KR101990365B1 - Method for controlling electronic apparatus, electronic apparatus and camera - Google Patents

Abstract

A control method of an electronic product, an electronic product, and a camera are disclosed. A control method according to an embodiment of the present invention is a method of controlling an electronic product having a power supply unit, the steps (a) to (c) being included. In step (a), when the power supply unit is turned on, the internal temperature of the electronic product is measured. In step (b), if the measured internal temperature is lower than the set steady temperature, a spare part is additionally connected to the power supply part so that an additional current flows in the spare part. In the step (c), if the internal temperature measured after the additional current flows through the spare part is equal to or higher than the set normal temperature, the spare part is separated from the power supply part, and no additional current flows in the spare part.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a control method for an electronic product,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method for an electronic product, an electronic product, and a camera, and more particularly, to a control method for an electronic product, an electronic product, and a camera that can be used in a cryogenic environment.

In the case of an electronic product, for example a camera, it can be used in a cryogenic environment. If the electronic product is immediately initialized when the user turns on the electronic product in a cryogenic environment, the electronic product malfunctions.

Therefore, in the case of an electronic product used in a cryogenic environment, the heater is operated in the past, and initialization and main operation are performed when the temperature becomes equal to or higher than room temperature.

According to such an electronic product, three heater-temperature sensors for detecting the low temperature, the normal temperature and the high temperature of the heater and the heater are required. Here, the heater-temperature sensor for sensing the low temperature is for turning on the heater, the heater-temperature sensor for sensing the room temperature is for performing the initialization mode, and the heater-temperature sensor Is for turning off the heater.

Thus, according to conventional electronic products, a significant number of components are added in order to be used in a cryogenic environment. Thus, there is a problem that the probability of failure of the electronic product is increased, it is difficult to miniaturize, and the manufacturing cost is increased.

Korean Patent Publication No. 1996-0034720 Applicant: Kia Motors Corporation Title: Glow plug current control device and method thereof

Embodiments of the present invention are intended to provide an electronic product control method, an electronic product, and a camera that can reduce the probability of failure of an electronic product used in a cryogenic environment, improve miniaturization, and reduce manufacturing cost.

According to a first aspect of the present invention, in a method of controlling an electronic product having a power supply unit, steps (a) to (c) may be included.

In the step (a), when the power supply unit is turned on, the internal temperature of the electronic product is measured.

In the step (b), if the measured internal temperature is lower than the preset normal temperature, the power supply unit is additionally connected to the spare unit, so that the additional current flows in the spare unit.

In the step (c), if the internal temperature measured after the additional current flows through the spare part is greater than or equal to the set normal temperature, the spare part is separated from the power supply part, It will not flow.

According to a second aspect of the present invention, an electronic product including a power supply, a main circuit, a mechanism, motors, a control unit, a temperature sensor, a spare part, and a load switch may be provided.

And the main circuit section is operated by a power source from the power supply section.

The motors provide power for movement of the mechanical part.

The control unit operates by a power source from the power supply unit.

The temperature sensor measures the internal temperature of the electronic product.

The load switch is connected between the power supply and the spare part.

Here, if the internal temperature measured by the temperature sensor is lower than the preset normal temperature, the control unit turns on the load switch so that the additional current .

Further, if the internal temperature measured by the temperature sensor after the load switch is turned on is equal to or higher than the set normal temperature, the load switch is turned off so that no additional current flows in the spare part.

On the other hand, when the load switch includes one terminal, another terminal, and a control terminal, the spare part includes one terminal and another terminal, and one terminal of the load switch is connected to one output power terminal The other terminal of the load switch is connected to the one terminal of the spare part, the other terminal of the spare part is grounded, and a switching control signal from the control part is supplied to the control terminal of the load switch, Can be input.

In addition, the spare part may be a plurality of resistors connected in parallel to each other between the load switch and the ground terminal.

Further, the distance between the motors and the power supply unit may be shorter than the distance between the motors and the main circuit unit.

Further, a heat sink and a circulating fan may be further included. Here, the heat sink radiates the heat of the power supply unit. The circulating fan is provided to circulate radiant heat from the heat sink.

When the internal temperature measured by the temperature sensor is lower than a preset normal temperature, the control unit turns on the circulating fan after the load switch is turned on, ). When the internal temperature measured by the temperature sensor after the load switch and the circulating fan are turned on is equal to or higher than the preset normal temperature, the circulating fan is turned off after the load switch is turned off, .

According to a third aspect of the present invention, a camera including a power supply unit, a main circuit unit, an optical system, motors, a control unit, a temperature sensor, a spare part, and a load switch may be provided.

And the main circuit section is operated by a power source from the power supply section.

The motors provide power for movement of the optical system.

The control unit operates by a power source from the power supply unit.

The temperature sensor measures the internal temperature of the camera.

The load switch is connected between the power supply and the spare part.

Here, if the internal temperature measured by the temperature sensor is lower than the preset normal temperature, the control unit turns on the load switch so that the additional current .

Further, if the internal temperature measured by the temperature sensor after the load switch is turned on is equal to or higher than the set normal temperature, the load switch is turned off so that no additional current flows in the spare part.

According to the electronic product control method, the electronic product, and the camera according to the embodiments of the present invention using the heat generating characteristics of the power supply unit, if the internal temperature of the electronic product is lower than the set normal temperature after the power supply unit is turned on , A spare part is further connected to the power supply part, and an additional current flows in the spare part.

For example, before the initialization mode is performed in a cryogenic environment, the maximum current flows in a range in which the power supply unit can supply due to the additional current flowing in the spare unit.

Accordingly, since the power supply unit generates a large amount of heat, the internal temperature of the electronic product can be rapidly increased.

Therefore, since a separate heater and three heater-temperature sensors are not required as in the conventional art, many effects can be obtained accordingly. That is, the failure probability of the electronic product or the camera is reduced, the miniaturization is improved, and the manufacturing cost can be reduced.

In addition, since the spare part is a plurality of resistors connected in parallel to each other, the life span of the spare part can be extended due to the current dispersion.

Further, as the distance between the motors and the power supply part is shorter than the distance between the motors and the main circuit part, the motors whose operation performance is poor at low temperature can be heated faster and sufficiently.

By using the heat sink and the circulation fan, the temperature of the electronic product or the camera can be increased faster and more uniformly.

1 is a flowchart showing a control method of an electronic product according to an embodiment of the present invention.
2 is a diagram showing the configuration and operation of an electronic product according to the first embodiment of the present invention.
3 is a flowchart showing the control operation of the control unit of the electronic product of Fig.
Fig. 4 is a diagram for explaining the arrangement relationship of the main components of Fig. 2. Fig.
5 is a diagram showing the configuration and operation of an electronic product according to a second embodiment of the present invention.
6 is a flowchart showing the control operation of the control unit of the electronic product of Fig.
7 is a diagram showing a configuration and operation of a camera according to an embodiment of the present invention.

The following description and accompanying drawings are for understanding the operation according to the present invention, and parts that can be easily implemented by those skilled in the art can be omitted.

Furthermore, the specification and drawings are not intended to limit the present invention, and the scope of the present invention should be determined by the claims. The terms used in the present specification should be construed to mean the meanings and concepts consistent with the technical idea of the present invention in order to best express the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 shows a control method of an electronic product according to an embodiment of the present invention. A method of controlling an electronic product according to an embodiment of the present invention will now be described with reference to FIG.

When the power supply unit of the electronic product is turned on (step S101), the internal temperature Tim of the electronic product is measured (step S103). Also, the measured internal temperature Tim is compared with the set normal temperature Tset (step S105).

If the internal temperature Tim is equal to or higher than the set normal temperature Tset in step S105, the main operation control is performed until the end signal is generated after the initialization mode is performed (step S115) (steps S117 and S119) .

If the internal temperature (Tim) is lower than the preset normal temperature (Tset) in the step S105, the standby mode of the electronic product is performed (step S107), and the spare part is additionally connected to the power supply part, (Step S109). Accordingly, since the power supply unit generates a large amount of heat, the internal temperature of the electronic product can quickly rise.

Next, the measured internal temperature Tim and the set normal temperature Tset are compared with each other after the additional current flows in the spare part (step S111).

If the internal temperature Tim is equal to or higher than the preset normal temperature Tset in step S111, the spare part is separated from the power supply part, and no additional current flows in the spare part (step S113). Further, after the initialization mode is performed (step S115), main operation control is performed until an end signal is generated (steps S117 and S119).

In summary, when the internal temperature Tim of the electronic product is lower than the set normal temperature Tset after the power supply unit is turned on (step S101), the spare power supply unit is additionally connected to the power supply unit, An additional current flows.

For example, before the initialization mode is performed in a cryogenic environment, the maximum current flows in a range in which the power supply unit can supply due to the additional current flowing in the spare part.

Accordingly, since the power supply unit generates a large amount of heat, the internal temperature of the electronic product can quickly rise.

Therefore, since a separate heater and three heater-temperature sensors are not required as in the conventional art, many effects can be obtained accordingly. That is, the failure probability of the electronic product is reduced, the miniaturization is promoted, and the manufacturing cost can be reduced.

Fig. 2 shows the configuration and operation of the electronic product of the first embodiment of the present invention.

2, the electronic product of the first embodiment of the present invention includes a power supply unit 21, a main circuit unit 22, a mechanical unit 23, motors M1 and M2, a control unit 25, a temperature sensor 26 ), A spare part (27), and a load switch (28).

The power supply unit 21 receives the AC power ACin and generates DC power of various voltages.

The main circuit unit 22 is operated by the power source DCout from the power supply unit 21.

The motors M1 and M2 provide power for movement of the mechanism portion 23. [

The control unit 25 operates by the power source (DCout) from the power supply unit 21.

The temperature sensor 26 provides the measured result data to the control unit 25 while measuring the internal temperature of the electronic product.

The load switch 28 is connected between the power supply unit 21 and the spare unit 27.

When the internal temperature measured by the temperature sensor 26 is lower than the preset normal temperature, the control unit 25 controls the load switch 28 to be turned on when the power supply unit 21 receives the power supply (ON), so that an additional current flows in the spare part 27. [

For example, before the initialization mode is performed in the cryogenic environment, the maximum current flows in the range in which the power supply unit 21 can supply due to the additional current flowing in the spare unit 27. [

Accordingly, since the power supply unit 21 generates a large amount of heat, the internal temperature of the electronic product can rapidly rise.

Therefore, since a separate heater and three heater-temperature sensors are not required as in the conventional art, many effects can be obtained accordingly. That is, the failure probability of the electronic product is reduced, the miniaturization is promoted, and the manufacturing cost can be reduced.

On the other hand, when the internal temperature measured by the temperature sensor 26 after the load switch 28 is turned on is equal to or higher than the set normal temperature, the load switch 28 is turned off and added to the spare part 27 So that no current flows.

More specifically, the load switch 28 includes one terminal 28a, another terminal 28b, and a control terminal 28c. The spare part 27 includes one terminal 27a and another terminal 27b.

One terminal 28a of the load switch 28 is connected to one output power supply terminal 21a of the power supply unit 21. [ The other terminal 28b of the load switch 28 is connected to the terminal 27a of the spare part 27. [ And the other terminal 27b of the spare part 27 is grounded. The switching control signal from the control unit 25 is input to the control terminal 28c of the load switch 28. [

In this embodiment, the spare part 27 is a plurality of resistors R1 to Rn connected in parallel with each other between the load switch 28 and the ground terminal. Thus, the life of the spare part 27 can be prolonged due to the current dispersion.

Fig. 3 shows the control operation of the control unit 25 of the electronic product of Fig. Referring to FIGS. 2 and 3, the control operation of the control unit 25 of the electronic product of FIG. 2 will be described as follows.

When the power supply unit 21 is turned on (step S301), that is, when the power supply DCout from the power supply unit 21 is applied to the control unit 25 and the main circuit unit 22, And compares the measured internal temperature with the set normal temperature Tset (step S303).

If the internal temperature Tim is equal to or higher than the set normal temperature Tset in step S303, the controller 25 performs the main operation control until the end signal is generated (step S313) Steps S315 and S317).

If the internal temperature Tim is lower than the preset normal temperature Tset in step S303, the control unit 25 performs the standby mode of the electronic product (step S305), turns on the load switch 28 And an additional current flows through the spare part 27 (step S307). Accordingly, since the power supply unit 21 generates a large amount of heat, the internal temperature of the electronic product can rapidly rise.

Next, the control unit 25 compares the measured internal temperature Tim with the set normal temperature Tset after the additional current flows in the spare unit 27 (step S309).

If the internal temperature Tim is equal to or higher than the preset normal temperature Tset in step S309, the control unit 25 turns off the load switch 28 so that no additional current flows in the reserve unit 27 Step S311). In addition, the control unit 25 performs the main operation control until the end signal is generated (step S315) after performing the initialization mode (step S313).

Fig. 4 is a diagram for explaining the arrangement relationship of the main components of Fig. 2. Fig.

4, the distance d1 between the motors M1 and M2 and the power supply unit 21 is a distance d2 between the motors M1 and M2 and the main circuit unit 22, It is shorter. Of course, the distance d1 between the motors M1 and M2 and the power supply 21 is the average of the distances between each of the motors M1 and M2 and the power supply 21, And the distance d2 between the main circuit portion 22 and the main circuit portion 22 may be an average of distances between each of the motors M1 and M2 and the main circuit portion 22. [

As a result, the motors M1 and M2, which are poor in operating performance at low temperatures, can be heated more quickly and sufficiently.

5 shows the configuration and operation of an electronic product according to a second embodiment of the present invention. In Fig. 5, the same reference numerals as those in Fig. 2 denote objects having the same function. However, slight additions to the control operation of the control unit 25 occur.

The difference of the second embodiment of Fig. 5 relative to the first embodiment of Fig. 2 is that the heat sink 51 and the circulating fan 52 are further included. Here, the heat radiating plate 51 radiates heat of the power supply unit 21. The circulation fan (52) is provided to circulate radiant heat from the heat sink (51). Therefore, some additions to the control operation of the control unit 25 occur.

Fig. 6 shows a control operation of the control unit 25 of the electronic product of Fig. Referring to FIGS. 5 and 6, the control operation of the control unit 25 of the electronic product of FIG. 5 will be described below.

When the power supply unit 21 is turned on in step S601, that is, when the power source DCout from the power supply unit 21 is applied to the control unit 25, the main circuit unit 22, and the circulating fan 52, The controller 25 compares the internal temperature measured by the temperature sensor 26 with the set normal temperature Tset (step S603).

If the internal temperature Tim is equal to or higher than the preset normal temperature Tset in step S603, the control unit 25 performs the main operation control until the end signal is generated (step S617) Steps S619 and S621).

If the internal temperature Tim is lower than the set normal temperature Tset in step S603, the control unit 25 performs the standby mode of the electronic product (step S605), turns on the load switch 28 And an additional current is allowed to flow through the spare part 27 (step S607). Accordingly, since the power supply unit 21 generates a large amount of heat, the internal temperature of the electronic product can rapidly rise.

The control unit 25 also turns on the circulating fan 52 to circulate the radiation heat from the heat sink 51 (step S609). As a result, the temperature of the electronic product can be increased faster and more uniformly.

 Next, the control unit 25 compares the measured internal temperature Tim with the set normal temperature Tset after the additional current flows in the spare unit 27 (step S611).

If the internal temperature Tim is equal to or higher than the preset normal temperature Tset in step S611, the control unit 25 turns off the load switch 28 so that no additional current flows in the reserve unit 27 Step S613). Further, the control unit 25 turns off the circulating fan 52 (step S615).

Further, the control unit 25 performs the main operation control until the end signal is generated (steps S619 and S621) after performing the initialization mode (step S617).

FIG. 7 shows the configuration and operation of a camera, for example, a surveillance camera in an embodiment of the present invention.

7, the camera of the embodiment of the present invention includes a power supply unit 71, main circuit units (OECs 720 to 725), an optical system 73, motors Ma, Mz, Mf, Md, Mp, A control unit 75, a temperature sensor 76, a spare part 77, and a load switch 78. [

The power supply unit 71 receives the AC power ACin and generates DC power of various voltages.

The main circuit units (OEC) 720 to 725 operate by the power source (DCout) from the power supply unit 71. [

The motors Ma, Mz, Mf, Md, Mp, Mt provide power for movement of the optical system 73.

A digital signal processor (DSP) as the control unit 75 is operated by the power source (DCout) from the power supply unit 71.

The temperature sensor 76 measures the internal temperature of the camera.

The load switch 77 is connected between the power supply part 71 and the spare part 77. [

The control unit 75 turns on the load switch 78 when the internal temperature measured by the temperature sensor 76 is lower than the preset normal temperature when the power supply unit 71 receives the power supply DCout, So that an additional current flows through the spare part 77. [

For example, before the initialization mode is performed in the cryogenic environment, the maximum current flows in the range in which the power supply unit 71 can supply due to the additional current flowing in the spare unit 77. [

Accordingly, since the power supply unit 71 generates a large amount of heat due to its characteristics, the internal temperature of the camera can quickly rise.

Therefore, since a separate heater and three heater-temperature sensors are not required as in the conventional art, many effects can be obtained accordingly. That is, the probability of failure of a camera to be used in a cryogenic environment is reduced, miniaturization is promoted, and manufacturing cost can be reduced.

On the other hand, if the internal temperature measured by the temperature sensor 76 is higher than the set normal temperature after the load switch 78 is turned on, the digital signal processor DSP as the control unit 75 turns off the load switch 78 (Off) so that no additional current flows in the spare part (77).

More specifically, the load switch 78 includes a terminal 78a, another terminal 78b, and a control terminal 78c.

The spare portion 77 includes a terminal 77a and another terminal 77b.

One terminal 78a of the load switch 78 is connected to one output power supply terminal 71a of the power supply 71. [ The other terminal 78b of the load switch 78 is connected to a terminal 77a of the spare part 77. [ And the other terminal 77b of the spare part 77 is grounded. The switching control signal from the control unit 75 is inputted to the control terminal 78c of the load switch 78. [

In this embodiment, the spare part 77 is a plurality of resistors R1 to Rn connected in parallel with each other between the load switch 78 and the ground terminal. Thus, the life of the spare part 77 due to the current dispersion can be prolonged.

The distance Ma between the motors Ma, Mz, Mf, Md, Mp, Mt, and the power supply 71 is greater than the distance between the motors Ma, Mz, Mp, Mt) and the main circuit portion (OEC, 720 to 725) (corresponding to d2 in Fig. 4).

The distance between the motors Ma, Mz, Mf, Md, Mp, Mt and the power supply 71 (corresponding to d1 in Fig. And the distance d2 between the motors Ma, Mz, Mf, Md, Mp, and Mt and the main circuit units OECs 720 to 725 is the average of the distances between the motors Ma, Mz, Mf, Md, Mp, Mt) and the center of the main circuit portion (OEC, 720 to 725).

Accordingly, the motors (Ma, Mz, Mf, Md, Mp, Mt) whose operation performance is poor at low temperature can be heated faster and sufficiently.

In the case of the camera of this embodiment, the motors Ma, Mz, Mf, Md, Mp and Mt are driven by the diaphragm motor Ma, the zoom motor Mz, the focus motor Mf, the filter motor Md, Mp) and a tilting motor (Mt).

The diaphragm motor Ma drives the diaphragm, the zoom motor Mz drives the zoom lens, and the focus motor Mf drives the focus lens. The filter motor Md drives the optical low-pass filter OLPF and the infrared cut filter IRF in the filter unit. The panning motor Mp rotates the optical system OPS to the left and right. The tilting motor Mt rotates the optical system OPS up and down.

The main circuit unit OECs 720 to 725 includes a photoelectric conversion unit OEC, a driving unit 720, a CDS-ADC (Correlation Double Sampler and Analog-to-Digital Converter) 401, a timing circuit 722, 723, a video-signal generating unit 724, and an interface unit 725.

A photoelectric conversion unit (OEC) of a CCD (Charge Coupled Device) or a CMOS (Complementary Metal-Oxide-Semiconductor) converts light from the optical system 73 into an electrical analog signal. Here, a digital signal processor (DSP) as the control unit 75 controls the timing circuit 722 to control the operations of the photoelectric conversion unit OEC and the CDS-ADC 721.

The driving unit 720 drives the motors Ma, Mz, Mf, Md, Mp, and Mt under the control of the microcomputer 723.

The CDS-ADC 721 processes the analog video signal from the photoelectric conversion unit OEC to generate a digital video signal. More specifically, the CDS-ADC 721 processes an analog video signal from the photoelectric conversion unit OEC, removes the high-frequency noise, adjusts the amplitude, and converts the digital video data. The digital image data is input to a digital signal processor (DSP) as a control unit 75.

The microcomputer 723 controls the operation of the driving unit 720 while being operated under the control of the digital signal processor (DSP) as the control unit 75.

The video-signal generating unit 724 converts the digital video signal from the digital signal processor (DSP) as the control unit 75 into the video signal Svid1 as the analog video signal.

The digital signal processor 407 communicates the video signal Svid1 from the video-signal generator 724 to an external device, for example, a host (not shown) via the interface 22, To the device. 7, Svid denotes a video signal to be transmitted, Sse denotes communication signals with external sensors, and Sco denotes a communication signal with an external device, for example, with the host device.

As described above, according to the electronic product control method, the electronic product, and the camera according to the embodiments of the present invention, if the internal temperature of the electronic product is lower than the set normal temperature after the power supply is turned on, Is additionally connected, so that an additional current flows through the spare part.

For example, before the initialization mode is performed in a cryogenic environment, the maximum current flows in a range in which the power supply unit can supply due to the additional current flowing in the spare part.

Accordingly, since the power supply unit generates a large amount of heat, the internal temperature of the electronic product can quickly rise.

Therefore, since a separate heater and three heater-temperature sensors are not required as in the conventional art, many effects can be obtained accordingly. That is, the probability of failure of an electronic product or a camera used in a cryogenic environment is reduced, miniaturization is promoted, and manufacturing cost can be reduced.

In addition, the life of the spare part can be extended as the spare part is a plurality of resistors connected in parallel with each other.

Further, as the distance between the motors and the power supply is shorter than the distance between the motors and the main circuit part, the motors whose operating performance is poor at low temperature can be heated faster and sufficiently.

Further, by using the heat sink and the circulation fan, the temperature of the electronic product or the camera can be increased more quickly and uniformly.

The present invention has been described above with reference to preferred embodiments. It will be understood by those skilled in the art that the present invention may be embodied in various other forms without departing from the spirit or essential characteristics thereof.

Therefore, the above-described embodiments should be considered in a descriptive sense rather than a restrictive sense. The scope of the present invention is defined by the appended claims rather than by the foregoing description, and the inventions claimed by the claims and the inventions equivalent to the claimed invention are to be construed as being included in the present invention.

There is a possibility of being used not only for electronic products but also for various products including a power supply unit.

21: power supply part, 22: main circuit part,
23: mechanism part, M1, M2: motors,
25: control unit, 26: temperature sensor,
27: spare part, 28: load switch,
51: heat sink, 52: circulating fan,
71: power supply unit, OEC, 720 to 725: main circuit unit,
73: Optical system, Ma, Mz, Mf, Md, Mp, Mt: motors,
75: control unit, 76: temperature sensor,
77: spare part, 78: load switch.

Claims (8)

delete delete delete delete delete delete delete Power supply;
A main circuit unit operated by a power source from the power supply unit;
Optical system;
Motors providing power for movement of the optical system;
A control unit operated by a power source from the power supply unit;
A temperature sensor for measuring the internal temperature of the camera;
Spare parts; And
And a load switch connected between the power supply and the spare part,
Wherein, when the control unit receives power from the power supply unit and operates,
If the internal temperature measured by the temperature sensor is lower than the set normal temperature, the load switch is turned on to allow an additional current to flow in the spare part,
When the internal temperature measured by the temperature sensor is higher than the set normal temperature after the load switch is turned on, the load switch is turned off so that no additional current flows in the spare part,
The spare part is a plurality of resistors connected in parallel to each other,
Wherein a distance between the motors and the power supply unit is shorter than a distance between the motors and the main circuit unit,
A heat sink for radiating heat of the power supply unit; And
Further comprising a circulation fan for circulating radiant heat from the heat sink.

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