second group, and the third group;
Similarity determination means for determining whether the temporary scenario and the created scenario are similar, and when the similarity determination means determines that the temporary scenario and the created scenario are similar, the temporary scenario and the generated scenario A scenario construction device comprising scenario changing means for changing a created scenario to a new scenario including the created scenario.

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