Control system for fire pump

• US 6,547,528 B1
• Filed: 11/14/2000
• Issued: 04/15/2003
• Est. Priority Date: 11/29/1999
• Status: Expired due to Fees

• Current Assignee: Fuji Jukogyo KK (Subaru Corp.)
• Original Assignee: Fuji Jukogyo KK (Subaru Corp.)
• Inventors: Yoshida, Kenichi
• Primary Examiner(s): Tyler, Cheryl J.
• Assistant Examiner(s): GRAY, MICHAEL KUHN
• Application Number:
  US09/712,523
• Time in Patent Office: 882 Days
• Field of Search: 417/34, 417/32, 417/18, 417/22, 417/13
• US Class Current: 417/34
• CPC Class Codes: F04B 17/05 driven by internal-combustion engines
• CPC Class Codes: F04B 2203/0605 Rotational speed
• CPC Class Codes: F04B 2205/05 Pressure after the pump outlet
• CPC Class Codes: F04B 2205/09 Flow through the pump
• CPC Class Codes: F04B 49/065 and making use of computers
• CPC Class Codes: F04B 49/10 Other safety measures

Abstract

A system for remote-controlling a fire pump with a simple wiring construction is provided, being capable of conducting various kinds of control and display. The fire pump control system has an engine, a fire pump, an internal control apparatus, at least one external control apparatus located away from the fire pump including the internal control apparatus, and a twisted pair line for connecting the external control apparatus with the internal control apparatus. The internal and external control apparatuses form a network through the twisted pair line so as to control the fire pump through telecommunications from the external control apparatus. This network uses a p-CSMA system for communicating data, so that a high level of remote control can be carried out, with monitoring an operation state of the fire pump.

Claims

1. A fire pump control system for controlling a fire pump having an engine, a pump, sensors, and an internal control apparatus, comprising:

at least one external control apparatus located away from the fire pump; and

a twisted pair line for connecting said external control apparatus with said internal control apparatus;

wherein;

said internal control apparatus and said external control apparatus form a network through said twisted pair line so as to control said fire pump through telecommunications from said external control apparatus;

said internal control apparatus has a control circuit which comprises a motion control circuit for receiving information from said sensors mounted on said fire pump and transmitting control signals to said engine, and said internal control apparatus having a communication control circuit for communicating with said external control apparatus through said twisted pair line; and

said external control apparatus has an operation display portion comprising an operation display panel and a throttle operation key for controlling the throttle of said engine.

2. The fire control system according to claim 1, wherein said external control apparatus comprises a control circuit including a communication control circuit for communicating with said internal control apparatus through said twisted pair line.

3. The fire pump control system according to claim 1, wherein:

said operation control panel has a key portion comprising an engine start key, an engine stop key, a motion mode changeover key, and a display changeover key, and has means for displaying an operating state and an abnormality warning for said fire pump.

4. The fire pump control system according to claim 1, wherein said network uses a p-CSMA system for communicating data.