Agricultural work vehicle, information processing method, and computer program

Abstract

To provide an agricultural work vehicle capable of protecting a seat surface of a sheet, an information processing method, and a computer program.SOLUTION: According to this disclosure, an agricultural work vehicle 1 is provided with a control part 33, and the control part 33 acquires sensor data from sensors (a raindrop detection sensor 41, a temperature sensor 42, or the like) provided in relation to a sheet 2, and performs control so as to incline the sheet 2 in the case that the sensor data satisfies a prescribed condition. The control part 33 performs control so as to incline the sheet 2 in the case that the sensor data satisfies the prescribed condition. The sensor data is acquired from the sensors provided in relation to the sheet 2. The inclination of the sheet 2 can protect the seat surface of the sheet 2 from rain, direct sunlight, or the like. The control part 33 automatically inclines the sheet 2. Therefore, user's convenience can be improved because the user does not have to manually incline or cover the sheet 2 with a cover.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to an agricultural work vehicle, an information processing method, and a computer program.

Background Art

[0002] Conventionally, agricultural work vehicles such as rice transplanters, tractors, and combines have been widely used. In the case of the agricultural work vehicle (referred to as "agricultural work machine" in the text) described in Patent Document 1, a user can sit on a seat (referred to as "driver's seat" in the text) provided in the agricultural work vehicle and drive the agricultural work vehicle.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The agricultural work vehicle described in Patent Document 1 is a so-called cabless machine, and the seat is not housed in a cabin. Therefore, it is necessary to protect the seat surface from rain or direct sunlight.

[0005] An object of the present disclosure is to provide an agricultural work vehicle, an information processing method, and a computer program capable of protecting a seat surface.

Means for Solving the Problems

[0006] The agricultural work vehicle according to the present disclosure includes a control unit that acquires sensor data from a sensor provided in relation to a seat and controls the seat to incline when the sensor data satisfies a predetermined condition.

[0007] In the present disclosure, when the sensor data satisfies a predetermined condition, the control unit controls the seat to tilt. The sensor data is acquired from a sensor provided in relation to the seat. Due to the tilt of the seat, the seating surface of the seat can be protected from rain, direct sunlight, etc. The control unit causes the seat to tilt automatically. Therefore, since there is no need for the user to manually tilt the seat or cover it with a cover, the convenience for the user can be improved.

[0008] In the agricultural work vehicle according to the present disclosure, the sensor includes a raindrop detection sensor that detects raindrops, and when the raindrop amount data acquired by the raindrop detection sensor exceeds a predetermined threshold value, the control unit changes the seating surface angle of the seat from a first angle at the seating position to a second angle that is larger than the first angle for allowing rainwater to flow down.

[0009] In the present disclosure, the sensor includes a raindrop detection sensor. The raindrop detection sensor detects raindrops. When the raindrop amount data acquired by the raindrop detection sensor exceeds a predetermined threshold value, the control unit controls the seating surface of the seat to tilt. At this time, the seating surface angle of the seat changes from the first angle to the second angle. The first angle is the seating surface angle at the seating position. The second angle is the seating surface angle for allowing rainwater to flow down and is larger than the first angle.

[0010] When the raindrop amount data exceeds the predetermined threshold value, for example, it is a rainy day. In this case, there is a possibility that water puddles may be formed on the seating surface with the first angle. However, since rainwater flows down from the seating surface with the second angle, it is difficult for water puddles to be formed on the seating surface.

[0011] In the agricultural work vehicle according to the present disclosure, the sensor includes a temperature sensor, and when the temperature data acquired by the temperature sensor exceeds a predetermined threshold value, the control unit tilts the seating surface of the seat.

[0012] In the present disclosure, the sensor includes a temperature sensor. When the temperature data acquired by the temperature sensor exceeds a predetermined threshold, the control unit controls the seat surface to tilt. The case where the temperature data exceeds a predetermined threshold is, for example, during the day in summer. In this case, since direct sunlight is likely to hit the non-tilted seat surface, the temperature of the seat surface may become too high. However, since direct sunlight is less likely to hit the tilted seat surface, the temperature of the seat surface is less likely to increase.

[0013] The agricultural work vehicle according to the present disclosure is characterized in that the sensor includes a seating detection sensor that detects seating on the seat, and when the seating data acquired by the seating detection sensor indicates seating, the control unit does not execute control to tilt the seat.

[0014] In the present disclosure, the sensor includes a seating detection sensor. The seating detection sensor detects seating on the seat. When the seating data acquired by the seating detection sensor indicates seating, the control unit does not tilt the seat. Therefore, it is possible to prevent the seat from tilting when it is not preferable to tilt the seat because a user is seated on the seat.

[0015] The agricultural work vehicle according to the present disclosure is characterized in that the sensor includes a presence detection sensor that detects the presence of an object on the seat, and when the presence data acquired by the presence detection sensor indicates the presence, the control unit does not execute control to tilt the seat.

[0016] In the present disclosure, the sensor includes a presence detection sensor. The presence detection sensor detects the presence of an object on the seat. When the presence data acquired by the presence detection sensor indicates the presence, the control unit does not tilt the seat. Therefore, it is possible to prevent the seat from tilting when it is not preferable to tilt the seat because an object is present on the seat (for example, a smartphone is placed on the seat surface or a coat is hung on the backrest).

[0017] In the agricultural work vehicle according to the present disclosure, when the seat is tilted, the control unit controls the seat to return to the seating position when a second predetermined condition is satisfied.

[0018] In the present disclosure, when the seat is tilted, the control unit controls the seat to return to the seating position. The timing for returning the seat to the seating position is when a second predetermined condition is satisfied. Since the user does not need to manually return the seat to the seating position, the convenience of the user can be further improved.

[0019] The information processing method according to the present disclosure is characterized in that sensor data is acquired from a sensor provided in relation to the seat of an agricultural work vehicle, and when the sensor data satisfies a predetermined condition, the seat is controlled to tilt.

[0020] In the present disclosure, since the seat provided in the agricultural work vehicle can be automatically tilted, the convenience of the user can be improved. By tilting the seat, the seating surface of the seat can be protected from rain, direct sunlight, etc.

[0021] The computer program according to the present disclosure is characterized in that sensor data is acquired from a sensor provided in relation to the seat of an agricultural work vehicle, and when the sensor data satisfies a predetermined condition, the computer is caused to execute a process of controlling the seat to tilt.

[0022] In the present disclosure, the information processing method according to the present disclosure can be realized software-wise using the hardware elements of a computer.

Effects of the Invention

[0023] According to the agricultural work vehicle, information processing method, and computer program of the present disclosure, the seating surface of the seat can be protected.

Brief Description of the Drawings

[0024]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Mode for Carrying Out the Invention

[0025] Hereinafter, embodiments of the present disclosure will be described.

[0026] FIG. 1 is a schematic side view of an agricultural working vehicle according to an embodiment. In the figure, 1 is an agricultural working vehicle, and the agricultural working vehicle 1 includes a passenger-type vehicle body 11. Left and right front wheels 12 are provided at the lower front side of the vehicle body 11. Left and right rear wheels 13 are provided at the lower rear side of the vehicle body 11. An engine 14 is built in the front part of the vehicle body 11. The engine 14 drives the front wheels 12 and the rear wheels 13. The agricultural working vehicle 1 of the present embodiment is a rice transplanter, and a seedling planting device 15 is provided at the rear part of the vehicle body 11. The seedling planting device 15 operates by receiving the power output from the engine 14.

[0027] A pedestal 16 is provided at the upper rear side of the vehicle body 11, and a seat 2 is arranged on the upper side of the pedestal 16. The seat 2 has a seat surface 2a and a backrest 2b. The user sits on the seat 2 and drives the agricultural working vehicle 1. When the front wheels 12 and the rear wheels 13 are driven by the engine 14, the agricultural working vehicle 1 travels. A steering wheel 17 is provided in front of the seat 2. When the user operates the steering wheel 17, the steering angle of the front wheels 12 is adjusted.

[0028] The seat 2 is provided so as to be swingable between a predetermined seating position (illustrated by a solid line in FIG. 1) and a predetermined inclined position (illustrated by a two-dot chain line in FIG. 1) about a shaft 21 extending horizontally. For example, the shaft 21 is fixed to the seat 2 on the lower side of the seat 2, and is rotatably supported by a support (not shown) provided on the pedestal 16.

[0029] The pedestal 16 incorporates a drive source 22 and a control device 3. The drive source 22 is, for example, a stepping motor. The shaft 21 is connected to the output shaft of the drive source 22 via a gear mechanism (not shown). The shaft 21 rotates forward / backward as the drive source 22 rotates forward / backward. The drive source 22, the control device 3, etc. are powered by a battery (not shown) incorporated in the pedestal 16.

[0030] For example, when the drive source 22 rotates forward, the seat 2 rotates about the shaft 21 from the seating position to the inclined position. When the drive source 22 rotates backward, the seat 2 rotates about the shaft 21 from the inclined position to the seating position. The control device 3 controls the operation of the drive source 22. Hereinafter, the rotation of the seat 2 about the shaft 21 from the seating position to the inclined position is referred to as the seat 2 tilting to the inclined position, and the rotation of the seat 2 about the shaft 21 from the inclined position to the seating position is referred to as the seat 2 returning to the seating position.

[0031] When the seat 2 is in the seating position, the seat surface angle (the angle of the seat surface 2a) is the first angle. The first angle is, for example, an angle (0°) parallel to the horizontal plane. The seat surface 2a at the first angle faces upward. The user sits on the seat 2 in the seating position. The pedestal 16 functions as a stopper that prevents excessive rotation of the seat 2 when the lower part of the seat 2 contacts the pedestal 16 from above.

[0032] The agricultural work vehicle 1 is a so-called cabless machine, and the seat 2 is not housed in a cabin. Therefore, when it is rainy and the seat 2 is in the seating position, water pools are likely to be formed on the seat surface 2a, and the backrest 2b and the steering wheel 17 are likely to get wet. It is uncomfortable to sit on the wet seat 2 or hold the wet steering wheel 17. On the other hand, when it is sunny and the seat 2 is in the seating position, the seat surface 2a, the backrest 2b, and the steering wheel 17 are likely to be exposed to direct sunlight. In particular, the seat surface 2a, the backrest 2b, or the steering wheel 17 that has been exposed to direct sunlight in summer for a long time may have an excessive temperature rise. It is uncomfortable to sit on the high-temperature seat 2 in summer or hold the high-temperature steering wheel 17.

[0033] When the seat 2 is in the inclined position, the seat surface angle is the second angle. The second angle is, for example, an angle inclined 70° to 80° with respect to the horizontal plane. The seat surface 2a of the second angle is forward-facing in this embodiment. The backrest 2b faces downward and covers the seat surface 2a and the steering wheel 17 from above. The steering wheel 17 functions as a stopper that prevents excessive rotation of the seat 2 when the backrest 2b contacts the steering wheel 17 from above. The state where the seat 2 is in the inclined position means that the seat 2 is in an inclined state.

[0034] When the seat 2 is in the inclined position, since the seat surface 2a is largely inclined and covered by the backrest 2b, water pools are less likely to be formed on the seat surface 2a even during rainfall. Even if rainwater adheres to the seat surface 2a, the adhered rainwater is likely to flow off from the seat surface 2a. Also, the downward-facing backrest 2b and the steering wheel 17 covered by the backrest 2b are less likely to get wet by rain. Even on a sunny day, the forward-facing seat surface 2a covered by the backrest 2b, the downward-facing backrest 2b, and the steering wheel 17 covered by the backrest 2b are all less likely to be exposed to direct sunlight.

[0035] As a result, the seat 2 in the inclined position can protect the seat surface 2a, the backrest 2b, and the steering wheel 17 from rain and direct sunlight. Moreover, the drive source 22 controlled by the control device 3 drives the seat 2, causing the seat 2 to swing between the seating position and the inclined position. Therefore, when the user leaves the seat, there is no need to manually tilt the seat 2 or cover it with a cover (not shown). Also, there is no need for the user to manually return the seat to the seating position. Accordingly, the convenience for the user can be improved.

[0036] FIG. 2 is a block diagram showing the configuration of the control system of the agricultural work vehicle 1. The control device 3 is a computer and includes a main storage unit 31, an auxiliary storage unit 32, and a control unit 33. Each part of the control device 3 is interconnected via a bus. The main storage unit 31 is volatile and is, for example, a RAM (Random Access Memory). The auxiliary storage unit 32 is non-volatile and includes a ROM (Read Only Memory), a flash memory, a hard disk, or an SSD (Solid State Drive), etc. The auxiliary storage unit 32 stores in advance a program 3P (computer program) and various data necessary for the execution of the program 3P.

[0037] The control unit 33 includes one or more processors such as a CPU (Central Processing Unit) or an MPU (Micro-Processing Unit). The control unit 33 uses the main storage unit 31 as a work area and executes various arithmetic processes and control processes, etc., according to the program 3P stored in the auxiliary storage unit 32. The control unit 33 may include a logic circuit (e.g., FPGA). The control unit 33 executes a plurality of processes such as the seat tilt process and the first and second flag management process described later. The plurality of processes may be executed by one processor included in the control unit 33, or may be executed distributively by a plurality of processors included in the control unit 33. The processor that executes the seat tilt process and the processor that executes the first and second flag management process may exist individually.

[0038] When the seat 2 is in the seating position, the control unit 33 acquires sensor data from sensors provided in relation to the seat 2, and when the sensor data satisfies a predetermined condition, controls the operation of the drive source 22 so that the seat 2 tilts to the tilt position. The auxiliary storage unit 32 stores in advance data indicating the relationship between the rotation angle of the output shaft of the drive source 22 and the seat surface angle of the seat 2. In FIG. 2, the seating position is illustrated by a two-dot chain line, and the tilt position is illustrated by a solid line. In the present embodiment, as an example of the sensor, a raindrop detection sensor 41, a temperature sensor 42, and a weight sensor 43 are illustrated, and as an example of the sensor data, raindrop amount data, temperature data, and weight data are illustrated.

[0039] The raindrop detection sensor 41 is arranged near the seat 2. The raindrop detection sensor 41 has, for example, a container (not shown), and outputs raindrop amount data indicating the amount of raindrops (liquid) stored in the container to the control unit 33. The amount of raindrops indicated by the raindrop amount data corresponds to the amount of raindrops pouring onto the seat 2. When the raindrop amount data exceeds a first predetermined threshold value (predetermined threshold value), there is a risk that the seat 2 and the steering wheel 17 will get too wet due to rainfall, so the control unit 33 sets a first flag described later. The first predetermined threshold value is stored in advance in the auxiliary storage unit 32.

[0040] The temperature sensor 42 detects the surface temperature of the seat surface 2a (or the backrest 2b), and outputs temperature data indicating the detection result to the control unit 33. When the temperature data exceeds a second predetermined threshold value (predetermined threshold value), there is a risk that the seat 2 and the steering wheel 17 will get too hot due to direct sunlight, so the control unit 33 sets the first flag. The second predetermined threshold value is stored in advance in the auxiliary storage unit 32.

[0041] The weight sensor 43 detects the weight applied to the seat 2 and outputs weight data indicating the detection result to the control unit 33. When the weight data exceeds a third predetermined threshold value, since there is a possibility that the user is sitting on the seat 2 or an object (for example, a smartphone) is placed on the seat 2, the control unit 33 sets a prohibition flag described later. The third predetermined threshold value is stored in advance in the auxiliary storage unit 32. The weight sensor 43 of the present embodiment also serves as a seating detection sensor and a presence detection sensor, and the weight data also serves as seating data and presence data.

[0042] When the seat 2 is in the inclined position, the control unit 33 controls the seat 2 to return to the seating position when the second predetermined condition is satisfied. In the present embodiment, the agricultural work vehicle 1 is provided with a human presence sensor 44. The human presence sensor 44 detects the movement of a heat source around the agricultural work vehicle 1 and outputs a detection signal indicating that the movement of the heat source has been detected when the movement of the heat source is detected. When the detection signal is input, since there is a possibility that the user is approaching the agricultural work vehicle 1, the control unit 33 sets a second flag described later.

[0043] FIG. 3 is a flowchart showing the procedure of the seat inclination process executed in the agricultural work vehicle 1. The seat inclination process starts when the operating engine 14 stops (that is, when the agricultural work vehicle 1 is not in use). As shown in FIG. 3, the control unit 33 resets various flags (S11). The flags reset in S11 are the first flag, the second flag, the prohibition flag, the inclination flag, and the start flag.

[0044] The first flag is a flag indicating whether or not the condition (predetermined condition) for inclining the seat 2 to the inclined position is satisfied. The reset first flag indicates that the predetermined condition is not satisfied, and the set first flag indicates that the predetermined condition is satisfied. The second flag is a flag indicating whether a condition (second predetermined condition) for returning the seat 2 to the seating position is satisfied. The reset second flag indicates that the second predetermined condition is not satisfied, and the set second flag indicates that the second predetermined condition is satisfied.

[0045] The prohibition flag is a flag indicating whether the inclination of the seat 2 is permitted or not. The reset prohibition flag indicates that the inclination of the seat 2 is permitted, and the set prohibition flag indicates that the inclination of the seat 2 is prohibited. The inclination flag is a flag indicating the position of the seat 2. The reset inclination flag indicates that the seat 2 is in the seating position, and the set inclination flag indicates that the seat 2 is in the inclined position. The start flag is a flag indicating whether the engine 14 has started or stopped. The reset start flag indicates that the engine 14 is stopped, and the set start flag indicates that the engine 14 has started.

[0046] After the process of S11 ends, the control unit 33 starts to execute two types of flag management processes (S12). Both of the two types of flag management processes are executed in parallel with the seat inclination process. One of the two types of flag management processes is the first and second flag management process shown in FIG. 4 described later, and the other is the prohibition flag management process shown in FIG. 5 described later. By executing the first and second flag management process, the first flag and the second flag are individually set. By executing the prohibition flag management process, the prohibition flag is set or reset.

[0047] Next, the control unit 33 determines whether the first flag is set (S13). If the first flag is set (YES in S13), the control unit 33 determines whether the prohibition flag is set (S14). When the prohibition flag is reset (NO in S14), it can be seen that the inclination of Sheet 2 is permitted by the prohibition flag, and it can be seen that the condition for inclining Sheet 2 to the inclined position by the first flag is satisfied. The control unit 33 inclines the seat 2 at the seating position to the inclined position by rotating the drive source 22 forward by a predetermined rotation angle (S15). After the process of S15 is completed, the control unit 33 resets the first flag (S16) and sets the inclination flag (S17).

[0048] Next, the control unit 33 determines whether the second flag is set (S21). When the second flag is reset (NO in S21), the seat 2 is inclined and the condition for returning the seat 2 to the seating position is not satisfied. Therefore, the seat 2 is maintained at the inclined position. The control unit 33 performs the process of S21 again. When the second flag is set (YES in S21), the seat 2 is inclined and the condition for returning the seat 2 to the seating position is satisfied. The control unit 33 reverses the drive source 22 by a predetermined rotation angle to return the inclined seat 2 to the seating position (S22).

[0049] After the process of S22 is completed, the control unit 33 resets the second flag (S23) and resets the inclination flag (S24). Next, the control unit 33 determines whether the engine 14 has started (S25). When the engine 14 has started (YES in S25), since the user is using the agricultural work vehicle 1, the inclination of the seat 2 is unnecessary. The control unit 33 sets the start flag (S26) and ends the seat inclination process. When the engine 14 has not started yet (NO in S25), the user is not using the agricultural work vehicle 1. The control unit 33 waits for a predetermined time (S27) to prevent the seat 2 from immediately inclining again, and then returns the process to S13.

[0050] When the first flag is reset (NO in S13), the condition for tilting the seat 2 to the tilted position is not satisfied. Therefore, the seat 2 is maintained at the seating position. The control unit 33 determines whether the engine 14 has started (S18). When the engine 14 has started (YES in S18), since the user is using the agricultural work vehicle 1, the control unit 33 transfers the process to S26. When the engine 14 has not started yet (NO in S18), the user is not using the agricultural work vehicle 1. The control unit 33 returns the process to S13.

[0051] When the prohibition flag is set (YES in S14), the condition for tilting the seat 2 to the tilted position is satisfied, but tilting of the seat 2 is prohibited. Therefore, the seat 2 is maintained at the seating position. The control unit 33 transfers the process to S18.

[0052] The case where the first flag is set is a case where it is desirable to protect the seat 2 and the steering wheel 17. The case where the second flag is set is a case where it is not preferable to tilt the seat 2. When both the first flag and the second flag are set, the second flag takes precedence. By tilting the seat 2 to the tilted position when there is no problem even if the seat 2 tilts, the seat 2 and the steering wheel 17 can be protected. In other words, when it is not preferable to tilt the seat 2, tilting of the seat 2 can be prevented.

[0053] Also, since the seat 2 does not always tilt when the agricultural work vehicle 1 is not in use (for example, when the engine 14 is stopped and there is no one on the seat 2 and nothing is there), there is no waste. Moreover, since it is not necessary for the user to act (for example, operate the power button of the drive source 22) only to swing the seat 2, the convenience of the user can be further improved.

[0054] Figure 4 is a flowchart showing the procedure of the first and second flag management process executed in the agricultural work vehicle 1. The control unit 33 determines whether or not the start flag is set (S31). When the start flag is set (YES in S31), the engine 14 starts and the user is using the agricultural work vehicle 1. The control unit 33 ends the first and second flag management process. When the start flag is reset (NO in S31), the user is not using the agricultural work vehicle 1. The control unit 33 determines whether or not the tilt flag is reset (S32).

[0055] When the tilt flag is reset (YES in S32), the seat 2 is not in the tilted position. The control unit 33 determines whether or not the first flag is reset (S33). When the first flag is set (NO in S33), since the seat 2 is being tilted, the control unit 33 returns the process to S31. When the first flag is reset (YES in S33), the seat 2 is in the seated position. The control unit 33 acquires raindrop amount data from the raindrop detection sensor 41 (S34), and determines whether or not the acquired raindrop amount data exceeds a first predetermined threshold value (S35).

[0056] When the raindrop amount data acquired in S34 exceeds the first predetermined threshold value (YES in S35), since it is a situation where the seat 2 should be tilted, the control unit 33 sets the first flag (S36) and moves the process to S31. When the raindrop amount data acquired in S34 is less than or equal to the first predetermined threshold value (NO in S35), the control unit 33 acquires temperature data from the temperature sensor 42 (S37), and determines whether or not the acquired temperature data exceeds a second predetermined threshold value (S38). When the temperature data acquired in S37 exceeds the second predetermined threshold value (YES in S38), since it is a situation where the seat 2 should be tilted, the control unit 33 moves the process to S36. When the temperature data acquired in S37 is less than or equal to the second predetermined threshold value (NO in S38), since it is not a situation where the seat 2 should be tilted, the control unit 33 returns the process to S31.

[0057] When the tilt flag is set (NO in S32), the seat 2 is not in the seating position. The control unit 33 determines whether the second flag is reset (S41). When the second flag is set (NO in S41), since the seat 2 is being returned to the seating position, the control unit 33 returns the process to S31.

[0058] When the second flag is reset (YES in S41), the seat 2 is in the tilted position. The control unit 33 determines whether a detection signal has been input from the human presence sensor 44 (S42). If it has not been input yet (NO in S42), since the user is not approaching the agricultural work vehicle 1, the process of S42 is executed again. When a detection signal is input (YES in S42), since there is a possibility that the user is approaching the agricultural work vehicle 1, the control unit 33 sets the second flag (S43) and moves the process to S31.

[0059] FIG. 5 is a flowchart showing the procedure of the prohibition flag management process executed by the agricultural work vehicle 1. The control unit 33 determines whether the start flag is set (S51). When the start flag is set (YES in S51), the engine 14 starts and the user is using the agricultural work vehicle 1. The control unit 33 ends the prohibition flag management process. When the start flag is reset (NO in S51), the user is not using the agricultural work vehicle 1. The control unit 33 acquires weight data from the weight sensor 43 (S52) and determines whether the acquired weight data exceeds a third predetermined threshold value (S53).

[0060] When the weight data acquired in S53 exceeds the third predetermined threshold value (YES in S53), there is a possibility that the user is sitting on the seat 2 or an object is placed on the seat 2. That is, since it is necessary to prohibit the tilt of the seat 2, the control unit 33 determines whether the prohibition flag is reset (S54). If it is reset (YES in S54), the prohibition flag is set (S55). After the process of S55 is completed, or when the prohibition flag is already set (NO in S54), the control unit 33 returns the process to S51.

[0061] When the weight data acquired in S53 is equal to or less than the third predetermined threshold (NO in S53), the user is not seated on the seat 2 and no object is placed on the seat 2. That is, since there is no need to prohibit the inclination of the seat 2, the control unit 33 determines whether the prohibition flag is set (S56). When the prohibition flag is set (YES in S56), since the user has left the seat 2 or the object has been removed from the seat 2, the control unit 33 resets the prohibition flag (S57). After the process of S57 is completed, or when the prohibition flag is already reset (NO in S56), the control unit 33 returns the process to S51.

[0062] According to the agricultural work vehicle 1, the information processing method including the procedures shown in FIGS. 3 to 5, and the program 3P as described above, the convenience of the user can be improved as described above.

[0063] The agricultural work vehicle 1 is not limited to a rice transplanter, and may be a tractor, a combine, or the like. The raindrop detection sensor 41, the temperature sensor 42, and the weight sensor 43 are not limited to a configuration that outputs raindrop amount data, temperature data, and weight data to the control unit 33. For example, when the raindrops stored in the aforementioned container exceed a predetermined amount, the raindrop detection sensor 41 outputs a signal indicating that the first predetermined condition is satisfied to the control unit 33. When a signal is input from the raindrop detection sensor 41, the control unit 33 sets the first flag.

[0064] The seat detection sensor or the presence detection sensor is not limited to the weight sensor 43. For example, a temperature sensor may be used as the seat detection sensor, and the seating on the seat 2 may be detected by detecting the body temperature with the temperature sensor. Alternatively, a camera may be used as the presence detection sensor, and the presence of an object on the seat 2 may be detected from an image captured by the camera. Instead of the human sensor 44, for example, a camera may be provided, and the approach of the user to the agricultural work vehicle 1 may be detected from the image captured by the camera. Or, instead of the human sensor 44, for example, a wireless receiver may be provided. In this case, the user of the agricultural work vehicle 1 carries a wireless transmitter. The wireless transmitter periodically transmits signals towards the surrounding of the user. When the wireless receiver receives the signal transmitted by the wireless transmitter, it is determined that the user has approached the agricultural work vehicle 1.

[0065] The second predetermined condition is not limited to the approach of the user to the agricultural work vehicle 1. For example, when the seat 2 is tilted by rain, the second predetermined condition may be that the rain stops (for example, the amount of rain drop data is sufficiently lower than the first predetermined threshold). When the seat 2 is tilted due to the high temperature of the seat 2, the second predetermined condition may be that the temperature of the seat 2 sufficiently decreases. Or, the second predetermined condition may be to receive a signal transmitted from a remote controller owned by the user.

[0066] The drive source 22 is not limited to an electric stepping motor. The seat 2 is not limited to a configuration that swings integrally with the shaft 21 that is driven by the drive source 22 to rotate. The seat 2 may swing about the shaft 21 fixed to a support (not shown) provided on the pedestal 16 by being pushed and pulled by a ball screw or a cylinder or the like. Or, the seat 2 may be biased in a direction to tilt to an inclined position by a biasing member (for example, a spring). In this case, the seat 2 is locked at the seating position, and the lock is released by a motor or a solenoid or the like controlled by the control unit 33 in the process of S15 shown in FIG. 3. When the seat 2 is tilted by the biasing force of the biasing member, the process related to the second flag is omitted, and the user may manually return the seat 2 to the seating position.

[0067] The tilt angle of the seat surface 2a is not limited to 70° to 80°. The tilt of the seat 2 is not limited to forward tilt, and may be rearward tilt or tilt in the left - right direction. The seat 2 may be tilted so that the seat surface 2a faces downward. The inclination of the seat 2 is not limited to the inclination of the entire seat 2. For example, only the backrest 2b may incline forward to cover the seat surface 2a (and the steering wheel 17) from above. Or, only the seat surface 2a may incline backward. When only the seat surface 2a inclines backward, the processing related to the second flag is omitted, and the seat 2 may be configured such that when the user sits down toward the inclined seat surface 2a, the seat surface 2a is pushed by the user and returns to the seating position. The backrest 2b may not cover the steering wheel 17 (or the seat surface 2a).

[0068] The program 3P may be written in the auxiliary storage unit 32, for example, during the manufacture of the agricultural work vehicle 1. During or after the manufacture of the agricultural work vehicle 1, the program 3P stored in a computer-readable storage medium 51 ( see Fig. 2) may be read from the storage medium 51 and written in the auxiliary storage unit 32. The program 3P on the cloud may be acquired from the cloud and written in the auxiliary storage unit 32. The control unit 33 may directly execute the program 3P stored in the storage medium 51 or the program 3P on the cloud.

[0069] The embodiments disclosed this time should be considered as illustrative in all respects and not restrictive. The scope of the present invention is not the above-mentioned meaning, but is intended to include the meaning equivalent to the claims and all modifications within the scope of the claims. The independent claims and dependent claims described in the claims can be combined with each other in all possible combinations regardless of the citation form. Further, although the claims use a form (multi-claim form) of describing a claim that cites two or more other claims, it is not limited thereto. A form of describing a multi-claim (multi-multi-claim) that cites at least one multi-claim may be used.

Explanation of Signs

[0070] 1 Agricultural work vehicle 2 Seat 3 Control device (computer) 33 Control Unit 3P Program (Computer Program) 41 Raindrop Detection Sensor (Sensor) 42 Temperature Sensor (Sensor) 43 Weight Sensor (Sensor, Occupancy Detection Sensor, Presence Detection Sensor)

Claims

1. It is provided with a control unit, The control unit acquires sensor data from sensors provided in relation to the seat, and controls the seat to tilt when the sensor data satisfies a predetermined condition. A farming work vehicle characterized by this.

2. The sensor includes a raindrop detection sensor for detecting raindrops, The control unit when the raindrop amount data acquired by the raindrop detection sensor exceeds a predetermined threshold value, tilts the seat surface angle of the seat from a first angle at the seating position to a second angle larger than the first angle for allowing rainwater to flow down. The farming work vehicle according to claim 1, characterized by this.

3. The sensor includes a temperature sensor, The control unit tilts the seat surface when the temperature data acquired by the temperature sensor exceeds a predetermined threshold value. The farming work vehicle according to claim 1, characterized by this.

4. The sensor includes a seating detection sensor for detecting seating on the seat, The control unit does not execute control to tilt the seat when the seating data acquired by the seating detection sensor indicates seating. The farming work vehicle according to claim 1, characterized by this.

5. The sensor includes a presence detection sensor for detecting the presence of an object on the seat, The control unit does not execute control to tilt the seat when the presence data acquired by the presence detection sensor indicates presence. The farming work vehicle according to claim 1, characterized by this.

6. When the seat is tilted, The control unit controls the seat to return to the seating position when a second predetermined condition is satisfied. The farming work vehicle according to any one of claims 1 to 5, characterized by this.

7. acquires sensor data from sensors provided in relation to the seat of a farming work vehicle, and controls the seat to tilt when the sensor data satisfies a predetermined condition. An information processing method characterized by this.

8. acquires sensor data from sensors provided in relation to the seat of a farming work vehicle, and controls the seat to tilt when the sensor data satisfies a predetermined condition A computer program characterized by causing a computer to execute the process.

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