JPS6345608A - Voice informing device - Google Patents

Abstract

PURPOSE:To avoid the flood of information and noises by preferentially delivering the voice information having the highest priority in case plural voice information are produced against the phenomena of a system to be controlled. CONSTITUTION:A phenomena detecting part 2 detects various phenomena of a plant 1 and these detected information are successively delivered to a memory retrieving part 3. The part 3 retrieves a memory 4 based on those detected information and sends the prescribed data to an importance degree deciding part 5. The memory 4 stores the plural voice information 41 on those phenomena of the plant 1 together with an importance degree flag 42 showing the importance degree of information and a sound volume flag 43 showing the sound volume. The part 5 stores temporarily the prescribed data, i.e., the information 41 and both flags 42 and 43 transferred from the memory 4 by the retrieving function of the part 3. Then the part 5 decides the importance degree of the information 41 from the flag 42 and transfers data to one of 1st-4th output buffers 6a-6d.

Description

[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention provides (1) a computer that is incorporated into an instrumentation control system, etc., and outputs necessary information by voice according to the control status of a wave-1 control system; The present invention relates to a voice notification device suitable for application to.

(Prior art) For example, in a thermal boiler in an electric power plant,
In order to improve steam generation efficiency, maintain the furnace, and adjust the concentration and concentration of exhaust gas, we detect fuel flow rate, air flow rate, steam pressure, etc. and perform predetermined arithmetic processing using a computer to make optimal adjustments to valves, etc. The amount is calculated and combustion control of the boiler is performed. In this case, various information such as the combustion state of the boiler or the optimum adjustment calculated by a computer is generally printed out by a printer or displayed as an image on a CRT display.

However, in the case of print output or image output, the operator may not notice or overlook the problem, resulting in a delay in taking action on the output. Recently, there have been systems in which this information is transmitted as audio from a speaker to an operator's room, etc., to ensure that the operator is alert.

(Problem to be Solved by the Invention) However, in this case, the audio information emitted from the speaker simply outputs the fact that the event occurred in the order of detection. For this reason, a large amount of audio information /[! overflowing,
There was a risk that the noise would cause important information essential for plant control to be drowned out by other information.

The present invention was made based on the above circumstances, and its purpose is to enable priority voice output of important information essential to the controlled system, and to prevent information overflow and noise. The object of the present invention is to provide a voice notification device that is measurable and contributes to control reliability.

[Structure of the Invention] (Means for Solving the Problems) Various events that occur in a controlled system are detected by an event detection means, and based on the detected events, a plurality of audio information regarding the events are '1. The memory stored together with the importance information is searched to retrieve predetermined audio information regarding a predetermined event, the importance of the retrieved audio information regarding the event is determined, and the audio is prioritized from the information with the highest importance. It is designed to be output.

(Operation) By taking such measures, when a plurality of pieces of audio information are generated in response to an event in the controlled system, the audio information with the highest priority is preferentially output.

(Example) An embodiment of the present invention will be described below.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In the figure, reference numeral 1 indicates a plant such as a thermal power boiler as a controlled system. The event detection section 2 detects various events that occur in the plant 1, and the detected information is sequentially output to the memory search section 3. The memory search section 3 searches the memory 4 based on the above-mentioned detection information, and transfers predetermined data to the importance determination section 5. As shown in FIG. 2, the memory 4 stores a plurality of pieces of audio information 41 related to events occurring in the plant 1 using importance flags 42 indicating the level of importance of the information (for example, highest, upper, middle, lower). ), and a volume flag 4 indicating the level of volume.
3 (for example, large, medium, small) is added and stored.

The importance determination section 5 selects predetermined data transferred from the memory 4 by the search action of the memory search section 3, that is, audio information 411 importance flag 42. The volume flag 43 is temporarily stored, the importance of the audio information 41 is determined based on the importance flag 42, and the data is sent to the first to fourth output buffers 6a.
6d to one of the buffers. The first to fourth output buffers 6a to 6d are storage areas for waiting the data according to the degree of importance, and the first output buffer 6a sequentially stores data with the highest degree of importance. The second output buffer 6b sequentially stores data with binary importance, the third output buffer 6c sequentially stores data with medium importance, and the fourth output buffer 76d stores data with low importance. Store data sequentially. Furthermore, all of the data stored in these output buffers 4a to 4d are cleared by turning on the cancel button 7.

The switching control section 8 controls the first to fourth output buffers 6a to 6a.
The data stored in 6d is output to the audio output circuit 9 according to the procedure shown in FIG. That is, the 0N10FF state of the cancel button 7 is determined in step 1).
, if it is in the OFF state, it is first determined whether data is stored in the first buffer 6a (step 2).
. If data exists, this data is output to the audio output circuit 9. On the other hand, if no data exists, it is determined whether data is stored in the second buffer 6b (step 3). Thereafter, in the same way, the data in the third buffer 6c (step 4)
, the absence of data in the fourth buffer 6d is sequentially determined in step 5), and if data is output from any one of the buffers to the audio output circuit 9, or if no data exists in any of the buffers, Cancel button 7-0 again
Determine the N10FF status. Then, the above cancel button 7 is set to O.
If N is input, all data stored in each output buffer 6a to 6d is cleared (step 6).

The audio control circuit 9 has a sound judgment section that judges the state of the volume flag 43 from data given via the switching control section 8, and uses the sound volume determined by the sound micro judgment section to output audio information. 41 is emitted from the speaker 10. Note that the voice emitted from the two-legged speaker 10 is in words and at a speed that is understandable to the operator.

Next, a case where the operation of the present device is applied to a combustion control system of a thermal power boiler as the plant 1 will be described. In thermal power boilers, if the temperature inside the furnace becomes too high, there is a risk of accidents such as furnace destruction.

For this reason, for example, temperature sensors are provided at the upper and lower parts of the furnace to detect the temperature inside the furnace, and the amount of fuel supplied is adjusted in accordance with temperature changes. On the other hand, a concentration limit value is set for the exhaust gas discharged from the furnace, and a concentration meter is installed at the exhaust gas discharge section to measure the concentration, and combustion is controlled depending on the concentration. In this case, the event detection section 2 may include a bottom thermometer, a bottom thermometer, a concentration meter, and the like.

Therefore, the audio information stored in the memory 4 is as follows:
Possible sounds are sounds that control the fuel supply amount in response to a rise in the furnace temperature, such as "Valve Throttle" and "Supply Amount + I-J," and sounds that notify an increase in the concentration of exhaust gas, such as "Gas Abnormality." In addition, the importance and aptitude of these audio information are as follows:
It can be said that "supply stoppage" which can lead to furnace destruction is the most important, followed by "valve throttling" and then "gas abnormality". Therefore, the audio information "supply stop" is stored in the memory 4 along with a flag indicating the highest level of importance and loud volume.
It is assumed that the audio information ``Valve throttled'' is stored together with a flag indicating a high level of importance and a medium volume, and the voice information ``Gas abnormality'' is stored together with a flag indicating a low level of importance and a low volume.

Now, when the event detection section 2 detects that the temperature inside the furnace is rising to a considerably dangerous state, the memory search section 3 searches for the voice information "valve throttling" and determines the importance of data containing this information. Transfer to Section 5. Then, the importance determining unit 5 detects the state of the importance flag 42 of the data, and in this case, since the importance is 1-, it outputs the 1-data to the second output buffer 6b. Furthermore, when the event detection unit 2 detects that the temperature inside the furnace has risen to a dangerous level and the exhaust gas concentration has reached the limit value at about the same time, the memory retrieval unit 3 generates the audio information “Supply The data including "stop" and the data including "gas abnormality" are searched and transferred to the importance determination unit 5. Then, the importance determining unit 5 outputs this data to the first output buffer 6a according to the importance of the data including the audio information "Supply stop", that is, the highest importance level, and outputs the data including the audio information "Gas abnormality" to the first output buffer 6a. This data is output to the fourth output buffer 6d according to the importance level, that is, the lower importance level.

On the other hand, in the switching control section 8, when the cancel button 7 is in the OFF state, the first to fourth output buffers 68 to 6d are sequentially switched, and the audio information "Valve throttle" stored in the second output buffer 6b is displayed. If the audio information "supply stop" data is stored in the first output buffer 76a before being switched to the data of , that is, while other data is stored in the first output buffer 6a, this The data is output preferentially to the audio output circuit 9, and a loud voice saying "stop supply" is emitted from the speaker 10. Next, if no other data exists in the first output buffer 6a, the output is switched to the second output buffer 6b, and a sound saying "valve throttle" is emitted from the speaker 10 at a medium volume. Thereafter, if no data exists in the first to third output buffers 6a to 6C, the sound "Gas abnormality" stored in the fourth output buffer 6d is emitted from the speaker 10 at a low volume.

By the way, in normal boiler combustion control, when a voice saying "supply stop" is emitted, it is considered to be an emergency situation, and information such as "valve throttling" is considered unnecessary. Then, when the operator hears the voice "Supply stop + L j", he turns on the cancel button 7. Then, the first to fourth
Since all data stored in the output cover sofas 6a to 6d is cleared, no sound is generated from the speaker 10.

As described above, according to the present embodiment, audio information is created in response to an event that occurs in the plant 1, and this information is stored in the memory 4 while distinguishing the volume depending on the degree of importance. By doing so, audio information corresponding to an event occurring in the plant 1 is outputted preferentially in order of importance. As a result, there is no risk that the most important information will be drowned out by a flood of less important information, and the necessary information is reliably transmitted to the operator. Further, by manually turning on the cancel button 7, the following audio output can be canceled, and noise can be prevented. Therefore, it is possible to prevent erroneous operations by the operator, and stable control of the plant 1 is possible.

Note that the present invention is not limited to the above embodiments.

For example, in the embodiment described above, the importance flag 42 and the volume flag 43 are added to the audio information 41 corresponding to the event that has occurred.
Information that distinguishes the type may also be added. By doing so, audio information that only needs to be communicated to a small number of operators can be emitted only from the speakers in the room or the like where the operator is staying.

Of course, various other modifications can be made without departing from the gist of the present invention.

[Effects of the Invention] As detailed above, according to the present invention, various events that occur in the controlled system are detected by the event detection means, and based on the detected events, a plurality of audio information regarding the events are detected. The memory that stores the information along with the importance information is retrieved to retrieve predetermined audio information regarding the predetermined event, the importance of the retrieved audio information regarding the event is determined, and the information with the highest importance is prioritized. Since it is possible to output audio, important information that is essential for the controlled system can be output preferentially.
It is possible to provide a voice notification device that can prevent information overflow and noise, and can contribute to improving control reliability.

[Brief explanation of the drawing]

Figures 1 to 3 are diagrams showing an embodiment of the present invention, in which Figure 1 is a block diagram showing the system configuration, Figure 2 is a memory map diagram showing the state of the memory, and Figure 3 is switching control. FIG. DESCRIPTION OF SYMBOLS 1...Plant, 2...Event detection unit, 3...Memory search unit, 4...Memory, 5...Importance determination unit, 6a
~6d...First to fourth output buffers, 7...Cancel button, 8...Switching control unit, 9...Audio output circuit, 10...
...Speaker. Applicant's agent Patent attorney Takehiko Suzue Figure 1

Claims (2)

[Claims] (1) Event detection means for detecting various events that occur in the controlled system; a memory for storing a plurality of audio information related to the events together with importance information; A memory search means for searching and retrieving audio information related to a predetermined event; and an audio system for determining the importance of the audio information regarding the event retrieved by the retrieval means and outputting audio preferentially starting from information with the highest importance. A voice notification device characterized by comprising: an output means. (2) Claim (1) characterized in that the audio output means cancels audio information having a lower importance than the audio outputted audio information as necessary. The audio notification device described.