JP7342784B2 - State management system and state management method - Google Patents

Description

The present invention relates to a state management technique for managing the state of a worker.

Patent Document 1 describes a worker management system. The worker management system of Patent Document 1 includes a helmet, a multifunctional mobile terminal, and a server.

A helmet and a multifunctional mobile terminal are worn by the worker. The helmet includes a condition sensor. The condition sensor detects condition data regarding the health condition of the worker and outputs it to the multifunctional mobile terminal.

The multifunctional mobile terminal compares the status data with a threshold value to determine the health status of the worker. The multifunctional mobile terminal also transmits status data or determined health status to the server. When the server receives the status data, the server compares the status data with a threshold value to determine the health status of the worker.

JP2016-37671A

However, it has not been easy to update the database that determines the threshold values for determining the above-mentioned health conditions.

For example, the server administrator obtains an answer as to whether the judgment result is correct orally or through a questionnaire form, etc., via the administrator of the site where the worker belongs. Based on this answer, the server administrator updated the database used to determine the status.

Therefore, an object of the present invention is to easily obtain answers for updating a state determination database (state model) from an operator.

The state management system of the present invention includes a sensor, a state abnormality determination section, a question generation section, a question presentation section, and an answer reception section. The sensor senses the condition of the worker. The state abnormality determination unit determines whether the worker's state is abnormal based on a state model that indicates a relationship between the sensing result and the state abnormality. The question generation unit generates a question regarding the determined abnormal state. The question presentation unit is provided at a location that can be recognized by the operator, and presents questions. The answer receiving section is provided at a location that can be operated by the operator, and receives answers to questions.

With this configuration, a state abnormality is automatically determined from the sensing result of the worker's state based on the state model, and a question corresponding to this state abnormality is automatically generated. Then, this question is automatically sent to a location that the worker can recognize, and the worker can easily input an answer to this question. Thereby, it is possible to easily obtain an answer as to whether or not the determination of the status abnormality is correct.

According to the present invention, it is possible to easily obtain answers for updating a state determination database (state model) from a worker.

FIGS. 1A and 1B are diagrams showing how the state management system according to the embodiment of the present invention is used. FIG. 2 is a functional block diagram showing the configuration of the state management system according to the embodiment of the present invention. FIG. 3 is a diagram showing a specific process group of the state management process executed by the calculation unit 31. FIG. 4 is a flowchart showing the processing of the attached device. FIG. 5 is a flowchart showing the processing of the management device. FIG. 6 is a flowchart showing a first example of processing by the worker passage management device. FIG. 7 is a diagram showing an example of a question and answer image. FIG. 8 is a flowchart showing a second example of the processing of the worker passage management device.

A state management system and a state management method according to an embodiment of the present invention will be described with reference to the drawings.

(An example of a situation where the state management system 10 is used)
FIGS. 1A and 1B are diagrams showing how the state management system according to the embodiment of the present invention is used.

The state management system 10 is applied to a construction site 90, for example, as shown in FIGS. 1(A) and 1(B). At the site 90, there is a building 91 under construction. A gate 900 for entry and exit is installed at the site 90. A worker passage management device 40 is installed near the gate 900.

The worker WO is wearing the mounting device 20 and carrying the RFID card 200. The mounting device 20 includes, for example, a helmet and various electronic devices (details will be described later) equipped on the helmet. The RFID card 200 has an identification ID unique to the worker WO. The RFID card 200 and the attached device 20 are associated with each other by an identification ID or the like.

When starting work, the worker WO brings the RFID card 200 close to the worker passage management device 40 to register for entry. Further, as shown in FIG. 1B, when the worker WO finishes the work, the worker WO brings the RFID card 200 close to the worker passage management device 40 to register for leaving. At this time, the worker passage management device 40 presents questions and receives answers, which will be described later.

(Configuration of state management system 10)
FIG. 2 is a functional block diagram showing the configuration of the state management system according to the embodiment of the present invention. As shown in FIG. 2, the state management system 10 includes a mounting device 20, a management device 30, and a worker passage management device 40. The management device 30 is installed at a location different from the above-mentioned site 90, for example.

(Configuration of mounting device 20)
The mounting device 20 includes a control section 21, a communication section 22, and a sensor 23. The control section 21 and the communication section 22 are realized by predetermined electronic circuit devices.

The sensor 23 is a sensor depending on the state of the managed object. For example, the sensor 23 selects and employs an acceleration sensor, a posture sensor, a temperature sensor, a humidity sensor, a pressure sensor, etc. depending on the state of the management target. By using an acceleration sensor or a posture sensor, the sensor 23 can obtain sensing data that detects falling or falling, for example. By using a temperature sensor, humidity sensor, pressure sensor, etc., the sensor 23 can obtain sensing data for detecting thermal stress, for example.

The sensor 23 detects the state of the worker WO and generates sensing data according to the state of the worker WO. The sensor 23 outputs sensing data to the control unit 21.

The control unit 21 shares the RFID card 200 and the identification ID of the worker WO. The control unit 21 may be configured to determine whether the sensing data should be transmitted to the management device 30, and to transmit the sensing data if a predetermined condition is satisfied. In this case, the control unit 21 stores the sensing data transmission conditions. The control unit 21 outputs the sensing data to the communication unit 22 if the sensing data satisfies the transmission conditions. At this time, the control unit 21 associates the identification ID of the worker WO and the detection time with the sensing data.

The transmission condition is, for example, when sensing data exceeds a threshold value for abnormality determination, or when sensing data shows a different tendency from past sensing data. These transmission conditions correspond to the state model updated by the management device 30, and are changed depending on the updated state of the state model. Further, the transmission conditions may be set individually for each worker WO, but may not be set for each worker WO, but may be generalized conditions that are common to a plurality of workers.

The communication unit 22 transmits the sensing data that has been determined to be transmitted to the communication unit 34 of the management device 30 . Communication between the communication unit 22 and the communication unit 34 is realized, for example, by long-distance wireless communication or wireless communication that combines short-range wireless communication and long-distance wireless communication.

(Configuration of management device 30)
The management device 30 is realized by, for example, a computer and a storage. The management device 30 includes a calculation section 31 , a state model DB 32 , an entrance/exit management DB 33 , a communication section 34 , and a data bus 300 . The calculation unit 31, state model DB 32, entrance/exit management DB 33, and communication unit 34 are connected by a data bus 300.

The calculation unit 31 is an execution unit that executes state management processing and entrance/exit management processing. The calculation unit 31 is realized by a storage unit that stores a state management processing program and an entrance/exit management processing program, and a CPU that executes these programs.

The calculation unit 31 executes entrance/exit management processing using the entrance/exit data stored in the entrance/exit management DB 33 and the entrance/exit data transmitted from the worker passage management device 40. Note that a detailed description of the entrance/exit management process will be omitted.

The calculation unit 31 uses the sensing data from the attached device 20 and the state model stored in the state model DB 32 to execute the worker's state management process. The status model is a model that determines the presence or absence of various status abnormalities occurring in the worker WO based on sensing data. That is, by referring to the state model, the calculation unit 31 can determine that a predetermined abnormal state has occurred in the worker. Then, for example, when a specific abnormality occurs, the calculation unit 31 issues an alert or the like to the manager or management company for the worker WO.

As a state management process, the calculation unit 31 detects an abnormal state of the worker WO, generates a question for updating the state model, and updates the state model using the answer. Note that a specific example of updating the state model will be described later.

The state model DB 32 stores the above-mentioned state model. When the state model is updated by the calculation unit 31, the state model DB 32 overwrites the stored state model with the updated state model.

The communication unit 34 realizes long-distance communication between the communication unit 22 of the mounting device 20 and the communication unit 42 of the worker passage management device 40. Communication between the communication unit 34 and the communication unit 22 is, for example, wireless communication. Communication between the communication unit 34 and the communication unit 42 may be wireless communication or wired communication.

The communication unit 34 receives sensing data from the communication unit 22 of the attached device 20 and outputs it to the calculation unit 31 via the data bus 300.

The communication unit 34 transmits questions necessary for updating the state model generated by the calculation unit 31 to the communication unit 42 of the worker passage management device 40. Further, the communication unit 34 receives a reply transmitted from the communication unit 42 of the worker passage management device 40 and outputs it to the calculation unit 31 via the data bus 300. Further, the communication unit 34 receives entrance/exit information from the worker passage management device 40 and outputs it to the calculation unit 31, and the calculation unit 31 stores the entrance/exit information in, for example, an entrance/exit management DB.

(Configuration of worker passage management device 40)
The worker passage management device 40 includes a control section 41, a communication section 42, a display section 43, and an operation input section 44. The control section 41 and the communication section 42 are realized by, for example, a predetermined electronic circuit. The display unit 43 is realized by, for example, a liquid crystal display. Note that the display section 43 may be another display device. The operation input unit 44 is realized by a touch panel. Note that the operation input unit 44 can also be implemented using a physical operator such as a button instead of a touch panel.

The communication unit 42 performs long-distance communication with the communication unit 34 of the management device 30, as described above. Further, the communication unit 42 performs short-range wireless communication such as non-contact communication with the RFID card 200. The communication unit 42 acquires the identification ID of the worker WO through communication with the RFID card 200. The communication unit 42 outputs the identification ID of the worker WO to the control unit 41. Furthermore, the communication unit 42 associates the entry/exit information with the identification ID of the worker WO and transmits it to the communication unit 34 of the management device 30.

The control unit 41 performs overall control of the worker passage management device 40. Further, when the worker WO leaves the room, the control unit 41 uses the identification ID to inquire of the management device 30 whether there is a question. The control unit 41 generates a question and answer image from the question received via the communication unit 42 and outputs it to the display unit 43. The control unit 41 associates the answer input using the operation input unit 44 with the question and outputs it to the communication unit 42 .

(Specific method for updating the state model)
FIG. 3 is a diagram showing a specific process group of the state management process executed by the calculation unit 31. As shown in FIG. 3, the state management process includes a state abnormality determination process, a question implementation determination process, a question generation process, a transmission/reception process, and a state model update process.

The state abnormality determination process compares sensing data with a threshold value to determine a state abnormality. In addition, in the state abnormality determination process, past sensing data and current sensing data are compared to determine whether or not the current sensing data has specificity. If a state abnormality is determined, or if it is determined that there is a specificity, a question implementation determination process is executed.

In the question implementation determination process, it is determined whether or not to ask a question, depending on the determined type of status abnormality. For example, in the question implementation determination process, if the determined state abnormality is effective for updating the state model, it is determined that the question should be performed. For example, the question implementation determination process determines that the question should be asked if there is an urgency. Further, in the question implementation determination process, if the sensing data has specificity, it is determined that the question is to be asked. If it is determined that the question is to be asked, question generation processing is executed.

The question generation process generates a question asking the worker WO whether or not the determined state abnormality has actually occurred. In addition, the question generation process generates a question asking the worker WO what happened when the sensing data has specificity.

In the transmission/reception process, a question is sent to the worker passage management device 40, and an answer to the question is received from the worker passage management device 40.

In the state model update process, the state model is updated by learning whether the determination of the state abnormality was correct or not and what was happening when the sensing data caused the peculiarity, based on the answers.

(Specific explanation of the flow of updating the state model as the state management system 10)
(Processing in the attached device 20)
FIG. 4 is a flowchart showing the processing of the attached device.

For example, when the mounting device 20 performs pairing between the control section 21 and the RFID card 200, that is, when the control section 21 acquires the identification ID of the worker WO, in other words, when the control section 21 specifies the worker WO, Sensing is started (S21).

The mounting device 20 senses the state of the worker WO (S22). The attached device 20 determines whether the sensing data is to be transmitted (S23). This determination is made based on whether or not the transmission conditions are met, as described above.

If the sensing data is not to be transmitted (S24: NO), the mounted device 20 continues sensing the state without transmitting the sensing data (S22).

If the sensing data is to be transmitted (S24: YES), the mounted device 20 transmits this sensing data to the management device 30 (S24). At this time, the mounted device 20 associates the identification ID of the worker WO who acquired the sensing data and the time of occurrence with the sensing data, and transmits the data to the management device 30 .

The mounting device 20 repeats the above-described process until it receives a sensing end trigger (S25: NO). When the mounting device 20 obtains a sensing end trigger (S25: YES), it ends sensing. The sensing end trigger can occur, for example, when the exit of the worker WO is detected via the RFID card 200.

(Processing by management device 30)
FIG. 5 is a flowchart showing the processing of the management device.

The management device 30 receives sensing data from the attached device 20 (S31). The management device 30 uses the sensing data to determine an abnormal state (S32). For example, as described above, the determination of the abnormal state is performed based on the comparison result between the threshold value for the abnormal state and the sensing data.

The management device 30 determines whether or not the determined abnormal state is the subject of the question. More specifically, the management device 30 selects questions that are effective for learning the state model. For example, if the sensing data determined to be abnormal has a different trend compared to past sensing data, is similar to sensing data that was incorrectly determined in the past, or if the abnormality determination is close to the threshold value and reliable. If the gender is low, it is determined that the question should be asked. Furthermore, as described above, if the sensing data has specificity, the management device 30 determines that the question should be asked.

Furthermore, the management device 30 detects the identification ID of the worker WO associated with the sensing data having abnormality or specificity. The management device 30 uses the identification ID of the worker WO to determine whether or not to ask a question. More specifically, the management device 30 determines whether or not to ask questions so that questions are not concentrated on a specific worker WO. For example, if the management device 30 finds out that a specific worker WO is asked questions every day, it will not ask questions that day. Furthermore, the management device 30 limits the number of questions asked to one worker at a time. For example, the management device 30 selects the frequency of questions to one worker so that the number of questions is limited to about once a day or once a week. At this time, the management device 30 sets, for example, levels of importance to a plurality of types of status abnormalities, and makes settings such that questions regarding status abnormalities with high degrees of importance are given priority. Thereby, the status management system 10 can efficiently collect responses and reduce the burden of responding to the worker WO.

Furthermore, the management device 30 determines whether or not questions should be asked, taking into consideration the temporal density so as not to cause crowding of workers in the worker passage management device 40. For example, after displaying a question to a certain worker once, the management device 30 does not question another worker for 3 minutes. Thereby, it is possible to prevent a plurality of workers from having to answer at the same time, so it is possible to avoid crowding of workers at the worker passage management device 40 and reduce the burden on the entire work site.

When the management device 30 determines that the question is not to be asked (S33: NO), the management device 30 determines whether the next sensing data is abnormal and whether or not it is the subject of the question.

When the management device 30 determines to ask a question (S33: YES), it generates a question (S34). As described above, the questions include inquiries about whether the determined state abnormality actually occurred to the worker WO, and about the state of the worker WO when sensing data with specificity occurred. At this time, it is preferable to generate a question that includes the time of occurrence so that it is easy for the worker WO to understand.

The management device 30 transmits the question and the identification ID of the worker WO to whom the question is asked to the worker passage management device 40 (S35).

The management device 30 receives the answer to the question from the worker passage management device 40 (S36).

The management device 30 updates the state model based on the answer (S37). For example, if the management device 30 obtains a response that the determined abnormal state is actually occurring in the worker WO, the management device 30 reflects this in the state model so as to increase the accuracy of this determination. On the other hand, if the management device 30 receives a response that the determined abnormal state has not actually occurred to the worker WO, it reflects this in the state model so as to lower the accuracy of this determination. Further, if the management device 30 obtains an event that occurred to the worker WO in response to sensing data having specificity as an answer, the management device 30 associates the sensing data having specificity with the corresponding event and causes the state model to learn. .

Thereby, the management device 30 can use the sequentially updated state models to more accurately determine the occurrence of a state abnormality or a corresponding event based on sensing data.

(Processing by worker passage management device 40)
FIG. 6 is a flowchart showing a first example of processing by the worker passage management device. FIG. 7 is a diagram showing an example of a question and answer image.

When the worker passage management device 40 receives the exit processing from the worker WO (S41: YES), it transmits the exit record to the management device 30 and inquires of the management device 30 whether there are any questions (S42). ).

If there is a question, the worker passage management device 40 receives the question from the management device 30 (S43). The worker passage management device 40 generates and displays a question and answer image 430 based on the received question (S44).

As shown in FIG. 7, the question and answer image 430 includes a question presentation section 431 and an answer selection section 432. The question presentation section 431 displays the question received from the management device 30. The answer selection section 432 displays multiple answers to the question in a selective manner.

When the worker WO leaves, the worker WO visually recognizes the question and answer image 430 on the display section 43 of the worker passage management device 40, and selects an answer using the operation input section 44, which is a touch panel, for example.

The worker passage management device 40 receives the answer by detecting the selection of the answer (S45). The worker passage management device 40 transmits the reply to the management device 30.

By using the configuration and processing as described above, the state management system 10 can easily obtain answers for updating the state model from the worker WO.

In the above configuration, the worker passage management device 40 uses the identification ID of the worker WO to inquire the management device 30 about questions. However, as shown below, it is also possible to omit the process in which the worker passage management device 40 makes inquiries to the management device 30.

FIG. 8 is a flowchart showing a second example of the processing of the worker passage management device. Note that the process in the flowchart shown in FIG. 8 differs from the process in the flowchart shown in FIG. 7 only in the process related to reception of questions. The other processes in the flowchart shown in FIG. 8 are the same as those in the flowchart shown in FIG. 7, and a description of similar parts will be omitted.

The worker passage management device 40 receives and stores the question generated by the management device 30 (S400). When the worker passage management device 40 acquires the identification ID of the worker WO through the exit process, it detects whether a question corresponding to the identification ID is stored. If there is a question corresponding to the identification ID (S401: YES), the worker passage management device 40 generates and displays a question and answer image 430 (S44).

With such a configuration, the worker passage management device 40 can omit the process of inquiring the management device 30 about questions, and can present the question and answer image 430 to the worker WO more quickly. In addition, in the case of the above-mentioned method of inquiring questions, the worker passage management device 40 does not need to store the questions in advance, and resources can be used effectively.

Furthermore, in the above description, the manner in which the worker passage management device 40 receives responses was shown. However, for example, if the information communication terminal held by the worker WO and the worker passage management device 40 or the management device 30 can communicate, it is possible to send questions to the information communication terminal and receive answers from the information communication terminal. is also possible.

Furthermore, in the above description, the RFID card 200 was used to accept entry and exit, that is, to determine whether or not a question was asked, and to trigger the display. However, since the mounting device 20 has a function of communicating with the worker passage management device 40, the RFID card 200 can be omitted and the mounting device 20 can be used for the various triggers described above.

10: State management system 20: Mounted device 21: Control section 22: Communication section 23: Sensor 30: Management device 31: Computation section 32: State model DB
33: Entrance/exit management DB
34: Communication section 40: Worker passage management device 41: Control section 42: Communication section 43: Display section 44: Operation input section 90: Site 91: Building 200: RFID card 300: Data bus 430: Question and answer image 431: Question presentation section 432: Answer selection section 900: Gate

Claims (10)

A sensor that senses the condition of the worker,
a state abnormality determining unit that determines whether the worker's state is abnormal based on a state model that indicates a relationship between the sensing result and the abnormal state;
a question generation unit that generates a question in response to the determined abnormal state;
a question presentation unit that is provided at a location that the worker can recognize and presents the question;
an answer reception unit that is provided at a location that can be operated by the worker and receives answers to the questions;
a question implementation determination unit that determines whether or not to transmit the question based on the number of times the question has been asked to the worker in the past;
A state management system. The question generation unit generates the question when a determination of a state abnormality necessary for updating the state model is obtained.
The state management system according to claim 1. The state abnormality necessary for updating the state model includes a state abnormality that has specificity with respect to the past sensing result.
The state management system according to claim 2. a state model updating unit that updates the state model based on the answer;
A state management system according to any one of claims 1 to 3. a worker-worn device comprising the sensor;
a management device comprising the state abnormality determination unit, the question generation unit, and the state model update unit;
A worker passage management device comprising the question presenting section and the answer accepting section;
The state management system according to claim 4, comprising: The worker-worn device includes:
a communication unit that transmits the sensing results to the management device;
a selection unit that selects the sensing result to be transmitted by the communication unit;
The state management system according to claim 5, comprising: a worker-worn device executes a sensing step for sensing a state of the worker;
The management device
a state abnormality determination step of determining the state abnormality of the worker based on a state model showing a relationship between the sensing result and the state abnormality;
a question generation step for generating a question for the determined abnormal state;
a question implementation determination step of determining whether or not to send the question based on the number of past questions to the worker;
Run
A worker passage management device provided at a location that is recognizable and operable by the worker,
a question presenting step of presenting the question;
an answer accepting step of accepting an answer to the question ;
execute ,
State management method. The management device includes:
As the question generation step, the question is generated when a determination result of a state abnormality necessary for updating the state model is obtained.
The state management method according to claim 7. The state abnormality necessary for updating the state model includes a state abnormality that has specificity with respect to the past sensing result.
The state management method according to claim 8. The management device includes:
further performing a state model update step of updating the state model based on the answer;
A state management method according to any one of claims 7 to 9.

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