JPH08275684A - System for controlling irrigation of paddy field - Google Patents

Abstract

PURPOSE: To enable central control of the water levels of rice paddies distributing in plurally separated locations at home. CONSTITUTION: This irrigation control system comprises the water-feeding unit which is installed in the rice paddies and automatically feed water to the paddies and stops feeding, when the water level reaches the prescribed one, additionally detects the water temperature, and the control unit which is set in at home and output renewed control information such as change in the water level to the water-feeding unit based on the information on the water level and temperature sent from water-feeding unit. The water-feeding unit is composed of a transmitter receiver 1-1, the controller 1-2, the water-level detector 1-3 and the water-temperature detector 1-4 and the water feeder which feeds or stops water based on the result of comparison with the controller 1-2. The control unit 3 is composed of the transmitter receiver 3-1 and the output-input part 3-2 which inputs or outputs renewed information, when renewed control information such as change in the water level is output to the water- feeding unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention automatically controls a series of operations for automatically supplying water to a paddy field and stopping the water supply when the water level reaches a preset water level. Irrigation system for paddy field that manages the water level of the paddy field.

[0002]

2. Description of the Related Art Conventionally, water level management of a paddy field is disclosed in, for example, Japanese Unexamined Patent Publication No. 6-280243 and Japanese Unexamined Patent Publication No. 7-23671, when the water level in a paddy falls below a set water level. An artificial automatic water supply and a water supply device that stops the water supply when the water level reaches the set water level are installed in paddy fields. However, in the past, the water supply system installed in the paddy field was composed of a water level detector that detects the water level and an automatic water supply and stop water supply unit that connects this water level detector to set the water level of the paddy field. I was managing it.

[0003]

By the way, the water level of the paddy field is changed according to the growing season of rice cultivation, temperature change, and the like. For example, when the water level is changed during the mid-season season of rice cultivation, or the water level is changed according to the temperature change, for example, when the heat of water is used to increase the heat retention of rice cultivation at night when the temperature becomes low, the daytime when the temperature is high. It is necessary to change the water level, such as by making the water level deep inside and heating the water with solar heat to improve the growth of rice cultivation.
The above-mentioned conventional water supply device is configured to automatically supply water to the set water level when the water level drops, and stop the water supply when the set water level is reached. In order to change the water level according to the growing season, changes in temperature, etc., it must be done artificially.
That is, the manager of the paddy field has to go directly to the paddy field and manually change the upper and lower water levels of the water level detector that detects the upper and lower water levels of the water supply device. For example, in the case of the water supply device disclosed in Japanese Unexamined Patent Publication No. 6-280243, a float guide that is connected via an arm to a pilot valve that serves as an opening and closing activation part for opening and closing the valve body of the water supply part according to a change in water level is provided. The upper and lower fixed positions of the float for detecting the upper and lower water levels must be manually displaced. Therefore, in the past, the manager had to extend his feet to all the rice fields scattered several kilometers away, which made the management a lot of hard work.

The present invention has been made in view of such conventional circumstances, and the water level of the paddy field can be freely changed by remote control at home (at home), and the water level and water temperature information of the paddy field can be stored at home. Moreover, it is an object of the present invention to provide a paddy field irrigation management system capable of centrally managing the water levels of all the paddy fields that are scattered at several locations at home.

[0005]

[Means for Achieving the Object] The technical means taken by the present invention to achieve the above object is to install water in a paddy field, to automatically supply water to the paddy field, and to supply water when the water level reaches a set water level. A water supply device that stops water level management and measures the water temperature of a paddy field, and is installed in a home, and is connected to the water supply device based on the management information such as the water level and the water temperature transmitted from the water supply device by transmission and reception with the water supply device. On the other hand, it comprises a management device for transmitting new management information such as change of the set water level, and the water supply device inputs / receives a set water level of the paddy field and a transmitter / receiver A for transmitting / receiving to / from the management device. Of the control unit that performs the judgment process with the water level that has been set, the water level detector that detects the water level of the paddy field and the water temperature detector that detects the water temperature of the paddy field, and the water level detection signal output from the water level detector and the set water level. To control The management device comprises a water supply part for supplying and stopping water according to the comparison processing content, while the management device transmits / receives to / from the transmitter / receiver A of the water supply device, and the water level and water temperature received by the transmitter / receiver B. When transmitting new management information such as changing the set water level to the control unit of the water supply device based on the management information such as the above, it is configured with an input / output unit for inputting / outputting the new information .

In addition, in the irrigation management system for paddy fields according to claim 1, a water supply device is installed in each of several paddy fields with respect to one management device installed at home, and the water level of each paddy field is centrally managed. The gist is that it is configured to measure the water level.

Further, in the irrigation management system for paddy fields according to claims 1 and 2, the transmission and reception between the transceiver A of the water supply device and the transceiver B of the management device are performed by a specific low power type weak radio wave. To do.

Further, in the paddy field irrigation management system according to claim 2 or 3, when the transceiver B of the management device and the transceiver A of the water supply device of each paddy field are different in transmission / reception distance, they are installed in the nearest paddy field. The transmitter / receiver A of the water supply system that is located farthest away from the transmitter / receiver A of the water supply system is relayed to perform transmission / reception with the transmitter / receiver A of the water supply system installed in the farthest paddy field. The summary is that it is configured in.

Further, in the paddy field irrigation management system according to claim 2 or 3, when the transceiver B of the management device and the transceiver A of the water supply device of each paddy field which is divided in several places are different in transmission / reception distance. In the above, the gist is that it is configured such that one or several repeaters installed on the way are relayed to perform transmission / reception with the transceiver A of the water supply device installed in the farthest paddy field.

Further, in the paddy field irrigation management system according to any one of claims 1 to 5, the water supply device comprises a transceiver A, a water level detector and a water temperature detector, and a timer A for managing the operating time of the water supply section. On the other hand, it is a gist that the management device includes a timer B that manages transmission / reception between the transceiver B and the transceiver A in association with the timer A.

[0011]

Therefore, according to the above-mentioned technical means of the present invention, the water level detector of the water supply device installed in the paddy field, the water level detected by the water temperature detector, and the water temperature information are transceivers. It is transmitted from A to the transceiver B of the management device at home. This allows you to know the water level and temperature of the paddy field at home. Then, the water temperature data up to the previous day, or information such as the temperature falling for several days from tonight is entered, and if the user wants to change the set water level which raises the set water level currently set, the administrator inputs / outputs to / from the management device. Operate the section to input and output a new set water level that raises the water level above the current water level. Then, the transmitter / receiver B transmits to the transmitter / receiver A in the paddy field, and the new set water level received by the transmitter / receiver A is input to and stored in the control unit of the water supply device. When a new set water level is input to the control unit, the control unit performs a comparison process between the new set water level and the water level detection signal output from the water level detector, that is, the current water level and the new set water level, and the water level detector When the control unit determines that the current water level output from the control unit is lower than the set water level, the control unit outputs a water supply signal to the water supply unit, and the water supply unit starts automatic water supply. When the current water level that rises with water supply reaches the set water level, the control unit outputs a stop signal to the water supply unit to stop the water supply. That is, the management set water level by the water supply device of the paddy field can be changed at home according to the growing season of rice cultivation, temperature changes, and the like.

According to the technical means of the second aspect, since the water level and water temperature information of each paddy field which is divided into several places are transmitted to the management device at home, the water level and water temperature information of each paddy field. Can be checked at home. That is, it is possible to centrally manage the water level of each paddy field that is divided into several places at home and to check the water temperature. When changing the water level of each paddy field due to changes in temperature, etc., the input / output unit of the control device is operated to set the water level from the transceiver B to the transceiver A of each water supply device in the paddy field. It is possible to transmit new management information such as changes and input a new set water level to the control unit of the water supply device of each paddy field. That is, it is possible to change the management setting water level of each water supply device in the paddy field that is divided into several places at home.

According to the technical means described in claim 3, since it is not necessary to permit the wireless qualification, the water level management and water temperature measurement of the paddy field described in claim 1 or 2 can be easily used. can do.

According to the technical means of claim 4, the information transmitted from the transmitter / receiver B of the management apparatus has a transmission / reception distance gradually increasing from the transmitter / receiver A of the water supply apparatus installed in the nearest paddy field. It is relayed by the transmitter / receiver A of each water supply device installed in the terminal and finally received by the transmitter / receiver A of the water supply device installed in the farthest paddy field. On the other hand, the water level and the water temperature information transmitted from the transmitter / receiver A of the water supply device installed in the farthest paddy field, the transmission / reception distance gradually increases from the transmitter / receiver A of the water supply device installed in the closest paddy field. The transmitter / receiver A of the water supply device installed in the paddy is relayed and received by the transmitter / receiver B of the management device at home.

According to the technical means described in claim 5, transmission / reception with the transceiver B of the management apparatus according to claim 4 and the transceiver A of the water supply apparatus of each paddy field having a different transmission / reception distance are performed on the way. This is done by relaying the relay stations installed at one to several places.

According to the technical means of the sixth aspect, since the transmitter / receiver A of the water supply device, the water level detector and the water temperature detector, and the operating time of the water supply part are controlled by the timer A, they are always operated. No need to energize. That is, it consumes less electric power and is economical as compared with the case of always energizing. Moreover, since the operation timing of operating the transceiver B of the management device corresponding to the operation time of the transceiver A of the water supply device by the timer A can be managed and interlocked by the timer B, the transceiver B of the management device and the water supply Transmission and reception with the transceiver A of the device is surely performed.

[0017]

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a paddy field irrigation management system, in which 1 is installed in a paddy field 2 and water is automatically supplied to the paddy field 2. And a water supply device that controls the water level to stop the water supply when the water level L reaches the set water level and the water temperature of the paddy field,
3 is installed in the house 4, and new management such as changing the set water level for the water supply device 1 based on the water level L and water temperature information transmitted from the water supply device 1 by transmission and reception with the water supply device 1. It is a management device that transmits information, and a water level L and water temperature information are transmitted from a transceiver A 1-1 of the water supply device 1 described later to a transceiver B 3-1 of the management device 3 described later, and the management information is sent to the home. You can see in 4. Then, the set water level of the water supply device 1 can be appropriately changed by transmitting from the transceiver B 3-1 of the management device 3 to the transceiver A 1-1 of the water supply device 1.

The water supply device 1 is a slave station of the wireless equipment and manages the water level L of the paddy field 2 based on the set water level and also sends the water level L information to the management device 3. A transmitter / receiver A 1-1 for transmitting and receiving data to and from the paddy field 2, a control unit 1-2 for setting and storing the water level L of the paddy field 2 and determining processing between the set water level L and the detected water level L, and the water level L of the paddy field 2. Water level detector 1-3 for detecting the water temperature, water temperature detector 1-4 for detecting the water temperature of the paddy field 2, and a water level detection signal output from the water level detector 1-3, that is, a control unit 1 for the current water level and the set water level. -
It consists of a water supply signal output from the control unit 1-2 according to the judgment content compared by 2 and a water supply unit 1-5 for supplying / stopping water according to a stop signal (see FIG. 1 (b) and FIG. 3). ), The set water level previously input by the control unit 1-2 and the current water level output from the water level detector 1-3 are compared, and the current water level output from the water level detector 1-3 is compared. When it is determined that the water level is lower than the set water level, the water supply unit 1-5 outputs a water supply signal to start water supply to the paddy field 2 and the water level detector 1-3 outputs the water in parallel with the water supply. When the current water level reaches the set water level, a stop signal is output to the water supply section 1-5 to manage the water level L of the paddy field 2.

The transceiver A 1-1 is a slave station of wireless equipment and is connected to a processing unit 7 of the control unit 1-2 which will be described later.
The current water level from the water level detector 1-3 output from
The role of transmitting management information such as the current water temperature from the water temperature detector 1-4 to the transceiver B 3-1 of the management device 3 and the change of the set water level transmitted from the transceiver B 3-1 of the management device 3 It receives new management information of the device and outputs the information to the control unit 1-2. It is arranged in the cover 6 on the machine frame 5 installed on the rice field, and the transceiver B3 of the management device 3 is installed. Send and receive with -1.

The control unit 1-2 is provided with a processing unit 7 for comparing the current water level output from the water level detector 1-3 with the already stored set water level, and the current water level is lower than the set water level. If it is determined that the water supply signal is sent to the water supply unit 1-5 via the amplifier 8, a stop signal is output to the water supply unit 1-5 when the current water level reaches the set water level. That is, the transmitter / receiver B 3-1 of the management device 3 is transmitted to the transmitter / receiver A 1-1 of the water supply device 1, and the set water level output from the transmitter / receiver A 1-1 is input and based on the set water level. Water level L of paddy field 2
Is to control the water level L of the paddy field 2 to the set water level by comparing with the current water level output from the water level detector 1-3, and is placed on the above-mentioned machine frame 5 covered with the cover 6. It

Incidentally, in the present embodiment, the difference in water level between the set water level and the current water level is set to ± 2 cm when the processing unit 7 compares the current water level and the set water level. For example, 15
Even if the current water level detectors 1-3 output the current water level of 13 cm and 17 cm with respect to the set water level of cm, the processing unit 7 compares the set water level and the current water level with the same water level.

The water level detector 1-3 is a pressure sensor that operates to convert the pressure that changes according to the vertical displacement of the water level L into a voltage and output the water level L to the control unit 1-2. It is arranged vertically in the frame 5 and is connected to the processing unit 7 of the control unit 1-2, outputs the detected water level information to the processing unit 7, and the water level information is processed by the processing unit 7 and the transceiver A 1-1
From the management apparatus 3 to the transceiver B 3-1 of the management apparatus 3 and displayed on the display unit 22 of the input / output unit 3-2 of the management apparatus 3 which will be described later. In the figure, the peripheral surface has an inflow vertical hole 9-1 into which the water of the paddy field 2 enters, and the lower end side is vertically arranged in the tubular body 9 mounted in the machine frame 5 as if it was inserted into the paddy field, and the water surface is blown by wind or the like. The water level L of the paddy field 2 can be detected without being affected by the waves generated in the water.

The water temperature detector 1-4 is a well-known water temperature meter that operates to convert the water temperature into a voltage, and is arranged in the above-mentioned cylindrical body 9 and connected to the processing section 7 of the control section 1-2. Then, the detected water temperature information is output to the processing unit 7, and the water temperature information is processed by the processing unit 7 and transmitted from the transceiver A 1-1 to the transceiver B 3-1 of the management device 3 to perform the management. It is adapted to be displayed on the display unit 22 of the device 3.

The water supply section 1-5 is a pipeline (not shown) that is being advanced in recent agricultural land development, or a water channel as shown.
A support valve 14 and a valve shaft 12 connected to and held at the lower end of a support shaft 14 that is positioned so as to oppose the water supply port 11-1 of a water supply channel 11 that is piped into the machine frame 5 from 10 and is vertically movable. A large gear of the support portion 13 that is screwed to be vertically movable and rotatably arranged.
A small gear that meshes with and meshes with the support 15 to rotate the support 13 forward and backward.
A motor 17 having a motor 16 is provided, and by rotating the support portion 13 by the power of the motor 17, the support shaft 14 screw-connected in a penetrating manner is vertically moved up and down, so that the valve valve 12 causes the water supply passage 11 to move.
It is configured to open and close the water supply port 11-1. The motor 17 is connected to the processing unit 7 through the amplifier 8 of the control unit 1-2, and is rotated in the forward and reverse directions by the water supply signal and the stop signal which are compared by the processing unit 7 and output.
By moving the support shaft 14 up and down through the 15, 16 and the support portion 13, the valve valve 12 is moved up and down, and the water supply port 11-1 of the water supply passage 11 is shown.
To open and close. A non-rotatable key 14-1 is provided on the upper end of the support shaft 14 so that the support shaft 14 does not rotate when it moves up and down as the support 13 rotates in the forward and reverse directions.

Then, the above-mentioned transceiver A 1-1 and control unit
The motors 17 for 1-2, water level detector 1-3, water temperature detector 1-4, and water supply unit 1-5 are lead-in wires 18 drawn from the utility pole shown in the figure.
Are connected to the connectors 19 arranged on the machine frame 5, and electricity is supplied from the connectors 19.

The management device 3 is a base station of wireless equipment, and informs the administrator of the water level L and water temperature information transmitted from the transmitter / receiver A 1-1 of the water supply device 1 and newly manages the water supply device 1. A transmitter / receiver B 3-1 that transmits and receives information to and from the transmitter / receiver A 1-1 of the water supply device 1, and water supply based on the water level L and the water temperature information received by the transmitter / receiver B 3-1. When transmitting (inputting) new management information such as changing the set water level to the control unit 1-2 of the device 1, the input / output unit 3-2 is used to input and output the new information (see FIG. 1 ( B) and Figure 2). In the figure, 39 is a printer for external output.

The transceiver B 3-1 is connected to a later-described central processing unit (CPU) of the input / output unit 3-2 via a modem 20, and the water level L and the water temperature transmitted from the transceiver A 1-1. While receiving the information and outputting it to the display unit 22 described later,
The transceiver A receives new management information such as the set water level that is input by the input / output unit 3-2 and processed by the central processing unit (CPU).
It is to be sent to 1-1.

The input / output unit 3-2 is a central processing unit (CP
U), an input unit 21, and a display unit 22. The display unit 22 displays the water level L from the water supply device 1 and the water temperature information output from the transceiver B 3-1 to the central processing unit (CPU) via the modem 20. , And new management information such as changing the set water level of the water supply device 1 is input to the central processing unit (CPU) by the input unit 21.

The input unit 21 is for inputting management information such as the set water level and various control data, and is composed of a keyboard, a mouse and the like. The display unit 22 is, for example, a CRT monitor, and is input by the input unit 21 so that the central processing unit (CP
U) management information such as set water level and various data stored in
Alternatively, the transceiver A 1-1 of the water supply device 1 to the transceiver B 3-1
The water level L and the water temperature information transmitted from the CPU and output from the central processing unit (CPU) are displayed.

Next, the water level management of the paddy field 2 by the irrigation management system for paddy field according to the present embodiment configured as described above will be described with reference to the flow chart shown in FIG. 4. The water level of the water supply system 1 installed in the paddy field 2 will be described. Detector 1-3, water temperature detector 1-4
Detects the water level L and the water temperature of the paddy field 2 (step 23). When the detected water level L and water temperature information is output to the control unit 1-2, the control unit 1-2 outputs the information to the transceiver A 1-1 and the transceiver A 1-1 to the transceiver of the management device 3. The data is transmitted to B 3-1 and is output from the central processing unit (CPU) to the display unit 22 and displayed on the display unit 22 (step 24), while the control unit 1-
When the water level information is output from the water level detector 1-3, the second processing unit 7 compares the current water level with the set water level (step 25). When it is judged that the current water level is lower than the set water level, the water supply signal (valve open signal) is output from the processing unit 7 to the motor 17 of the water supply unit 1-5 via the amplifier 8, the motor 17 is operated, and the valve valve 12 is turned on. Water inlet 11 of water supply channel 11
-1 is opened to start automatic water supply (step 26). At this time, the water level detector 1-3 detects the rise of the water level L accompanying the water supply (step 27), the water level information is sequentially output to the processing unit 12, and the processing unit 7 sequentially performs the comparison process with the set water level. (Step 28). When the current water level reaches the set water level, the processing unit 7 outputs a stop signal (valve close signal) to the motor 17,
The motor 17 is operated, the valve valve 12 closes the water supply port 11-1 of the water supply passage 11, and the water supply is stopped (step 29).

When the water temperature data up to the previous day or information such as the temperature falling for several days from tonight is entered and the user wants to change the set water level to raise the currently set water level, the administrator sets The input unit 21 of 3 is operated to input a new set water level for raising the water level L above the current water level.
At this time, the newly set water level is the central processing unit (CP
U) is output and stored and is displayed on the display unit 22 while being transmitted from the transceiver B 3-1 to the transceiver A 1-1 of the water supply device 1 of the paddy field 2 and the transceiver A 1-1 The new set water level received is output and stored in the control unit 1-2. When the new set water level is stored in the control unit 1-2, water supply to the paddy field 2 is stopped and stopped at the stage from step 23 to step 29 described above, and the water level associated with the change in the set water level of the paddy field 2 is performed. Management is done.

In FIG. 5, the water supply device 1 is installed in each of the paddy fields 2 which are scattered in several places with respect to one management device 3 installed in the home 4, and the water level L and the water temperature of each of the paddy fields 2 in several places are set. Etc. is another embodiment configured to be centrally managed by a single management device 3 of the home 4, and such an embodiment is such that the control unit 1-2 of each water supply device 1 of the paddy field 2 uses the lot number of the paddy field 2, etc. While inputting the channel number (identification number) using the, the water supply device 1 of the paddy field 2 corresponding to the channel number is input to the management device 3 side.
For example, in the case where the paddy fields 2 are scattered at four places as shown in the figure, channel numbers 1 to 4 are assigned to the water supply devices 1 at the four places as the control unit 1-2 of each water supply device 1. Call numbers 0001-000 with different frequencies etc. so that transmission / reception is performed corresponding to these channel numbers 1-4.
4 is input to the central processing unit (CPU) of the management device 3 as a digital signal (system), and the call signal 0001 is transmitted from the transceiver B 3-1 of the management device 3, the channel number 1 When transmission / reception with the water supply device 1 is performed and then a call signal 0003 is transmitted, the call number 0001 to so that transmission / reception with the water supply device 1 of the channel number 3 is performed.
Each of the water supply devices 1 and the management device 3 of the paddy field 2 is configured to individually transmit and receive by the channel numbers 1 to 4 corresponding to 0004. That is, the communication condition with each water supply device 1 is set in the central processing unit (CPU) of the management device 3 so that transmission and reception are individually performed with the management device 3.
In this embodiment, the description of the same components as those described in detail in the above embodiment will be omitted.

Control unit of each water supply device 1 installed in the paddy field 2
While inputting the channel numbers 1 to 4 such as the lot number of the paddy field 2 to 1-2, the management device 3 is equipped with application software for setting the communication conditions with each water supply device 1 and the central processing unit (CPU) is equipped. The call numbers 0001 to 0004 are input as digital signals. In addition, the central processing unit (CP
In U), the calling numbers 0001 to 0004 are input, and at the same time, at an appropriate time (an interval of about 30 seconds to 1 minute), from the calling number 0001 to the transmitter / receiver B3-1 of the management device 3 to each water supply device 1 in order. Input the control program so that it will be transmitted to the transceiver A 1-1. In detail, transceiver B 3-1
From which the call number 0001 is transmitted, and when an appropriate time has elapsed from the transmission, transmission / reception with the channel number 1 corresponding to the call number 0001 is suspended, the transmission / reception is automatically switched with the suspension, and the next call number 0002 is transmitted. The control program is input to the central processing unit (CPU) so that the data is transmitted from the transceiver B 3-1 and transmitted / received to / from the channel number 2, and each water supply device 1 and management device of the channel numbers 1 to 4 are input. Transmission / reception with 3 is automatically performed in the order of the control program. In addition, call number 0001
The transmission / reception with the water supply device 1 of the channel number 1 by the transmission may be started by calling the calling number 0001 on the display unit 22 by operating the input unit 21, and the operation is free.

Thus, according to the paddy field irrigation management system of this embodiment, the central processing unit (CPU) executes the control program to divide the paddy field 2 into several parts.
The water level L detected by the water level detector 1-3 and the water temperature detector 1-4 through the control unit 1-2 of each water supply device 1 and the water temperature information are the transmitter / receiver A 1-1 of each water supply device 1. Transmission / reception with the transceiver B 3-1 of the management device 3 is performed in order, and the water level L and the water temperature information of each paddy field 2 received by the transceiver B 3-1 are stored in the central processing unit (C
It is output from the PU) to the display unit 22 and is sequentially displayed on the display unit 22. The water level L and water temperature information of each paddy field 2 displayed on the display unit 22 are displayed together with the channel numbers 1 to 4 including the lot number of each paddy field. That is, it is possible to centrally manage the water level L and the water temperature of each paddy field 2 which is divided into several places at the home 4. And each paddy field 1 due to changes in temperature
In the case of changing the water level L, the new setting water level for raising the water level L above the current water level is input by operating the input unit 21 of the management device 3 as described in detail in the above embodiment. In this case, it is performed for each paddy field 2 in accordance with the water level information transmitted in order from each water supply device 1 of the paddy field 2. After that, the calling number 0001 is called on the display unit 22 by the input unit 21. Then, first, the call number 0001 is transmitted from the transceiver B 3-1 and transmission / reception with the transceiver A 1-1 of the water supply device 1 of the channel 1 corresponding to the call number 0001 is started to control the water supply device 1. The new set water level is input to section 1-2. After that, the call number 0002 ...
0004 is sequentially transmitted from the transceiver B 3-1 and a new set water level is input to the control unit 1-2 of each water supply device 1 of channels 2 to 4. That is, it is possible to change the set water level of each water supply device 1 of the paddy field 2 which is divided into several places at the home 4. Each water supply device 1 in which the new set water level has been input to the control unit 1-2, as described in detail in the above embodiment, stops and supplies water to each paddy field 2 from step 23 to step 29. Then, the water level of each paddy field 2 will be managed according to the new set water level.

Next, description will be given of a case where the transmission / reception distance between the transmitter / receiver B 3-1 of the management apparatus 3 and the transmitter / receiver A 1-1 of the water supply apparatus 1 is limited to a specific low power type weak radio wave. In another embodiment, one management device 3 installed in the home 4 is distributed to the paddy field 2 where transmission / reception is possible and the paddy field 2 where transmission / reception is not possible. In each of the water supply devices 1, the transmitter / receiver A 1-1 of the water supply device 1 installed in the paddy field 2 capable of transmitting / receiving to / from the management device 3 is relayed and installed in the paddy field 2 incapable of transmitting / receiving from the paddy field 2. This transmitter / receiver A 1-1 is relayed to the transmitter / receiver A 1-1 of the water supply device 1, and this transmitter / receiver A 1-1 is relayed to the next transmitter / receiver A 1-1. It is configured to perform transmission / reception with the transceiver A 1-1 of the water supply device 1 installed in the paddy field 2 at a distance. That is, the transmitter / receiver A 1-1 of the water supply device 1 capable of transmitting / receiving to / from the management device 3 and the transmitter / receiver A 1-1 of each water supply device 1 close to each other are sequentially relayed to each other at the end of the longest distance. The water supply device 1 is configured to perform transmission / reception with the transceiver A 1-1. Also in this embodiment, the description of the same components as those of the above-mentioned embodiment will be omitted.

In the central processing unit (CPU) of the management device 3,
As described in detail in the above embodiment, in addition to the control program for automatically switching the transmission / reception with the transmitter / receiver A 1-1 of each of the water supply devices 1 at several places over time, the water supply that has been suspended at the same time as the transmission / reception is automatically switched. The input unit so that the transceiver A 1-1 of the device 1 forms a relay relay that relays the transmission / reception between the transceiver A 1-1 of the water supply device 1 and the transceiver B 3-1 of the management device 3 to be transmitted / received next. Enter a new control program at 21.

Incidentally, the maximum transmission / reception distance capable of transmitting / receiving a specific low power type weak radio wave is a linear distance of about 1 km. Therefore, enter the channel number 1 into the control unit 1-2 of the water supply device 1 of the paddy field 2 which is separated from the home 4 within a range of about 1 km, and then enter the channel into the control unit 1-2 of the water supply device 1 which is next away. The management device 3 of the home 4 as if the number 2 is input
The channel numbers are sequentially input to the control unit 1-2 of each water supply device 1 as the transmission / reception distance increases.

According to the paddy field irrigation management system of this embodiment, the central processing unit (CPU) executes the control program so that the management device 3 of the home 4 can operate as described above. Transmission / reception with the transceiver B 3-1 and the transceiver A 1-1 of each water supply device 1 of the paddy field 2 which is divided into several places is carried out in order, and each transceiver B 3-1 receives The water level L and the water temperature information of the paddy field 2 are output from the central processing unit (CPU) to the display unit 22 and sequentially displayed on the display unit 22. As a result, the transceivers A 1-1 of all the water supply devices 1 and the transceivers B 3-1 of the management device 3 installed and scattered in the paddy field 2 where the transmission and reception of the specific low power type weak radio waves cannot be performed.
It becomes possible to send and receive with, and the water level and water temperature information of each paddy field 2 can be known at home 4. When changing the set water level of each water supply device 1, as described in detail in the above embodiment, the input unit 21 of the management device 3 is operated to input a new set water level for raising the water level L above the current water level. Then, the transceiver A of each water supply device 1
It is possible to input a new set water level to the control units 1-2 of all the water supply devices 1 that are scattered while relaying 1-1 in sequence.

As described in detail in the above embodiment, FIG. 7 shows a transmitter / receiver B 3-1 of the management device 3 and a transmitter / receiver A 1-1 of each water supply device 1 of the paddy field 2 which is a specific low power type weak radio wave. 1 to several places between each water supply device 1 and the management device 3 installed in the paddy field 2 in a place where radio waves cannot reach due to obstacles such as mountains, etc. The relay device 30 is installed in the transmitter and the transmitter / receiver A 1-1 of the water supply device 1 and the transmitter / receiver B 3-1 of the management device 3 which are relayed by the relay device 30 cannot transmit and receive. It is composed. Also in this embodiment, the description of the same components as those of the above-mentioned embodiment will be omitted.

The repeater 30 has a well-known structure which is conventionally known as an auxiliary device of wireless equipment for transmission / reception, and the management device 3 and the water supply device 1 have a distance or obstacle where transmission / reception is impossible. To enable transmission and reception between the water supply device 1 and the water supply device 1 by a specific low power type weak radio wave 1
It is installed at several places and relayed to the management device 3 of the home 4 so that each water supply device 1 can transmit and receive.

According to the paddy field irrigation management system of this embodiment, the central processing unit (CPU) executes the control program so that the management device 3 of the home 4 can operate as described above. Transmission / reception between the transceiver B 3-1 and the transceiver A 1-1 of each water supply device 1 of the paddy field 2 which is scattered in several places is performed sequentially through the relay device 30. The water level L and water temperature information of each paddy field 2 received by the central processing unit (C
It is output from the PU) to the display unit 22 and is sequentially displayed on the display unit 22. As a result, all the transmitters / receivers A 1-1 of the water supply devices 1 and the management devices 3 of the house 4 installed and scattered in the paddy field 2 where transmission / reception of specific low power type weak radio waves cannot be performed.
It becomes possible to transmit and receive with the transmitter / receiver B 3-1 of the above, and the water level L and water temperature information of each paddy field 2 can be known at the home 4. When changing the set water level of each water supply device 1, as described in detail in the above embodiment, the input unit 21 of the management device 3 is operated to input a new set water level for raising the water level L above the current water level. Then, it is possible to input a new set water level to the control units 1-2 of all the water supply devices 1 scattered while relaying the transmitters / receivers A 1-1 of each water supply device 1 in order.

It should be noted that the transmitter / receiver A 1 of the water supply device 1 installed in the paddy field 2 in a place where the weak radio waves of the specific low power type do not reach and the radio waves cannot reach due to obstacles such as mountains.
-1 and the transmitter / receiver B 3-1 of the management apparatus 3 are used for transmission / reception of the relay device 30
And the transceiver B 3-1 of the management apparatus 3 as described in detail in the above embodiment.
The transmitter / receiver A 1-1 of each water supply device 1 whose transmission / reception with the transmitter / receiver is stopped is relayed in order, and the transmitter / receiver A of all water supply devices 1 that cannot transmit / receive with the transmitter / receiver B 3-1 of the management device 3 It is good and free to configure so that it can send and receive with 1-1.

The block diagram shown in FIG. 8 shows the transmitter / receiver A 1-1 of the water supply device 1, the water level detector 1-3, the water temperature detector 1-4, the motor 17 of the water supply section 1-5, and the power supply to these components. From the battery 31 arranged on the machine frame 5. Then, in order to reduce the power consumption of the battery 31 of limited power, the transmitter / receiver A 1-1, the water level detector 1-3, the water temperature detector 1-of the water supply device 1 are provided.
4. A timer A32 for managing the power supply time of the power supply to the motor 17 of the water supply unit 1-5 is arranged on the machine frame 5, and the transmitter / receiver A1-1 and the water level detection are carried out at the power supply time set in the timer A32. Power is supplied from the battery 31 to the motor 17 of the device 1-3, the water temperature detector 1-4, and the water supply unit 1-5 so that they can be operated. For example, it operates twice a day at 8:00 am and around 4:00 pm, and the water level detector 1-3 and the water temperature detector 1-4 detect the water level L and the water temperature, respectively, during the energizing time twice a day. The management information is output to the control unit 1-2, and also output from the control unit 1-2 to the transceiver A 1-1 to be transmitted to the transceiver B 3-1 of the management device 3. Become. That is, only when power is supplied from the battery 31 controlled by the timer A 32, the transmitter / receiver A 1-1 of the water supply device 1 transmits / receives to / from the transmitter / receiver B 3-1 of the management device 3 and the water level detector 1-3. The water level L and water temperature information output from the water temperature detector 1-4 and the control unit 1-2 are transmitted to the transmitter / receiver B 3-1 of the management device 3, and the control unit
1-2, the water supply unit 1-5 performs the comparison process between the current water level output from the water level detector 1-3 and the set water level by the processing unit 7.
The water supply signal and the stop signal are output to the motor 17 of and the valve valve 12 is opened and closed with respect to the water supply port 11-1 of the water supply passage 11.
The water level L of the paddy field 2 is configured to be managed at the set water level (see FIG. 9). Also in this embodiment, the same reference numerals are used for the same components as those in the detailed description of the above embodiment, and the description thereof will be omitted.

The timer A32 includes a battery 31, a transceiver A1-1, a water level detector 1-3, a water temperature detector 1-4, and a water supply unit 1-.
It serves to manage the energization of the power supply to the motor 17 of the No. 5, and is arranged on the machine frame 5, and has the battery 31, the transceiver A 1-1, the water level detector 1-3, and the water temperature detector 1-4. , Water supply section 1-5
Motor 17 of. The water level detector 1-3 and the water temperature detector 1-4 are connected via the processing unit 7 of the control unit 1-2, and the water supply unit 1-5 is connected to the motor 17 by the control unit 1-2.
Via the amplifier 8. Further, although the ON operation of energizing the power of the timer A32 is performed by counting the set time, the OFF operation of turning off the power is operated by the power cutoff signal output from the control section 1-2. That is, the processing unit 7 of the control unit 1-2 compares the current water level from the water level detector 1-3 with the same water level as the set water level and sends a stop signal (valve closing signal) to the motor 17 of the water supply unit 1-5. It is output, the motor 17 is operated and the valve valve 12 is the water supply port of the water supply passage 11.
It is designed to be performed by a power-off signal output from the processing unit 7 at the timing when 11-1 is closed.

In this embodiment, the water level L and the water temperature information from the transmitter / receiver A 1-1 of the water supply device 1 whose power is supplied by the timer A 32 to enable transmission / reception are the transmitter / receiver B of the management device 3. Transmitter / Receiver A 1-1
A transceiver B 3-1 is connected to the transceiver B 3-1 for timing of transmission / reception between the transceiver A and the transceiver B 3-1 and the transceiver A 3-1 can be transmitted and received by the timer A 32 when the power supply for the transceiver A 1-1 is turned on. Transmit / receive confirmation signal from B 3-1
It is supposed to be sent to 1-1.

Thus, according to the paddy field irrigation management system of this embodiment, the timers A, B 32, 33 are simultaneously started at the set time as shown in the flowchart of FIG. 10 (step 34). Then, the transmitter / receiver A 1- of the water supply device 1-
1, power is supplied to the motor 17 of the water level detector 1-3, the water temperature detector 1-4, and the water supply unit 1-5 (step 35), and the transceiver B 3-1 of the management device 3 to the transceiver A 1- A transmission / reception confirmation signal is transmitted to 1 (step 36). After that, as in steps 23 to 29 described in detail in the flowchart of FIG. 5,
At the stage from step 37 to step 43, automatic water supply and stoppage of water supply to each paddy field 2 are performed, and water level management according to the set water level of each paddy field 2 is performed. At this time, the transmission / reception between each water supply device 1 in the paddy field 2 and the management device 3 in the house 4 is performed while the transmission / reception is suspended by the execution of the control program by the central processing unit (CPU) as described in detail in the above embodiment. Machine A
1-1, or the order of relaying the relay device 30 in order. Then, the processing unit 7 of the control unit 1-2 compares the current water level and the set water level, which are sequentially output from the water level detector 1-3 with water supply. When the current water level reaches the set water level, the processing unit 7 outputs a stop signal (valve closing signal) to the motor 17 and at the same time a power cutoff signal is output to the timer A32, and the timer A32 turns off and the battery The power supply from the transmitter / receiver A 1-1, the water level detector 1-3, the water temperature detector 1-4, and the water supply unit 1-5 to the motor 17 is shut off from 31 (step 44).

In this embodiment, as shown by the chain double-dashed line in FIG. 9, a solar cell module 45 that stores a voltage in the battery 31 by using sunlight is installed on the machine frame 5, so-called solar power generation. The system is configured to store a voltage in the battery 31, so that the power supply by the battery 31 can be continued for a long period of time. Needless to say, devices such as a switching device that converts light into electric power are used to connect the solar cell module 45 and the battery 31.

[0048]

Since the paddy field irrigation management system of the present invention is constructed as described above, it has the following operational effects. ． The water level detector of the water supply device installed in the paddy field, the water level detected by the water temperature detector, and the water temperature information are transmitted from the transceiver A to the transceiver B of the management device at home, and the water level L and the water temperature information are known at home. You can On the other hand, the water level information detected by the water level detector is output to the control unit, and the control unit compares the current water level output from the water level detector with the set water level, and if the current water level is lower than the set water level. When the process is judged, an operation signal is output to the water supply unit to start water supply to the water supply unit, and when the current water level rising with water supply reaches the set water level, a stop signal is output to the water supply unit to stop water supply. . Then, the water temperature data up to the previous day or information such as the temperature falling for several days from tonight is entered, and when changing the set water level, the administrator operates the input / output unit of the management device to set the water level L to the current water level. By inputting a new set water level that is higher than the above, the new set water level is transmitted by the transceiver B to the transceiver A of the paddy field, and is output from the transceiver A to the controller of the water supply device to the controller. Remembered. That is, the set water level by the water supply device of the paddy field can be changed at home according to the growing season of rice cultivation, the temperature change, and the like.

.. Since the water level L and water temperature information of each paddy field divided into several places are transmitted to the management device at home,
You can check the water level L and water temperature information of each paddy field at home. That is, the water level L of each paddy field which is divided into several places,
You can centrally manage the water temperature at home. Also, when changing the water level L of each paddy field due to changes in temperature, etc., as described above,
By operating the input / output unit of the management device, transmitter / receiver B transmits new management information such as change of the set water level to transmitter / receiver A of the water supply device of each paddy field, and the new set water level is sent to the control unit of the water supply device of each paddy field. Can be entered. That is, it is possible to change the set water level of the water supply device of each paddy field which is divided into several places at home.

.. By using weak radio waves of a specific low power type that does not require permission of wireless qualification, it is possible to easily use the water level L and water temperature management of the paddy field described in or above. That is, it can be easily used by ordinary farmers and is effective.

.. The information transmitted from the transceiver B of the management device is relayed through the transceiver A of the water supply device installed in each paddy field, where the transmission / reception distance gradually increases from the transceiver A of the water supply device installed in the nearest paddy field. , Finally, since it is received in sequence to the transmitter / receiver A of the water supply device installed in the farthest paddy field, all of the paddy fields scattered in several places are separated by using weak radio waves of specific low power type. Water level L and water temperature information can be known at home.

.. Transmission / reception with the transceiver B of the management apparatus described above and the transceiver A of the water supply apparatus of each paddy field having a different transmission / reception distance are performed by relaying one to several relay stations installed on the way.

Since the operating time of the transmitter / receiver A of the water supply device, the water level detector and the water temperature detector, and the water supply section is controlled by the timer A, it is not necessary to always energize. That is, power consumption is less than that in the case of always energizing, power saving is achieved, and it is economical. Moreover, since the operation timing of operating the transceiver B of the management device corresponding to the operation time of the transceiver A of the water supply device by the timer A can be managed and interlocked by the timer B, the transceiver B of the management device and the water supply Transmission and reception with the transceiver A of the device is surely performed.

Therefore, according to the paddy field irrigation management system of the present invention, since the water level L of the paddy field can be freely changed by remote control at home (at home), the manager can be several kilometers away from the conventional method. It is not necessary to extend to all paddy fields scattered around the area, water level management is greatly improved, and labor for managers can be reduced. Moreover, the water level L and water temperature information of each paddy field can be known at home. Furthermore, it will be an epoch-making irrigation management system that allows you to centrally manage the water levels L of all the paddy fields that are scattered in several places at your home.

[Brief description of drawings]

FIG. 1 is a block diagram of an irrigation management system for paddy fields according to the present invention, in which (a) is a block diagram of a management device and (b) is a block diagram of a water supply device.

FIG. 2 is a front view showing an example of the management apparatus.

FIG. 3 is a cross-sectional view showing an example of how the water supply device is installed in a paddy field.

FIG. 4 is a flowchart showing an operation of automatically supplying water based on a set water level stored in a control unit of the management device and stopping the water supply when the set water level is reached.

FIG. 5 is a schematic diagram showing another embodiment of a transmission / reception mode between a management device at home and a water supply device for paddy fields that are scattered in several places.

FIG. 6 is a schematic diagram showing an example of a transmission / reception mode when transmission / reception between a home management device and a water supply device in a paddy field which is scattered in several places is performed by using a specific low power type weak radio wave.

[Fig. 7] Transmission / reception between a home management device and a water supply device for paddy fields that are scattered at several locations by using a specific low-power type weak radio wave, and when transmission / reception is performed via a relay device on the way Schematic diagram showing an example of the form

FIG. 8: A timer A controls a transmitter / receiver A of the water supply device, a water level detector, a water temperature detector, and a power supply time to the water supply part, and a timer B controls the transmitter / receiver A and the transmitter / receiver B of the management device. FIG. 2 is a block diagram of the irrigation management system for paddy fields according to the present invention, in which the timing of transmission and reception of water is controlled.

FIG. 9 is a cross-sectional view showing an example of the installation form of the water supply device in a paddy field.

[Fig. 10] Transmission / reception between the transceiver A and the transceiver B accompanying the management of the timers A and B, and automatic water supply based on the set water level stored in the control unit of the management device and the set water level is reached. Flowchart showing the operation to stop the water supply at the point of time

[Explanation of symbols]

1 ... Water supply device 1-1 ... Transceiver A 1-2 ... Control unit 1-3 ... Water level detection unit 1-4 ... Water temperature detection unit 1-5 ... Water supply unit 2 ... Paddy field 3 ... Management device 3-1 ... Transceiver B 3-2 ... Input / output section 4 ... Home 32 ... Timer A 33 ... Timer B

Claims (6)

[Claims] 1. A water supply device installed in a paddy field, which automatically supplies water to the paddy field and stops water supply when the water level reaches a set water level, and a water supply device for measuring the water temperature of the paddy field, which is installed at home, A management device that transmits new management information such as a change in the set water level to the water supply device based on the management information such as the water level and water temperature transmitted from the water supply device by transmission and reception with the water supply device. , The water supply device transmits / receives data to / from a management device, a control unit for inputting a set water level of the paddy field, and a process of comparing the set water level with the detected water level, and a water level for detecting the water level of the paddy field. It is composed of a detector and a water temperature detector that detects the water temperature of the paddy field, and a water supply unit that supplies and stops water according to the judgment processing content of the water level detection signal output from the water level detector and the set water level by the control unit. Meanwhile, the tube The processing device is the transceiver A of the water supply device.
When transmitting new management information such as changing the set water level to the control unit of the water supply device based on the management information such as the water level and the water temperature received by the transceiver B, An irrigation management system for paddy fields, which is configured with an input / output unit that inputs and outputs the new information. 2. The paddy field irrigation management system according to claim 1, wherein a water supply device is installed in each of several paddy fields with respect to one management device installed at home to centrally manage the water level of each paddy field. An irrigation management system for paddy fields, which is configured to measure water temperature. 3. The irrigation management system for paddy fields according to claim 1 or 2, wherein transmission / reception between a transmitter / receiver A of the water supply apparatus and a transceiver B of the management apparatus is performed by a specific low power type weak radio wave. Paddy field irrigation management system. 4. The paddy field irrigation management system according to claim 2 or 3, wherein the transmitter / receiver B of the management device and the transmitter / receiver A of the water supply device of each paddy field that are scattered at several locations are different in transmission / reception distance. , The transmitter / receiver A of the water supply device installed in the nearest paddy field is located farthest from the transmitter / receiver A of the water supply device installed in each paddy field An irrigation management system for paddy fields, which is configured to perform transmission / reception with a transceiver A of a water supply device. 5. The paddy field irrigation management system according to claim 2 or 3, wherein the transmitter / receiver B of the management device and the transmitter / receiver A of the water supply device of each paddy field which are divided into several parts have different transmission / reception distances. The irrigation management for paddy fields is characterized in that it is configured to relay with one or several relay stations installed on the way and to transmit / receive with the transceiver A of the water supply device installed in the farthest paddy field. system. 6. The irrigation management system for paddy fields according to claim 1, wherein the water supply device includes a transceiver A, a water level detector and a water temperature detector, and a timer A for managing the operating time of the water supply section. While doing
The paddy field irrigation management system, wherein the management device comprises a timer B for controlling transmission / reception between the transceiver B and the transceiver A in association with the timer A.