CN213586006U - Automatic shooting control device - Google Patents

Abstract

The embodiment of the utility model provides an automatic shooting control device, which comprises a microprocessor unit, a power management unit, a work indicator lamp unit, a focusing signal processing unit, a half-press shutter circuit unit and a full-press shutter release circuit unit; the microprocessor unit comprises a high-precision oscillator circuit, a power-on reset circuit, a timer circuit and an undervoltage detection circuit, wherein the high-precision oscillator circuit is arranged in the microprocessor unit, and the microprocessor unit is used for controlling execution and operation of programs. The automatic shooting control device is composed of only six components, can realize automatic shooting operation of the digital camera, and has the advantages of rapid response, simple structure, few components and low device cost. The power management unit has the functions of current and voltage limiting, so that the whole power consumption of the automatic shooting control device is low. The digital camera is not required to be changed by any software and hardware and any setting is carried out on the control device, the camera is simply set, automatic shooting can be realized, and the operation is simple and convenient.

Description

Automatic shooting control device

Technical Field

The utility model relates to a photographic camera equipment technical field, concretely relates to automatic shoot controlling means.

Background

A digital camera, also called a digital camera, is an electronic photographing apparatus that converts an optical image into electronic data using an electronic sensor, and is also a product integrating optics, mechanics, and electronics. The digital image capturing device integrates components of image information conversion, storage, transmission and the like, and has the characteristics of digital access mode, interactive processing with a computer, real-time shooting and the like. The digital camera mainly comprises three functional modules: an imaging module (CMOS or CCD), a focusing module (contrast focusing or phase focusing), and a shutter assembly (electronic shutter or mechanical shutter).

The trend of digital cameras is to move to higher pixels, higher image quality, faster continuous shooting speed and faster focusing speed, and the above elements basically determine the level of a camera (entry level, quasi-professional level and professional level). In some special use occasions, such as news reporters working process, wild animal (such as birds) shooting, macro shooting, automatic monitoring and other use scenes, the response speed of the digital camera is slow by manually pressing the shutter, so that the problems that shooting targets are missed or manually shot photos are not clear due to inaccurate focusing and the like easily occur.

Therefore, how to solve the problem of automatic shooting of digital cameras has become a technical problem to be solved urgently in the industry.

SUMMERY OF THE UTILITY MODEL

To the technical problem above, the utility model provides an automatic shoot controlling means, this automatic shoot controlling means have component element few, with low costs, low power dissipation, easy operation convenient characteristics.

An automatic shooting control device is characterized by comprising a microprocessor unit, a power supply management unit, a work indicator lamp unit, a focusing signal processing unit, a half-press shutter circuit unit and a full-press shutter circuit unit;

the microprocessor unit comprises a high-precision oscillator circuit, a power-on reset circuit, a timer circuit and an under-voltage detection circuit, wherein the high-precision oscillator circuit is arranged in the microprocessor unit, and the microprocessor unit is used for controlling execution and operation of programs.

Furthermore, the power management unit is electrically connected with the microprocessor unit, the power management unit comprises a power charging management chip, a linear power chip and a power electronic switch, and the power management unit is used for controlling the safe charging and discharging of the power supply.

Further, the work indicator light unit is electrically connected with the microprocessor unit, the work indicator light unit comprises an LED lamp, and the LED lamp indicates different working states of the automatic shooting control device through different stroboflash.

Further, the focusing signal processing unit is electrically connected with the microprocessor unit, and the focusing signal processing unit comprises a sound pickup which is used for being connected with an earphone jack of the camera, so that a focusing signal of the camera is collected.

Furthermore, the focusing signal processing unit further comprises a mobile phone interference suppression circuit, a filter circuit, an amplifying circuit and a shaping circuit, and is used for filtering out noise and ensuring high precision of the focusing signal collected by the pickup.

Further, the half-press shutter circuit unit is electrically connected with the microprocessor unit, the half-press shutter release circuit unit comprises a PMOS (P-channel metal oxide semiconductor) tube, when a shutter of the camera is half-pressed, the PMOS tube is conducted, and the automatic shooting control device enters a working state.

Further, the half-press shutter release circuit unit further includes a clamping diode for preventing static electricity from being introduced to damage the shutter circuit.

Furthermore, the full-press shutter release circuit unit is electrically connected with the microprocessor unit, the full-press shutter release circuit unit comprises an electronic shutter release, the electronic shutter release comprises an NPN type triode, the electronic shutter release is used for being connected with a shutter release interface of the camera, and when a focusing signal is detected, the microprocessor unit triggers the electronic shutter release to enable the camera to enter a shooting state.

Furthermore, the microprocessor unit is a single chip microcomputer, and the power management unit, the working indicator light unit, the focusing signal processing unit, the half-pressing shutter circuit unit and the full-pressing shutter circuit unit are all embedded in an EPROM storage area of the single chip microcomputer.

The utility model provides an automatic shoot controlling means includes microprocessor unit, power management unit, work pilot lamp unit, closes burnt signal processing unit, half presses shutter circuit unit and presses shutter circuit unit entirely, and power management unit, work pilot lamp unit, close burnt signal processing unit, half press shutter circuit unit and press shutter circuit unit entirely all with microprocessor unit electrical connection together. The microprocessor unit is used as the central processing unit of the automatic shooting control device, is a control core for program execution and operation, is also a final execution unit for information processing and program operation, and respectively controls different units electrically connected with the microprocessor unit to complete different work of each part. More specifically, the microprocessor unit comprises a high-precision oscillator circuit, a power-on reset circuit, a timer circuit and an undervoltage detection circuit, wherein the high-precision oscillator circuit provides a basic clock signal for the microprocessor unit system, so that the rhythm of program operation is controlled; the power-on reset circuit is used for controlling the open circuit and the short circuit of the capacitor so as to control the power-on reset operation of the microprocessor unit; the timer circuit is also called a watchdog circuit and is used for regularly checking the internal condition of the microprocessor unit and sending a restart signal with the highest priority level once an error occurs; the undervoltage detection circuit is used for detecting whether the microprocessor unit has power failure or not in the operation process, and when the power failure occurs, the protection circuit can actively adopt a power failure protection mode. More specifically, the microprocessor unit does not need an external crystal oscillator circuit, and a high-precision oscillator circuit is integrated in a storage area of the microprocessor unit to provide working signal pulses for the microprocessor unit, so that more stable frequency is obtained.

In some special use occasions, the condition that leads to digital camera response speed slow according to the shutter through the manual work appears easily, and the utility model discloses an in the scheme, need not to make the change of any software and hardware to digital camera, only need through adding the signal sensor that focuses on outside the digital camera, under this automatic shooting controlling means's control, can realize that digital camera accomplishes quick, clear automatic shooting operation through microprocessor unit's program algorithm. The method specifically comprises the following steps: when the dynamic shot object enters the preset focus range of the digital camera, the shutter of the digital camera is automatically released immediately under the control of the automatic shooting control device, so that the instant image of the dynamic shot object is recorded, and the rapid and clear automatic shooting operation is completed.

Therefore, the utility model discloses an automatic shooting control device compares in prior art, has following beneficial effect at least:

the automatic shooting control device only consists of six components, can realize the automatic shooting operation of the digital camera, and has the advantages of quick response, simple structure, few components and low device cost;

secondly, the power management unit has the functions of current limiting and voltage limiting, so that the whole power consumption of the automatic shooting control device is low, and the power consumption of the whole automatic shooting control device can be less than 0.5mA/3.7 v;

and thirdly, the digital camera is not required to be changed in any software and hardware and any setting is carried out on the control device, and automatic shooting can be realized only by simply setting the camera, so that the operation is simple and convenient.

Drawings

Fig. 1 is a schematic diagram of the automatic shooting control apparatus of the present invention;

fig. 2 is a schematic connection diagram of the automatic shooting control apparatus of the present invention;

FIG. 3 is a schematic diagram of a microprocessor unit according to the present invention;

fig. 4 is a schematic diagram of the power management unit of the present invention;

fig. 5 is a schematic diagram of the working indicator light unit of the present invention;

fig. 6 is a schematic composition diagram of the focusing signal processing unit of the present invention;

FIG. 7 is a schematic diagram of the half-press shutter circuit unit of the present invention;

FIG. 8 is a schematic diagram of the shutter release circuit unit according to the present invention;

FIG. 9 is a flow chart of the present invention;

description of reference numerals: 1. an automatic shooting control device; 2. a microprocessor unit; 201. a high-precision oscillator circuit; 202. a power-on reset circuit; 203. a timer circuit; 204. an undervoltage detection circuit; 3. a power management unit; 301. a power supply charging management chip; 302. a linear power supply chip; 303. a power electronic switch; 4. a work indicator light unit; 401. an LED lamp; 5. a focus signal processing unit; 501. a sound pickup; 502. a mobile phone interference suppression circuit; 503. a filter circuit; 504. an amplifying circuit; 505. a shaping circuit; 6. a half-press shutter line unit; 601. a PMOS tube; 602. a clamping diode; 7. a shutter release circuit unit is fully pressed; 701. NPN type triode.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, according to an embodiment of the present invention, the automatic shooting control apparatus 1 includes a microprocessor unit 2, a power management unit 3, a work light unit 4, a focus-closing signal processing unit 5, a half-press shutter release circuit unit 6, and a full-press shutter release circuit unit 7, and the power management unit 3, the work light unit 4, the focus-closing signal processing unit 5, the half-press shutter release circuit unit 6, and the full-press shutter release circuit unit 7 are all electrically connected to the microprocessor unit 2. The microprocessor unit 2 is a central processing unit of the automatic shooting control device 1, is a control core of program execution and operation, is a final execution unit of information processing and program operation, and respectively controls a power management unit 3, a work indicator lamp unit 4, a focusing signal processing unit 5, a half-pressing shutter circuit unit 6 and a full-pressing shutter circuit unit 7 which are electrically connected with the microprocessor unit to complete different work of each part.

Referring to fig. 2, in one embodiment, the microprocessor unit 2 includes a high-precision oscillator circuit 201, a power-on reset circuit 202, a timer circuit 203, and a brown-out detection circuit 204, and the microprocessor unit 2 functions to control execution and operation of programs. In particular, the high-precision oscillator circuit 201 provides the basic clock signal for the microprocessor unit 2 system, providing the working signal pulses, thereby controlling the rhythm of the program run. The power-on reset circuit 202 is configured to control an open circuit and a short circuit of the capacitor, so as to control a power-on reset operation of the microprocessor unit 2, specifically: at the power-on moment of the microprocessor unit 2, the charging current of the capacitor is the maximum, the capacitor is equivalent to a short circuit, and the RST end is at a high level and is automatically reset; when the voltage at the two ends of the capacitor reaches the power supply voltage, the charging current of the capacitor is zero, the capacitor is equivalent to an open circuit, the RST end is at a low level, and the program runs normally. The timer circuit 203, also called a watchdog circuit, is used to periodically check the internal conditions of the microprocessor unit 2, and to issue a restart signal to the microprocessor unit 2 in case of an error, and this signal instructs to have the highest priority among the interrupts of the program. The undervoltage detection circuit 204 is configured to detect whether the microprocessor unit 2 has a power failure during an operation process, and when the power failure occurs, the protection circuit of the microprocessor unit 2 may actively protect the microprocessor unit 2 in a power failure protection manner. In addition, the microprocessor unit 2 does not need an external crystal oscillator circuit, and the high-precision oscillator circuit 201 is integrated and built in a storage area of the microprocessor unit 2 and provides working signal pulses for the microprocessor unit 2, so that a more stable frequency is obtained.

In summary, the response speed of the digital camera is slow due to manual shutter pressing, so that the problems that a shooting target is missed or a manually shot picture is not clear due to inaccurate focusing and the like easily occur. Therefore in the scheme of the utility model, need not to make the change of any software and hardware to digital camera, only need through adding the signal sensor that focuses on (being used for detecting dynamic object signal) outside digital camera, under this automatic shooting controlling means 1's control, can realize that digital camera accomplishes quick, clear automatic shooting operation through microprocessor unit 2's program algorithm. When a dynamic shot object enters a preset focus range of the digital camera, the shutter of the digital camera is automatically released immediately under the control of the automatic shooting control device 1, so that an instant image of the dynamic shot object is recorded, the rapid and clear automatic shooting operation is completed, and the problem that the digital camera in the prior art cannot automatically shoot, so that the digital camera is difficult to adapt to special use occasions is thoroughly solved.

Referring to fig. 3, in an optional embodiment of the present invention, the power management unit 3 is electrically connected to the microprocessor unit 2, the power management unit 3 includes a power charging management chip 301, a linear power chip 302 and a power electronic switch 303, and the power management unit 3 is used for controlling the safe charging and discharging of the power supply. In this specific scheme, this automatic shooting control device adopts 100mAH lithium cell power supply, and power charge management chip 301 is used for controlling the charging operation of power, ensures that the lithium cell charges safely fast. The linear power supply chip 302 is a low-power-consumption low-voltage-difference linear power supply chip, and can play a good role in limiting current and voltage, and prevent the lithium battery from being damaged due to the fact that the current and voltage exceed a preset value. The power electronic switch 303 is specifically a PMOS transistor, the power electronic switch 303 is used for controlling the on and off operations of charging and discharging of the lithium battery, when the PMOS transistor is turned on, the lithium battery can send the power to other units such as the microprocessor unit 2, and the whole automatic shooting control device 1 enters a working state. In general, the microprocessor unit 2 is electrically connected with the power management unit 3, so as to control the power management unit 3 to realize safe charging and discharging control operation of the lithium battery.

Referring to fig. 4, in another optional embodiment of the present invention, the operation indicator lamp unit 4 is electrically connected to the microprocessor unit 2, the operation indicator lamp unit 4 includes an LED lamp 401, and the LED lamp 401 indicates different operation states of the automatic shooting control apparatus 1 through different stroboflash. In this embodiment, the LED lamp 401 can adjust the flashing frequency thereof according to different operating states of the automatic shooting control device 1, thereby intuitively showing each operating state of the control device to the user. Realize operating condition's instruction function through a plurality of banks among the prior art, and the utility model discloses a LED lamp 401 can realize this function, can reduce the hardware volume, reduces microprocessor unit 2's pin demand. In general, the microprocessor unit 2 is electrically connected to the operation indicator lamp unit 4, so as to control the LED lamp 401 to perform the operation of adjusting the flashing frequency.

Referring to fig. 5, in another optional embodiment of the present invention, the focusing signal processing unit 5 is electrically connected to the microprocessor unit 2, the focusing signal processing unit 5 includes a pickup 501, and the pickup 501 is used to connect with an earphone jack of the camera, so as to collect the focusing signal of the camera. In this specific embodiment, when the automatic shooting control apparatus 1 is used, the pickup 501 is inserted into the camera from the headphone hole of the camera, and the in-focus signal is extracted from the digital camera. In general, the microprocessor unit 2 is electrically connected to the focusing signal processing unit 5, so as to control the sound pickup 501 to extract the focusing signal and filter out external noise.

Further, the focusing signal processing unit 5 further includes a mobile phone interference suppression circuit 502, a filter circuit 503, an amplification circuit 504 and a shaping circuit 505, and the focusing signal processing unit 5 is configured to filter out noise, so as to ensure that the focusing signal acquired by the sound pickup 501 has high precision. Specifically, the focusing signal processing unit 5 formed by combining the mobile phone interference suppression circuit 502, the filter circuit 503, the amplification circuit 504 and the shaping circuit 505 can filter out ripples in the rectified output voltage, so as to play a role in eliminating external noise, ensure that corresponding measures are taken in software and hardware, and ensure that the digital camera is not interfered by external voice in a voice frequency band to cause false triggering.

Referring to fig. 6, in another alternative embodiment of the present invention, the half-press shutter release circuit unit 6 is electrically connected to the microprocessor unit 2, the half-press shutter release circuit unit 6 includes a PMOS transistor 601, and when the shutter of the camera is half-pressed, the PMOS transistor 601 is turned on, and the automatic photographing controlling apparatus 1 enters an operating state. Specifically, when the digital camera half-presses the shutter, the line changes from high 3.3 volts to low <0.3 volts. This circuit is connected to the G pole of the PMOS transistor 601, and when a low level is applied to the G pole, the PMOS transistor 601 is turned on, so that power is supplied to other units such as the microprocessor unit 2, and the entire automatic photographing control apparatus 1 enters a working state. In general, the microprocessor unit 2 is electrically connected to the half-press shutter release circuit unit 6 to control whether the PMOS transistor 601 is turned on, thereby completing the control of the operating state of the automatic photographing controlling apparatus 1.

Further, the half-press shutter release circuit unit 6 further includes a clamp diode 602, and the clamp diode 602 limits a potential voltage in the half-press shutter release circuit unit 6, thereby preventing static electricity from being introduced and damaging the shutter circuit.

Referring to fig. 7, in another alternative embodiment of the present invention, the full-push shutter release circuit unit 7 is electrically connected to the microprocessor unit 2, the full-push shutter release circuit unit 7 includes an electronic shutter release, the electronic shutter release includes an NPN type triode 701, the electronic shutter release is used to connect to the shutter release interface of the camera, and when the focusing signal is detected, the microprocessor unit 2 triggers the electronic shutter release to make the camera enter the shooting state. Specifically, the NPN type triode 701 plays a role of current amplification and electronic switching, and since the electronic shutter release is connected to the shutter release interface of the camera, when a focusing signal is detected, the microprocessor unit 2 triggers the electronic shutter release, and the NPN type triode 701 is turned on, so that the camera enters a shooting state. The microprocessor unit 2 is electrically connected to the full-push shutter release circuit unit 7, thereby controlling the on-off state of the NPN type triode 701 to control the shooting state of the camera.

Referring to fig. 8, in a further aspect of the present invention, the microprocessor unit 2 is a single chip microcomputer, the power management unit 3, the operation indicator light unit 4, the focusing signal processing unit 5, the half-pressing shutter circuit unit 6 and the full-pressing shutter circuit unit 7 are all embedded in the EPROM area of the single chip microcomputer, when the programming program is started, data is written into the EPROM area line by line, and data can still be retained after power failure, so as to perform the functions of program execution and operation, and control each unit to complete different operations.

Referring to fig. 9, combining the above-mentioned embodiments, the work flow of the automatic shooting control apparatus 1 provided by the present invention is specifically as follows:

s101, setting various parameters (such as modes, voice prompt functions, the number of continuous shooting at each time or each second and the like) of the digital camera, putting a sound pickup 501 of the device into the camera from an earphone jack of the digital camera, and connecting an electronic shutter release of the device with a shutter release interface of the digital camera;

s102, aiming the focus of the digital camera at a target or a position where the target may appear, adjusting the camera by adopting an automatic or manual method until the camera emits two focusing prompt tones of beep, which indicate that the camera has adjusted the distance from the target, and then changing AF (automatic focusing) on a lens or a camera body into MF (manual focusing). In addition, different focusing modes can be set according to the size of the shot target;

s103, when a shutter key of the digital camera is half pressed or a power switch of the device is closed, the device enters a working state. The device adopts an interruption mode to detect a focusing signal, and when the focusing signal is detected, the device triggers the electronic shutter release to enable the camera to enter a shooting state, and the shooting time lasts for 1 second. After shooting is finished, waiting for 2 seconds, and entering next circulation again;

s104, when the power switch of the device is switched off or the half-press shutter key of the camera is released, the device loses power and stops working.

Of course, the above is a preferred embodiment of the present invention. It should be noted that, for a person skilled in the art, several modifications and decorations can be made without departing from the basic principle of the present invention, and these modifications and decorations are also considered to be within the scope of the present invention.

Claims (9)

1. An automatic shooting control device is characterized by comprising a microprocessor unit, a power supply management unit, a work indicator lamp unit, a focusing signal processing unit, a half-press shutter circuit unit and a full-press shutter circuit unit;

the microprocessor unit comprises a high-precision oscillator circuit, a power-on reset circuit, a timer circuit and an under-voltage detection circuit, wherein the high-precision oscillator circuit is arranged in the microprocessor unit, and the microprocessor unit is used for controlling execution and operation of programs.

2. The automatic shooting control device of claim 1, wherein the power management unit is electrically connected with the microprocessor unit, the power management unit comprises a power charging management chip, a linear power chip and a power electronic switch, and the power management unit is used for controlling safe charging and discharging of a power supply.

3. The automatic photographing control device of claim 1, wherein the operation indicator lamp unit is electrically connected with the microprocessor unit, the operation indicator lamp unit comprises an LED lamp, and the LED lamp indicates different operation states of the automatic photographing control device through different strobes.

4. The automatic shooting control device of claim 1, wherein the focusing signal processing unit is electrically connected with the microprocessor unit, and the focusing signal processing unit comprises a sound pickup which is used for being connected with an earphone jack of the camera so as to collect a focusing signal of the camera.

5. The automatic shooting control device of claim 4, wherein the focusing signal processing unit further comprises a mobile phone interference suppression circuit, a filter circuit, an amplifying circuit and a shaping circuit, and the focusing signal processing unit is used for filtering noise and ensuring high precision of the focusing signal collected by the sound pickup.

6. The automatic photographing control device of claim 1, wherein the half-press shutter circuit unit is electrically connected to the microprocessor unit, the half-press shutter circuit unit includes a PMOS transistor, and when a shutter of the camera is half-pressed, the PMOS transistor is turned on, and the automatic photographing control device enters an operating state.

7. The automatic photographing control device according to claim 6, wherein the half-press shutter release circuit unit further includes a clamping diode for preventing static electricity from being introduced to damage the shutter circuit.

8. The automatic photographing control device of claim 1, wherein the full-press shutter release circuit unit is electrically connected to the microprocessor unit, the full-press shutter release circuit unit includes an electronic shutter release including an NPN type triode, the electronic shutter release is configured to be connected to a shutter release interface of the camera, and when a focus-on signal is detected, the microprocessor unit triggers the electronic shutter release to enable the camera to enter a photographing state.

9. The automatic shooting control device of any one of claims 1 to 8, wherein the microprocessor unit is a single chip microcomputer, and the power management unit, the work indicator light unit, the focusing signal processing unit, the half-press shutter circuit unit and the full-press shutter circuit unit are all embedded in an EPROM storage area of the single chip microcomputer.

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