JPH05324973A - Energizing time measuring device and television receiver - Google Patents

Abstract

PURPOSE:To provide a device which can easily measure the energizing time by means of a microcomputer with built-in equipment without using any special means such as a motor by measuing the time only in an energizing mode to store the measured time in a memory and then to display it by a display means. CONSTITUTION:When the power is supplied to an entire device, a time measuring means 2 reads the time information out of a storage means 3 and sets it to an internal counter. The means 2 also sends the present time information to a display device 4. Then, a power detecting means 1 detects the operation of a power supply and knows an energizing mode. Thus, the means 1 sends this information to the means 2. When this state lasts, the means 2 counts up the internal counter and stores the present time information in the means 3 after one hour passed. At the same time, the means 2 sends the time information up to the present time to the means 4. The means 4 shows the time information based on the received information and also shows a message when the time information exceeds a fixed time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an energization time measuring device for measuring and displaying an energization time.

[0002]

2. Description of the Related Art In recent years, demands for quality have been increasing in industry, such as enactment of consumer protection law. In the television industry in particular, there has been a big problem in the television circuit due to a fire caused by deterioration of parts such as a high-voltage circuit, a power supply circuit, a printed circuit board, and the like over time. Under such circumstances, there is a need for an energization time measuring device capable of measuring how many hours a TV set or the like has been used.

The conventional energization time measuring device uses a motor or the like to rotate during the energization time and moves a meter or the like.

[0004]

However, in the above-mentioned structure, an unnecessary motor or meter is usually required for the operation of the equipment, and it is detected that the energization time exceeds a certain amount. There was a problem that it was difficult to realize that the message of "is issued." In view of such a point, the present invention provides a conduction time measuring device that is very easy to realize by a microcomputer currently built in many devices, not a special means such as a motor, and has functions such as message output. Aim to achieve.

[0005]

In order to achieve this object, the energization time measuring device of the present invention has a power state detecting means for detecting whether or not the power is on, and a time for measuring the time during energization. A measuring means, a storage means such as a non-volatile memory for storing the energization time, and a display means for displaying the energization time are provided.

[0006]

The present invention, due to the above-mentioned structure, can be applied only when the power is on.
It becomes possible to measure the time, store it in the memory, and display it by the display means.

[0007]

FIG. 1 is a block diagram showing an example of an energization time measuring device according to an embodiment of the present invention. Here, for the sake of simplicity, an energization time measuring device having a resolution of 1 hour will be described. Reference numeral 1 denotes a power source detecting means for controlling the on / off state of the power source, which can detect whether or not power is being supplied. Two
Is a time measuring means, which has a counter inside and measures time. A storage means 3 stores time information. In this example, a case where a non-volatile memory is used will be described.
A display unit 4 displays time information, messages and the like.

The operation of the energization time measuring device configured as described above will be described below.

First, as a preparation, the information of the energization time 0 is written in the storage means of 3. First, when the power of the entire apparatus is turned on, the time measuring means 2 reads the time information from the storage means 3 and sets it in the internal counter.
Further, the time measuring means 2 sends the current time information to the display means 4.

Next, when the power supply detecting means 1 detects the operation of the power supply and detects that the power is being supplied, the information is transmitted to the time measuring means 2. When this state continues, the time measuring means 2 counts up the internal counter, and when 1 hour has passed, the current time information is stored in the storage means 3. At the same time, the time measuring means 2 conveys time information up to the present time to the display means 4, and the display means 4 displays the time information according to the information. Further, the display means 4 displays a message when the time information exceeds a certain time.

Next, when it is detected that the power source detecting means 1 is not energized and the information is transmitted to the time measuring means 2, the time measuring means 2 stops counting up.

Although the display means 4 always displays the time information in the above description, the display operation input means may be provided to display the time only when the input is made.

[0013]

As described above, according to the present invention, by providing the power source detecting means, the time measuring means, the storing means, and the displaying means, which are very easily realized by the microcomputer used in many devices, An energization time measuring device can be provided very easily, and its practical effect is great.

[Brief description of drawings]

FIG. 1 is a block diagram of an energization time measuring device according to an embodiment of the present invention.

FIG. 2 is a display example of an energization time measuring device according to an embodiment of the present invention.

FIG. 3 is a flowchart showing an example of a program that realizes the energization time measuring device according to the embodiment of the present invention.

[Explanation of symbols]

 1 power supply detecting means 2 time measuring means 3 storage means 4 display means

Claims (3)

[Claims] 1. An energization time measuring device comprising a power supply state measuring device, a time measuring device, a storage unit and a display unit. 2. The energization time measuring device according to claim 1, further comprising a function of outputting a message. 3. A television receiver including the energization time measuring device according to claim 1 or 2.