Position determination device, position determination method, and program
The position determination device automates the placement of optical fibers inside vehicles using simulation, reducing the need for traditional sensors and lowering vehicle costs and weight by integrating with LAN and power lines.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- NEC CORP
- Filing Date
- 2024-12-13
- Publication Date
- 2026-06-25
AI Technical Summary
Determining the optimal placement of optical fibers for sensing vibrations and temperatures inside a vehicle manually is labor-intensive and inefficient, making it difficult to eliminate the need for traditional sensors like G-sensors and temperature sensors.
A position determination device and method that uses simulation units to determine the installation positions of optical fibers based on simulated vibration and temperature data, eliminating the need for manual intervention.
Enables the automated determination of optical fiber placement within vehicles, reducing the need for traditional sensors, lowering power consumption and costs, and integrating optical fibers with vehicle LAN and power lines to reduce weight and further costs.
Smart Images
Figure 2026103959000001_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a positioning device, a positioning method, and a program.
Background Art
[0002] In recent years, a technology called optical fiber sensing that uses an optical fiber as a sensor has attracted attention. Optical fiber sensing is mainly realized by an optical fiber and a sensing device connected to the optical fiber.
[0003] The sensing device transmits pulsed light to the optical fiber and receives backscattered light with respect to the pulsed light from the optical fiber. The sensing device uses the backscattered light received from the optical fiber to sense vibrations, sounds, temperatures, etc. at each position on the optical fiber. For example, Patent Document 1 discloses a technology for sensing temperature by optical fiber sensing.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] By the way, in recent years, inside a vehicle, an ECU (Electronic Control Unit) is provided for each function such as engine control and automatic brake control, and a plurality of ECUs are connected to each other via an in-vehicle LAN (Local Area Network). Also, inside the vehicle, sensors such as a G-sensor and a temperature sensor are connected to a LAN cable for the in-vehicle LAN or an ECU in order to measure vibrations and temperatures, etc.
[0006] However, as mentioned above, vibration and temperature can be sensed using optical fiber sensing. Therefore, if optical fibers and sensing equipment are installed inside the vehicle and vibration and temperature are sensed using optical fiber sensing, sensors such as G sensors and temperature sensors become unnecessary. Furthermore, eliminating the need for these sensors makes it possible to reduce the power consumption and cost of the vehicle.
[0007] However, in order to accurately sense vibrations, temperature, etc., using optical fiber sensing inside a vehicle, the placement of the optical fiber is crucial. However, determining the placement of optical fiber inside a vehicle manually would require a significant amount of labor.
[0008] Therefore, in view of the above-mentioned problems, the purpose of this disclosure is to provide a position determination device, a position determination method, and a program that can determine the installation position of optical fibers inside a vehicle without manual intervention. [Means for solving the problem]
[0009] A position determination device according to one embodiment is: A first simulation means for simulating vibrations and temperature inside a vehicle, The system includes a position determination means that determines the installation position of an optical fiber to be installed inside the vehicle in order to sense vibration and temperature inside the vehicle, using the simulation results of vibration and temperature inside the vehicle simulated by the first simulation means.
[0010] A position determination method according to one embodiment is: A position determination method performed by a position determination device, A first simulation step simulates vibrations and temperature inside the vehicle, The process includes a positioning step of determining the position of an optical fiber to be installed inside the vehicle to sense vibrations and temperature inside the vehicle, using the simulation results of vibrations and temperature inside the vehicle, which were simulated by the first simulation step.
[0011] A program according to one aspect is: On the computer, A first simulation procedure that simulates vibration and temperature inside the vehicle, Using the simulation results of vibration and temperature inside the vehicle, which were simulated by the first simulation procedure, a position determination procedure is performed to determine the position of optical fibers to be installed inside the vehicle in order to sense vibration and temperature inside the vehicle. [Effects of the Invention]
[0012] According to the above-described embodiment, the effect is obtained that a position determination device, a position determination method, and a program can be provided that can determine the installation position of optical fibers inside a vehicle without human intervention. [Brief explanation of the drawing]
[0013] [Figure 1] This is a block diagram showing an example configuration of the positioning device relating to this disclosure. [Figure 2] This diagram illustrates an example of the installation location of sensing optical fibers inside vehicle B, which is different from vehicle A. [Figure 3] This diagram illustrates an example of the installation location of sensing optical fibers inside vehicle A. [Figure 4] This figure illustrates examples of simulation results for vibration and temperature near the engine inside vehicle B, and for vibration and temperature near the auxiliary battery inside vehicle B, as simulated by the first simulation unit relating to this disclosure. [Figure 5]FIG. 0 is a diagram for explaining an example of simulation results of vibration and temperature inside vehicle A simulated by the first simulation unit according to the present disclosure. [Figure 6] FIG. 3 is a flowchart for explaining an example of the operation flow of the positioning device according to the present disclosure. [Figure 7] FIG. 6 is a diagram for explaining an example of other installation positions of the sensing optical fiber inside vehicle A. [Figure 8] FIG. 9 is a block diagram showing a configuration example of the positioning device according to the present disclosure. [Figure 9] FIG. 12 is a diagram for explaining an example of simulation results of sensing results of vibration and temperature for each of a plurality of installation position candidates of the sensing optical fiber inside vehicle A simulated by the second simulation unit according to the present disclosure. [Figure 10] FIG. 15 is a flowchart for explaining an example of the operation flow of the positioning device according to the present disclosure. [Figure 11] FIG. 18 is a block diagram showing a hardware configuration example of a computer that realizes the positioning device according to the present disclosure.
MODE FOR CARRYING OUT THE INVENTION
[0014] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. For the sake of clarity of explanation, the following description and drawings are appropriately omitted and simplified. Also, in each of the following drawings, the same elements are denoted by the same reference numerals, and redundant explanations are omitted as necessary.
[0015] <Embodiment 1> First, the configuration of the positioning device 10 according to the present disclosure will be described. FIG. 1 is a block diagram showing a configuration example of the positioning device 10 according to the present disclosure. Hereinafter, the positioning device 10 is assumed to determine the installation position of the sensing optical fiber 20 installed to sense vibration and temperature inside vehicle A (see FIG. 3 described later), which is an EV (Electric Vehicle). As shown in Figure 1, the position determination device 10 includes a first simulation unit 11 and a position determination unit 12.
[0016] The first simulation unit 11 simulates vibrations and temperature inside vehicle A. In this case, if the first simulation unit 11 has already performed simulations of vibration and temperature inside other vehicles different from vehicle A, it may store those simulation results. Then, the first simulation unit 11 may use the simulation results of vibration and temperature inside other vehicles to simulate the vibration and temperature inside vehicle A.
[0017] Figure 2 illustrates an example of the installation location of the sensing optical fiber 20 inside vehicle B, which is different from vehicle A. As shown in Figure 2, vehicle B is an engine-powered vehicle. Inside vehicle B, an engine 31 is mounted at the front and an auxiliary battery 32 is mounted at the rear. Sensing optical fibers 20 are installed so as to be wrapped around both the engine 31 and the auxiliary battery 32.
[0018] Here, it is assumed that the first simulation unit 11 has already performed a simulation of vibration and temperature near the engine 31 inside vehicle B, and has stored the simulation results. More specifically, it is assumed that the first simulation unit 11 has already performed a simulation of sensing results when sensing vibration and temperature near the engine 31 using a sensing optical fiber 20 installed on the engine 31 inside vehicle B, and has stored the simulation results.
[0019] Furthermore, the first simulation unit 11 has already performed simulations of vibration and temperature near the auxiliary battery 32 inside vehicle B, and has accumulated the simulation results. Specifically, the first simulation unit 11 has already performed simulations of sensing results when sensing vibration and temperature near the auxiliary battery 32 using a sensing optical fiber 20 installed in the auxiliary battery 32 inside vehicle B, and has accumulated the simulation results.
[0020] In this case, the first simulation unit 11 may use at least one of the simulation results of vibration and temperature near the engine 31 inside vehicle B, and the simulation results of vibration and temperature near the auxiliary battery 32 inside vehicle B, to simulate vibration and temperature inside vehicle A.
[0021] Furthermore, the first simulation unit 11 has not yet simulated the vibration and temperature near the center of the vehicle's longitudinal direction inside vehicle B. In this case, the first simulation unit 11 may use artificial intelligence (AI) or the like to generate and supplement data indicating the vibration and temperature near the center of the vehicle's longitudinal direction inside vehicle B. Then, the first simulation unit 11 may use the data supplemented using artificial intelligence or the like to simulate the vibration and temperature inside vehicle A.
[0022] The position determination unit 12 uses the simulation results of vibration and temperature inside vehicle A, which have been simulated by the first simulation unit 11, to determine the installation position of the sensing optical fiber 20 inside vehicle A. Figure 3 illustrates an example of the installation location of the sensing optical fiber 20 inside vehicle A.
[0023] Here, we will explain the operation of the first simulation unit 11 and the position determination unit 12 with specific examples. Figure 4 illustrates examples of simulation results for vibration and temperature near the engine 31 inside vehicle B, and for vibration and temperature near the auxiliary battery 32 inside vehicle B, as simulated by the first simulation unit 11 according to this disclosure.
[0024] Figure 4 shows the simulation results of vibration intensity and temperature at various positions in the vehicle width direction of vehicle B, at arbitrary positions in the longitudinal direction of vehicle B near the engine 31 inside vehicle B. The first simulation unit 11 accumulates simulation results as shown in Figure 4 at predetermined positional intervals in the longitudinal direction of vehicle B near the engine 31 inside vehicle B.
[0025] Furthermore, Figure 4 shows the simulation results of vibration intensity and temperature at various positions in the vehicle width direction of vehicle B, at arbitrary positions in the longitudinal direction of vehicle B near the auxiliary battery 32 inside vehicle B. The first simulation unit 11 accumulates simulation results as shown in Figure 4 at predetermined positional intervals in the longitudinal direction of vehicle B near the auxiliary battery 32 inside vehicle B.
[0026] In Figure 4, the horizontal axis represents the position of vehicle B in the vehicle width direction, and both ends of the horizontal axis correspond to the ends of vehicle B's body in the vehicle width direction. The vertical axis represents the vibration intensity or temperature at each position in the vehicle width direction of vehicle B.
[0027] The first simulation unit 11 simulates the vibration and temperature inside vehicle A using the simulation results of vibration and temperature inside vehicle B as shown in Figure 4. At this time, the first simulation unit 11 may also simulate the vibration and temperature inside vehicle A using at least one of the simulation results of vibration and temperature near the engine 31 inside vehicle B, and the simulation results of vibration and temperature near the auxiliary battery 32 inside vehicle B.
[0028] Figure 5 illustrates an example of simulation results of vibration and temperature inside vehicle A, simulated by the first simulation unit 11 according to this disclosure.
[0029] Figure 5 shows the simulation results of vibration intensity and temperature at various positions in the vehicle width direction of vehicle A, at arbitrary positions in the longitudinal direction of vehicle A. The first simulation unit 11 obtains the simulation results shown in Figure 5 at predetermined positional intervals in the longitudinal direction of vehicle A.
[0030] In Figure 5, the horizontal axis represents the position of vehicle A in the vehicle width direction, and both ends of the horizontal axis correspond to the ends of vehicle A's body in the vehicle width direction. The vertical axis represents the vibration intensity or temperature of vibration at each position in the vehicle width direction of vehicle A.
[0031] The position determination unit 12 determines the installation position of the sensing optical fiber 20 for sensing vibration and temperature at each predetermined positional interval in the longitudinal direction of the vehicle inside vehicle A, based on the simulation results shown in Figure 5.
[0032] Here, the sensing optical fiber 20 is installed inside vehicle A, along the width direction of vehicle A, and over its entire length in the width direction. Therefore, the position determination unit 12 determines the installation position of the sensing optical fiber 20 in the vehicle's longitudinal direction and vehicle height direction. As a result, the installation position of the sensing optical fiber 20 inside vehicle A, as determined by the position determination unit 12, is as shown in the example in Figure 3.
[0033] Next, we will explain the operation flow of the position determination device 10 related to this disclosure. Figure 6 is a flowchart illustrating an example of the operation flow of the position determination device 10 according to this disclosure.
[0034] As shown in Figure 6, first, the first simulation unit 11 simulates vibrations and temperature inside vehicle A (step S101). Subsequently, the position determination unit 12 uses the simulation results of vibration and temperature inside vehicle A, which were simulated by the first simulation unit 11, to determine the installation position of the sensing optical fiber 20 inside vehicle A (step S102).
[0035] As described above, according to this embodiment 1, the first simulation unit 11 simulates vibrations and temperature inside the vehicle A. The position determination unit 12 uses the simulation results of vibrations and temperature inside the vehicle A to determine the installation position of the sensing optical fiber 20 inside the vehicle A. This makes it possible to determine the installation position of the sensing optical fiber 20 inside the vehicle A without manual intervention.
[0036] Here, we will describe other installation locations for the sensing optical fiber inside vehicle A. Figure 7 illustrates an example of another installation location for sensing optical fibers inside vehicle A.
[0037] As shown in Figure 7, in the related technology, multiple sensors 43, such as G sensors and temperature sensors, were provided inside vehicle A to measure vibration and temperature. In addition, multiple ECUs 33, each provided for a specific function, were connected to each other via LAN cables 42 and power lines 41 for the in-vehicle LAN. Furthermore, multiple sensors 43 were connected to LAN cables 42 and power lines 41 for the in-vehicle LAN.
[0038] In contrast, in this disclosure, sensing optical fiber 20 and sensing equipment 35 are provided inside vehicle A, and vibration and temperature are sensed by optical fiber sensing. This eliminates the need for multiple sensors 43. As a result, it becomes possible to reduce the power consumption and cost of vehicle A.
[0039] Furthermore, in this disclosure, multiple ECUs 33 are connected to each other via a multi-core optical fiber cable 34 containing power lines 41, sensing optical fibers 20, communication optical fibers (not shown), etc. This makes it possible to reduce the weight of vehicle A and to further reduce costs.
[0040] Therefore, in this disclosure, inside vehicle A, the sensing optical fiber 20 will be installed not only at the installation location determined by the position determination unit 12, but also at the installation location where the LAN cable 42 and power line 41 for the in-vehicle LAN were installed in related technologies.
[0041] <Embodiment 2> First, the configuration of the positioning device 10X related to this disclosure will be described. Figure 8 is a block diagram showing an example configuration of the position determination device 10X according to this disclosure. In the following description, the position determination device 10X will determine the installation position of the sensing optical fiber 20 inside the vehicle A, similar to Embodiment 1 described above. As shown in Figure 8, the position determination device 10X comprises a first simulation unit 11X, a second simulation unit 13X, and a position determination unit 12X.
[0042] The first simulation unit 11X is the same as the first simulation unit 11. That is, the first simulation unit 11X simulates vibrations and temperature inside vehicle A in the same manner as the first simulation unit 11.
[0043] The second simulation unit 13X simulates the sensing results when vibrations and temperature inside vehicle A are sensed using the sensing optical fiber 20 installed at each of the multiple candidate installation locations for the sensing optical fiber 20 inside vehicle A.
[0044] The position determination unit 12X uses the simulation results of vibration and temperature inside vehicle A, simulated by the first simulation unit 11X, and the simulation results of vibration and temperature sensing results for each of the multiple installation position candidates inside vehicle A, simulated by the second simulation unit 13X, to determine the installation position of the sensing optical fiber 20 from among the multiple installation position candidates.
[0045] Specifically, the position determination unit 12X selects the installation location for the sensing optical fiber 20 from among multiple installation location candidates, which is the installation location where the simulation result from the second simulation unit 13X is most similar to the simulation result from the first simulation unit 11X.
[0046] Here, the operation of the second simulation unit 13X and the position determination unit 12X will be explained with specific examples. In the following, it will be assumed that the first simulation unit 11X obtains simulation results as shown in Figure 5 for each predetermined positional interval in the longitudinal direction of vehicle A, as simulation results of vibration and temperature inside vehicle A.
[0047] Figure 9 illustrates an example of simulation results of vibration and temperature sensing results for multiple candidate installation locations of the sensing optical fiber 20 inside vehicle A, as simulated by the second simulation unit 13X according to this disclosure.
[0048] Figure 9 shows the simulation results of vibration intensity and temperature sensing at each position in the vehicle width direction of vehicle A, at the same positions as in Figure 5 in the longitudinal direction of vehicle A, for each of the candidate installation positions 1 and candidate installation position 2 of the sensing optical fiber 20 inside vehicle A. The second simulation unit 13X obtains simulation results for each of the candidate installation positions 1 and candidate installation position 2 shown in Figure 9 at predetermined positional intervals in the longitudinal direction of vehicle A.
[0049] In Figure 9, the horizontal axis represents the position of vehicle A in the width direction, and both ends of the horizontal axis correspond to the ends of vehicle A's body in the width direction. The vertical axis represents the vibration intensity or temperature of vibration at each position in the width direction of vehicle A.
[0050] The position determination unit 12X determines the installation position of the sensing optical fiber 20 for sensing vibration and temperature at predetermined positional intervals in the longitudinal direction of the vehicle inside vehicle A, based on the simulation results shown in Figure 9, from among installation position candidate 1 and installation position candidate 2.
[0051] Here, the sensing optical fiber 20 is to be installed inside vehicle A, along the width direction of vehicle A, and along its entire length in the width direction. Therefore, the installation positions 1 and 2 of the sensing optical fiber 20 are different in the vehicle's longitudinal direction and vehicle's height direction. For this reason, the position determination unit 12X determines the installation positions of the sensing optical fiber 20 in the vehicle's longitudinal direction and vehicle's height direction from among installation position 1 and installation position 2.
[0052] Specifically, in the example shown in Figure 9, among installation location candidate 1 and installation location candidate 2, installation location candidate 1 is the one whose simulation result by the second simulation unit 13X is most similar to the simulation result by the first simulation unit 11X shown in Figure 4. Therefore, the position determination unit 12X determines installation location candidate 1 as the installation location for the sensing optical fiber 20 in the vehicle's longitudinal direction and vehicle height direction.
[0053] As a result, the installation position of the sensing optical fiber 20 inside vehicle A, as determined by the position determination unit 12X, is as shown in the example in Figure 3.
[0054] Next, we will explain the operation flow of the position determination device 10X related to this disclosure. Figure 10 is a flowchart illustrating an example of the operation flow of the position determination device 10X according to this disclosure.
[0055] As shown in Figure 10, first, the first simulation unit 11X simulates vibrations and temperature inside vehicle A (step S201).
[0056] Next, the second simulation unit 13X simulates the sensing results when vibrations and temperature inside vehicle A are sensed using the sensing optical fiber 20 installed at each of the multiple candidate installation locations for the sensing optical fiber 20 inside vehicle A (step S202).
[0057] Subsequently, the position determination unit 12X uses the simulation results of vibration and temperature inside vehicle A, simulated by the first simulation unit 11X, and the simulation results of vibration and temperature sensing results for each of the multiple installation position candidates inside vehicle A, simulated by the second simulation unit 13X, to determine the installation position of the sensing optical fiber 20 from among the multiple installation position candidates (step S203).
[0058] As described above, according to this second embodiment, the first simulation unit 11X simulates vibration and temperature inside vehicle A. The second simulation unit 13X simulates the sensing results when vibration and temperature inside vehicle A are sensed using the sensing optical fiber 20 installed at each of the multiple candidate installation locations for the sensing optical fiber 20 inside vehicle A. The position determination unit 12X uses the simulation results of vibration and temperature by the first simulation unit 11X and the simulation results of vibration and temperature sensing for each of the multiple candidate installation locations by the second simulation unit 13X to determine the installation location of the sensing optical fiber 20 from among the multiple candidate installation locations. This makes it possible to determine the installation location of the sensing optical fiber 20 inside vehicle A from among the multiple candidate installation locations without manual intervention.
[0059] <Hardware configuration of the position determination device> Next, the hardware configuration of the computer 90 that implements the position determination devices 10 and 10X according to this disclosure will be described. Figure 11 is a block diagram showing an example of the hardware configuration of a computer 90 that implements the position determination devices 10 and 10X according to this disclosure.
[0060] As shown in Figure 11, the computer 90 includes a processor 91, memory 92, storage 93, input / output interface (I / F) 94, and communication interface (Communication I / F) 95, etc. The processor 91, memory 92, storage 93, input / output interface 94, and communication interface 95 are connected to each other by a data transmission path for sending and receiving data.
[0061] The processor 91 is a processing unit such as a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit). The memory 92 is a memory such as RAM (Random Access Memory) or ROM (Read Only Memory). The storage 93 is a storage device such as an HDD (Hard Disk Drive), SSD (Solid State Drive), or memory card. The storage 93 may also be a memory such as RAM or ROM.
[0062] A program is stored in the storage 93. This program, when loaded into a computer, includes a set of instructions (or software code) that causes the computer 90 to perform one or more functions of the position determination devices 10, 10X described above. The components of the position determination devices 10, 10X described above may also be realized by the processor 91 loading and executing the program stored in the storage 93. Furthermore, the storage function of the position determination devices 10, 10X described above may be realized by memory 92 or storage 93.
[0063] Furthermore, the programs described above may be stored on non-temporary computer-readable media or tangible storage media. Examples, but not limited to, include RAM, ROM, flash memory, SSD or other memory technologies, CD (Compact Disc)-ROM, DVD (Digital Versatile Disc), Blu-ray® disc or other optical disc storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices. The programs may also be transmitted over temporary computer-readable media or communication media. Examples, but not limited to, include electrical, optical, acoustic or other forms of propagating signals.
[0064] The input / output interface 94 is connected to a display device 941, an input device 942, a sound output device 943, etc. The display device 941 is a device that displays a screen corresponding to the drawing data processed by the processor 91, such as an LCD (Liquid Crystal Display), a CRT (Cathode Ray Tube) display, or a monitor. The input device 942 is a device that receives operator input, such as a keyboard, mouse, and touch sensor. The display device 941 and the input device 942 may be integrated and implemented as a touch panel. The sound output device 943 is a device that outputs sound corresponding to the acoustic data processed by the processor 91, such as a speaker.
[0065] The communication interface 95 transmits and receives data to and from external devices. For example, the communication interface 95 communicates with external devices via a wired communication path or a wireless communication path.
[0066] Although the present disclosure has been described above with reference to embodiments, the present disclosure is not limited to the embodiments described above. Various modifications to the structure and details of the present disclosure are possible, as can be understood by those skilled in the art within the scope of the present disclosure. Furthermore, each embodiment can be combined with other embodiments as appropriate.
[0067] Furthermore, each drawing is merely illustrative to illustrate one or more embodiments. Each drawing may be associated not only with one specific embodiment but also with one or more other embodiments. As those skilled in the art will understand, various features or steps described with reference to any one drawing may be combined with features or steps shown in one or more other drawings to create embodiments that are not explicitly illustrated or described. Not all features or steps shown in any one drawing to illustrate an exemplary embodiment are necessarily required, and some features or steps may be omitted. The order of steps shown in any of the drawings may be changed as appropriate.
[0068] Furthermore, some or all of the embodiments described above may also be described as follows, but are not limited to these. (Note 1) A first simulation means for simulating vibrations and temperature inside a vehicle, The system includes a position determination means that determines the installation position of an optical fiber to be installed inside the vehicle for sensing vibration and temperature inside the vehicle, using the simulation results of vibration and temperature inside the vehicle simulated by the first simulation means, Positioning device. (Note 2) The vehicle further comprises a second simulation means for simulating the sensing results when vibration and temperature inside the vehicle are sensed using the optical fiber installed at each of the multiple candidate installation locations for the optical fiber inside the vehicle. The position determination means determines the installation position of the optical fiber from among the multiple installation position candidates, using the simulation results of vibration and temperature inside the vehicle simulated by the first simulation means and the simulation results of vibration and temperature sensing for each of the multiple installation position candidates simulated by the second simulation means. The position determination device described in Appendix 1. (Note 3) The first simulation means simulates vibration and temperature inside the vehicle using at least one of the following: simulation results simulating vibration and temperature near the engine inside the other vehicle, and simulation results simulating vibration and temperature near the battery inside the other vehicle. The position determination device described in Appendix 1. (Note 4) A position determination method performed by a position determination device, A first simulation step simulates vibrations and temperature inside the vehicle, The process includes a positioning step of determining the position of an optical fiber to be installed inside the vehicle to sense vibration and temperature inside the vehicle, using the simulation results of vibration and temperature inside the vehicle simulated by the first simulation step, Positioning method. (Note 5) On the computer, A first simulation procedure that simulates vibration and temperature inside the vehicle, Using the simulation results of vibration and temperature inside the vehicle, which were simulated by the first simulation procedure, a position determination procedure is performed to determine the position of optical fibers to be installed inside the vehicle in order to sense vibration and temperature inside the vehicle. program.
[0069] Furthermore, some or all of the elements (e.g., configuration and function) described in Appendices 2 and 3 that are subordinate to Appendice 1 may also be subordinate to Appendices 4 and 5 in the same manner as those described in Appendices 2 and 3. Some or all of the elements described in any appendice may be applied to various hardware, software, recording means, systems, and methods for recording software. [Explanation of Symbols]
[0070] 10,10X positioning device 11,11X 1st mock part 12,12X positioning section 13X 2nd mock part 20 Optical fibers for sensing 31 Engine 32 Auxiliary battery 33 ECU 34 Fiber optic cables 35 Sensing equipment 41 Power line 42 LAN cables 43 Sensors 90 Computer 91 processors 92 memory 93 Storage 94 Input / Output Interfaces 941 Display device 942 Input device 943 Sound output device 95 Communication Interface
Claims
1. A first simulation means for simulating vibrations and temperature inside a vehicle, The system includes a position determination means that determines the installation position of an optical fiber to be installed inside the vehicle for sensing vibration and temperature inside the vehicle, using the simulation results of vibration and temperature inside the vehicle simulated by the first simulation means, Positioning device.
2. The vehicle further comprises a second simulation means for simulating the sensing results when vibration and temperature inside the vehicle are sensed using the optical fiber installed at each of the multiple candidate installation locations for the optical fiber inside the vehicle. The position determination means determines the installation position of the optical fiber from among the plurality of installation position candidates, using the simulation results of vibration and temperature inside the vehicle simulated by the first simulation means and the simulation results of vibration and temperature sensing for each of the plurality of installation position candidates simulated by the second simulation means. The position determination device according to claim 1.
3. The first simulation means simulates vibration and temperature inside the vehicle using at least one of the following: the simulation results of simulating vibration and temperature near the engine inside the other vehicle, and the simulation results of simulating vibration and temperature near the battery inside the other vehicle. The position determination device according to claim 1.
4. A position determination method performed by a position determination device, A first simulation step simulates vibrations and temperature inside the vehicle, The process includes a positioning step of determining the position of an optical fiber to be installed inside the vehicle to sense vibrations and temperature inside the vehicle, using the simulation results of vibrations and temperature inside the vehicle simulated by the first simulation step, Positioning method.
5. On the computer, A first simulation procedure for simulating vibrations and temperature inside the vehicle, Using the simulation results of vibration and temperature inside the vehicle, which were simulated by the first simulation procedure, a position determination procedure is performed to determine the position of optical fibers to be installed inside the vehicle in order to sense vibration and temperature inside the vehicle. program.