Injury estimation system, injury estimation method, and injury estimation program

Abstract

To provide an injury estimation system, an injury estimation method, and an injury estimation program capable of improving accuracy in estimation of an injury to a human body.SOLUTION: An injury estimation system according to the embodiment is an injury estimation system for estimating an injury to a human body by using a human body model and a contact object model, and includes: a database that stores, in association with each other, human body information, contact object information, and injury information about the human body generated in contact between the human body and a contact object; a human body model generation unit that generates the human body model by using the human body information; a contact object model generation unit that generates the contact object model by using the contact object information; a reproduction unit that reproduces a result of an injury to the human body by using the human body model and the contact object model; a correction unit that corrects the human body model and the contact object model based on the injury information indicated by the reproduced result of the injury to the human body and the injury information about the human body stored in the database; and an estimation unit that estimates the injury to the human body by using the corrected human body model and the corrected contact object model.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an injury estimation system, an injury estimation method, and an injury estimation program. [Background technology]

[0002] Patent Document 1 discloses a technology for evaluating the degree of harm to the human body in situations that may occur during the use of equipment, focusing on the maximum impact load when a human body model collides with equipment. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-070301 A Summary of the Invention [Problem to be solved by the invention]

[0004] The method of Patent Document 1 evaluates the degree of harm based on an impact load. However, since the degree of harm can also be affected by factors other than the impact load, a more accurate evaluation method has been desired.

[0005] The present invention has been made to solve such problems, and aims to provide an injury estimation system, an injury estimation method, and an injury estimation program that can improve the accuracy of estimating injuries to the human body. [Means for solving the problem]

[0006] An injury estimation system according to one aspect of the present invention includes: An injury estimation system that estimates an injury to a human body by using a human body model and a contact object model, comprising: a database that stores human body information related to the human body, contacting object information related to a contacting object, and injury information of the human body caused by contact between the human body and the contacting object in association with each other; a human body model generation unit that generates the human body model using the human body information stored in the database; a contact object model generating unit that generates the contact object model by using the contact object information stored in the database; a reproduction unit that reproduces an injury result of the human body by using the human body model and the contact object model; a correction unit that corrects the human body model and the contact object model based on injury information indicated by the reproduced injury result of the human body and injury information of the human body stored in the database; The apparatus further includes an estimation unit that estimates injury to the human body using the corrected human body model and the corrected contact object model.

[0007] A method for estimating injury according to one aspect of the present invention includes: 1. An injury estimation method for estimating an injury to a human body by using a human body model and a contact object model, comprising: generating the human body model using human body information in a database that stores human body information on the human body, contacting object information on a contacting object, and injury information on the human body caused by contact between the human body and the contacting object in association with each other; generating the contact object model using the contact object information stored in the database; Reproducing an injury result of the human body using the human body model and the contact object model; modifying the human body model and the contact object model based on injury information indicated by the reproduced injury result of the human body and injury information of the human body stored in the database; and estimating injury to the human body using the modified human body model and the modified contact object model.

[0008] An injury estimation program according to one aspect of the present invention includes: An injury estimation program for estimating an injury to a human body by using a human body model and a contact object model, comprising: generating the human body model using human body information in a database that stores human body information on the human body, contacting object information on a contacting object, and injury information on the human body caused by contact between the human body and the contacting object in association with each other; generating the contact object model using the contact object information stored in the database; Reproducing an injury result of the human body using the human body model and the contact object model; modifying the human body model and the contact object model based on injury information indicated by the reproduced injury result of the human body and injury information of the human body stored in the database; estimating an injury to the human body using the modified human body model and the modified contact object model; This is an injury estimation program for causing a computer to execute the above. Effect of the Invention

[0009] The present invention provides an injury estimation system, an injury estimation method, and an injury estimation program that can improve the accuracy of injury estimation on a human body. [Brief description of the drawings]

[0010] [Figure 1] 1 is a block diagram showing a configuration of an injury estimation system according to a first embodiment. [Diagram 2] 4 is a cross-sectional view showing a state in which a human body model and a contact object model contact each other according to the first embodiment. FIG. [Diagram 3] 3 is a flowchart showing an injury estimation method according to the first embodiment. [Figure 4] 1 is a block diagram illustrating an example of a hardware configuration of an injury estimation system according to a first embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings. However, the present invention is not limited to the following embodiments. In addition, the following description and drawings are appropriately simplified for clarity of explanation.

[0012] <First embodiment> An injury estimation system 100 according to a first embodiment will be described with reference to Fig. 1. As shown in Fig. 1, the injury estimation system 100 includes an injury estimation device 10 and a database 20. The injury estimation device 10 is connected to the database 20. The injury estimation device 10 includes a human body model generation unit 1, a contacting object model generation unit 2, a reproduction unit 3, a correction unit 4, and an estimation unit 5.

[0013] The injury estimation system 100 is a system that estimates an injury to a human body by using a human body model and a contact object model. The contact object is, for example, a nail, a saw, a press, etc. The contact object is not limited to these, and may be any object. The injury estimated by the injury estimation system 100 may be, for example, a specific symptom or disease name on the human body, such as a blister, internal bleeding, muscle tear, contusion, or fracture, or may be information on various parameters that constitute the injury.

[0014] The injury estimation device 10 is, for example, a computer device. The above-mentioned human body model and contacting object model are modeled on a computer by the injury estimation device 10. That is, the injury estimation system 100 uses the injury estimation device 10 to simulate contact between the human body model and the contacting object model on a computer, and estimates injury to the human body caused by contact between the human body and the contacting object.

[0015] In the injury estimation system 100, the accuracy of the human body model and the contacting object model can be improved by correcting the human body model and the contacting object model based on past injury information. This enables the injury estimation system 100 to improve the accuracy of injury estimation of the human body.

[0016] The database 20 stores human body information related to the human body, contacting object information related to the contacting object, and injury information on the human body caused by contact between the human body and the contacting object in association with each other. That is, the database 20 records human body information, contacting object information, and injury information in the case where an injury to the human body occurs due to contact between the human body and the contacting object.

[0017] The database 20 may be provided inside the injury estimation device 10, or may be provided outside the injury estimation device 10 as shown in Fig. 1. The database 20 may be provided on a cloud, for example.

[0018] The human body model generating unit 1 generates a human body model using human body information stored in the database 20. The human body model generating unit 1 generates the human body model in a virtual space on a computer.

[0019] The human body information is information about the characteristics of the human body, including parameters necessary for modeling the human body, such as age, sex, body part, mass, elasticity, viscosity, etc. of the target human body.

[0020] For example, in general, the epidermis of a human body between 0 and 10 years old is softer than that of a human body between 50 and 60 years old. In other words, since the characteristics of the human body change with age, age, for example, can be used as a parameter of the human body model. Specifically, as age increases, a parameter indicating the elasticity of the human body model may be changed to become higher elasticity. Similarly, as age decreases, a parameter indicating the elasticity of the human body model may be changed to become lower elasticity.

[0021] In addition, in general, men have more muscle mass than women. In other words, gender can be used as a parameter of the human body model. Specifically, the elasticity parameter of a male human body model may be set to be higher than that of a female human body model. As described above, the human body model generating unit 1 can improve the accuracy of the generated human body model by adjusting various parameters based on the characteristics of the target human body.

[0022] The contacting object information is information about the characteristics of the contacting object, and includes parameters necessary for modeling the contacting object. For example, the contacting object information includes information about the shape, material, etc. of the contacting object. The material of the contacting object includes, for example, the mass, elasticity, viscosity, etc. of the contacting object.

[0023] The injury information includes, for example, information about the shape, contact area, or chamfer amount of a contact area of ​​a human body with a contact object, but is not limited to these, and may include information about other parameters, specific symptoms, or disease names.

[0024] Furthermore, information on the situation of an injury caused by contact between the human body and a contact object, such as information on the speed and acceleration of the contact between the human body and the contact object, and information on the contact angle between the human body and the contact object, may be recorded in the database 20. This information on the contact situation can be used as the contact conditions used when reproducing the contact between the human body model and the contact object model.

[0025] The human body model may include a biological model related to a human body and a protective equipment model related to a protective equipment to be worn on the human body. The human body model generation unit 1 can generate the biological model using parameters such as age, sex, body part, mass, elasticity, and viscosity, similar to the human body model.

[0026] For example, when the biological model is a biological model of a human hand, in order to improve the accuracy of the biological model, it is preferable that the biological model includes parameters related to the friction force on the surface of the human hand, the slipperiness on the surface of the human hand, the amount of fat on the human hand, the amount of muscle on the human hand, or the bones of the human hand. In other words, the injury estimation system 100 can more accurately estimate an injury to the human hand by using a biological model having these parameters when a contact object contacts the human hand.

[0027] Protective equipment is equipment used to protect a living body, such as gloves, safety shoes, face masks, and clothing including work clothes. Protective equipment information is information on the characteristics of protective equipment, and includes parameters required for modeling the protective equipment. Protective equipment information is information on mass, elasticity, viscosity, and the like. The human body model generation unit 1 can generate a protective equipment model using the protective equipment information.

[0028] The protective equipment information may be recorded together with the human body information in the database 20, or may be recorded in a separate database for protective equipment. These biological models and protective equipment models are generated in a virtual space on a computer by the human body model generation unit 1.

[0029] The contacting object model generating unit 2 generates a contacting object model using the contacting object information stored in the database 20. Like the human body model, the contacting object model is also generated in a virtual space on a computer.

[0030] For example, if the tip of the contacting object is sharp, the degree of injury will be greater. Also, for example, if the diameter of the contacting object is small, the pressure on the human body will be greater, and the degree of injury will be greater. Also, for example, if the contacting object is light and made of a soft material, the degree of injury will be smaller. On the other hand, if the contacting object is heavy and made of a hard material, the degree of injury will be greater. In other words, it is preferable that the contacting object model includes parameters related to the shape or material of the contacting object.

[0031] In other words, the contacting object model generating unit 2 can increase the accuracy of the contacting object model by generating the contacting object model taking into account the shape and material of the contacting object. The contact object model may include other parameters, such as a parameter related to the temperature of the contact object.

[0032] The reproduction unit 3 reproduces the injury results of the human body by using the human body model and the contacting object model. The reproduction unit 3 reproduces the injury results of the human body in the past by bringing the human body model into contact with the contacting object model under predetermined contact conditions such as the speed, acceleration, and contact angle of the contact between the human body and the contacting object stored in the database 20 as described above.

[0033] The correction unit 4 corrects the human body model and the contacting object model based on the injury information indicated by the reproduced human body injury result and the human body injury information stored in the database 20. When the injury information indicated by the reproduced human body injury result differs from the human body injury information stored in the database 20, the correction unit 4 corrects the human body model by changing the parameters of the human body model. Similarly, the correction unit 4 corrects the contacting object model by changing the parameters of the contacting object model.

[0034] In other words, the correction unit 4 compares the injury information indicated by the reproduced human body injury results with past injury information and corrects the human body model and the contacting object model, thereby improving the precision and accuracy of the human body model and the contacting object model.

[0035] When the human body model and the contacting object model are corrected by the correction unit 4, the reproduction unit 3 may reproduce the injury result of the human body again using the corrected human body model and the corrected contacting object model. After that, the human body model and the contacting object model may be corrected again by the correction unit 4. In other words, reproduction by the reproduction unit 3 and correction by the correction unit 4 may be repeated until the difference between the injury information indicated by the reproduced human body injury result and the injury information of the human body stored in the database 20 falls within a predetermined range. The correction unit 4 may correct only the human body model, or may correct only the contacting object model.

[0036] For example, the correction unit 4 may determine whether or not to perform correction depending on whether the difference between the shape of the reproduced human body in the contact area and the shape of the contact area stored in the database 20 is within a predetermined range. If the difference between the shape of the reproduced human body in the contact area and the shape of the contact area stored in the database 20 is outside the predetermined range, the correction unit 4 corrects the human body model and the contacting object model, and if the difference is within the predetermined range, the correction unit 4 does not correct the human body model and the contacting object model.

[0037] Similarly, for example, the correction unit 4 may determine whether or not to perform correction depending on whether the difference between the contact area of ​​the reproduced human body with the contact object and the contact area stored in the database 20 is within a predetermined range. The correction unit 4 corrects the human body model and the contact object model when the difference between the contact area of ​​the reproduced human body with the contact object and the contact area stored in the database 20 is outside the predetermined range, and does not correct the human body model and the contact object model when the difference is outside the predetermined range.

[0038] By correcting the human body model and the contacting object model, the injury estimation device 10 can generate an accurate human body model and a contacting object model, respectively, from which past injuries stored in the database 20 can be derived. The correction unit 4 may store the corrected human body model and the corrected contacting object model in the database 20. In this case, the estimation unit 5, which will be described later, can refer to the database 20 and use any target human body model and contacting object model.

[0039] The estimation unit 5 estimates injury to the human body using the modified human body model and the modified contacting object model. The accuracy and precision of the human body model and the contacting object model have been improved by the modification unit 4. Therefore, the estimation unit 5 can estimate injury to the human body by bringing the modified human body model and the modified contacting object model into contact under any contact condition. It should be noted that the combination of the human body model and the contacting object model is of course arbitrary, and the contact condition can also be changed arbitrarily.

[0040] The estimation unit 5 can bring the corrected human body model and the corrected contact object model into contact with each other in a virtual space on the computer, and estimate an injury to the human body. The estimation unit 5 can display the estimated injury to the human body via a display unit (not shown). For example, the estimation unit 5 can display the injury to the human body as a 3D map on the display unit. Furthermore, the estimation unit 5 can notify the user of specific symptoms or the name of the disease of the estimated injury to the human body.

[0041] Here, an outline of a method for reproducing an injury and a method for estimating an injury by the injury estimation system 100 will be described with reference to Fig. 2. Fig. 2 is a cross-sectional view showing a state of contact between a human body model 11 and a contact object model 21 according to the first embodiment.

[0042] The upper diagram in Fig. 2 shows a human body model 11 and a contacting object model 21. The human body model 11 is composed of a living body model 12 and a protective equipment model 13. An injury estimation device 10 in an injury estimation system 100 brings the human body model 11 and the contacting object model 21 into contact under a predetermined contact condition (middle diagram in Fig. 2). This enables the injury estimation system 100 to reproduce an injury to the human body using the human body model 11 and the contacting object model 21 (lower diagram in Fig. 2).

[0043] The injury estimation system 100 compares the injury information indicated by the reproduced injury result with past injury information stored in the database 20 and corrects the human body model 11 and the contacting object model 21, thereby improving the accuracy of the human body model 11 and the contacting object model 21.

[0044] 2, the injury estimation system 100 can estimate injury to the human body under any contact condition by bringing the corrected human body model 11 into contact with the corrected contacting object model 21. That is, the injury estimation system 100 according to this embodiment can improve the accuracy of injury estimation to the human body.

[0045] In addition, at a work site, there is a high risk of injury to the human body, especially to the hands, so injury estimation system 100 according to this embodiment can be suitably used for estimating injury to the human hand.

[0046] The estimation unit 5 may also use the corrected human body model and the corrected contact object model to estimate the position of the human body within 1 cm of the surface of the human body. 2 It is also possible to estimate injury to the human body when the human body comes into contact with a contact object in the above-mentioned regions. In other words, the injury estimation system 100 according to this embodiment can be suitably used to compare the degree of injury to the human body in any combination of the human body and the contact object.

[0047] Next, an injury estimation method according to a first embodiment will be described with reference to Fig. 3. Fig. 3 is a flowchart showing the injury estimation method according to the first embodiment. The injury estimation method according to the first embodiment is a method for estimating an injury to a human body by using a human body model and a contacting object model.

[0048] A human body model is generated using human body information in a database that stores human body information about a human body, contact object information about a contact object, and injury information on the human body caused by contact between the human body and the contact object in association with each other (step S1). Next, a contact object model is generated using the contact object information stored in the database (step S2). Note that the order of steps S1 and S2 may be reversed.

[0049] The human body model and the contacting object model are used to reproduce the injury result of the human body (step S3). Next, the human body model and the contacting object model are modified based on the injury information indicated by the reproduced injury result of the human body and the injury information of the human body stored in the database (step S4). After that, the modified human body model and the modified contacting object model are used to estimate the injury of the human body (step S5).

[0050] Note that steps S3 to S5 may be repeated. In the injury estimation method according to this embodiment, repeating steps S3 to S5 can further improve the accuracy of the human body model and the contacting object model.

[0051] According to the injury estimation system 100 and injury estimation method of the present embodiment, a human body model and a contacting object model are used to estimate injury to a human body in advance. This allows safety measures to be taken in advance at work sites and the like, and the extent of injury to the human body can be reduced. For example, the extent of injury to the human body can be reduced by changing protective equipment, changing the shape of a contacting object, reviewing work procedures, etc., based on injury to the human body estimated using the injury estimation system 100 and injury estimation method of the present embodiment.

[0052] In the injury estimation system 100 and injury estimation method of this embodiment, it may be possible to suggest safety measures such as changing protective equipment or changing the shape of a contacting object to improve safety depending on the estimated injury to the human body.

[0053] An example of a hardware configuration of the control device of the injury estimation system 100 according to the first embodiment will be described with reference to FIG. 4. The control device of the injury estimation system 100 has a processor 101 and a memory 102. The processor 101 may be, for example, a microprocessor, a micro processing unit (MPU), or a central processing unit (CPU). The processor 101 may include multiple processors. The memory 102 is configured by a combination of a volatile memory and a non-volatile memory. The memory 102 may include a storage located away from the processor 101. In this case, the processor 101 may access the memory 102 via an input / output interface not shown.

[0054] Furthermore, each device in the above-described embodiments may be configured with hardware or software, or both, and may be configured with one piece of hardware or software, or may be configured with multiple pieces of hardware or software. The functions (processing) of each device in the above-described embodiments may be realized by a computer. For example, a program for performing the operations in the embodiments may be stored in memory 102, and each function may be realized by executing the program stored in memory 102 by processor 101.

[0055] The injury estimation program of this embodiment is an injury estimation program that estimates injury to a human body using a human body model and a contacting object model, and causes a computer to execute the following steps: generating a human body model using human body information in a database that corresponds and stores human body information about the human body, contacting object information about the contacting object, and injury information on the human body caused by contact between the human body and the contacting object; generating a contacting object model using the contacting object information stored in the database; reproducing an injury result on the human body using the human body model and the contacting object model; modifying the human body model and the contacting object model based on the injury information indicated by the reproduced human injury result and the human injury information stored in the database; and estimating injury to the human body using the modified human body model and the modified contacting object model.

[0056] The program includes a set of instructions (or software code) that, when loaded into a computer, causes the computer to perform one or more functions described in the embodiments. The program may be stored in a non-transitory computer-readable medium or a tangible storage medium. By way of example and not limitation, the computer-readable medium or tangible storage medium includes random-access memory (RAM), read-only memory (ROM), flash memory, solid-state drive (SSD) or other memory technology, CD-ROM, digital versatile disk (DVD), Blu-ray® disk or other optical disk storage, magnetic cassette, magnetic tape, magnetic disk storage or other magnetic storage device. The program may be transmitted on a transitory computer-readable medium or communication medium. By way of example and not limitation, the transitory computer-readable medium or communication medium includes electrical, optical, acoustic, or other forms of propagated signals.

[0057] The present invention is not limited to the above-described embodiment, and can be modified as appropriate without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0058] 1. Human body model generation unit 2 Contact object model generation section 3. Recapitulation 4 Correction section 5 Estimation part 10 Injury estimation device 11 Human Body Model 12 Biological Models 13 Protective Equipment Model 20 Database 21 Contact object model 100 Injury Estimation System 101 Processor 102 Memory

Claims

1. 1. An injury estimation system that estimates injury to a human body caused by contact between the human body and a contact object by using a human body model and a contact object model, comprising: a database that stores, in association with each other, human body information including parameters of the human body model, contacting object information including parameters related to the shape or material of the contacting object, and injury information on the human body that occurs due to contact between the human body and the contacting object and includes information related to the shape, contact area, or chamfer amount of a contact area of ​​the human body with the contacting object; a human body model generation unit that generates the human body model that imitates the human body in a virtual space on a computer using the human body information stored in the database; a contact object model generation unit that generates the contact object model that imitates the contact object in the virtual space by using the contact object information stored in the database; a reproduction unit that brings the human body model and the contact object model into contact with each other in the virtual space and reproduces an injury result of the human body; a correction unit that corrects the human body model by changing parameters of the human body model included in the human body information so that a difference between injury information indicated by the reproduced injury result of the human body and injury information of the human body stored in the database falls within a predetermined range, and corrects the contacting object model by changing parameters related to a shape or a material of the contacting object included in the contacting object information; an estimation unit that brings the corrected human body model into contact with the corrected contact object model in the virtual space and estimates an injury to the human body; Injury Estimation System.

2. The human body model includes a biological body model relating to a human biological body and a protective equipment model relating to a protective equipment to be worn on the biological body, The injury estimation system according to claim 1 .

3. The biological model includes parameters related to a friction force on a surface of the hand of the human body, a smoothness on a surface of the hand of the human body, a fat amount of the hand of the human body, a muscle amount of the hand of the human body, or a bone of the hand of the human body. The injury estimation system according to claim 2 .

4. The human body model is a biological model of a human hand, The estimation unit estimates an injury to the hand of the human body. The injury estimation system according to any one of claims 1 to 3.

5. The estimation unit brings the corrected human body model into contact with the corrected contact object model in the virtual space, and estimates the human body within 1 cm ２ Estimating injury to the human body when the human body comes into contact with the contact object in the above-mentioned area. The injury estimation system according to any one of claims 1 to 4.

6. 1. An injury estimation method for estimating an injury to a human body caused by contact between the human body and a contact object, using a human body model and a contact object model, comprising: generating the human body model that imitates the human body in a virtual space on a computer using human body information in a database that stores, in association with each other, human body information including parameters of the human body model, contacting object information including parameters related to the shape or material of the contacting object, and injury information on the human body that occurs due to contact between the human body and the contacting object and includes information related to the shape, contact area, or chamfer amount of a contact area of ​​the human body with the contacting object; generating, in the virtual space, the contact object model that imitates the contact object using the contact object information stored in the database; bringing the human body model and the contact object model into contact with each other in the virtual space to reproduce an injury result of the human body; modifying the parameters of the human body model included in the human body information so that a difference between injury information indicated by the reproduced injury result of the human body and injury information of the human body stored in the database falls within a predetermined range, and modifying the contacting object model by changing parameters related to a shape or a material of the contacting object included in the contacting object information; bringing the corrected human body model into contact with the corrected contact object model in the virtual space, and estimating injury to the human body. Injury estimation method.

7. 1. An injury estimation program for estimating an injury to a human body caused by contact between the human body and a contact object by using a human body model and a contact object model, comprising: generating the human body model that imitates the human body in a virtual space on a computer using human body information in a database that stores, in association with each other, human body information including parameters of the human body model, contacting object information including parameters related to the shape or material of the contacting object, and injury information on the human body that occurs due to contact between the human body and the contacting object and includes information related to the shape, contact area, or chamfer amount of a contact area of ​​the human body with the contacting object; generating, in the virtual space, the contact object model that imitates the contact object using the contact object information stored in the database; bringing the human body model and the contact object model into contact with each other in the virtual space to reproduce an injury result of the human body; modifying the parameters of the human body model included in the human body information so that a difference between injury information indicated by the reproduced injury result of the human body and injury information of the human body stored in the database falls within a predetermined range, and modifying the contacting object model by changing parameters related to a shape or a material of the contacting object included in the contacting object information; a step of bringing the modified human body model into contact with the modified contact object model in the virtual space and estimating injury to the human body; An injury estimation program for causing a computer to execute the above.

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