JPS6166974A - Warning device - Google Patents

Abstract

PURPOSE:To give an invariably accurate warning by providing a temperature compensating part which generates the warning when specific operation time is counted and also generates the warning corresponding to temperature. CONSTITUTION:An LCD display part 2 which displays the rest of a battery is divided into four areas 2a-2d with a display frame 3(3a-3c). The part 3a of the display frame 3 is painted in, for example, blue and the part 3c is painted in red; when the display is within the display frame of blue 3a, it shows that the rest of the battery is sufficient and when the display varies to the part in the display frame of red 3c, it shows that the rest of the battery is not enough to secure the operation state of the device, waring that the battery needs to be replaced. Further, the display frame 3b uses heat-sensitive cholesteric liquid crystal and is seen blue at room temperatures through the operation of a polarizing plate, but seen blue when the temperature falls. Therefore, even if the object device makes the same display on the display parts 2c and 2d, the display part 3b is seen blue at room temperature and turns red in an extremely low temperature state, thereby warning that the battery needs to be replaced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of application in industry) The present invention relates to a warning device that warns when a device is in a situation where it will no longer operate properly, and in particular the influence of ambient temperature on the device. This invention relates to a warning device that takes into consideration the following.

(Prior Art) In general, a typical case where the operating state of the device becomes inappropriate is when the battery 1E, which is the driving source, is turned off. The battery consumption state is predicted from the number of operating hours of the device, and when the number of operating hours exceeds a certain 4 Ci, the battery consumption state y island is considered to have exceeded the allowable range and a warning table is issued. There is. This method is extremely effective for devices such as cameras that can only accommodate small batteries because it does not consume the battery for measurement, compared to methods that directly measure the battery voltage by drawing current from the battery and issue a warning. It is. However, since this warning is given only by Y measurement based on the number of operating hours of the device, it is not possible to know for sure how the battery is actually depleted. In particular, the capacity of a battery is greatly affected by temperature, so even if it has enough capacity to operate the target device at room temperature, its capacity decreases at low temperatures, causing the device to become unsuitable for operation. A situation arises in which there is no guarantee at all.

For this reason, it is a question of where to set the number of operating hours that will serve as a standard for issuing a warning. This means that the device will not be able to drive at 11'. On the other hand, if you leave base 1 at a low temperature, you will receive a warning even though it can still be used at Fu temperature, so you should replace the battery at 11'.
[Y] This has always been a big problem, especially in Kamazuka's equipment that can only accommodate small batteries, as it has always been a big problem to have to remove the batteries frequently.

(Summary of the Invention) The present invention has been made in view of the following circumstances.1.
When the count unit counts the number of operating hours of the foot for which it is expected that the proper operating state of the equipment in question cannot be guaranteed, a warning unit that emits % (!i) and a warning unit that 1- for different counts in the count section
By providing a temperature compensation section that issues a warning or a warning, it is possible to always give an accurate warning without being affected by temperature, even without directly determining the battery voltage.
l, and the device is intended to be provided.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. Figure 1 shows the state of operation of the target device. ! This is to reduce the display of the warning device to reduce the size of the warning device.Here, we will explain the alarm when the device is no longer driven to ^+E due to consumption of heavy oil. .In Figure 1, l
■ is shaped like a pond on the 7th floor, and is a small CD table, with an LCD table that shows the size of the remaining items in the pond.

It is divided into four areas: 2b, 2c, and 2d. Display frame 3 is color-coded; for example, part 3a is old-colored;
Part 3a is painted red. In 1, the remaining items in the pond decrease according to the operation of the target device + 11f interval IM t, so this h operation 11! The size of the display section 2 disappears one by one from areas 2a to 2d depending on the flil number. As long as this size is within the 6-color size frame, it means that there is still 1.1 remaining in the battery, and when it reaches the part within the red size frame,
'This indicates that the remaining capacity of the battery has decreased to the point where the operating condition of the device is no longer exceeded, and this serves as a warning that the battery needs to be replaced. The display frame 3b is made of heat-sensitive cholesteric liquid crystal, which is used in Temperature 1 & A1, etc., and due to the action of a polarizing plate, it is visible at room temperature, but turns red when the temperature drops. This results in Figure 2.

As shown in FIG. 3, even if the target device operates for the same number of hours and the display section 2 shows the same display on display sections 2C and 2d, in the normal temperature state shown in FIG. Since the display frame 3b is blue, it means that the battery can still be used, and since the display frame 3b is red in the low temperature state of FIG. 3, a warning is given to replace the battery. As a result, without directly measuring the battery voltage, it is possible to accurately display the battery capacity, which fluctuates depending on the temperature, only from the number of operating hours of the device.

FIG. 4 shows an embodiment of a drive circuit for driving the display device 42, taking a camera as an example of the target device. The switch 45 corresponds to a release switch,
After switch 4, switch 5 or ONL, switch 5 is o
After turning off, switch 4 is turned off. 6 is a known photometric circuit and is activated by turning on switch 4. Make sure that the photometry is completed and that switch 5 is turned on.
As a result, the known shutter control circuit 7 is activated, and after the shutter control room r, pulse No. 4A is sent to the known 8L winding circuit 8, the winding circuit 8 is activated, and the photographed portion is sent. . 1 from the shutter control circuit 7. The pulse signal is input to the down counter 9.

One time is counted for each shooting. The output of the town counter 9 is input to the LCD dryer 8-10, and a signal from the oscillator 11 is displayed on the display 1 according to the number of shots taken by the camera (here, the number of shots is taken as the number of operating hours). The remaining battery level will be displayed. Here, the details of the LCD driver IO will be explained based on FIG. 5. The down counter 9 displays the low 2-bit output on the LCD.
Enter into Dry 8-10. Since there are four combinations of outputs of i, (:t, 2hi), the LCD driver 10 displays m 2 (7)
4 [7] Areas 2a, 2b, 2c.

From the state where all 2d is displayed, areas 2b, 2c, 2d, and area 2c are displayed according to the number of times the camera takes pictures.

2d, the display area is decreased from area 2d to l. In this case, if the number of hits of the LCD driver 10 is set to 11 hits, for example, 1. Note: The combination of the outputs of the first and second hits changes 512 times - once per shooting, so by setting the number of hits of the LCDI/liver 10 per shot, there will be no problem at room temperature, but at low temperatures. When the expected number of shots is reached, a problem arises in region 2c.

2d can be displayed.

Town counter 9's 1-4)'I2 pin I output is L
When the CD driver 10 runs out of human power, the inverter 12
．． 13, ant gates 14, 15°, 16.17. In other words, if you want to count the number of shots taken, ant game 1-1
4, l 5.

16. The output of 17 becomes Il'l, Shi'\l one by one at cliff 1. The outputs of the anchors I4.15, 16.17 are output by ORKs 118, l9, 20. No. 4° was manually powered, and Ann!・Kate 15 output or high E/
When it's Hell, Ixful Knob or 22, 23.24
A high-level signal 411 is input to the input terminal of the power, and a high-level signal t'i or human power is input to the input terminal of the power of Atketo Lunobuor 23 and 24, and the output of gate 17 is + -++ At the time of l/hell, the input end of the input terminal of Ixflusive or 24 has a high level (number 1) or human power.
3.24 The output of the oscillator 11 or the output of the oscillator 11 is input to the input terminal of the external force. According to liM, - No. 4d, which is an inversion of the output of the oscillator 11, is output from the exhaust knob OR to which No. 41j at a high level is input to the force input terminal. As a result, an electric field is generated between the oscillator 11 and the exhaustive OR which outputs a signal that is an inversion of the output of the oscillator 11, and when a high level signal 1J- or human power is applied to the exhaustive OR 21, an electric field is generated in the area 2a. is displayed, and when a high-level signal No. 14 is input to the exhaustive OR 22, area 2b is displayed, and when a high-level signal is input to the exhaustive OR 23, area 2C is displayed. When a high level signal is input to the exhaustive OR 24, the area 2d is displayed. Therefore, when the output of anime games 1-14 is at a high level, it is in the area 2a.

2b, 2c, 2d are all displayed, but it is an anime game)
When the output of AND gate 15 becomes high level, area 2a is no longer displayed, when the output of AND gate 16 becomes high level, areas 2a and 2b are no longer displayed, and when the output of AND gate 17 becomes high level, only area 2d is displayed. Become. In other words, the number of shots increases, and the AND gate that outputs a high-level signal is no longer displayed from Antgame 1 and 14 to Atkate 2b and 2c or H'1.

FIG. 6 shows another embodiment for performing temperature compensation without using the thermosensitive liquid crystal shown in FIG. This is a conversion circuit made up of an amplifier circuit. 27.2
8 is > iJ electric 7f K V c and the temperature is 1! There is a resistance for setting. 29 is a comparator that outputs high level A, No. 1 when the ambient temperature becomes lower than the set value. Reference numeral 30 manually inputs the output of the comparator 29 and the output of the oscillator 11 with an exhaustive OR, and when the output of the comparator 29 becomes high level, it outputs No. 16 which is an inversion of the output of the oscillator. 1 is similar to the display shown in Figure 1, but the display frame 2b is not a heat-sensitive liquid crystal.
A normal TN type liquid crystal is provided, and the color is usually blue due to a polarizing plate. When a high level signal is output from the comparator 30, the display frame is 2b changes to red.

The temperature detected by the sensor 25 is converted into a voltage by a conversion circuit 26, and the voltage level is compared by a comparator 29. When the temperature is high, the output of the comparator 29 remains at a low level, so the display frame 3b also remains in four colors, but when the temperature IW becomes low and the output of the comparator 29 becomes a high level, the display frame 3b changes to red.

Therefore, in this case as well, it is possible to appropriately warn the display section 2, which displays the battery's remaining capacity, of the low capacity of the battery, which varies depending on the temperature.

In the above embodiment, the counter 9 counts the number of operations of the target device, and the counter 9 is a predetermined counter that counts the number of operations of the target device. The number of operations is 1. The warning unit that issues a warning when the counting unit counts corresponds to the display LCD driver lO and the display l, and the warning unit issues a warning for different counts of the counting unit L depending on the temperature Iff. The temperature compensator that causes the light to emit corresponds to the display frame 2d.

In addition, in the embodiment described in L, the temperature compensator is configured using a liquid crystal whose color changes depending on the temperature as a large and small frame, but this does not change the display format in some way depending on the temperature. It goes without saying that anything is fine.

Furthermore, in the embodiment L, a warning is given regarding battery consumption according to the number of operating hours; It goes without saying that the present invention will work effectively on any type of item that is affected by temperature I^.

Below 1. As described above, according to the present invention, there is provided a counting unit that counts the number of operating hours of the target device; Ensure proper operating condition of the equipment in question? ') A warning part that issues a warning when the counting part counts the predetermined number of operating hours that are expected to run out, and a different count i- number of the counting part in accordance with the temperature. For 1.
This warning device is equipped with a temperature compensator that emits a warning] 2, so even though it predicts the operating state of the device based on the number of times the device is activated and gives a warning, it does not respond to changes in temperature. It is possible to always accurately warn of inappropriate operating conditions of the target device, even when the device is in use, and its configuration is very in-house, making it very effective as a warning device.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram showing one embodiment of a display device of a warning device according to the present invention, and FIGS. 2 and 3 are schematic diagrams showing the operating state of the display device of FIG. 1. FIG. 4 is a block diagram when the warning device according to the present invention is applied to a camera, FIG. 5 is a partially detailed view of FIG. 4, and FIG. 6 is another implementation of the display device of the warning device according to the present invention. Schematic diagram showing an example. 1... LCD display 2... Display section 3 ・
... Display frame 6 ... Photometry circuit 7 ...
Shutter control circuit 8... 8L conversion circuit 9... Town counter 10... LCDI writer 11... Oscillator 25... Temperature sensor 26... Conversion circuit

Claims (1)

[Claims] A counting section that counts the number of operating hours of the target device, and a warning when the counting section counts a predetermined number of operating hours that are expected to make it impossible to guarantee the proper operating state of the target device. A warning device comprising: a warning section that issues a warning; and a temperature compensator that causes the warning section to issue a warning for different counts of the counting section depending on the temperature.