Automatic water sprinkler control system

• US 5,074,468 A
• Filed: 04/17/1990
• Issued: 12/24/1991
• Est. Priority Date: 08/29/1988
• Status: Expired due to Fees

• Current Assignee: Konan Denki Kabushiki Kaisha, Sekisui KOJI Kabushiki Kaisha
• Original Assignee: Konan Denki Kabushiki Kaisha, Sekisui KOJI Kabushiki Kaisha
• Inventors: Otsuka, Naoki, Yamamoto, Harushi
• Primary Examiner(s): Kashnikow, Andres
• Assistant Examiner(s): Merritt, Karen B.
• Application Number:
  US07/474,038
• Time in Patent Office: 616 Days
• Field of Search: 239/66, 239/69, 239/70, 239/200, 239/201, 239/207, 251/30.01, 251/30.02
• US Class Current: 239/69
• CPC Class Codes: A01G 25/16 Control of watering

Abstract

An automatic control system, having a main control system with wireless communication equipment, with a water sprinkling device disposed in an area to be sprinkled with water and adapted to sprinkle water over this area, and water piping installed between a water source and the water sprinkling device, and adapted to distribute water from the water source to the water sprinkling device. A water sprinkling control system is installed on the ground in a position close to the water sprinkling device and adapted to control the water sprinkling device. The water sprinkling control system includes a hydraulic valve disposed in the water piping close to the sprinkling device which has a water channel connecting an inflow passageway with a flow passageway connected to a pilot line. A two-way pilot solenoid valve is connected at one port thereof to the hydraulic valve through the pilot line, and at the other port to a drain piping. The water sprinkling control system also has a wireless signal receiving-transmitting system which receives a control signal from the main control system and transmits an answer signal thereto, a solenoid valve control device disposed in the vicinity of the two-way pilot solenoid valve, connected to the wireless signal receiving-transmitting device to control the two-way pilot solenoid valve, and a power supply which supplies electric power to the wireless signal receiving-transmitting device and the solenoid valve device.

Claims

1. An automatic water sprinkler control system comprising:

a main control means having a wireless communications equipment;

at least one water sprinkling means disposed in an area to be sprinkled with water and adapted to sprinkle water over said area;

a water piping installed between a water source and said water sprinkling means and adapted to distribute water from said water source to said water sprinkling means; and

a water sprinkling control means installed on the ground in a position close to said water sprinkling means and adapted to control said water sprinkling means, said water sprinkling control means comprising;

a) a hydraulic valve disposed in said water piping in a position close to said water sprinkling means, said hydraulic valve having a diaphragm which can be opened and closed, said diaphragm including a small diameter passageway formed in a flexible portion thereof connecting an inflow passageway of the hydraulic valve to a flow passageway connected to a pilot line;

b) a two-way pilot solenoid valve connected at one port thereof to said hydraulic valve through said pilot line and at the other port to a drain piping and adapted to control said hydraulic valve;

c) a wireless signal receiving-transmitting means adapted to receive a control signal from said main control means and to transmit an answer signal to said main control means;

d) a solenoid valve control means which is disposed in the vicinity of said two-way pilot solenoid valve, connected to said wireless signal receiving-transmitting means and adapted to control said two-way pilot solenoid valve according to said control signal received by said wireless signal receiving means; and

e) a power supply means for supplying electric power to said wireless signal receiving-transmitting means and said solenoid valve means.

2. An automatic control system, comprising:

a main control means having a wireless communication equipment;

at least one water sprinkling means disposed in an area to be sprinkled with water and adapted to sprinkle water over said area;

a water piping installed between a water source and said water sprinkling means, and adapted to distribute water from said water source to said water sprinkling means; and

a water sprinkling control means installed on the ground in a position close to said water sprinkling means and adapted to control said water sprinkling means, said water sprinkling control means comprising;

a) a hydraulic valve disposed in said water piping in a position close to said sprinkling means, said hydraulic valve having a water channel connecting an inflow passageway of the valve with a flow passageway to which a pilot line is connected, said water channel being provided with an air bleeding orifice which can be opened and closed with respect to the atmosphere;

b) a two-way pilot solenoid valve connected at one port thereof to said hydraulic valve through said pilot line, and at the other port to a drain piping and adapted to control said hydraulic valve,

c) a wireless signal receiving-transmitting means adapted to receive a control signal from said main control means and to transmit an answer signal to said main control means,

d) a solenoid valve control means which is disposed in the vicinity of said two-way pilot solenoid valve, connected to said wireless signal receiving-transmitting means and adapted to control said two-way pilot solenoid valve according to said control signal received by said wireless signal receiving means, and

e) a power supply means for supplying electric power to said wireless signal receiving-transmitting means and said solenoid valve means.