JPH0668274A - Data collecting system of agricultural machinery - Google Patents

Abstract

PURPOSE:To exactly collect working data by transmitting sensor information after the conversion factor of the sensor information from an agricultural machinery to a control terminal equipment is transmitted, and recording and displaying the working data obtained by multiplying these on the control termi nal equipment. CONSTITUTION:A vehicle speed conversion factor and fuel flow rate conversion factor are transmitted from a control device 1 to a data collecting device 20, and by multiplying the detection pulse numbers of a vehicle speed sensor 2A and a fuel flow rate sensor 2B by these, the pulse numbers are converted into the instantaneous values of the speed and fuel flow rate and displayed on a display part 23. At the same time, the transmissions of the pulse numbers of the vehicle speed sensor 2A and fuel flow rate sensor 2B are started and these pulse numbers are integrated while a work is performed. Next, a running distance is calculated by multiplying the integrated value of a speed pulse by the conversion factor and fuel consumption amount is calculated by multiplying the integrated value of a fuel flow rate pulse by the conversion factor. The obtained running distance and fuel consumption amount are recorded on a RAM card 29 and all the collection data is displayed on the display part 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data collection system for collecting sensor information of agricultural machines such as tractors and combine harvesters in order to grasp the working status of such machines.

[0002]

2. Description of the Related Art With the streamlining of agricultural management and the improvement of performance of agricultural machinery, various work data such as mileage per one field or day (work volume) and fuel consumption are collected and compared. It is becoming more and more important to use it for future work planning. The method conventionally used to collect these data is to read the values of the fuel gauge and rangefinder attached to the agricultural machine at the start and end of the work and calculate the difference. The accuracy of the obtained data was low, and the data collection work and the data organization after the collection were troublesome.

[0003]

In order to perform the data analysis of the agricultural machine with high accuracy, the sensor information from the agricultural machine is received and the work data calculated from this, such as mileage and fuel consumption, is calculated. It is desirable to have a management terminal device that can record and display, but since the data from the sensor is different for each model and model of agricultural machinery, if the model and sensor are different, the management terminal device is also suitable for it. You need to replace it with something.

For example, a vehicle speed sensor and a fuel flow rate sensor are
It is a method to generate pulses according to the instantaneous value of vehicle speed and fuel flow rate, and the mileage or fuel consumption is calculated by integrating the number of detected pulses and multiplying this by an appropriate conversion coefficient. Since the number of vehicle speed pulses per meter and the number of fuel flow rate pulses per liter of this type of sensor are different depending on the type and mounting position, the conversion coefficient is different for each model and each model. For this reason, it is uneconomical to use a separate management terminal for each agricultural machine.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a management terminal device with versatility that can be applied to each agricultural machine. To solve this problem, the following structure is provided. And That is, a data collection system according to the present invention includes a management terminal device including a data recording means and a data display means, and a control device for an agricultural machine communicatively connected to the management terminal device. When transmitting the sensor information detected by the sensor of the agricultural machine to the management terminal device, the conversion coefficient of the sensor information which is predetermined for each agricultural machine is transmitted.

[0006]

Operation: First, the control unit of the agricultural machine transmits the conversion factor of the sensor information to the management terminal, then the sensor information is transmitted, and the work data obtained by multiplying these is recorded and displayed on the management terminal. Therefore, even if the type or mounting position of the sensor changes, it can be dealt with only by changing the conversion coefficient.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A data collection system of the present invention will be described below based on the embodiments shown in the drawings.

FIG. 1 is a block diagram of a data collection system. Reference numeral 1 in the figure is a control device for an agricultural machine (for example, a tractor), and is responsible for overall control of the traveling unit and each operating part. Signals from the various sensors 2, ..., Operation switches 3, ... And setting devices 4, ... Are input to the CPU 7 via the input interface 6, and C based on the input signals.
An output signal is output from the PU 7 via the output interface 9 to an actuator 10 such as a motor, solenoid or valve. Necessary input information and output information are displayed on the display devices 11 such as meters and lamps.

The vehicle speed sensor 2A and the fuel flow rate sensor 2B among the sensors generate sensor pulses according to the instantaneous value of the vehicle speed or the fuel flow rate, and the sensor pulse count number n ₁ within a fixed period T. , N ₂ , ...
Is transmitted to the CPU 7 with a communication pulse (see FIG. 2).

Other sensors include a lower link sensor, a lift arm angle sensor, and a horizontal sensor in the case of a tractor, and a cutting width sensor in the case of a combine. Since the detection signals of these sensors are direct currents, the detection signals are converted by the A / D converter 13 and then input to the CPU 7.

Reference numeral 20 in FIG. 1 denotes a data collecting device (management terminal device), which is used by being connected to the control device 1 so as to be communicable. The data collection device 20 includes a CPU 21 and an operation unit 2.
2, a main body 20a provided with a display unit 23, a RAM 25, a Chinese character ROM 26, etc., and a ROM card 28 and a RAM card 29 as a storage carrier that is selectively mounted on the main body. The ROM card 28 individually stores control programs for each model and model of the agricultural machine. Further, the RAM card 29 can store data for each predetermined item. One of the data items in Figure 9
Here is an example:

The data collection device 20 is shown in, for example, FIGS.
It has the appearance as shown in. On the front of the box-shaped main body 20a, an ON / OFF switch 31 as the operation unit 22,
32, operation switches 33, ..., Input keys 34 ,.
Insertion ports 36 and 37 for the card 28 and the RAM card 29
And a printer connector 38.

Communication between the control device 1 and the data collection device 20 is performed via the communication interfaces 40 and 41. The illustrated example is a method by optical communication, in which the optical interface 41 is provided on the bottom surface of the mounting groove 43 of the main body of the data collection device, and the communication interface unit 44 (illustrated in FIG. 6) on the control device side is provided. Is also provided with a similar optical interface. When the data collecting device main body 20a is attached to the communication interface unit 44, both optical interfaces face each other, and information can be exchanged between both devices. By performing the optical communication in this way, there is an advantage that the data collection device 20 can be easily attached to and detached from the agricultural machine, and the communication is less likely to be influenced by vibration.

When the agricultural machine is a tractor, for example, as shown in FIG. 7, if the communication interface unit 44 is attached to the center pillar 46 in the cabin 45, the data collecting device 20 while sitting on the cockpit is provided.
It is convenient because you can perform the operation.

The operation method of the data collection device 20 will be described below. (See Figure 8).

When the data collecting device 20 is attached to the communication interface unit 44 and the ON switch 31 is pressed (power ON), communication between the data collecting device 20 and the control device 1 is started. If the communication condition is good, it is first checked whether the control program of the ROM card 28 matches the actual model and model of the agricultural machine. This confirmation operation is performed by transmitting a connection confirmation command from the data collection device 20 to the control device 2.

If the control program matches the model and model of the agricultural machine, the field No. Is input using the input keys 34, .... This is the case according to the data items in FIG. Instead of customer number. And worker N
o. You may enter. In short, it can be any one that is convenient for identification.

Subsequently, the control device 1 to the data collecting device 2
The vehicle speed conversion coefficient a ₁ and the fuel flow rate conversion coefficient a ₂ are transmitted to 0. a ₁ and a ₂ are coefficients set for each model and model of the agricultural machine, and are multiplied by the number of detection pulses of the vehicle speed sensor 20A and the fuel flow rate sensor 20B to be converted into the instantaneous values of the vehicle speed and the fuel flow rate. It These conversion factors a ₁ and a ₂ are stored in the RAM 25 until the end of work.

When the start key switch 33A is pressed (start SW is ON) after the above operation is completed, the start time is recorded and displayed on the liquid crystal display unit 23 as shown in FIG. At the same time, transmission of the pulse numbers n and m of the vehicle speed sensor and the fuel flow rate sensor is started. During work, these pulse numbers n and m are successively added.

Press the end switch 33B (the end SW is O
N) and the integrated value 1 of the vehicle speed pulse are multiplied by the conversion coefficient a ₁ to calculate the traveling distance L, and the integrated value w of the fuel flow rate pulse is also multiplied by the conversion coefficient a ₂ to calculate the fuel consumption amount W. The obtained travel distance L and fuel consumption W are RA
The data is recorded in the M card 29, the end time is also recorded, and all the collected data are displayed on the liquid crystal display unit 23 as shown in FIG.

Further, when the work is interrupted due to meals or the like, if the interruption switch 33C is pressed, the work data being collected can be kept in a suspended state even if the agricultural machine is stopped. When the work is restarted, the data collection work is restarted by pressing the interruption key 33C again. In addition, I intended to suspend work temporarily, but for some reason I may finish the work of the day, so
It is advisable to provide an automatic end function that automatically closes the data file after a certain period of time in the suspended state.

As described above, since the sensor information of the agricultural machine is received and necessary work data is calculated, the accuracy of the obtained work data is extremely high. Further, since the predetermined conversion coefficient determined for each model and model of the agricultural machine is transmitted to the data collection device 20 in advance, and then the sensor information is transmitted, various data collection devices 20 can be used. It can be shared with other agricultural machines.

The sensor used in this data collection system is a type of sensor that transmits information by pulse signals. As this type of sensor, in addition to the vehicle speed sensor, the fuel flow rate sensor, a chemical spray amount sensor, etc. is there. Moreover, it goes without saying that the agricultural machine can be used not only as a moving machine such as a tractor and a combine machine but also as a stationary machine.

FIG. 6 is an explanatory diagram of the management system, in which the handy printer 50 is connected to the printer connector 38 of the data collecting device 20 and the obtained work data can be directly printed on the recording paper or the PAM card 29. The recorded data can be read by the memory card reader 51, input to the personal computer 52, and the work data can be printed on the printer 53 connected to the personal computer 52.

Further, the communication interface unit 44
The work data can be directly input from the data collection device 20 to the personal computer 52 by connecting the communication interface unit to the personal computer 52 so that the work can be detached from the agricultural machine.

[0026]

As described above, the data collection system for agricultural machines according to the present invention can be used regardless of the model or model of the agricultural machine. Can be collected accurately and easily.

[Brief description of drawings]

FIG. 1 is a block diagram of a data collection system according to the present invention.

FIG. 2 is an explanatory diagram showing a detection method of a sensor.

FIG. 3 is an external front view of the data collection device.

FIG. 4 is an external perspective view of a data collection device.

5 is a view on arrow A in FIG.

FIG. 6 is an explanatory diagram of a data management system.

FIG. 7 is a diagram showing an example of how the data collection device is attached.

FIG. 8 is a flowchart of the operation of the data collection device.

FIG. 9 is a diagram showing an example of data items.

FIG. 10 is a first display example of the display unit.

FIG. 11 is a second display example of the display unit.

[Explanation of symbols]

 1 Control Device 2 Sensor 2A Vehicle Speed Sensor 2B Fuel Flow Rate Sensor 20 Data Collection Device (Management Terminal) 22 Operation Unit 23 Display Unit 28 ROM Card 29 RAM Card

Claims (1)

[Claims] 1. A management terminal device comprising a data recording means and a data display means, and a control device for an agricultural machine communicatively connected to the management terminal device, wherein the control device controls the management terminal device to perform agriculture. A data collection system for an agricultural machine, characterized in that when transmitting sensor information detected by a sensor of the machine, a conversion coefficient of the sensor information which is predetermined for each agricultural machine is transmitted.