CN217216733U - Camera switching circuit and camera system - Google Patents
Camera switching circuit and camera system Download PDFInfo
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- CN217216733U CN217216733U CN202123359239.2U CN202123359239U CN217216733U CN 217216733 U CN217216733 U CN 217216733U CN 202123359239 U CN202123359239 U CN 202123359239U CN 217216733 U CN217216733 U CN 217216733U
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Abstract
The application discloses a camera switching circuit and a camera system, wherein the camera switching circuit comprises a power supply module, a timing module, at least two camera modules and at least two switch modules, wherein the at least two camera modules are electrically connected with the at least two switch modules in a one-to-one correspondence manner; the at least two switch modules are electrically connected with the power supply module; the timing module is respectively electrically connected with the at least two switch modules and is used for outputting switch signals to the at least two switch modules at regular time according to a preset time threshold value so as to enable the switch modules to drive the corresponding camera modules to be connected or disconnected with the power supply module. When the camera module is communicated with the power supply module, the camera module can normally run; when the camera module is disconnected with the power module, the camera module cannot normally operate. The switching of different camera modules can be performed normally according to the preset time threshold without manual switching, and user experience can be improved.
Description
Technical Field
The application relates to the technical field of cameras, in particular to a camera switching circuit and a camera system.
Background
In a multi-person multi-party remote video conference, the participants in the conference may be in different positions of the conference room, and if a single camera is selected, images of all the participants cannot be acquired. It is therefore often necessary to use a plurality of cameras, and in some conference situations it is necessary to switch cameras manually, for example when a new speaker is replaced, so that the cameras can capture the new speaker. However, manually switching the cameras is troublesome, resulting in poor user experience.
SUMMERY OF THE UTILITY MODEL
The present application is directed to solving at least one of the problems in the prior art. Therefore, the camera switching circuit and the camera system can automatically switch the camera at regular time without manual switching.
An embodiment of a first aspect of the present application provides a camera switching circuit, including:
a power supply module;
at least two camera modules;
the at least two camera modules are electrically connected with the at least two switch modules in a one-to-one correspondence manner; the at least two switch modules are electrically connected with the power supply module;
the timing module is electrically connected with the at least two switch modules respectively, and the timing module is used for outputting switch signals to the at least two switch modules at regular time according to a preset time threshold value so as to enable the switch modules to drive the corresponding camera modules to be connected or disconnected with the power supply module.
According to the camera switching circuit of the embodiment of the first aspect of the present application, at least the following advantages are provided: the camera switching circuit comprises a power supply module, a timing module, at least two camera modules and at least two switch modules, wherein the at least two camera modules are electrically connected with the at least two switch modules in a one-to-one correspondence manner; the at least two switch modules are electrically connected with the power supply module; the timing module is respectively electrically connected with the at least two switch modules and is used for outputting switch signals to the at least two switch modules at regular time according to a preset time threshold value so as to enable the switch modules to drive the corresponding camera modules to be connected or disconnected with the power supply module. When the camera module is communicated with the power supply module, the camera module can normally run; when the camera module is disconnected with the power module, the camera module cannot normally operate. According to the embodiment of the application, the timing module outputs the switch signals to the at least two switch modules at regular time according to the preset time threshold value, so that the switch modules drive the corresponding camera modules to be switched on or off with the power module, different camera modules can be switched to normally work according to the preset time threshold value, manual switching is not needed, and user experience can be improved.
According to some embodiments of the first aspect of the present application, the switch module comprises a switch tube, a first end of the switch tube is electrically connected to the timing module, a second end of the switch tube is electrically connected to the power module, and a third end of the switch tube is electrically connected to the corresponding camera module; the first end is used for enabling the second end and the third end to be connected or disconnected according to a switching signal.
According to some embodiments of the first aspect of the present application, the first terminal is a gate of the switching tube; the second end is a drain electrode of the switch tube; and the third end is the source electrode of the switching tube.
According to some embodiments of the first aspect of the present application, further comprising a number of inverting modules is 2; the number of the switch modules is 2, the switch modules are respectively a first switch module and a second switch module, and a first end of a switch tube of the first switch module is electrically connected with a first pin of the timing module; the first end of a switching tube of the second switching module is connected with the output end of the inverting module; the input end of the phase inversion module is electrically connected with the first pin.
According to some embodiments of the first aspect of the present application, the input of the inverting module is further electrically connected to the power module; the first end of the switch tube of the first switch module is grounded.
According to some embodiments of the first aspect of the present application, the inverting module comprises a transistor, a gate of the transistor serving as an input of the inverting module; the drain electrode of the triode is used as the output end of the inverting module; the drain electrode of the triode is also connected with the power supply module; and the source electrode of the triode is grounded.
According to some embodiments of the first aspect of the present application, the timing module is provided with a plurality of pins, and the plurality of pins are electrically connected with the at least two switch modules in a one-to-one correspondence.
According to some embodiments of the first aspect of the present application, the power module includes a USB power source and a voltage stabilizing unit, and the at least two switch modules are electrically connected to the USB power source through the voltage stabilizing unit, respectively.
According to some embodiments of the first aspect of the present application, the switching tube is of the MDU1516 type, and the timing module comprises a chip of the SC92F7490 type.
An embodiment of a second aspect of the present application provides a camera system, including the camera switching circuit according to the embodiment of the first aspect of the present application.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
Additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a block diagram of a camera switching circuit according to some embodiments of the first aspect of the present application;
fig. 2 is a block diagram of a camera switching circuit according to some embodiments of the first aspect of the present application;
FIG. 3 is a schematic circuit diagram of a USB power supply according to some embodiments of the present application;
FIG. 4 is a circuit diagram of a voltage regulator unit according to some embodiments of the present application;
FIG. 5 is a schematic circuit diagram of a portion of a camera switching circuit according to some embodiments of the present application;
FIG. 6 is a schematic circuit diagram of two camera modules according to some embodiments of the present application
The reference numbers are as follows:
a timing module 100;
a switch module 200;
a camera module 300;
a power supply module 400; a USB power source 410; a voltage stabilization unit 420;
an inversion module 500;
a first switch module 600;
a second switch module 700.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.
In the description of the present application, if there are first and second descriptions for distinguishing technical features, the description should not be interpreted as indicating or implying any relative importance or implying any number of indicated technical features or implying any precedence over indicated by the indicated technical features.
In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.
In a first aspect, referring to fig. 1, the embodiment of the present application provides a camera switching circuit, which includes a power module 400, a timing module 100, at least two camera modules 300, and at least two switch modules 200, where the at least two camera modules 300 are electrically connected to the at least two switch modules 200 in a one-to-one correspondence; at least two switch modules 200 are electrically connected to the power module 400; the timing module 100 is electrically connected to the at least two switch modules 200, respectively, and the timing module 100 is configured to output a switching signal to the at least two switch modules 200 at regular time according to a preset time threshold, so that the switch modules 200 drive the corresponding camera modules 300 to be connected to or disconnected from the power module 400. When the camera module 300 is conducted with the power module 400, the power module 400 supplies power to the camera module 300, and the camera module 300 can normally operate; when the camera module 300 is disconnected from the power module 400, the power module 400 cannot supply power to the camera module 300, and the camera module 300 cannot operate normally. According to the embodiment of the application, the timing module 100 outputs the switching signals to the at least two switching modules 200 at regular time according to the preset time threshold value, so that the switching modules 200 drive the corresponding camera modules 300 and the power supply module 400 to be switched on or off, different camera modules 300 can be switched to normally work according to the preset time threshold value, manual switching is not needed, and user experience can be improved.
Referring to fig. 1, fig. 1 shows three switch modules 200 and three camera modules 300, the switch modules 200 are connected to the camera modules 300 in a one-to-one correspondence manner, the three camera modules 300 are electrically connected to a power module 400 through the corresponding switch modules 200, the three switch modules 200 are electrically connected to a timing module 100, and the timing module 100 is electrically connected to the power module 400, so that the power module 400 supplies power to the timing module 100. The timing module 100 is configured to output switching signals to the three switching modules 200 at regular time according to a preset time threshold, and the switching modules 200 drive the corresponding camera modules 300 and the power supply module 400 to be turned on or off according to the switching signals, so that different camera modules 300 can be switched to normally operate according to the preset time threshold. The switch signal can be a high-level signal or a low-level signal; for example, when the switching signal is a high level signal, the switching module 200 drives the corresponding camera module 300 to be conducted with the power module 400; when the switching signal is at a low level, the switching module 200 drives the corresponding camera module 300 to be disconnected from the power module 400.
It is understood that the timing module 100 may periodically output the switching signal to each of the switch modules 200 respectively according to a preset time threshold; for example, when the preset time threshold is two minutes, the timing module 100 continuously outputs a high level signal first, so that the switch module 200 drives the corresponding camera module 300 to be kept in conduction with the power module 400, and continuously outputs a low level signal after two minutes, so that the switch module 200 drives the corresponding camera module 300 to be kept in disconnection with the power module 400, and thus, the switching signals are inverted every two minutes. It should be noted that the preset time threshold is not specifically limited in the present application.
It is understood that the timing module 100 is provided with a plurality of pins electrically connected to at least two switch modules 200 in a one-to-one correspondence. In this way, each pin of the timing module 100 can output different switching signals, and can also output the same switching signal.
It should be noted that the three switch modules 200 and the three camera modules 300 shown in fig. 1 are only an example of the present application and are not to be construed as limiting the present application, in the present application, the number of the switch modules 200 may also be 2, 4, 5 or more, and the number of the camera modules 300 may be 2, 4, 5 or more, which is not limited in the present application.
It is to be understood that, referring to fig. 1, fig. 1 is a block diagram of a camera switching circuit according to some embodiments of the first aspect of the present application; the power module 400 includes a USB power source 410 and a voltage regulation unit 420, and at least two switch modules 200 are electrically connected to the USB power source 410 through the voltage regulation unit 420, respectively. The voltage stabilizing unit 420 can stabilize the output voltage of the USB power source 410 and use the output voltage to supply power to the switching module 200, the camera module 300, and the timing module 100.
It is understood that the switch module 200 includes a switch tube, a first end of the switch tube is electrically connected to the timing module 100, a second end of the switch tube is electrically connected to the power module 400, and a third end of the switch tube is electrically connected to the corresponding camera module 300; the first terminal is used for enabling the second terminal and the third terminal to be connected or disconnected according to the switching signal. The first end is a grid electrode of the switching tube; the second end is the drain electrode of the switch tube; the third end is the source electrode of the switch tube. The gate of the switching tube is electrically connected to the timing module 100, the timing module 100 outputs a switching signal to the gate of the switching tube, and the switching tube switches the second terminal and the third terminal on or off according to the switching signal. For example, when the timing module 100 outputs a high-level signal to the gate of the switching tube, the drain and the source of the switching tube are conducted, so that the corresponding camera module 300 is conducted with the power module 400, and the power module 400 can supply power to the corresponding camera module 300, so that the corresponding camera module 300 can operate normally; when the timing module 100 outputs a low level signal to the gate of the switching tube, the drain and the source of the switching tube are disconnected, so that the corresponding camera module 300 and the power module 400 are disconnected, and the corresponding camera cannot operate normally.
It is to be understood that, referring to fig. 2, fig. 2 is a block diagram of a camera switching circuit according to some embodiments of the first aspect of the present application; in some embodiments, the camera switching circuit further includes an inverting module 500, the number of camera modules 300 is 2; the number of the switch modules 200 is 2, and the switch modules are respectively a first switch module 600 and a second switch module 700, and a first end of a switch tube of the first switch module 600 is electrically connected with a first pin of the timing module 100; the first end of the switching tube of the second switching module 700 is connected with the output end of the inverting module 500; the input of the inverter module 500 is electrically connected to the first pin. The inverting module 500 is used for inverting the switching signal outputted from the first pin and transmitting the inverted switching signal to the first end of the switching tube of the second switching module 700. For example, when the timing module 100 keeps the continuously output switching signal at the high level through the first pin, the timing module 100 keeps outputting the low level through the first pin after 2 minutes, and the timing module 100 inverts the switching signal every two minutes. During the period that the switching signal is a high level signal, the gate of the first switching module 600 is at a high level, and the gate of the second switching module 700 is at a low level, then the drain and the source of the switching tube of the first switching module 600 are conducted, so that the camera module 300 corresponding to the first switching module 600 is conducted with the power module 400, the camera module 300 corresponding to the first switching module 600 operates normally, the drain and the source of the switching tube of the second switching module 700 are disconnected, the camera module 300 corresponding to the second switching module 700 is disconnected with the power module 400, and the camera module 300 corresponding to the second switching module 700 cannot operate normally; during the period that the switching signal is at the low level, the gate of the first switch module 600 is at the low level, the gate of the second switch module 700 is at the high level, the drain and the source of the switching tube of the first switch module 600 are disconnected, the camera module 300 corresponding to the first switch module 600 is disconnected from the power module 400, the camera module 300 corresponding to the first switch module 600 cannot normally operate, and the gate of the switching tube of the second switch module 700 is at the high level, the drain and the source of the switching tube of the second switch module 700 are connected, the camera module 300 corresponding to the second switch module 700 is directly connected to the power module 400, and the camera module 300 corresponding to the second switch module 700 can normally operate.
It is understood that the input terminal of the inverter module 500 is also electrically connected to the power module 400; when the first pin does not output the switching signal, the input terminal of the inverting module 500 is at a high level, and the gate of the switching tube of the second switching module 700 is at a low level, so that the camera module 300 corresponding to the second switching module 700 cannot normally operate. The first end of the switch tube of the first switch module 600 is also grounded, so that when the first pin does not output a switch signal, the gate of the switch tube of the first switch module 600 is at a low level, and the camera module 300 corresponding to the first switch module 600 cannot normally operate.
It is understood that the inverting module 500 includes a transistor, and a gate of the transistor is used as an input terminal of the inverting module 500; the drain of the triode is used as the output end of the inverting module 500; the drain of the triode is also connected with the power module 400; the source of the triode is grounded.
It is understood that the inverting module 500 may also be a not gate.
It is to be understood that, referring to fig. 3 to 6, fig. 3 to 6 show specific circuit diagrams of the camera switching circuit according to some embodiments of the first aspect of the present application. Fig. 3 is a circuit diagram of the USB power source 410 according to some embodiments of the present application, and the USB20_3 is a USB power source signal input port in fig. 3.
Fig. 4 is a circuit diagram of the voltage regulator block 420 according to some embodiments of the present invention, and the voltage regulator block 420 may be a chip of model AP 1621A. Fig. 5 is a partial circuit schematic diagram of a camera switching circuit according to some embodiments of the present application, in which the timing module 100 includes a chip with a model SC92F7490, the transistor of the inverter module 500 has a model 2N7002, and the switching tube of the switching module 200 has a model MDU 1516. Fig. 6 is a circuit diagram of two camera modules 300 according to some embodiments of the present application, where the camera modules 300 are USB cameras, and the two camera modules 300 are USB cameras UP and USB cameras DOWN, respectively. JTAG in FIG. 5 is a program burning interface.
Referring to fig. 5 and 6, when the resistor R10 is not loaded, that is, when the resistor R10 is open-circuited, the timer module 100 outputs a switching signal to the gate of the switching tube PQ55 through the pin 6 of the chip SC92F7490, so as to control the conduction or disconnection between the drain and the source of the switching tube PQ 55; and the drain of the switch tube PQ55 is connected to +5VCAM output by the voltage stabilizing unit 420, the source of the switch tube PQ55 is connected to the power input VCC2 of the USB camera DOWN, and when the switch signal output by the pin 6 is at a high level, the drain and the source of the switch tube PQ55 are connected, that is, the power input VCC2 of the USB camera DOWN is connected to +5VCAM output by the voltage stabilizing unit 420, so as to supply power to the USB camera DOWN, and the USB camera DOWN can normally operate. When the switching signal output by the pin 6 of the chip SC92F7490 is at a low level, the drain and the source of the switching tube PQ55 are disconnected, that is, the power input terminal VCC2 of the USB camera DOWN is disconnected from the +5VCAM output by the voltage stabilizing unit 420, and power cannot be supplied to the USB camera DOWN, so that the USB camera DOWN cannot normally operate.
When the resistor R10 is not loaded, that is, when the resistor R10 is open, the timer module 100 sends a switching signal to the transistor PQ54 through the pin 5 of the chip SC92F7490, and the transistor PQ54 inverts the switching signal and transmits the inverted switching signal to the gate of the switching tube PQ14, so that the drain and the source of the switching tube PQ14 are turned on or off. The drain of the switching tube PQ14 is connected to +5VCAM output by the voltage stabilizing unit 420, the source of the switching tube PQ14 is connected to the power input terminal VCC1 of the USB camera UP, when the switching signal output by the pin 5 of the chip SC92F7490 is at a low level, the drain and the source of the transistor PQ54 are disconnected, the drain of the transistor PQ54 is connected to the gate of the switching tube PQ14 and the USB power source 410, the gate of the switching tube PQ14 is at a high level, and the drain and the source of the switching tube PQ14 are connected, that is, the power input terminal VCC1 of the USB camera UP is connected to +5VCAM output by the voltage stabilizing unit 420, so that the USB camera UP is powered normally. When the switching signal output by the pin 5 of the chip SC92F7490 is at a high level, the drain and the source of the transistor PQ54 are turned on, the source of the transistor PQ54 is grounded, and the gate of the switching tube PQ14 is connected, so that the gate of the switching tube PQ14 is at a low level, and at this time, the drain and the source of the switching tube PQ14 are disconnected, that is, the power input terminal VCC1 of the USB camera UP is not connected to the +5VCAM output by the voltage stabilizing unit 420, and the USB camera UP cannot be powered, so that the USB camera UP cannot operate.
Referring to fig. 5 and 6, when resistor R10 is loaded, the gate of switching tube PQ55 is connected to pin 5 of chip SC92F7490, and at this time, a switching signal can be transmitted to the gate of switching tube PQ55 and the gate of transistor PQ54 through pin 5 of chip SC92F 7490. When the switching signal output by the pin 5 of the chip SC92F7490 is at a high level, the USB camera UP cannot operate, and the USB camera DOWN normally operates; when the switching signal output by the pin 5 of the chip SC92F7490 is at a low level, the USB camera UP normally operates, and the USB camera DOWN cannot operate.
It can be understood that, referring to fig. 5 and 6, the gate of the transistor PQ54 is also connected to +5VCAM through the resistor RU63, so that when the pin 5 of the chip SC92F7490 does not output a switching signal, the gate of the transistor PQ54 is at a high level, and the USB camera UP cannot operate; the gate of the switch PQ55 is grounded, so that when neither pin 5 nor pin 6 of the chip SC92F7490 outputs a switching signal, the gate of the switch PQ55 is at a low level, and the USB camera DOWN cannot operate.
An embodiment of a second aspect of the present application provides a camera system, including a camera switching circuit as in the embodiment of the first aspect of the present application. Because the camera system includes the camera switching circuit according to the embodiment of the first aspect of the present application, the camera system according to the embodiment of the present application can output the switching signal to the at least two switch modules 200 at regular time through the timing module 100 according to the preset time threshold, so that the switch modules 200 drive the corresponding camera modules 300 and the power supply module 400 to be turned on or off, so that different camera modules 300 can be switched to work normally according to the preset time threshold, manual switching is not needed, and user experience can be improved.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.
Claims (10)
1. A camera switching circuit, comprising:
a power supply module;
at least two camera modules;
the at least two camera modules are electrically connected with the at least two switch modules in a one-to-one correspondence manner; the at least two switch modules are electrically connected with the power supply module;
the timing module is electrically connected with the at least two switch modules respectively, and the timing module is used for outputting switch signals to the at least two switch modules at regular time according to a preset time threshold value so as to enable the switch modules to drive the corresponding camera modules to be connected or disconnected with the power supply module.
2. The camera switching circuit according to claim 1, wherein the switch module comprises a switch tube, a first end of the switch tube is electrically connected to the timing module, a second end of the switch tube is electrically connected to the power module, and a third end of the switch tube is electrically connected to the corresponding camera module; the first end is used for enabling the second end and the third end to be connected or disconnected according to a switching signal.
3. The camera switching circuit according to claim 2, wherein the first terminal is a gate of the switching tube; the second end is a drain electrode of the switch tube; and the third end is the source electrode of the switching tube.
4. The camera switching circuit according to claim 2, further comprising inverting modules, the number of camera modules being 2; the number of the switch modules is 2, the switch modules are respectively a first switch module and a second switch module, and a first end of a switch tube of the first switch module is electrically connected with a first pin of the timing module; the first end of a switching tube of the second switching module is connected with the output end of the inverting module; the input end of the phase inversion module is electrically connected with the first pin.
5. The camera switching circuit according to claim 4, wherein the input terminal of the inverting module is further electrically connected to the power module; the first end of the switch tube of the first switch module is grounded.
6. The camera switching circuit according to claim 5, wherein the inverting module comprises a transistor, a gate of the transistor being an input of the inverting module; the drain electrode of the triode is used as the output end of the inverting module; the drain electrode of the triode is also connected with the power supply module; and the source electrode of the triode is grounded.
7. The camera switching circuit according to claim 1, wherein the timing module is provided with a plurality of pins, and the plurality of pins are electrically connected with the at least two switch modules in a one-to-one correspondence.
8. The camera switching circuit according to claim 1, wherein the power module comprises a USB power source and a voltage stabilizing unit, and the at least two switch modules are electrically connected to the USB power source through the voltage stabilizing unit, respectively.
9. The camera switching circuit according to claim 2, wherein the switching tube is of the type MDU1516, and the timing module comprises a chip of the type SC92F 7490.
10. A camera system comprising the camera switching circuit of any one of claims 1 to 9.
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| CN202123359239.2U CN217216733U (en) | 2021-12-28 | 2021-12-28 | Camera switching circuit and camera system |
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| CN202123359239.2U CN217216733U (en) | 2021-12-28 | 2021-12-28 | Camera switching circuit and camera system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116645763A (en) * | 2023-05-29 | 2023-08-25 | 深圳市泰比特科技有限公司 | Method for standardizing riding of shared electric bicycle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116645763A (en) * | 2023-05-29 | 2023-08-25 | 深圳市泰比特科技有限公司 | Method for standardizing riding of shared electric bicycle |
| CN116645763B (en) * | 2023-05-29 | 2024-05-10 | 深圳市泰比特科技有限公司 | Method for standardizing riding of shared electric bicycle |
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