JP4452168B2 - Audio broadcasting apparatus and history data processing method thereof - Google Patents

Description

  The present invention relates to an audio broadcasting apparatus having a recording function of operation history data.

  Conventionally, an audio broadcasting apparatus has been used for private broadcasting such as school broadcasting. The audio broadcasting apparatus is connected to a plurality of speakers arranged at various locations in the building. Then, the audio broadcasting device is operated, a speaker is selected, and audio is output from the selected speaker (see, for example, Patent Document 1).

The audio broadcasting apparatus is composed of a computer including a CPU. When recording the operation history data of the audio broadcast, the CPU records the event occurrence date and time and the contents of the event in the memory as operation history data. For example, the content of the occurrence event is a speaker that outputs a broadcast, and the event occurrence date and time is the date and time when the broadcast is output. The CPU obtains date / time information from the built-in clock in order to obtain the event occurrence date / time. This built-in clock is provided with a backup built-in battery, which guarantees that the date and time of the built-in clock is correct, and also guarantees the date and time of the history.
JP 2002-344406 A (page 3-4, FIG. 1)

  However, in the conventional audio broadcasting apparatus, as described above, in order to leave an operation history, an internal battery is provided together with an internal clock, and there is a problem that an operation history cannot be recorded if an internal battery is not provided. It was.

  The present invention has been made to solve the conventional problems, and an object thereof is to provide an audio broadcasting apparatus capable of recording an operation history even when an internal battery is not provided.

  The audio broadcasting apparatus of the present invention includes a built-in clock, a history data generating unit that generates operation history data including an event occurrence date and time acquired from the built-in clock when an event occurs, and history data that stores the operation history data A storage unit; an output request reception unit that receives an output request for the operation history data; a current date acquisition unit that acquires information on an actual current date and time when the output request is received; and an actual current date and time acquired A date and time is acquired from the built-in clock, and a difference detection unit that detects a difference between the actual current date and time and the date and time of the built-in clock, and the operation history data based on the detected difference. A date / time correction unit that corrects the included event occurrence date / time to an actual event occurrence date / time, and history data that outputs operation history data in which the event occurrence date / time is corrected And a radical 19.

  With this configuration, when the operation history data is recorded when an event occurs, the date and time obtained from the built-in clock is recorded as the event occurrence date and time, and then the actual current date and time is acquired when the operation history data is output. The event occurrence date / time of the operation history data is corrected based on the difference between the date / time and the date / time of the internal clock. In this way, even if the event occurrence date / time at the time of recording is different from the actual date / time, the event occurrence date / time is correctly corrected at the time of output, so even an audio broadcasting device without a built-in clock battery has an operation history recording function. It can be suitably provided.

  Further, the history data processing method of the audio broadcasting device of the present invention includes a step of generating operation history data including an event occurrence date and time acquired from an internal clock when an event occurs, and a step of storing the operation history data. A step of receiving an output request for the operation history data; a step of acquiring information of an actual current date and time when the output request is received; and a date and time from the built-in clock when the actual current date and time is acquired. Obtaining a difference between the actual current date and time and the date and time of the built-in clock; and based on the detected difference, the event occurrence date and time included in the operation history data is determined as an actual event occurrence date and time. And a step of outputting operation history data in which the event occurrence date and time are corrected.

  With this method, as described above, since the event occurrence date and time at the time of recording may deviate from the actual date and time, an operation history recording function can be suitably provided even when a built-in clock battery is not provided.

  Since the present invention provides a configuration for acquiring the actual current date and time when outputting the operation history data as described above and correcting the event occurrence date and time of the recorded operation history data, the built-in battery is not provided. However, it is possible to provide an audio broadcasting apparatus having an effect of being able to record operation history data.

  Hereinafter, an audio broadcasting apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  An audio broadcasting apparatus according to an embodiment of the present invention is shown in FIG. As shown in FIG. 1, the audio broadcasting device 1 includes a CPU 10, a RAM 12, a nonvolatile memory 14, an external storage device 16, an operation unit 18, and a display unit 20. The operation unit 18 is a switch, a button, or the like, and the display unit 20 is a display. The CPU 10 executes a program incorporated in the audio broadcasting device 1, controls the entire audio broadcasting device 1, and reads and writes data for the RAM 12, the nonvolatile memory 14, and the external storage device 16. Do.

  The CPU 10 includes a built-in clock 22. In the present embodiment, a battery for the built-in clock 22 is not provided, and the built-in clock 22 is not configured to have an accurate date and time. However, the built-in clock 22 has some date and time, and specifically, the built-in clock 22 has the date and time as a predetermined reference date and time when the audio broadcasting device 1 is powered on. This date / time information is acquired by the CPU 10 from the built-in clock 22.

  Next, FIG. 2 shows an audio broadcasting system provided with the audio broadcasting device 1 of FIG. 1, and the audio broadcasting device 1 is connected to a plurality of speakers 3 as shown. When the operation unit 18 is operated in the audio broadcasting apparatus 1 and a signal indicating selection of the speaker 3 to which broadcast is to be output is input from the operation unit 18 to the CPU 10, the CPU 10 starts from the speaker 3 indicated by the input signal. Output audio. Under the control of the CPU 10, a circuit of the selected speaker 3 system is connected. And the audio | voice input from the microphone is output and the audio | voice recorded beforehand is output.

  In the above, an area such as “floor (floor of building)” may be input to the operation unit 18 as information indicating selection of the speaker 3. In this case, the CPU 10 causes the speaker 3 in the input area to output a broadcast.

  Next, a configuration for recording operation history data will be described. The operation history data is recorded in the RAM 12 and the nonvolatile memory 14 by the CPU 10. The operation history data includes the occurrence date and time of the event and the content of the generated event, and the event occurs every time the operation unit 18 is operated during normal operation of the audio broadcasting device 1. The CPU 10 receives the operation content, records the received operation content as the occurrence event content, and records the date and time obtained from the built-in clock 22 as the event occurrence date and time. The CPU 10 records and accumulates operation history data in the RAM 14 every time an event occurs. Further, the CPU 10 performs processing for periodically transferring and storing the operation history data of the RAM 12 to the nonvolatile memory 14. The transfer processing interval is set to one day.

  In the above, the CPU 10 functions as a means for generating operation history data, and the RAM 12 and the nonvolatile memory 14 function as a means for storing operation history data.

  The event in which the operation history data is recorded is, for example, a broadcast output. In this case, the content of the generated event includes information indicating the speaker 3 that has output the broadcast. The speaker 3 may be represented by a floor of a building as described above. The CPU 10 performs control to output the broadcast to the speaker 3 in accordance with an input from the operation unit 18 and simultaneously performs processing to record data indicating the speaker 3 that has output the broadcast as event occurrence content.

  Next, the operation history data output will be described. When receiving an operation history data output request as described below, the CPU 10 performs a process of outputting the operation history data of the RAM 12 and the nonvolatile memory 14. The operation history data output request is input to the operation unit 18 and accepted by the CPU 10.

  When the CPU 10 receives the operation history data output request, the CPU 10 acquires information on the actual current date and time, acquires the date and time of the built-in clock 22 when the current date and time are input, The difference between the date and time of the clock 22 is calculated and detected. The current date and time is input to the operation unit 18 by the operator and acquired by the CPU 10. Based on the detected difference, the CPU 10 corrects the event occurrence date and time included in the operation history data stored in the RAM 14 and the nonvolatile memory 16 to the actual event occurrence date and time. In the correction process, the event occurrence date and time is shifted by the detected difference. Then, the CPU 10 outputs operation history data with the event occurrence date and time corrected. In the output process, the operation history data is displayed on the display unit 20, and the operation history data is output to the external storage device 16 and written therein. The operation history data may be output to one of the display unit 20 and the external storage device 16, or may be output to both, and the output target may be selected using the operation unit 18. Further, the operation history data may be output to the outside via a communication device.

  In the above, the CPU 10 functions as a means for receiving an output request, a means for acquiring the actual current date and time, a means for detecting the difference between the actual current date and time and the date and time of the internal clock 22, and a means for correcting the event occurrence date and time. The display unit 20 and the external storage device 16 function as output means.

  Next, the operation of the audio broadcasting apparatus 1 described above will be described. When the audio broadcasting device 1 and the speaker 3 are installed and the power is turned on, the operation of the audio broadcasting device 1 starts. At this time, the built-in clock 22 starts ticking from the reference date.

  In the audio broadcasting apparatus 1, an event occurs every time the operation unit 18 is operated for broadcasting output or the like. FIG. 3 shows the operation when an event occurs every time. When an event occurs, the CPU 10 acquires the date and time from the built-in clock 22 (S10), and assigns the acquired date and time as the event occurrence date and time to the generated event content. (S12) The event occurrence date and time and the contents of the occurrence event are stored in the RAM 12 as operation history data (S14). However, since the date / time of the built-in clock 22 is recorded at this time, the event occurrence date / time is different from the actual date / time.

  The CPU 10 records and accumulates operation history data in the RAM 12 every time an event occurs. Further, as shown in FIG. 4, the CPU 10 determines whether or not a predetermined transfer time has arrived based on the date and time information acquired from the built-in clock 22 (S20). The transfer time arrives once a day. Then, when the transfer time comes, the CPU 10 transfers the operation history data of the RAM 12 to the nonvolatile memory 14 (S22). Here, the operation history data stored in the RAM 12 is read and written to the nonvolatile memory 14.

  It is assumed that the worker inputs an output request to the operation unit 18 for the purpose of maintenance work or the like. The output request is, for example, an instruction to display the operation history data on the display unit 20, and is input when browsing the operation history data. Further, for example, the output request is an instruction to read the operation history data to the external storage device 16 and is input when the operation history data is taken out.

  The output request input to the operation unit 18 is accepted by the CPU 10. When receiving the output request, the CPU 10 requests the input of the current date and time using the display unit 20 as shown in FIG. 5 (S30). For example, an image for inputting the current date and time is displayed on the display unit 20 and a message for prompting input is displayed. Then, the current date and time is input to the operation unit 18 by the operator, and the data is acquired by the CPU 10 (S32).

  When the CPU 10 acquires the current date and time data, the CPU 10 acquires the date and time of the built-in clock 22 when the current date and time is input (S34), and detects the difference between the actual current date and time input and the date and time of the built-in clock 22. (S36).

  Based on the detected difference, the CPU 10 corrects the event occurrence date and time included in the operation history data to the actual event occurrence date and time (S38). Here, the CPU 10 reads operation history data from the RAM 12 and the nonvolatile memory 14. From the RAM 12, the operation history data of the day when the output request is input (the day of the built-in clock 22) is read, and the operation history data up to the previous day is read from the nonvolatile memory 14. Then, the CPU 10 changes the event occurrence date and time of the read operation history data so as to be shifted by the difference detected in S36. If the actual current date / time is ahead of the date / time of the built-in clock 22, the event occurrence date / time of the operation history data is advanced. If the actual current date and time is later than the date and time of the built-in clock 22, the event occurrence date and time of the operation history data is returned. The above correction process is performed on the operation history data of each event.

  Next, the CPU 10 outputs the operation history data with the event occurrence date and time corrected (S40). In the output process, the operation history data is displayed on the display unit 20, and the operation history data is output to the external storage device 16. Since the event occurrence date / time that was shifted at the time of recording is corrected, the operation history data to which the correct event occurrence date / time is given is output.

  As described above, according to the audio broadcasting apparatus 1 of the present embodiment, the date and time of the internal clock 22 is stored as the event occurrence date and time of the operation history data. The built-in clock 22 is not provided with a battery for backup, and the date and time of the built-in clock 22 is deviated from the actual date and time. Therefore, the event occurrence date and time at the time of recording is not correct. However, since the event occurrence date / time of the operation history data is corrected based on the difference between the current date / time and the date / time of the internal clock 22 when the operation history data is output thereafter, the operation history data with the correct date / time is output.

  In the above, the audio broadcasting apparatus 1 of the present embodiment uses the fact that the internal clock has some relatively accurate time even if the absolute time is not accurate, so that the time series of the generated events The operation history data is recorded while maintaining the accuracy of the above. Thus, when the operation history data is output, the actual date / time is acquired and the event occurrence date / time is corrected, so that the operation history data can be recorded without requiring highly accurate date / time.

  As described above, according to the present embodiment, even the audio broadcasting apparatus 1 that does not include the battery of the built-in clock 22 can suitably provide the function of recording the operation history data. Since there is no need to install a battery for the built-in clock 22, it is possible to acquire operation history data with an audio broadcasting apparatus that has not been able to acquire operation history data until now, and maintenance work when a problem such as a failure occurs. Useful information can be obtained.

  In addition, when a battery for the built-in clock is provided, it is necessary to periodically replace the battery, or work for correcting the time of the built-in clock at the time of battery replacement. However, even if the time is corrected, the time may not be displayed on the display unit during normal operation in the audio broadcasting apparatus. In this case, the time is displayed for the first time when the operation history data is output in the maintenance work. Further, since there is no equipment failure, maintenance work is not performed, and eventually the time may end without being displayed. Thus, it is not preferable to force the operator to perform time correction work that may be unnecessary. On the other hand, in the present embodiment, it is only necessary to input the current date and time for the first time when it is necessary to output the history, so the above problem can also be avoided.

  The preferred embodiments of the present invention have been described above. In the present embodiment, the built-in clock 22 is built in the CPU 10, but the built-in clock 22 may be outside the CPU 10.

  In addition, this invention is not limited to the above-mentioned embodiment, Of course, those skilled in the art can modify the above-mentioned embodiment within the scope of the present invention.

  As described above, the audio broadcasting apparatus according to the present invention has an effect that an operation history can be recorded even without a built-in battery, and is useful as an audio broadcasting apparatus for private broadcasting or the like.

The block diagram of the audio broadcasting apparatus in embodiment of this invention The figure which shows the audio broadcasting system provided with the audio broadcasting apparatus and the speaker Flow chart showing operation history data recording process Flow chart showing transfer processing of operation history data from RAM to nonvolatile memory Flow chart showing processing when outputting operation history data

Explanation of symbols

1 Audio Broadcasting Device 3 Speaker 10 CPU
12 RAM
14 Nonvolatile memory 16 External storage device 18 Operation unit 20 Display unit 22 Built-in clock

Claims (2)

An audio broadcasting device without a built-in or external battery,
A built-in clock that is not corrected ,
A history data generation unit that generates operation history data including an event occurrence date and time acquired from the internal clock when an event occurs;
A history data storage unit for storing the operation history data;
An output request receiving unit that receives an output request for the operation history data;
When the output request is received, a current date and time acquisition unit that acquires information on the actual current date and time by an operator inputting the actual current date and time,
A difference detection unit that acquires a date and time from the built-in clock when the actual current date and time is acquired, and detects a difference between the actual current date and time and the date and time of the built-in clock;
A date and time correction unit that corrects the event occurrence date and time included in the operation history data to an actual event occurrence date and time based on the detected difference;
A history data output unit that outputs operation history data with the event occurrence date and time corrected;
An audio broadcasting apparatus comprising: A history data processing method used in an audio broadcasting device having a built-in clock that does not have a built-in or external battery and is not corrected for date and time,
And generating an operation history data including the event event occurrence date and time obtained from the internal clock in the event of,
Storing the operation history data;
Receiving an output request for the operation history data;
When the output request is accepted, the operator acquires the actual current date and time information by inputting the actual current date and time;
Obtaining a date and time from the built-in clock when the actual current date and time is acquired, and detecting a difference between the actual current date and time of the built-in clock;
Correcting the event occurrence date and time included in the operation history data to an actual event occurrence date and time based on the detected difference;
Outputting the operation history data in which the event occurrence date and time are corrected;
A history data processing method for an audio broadcasting apparatus, comprising:

Images