Vehicle operation state detection device, vehicle operation state detection method, and vehicle operation state detection program

Abstract

To provide a vehicle operation state detecting device, a vehicle operation state detecting method, and a vehicle operation state detecting program, which reduce a possibility of erroneously determining that an operation to a cargo loading unit during vehicle stop is an operation while the vehicle is traveling.SOLUTION: According to a vehicle operation state detecting device, a vehicle operation state detecting method, and a vehicle operation state detecting program, traveling information for indicating a traveling state of a vehicle is acquired; operation information for indicating an operation for the cargo loading unit mounted on the vehicle is acquired; whether or not the vehicle is in a traveling state is determined based on the traveling information; and whether or not an operation on the cargo loading unit is being performed is determined based on the operation information. Here, a time period during which it is determined that an operation is being performed is defined as an operation time period; a time period during which it is determined that the vehicle is in a traveling state is defined as a traveling time period; and a time period from a starting time of the operation time period to an elapse of a predetermined time period is defined as a grace period. When a target time period obtained by excluding the grace time period from the operation time period overlaps with the traveling time period, an operation is classified as a prohibited operation.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a vehicle operation state detection device, a vehicle operation state detection method, and a vehicle operation state detection program. [Background technology]

[0002] According to the technology disclosed in Patent Document 1, a data recorder acquires the moving speed of a work vehicle (forklift) and an identification signal indicating whether the moving direction is forward or backward. Then, when a combination of the moving speed and moving direction satisfies a predetermined condition, it is determined that the movement of the work vehicle has stopped. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2013-56736 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, according to the technology disclosed in Patent Document 1, when detecting an operation of the load carrying section after the work vehicle has stopped, there is a time lag between the timing when the work vehicle actually starts to move / stop and the timing when it is determined that the work vehicle has moved / stopped. Therefore, there is a risk that an operation on the load carrying section while the vehicle is stopped will be erroneously determined to be an operation while the vehicle is moving.

[0005] The present invention has been made in consideration of the problems inherent in the conventional technology, and an object of the present invention is to provide a vehicle operation state detection device, a vehicle operation state detection method, and a vehicle operation state detection program that reduce the possibility of erroneously determining that an operation on a luggage loading section while the vehicle is stopped is an operation while the vehicle is moving. [Means for solving the problem]

[0006] A vehicle operation state detection device according to a first aspect of the present invention includes a driving information acquisition unit that acquires driving information indicating a driving state of the vehicle, an operation information acquisition unit that acquires operation information indicating an operation on a luggage carrying unit mounted on the vehicle, and a controller that receives the driving information and the operation information, determines whether the vehicle is in a driving state based on the driving information, and determines whether an operation is being performed on the luggage carrying unit based on the operation information. Here, a time period during which it is determined that an operation is being performed is defined as an operation time period, a time period during which it is determined that the vehicle is in a driving state is defined as a driving time period, and a time period from the start time of the operation time period until a predetermined time has elapsed is defined as a grace time period. When a target time period, which is the operation time period excluding the grace time period, overlaps with the driving time period, the controller classifies the operation as a prohibited operation.

[0007] A vehicle operation state detection method according to a second aspect of the present invention is executed by a computer, acquires driving information indicating a driving state of the vehicle, acquires operation information indicating an operation on a luggage carrying unit mounted on the vehicle, determines whether the vehicle is in a driving state based on the driving information, and determines whether an operation on the luggage carrying unit is being performed based on the operation information. Here, a time period during which it is determined that an operation is being performed is defined as an operation time period, a time period during which it is determined that the vehicle is in a driving state is defined as a driving time period, and a time period from the start time of the operation time period until a predetermined time has elapsed is defined as a grace time period. The vehicle operation state detection method classifies an operation as a prohibited operation when a target time period obtained by excluding the grace time period from the operation time period overlaps with the driving time period.

[0008] A vehicle operation state detection program according to a third aspect of the present invention causes a computer to execute the steps of acquiring driving information indicating a driving state of the vehicle, acquiring operation information indicating an operation on a luggage carrying unit mounted on the vehicle, determining whether the vehicle is in a driving state based on the driving information, and determining whether an operation on the luggage carrying unit is being performed based on the operation information. Here, a time period during which it is determined that an operation is being performed is defined as an operation time period, a time period during which it is determined that the vehicle is in a driving state is defined as a driving time period, and a time period from the start time of the operation time period until a predetermined time has elapsed is defined as a grace time period. The vehicle operation state detection program causes the computer to execute the step of classifying an operation as a prohibited operation when a target time period obtained by excluding the grace time period from the operation time period overlaps with the driving time period. Effect of the Invention

[0009] According to the present invention, it is possible to reduce the possibility of erroneously determining that an operation on a luggage loading section while the vehicle is stopped is an operation performed while the vehicle is moving. [Brief description of the drawings]

[0010] [Figure 1] 1 is a side view showing a forklift to which a vehicle operation state detection device according to an embodiment of the present invention is applied. [Diagram 2] 1 is a block diagram showing an example of the configuration of a digital tachograph that is applied to a vehicle operation state detection device according to an embodiment of the present invention. [Diagram 3] 2 is a block diagram showing an example of the configuration of a CPU applied to the vehicle operation state detection device according to the present embodiment. FIG. [Figure 4] 4 is a flowchart showing an example of a process of the vehicle operation state detection device according to the present embodiment. [Diagram 5] FIG. 11 is a diagram showing a first pattern of a timing chart. [Figure 6] FIG. 11 is a diagram showing a second pattern of the timing chart. [Figure 7] FIG. 13 is a diagram showing a third pattern of the timing chart. [Figure 8]FIG. 13 is a diagram showing a fourth pattern of the timing chart. [Figure 9] FIG. 13 is a diagram showing a fifth pattern of the timing chart. [Figure 10] FIG. 13 is a diagram showing a sixth pattern of the timing chart. [Figure 11] FIG. 13 is a diagram showing a seventh pattern of the timing chart. [Figure 12] FIG. 13 is a diagram showing an eighth pattern of the timing chart. [Figure 13] FIG. 13 is a diagram showing a ninth pattern of the timing chart. [Figure 14] FIG. 10 is a diagram showing a tenth pattern of the timing chart. [Figure 15] FIG. 11 is a diagram showing an eleventh pattern of the timing chart. [Figure 16] FIG. 12 is a diagram showing a twelfth pattern of the timing chart. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Next, the vehicle operation state detection device according to the present embodiment will be described in detail with reference to the drawings. In the description, the same components are designated by the same reference numerals and duplicated description will be omitted.

[0012] [Example of work vehicle configuration] With reference to FIG. 1, a forklift F will be described as an example of a construction vehicle to which the vehicle operation state detection device for a construction vehicle according to this embodiment can be applied.

[0013] A forklift F as a work vehicle includes a lifting fork section 103 (load carrying section), drive wheels 104, running wheels 105, an instrument panel 116, a steering wheel 110, a gear shift lever 111, a proximity sensor 120 (operation information acquisition section), and the like.

[0014] The forklift F may be an engine vehicle using an internal combustion engine such as a gasoline engine as the driving source 102, or it may be a battery vehicle using an electric motor as the driving source 102, which is driven by power supplied from a secondary battery (battery) that can be charged from a generator, etc.

[0015] An on-board camera CAM is provided above the mast section 115 that supports the fork section 103. The imaging range 500 of the on-board camera CAM is set to a range in which the fork section 103, the road surface on which the vehicle runs, etc. can be imaged. The location where the on-board camera CAM is provided is not limited to the mast section 115 as long as it is a position where an image of the road surface on which the vehicle runs can be acquired.

[0016] A digital tachograph DT1 and the like are provided as in-vehicle devices in the instrument panel 116. The digital tachograph DT1 and the like will be described in detail later.

[0017] In addition, an acceleration sensor (G sensor) is attached to the body of the forklift F to detect acceleration (front-back G, left-right G, and up-down G) during movement.

[0018] An operator (driver) of the forklift F operates the steering wheel 110, the gear shift lever 111, and pedals such as an accelerator pedal and a brake pedal (not shown), etc. Through these operations, the fork section 103 is raised and lowered, and the forklift F is caused to move forward, backward, turn right, turn left, etc., to perform loading and unloading work, etc.

[0019] The proximity sensor 120 acquires operation information of the steering wheel 110, the gear shift lever 111, other pedals, etc. For example, the proximity sensor 120 is a pickup sensor, and may be an electromagnetic sensor that generates a voltage in response to the movement of the steering wheel 110, the gear shift lever 111, other pedals, etc. An operation performed by an operator on the forklift F is acquired by the proximity sensor 120 as operation information.

[0020] The operation information includes information indicating an operation for controlling the travel of the forklift F, as well as information indicating an operation for the fork portion 103.

[0021] In addition, the work vehicle is not limited to the forklift F and may be a transport vehicle or the like, so long as it is a vehicle that loads and unloads or transports luggage, products, etc. within the premises of a factory, warehouse, or the like.

[0022] [Example of digital tachograph configuration] The configuration of the digital tachograph DT1 will be described with reference to Fig. 2. Fig. 2 is a block diagram showing an example of the configuration of the digital tachograph DT1 applied to the vehicle operation state detection device.

[0023] The digital tachograph DT1 shown in FIG. 2 as an on-board device is mounted on a forklift F and records operational data including driving data that indicates driving conditions such as engine speed exceeding, sudden starts, sudden acceleration, and sudden deceleration, at each hour.

[0024] The digital tachograph DT1 has a CPU 11 (controller). The digital tachograph DT1 also has a speed / engine RPM I / F 12, an external input I / F 13, a sensor input I / F 14, a GPS receiver 202, a CAN_I / F 16, and a recording unit 301. The digital tachograph DT1 also has a card I / F 18, a voice I / F 19, a speaker 404, and an RTC 21 (clock IC). The digital tachograph DT1 also has an exit / enter button switch input unit 22, a display controller 23, a communication unit 24, a power supply unit 25, a memory 26, an LED display unit 403, and a land transport ON / OFF button switch input unit 31.

[0025] The CPU 11 is a control unit configured by a microcomputer, and controls the entire digital tachograph DT1 according to a program. The programs executed by the CPU 11 and data such as constants required for control are held in a memory 26. The memory 26 is non-volatile, and it is possible to read and write predetermined programs and data.

[0026] The recording unit 301 is a non-volatile memory from which data can be read and written, and is used for recording and holding operational data.

[0027] The card I / F 18 is an interface for connecting a memory card conforming to a predetermined standard to the CPU 11, and includes a card slot for removably holding the memory card. A predetermined memory card 55 carried by each operator who drives the forklift F is attached to this card I / F 18. This memory card 55 has a built-in non-volatile memory, and is used with a number for identifying each operator and the like registered therein.

[0028] The audio I / F 19 is an interface for synthesizing and outputting a pseudo audio signal, and can output audio signals corresponding to various messages under the control of the CPU 11. A speaker 404 serving as an annunciation unit is connected to the output of the audio I / F 19.

[0029] The RTC 21 (real-time clock) constantly counts a predetermined clock pulse to obtain information on the current time. The RTC 21 also functions as a timer 303. The CPU 11 can obtain information on the current time by controlling the RTC 21. The CPU 11 can also use the timer 303 by controlling the RTC 21.

[0030] An ON / OFF signal of the exit / enter button is input to the exit / enter button switch input unit 22. Therefore, the CPU 11 monitors the ON / OFF state of the exit / enter button via the exit / enter button switch input unit 22, and can grasp whether the work vehicle is in an exit or entrance state, and can obtain the working time of the forklift F.

[0031] The display controller 23 controls the display contents of a display 405 serving as a notification unit. The display 405 is configured, for example, by a liquid crystal display device or an organic EL display device, and can display various information.

[0032] The LED display unit 403 incorporates a plurality of LEDs (light emitting diodes), and can display communication and operation states by turning on, off, or blinking each LED under the control of the CPU 11. The land transport ON / OFF button switch input unit 31 is operated by an operator or the like and is used to manually switch the land transport mode on and off.

[0033] A speed pulse and a rotation pulse are input from a vehicle speed sensor and an engine rotation speed sensor, respectively, to the speed / engine rotation speed I / F 12. The speed / engine rotation speed I / F 12 converts the input signals into signals suitable for processing by the CPU 11.

[0034] The external input I / F 13 is an interface for connecting an external device to the CPU 11, and is connected to an in-vehicle camera CAM or the like.

[0035] The sensor input I / F 14 is an interface for connecting various sensors to the CPU 11 .

[0036] The sensor input I / F 14 receives signals from a temperature sensor that detects the engine temperature, a fuel sensor that detects the amount of fuel, a G sensor that detects the acceleration (G value) of the work vehicle, a proximity sensor 120, and the like.

[0037] The GPS receiving unit 202 (GPS sensor) receives radio waves from a plurality of GPS (Global Positioning System) satellites with a GPS antenna 202a. Then, the GPS receiving unit 202 performs a predetermined calculation process to obtain information on latitude and longitude that indicates the current position of the forklift F from the received signal. This makes it possible to obtain position information of the forklift F.

[0038] The CAN_I / F 16 is an interface for connecting to a communication network conforming to the CAN (Controller Area Network) standard. The CPU 11 can communicate with various devices connected to the communication network on the work vehicle via the CAN_I / F 16. In practice, various data such as speed, engine speed, and fuel volume are communicated.

[0039] The communication unit 24 has a specified wireless communication interface built in, and can communicate data such as operational data with the outside of the work vehicle using a wireless communication line.

[0040] The power supply unit 25 generates a stable voltage (e.g., +5 V) required for the operation of the CPU 11 and other components based on power supplied from a battery or the like of the work vehicle, and supplies power to each circuit of the digital tachograph DT1 when the ignition switch is on.

[0041] The above-mentioned speed / engine rotation I / F 12, external input I / F 13, and GPS receiver 202 constitute a travel information acquisition unit that acquires travel information indicating the travel state of the forklift F. The sensor input I / F 14 constitutes an operation information acquisition unit that acquires operation information indicating an operation performed on the fork section 103 mounted on the forklift F.

[0042] [CPU configuration example] The configuration of the CPU 11 (controller) will be described with reference to Fig. 3. Fig. 3 is a block diagram showing an example of the configuration of a CPU applied to a vehicle operation state detection device.

[0043] A computer program (vehicle operation state detection program) for causing the CPU 11 to function as a vehicle operation state detection device is installed in the CPU 11. By executing the computer program, the CPU 11 functions as a plurality of information processing circuits included in the vehicle operation state detection device.

[0044] Although an example is shown here in which the multiple information processing circuits of the vehicle operation state detection device are realized by software, it is of course possible to configure the information processing circuits by preparing dedicated hardware for executing each of the information processes described below. Also, the multiple information processing circuits may be configured by individual hardware.

[0045] The CPU 11 includes a driving state determination unit 61 , an operation state determination unit 63 , an operation classification unit 65 , and an output unit 67 .

[0046] The traveling state determination unit 61 acquires traveling information indicating the traveling state of the forklift F from the traveling information acquisition unit (speed / engine revolution I / F 12, external input I / F 13, GPS receiving unit 202). Then, based on the acquired traveling information, it is determined whether or not the forklift F is in a traveling state. Here, the forklift F is in either a "traveling state" where it travels at a speed equal to or higher than a predetermined speed, or a "stopped state" where it travels at a speed less than the predetermined speed or is stopped. In addition, the predetermined speed is set in advance.

[0047] The determination is repeatedly performed by the traveling state determination unit 61. That is, the traveling state determination unit 61 determines whether the forklift F is in a traveling state or a stopped state at a plurality of times.

[0048] The operation state determination unit 63 acquires operation information indicating an operation on the fork unit 103 mounted on the forklift F from the operation information acquisition unit (sensor input I / F 14). Then, based on the acquired operation information, it determines whether or not the fork unit 103 has been operated. Here, the operation state determination unit 63 repeatedly performs the determination. That is, the operation state determination unit 63 determines whether or not the fork unit 103 has been operated at multiple timings.

[0049] The operation classification unit 65 classifies the operation on the fork unit 103 into either a "prohibited operation" or a "permitted operation" based on the results of the determination by the running state determination unit 61 and the operation state determination unit 63.

[0050] Specifically, when a target time zone D3, which is the operation time zone D1 excluding the grace period D2, overlaps with a driving time zone D4, the operation classification unit 65 classifies the operation as a prohibited operation. Here, the operation time zone D1 is a time zone during which it is continuously determined that an operation is being performed (a time zone from a start time T11 to an end time T12). The driving time zone D4 is a time zone during which it is continuously determined that the vehicle is in a driving state (a time zone from a start time T41 to an end time T42). The grace period D2 is a time zone from the start time T11 of the operation time zone D1 until a predetermined time has elapsed (a time zone from a start time T11 to an end time T22).

[0051] The predetermined time is set in advance, taking into consideration a time lag in the determination by the traveling condition determination unit 61. For example, the predetermined time may be set longer as the time lag in the determination by the traveling condition determination unit 61 becomes longer.

[0052] Furthermore, the "prohibited operation" refers to an operation on the fork section 103 when the forklift F is actually in a traveling state. Furthermore, the "permitted operation" refers to an operation on the fork section 103 when the forklift F is actually in a stopped state. There is no particular restriction on controlling the fork section 103 based on the permitted operation, but it is not recommended to control the fork section 103 based on the prohibited operation.

[0053] Various patterns of timing charts are shown in Figures 5 to 16. The timing charts shown in Figures 5 to 16 show various relationships that may occur between the operation time zone D1, the grace time zone D2, the target time zone D3, and the driving time zone D4.

[0054] 7, 8, 13, and 14, for example, target time zone D3, which is the operation time zone D1 minus grace time zone D2, overlaps with traveling time zone D4. In these patterns, even if the time lag in the timing at which the forklift F is determined to be traveling / stopped is taken into consideration, the operation on the fork part 103 is reliably indicated as an operation performed while the forklift F was traveling. Therefore, the operation classification unit 65 classifies the operation as a prohibited operation.

[0055] In addition, when the end time T22 of the grace period D2 is included in the operation time period D1 and the end time T22 of the grace period D2 is included in the driving time period D4, the operation classification unit 65 may classify the operation as a prohibited operation.

[0056] For example, in the patterns shown in Figures 7, 8, and 14, the operation time zone D1 includes the end time T22 of the grace time zone D2, and the driving time zone D4 includes the end time T22 of the grace time zone D2. Therefore, the target time zone D3 and the driving time zone D4 overlap immediately after the end time T22 of the grace time zone D2. Therefore, even if the time lag in the timing at which the forklift F is determined to be traveling / stopped is taken into consideration, the operation on the fork part 103 is likely to be an operation performed while the forklift F is traveling. Therefore, the operation classification unit 65 may classify the operation as a prohibited operation.

[0057] Furthermore, when the start time T41 of the driving time zone D4 is included in the target time zone D3, the operation classification unit 65 may classify the operation as a prohibited operation.

[0058] 13, for example, the start time T41 of the traveling time zone D4 is included in the target time zone D3. Therefore, even if the time lag in the timing at which the forklift F is determined to be traveling / stopped is taken into consideration, the operation on the fork part 103 is reliably indicated as an operation performed while the forklift F was traveling. Therefore, the operation classification unit 65 may classify the operation as a prohibited operation.

[0059] Alternatively, when the end time T22 of the grace period D2 is not included in the operation period D1, the operation classification unit 65 may classify the operation as an permitted operation.

[0060] For example, in the patterns shown in Figures 9, 10, 11, 15, and 16, the end time T22 of the grace period D2 is not included in the operation period D1, and the target period D3 does not exist. This is because the grace period D2 is longer than the operation period D1. These patterns may occur, for example, when fine adjustments are made to the fork portion 103 while the forklift F is traveling, such as aligning the fork portion 103 or adjusting the unloading position. Therefore, in order to improve user convenience, the operation classification unit 65 may classify operations on the fork portion 103 as permitted operations.

[0061] The operation classification unit 65 may classify an operation on the fork unit 103 as a permitted operation, except for the above-mentioned case where the operation on the fork unit 103 is classified as a prohibited operation.

[0062] For example, the patterns shown in Figures 5, 6, and 12 are different from any of the above-mentioned patterns. In particular, the target time zone D3 and the driving time zone D4 do not overlap. In the patterns shown in Figures 5 and 12, the operation time zone D1 and the driving time zone D4 do not overlap in the first place, so the operation on the fork part 103 is not an operation while the forklift F is traveling. Therefore, the operation classification unit 65 may classify the operation as a permitted operation.

[0063] 6, the traveling time zone D4 ends in the grace time zone D2, and therefore even if the operation of the fork part 103 is permitted, there is little possibility that the operation will affect the traveling of the forklift F. Therefore, the operation classification unit 65 may classify the operation as a permitted operation.

[0064] The output unit 67 outputs the result of the classification by the operation classification unit 65. More specifically, the output unit 67 outputs to the recording unit 301 operation information indicating an operation on the fork part 103 of the forklift F in association with a classification flag indicating whether the operation is classified as a permitted operation or a prohibited operation.

[0065] The output unit 67 may also notify the operator of the forklift F via the audio I / F 19 or the display controller 23 that the operation on the fork part 103 has been classified as a prohibited operation.

[0066] Alternatively, the output unit 67 may transmit an operation on the fork unit 103 classified as a permitted operation to a control unit (not shown) that controls the operation of the fork unit 103. That is, the CPU 11 may control the fork unit 103 based on an operation not classified as a prohibited operation (an operation classified as a permitted operation).

[0067] [Vehicle operation state detection processing procedure] Next, a processing procedure of the vehicle operation state detection device according to this embodiment will be described with reference to the flowchart of Fig. 4. The processing shown in the flowchart of Fig. 4 is executed, for example, every time the fork portion 103 is operated.

[0068] In step S101, the traveling state determination unit 61 acquires traveling information indicating the traveling state of the forklift F. Then, based on the acquired traveling information, the traveling state determination unit 61 extracts, as a traveling time period D4, a time period during which the forklift F is determined to be in a traveling state.

[0069] In step S103, the operation state determination unit 63 acquires operation information indicating an operation of the fork unit 103 mounted on the forklift F. Then, based on the acquired operation information, the operation state determination unit 63 extracts, as an operation time period D1, a time period during which it is determined that the fork unit 103 is being operated.

[0070] In step S105, the operation classification unit 65 extracts the time period from the start time T11 of the operation time period D1 until a predetermined time has elapsed as the grace period D2. The operation classification unit 65 also extracts the time period excluding the grace period D2 from the operation time period D1 as the target time period D3. Note that if the duration of the operation time period D1 is shorter than the predetermined time, the operation classification unit 65 does not extract the target time period D3.

[0071] In step S107, the operation classification unit 65 judges whether the start time T41 of the driving time zone D4 is included in the operation time zone D1. If the start time T41 is included in the operation time zone D1 (YES in step S107), the process proceeds to step S109. If the start time T41 is not included in the operation time zone D1 (NO in step S107), the process proceeds to step S115.

[0072] In step S109, the operation classification unit 65 determines whether the start time T41 of the driving time zone D4 is included in the grace time zone D2. If the start time T41 is included in the grace time zone D2 (YES in step S109), the process proceeds to step S111. If the start time T41 is not included in the grace time zone D2 (NO in step S109), the process proceeds to step S117.

[0073] In step S111, the operation classification unit 65 determines whether the end time T22 of the grace period D2 is included in the driving time period D4. If the end time T22 is included in the driving time period D4 (YES in step S111), the process proceeds to step S113. If the end time T22 is not included in the driving time period D4 (NO in step S111), the process proceeds to step S119.

[0074] In step S113, the operation classification unit 65 judges whether the end time T22 of the grace period D2 is included in the operation period D1. If the end time T22 is included in the operation period D1 (YES in step S113), the process proceeds to step S117. If the end time T22 is not included in the operation period D1 (NO in step S113), the process proceeds to step S119.

[0075] In step S115, the operation classification unit 65 determines whether the start time T11 of the operation time zone D1 is included in the driving operation time zone D4. If the start time T11 is included in the driving time zone D4 (YES in step S115), the process proceeds to step S111. If the start time T11 is not included in the driving time zone D4 (NO in step S115), the process proceeds to step S119.

[0076] In step S117, the operation classification unit 65 classifies the operation on the fork unit 103 as a prohibited operation.

[0077] In step S119, the operation classification unit 65 classifies the operation on the fork unit 103 as a permitted operation.

[0078] After the process of step S117 or step S119, the process shown in the flowchart in FIG. 4 ends.

[0079] [Effects of the embodiment] As described above in detail, the vehicle operation state detection device, the vehicle operation state detection method, and the vehicle operation state detection program according to the present embodiment acquire driving information indicating the driving state of the vehicle, acquire operation information indicating an operation on a luggage loading section mounted on the vehicle, determine whether the vehicle is in a driving state based on the driving information, and determine whether an operation on the luggage loading section is being performed based on the operation information. Here, a time period during which it is determined that an operation is being performed is defined as an operation time period, a time period during which it is determined that the vehicle is in a driving state is defined as a driving time period, and a time period from the start time of the operation until a predetermined time has elapsed is defined as a grace time period. If a target time period obtained by excluding the grace time period from the operation time period overlaps with the driving time period, the operation is classified as a prohibited operation.

[0080] This reduces the possibility of erroneously determining that an operation on the luggage carrying section while the vehicle is stopped is an operation while the vehicle is moving. In particular, because a continued operation on the luggage carrying section of a vehicle in a moving state is classified as a prohibited operation based on the fact that the operation has continued for a predetermined period of time or more, the possibility of erroneous determination can be reduced.

[0081] Furthermore, an operation whose duration is less than a predetermined time is not classified as a prohibited operation. Therefore, for example, when picking up luggage to be loaded onto the luggage loading section and fine-tuning the position of the luggage loading section while driving the vehicle, the possibility that an operation on the luggage loading section will be classified as a prohibited operation can be reduced.

[0082] Furthermore, the vehicle operation state detection device, the vehicle operation state detection method, and the vehicle operation state detection program according to the present embodiment may classify an operation on the luggage loading section as a prohibited operation when the operation time period includes the end time of the grace time period and the driving time period includes the end time of the grace time period. This allows the operation on the luggage loading section to be determined as an operation while the vehicle is traveling, taking into account the time lag in the timing at which the vehicle is determined to be traveling / stopped. As a result, the accuracy of classifying an operation on the luggage loading section as a prohibited operation can be improved.

[0083] Furthermore, the vehicle operation state detection device, the vehicle operation state detection method, and the vehicle operation state detection program according to the present embodiment may classify an operation on a luggage loading section as a prohibited operation when the target time period includes the start time of a driving time period. This allows the operation on the luggage loading section to be determined as an operation while the vehicle is traveling, taking into account the time lag of when the vehicle is determined to be traveling / stopped. As a result, the accuracy of classifying an operation on the luggage loading section as a prohibited operation can be improved.

[0084] Furthermore, the vehicle operation state detection device, the vehicle operation state detection method, and the vehicle operation state detection program according to the present embodiment may classify an operation on the luggage loading section as a permitted operation when the operation time period does not include the end time of the grace period. This reduces the possibility that an operation on the luggage loading section will be classified as a prohibited operation when, for example, picking up luggage to be loaded on the luggage loading section and fine-tuning the position of the luggage loading section while driving the vehicle. As a result, user convenience is improved.

[0085] Furthermore, the vehicle operation state detection device, the vehicle operation state detection method, and the vehicle operation state detection program according to the present embodiment may perform a process of recording that an operation on a luggage carrying section is classified as a prohibited operation. This makes it possible to identify operations classified as prohibited operations among operations performed by an operator. As a result, it is possible to analyze whether the operator tends to perform an unrecommended operation, such as operating the luggage carrying section while the vehicle is traveling.

[0086] The vehicle operation state detection device, the vehicle operation state detection method, and the vehicle operation state detection program according to the present embodiment may perform a process of notifying a driver of the vehicle that an operation on a luggage loading section has been classified as a prohibited operation. In this way, when an operator performs an unrecommended operation, the operator can be alerted that the operation is unrecommended.

[0087] Furthermore, the vehicle operation state detection device, the vehicle operation state detection method, and the vehicle operation state detection program according to the present embodiment may control the luggage carrying unit based on an operation on the luggage carrying unit that is not classified as a prohibited operation, thereby making it possible to prevent the luggage carrying unit from being controlled by an unrecommended operation.

[0088] Each of the functions described in the above embodiments may be implemented by one or more processing circuits, including a programmed processor, an electrical circuit, or a device such as an application specific integrated circuit (ASIC), or a circuit component arranged to perform the described functions.

[0089] Although the present embodiment has been described above, the present embodiment is not limited to this, and various modifications are possible within the scope of the gist of the present embodiment. [Explanation of symbols]

[0090] 11 CPU (controller) 12 Speed / engine revolution I / F (driving information acquisition section) 61 Driving state determination unit 63 Operation status determination unit 65 Operation classification section 67 Output section 103 Fork section (luggage carrying section) 120 Proximity sensor (operation information acquisition unit) 301 Recording Department 404 Speaker (notification unit) 405 Display (alarm unit) CAM Vehicle Camera F Forklift (vehicle) D1 Operation Time Period D2 Grace period D3 Target time period D4 Operating Hours

Claims

1. A driving information acquisition unit that acquires driving information indicating a driving state of a vehicle; an operation information acquisition unit that acquires operation information indicating an operation performed on a luggage loading unit mounted on the vehicle; a controller to which the travel information and the operation information are input, the controller determining whether the vehicle is in a travelling state based on the travel information, and determining whether an operation is being performed on the luggage loading unit based on the operation information; A vehicle operation state detection device comprising: The controller: A time period during which the operation is determined to be performed is defined as an operation time period, A time period during which the vehicle is determined to be in a traveling state is defined as a traveling time period, A time period from the start time of the operation time period until a predetermined time has elapsed is defined as a grace period, A vehicle operation state detection device that classifies the operation as a prohibited operation when a target time period, which is the operation time period excluding the grace time period, overlaps with the driving time period.

2. The controller: The operation time period includes an end time of the grace period, and When the driving time period includes an end time of the grace period, The vehicle operation state detection device according to claim 1 , wherein the operation is classified as a prohibited operation.

3. The controller: When the target time period includes the start time of the driving time period, The vehicle operation state detection device according to claim 1 , wherein the operation is classified as a prohibited operation.

4. The controller: When the operation time period does not include the end time of the grace period, The vehicle operation state detection device according to claim 1 , further comprising: a step of classifying the operation as an allowed operation.

5. The vehicle operation state detection device according to claim 1 , wherein the controller controls the luggage carrying unit based on the operation that is not classified as the prohibited operation.

6. 1. A computer-implemented method for detecting vehicle operation conditions, comprising: Acquire driving information indicating the driving state of the vehicle; Acquire operation information indicating an operation performed on a luggage carrying section mounted on the vehicle; determining whether the vehicle is in a traveling state based on the travel information, and determining whether an operation is being performed on the luggage loading unit based on the operation information; A time period during which the operation is determined to be performed is defined as an operation time period, A time period during which the vehicle is determined to be in a traveling state is defined as a traveling time period, A time period from the start time of the operation time period until a predetermined time has elapsed is defined as a grace period, A vehicle operation state detection method for classifying the operation as a prohibited operation when a target time period, which is the operation time period excluding the grace time period, overlaps with the driving time period.

7. acquiring driving information indicating a driving state of a vehicle; acquiring operation information indicating an operation performed on a luggage carrying section mounted on the vehicle; determining whether the vehicle is in a traveling state based on the traveling information; determining whether an operation is being performed on the luggage loading section based on the operation information; A time period during which the operation is determined to be performed is defined as an operation time period, A time period during which the vehicle is determined to be in a traveling state is defined as a traveling time period, A time period from the start time of the operation time period until a predetermined time has elapsed is defined as a grace period, A vehicle operation state detection program for causing a computer to execute a step of classifying the operation as a prohibited operation when a target time period, which is the operation time period excluding the grace period, overlaps with the driving time period.

Images