JP2023005798A - Agricultural machine, and system for monitoring component for agricultural machine - Google Patents

Abstract

The present invention provides an agricultural machine and a part monitoring system for the agricultural machine that can easily detect the state of parts that constitute the agricultural machine. An agricultural machine includes a work vehicle composed of parts, a communication device provided in the parts and capable of communicating with at least one of a mobile terminal and a fixed base station, and a communication device provided in the parts and capable of communicating A receiver capable of receiving radio waves transmitted from the device, and a state detection unit detecting the state of the component based on the radio waves received by the receiver. [Selection drawing] Fig. 4

Description

The present invention relates to agricultural machinery and agricultural machinery component monitoring systems.

Conventionally, Patent Document 1 is known as a method for diagnosing the state of parts constituting an agricultural machine such as a backhoe. In Patent Literature 1, a server retrieves the operation status of each component of the agricultural machine from the work machine, and determines whether or not the agricultural machine has a failure based on the retrieved operation status.

JP 2014-25343 A

In the diagnostic method of Patent Document 1, in order to grasp the details of the state of each component of the agricultural machine, the server must go through a complicated process of analyzing the operational status of the agricultural machine.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an agricultural machine and a component monitoring system for the agricultural machine that can easily detect the states of the parts constituting the agricultural machine.

The technical means of the present invention for solving this technical problem are characterized by the following points.
Agricultural machinery includes a work vehicle having parts, a communication device provided in the parts and capable of communicating with at least one of a mobile terminal and a fixed base station, and a radio wave provided in the parts and transmitted from the communication device. and a state detector that detects the state of the component based on the radio waves received by the receiver.

The state detection unit detects a deterioration state of the component as the state of the component.

The state detection unit detects the state of the contents of the part as the state of the part.

The communication device transmits operation information of the work vehicle to one of the mobile terminal and the fixed base station.

The communication device and the receiver are installed with the component interposed therebetween.

A component monitoring system for agricultural machinery comprises: a communication device provided in a component constituting a working vehicle and capable of communicating with at least one of a mobile terminal and a fixed base station; A receiver capable of receiving radio waves and a state detection unit detecting the state of the component based on the radio waves received by the receiver are provided.

The state detection unit detects a deterioration state of the component as the state of the component.

The state detection unit detects the state of the contents of the part as the state of the part.

The communication device transmits operation information of the work vehicle to one of the mobile terminal and the fixed base station.

The communication device and the receiver are installed with the component interposed therebetween.

According to the present invention, the state of parts can be easily detected.

1 is a plan view of a work vehicle; FIG. 1 is a side view of a working vehicle; FIG. It is the perspective view which looked at the 1st fuel tank, the 2nd fuel tank, etc. from the left front upper part. 1 is a block diagram showing the configuration of a parts monitoring system applied to a work vehicle; FIG. It is an example of the graph which shows the relationship between reception intensity and fuel remaining amount. It is a flow chart which shows operation of a parts monitoring system. It is a figure which shows the positional relationship of a communication apparatus, a receiver, and a fuel tank. It is an example of the graph which shows the relationship between reception intensity and fuel remaining amount. It is an example of the graph which shows the relationship between reception intensity and fuel remaining amount.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a plan view of the work vehicle 1, and FIG. 2 is a side view of the work vehicle 1. FIG. The work vehicle 1 is a vehicle for agricultural work, and is a tractor in the case of the present embodiment. Hereinafter, it is assumed that the work vehicle 1 is the tractor 1 . However, the work vehicle 1 is not limited to a tractor.

As shown in FIGS. 1 and 2 , the tractor 1 includes a vehicle body 2 , a travel device 3 and a connecting portion 4 . As shown in FIG. 2 , the vehicle body 2 has a vehicle body frame 5 , a clutch housing 6 and a transmission case 7 . The vehicle body frame 5 extends in the longitudinal direction of the vehicle body 2 . A prime mover 8 is mounted on the body frame 5 . In this embodiment, the prime mover 8 is the engine 8 . A bonnet 29 covers the upper side of the engine 8 . The clutch housing 6 is connected to the rear part of the engine 8 and accommodates the clutch. The transmission case 7 is connected to the rear portion of the clutch housing 6 and accommodates a transmission, a rear wheel differential, and the like. The transmission includes a main transmission and an auxiliary transmission. A PTO shaft 9 protrudes behind the transmission case 7 .

The travel device 3 has front wheels 3</b>F provided at the front portion of the vehicle body 2 and rear wheels 3</b>R provided at the rear portion of the vehicle body 2 . The front wheel 3</b>F is supported by the body frame 5 . The rear wheels 3R are supported by the output shaft of the rear wheel differential. The rear wheels 3R may be tires or crawlers.

The connecting portion 4 is provided at the rear portion of the vehicle body 2 . The connecting portion 4 is a portion for connecting a working device (ground working machine) for working on a field (agricultural land) or the like to the rear portion of the tractor 1 . The working device is driven by driving force transmitted from the PTO shaft 9, for example. Specifically, the work device is a cultivator, a spreader, a sowing machine, or the like, but is not limited to these.

The connecting part 4 is an elevating device that is driven by an actuator such as a hydraulic cylinder to elevate or lower the working device (hereinafter also referred to as "elevating device 4"). In this embodiment, the lifting device 4 is a three-point link mechanism and has a lift arm 4a, a lower link 4b, a top link 4c, a lift rod 4d and a lift cylinder 4e. A horizontal control device (Monroe) is provided at the rear portion of the vehicle body 2 to keep the working device horizontal.

A vehicle body 2 is equipped with a cabin 11 surrounding a driver's seat. As shown in FIGS. 1 and 2, a step 140 for getting on and off is provided on the side and below the cabin 11 . The boarding/alighting steps 140 are provided on the left and right sides of the cabin 11, respectively. A step 140 for getting on and off is provided between the front wheel 3F and the rear wheel 3R. The boarding/alighting step 140 includes an upper step 141 and a lower step 142 . The upper step 141 is provided below the entrance/exit 88 of the cabin 11 . The lower step 142 is provided below the upper step 141 .

The upper step and the lower step provided on the left side of the cabin 11 are hereinafter referred to as "upper step 141L" and "lower step 142L", respectively. An upper step and a lower step provided on the right side of the cabin 11 are referred to as "upper step 141R" and "lower step 142R", respectively.

As shown in FIG. 2, the upper steps 141L and 141R are supported by a support 143 attached to the lower portion of the cabin 11. As shown in FIG. The positions of the upper steps 141L and 141R with respect to the vehicle body 2 are fixed by a support 143. As shown in FIG. The support 143 has a front support 143a, a rear support 143b and a connecting plate 143c. The front support 143a is connected to the front portion of the upper step 141L and extends upward. The rear support 143b is connected to the rear portion of the upper step 141L and extends upward. The connecting plate 143c connects the front support 143a and the rear support 143b.

As shown in FIG. 1, the lower steps 142L, 142R are arranged at positions shifted outward of the vehicle body with respect to the upper steps 141L, 141R. Specifically, the lower step 142L is arranged at a position shifted to the left with respect to the upper step 141L. The lower step 142R is arranged at a position shifted to the right with respect to the upper step 141R.

FIG. 3 is a perspective view of the first fuel tank 165L, the second fuel tank 165R, etc., viewed from the left front upper side. As shown in FIG. 3, the main frame 154 supports the first fuel tank 165L and the second fuel tank 165R that store fuel. Fuel tank 165 includes a first fuel tank 165L and a second fuel tank 165R. The first fuel tank 165L is arranged on the left side of the clutch housing 6. As shown in FIG. The second fuel tank 165R is arranged on the right side of the clutch housing 6. As shown in FIG. In the following description, the first fuel tank 165L and the second fuel tank 165R will be referred to as the fuel tank 165 without distinction. Also, the main frame 154 supports the urea tank 160 and the clutch housing 6 .

That is, the tractor 1 includes a lifting device (connecting portion) 4, a body frame 5, a clutch housing 6, a transmission case 7, a prime mover (engine) 8, a cabin 11, a bonnet 29, a fuel tank 165, a main frame 154, and various other components. parts are provided.

Among the above-described parts, the lifting device (connecting portion) 4, the body frame 5, the clutch housing 6, the transmission case 7, the prime mover 8, the cabin 11, the bonnet 29, and the main frame 154 are parts that constitute the skeleton of the tractor 1. .

FIG. 4 is a block diagram showing the configuration of the parts monitoring system 100 applied to the tractor 1. As shown in FIG. This component monitoring system 100 includes a communication device 50 , a receiver 60 and a control device 70 .

The communication device 50 is provided on one side of the fuel tank 165, as shown in FIG. Communication device 50 is configured to communicate with at least one of mobile terminal 200 and fixed base station 300 . For example, the communication device 50 transmits operating information according to the operating state of the tractor 1 to either the mobile terminal 200 or the fixed base station 300 . Specifically, the operation information includes operation signals when operating tools (levers, switches, dials, etc.) provided on the tractor 1, detection signals from various sensors mounted on the vehicle body 2, and parts states (described later). and the remaining amount of fuel in the fuel tank 165, the state of the main frame 154, and the like. In other words, the communication device 50 can transmit operational information including component states to at least one of the mobile terminal 200 and the fixed base station 300 . In the above-described embodiment, the communication device 50 transmits the operation information including the state of the parts to at least one of the mobile terminal 200 and the fixed base station 300. However, the operation information excluding the state of the parts is transmitted. may

The receiver 60 is provided on one side of the fuel tank 165 and the other side opposite to that of the fuel tank 165, as shown in FIG. Receiver 60 is configured to be able to receive radio waves transmitted from communication device 50 . Communication device 50 and receiver 60 are installed with fuel tank 165 interposed therebetween, as shown in FIG. A straight line connecting the communication device 50 and the receiver 60 (radio wave path) is blocked by the fuel tank 165 . Therefore, the intensity of radio waves received by the receiver 60 varies depending on the state of deterioration of the fuel tank 165 and the amount of content in the fuel tank 165 .

The control device 70 is arranged in the cabin 11 of the tractor 1 . The control device 70 includes an arithmetic unit 71 , a storage unit 72 , a state detection unit 73 and the like, and executes predetermined control based on a program stored in the storage unit 72 .

More specifically, the control device 70 receives operation signals when operation tools (levers, switches, dials, etc.) installed around the cabin 11 are operated, and detection signals of various sensors mounted on the vehicle body 2. The traveling system and work system of the tractor 1 are controlled based on the above.

State detector 73 detects the state of fuel tank 165 based on the radio waves received by receiver 60 .
The intensity of the radio waves received by the receiver 60 varies depending on the state of deterioration (deterioration of the resin) of the fuel tank 165, that is, the degree of corrosion of the fuel tank 165 and the like.
Here, data and graphs showing the relationship between the radio wave intensity and the remaining amount of fuel, and data and graphs showing the radio wave intensity and the deterioration state of the fuel tank 165 when the tank is full, for example, are stored in the storage unit 72 .

FIG. 5 is an example of a graph showing the relationship between reception intensity and remaining amount of fuel. The intensity of the radio waves received by the receiver 60 also varies depending on the state of the contents of the fuel tank 165 , that is, the amount of fuel remaining inside the fuel tank 165 . As shown in FIG. 5, when the amount of fuel is large, the radio waves that reach the receiver 60 from the communication device 50 through the fuel tank 165 are weak, and the strength of the radio waves received by the receiver 60 is reduced. On the other hand, as shown in FIG. 5, when the amount of fuel is small, radio waves from the communication device 50 pass through the fuel tank 165 and reach the receiver 60 more easily, and the strength of the radio waves received by the receiver 60 increases. . Utilizing this, the state detection unit 73 of the present embodiment detects the remaining amount of fuel remaining inside the fuel tank 165 .

Next, the operation of the parts monitoring system 100 will be described with reference to the flowchart shown in FIG.

First, when the communication device 50 receives a command from the fixed base station 300, for example, it collects data based on the command and transmits the data to the fixed base station 300 by radio waves (step S1).

Part of the radio wave is received by the receiver 60 through the fuel tank 165 . The state detection unit 73 of the control device 70 detects the intensity of the radio waves received by the receiver 60 (step S2).

Based on the detected radio wave intensity, the calculation unit 71 obtains the remaining amount of fuel in the fuel tank 165 (step S3).

The remaining amount of fuel obtained in step S3 is transmitted to mobile terminal 200 and fixed base station 300 by communication device 50 (step S4). The remaining amount of fuel obtained in step S3 may be displayed on a fuel gauge (not shown) provided in cabin 11 .

In this way, since the remaining amount of fuel in the fuel tank 165 is detected from the radio wave intensity received by the receiver 60, it is possible to easily detect the amount of fuel remaining in the fuel tank 165 without the need for complicated analysis as in the conventional art. Become.

Further, the deterioration state of the fuel tank 165 is obtained from the radio wave intensity of the receiver 60 when the tank is full. This is because it is affected by the amount of decrease in the remaining amount of fuel except when the tank is full.

In this embodiment, data and graphs showing the relationship between the radio wave intensity and the remaining amount of fuel, and data and graphs showing the radio wave intensity and the state of deterioration of the fuel tank 165 when the fuel tank 165 is full, for example, are stored in the storage unit 72 .

Further, since the remaining amount of fuel and the state of deterioration of the fuel tank 165 are detected from the received intensity of the radio waves for transmitting data, only one receiver 60 is required, and the number of parts can be reduced.

Furthermore, since radio waves for transmitting data are used to detect the remaining amount of fuel and the state of deterioration of the fuel tank 165, a transmitter for outputting radio waves exclusively for detecting these is not required. Therefore, the number of parts can be further reduced.

The communication device 50 and the receiver 60 are provided on opposite sides of the fuel tank 165. For example, as shown in FIG. It may be provided on the plate and the other on the bottom plate.

FIG. 8 is an example of a graph showing the relationship between the reception intensity of radio waves received by the receiver 60 and the remaining amount of fuel. As shown in FIG. 8, when the amount of fuel is large, the radio waves that reach the receiver 60 from the communication device 50 through the fuel tank 165 are weak, and the strength of the radio waves received by the receiver 60 is reduced. On the other hand, as shown in FIG. 5, when the amount of fuel is small, radio waves from the communication device 50 pass through the fuel tank 165 and reach the receiver 60 more easily, and the strength of the radio waves received by the receiver 60 is linear. rise to Utilizing this, the state detector 73 of the present embodiment detects the remaining amount of fuel remaining inside the fuel tank 165 .

In addition, in this embodiment, an example of detecting the state of the fuel tank 165 as the state of the component has been shown. However, it is not limited to this. By providing a communication device 50 on one side of a main frame 154 (see FIG. 3), for example, a component that constitutes the framework of the work vehicle 1, and a receiver 60 on the other side of the main frame 154, the main frame 154 state may be detected. FIG. 9 is an example of a graph showing the relationship between the reception intensity of radio waves received by the receiver 60 and the remaining amount of fuel. As shown in FIG. 9, the reception strength differs between the normal state and the aging state. The state of the mainframe 154 can be detected using such properties.

In the above-described embodiment, the fuel tank 165 and the main frame 154 are illustrated as the parts, but the parts include the lifting device (connecting portion) 4, the body frame 5, the clutch housing 6, the transmission case 7, the prime mover (engine) 8, It may be the cabin 11, the bonnet 29, or the like. That is, by providing the communication device 50 and the receiver 60 to at least one of the lifting device (connecting portion) 4, the body frame 5, the clutch housing 6, the transmission case 7, the prime mover (engine) 8, the cabin 11, and the bonnet 29, , the lifting device (connecting portion) 4, the body frame 5, the clutch housing 6, the transmission case 7, the motor (engine) 8, the cabin 11, and the bonnet 29 can be detected.

As described above, according to the present invention, while data such as operation information is transmitted from the work vehicle 1 to external devices (mobile terminal 200, fixed base station 300), radio waves for transmitting operation information and the like are transmitted from the communication device 50. is received by the receiver 60 attached to the part, the state of the part can be detected, and the communication device 50 can be used not only as a communication device but also as part of a sensor for detecting the state of the part. can be done.

In this embodiment, the tractor is exemplified, but the application target of the present invention is not limited to this, and can be applied to various working machines such as agricultural machines such as backhoes, tractors, combine harvesters, and rice transplanters.

It should be considered that the embodiments disclosed this time are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the scope of the claims rather than the above description, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.

1: Tractor 2: Car body 3: Traveling device 3F: Front wheel 3R: Rear wheel 4: Elevating device (connecting part)
4a: lift arm 4b: lower link 4c: top link 4d: lift rod 4e: lift cylinder 5: body frame 6: clutch housing 7: transmission case 8: prime mover 9: PTO shaft 11: cabin 29: bonnet 50: communication device 60 : Receiver 70 : Control device 71 : Calculation unit 72 : Storage unit 73 : State detection unit 88 : Doorway 100 : Parts monitoring system 140 : Boarding step 141 : Upper step 141L : Upper step 141R : Upper step 142 : Lower step 142L : Lower step 142R : Lower step 143 : Support 143a : Front support 143b : Rear support 143c : Connecting plate 154 : Main frame 160 : Urea tank 165 : Fuel tank (parts)
165L: first fuel tank 165R: second fuel tank 200: portable terminal 300: fixed base station

Claims (10)

a work vehicle with parts;
a communication device provided on the component and capable of communicating with at least one of a mobile terminal and a fixed base station;
a receiver provided in the component and capable of receiving radio waves transmitted from the communication device;
a state detection unit that detects the state of the component based on the radio waves received by the receiver;
Agricultural machinery equipped with The state detection unit is
2. The agricultural machine according to claim 1, wherein a deterioration state of said part is detected as said state of said part. The state detection unit is
3. The agricultural machine according to claim 1, wherein the state of the component is detected as the state of the component. The communication device
4. The agricultural machine according to any one of claims 1 to 3, wherein operation information according to the operating state of said working vehicle is transmitted to either said mobile terminal or fixed base station. The communication device and the receiver are
5. The agricultural machine according to any one of claims 1 to 4, which is installed with said parts sandwiched therebetween. a communication device provided in a component constituting a work vehicle and capable of communicating with at least one of a mobile terminal and a fixed base station;
a receiver provided in the component and capable of receiving radio waves transmitted from the communication device;
a state detection unit that detects the state of the component based on the radio waves received by the receiver;
parts monitoring system for agricultural machinery. The state detection unit is
7. The parts monitoring system for agricultural machinery according to claim 6, wherein deterioration of the parts is detected as the condition of the parts. The state detection unit is
8. The parts monitoring system for agricultural machinery according to claim 6 or 7, wherein the state of the part is detected as the state of the part. The communication device
9. The agricultural machinery parts monitoring system according to any one of claims 6 to 8, wherein operation information corresponding to the operating state of the work vehicle is transmitted to one of the mobile terminal and the fixed base station. The communication device and the receiver are
10. The parts monitoring system for an agricultural machine according to any one of claims 6 to 9, which is installed with said parts interposed therebetween.

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