JP3095894B2 - Farm management device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a versatile management system for a farm that adjusts weather conditions by stirring the air near the ground surface in order to prevent frost and frost damage in orchards, tea gardens, and the like, and to prevent high-temperature damage during house cultivation. .

[0002]

2. Description of the Related Art Frost frost damage occurs when the ground is cooled by radiation cooling and the ground surface temperature becomes lower than the atmospheric temperature. To prevent this, the ground surface temperature may be maintained at 0 ° C. or higher. According to the past weather data, when the surface temperature at the time of frost generation was −3 ° C., the temperature of the atmosphere at a height of 8 m above the ground surface was + 3 ° C. Therefore, a management method has been proposed in which the temperature near the ground surface does not become 0 ° C. or less by driving a fan and stirring the atmosphere when the air temperature drops significantly.

[0003]

However, in a farm such as an orchard, it is generally difficult to secure a power source for driving a fan motor because it is often far from a house, and for example, the above-mentioned frost and frost damage is prevented. For this reason, the vehicle has to be driven around dawn, for example, and has a great difficulty in that monitoring is difficult due to various driving times.

[0004] The present invention has been made in view of such a point,
The purpose is to use the engine generator as a power source and to control the start and stop of multiple fan motors by starting and stopping the engine generator so that the fan motors are automatically operated only when necessary. The point is to provide a farm management device that has been established.

[0005]

In order to achieve the above-mentioned object, the present invention provides a method in which fans arranged at a plurality of locations on a farm are each driven appropriately by a fan motor to agitate the air in the farm to a predetermined level. In a farm management apparatus that maintains the weather conditions, an engine generator that includes a battery and drives a generator by an engine that is started by a start motor;
A power distribution device that distributes and supplies the generated power of the generator to the plurality of fan motors, a weather detection sensor that detects a weather condition in the farm, and starts the engine generator based on a detection signal of the weather sensor. And an automatic operation device for instructing the stop, and wherein the start and stop of the engine generator are controlled to start and stop the plurality of fan motors.

[0006] Based on the weather condition of the farm detected by the weather sensor, the automatic driving device automatically starts the engine generator, drives the fan motor via the power distribution device, stirs the atmosphere, and controls the weather in the farm. Conditions can be adjusted,
Farms, etc., far from homes can be monitored at all times and managed unattended.

[0007]

[Embodiment] An orchard management apparatus shown in FIGS. 1 to 4 as an embodiment of a farm management apparatus will be described below.

FIG. 1 is an external view of a system for managing an orchard according to this embodiment. At the four corners of a substantially rectangular orchard 100, columns 101 are erected, and a fan motor 16 is mounted at a tip of a height of several meters above the ground so that the fan 16a is directed inward of the orchard and obliquely downward. ing. A temperature sensor 15 is attached to the support 101 near the ground surface.

Aside from the orchard 100, an engine generator 1, a control box 102, a solar charger 17, and a patrol light 120 are installed. The patrol light 20 is an operation display device that allows the user to visually recognize that the engine generator 1 is operating from a distance.

This orchard management device is a management device for protecting the orchard 100 particularly from frost damage, and when the temperature sensor 15 detects that the temperature near the ground surface has become lower than a predetermined value, the fan motor 16 The orchard 100 is driven by blowing high-temperature air several meters above the ground near the surface of the orchard 100 to stir the air in the orchard 100 to increase the surface temperature and prevent the occurrence of frost. To protect.

FIG. 2 shows the overall configuration of the orchard management apparatus according to the present invention. Inside the control box 102,
An automatic operation unit 103 is built in, and a power distribution device 104 for distributing electric power to each fan motor 16 and a terminal 105 for connecting a connection line with each temperature sensor 15 to the automatic operation unit 103 are provided.
Etc. are provided. The automatic operation unit 103 includes an automatic operation control circuit 20 and a load input delay circuit 70.

The five electric wires 106 extending from the remote control terminal 7 of the engine generator 1 and the two electric wires 107 extending from the solar charger 17 are connected to the automatic operation control circuit 20 in the automatic operation unit 103. Also, three electric wires 108 extending from each of the four temperature sensors 15 are connected via a terminal 105 to a wiring section 109 wired for each wire in a wired OR manner.
Finally, three wires 110 are connected to the automatic operation unit 103
Is connected to the automatic operation control circuit 20 of FIG.

Further, three output lines 111 of three-phase 200V of the engine generator 1 are connected to a power distribution device 104, and branch to electromagnetic switches 112 provided corresponding to the four fan motors 16, respectively. The switch 112a of the electromagnetic switch 112 is connected to one switch contact, and the other switch contact is connected to each fan motor 16 via a power line 113.

One end of each of the coils 112b of the four electromagnetic switches 112 is connected to the W line of the output line 111, and one of the coils 112b of one of the four electromagnetic switches 12 is connected to the coil 112b.
Is connected to the U line of the electromagnetic switch 112, while the other ends of the coils 112b of the other three electromagnetic switches 112 are connected to the connecting wires.
114, the load input delay circuit 70 of the automatic operation unit 103
It is connected to the. Further, a connection line 130 paired with the connection line 114 is connected to the U line of the output line 111 from the load input delay circuit 70.

The patrol light 120 and the engine generator 1 are connected by a single-phase 100V power line 115.

Note that three wires extending from the temperature sensor 15
One of them is a ground line, the other is a power line to which battery power is supplied, and the other is a detection signal line.When the temperature falls below the set temperature, the power line and the detection signal line are short-circuited,
Battery power is supplied to the detection signal line. Since the wiring section 109 is wired in a wired OR manner, when any one of the temperature sensors 15 detects that the temperature has become lower than the set temperature, the signal is output to a detection signal line of the electric wire 110.

Next, in the orchard management apparatus having the entire wiring structure as described above, the automatic operation control circuit 20 and the load input delay circuit 70 will be described in order to easily explain the automatic operation unit 103 for automatic operation. It will be explained separately. First, the automatic operation control circuit 20 will be described with reference to the circuit diagram of FIG.

The engine generator 1 used here
Is constituted by a packaged engine generator as a mobile power source having a starting motor 4 and a battery 5 in addition to the engine 2 and the generator 3, and further charges the battery 5 by an output of a magnet generator attached to the engine 2. It has a charging coil 6.

The engine generator 1 has a remote control terminal 7 for connection to an external control device.

Here, a brief description of the remote control terminal will be given. This type of engine generator is provided with an operation switch for starting / running / stopping operation constituted by a combination switch on the engine generator itself. However, in many cases, a remote control terminal for performing the same operation by remote control is provided. For example, Japanese Patent Publication No. 61-29239 discloses such a technique.

In this embodiment, the remote control terminal 7
Are the output terminal BAT of the battery 5 and the input terminal L of the operation signal.
D, start signal input terminal ST, ground G, battery 10
It is composed of at least five connection terminals of the terminal CHG of the output line 8 of the charging coil 6 for charging and for detecting the rise of the engine.

A rectifying diode 9 is interposed between the charging coil 6 and the output line 8, and a backflow preventing diode 10 is interposed on the charging line from the output line 8 to the battery 5. Although the charging current from the charging coil 6 flows, the current from the battery 5 is prevented from riding on the output line 8.

The automatic operation control circuit 20 has eight connection terminals with external devices, and each terminal is connected to a remote control terminal 7, a temperature sensor 15, and a predetermined terminal of the solar charger 17 of the engine generator 1, respectively.

In the automatic operation control circuit 20, the CB terminal is the BAT terminal of the remote control terminal 7 of the engine generator 1, the CL terminal is the LD terminal of the remote control terminal 7, and the CS terminal is the remote control terminal 7.
The ST terminal and the CC terminal are the CHG terminal of the remote control terminal 7 and the CS ₁ terminal.
Terminal and CS ₂ switch contacts 15a of each terminal temperature sensor 15, and 15b, CO terminal is connected to the + output terminal of the solar battery charger 17.

The CG terminal of the automatic operation control circuit 20 is connected to the engine generator 1, the temperature sensor 15, and the earth terminal of the solar charger 17.

The automatic operation control circuit 20 connected to each device as described above is roughly divided into three circuits, namely, a start circuit 21, an engine start determination circuit 22, and a switching control circuit 23, and two other three terminals. It has regulators 24 and 25.

One three-terminal regulator 24 has one terminal grounded, the other input / output terminals grounded via capacitors 30 and 31, respectively, and the input terminal is connected to an external connection terminal CB and the output terminal is connected to an external connection terminal. It is connected to a terminal CS _1.

The CS ₁ terminal is a switch terminal 15 of the temperature sensor 15.
a, and the CB terminal is connected to the BAT terminal of the engine generator 1, so that the output of the battery 5 of the engine generator 1 is always supplied as standby power of the temperature sensor 15 via the three-terminal regulator 24. I have.

The other three-terminal regulator 25 is
One terminal is grounded, and the other input / output terminals are
Is grounded through a 32, input terminal is connected to the external connection terminal CS _2, the ground side terminal of the output terminals and the capacitor 33 are each respectively with the output voltage V _DD, V _SS It is used as an operating power supply for the components (IC circuits) of the circuits 21, 22, and 23.

The switching control circuit 23 controls a relay switch, and the two switches 36 and 37 are operated simultaneously by the excitation of the relay coil 35, and the contact of the switch 36 is connected to the external connection terminal CB. Connected to one end of a relay coil 35 via a diode 38, and the movable side is connected to an external connection terminal CL.
Therefore, the relay coil 35 is excited and the switch 36 is turned on.
If so, the battery voltage is input to the LD terminal of the engine generator 1 as an operation signal, and the operation of the engine 2 is continued.

As for both switch contacts of the switch 37, the normally closed contact is connected to the external output terminal CO via a diode 46 for preventing backflow, and the normally open contact is connected to the input side of the engine start determination circuit 22. The movable side is an external output terminal
Connected to CC. Therefore, when the relay coil 35 is energized and the switch 37 is connected to the normally open side, the output of the charging coil 6 is supplied to the input side of the engine start determination circuit 22 and the output of the solar charger 17 is output to the automatic operation control circuit. When the relay coil 35 is demagnetized and the switch 37 is connected to the normally closed side, the power from the solar charger 17 is input to the CHG terminal of the engine generator 1, and the output line 8 and the diode The battery 5 is charged via 10.

A surge absorbing diode 39 is inserted in parallel with the relay coil 35. One end of the diode 39 is connected to the collector terminal of the transistor 40 whose emitter is grounded.
, The relay coil 35 is excited.

The base terminal of the transistor 40 is connected to the output terminal of the NAND circuit 42 via the resistor 41, and the two input terminals of the NAND circuit 42 are connected to the two output terminals Q9 and Q12 of the counter 43.
It is connected to the.

On the other hand, the switching control circuit 23 has a 50 Hz oscillator 45 in which three NOT circuits are connected in series and a feedback loop is formed by a resistor and a capacitor. The output terminal of the oscillator 45 is one input of the NAND circuit 44. The output terminal of the NAND circuit 44 is connected to the count input terminal CL of the counter 43, and the other input terminal of the NAND circuit 44 is connected to the NAND circuit 42.
Output terminal.

The NAND circuit 44 functions as a gate, and when the output of the NAND circuit 42 is at the L level, one input of the NAND circuit 44 is at the L level and the output is always at the H level. No input is made, but when the output of the NAND circuit 42 is H, one input of the NAND circuit 44 is at H level and the oscillation pulse of the oscillator 45 is input to the counter 43, and the counter 43 counts.

When the output terminal Q9 of the counter 43 is counting at the ninth bit count value, an H level signal and an L level signal are alternately output every 5 seconds, and the output terminal Q12 is
H level and L level signals are output alternately every 40 seconds with the count value of the 12th bit.

Therefore, 45 seconds after the start of counting, 2
The two output terminals Q9 and Q12 both output an H level signal, and both are input to the NAND circuit 42.
The output of the circuit 42 becomes L level and the transistor 40 is turned off, but within 45 seconds, the output of the NAND circuit 42 is H and the transistor 40 is turned on.

That is, when the counter 43 starts counting, the relay coil 35 is excited for 45 seconds and the switch 36 is turned on.
N, the switch 37 is turned off, but after 45 seconds, the relay coil 35 is demagnetized, the switch 36 is turned off, and the switch 37 is turned on.

Next, the engine start determination circuit 22 is connected to the delay circuit having the Zener diode 51 and the resistor 52 connected in parallel with the capacitor 53 via the resistor 50 using the external connection terminal CC as an input terminal. Further, it is connected to an input terminal of a NOT circuit 55 via a resistor 54.

The output terminal of the NOT circuit 55 is the output of the engine start determination circuit 22.
NOT circuit 56 is connected in series, and this second stage NOT circuit
The output terminal 56 is connected to the input terminal of the first-stage NOT circuit 55 via a resistor 57 and to the reset terminal R of the counter 43. And the first stage NOT circuit
The input terminal 55 is separately connected to the output terminal of the three-terminal regulator 25 via a capacitor 58, and has an input of the voltage V _DD .

When the engine 2 of the engine generator 1 is started and the charging coil 6 starts generating power and a voltage is generated on the output line 8, the engine start-up determination circuit 22 has an appropriate time lag in the delay circuit and performs a NOT operation. The input of the circuit 55 goes high, and the output of the NOT circuit 55 goes low. That is, the output level of the NOT circuit 55 becomes L
Is determined.

The temperature sensor 15 is turned on (switch terminal 15).
a, 15b are connected), the battery power is supplied to the three-terminal regulator 25, and when the power supply to each element is started via this, each element starts operating and the capacitor The pulse enters the reset terminal R of the counter 43 through the NOT circuits 55 and 56 only at the moment when the voltage V _DD is applied to 58, resets the initial value of the counter 43 and starts counting from the beginning.

Next, the starting circuit 21 inputs to the NOT circuit 60 an output signal which alternately repeats the H level and the L level at the output terminal Q9 of the counter 43 every 5 seconds, and outputs the output to the NAND circuit 61.
To one input terminal.

The output signal of the NOT circuit 55 of the engine start determination circuit 22 is input to the other input terminal of the NAND circuit 61, and the output terminal of the NAND circuit 61 is connected to the input terminal of the next-stage NOT circuit 62. The output of the NOT circuit 62 is input to the gate terminal of the transistor 64 via the resistor 63. The transistor 64 is grounded at the emitter, and the collector terminal is connected to the base terminal of another transistor 67 via the resistor 65.

The transistor 67 has an emitter terminal connected to one switch contact of the switch 36, a resistor 66 interposed between the emitter and the base, and a voltage division by the resistor 65 and the resistor 66 is applied. . The collector terminal of the transistor 67 is connected to the external connection terminal CS to output a start signal, and a Zener diode 68 is interposed between the emitter and the collector.

Therefore, the starting circuit 21 is connected to one input terminal of the NAND circuit 61 when the output of the NOT circuit 55 of the engine start-up determining circuit 22 is at the H level (ie, when the output voltage does not appear on the output line 8 of the generator). If the output terminal Q9 of the counter 43 is in the L level state for 5 seconds while being input, the NAND circuit 61 has both input terminals at the H level, and therefore outputs the L level, and the next-stage NOT circuit 62 outputs the H level. Since the level is output to the base of the transistor 64, the transistor 64 is turned on, and thus the transistor 67 is also turned on.
The battery current via 36 passes from terminal CS to engine generator 1
Input to the ST terminal. When the battery current is supplied to the ST terminal for 5 seconds, the engine generator 1 drives the starting motor 4 for 5 seconds to start the engine.

If the engine does not start despite the start motor 4 being driven for 5 seconds, the output of the output terminal Q9 of the counter 43 becomes L level for the next 5 seconds, so that the transistor 67 is turned off. Then, the current supply to the ST terminal is stopped, and the operation of supplying the battery to the ST terminal again is repeated for the next 5 seconds. Thus, the engine 2 is started by driving the starter motor 4 every 5 seconds.

When the engine 2 is started, the charging coil 6 starts generating power, and an output voltage appears on the output line 8.
As described above, the output of the NOT circuit 55 of the engine start determination circuit 22 becomes L level and is input to one input terminal of the NAND circuit 61. When one input terminal of the NAND circuit 61 becomes L level, the signal from the counter 43 every 5 seconds is not passed, and the output of the NAND circuit 61 is always H level, so that the transistor 64 and the transistor 67 are turned off, and to the ST terminal. Will be stopped.

If the engine 2 does not start up after 45 seconds after repeating the starting operation every 5 seconds, the counter 43
Output terminals Q9 and Q12 both become H level and NAND circuit
The output of 42 becomes L level, the transistor 40 of the switching control circuit 23 becomes non-conductive, the relay coil 35 is demagnetized, and the switch 36 is turned off, so that the starting signal current does not flow to the ST terminal thereafter.

The output L level of the NAND circuit 42 is
One input terminal of the circuit 44 is set to the L level, the output of the oscillator 45 is not passed through the counter 43, the counter 43 stops counting, and the L level of the NAND circuit 42 is maintained.

The automatic operation control circuit 20 is configured as described above, and the entire control process will be described below.

First, when the surface temperature of the orchard 100 is initially higher than the temperature set by the temperature sensor 15, the switches of the four temperature sensors 15 are OFF and the switches 36
Is OFF, and the switch 37 is in the ON state on the normally closed side. A battery voltage is always applied to the four temperature sensors 15 via the three-terminal regulator 24, and the temperature monitoring by the sensors is continued.

In such a state, the charging output of the solar charger 17 arranged outdoors passes through the switch 37 from the CHG terminal of the engine generator 1 through the output line 8 and is input to the battery 5 through the diode 10. And the battery 5 is charged.

When the surface temperature of the orchard 100 falls and the temperature detected by any of the temperature sensors 15 falls below the set value,
The switch terminals 15a and 15b are short-circuited, the sensor output is output from the temperature sensor 15 to the three-terminal regulator 25, and the three-terminal regulator 25 supplies operating power to each element of each of the circuits 21, 22, and 23.

Then, the counter of the switching control circuit 23
43 means that both output terminals Q9 and Q12 are initially at L level
The output of the NAND circuit 42 becomes H level, the transistor 40 is turned on, and the relay coil 35 is excited.
N, switch 37 is normally off when normally closed
Turns on. That is, when the switch 36 is turned on, an operation signal is input to the LD terminal of the engine generator 1 and the operation prohibition state such as the release of the grounding of the ignition device is released, and the operation becomes a movable state,
On the other hand, when the switch 37 is switched to the normally open side, the charging output from the solar charger 17 is cut off.

At the same time, the output of the three-terminal regulator 25 is input to the capacitor 58, and the pulse signal from the NOT circuit 56 is input to the reset terminal R of the counter 43.
Starts counting from the initial reset state.

Since the H level is initially input to one input terminal of the NAND circuit 61, the L level and the H level output from the output terminal Q9 of the counter 43 every 5 seconds are output from the NAND circuit 61 as they are. , And at the L level for the first 5 seconds, it goes to the H level via the NOT circuit 62, and the transistor
The battery current is supplied as a start signal to the ST terminal of the engine generator 1 through the switch 36 which is turned on and the transistor 67 is turned on and the transistor 67 is turned on.
For 5 seconds.

Thereafter, the starting motor 4 is driven at intervals of 5 seconds until the engine 2 is started, and the engine 2 is started.

When the engine 2 is started and the output generated by the charging coil 6 enters the engine start determination circuit 22 via the output line 8 and the normally open contact of the switch 37, the output of the NOT circuit 55 becomes L level and the NAND circuit becomes 61 closes the gate and stops starting every 5 seconds. At this time, the output of the NOT circuit 56 is H
Since the level continues, the counter 43 inputs this to the reset terminal R and stops counting.

When the engine 2 starts up, the generator 3 starts generating electric power, and the generated electric power drives the fan motor 16. When the power generation is started and the output enters the engine start determination circuit 22 via the output line 8, the output of the NOT circuit 55 becomes L level, the NAND circuit 61 closes the gate and stops the starting operation every 5 seconds. At this time, since the output of the NOT circuit 56 keeps the H level, the counter 43 inputs this to the reset terminal R and stops counting. Thus, the engine 2 is operated, the operation is continued by the operation signal to the LD terminal, the output of the generator 3 drives the fan motor 16, and the output of the charging coil 6 is changed to the output line 8 and the diode inside the engine generator 1. The battery 5 is charged via 10.

When the surface temperature of the orchard 100 rises and all four temperature sensors 15 detect a temperature higher than the set value, the switch between the switch terminals 15a and 15b of the temperature sensor 15 is released, and the power to the three-terminal regulator 25 is released. Supply cut off, so each circuit 2
The operations of the elements 1, 22, and 23 are stopped.

Accordingly, the base input of the transistor 40 becomes L level, the transistor 40 becomes non-conductive, the relay coil 35 is demagnetized, the switch 36 is turned off, and the switch 37 is switched to the normally open contact. When no operation signal is input to the LD terminal of the engine generator 1 (the primary side of the ignition device is grounded), the engine 2 stops driving, and thus the power generation output from the generator 3 is stopped and the fan motor 16 Stop rotation of 16a.

At the same time, when the switch 37 is switched to the normally open contact, the charging output from the solar charger 17 rides on the output line 8 of the engine generator 1 and the charging of the battery 5 is restarted.

As described above, when the surface temperature of the orchard 100 falls below the set value, the engine generator 1 automatically starts operating, drives the fan motor 16 to agitate the air and exceeds the set value. , The engine generator 1 automatically stops.

When the engine generator 1 is not operating, the battery 5 is charged by the solar charger 17. Therefore, the present embodiment is applicable to a situation in which the operation continuation time of the engine generator 1 is too short or the operation suspension period is too long, so that the battery becomes unable to drive the starting motor due to a decrease in stored energy due to self-discharge and standby current. Examples include charging the battery 5 from the solar charger 17 and giving the remaining energy to the storage energy of the battery, so that various start / stop operations such as a short operation continuation time and a long operation suspension period are provided. It is possible to respond to patterns with a margin. Also,
The charging of the battery 5 from the solar charger 17 is performed by the generator 3
Since the output line 8 is used as it is, the automatic driving device can be configured without any modification to the engine generator 1 itself.

The automatic operation control circuit 20 and the load input delay circuit 70 are connected by two connection lines 11 and 12,
One connection line 11 is drawn from the output terminal of the oscillator 45, and the other connection line 12 is drawn from the output of the engine start-up determination circuit 22, that is, the output terminal of the NOT circuit 55 to the load-on delay circuit 70.

Next, the load input delay circuit 70 will be described with reference to FIG. The load input delay circuit 70 also has a counter 72, an output terminal of the NAND circuit 71 is connected to an input terminal CL of the NAND circuit 71, and one input terminal of the NAND circuit 71 is supplied from the oscillator 45 of the automatic operation control circuit 20. The connection line 11 from the output terminal of the NOT circuit 55 of the engine start determination circuit 22 is connected to the reset terminal R of the counter 72.

The output terminals Q13 and Q14 of the counter 72 are connected to the NOT circuits 73 and 74, respectively, and also to the two input terminals of the NAND circuit 75.

The output terminals of the NOT circuits 73 and 74 are connected to the NAND circuit 76
The output terminal of the NAND circuit 76 is connected to the input terminal of the next two serial NOT circuits 77 and 78, and the output terminal of the NOT circuit 78 is connected to the emitter Connected to base terminal. Transistor
A collector terminal 80 is connected to one end of a relay coil 82 in which a surge absorbing diode 81 is connected in parallel, and connection terminals 84 at both ends of a relay switch 83 operated by the relay coil 82 are connected to a pair of connection terminals with the power distribution device 104. Connected to lines 114 and 130.

The output terminal of the NOT circuit 74 is a NOT circuit
The output terminal of the NOT circuit 85 is connected to the input terminal 85
Is connected to the base terminal of the transistor 87 having the common emitter. The collector terminal of the transistor 87 is a relay coil 89 with a diode 88 for surge absorption connected in parallel.
The connection terminals 91 at both ends of a relay switch 90 that is connected to one end of
Is connected to another pair of connection lines 114 and 130.

Further, the output terminal of the NAND circuit 75 is connected to the input terminal of a NOT circuit 92, and the output terminal of the NOT circuit 92 is connected via a resistor 93 to the base terminal of a transistor 94 whose emitter is grounded. The collector terminal of the transistor 94 is connected to one end of a relay coil 96 in which a surge absorbing diode 95 is connected in parallel, and connection terminals 98 at both ends of a relay switch 97 operated by the relay coil 96 are further connected to the power distribution device 104. Are connected to a pair of connection lines 114 and 130. The output terminal of the NAND circuit 75 is connected to the NA
It is connected to one input terminal of the ND circuit 71.

Next, the operation of the load input delay circuit 70 will be described. The NAND circuit 71 receives the oscillation signal of the oscillator 45, but outputs a signal corresponding to the oscillation signal if the H level is input to another input terminal, and the L level is input to the other input terminal. Output the H level at all times.

Since the output of the counter 72 is initially at the L level, the output of the NAND circuit 75 is at the H level, and this H level is input to the other input terminal of the NAND circuit 71.
A pulse train signal corresponding to the oscillation signal is input from the ND circuit 71 to the counter 72. When the engine start-up determination circuit 22 of the automatic operation control circuit 20 detects the start-up of the engine 2, the input signal of the reset terminal of the counter 72 goes low, the reset state is released, and the counter 72 starts counting.

Initially, the output terminals Q13 and Q13 of the counter 72
All 14 outputs are at L level and each transistor
Since the bases of 80, 87 and 94 are at L level and are not conducting, all the relay coils 82, 89 and 96 are in the demagnetized state and the corresponding relay switches 83, 90 and 97 are open.

When a predetermined delay time elapses after the counter 72 starts counting, the output of one output terminal Q13 goes high. Then, the L level and the H level inverted by the NOT circuits 73 and 74 are input to the NAND circuit 76, the output of the NAND circuit 76 becomes the H level, the output of the NOT circuit 78 becomes the H level, and the transistor 80 conducts. The relay coil 82 is excited and the relay switch 83 is short-circuited. The other relay switches 90, 97 remain open.

Next, the output terminal Q13 is at the L level,
When 14 goes high, the output terminal of the NOT circuit 74 goes low, so that the output of the next NOT circuit 85 goes high, the transistor 87 conducts, the relay coil 89 is excited, and the relay switch 90 is short-circuited. . The relay switch
83 remains shorted and relay switch 97 remains open.

Next, when both of the output terminals Q13 and Q14 become H level, the output of the NAND circuit 75 becomes L level for the first time, so that the next-stage NOT circuit 92 becomes H level and conducts the transistor 94 to turn on the relay coil. Energize 96 and short-circuit relay switch 97. Therefore all relay switches 8
3, 90 and 97 are short-circuited.

When the output of the NAND circuit 75 becomes L level, NA
Since the L level is input to one input terminal of the ND circuit 71, as described above, the NAND circuit 71 no longer outputs an oscillation signal to the counter 72, and the counter 72 stops counting. Therefore, the three relay switches 83, 90 , 97 will remain shorted. This state is released when the engine is stopped and an H level signal is input to the reset terminal R of the counter 72 from the output terminal of the NOT circuit 55 of the rise determination circuit 22, and all the relay switches 83, 90, Open 97.

As described above, the load input delay circuit 70 operates the relay switches 8 after a certain time after the engine 2 is started.
3, 90, 97 are configured to be short-circuited (closed). The actual power supply from the engine generator 1 to each load will be described with reference to FIG. When the engine 2 is started and single-phase and three-phase electric power is output from the generator 3, the patrol light 120 is turned on, and the coil 112b of the electromagnetic switch 112 at the top in FIG. Are short-circuited, and one fan motor 16 is driven first.

Next, after a certain delay time, the relay switch
83 is short-circuited, the coil of the second electromagnetic switch 112 is excited, the switch 112a is short-circuited, the second fan motor 16 is driven, and so on. The motor 16 is driven, and finally the relay switch 97 is short-circuited, so that the fourth fan motor 16 is driven. As described above, by sequentially driving the fan motors 16 with a certain time interval, it is possible to prevent the occurrence of an overload on the generator 3 due to a large starting current caused by the starting of each fan motor, and to provide an engine having a small power generation capacity. Even in the case of a generator, a plurality of fan motors can be reliably driven without affecting the operation of the engine generator.

The time interval of the sequential driving is determined by the counter 72.
Can be changed by appropriately selecting the output terminal. Also, needless to say, if there is a sufficient margin in the power generation capacity of the generator 3, it is also possible to simultaneously drive without adding such a function of sequential driving.

As described above, the orchard management apparatus according to the present embodiment operates as follows when the temperature near the ground decreases and at least one of the temperature sensors 15 detects that the temperature has fallen below the set temperature. 2 starts automatically, and the generator 3 starts generating electricity.
16 are sequentially driven to stir the air in the orchard 100 to raise the ground surface temperature and prevent the occurrence of frost.

When all the temperature sensors 15 detect a temperature equal to or higher than the set temperature, the operation of the engine generator 1 is automatically stopped, so that the operations of all the fan motors 16 are also automatically stopped. Therefore, it is possible to constantly monitor the temperature in a completely unmanned state and automatically operate the fan motor 16 only when necessary, thereby protecting the orchard from frost and frost damage.

By sequentially driving the fan motor 16, a time difference can be given to a large current accompanying the start of the fan motor 16, so that the load on the engine generator 1 can be reduced, and there is not much room for power generation capacity. Even in the case of the engine generator, all the fan motors 16 can be reliably driven without hindering the continuation of the operation of the engine generator. Since power is constantly supplied to the temperature sensor 15 from the battery 5, the surface temperature of the orchard 100 can be constantly monitored.

Since the battery 5 is charged from the solar charger 17 when the engine 2 of the engine generator 1 is stopped, the battery is always kept irrespective of operating conditions such as a short operating time or a long operating interval. Thus, the engine generator can be reliably started.

If the detected temperature of any one of the four temperature sensors 15 is lower than the set temperature, it is determined by the wired or wiring of the wiring section 109, and the start of the engine generator 1 is instructed. Starting 16 ensures that frost is prevented even in large orchards.

The present invention is not limited to the prevention of frost damage in orchards, but also the prevention of high-temperature damage in which fruit ripens due to high temperatures in house cultivation. You can do it.

[0088]

According to the present invention, the engine generator is automatically started / stopped based on the weather condition of the farm detected by the weather sensor, so that the fan motor is driven only when necessary to stir the atmosphere, and It is possible to automatically adjust the weather conditions (conditions such as temperature) within the plant, and protect the farm from unmanned management from various weather disasters.

[Brief description of the drawings]

FIG. 1 is an external view of an orchard management system according to an embodiment of the present invention.

FIG. 2 is an overall configuration diagram of the orchard management device.

FIG. 3 is a circuit diagram of an automatic operation control circuit.

FIG. 4 is a circuit diagram of a load input delay circuit.

[Explanation of symbols]

1 ... Engine generator, 2 ... Engine, 3 ... Generator, 4 ...
Starting motor, 5 ... Battery, 6 ... Charging coil, 7 ... Remote control terminal, 8 ... Output line, 9,10 ... Diode, 11,12 ...
Connection wire, 15… Temperature sensor, 16… Fan motor, 17… Solar charger, 20… Automatic operation control circuit, 21… Start circuit, 22…
Engine start determination circuit, 23 ... switching control circuit,
24, 25 ... three-terminal regulator, 30, 31, 32, 33 ... capacitor, 35 ... relay coil, 36, 37 ... switch, 38, 39 ... diode, 40 ... transistor, 41 ... resistor, 42 ... NAND circuit, 43 ... Counter, 44 NAND circuit, 45 oscillator, 50 resistor, 51 Zener diode, 52 resistor, 53 capacitor, 54 resistor, 55, 56 NOT circuit, 57 resistor, 58 capacitor, 60 NOT Circuit, 61… NAND circuit, 62… NOT circuit,
63 ... resistor, 64 ... transistor, 65, 66 ... resistor, 67 ... transistor, 68 ... Zener diode, 70 ... load input delay circuit, 71 ... NAND circuit, 72 ... counter, 73, 74 ... NOT circuit, 75, 76 ... NAND circuit, 77, 78… NOT circuit, 79… resistor,
80… transistor, 81… diode, 82… relay coil, 83… relay switch, 84… connection terminal, 85… NOT circuit, 86… resistance, 87… transistor, 88… diode, 89
... Relay coil, 90 ... Relay switch, 91 ... Connection terminal,
92… NOT circuit, 93… resistor, 94… transistor, 95… diode, 96… relay coil, 97… relay switch, 98…
Connection terminal, 100 ... orchard, 101 ... pillar 101, 102 ... control box, 103 ... automatic operation unit, 104 ... power distribution device,
105 ... terminal, 106, 107, 108 ... electric wire, 109 ... wiring part, 110 ... electric wire, 111 ... output line, 112 ... electromagnetic switch,
113 ... power line, 114 ... connection line, 115 ... power line 120 ... patrol light, 130 ... connection line.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takashi Tsuru 1-4-1, Chuo, Wako, Saitama Prefecture Inside Honda R & D Co., Ltd. (72) Motohisa Shimizu 1-4-1, Chuo, Wako, Saitama Inside Honda R & D Co., Ltd. (72) Inventor Fumio Muroya 1-4-1 Chuo, Wako-shi, Saitama Pref. Inside Honda R & D Co., Ltd. (58) Field surveyed (Int. Cl. ⁷ , DB name) A01G 13 / 08

Claims (5)

(57) [Claims] 1. A farm management apparatus for driving fans arranged in a plurality of locations on a farm by fan motors to agitate air in the farm and maintain predetermined weather conditions, comprising a battery and started by a starting motor. An engine generator that drives a generator with an engine to be distributed; a power distribution device that distributes and supplies the generated power of the generator to the plurality of fan motors; a weather detection sensor that detects a weather state in a farm; An automatic driving device for instructing start and stop of the engine generator based on a detection signal of a weather sensor,
A farm management apparatus, wherein start and stop of the plurality of fan motors are controlled by start and stop of the engine generator. 2. The farm management apparatus according to claim 1, wherein the automatic operation device includes a power distribution control unit that controls the power distribution device and sequentially supplies power to the plurality of fan motors. 3. The farm management apparatus according to claim 1, wherein the automatic driving device is configured to constantly supply electric power from the battery to the weather sensor. 4. The farm management apparatus according to claim 1, wherein the automatic driving device includes a switching unit that charges the battery from a separately provided solar charger when the engine is stopped. 5. The weather sensor is installed at a plurality of locations, and further includes a determination unit configured to determine whether a detection value of any one of the weather sensors has reached a set value. The farm management apparatus according to claim 1, wherein when any one of the weather sensors reaches a set value based on the determination result, the engine generator is instructed to start and all fan motors are started.