CN103581531A - Device for expanding and controlling signals of camera shutter release cable through isolated switches - Google Patents
Device for expanding and controlling signals of camera shutter release cable through isolated switches Download PDFInfo
- Publication number
- CN103581531A CN103581531A CN201210254803.0A CN201210254803A CN103581531A CN 103581531 A CN103581531 A CN 103581531A CN 201210254803 A CN201210254803 A CN 201210254803A CN 103581531 A CN103581531 A CN 103581531A
- Authority
- CN
- China
- Prior art keywords
- control card
- short
- isolated switch
- cable release
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Studio Devices (AREA)
Abstract
Provided is a device for expanding and controlling signals of a camera shutter release cable through isolated switches. An instruction of a manual button or a control device or a computer is used for enabling the camera shutter release cable to produce a single short signal, the single short signal is expanded into multiple short signals which are well isolated and have good stability and enough voltage levels through the isolated switches, and therefore focus and snap of multiple connected cameras are started simultaneously. Thus, the problems that when the single short signal is used for directly driving the connected cameras, signals of the connected cameras have interference in one another, and therefore the voltage levels are not enough and most of the connected cameras cannot be started can be solved. In addition, the multiple short signals can be controlled individually or partially or wholly through the computer, a USB transmission line and a central control unit so that focus and snap of the connected cameras can be achieved rapidly.
Description
Technical field
The invention relates to a kind of by many group isolated switches (isolated switch), for example relay (relay) or optical coupler (photocoupler), the single short-circuit signal (single short signal) of inputting camera shutter line (camera shutter release cable) is extended for to abundant isolation (well isolated), good and accurate (voltage level) the enough many groups short-circuit signals (multiple short signal) in position of stability (stability), start the focusing (focus) of many connected cameras and take pictures (snap) simultaneously, and particularly relevant for a kind of computer that passes through, universal sequence bus (universal serial bus, USB, be designated hereinafter simply as USB) line and central control unit (central processing unit, CPU, be designated hereinafter simply as CPU), to the many groups short-circuit signal through expanding and connected camera, do indivedual, the technology of partly or entirely controlling.More can pass through control card (control board) serial connection mode (connected in parallel), increase the camera quantity controlling.
Background technology
General computer (computer) 1 is controlled the focusing of single camera 3 and takes pictures, conventionally by USB line 2, as shown in Figure 1.As will be controlled the focusing of many cameras and taking pictures, conventionally by USB line 5, via usb hub (USB hub) 6, distribute many USB lines 7,8,9,10 again, to be connected with many cameras 11,12,13,14, and by computer 4 with the identification code (identification, ID) of different cameral representative and the software developer external member that camera manufacturer was provided (software developer ' s kit is called for short SDK), sequentially control respectively each camera, as shown in Figure 2.Yet control mode as shown in Figure 2 also cannot start many connected cameras, to carry out rapid focus and to take pictures simultaneously.
Another control single camera 17 focusing and the mode of taking pictures are passed through camera shutter line 16, as shown in Figure 3.As long as user presses hand push button (manual button) 15, can directly control the focusing of camera 17 and take pictures.As shown in Figure 4, the concurrent that contact A is hand push button (common point), can focus contact A and B short circuit in hand push button as long as user presses hand push button, continues down by 3 short circuits of contact A, B and C can be completed, to take pictures.
Summary of the invention
One of the object of the invention is taken pictures fast for control many cameras by a camera shutter line with a single short-circuit signal simultaneously, and significantly to reduce the required time of compound stereoscopic image, and it is commercial to facilitate stereopsis to be widely used in.Above-mentioned single short-circuit signal is produced by hand push button, another control device or computer instruction.
Another object of the present invention, for a single short-circuit signal being expanded into abundant isolation, the accurate enough many groups short-circuit signals of good stability and position, can control to reach the object that many cameras are focused and taken pictures simultaneously.And, even can carry out single, part or all of control to above-mentioned many group signals and many coupled cameras.
For reaching above-mentioned purpose, the present invention is by the isolated switch of many groups, the single short-circuit signal of one camera shutter line is expanded into abundant isolation, the accurate enough many groups short-circuit signals of good stability and position, control many connected cameras simultaneously, or by computer, USB line and CPU to doing indivedual, part or all of control through the many groups short-circuit signal and the connected camera that expand.Otherwise, as shown in Figure 5, do not adopting relay or optical coupler (as metal-oxide-semiconductor's relay, metal oxide semiconductor relay, be called for short MOS relay) etc. isolated switch come in the situation of isolation signals, if user attempts directly directly to control via camera shutter line 19 with hand push button 18, 20, 21, 22, 23 many cameras 24 that are connected, 25, 26, 27, 28, between each connected camera, can cannot mate because signal interferes with each other caused impedance (impedance), thereby there are part or most camera to start, even cause the damage of the camera that is connected.For instance, when user presses hand switch, while making the short circuit of camera shutter line, its voltage producing may need only lower than 0.7V and can start camera focusing or take pictures.Yet, between the camera that is connected, may interfere with each other and cause the position accurate (voltage level) of part camera cannot be lower than 0.7V because of signal, thereby cannot start its focusing or camera function.Wherein, the short-circuit signal of camera shutter line can or be produced by computer instruction by hand push button, another control device.
For above-mentioned feature and advantage of the present invention can be become apparent, a plurality of embodiment cited below particularly, and coordinate appended graphicly, be described in detail below.
Accompanying drawing explanation
Figure 1 shows that in prior art and by USB, directly control the schematic diagram of single camera with computer.
Figure 2 shows that in prior art and by USB, directly control the schematic diagram of many cameras with computer.
Figure 3 shows that in prior art and directly control with hand push button and camera shutter line the schematic diagram that camera is taken pictures.
Figure 4 shows that the schematic diagram of the short dot of focusing in hand push button and taking pictures in prior art.
Figure 5 shows that in derivative application prior art the hand push button schematic diagram of platform camera control at the most.
Figure 6 shows that a kind of single short-circuit signal that camera shutter line is produced according to one embodiment of the invention is extended for the schematic diagram that many group short-circuit signals are focused simultaneously and taken pictures to control many cameras.
Figure 7 shows that a kind of single short-circuit signal that camera shutter line is produced or computer instruction according to another embodiment of the present invention are extended for the schematic diagram of many group short-circuit signals to control many camera focusings and to take pictures.
Figure 8 shows that a kind of single short-circuit signal camera shutter line being produced via serial connection control card according to one embodiment of the invention is extended for the schematic diagram that many group short-circuit signals are focused simultaneously and taken pictures to control many cameras.
Figure 9 shows that according to a kind of of another embodiment of the present invention, via serial connection control card, computer instruction is extended for to the schematic diagram of many group short-circuit signals to control many camera focusings and to take pictures.
Drawing reference numeral:
1,4,55,157: computer
2,5,7～10,62:USB line
3,11～14,17,24～28,49～53,109～113,127～151,170～194: camera
6,158:USB hub
15,18: hand push button
16,19～23: camera shutter line
29,54,115～120,159～163: control card
30,56,114,164: power supply
31,57,121: single short-circuit signal
32,59: direct voltage input
33,44～48,61,99～103,122～126,152～156: cable release joint
34～43,79～88: isolated switch
58：USB?IC
60,165～169: identification code control element
63: power line
64～67,69～78,89～98,104～108: holding wire
68：CPU
A, B, C: contact
Embodiment
Figure 6 shows that a kind of single short-circuit signal that camera shutter line is produced according to one embodiment of the invention is extended for the schematic diagram that many group short-circuit signals are focused simultaneously and taken pictures to control many cameras, its control card 29(or can be another control device) by power supply 30, powered, and the direct voltage that is converted to 5V is inputted (direct current input, DC input) 32, to supply the power supply of isolated switch (focusing is used) 34,36,38,40,42 and isolated switch (use of taking pictures) 35,37,39,41,43.By hand push button, the single short-circuit signal 31 that another control device or computer instruction produce, can be first via a cable release joint (shutter release jack) 33(focusing and the use of taking pictures) transmit simultaneously and start isolated switch 34～43, to be extended for abundant isolation, the accurate enough many groups short-circuit signals of good stability and position, and then via cable release joint 44, 45, 46, 47, 48 transfer to respectively connected camera 49 by organizing short-circuit signal more, 50, 51, 52 and 53, to start the camera 49 that is connected simultaneously, 50, 51, 52 and 53 actions of focusing or taking pictures.Wherein, the isolated switch of above-mentioned each can be a relay or an optical coupler forms.
Figure 7 shows that a kind of single short-circuit signal that camera shutter line is produced or computer instruction according to another embodiment of the present invention are extended for the schematic diagram of many group short-circuit signals to control many camera focusings and to take pictures, its control card 54(or can be another control device) by power supply 56, powered, and through power line 63, be converted to the direct voltage input 59 of 5V, to supply the power supply of control card 54 interior all parts.The single short-circuit signal 57 being produced by hand push button or another control device, can be first sequentially via holding wire 64, cable release joint 61(focusing and the use of taking pictures) transmit with holding wire 67 simultaneously and start isolated switch 79～88, to be extended for abundant isolation, the accurate enough many groups short-circuit signals of good stability and position, and then sequentially via holding wire 89～98, cable release joint 99～103 transfers to respectively by organizing short-circuit signal the camera 109～113 being connected with holding wire 104～108 more, the action of focusing or taking pictures to control the camera 109～113 that is connected simultaneously, above-mentioned functions is identical with Fig. 6.Or, the computer instruction being sent by computer 55 can be first sequentially via USB line 62, USB integrated circuit (integrated circuit, IC, be designated hereinafter simply as IC) 58 and holding wire 65 to transfer to CPU 68 interior for controlling, then according to computer instruction, transfer at least one control signal by CPU 68 to.Then, control signal sequentially via the specific output point (port) of CPU and holding wire 69～78, transmit and start specific isolated switch 79～88(focus with or the use of taking pictures) at least one of them, to form one or more groups short-circuit signal.Afterwards, one or more groups short-circuit signal sequentially transfers to connected camera 109～113 via holding wire 89～98, cable release joint 99～103 and holding wire 104～108 again, the action of focusing or taking pictures to start indivedual, part or all of connected camera 109～113.Wherein, above-mentioned computer also can be the controller (controller) containing a CPU, and USB IC 58 also can be the control IC such as IEEE 1394 or RS232.
When single short-circuit signal 57 input that hand push button or another control device produce, its effect is identical with Fig. 6 effect, that is to camera 109～113 action of focusing and take pictures simultaneously, but this computer-chronograph 55 does not carry out any control.But during the computer instruction sending when computer 55 input, hand push button or another control device can not inputted single short-circuit signal 57 yet.That is the single short-circuit signal 57 that produces of the computer instruction that sends of computer 55 and hand push button or another control device only can be selected one and carries out.The identification code control element (ID control unit) 60 that is connected in CPU 68 via holding wire 66 is only at serial connection (connected in parallel) a plurality of control card 54(or a plurality of control device) time, use is controlled in the identification of just being undertaken between different control cards by computer 55.Above-mentioned identification code control element 60 can be thumb-acting switch (dip switch) or memory IC.Generally speaking, when hand push button or another control device are inputted single short-circuit signal 57 (this computer-chronograph is failure to actuate), each isolated switch 79～88 can be extended for single short-circuit signal 57 many group short-circuit signals, and starts the action that the camera 109～113 that connects is focused and taken pictures simultaneously.Otherwise, when computer 55 sends computer instruction (now hand push button or another not start of control device), via CPU 68 conversions, differentiate to start which isolated switch 79～88, so that the camera 109～113 connecting can be carried out to indivedual, part or all of control.
Figure 8 shows that a kind of single short-circuit signal camera shutter line being produced via serial connection control card according to one embodiment of the invention is extended for the schematic diagram that many group short-circuit signals are focused simultaneously and taken pictures to control many cameras.In simple terms, Fig. 8 is by the figure multi-disc control card serial connection identical with control card 29 in 6, to increase the camera quantity of connection, and all connected cameras is started to focusing and the action of taking pictures simultaneously.The output cable release joint 122～126 of control card 115 is connected with the input cable release joint 152～156 of control card 116～120 respectively, and control card 115～120 is given in power supply 114 power supplies.When the single short-circuit signal 121 of input, the many groups short-circuit signal that extends to cable release joint 122～126 will be further expanded into more groups of short-circuit signals by control card 116～120, the action of focusing or taking pictures to start camera 127～151 simultaneously.That is when the single short-circuit signal 121 of input, camera 127～151 is all activated simultaneously.
Figure 9 shows that according to a kind of of another embodiment of the present invention, via serial connection control card, computer instruction is extended for to the schematic diagram of many group short-circuit signals to control many camera focusings and to take pictures.Control card 159～163 is identical with the control card 54 shown in Fig. 7, and directly or be connected with control card 159～163 by usb hub 158, and power supply 164 is powered and given computer 157, usb hub 158 and control card 159～163 for computer 157.The identification code of the identification code control element 165 in control card 159 is 0000, the identification code of the identification code control element 166 in control card 160 is 0001, the identification code of the identification code control element 167 in control card 161 is 0010, the identification code of the identification code control element 168 in control card 162 is 0011, and the identification code of the identification code control element 169 in control card 163 is 0100.When computer 157 sends single computer instruction, single computer instruction can transfer to control card 159～163 via usb hub 158.Afterwards, computer 157 directly or by usb hub 158 is connected in series with control card 159～163, and via the identification code 0000 in identification code control element 165～169, 0001, 0010, 0011 and 0100 select and send computer instruction to control card 159～163 at least one of them, so that chosen described control card 159～163 at least the CPU in one of them convert computer instruction at least one control signal, with start isolated switch in chosen described control card 159～163 at least one of them, and then form one or more groups short-circuit signal, via at least at least one of them output of output cable release joint in one of them of chosen described control card 159～163, and then start single, the camera 170～194 being partly or entirely connected with the described control card 159～163 being selected.Different identification codes can be used to the selected control card that has this identification code.For example: the selected identification code 0000 that is positioned at identification code control element 165 of computer 157, control card 159 is controlled, and the single instruction of computer 157 being sent by the CPU in control card 159, convert many group short-circuit signals on the output cable release joint of control card 159, and in order to control the camera 170～174 that is connected.Same as described above, identification code 0001,0010,0011 and 0100 can be controlled respectively control card 160～163 and coupled camera 175～194.And then connected camera 170～194 is carried out to indivedual, part or all of control.In the above-described embodiments, computer 157 is to be connected with control card 159～163 by usb hub 158.Yet in other embodiments, computer 157 also can directly be connected with control card 159～163.
Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention, technical staff in any affiliated technical field, without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is when being as the criterion depending on the claim person of defining.
Claims (9)
1. one by the device of isolated switch expansion camera shutter line signal, it is characterized in that, described device comprises:
One first control card, comprising:
One group of input cable release joint;
Many group output cable release joints;
The isolated switch of many groups, it is connected between described input cable release joint and described output cable release joint; And
One DC power supply input is described isolated switch power supply;
One power supply, provides described DC power supply input; And
One single short-circuit signal, transmits and starts described isolated switch via described input cable release joint, organizing short-circuit signals more, and described, organizes short-circuit signal more and export via described output cable release joint, to start all connected cameras simultaneously to be extended for.
2. the device that expands camera shutter line signal by isolated switch as claimed in claim 1, is characterized in that, described isolated switch is relay or optical coupler.
3. the device that expands camera shutter line signal by isolated switch as claimed in claim 1, is characterized in that, described single short-circuit signal is produced by a hand push button, a control device or a computer instruction.
4. as claimed in claim 1 by the device of isolated switch expansion camera shutter line signal, it is characterized in that, described device more comprises a plurality of the second control cards that are same as described the first control card, wherein said the second control card is serially connected with described the first control card via described output cable release joint, described power supply for described the first control card and described in each the second control card the input of described DC power supply is provided, input described single short-circuit signal and via the described isolated switch of described the second control card, be extended for a plurality of described many group short-circuit signals to described the first control card and via described many group short-circuit signals of the described output cable release joint output of described the first control card, to start all connected cameras simultaneously.
5. one by the device of isolated switch expansion camera shutter line signal, it is characterized in that, described device comprises:
One control card, comprising:
One CPU;
Many group output cable release joints;
The isolated switch of many groups, it is connected between described CPU and described output cable release joint;
One USB IC, it is connected in this CPU; And
One DC power supply input is described isolated switch, described USB IC and described CPU power supply;
One power supply, provides described DC power supply input, and
One computer, by a USB line, connect described USB IC, in order to send a computer instruction to described CPU, wherein said CPU is converted at least one control signal by this computer instruction, with start described isolated switch at least one of them, and then form one or more groups short-circuit signal, and described one or more groups short-circuit signal exports via described output cable release joint, to start single, part or all of connected camera.
6. as claimed in claim 5 by the device of isolated switch expansion camera shutter line signal, it is characterized in that, described control card more comprises one group of input cable release joint, in order to input a single short-circuit signal, and described single short-circuit signal transmits and starts described isolated switch, to be extended for described many group short-circuit signals, via described output cable release joint output, to start whole described connected cameras simultaneously.
7. the device that expands camera shutter line signal by isolated switch as claimed in claim 5, is characterized in that, described computer is the controller that contains another CPU, and described USB IC is that IEEE 1394 controls IC or RS232 controls IC.
8. as claimed in claim 5 by the device of isolated switch expansion camera shutter line signal, it is characterized in that, the quantity of described control card is a plurality of, and control card more comprises an identification code control element and interior identification code thereof described in each, in order to differentiate, by described USB line, to be serially connected with the card of described control card of described computer other.
9. as claimed in claim 8 by the device of isolated switch expansion camera shutter line signal, it is characterized in that, described computer directly or be connected in series with described control card by a usb hub, and via described identification code select and send described computer instruction to described control card at least one of them, so that chosen described control card at least the described CPU in one of them convert described computer instruction to described at least one control signal, with start described isolated switch at least one of them, and then one or more groups short-circuit signal described in forming, and described one or more groups short-circuit signal is via at least at least one of them output of described output cable release joint in one of them of chosen described control card, and then start single, the described camera being partly or entirely connected with the described control card being selected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210254803.0A CN103581531A (en) | 2012-07-20 | 2012-07-20 | Device for expanding and controlling signals of camera shutter release cable through isolated switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210254803.0A CN103581531A (en) | 2012-07-20 | 2012-07-20 | Device for expanding and controlling signals of camera shutter release cable through isolated switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103581531A true CN103581531A (en) | 2014-02-12 |
Family
ID=50052375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210254803.0A Pending CN103581531A (en) | 2012-07-20 | 2012-07-20 | Device for expanding and controlling signals of camera shutter release cable through isolated switches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103581531A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107079109A (en) * | 2016-03-31 | 2017-08-18 | 深圳市大疆灵眸科技有限公司 | Camera shutter control method, apparatus and system |
| CN108718020A (en) * | 2015-06-30 | 2018-10-30 | 宸定科技股份有限公司 | hub |
| CN109413328A (en) * | 2018-10-16 | 2019-03-01 | 长春理工大学 | A kind of array type camera shutter wired controller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2537030Y (en) * | 2002-04-29 | 2003-02-19 | 陈建华 | Synchronous camera controller |
| CN101339350A (en) * | 2008-08-14 | 2009-01-07 | 浙江渤影数码影像科技有限公司 | Shooting equipment and its holographic freezing shooting method |
| CN202276405U (en) * | 2011-10-12 | 2012-06-13 | 陈伟坤 | A device for controlling the work state and the parameter of a camera in a wireless manner |
| WO2012089895A1 (en) * | 2010-12-31 | 2012-07-05 | Multitouch Oy | Rolling shutter compensation in camera array |
-
2012
- 2012-07-20 CN CN201210254803.0A patent/CN103581531A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2537030Y (en) * | 2002-04-29 | 2003-02-19 | 陈建华 | Synchronous camera controller |
| CN101339350A (en) * | 2008-08-14 | 2009-01-07 | 浙江渤影数码影像科技有限公司 | Shooting equipment and its holographic freezing shooting method |
| WO2012089895A1 (en) * | 2010-12-31 | 2012-07-05 | Multitouch Oy | Rolling shutter compensation in camera array |
| CN202276405U (en) * | 2011-10-12 | 2012-06-13 | 陈伟坤 | A device for controlling the work state and the parameter of a camera in a wireless manner |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108718020A (en) * | 2015-06-30 | 2018-10-30 | 宸定科技股份有限公司 | hub |
| CN107079109A (en) * | 2016-03-31 | 2017-08-18 | 深圳市大疆灵眸科技有限公司 | Camera shutter control method, apparatus and system |
| CN107079109B (en) * | 2016-03-31 | 2019-04-16 | 深圳市大疆灵眸科技有限公司 | Camera shutter control method, apparatus and system |
| CN109873958A (en) * | 2016-03-31 | 2019-06-11 | 深圳市大疆灵眸科技有限公司 | Camera shutter control method, apparatus and system |
| CN109873958B (en) * | 2016-03-31 | 2021-08-31 | 深圳市大疆灵眸科技有限公司 | Camera shutter control method, device and system |
| CN109413328A (en) * | 2018-10-16 | 2019-03-01 | 长春理工大学 | A kind of array type camera shutter wired controller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7761647B2 (en) | Storage device with automatic interface-switching function | |
| JP5942042B2 (en) | Charger, charging terminal, charging system, charging control method, program, and recording medium thereof | |
| US8156349B2 (en) | Electronic device and interface system | |
| US10574073B2 (en) | Electronic device and method for controlling power supply | |
| US10468896B2 (en) | Intelligent switch system and control method | |
| WO2016169140A1 (en) | Circuit, method and apparatus for usb interface sharing | |
| CN102692986B (en) | Electronic appliance, connecting appliance, electronic appliance system and method | |
| CN104917016A (en) | Charging type concentrator | |
| JP2016218972A (en) | USB hub device | |
| CN108701106A (en) | A kind of data transmission method and equipment | |
| US11979695B2 (en) | SPI-based data transmission system | |
| CN103581531A (en) | Device for expanding and controlling signals of camera shutter release cable through isolated switches | |
| CN107004105B (en) | A kind of release identification circuit and terminal | |
| CN104270568A (en) | Synchronous shooting control device of camera | |
| US20140029930A1 (en) | Device for extending and controlling signals of a camera shutter release cable through isolated switches | |
| CN108697046B (en) | Method for operating an agricultural system having a tractor and a tool, agricultural system and computer program product | |
| KR101331025B1 (en) | Device for extending and controlling signals of a camera shutter release cable through isolated switches | |
| CN108055212B (en) | Method and device compatible with PSE chip | |
| US20070067547A1 (en) | USB device | |
| US20210195104A1 (en) | Electronic apparatus and accessory system | |
| CN108701104B (en) | Data transmission system, projector, and data transmission method | |
| US20140152102A1 (en) | Switching device | |
| CN204389987U (en) | A kind of electric-control system of sewing device and sewing device | |
| CN109240262B (en) | Bus circuit and intelligent goods shelf system | |
| JP2014041258A (en) | Device for expanding and controlling camera shutter release cable signal by isolation switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |