Voice message announcing method and system for plant

• US 4,914,705 A
• Filed: 09/03/1987
• Issued: 04/03/1990
• Est. Priority Date: 09/03/1986
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Nigawara, Seiitsu
• Primary Examiner(s): Shoop, Jr., William M.
• Assistant Examiner(s): Hoff, Marc S.
• Application Number:
  US07/092,619
• Time in Patent Office: 943 Days
• Field of Search: 379/67, 379/88, 379/157, 379/217, 379/374, 381/51, 381/82
• US Class Current: 704/270
• CPC Class Codes: G08B 23/00 Alarms responsive to unspecified undesired or abnormal conditions
• CPC Class Codes: G08B 3/10 using electric transmission; using electromagnetic transmission

Abstract

A system for announcing operating conditions of a plant includes an identifying unit identifying plant site operating conditions on the basis of information signals indicative of the operating conditions at plate sites at the plant site, a voice message signal generating unit determining plant site operating instruction signals on the basis of the identified plant operating conditions and converting the determined instruction signals into corresponding voice message signals, a voice message signal output unit, and a voice message announcing order selection unit including a memory for temporarily storing the voice message signals, an announcing order determining unit for determining the order of announcement of the stored voice message signals, and an output selecting unit for sequentially applying the stored voice message signals to the message signal output unit in the determined order.

Claims

1. A voice message announcing method for a plurality of plant sites, said method comprising the steps of:

(a) identifying the state of an operating condition at each of a plurality of plant sites;

(b) for each plant site selecting from among a plurality of voice message signals a voice message signal indicative of the identified state at the plant site;

(c) determining an order of announcement for the selected voice message signals in accordance with a predetermined priority order; and

(d) announcing the selected voice message signals in accordance with the determined order of announcement.

2. A voice message announcing method as claimed in claim 1, wherein step (b) comprises:

preparing for each plant site a plant operating instruction in accordance with the identified state at the plant site; and

selecting a voice message signal for each plant operating instruction.

3. A voice message announcing method as claimed in claim 1, further comprising:

temporarily storing the selected voice message signals.

4. A voice message announcing method according to claim 1, 2, or 3, wherein the state of the operating condition at each of said plurality of plant sites is identified by analyzing plant condition information, a process signal, or another voice message signal indicating the state of the operating condition at said each plant.

5. A voice message announcing method according to claim 1, 2, or 3, wherein the order of announcement of the voice message signals is determined by analyzing the seriousness of problems occurring at each plant site or the operation mode at each plant site.

6. A voice message announcing method according to claim 1, 2, or 3 further comprising the steps of:

assigning a level of urgency to each voice message signal;

stopping the announcement of the selected voice message signal when a voice message signal is prepared having a level of urgency higher than the level of urgency of the selected voice message signal; and

announcing the voice message signal having the higher level of urgency.

7. A voice message announcing system for a plurality of plant sites, said system comprising:

a plurality of identifying means, one identifying means at each of a like plurality of plant sites for identifying the state of an operating condition at the associated plant site;

a like plurality of voice message signal generating means, one voice signal generating means being provided at each plant site for generating a voice message signal indicative of the identified state at the associated plant site;

announcing order selecting means common to said plurality of plant sites for selecting an order of announcement for the generated voice message signals; and

voice message signal announcing output means for announcing the voice message signals in the selected order of announcement.

8. A voice message announcing system as claimed in claim 7, wherein each of said plurality of voice signal generating means comprises:

an operation instruction preparing means for preparing an operation instruction in accordance with the identified state at the associated plant site; and

a voice message signal generating device for generating a voice message signal indicative of the operation instruction for the associated plant site.

9. A voice message announcing system according to claim 7 or 8, wherein each of said identifying means includes means for identifying the state of the operating condition of the associated plant by analyzing plant condition information, a process signal, or another voice signal message indicating the state of the operating condition at the associated plant site.

10. A voice message announcing system according to claim 7 or 8, wherein said announcing order selecting means includes means for determining the order of announcement based on the seriousness of problems occurring at each plant site or on the operation mode at each plant site.

11. A voice message announcing system according to claim 7 or 8, further comprising:

urgency level assigning means common to said plurality of plant sites for assigning a level of urgency to the voice message signals; and

message interrupt means responsive to preparation of a voice message assigned a higher priority level during announcing of a voice message signal of a lower priority level for interrupting the announcing of the lower priority level message and announcing the higher priority voice message signal.