CN216904996U - Time code synchronization device and system - Google Patents
Time code synchronization device and system Download PDFInfo
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- CN216904996U CN216904996U CN202220698719.7U CN202220698719U CN216904996U CN 216904996 U CN216904996 U CN 216904996U CN 202220698719 U CN202220698719 U CN 202220698719U CN 216904996 U CN216904996 U CN 216904996U
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Abstract
The utility model discloses a time code synchronization device and a system, wherein the device comprises: the system comprises a first transmission module communicated with the terminal equipment, a second transmission module communicated with other time coders, and a main control module respectively connected with the first transmission module and the second transmission module; the main control module receives a configuration signal of a main time code device configured by the main control module, and a time code signal of the terminal equipment is transmitted between the first transmission module and the terminal equipment so as to synchronize the time code signals of the main time code device and the terminal equipment; the second transmission module and other second transmission modules configured to transmit the time code signal of the terminal equipment between the slave time coders so as to synchronize the time code signals of the slave time coders and the terminal equipment; the second transmission module and other second transmission modules configured as slave time coders transmit time code signals generated by the master control module of the master time coder to synchronize the time code signals of the master and slave time coders. The utility model solves the technical problem of larger error when time codes are synchronized among equipment.
Description
Technical Field
The present invention relates to the field of time code technology, and in particular, to a time code synchronization apparatus and system.
Background
Time codes are a method of accurately marking video frames in a shot, which works by calculating the exact number of frames from the first to the last video. In counting frames, the time code assigns a unique identifier to each frame, but not a consecutive integer, and each frame has a tag, which comprises: minute, second, frame value.
Currently, in the editing and production of audio programs, when more than two devices work together and have precise requirements on time, the devices need to be synchronized. In the prior art, each device is usually required to be manually operated to set the same time code information, so that a large error exists, the workload is large, and the operation efficiency of a user is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems of large error and low efficiency when time code synchronization is realized among a plurality of devices in the prior art.
In a first aspect, an embodiment of the present invention provides a time code synchronization apparatus, including:
the first transmission module is used for communicating with the terminal equipment;
the second transmission module is used for communicating with other time coders; and
the main control module is electrically connected with the first transmission module and the second transmission module;
the main control module receives a configuration signal configured as a main time code device, and the time code signal of the terminal equipment is transmitted between the first transmission module and the terminal equipment so as to synchronize the time code signal of the main time code device and the time code signal of the terminal equipment;
the second transmission module and other second transmission modules configured to transmit the time code signal of the terminal equipment between the slave time code device and the terminal equipment so as to synchronize the time code signal of the slave time code device and the time code signal of the terminal equipment;
or, the second transmission module and other second transmission modules configured as the slave time code devices transmit the time code signals generated by the master control module of the master time code device, so as to synchronize the time code signals of the master time code device and the time code signals of the slave time code devices.
In the time code synchronization device, the first transmission module is a bluetooth module, the second transmission module is a 2.4G module, the bluetooth module communicates with the terminal device by using a bluetooth protocol, and the 2.4G module realizes communication between a master time code device and a slave time code device by using a non-bluetooth protocol.
Wherein, in said time code synchronization device, said other is configured not to transmit said time code signal from between the first transmission modules of the time code encoder.
The time code synchronization equipment further comprises a time code switching module and an amplitude adjusting module, wherein the amplitude adjusting module is electrically connected with the time code switching module and the main control module respectively; if a first operation input is received, the main control module generates a time code signal according to the first operation input and inputs the time code signal into the amplitude adjusting module for amplitude adjustment, and the time code signal after amplitude adjustment is transmitted to a port through the time code switching module; and if a second operation input is received, the main control module configures the port to receive an external time code signal according to the second operation input, and the external time code signal is input to the main control module by the time code switching module.
The time code synchronization device comprises a time code switching module, a port and an amplitude adjusting module, wherein the time code switching module comprises a switch and a time code constant circuit, the switch is respectively connected with the port and the amplitude adjusting module, the time code constant circuit is electrically connected with a main control module and between the switches, the main control module is used for controlling the switch to be switched on so as to configure the port to input an external time code signal or configure the port to output the time code signal after the amplitude is adjusted, the amplitude of the external time code signal is different from the amplitude of the time code signal after the amplitude is adjusted, and the time code constant circuit is used for receiving the external time code signal and outputting the constant time code signal to be sent to the main control module.
The time code synchronization device comprises a time code switching module, an amplitude adjusting module, a master control module and a potentiometer, wherein the amplitude adjusting module is internally provided with the potentiometer, the potentiometer is electrically connected with the time code switching module and the master control module respectively, and the master control module controls the potentiometer to adjust the amplitude of the time code signal.
The time code synchronization device comprises an amplitude adjusting module, a time code switching module, a master control module and a time code synchronization device, wherein the amplitude adjusting module is also internally provided with a buffer, the buffer is respectively and electrically connected with the time code switching module and the master control module, and the master control module controls the buffer to buffer the time code signals before amplitude adjustment.
The time code synchronization device comprises an amplitude adjusting module, a time code switching module, a main control module and a time code synchronization module, wherein the amplitude adjusting module is also internally provided with a follower, the followers are respectively and electrically connected with the time code switching module and the main control module, and the main control module controls the followers to stably input time code signals after amplitude adjustment into the time code switching module.
The time code synchronization equipment further comprises an audio acquisition module, wherein the audio acquisition module is electrically connected with the main control module and is used for acquiring audio signals; and if a third operation input is received, the main control module controls the audio signal of the audio acquisition module to be transmitted to a port according to the third operation input.
In a second aspect, an embodiment of the present invention further provides a time code synchronization system, which includes: the master-slave devices where the target master node and the target slave node are located are the time code synchronization devices of the first aspect.
The time code synchronization device and the time code synchronization system provided by the embodiment of the utility model are characterized in that a first transmission module and a second transmission module which are respectively electrically connected with a main control module are arranged in the device, the main control module receives a configuration signal of a main time code device configured by a local machine, and a time code signal of a terminal device is transmitted between the first transmission module and the terminal device so as to realize the time code signal synchronization between the main time code device and the terminal device; the second transmission module and other second transmission modules configured to transmit the time code signals of the terminal equipment between the slave time code devices so as to realize the time code signal synchronization between the slave time code devices and the terminal equipment; the second transmission module and other second transmission modules configured to transmit the time code signals generated by the master control module of the master time code device between the slave time code devices so as to synchronize the time code signals between the master time code device and the slave time code devices. The utility model not only solves the technical problems of low efficiency due to the need of manual operation on each device, but also solves the technical problem of large error when time codes are synchronized among devices.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a simplified schematic diagram of a time code synchronization apparatus according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a plurality of time code synchronization apparatuses according to an embodiment of the present invention for implementing time code signal synchronization;
fig. 3 is a schematic diagram of an embodiment of a first transmission module according to the present invention;
fig. 4 is a schematic diagram of an embodiment of a second transmission module according to the present invention;
fig. 5 is a schematic diagram of an embodiment of a time code switching module according to the present invention;
FIG. 6 is a schematic diagram of an embodiment of an amplitude adjustment module according to an embodiment of the utility model;
fig. 7 is a schematic diagram of an embodiment of an audio acquisition module according to an embodiment of the present invention;
fig. 8 is a schematic diagram of an embodiment of an operating mode switching module according to an embodiment of the present invention;
fig. 9 is a schematic diagram of an embodiment of a master control module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
The embodiment of the utility model provides time code synchronization equipment and a time code synchronization system. The following are detailed below.
Referring to fig. 1, fig. 1 is a simplified schematic diagram of a time code synchronization apparatus according to an embodiment of the present invention. In fig. 1 and 2, the time code synchronization apparatus may include:
a first transmission module 10, configured to communicate with a terminal device;
a second transmission module 20 for communicating with other coders; and
the main control module 30 is electrically connected to the first transmission module 10 and the second transmission module 20.
As shown in fig. 2, the main control module 30 of the device 1 receives a configuration signal configured as a main time code device, and the first transmission module 10 of the device 1 transmits a time code signal of a terminal device between the terminal device and the terminal device to synchronize the time code signal of the main time code device and the time code signal of the terminal device;
the second transmission module 20 of the device 1 and the other second transmission modules 20 configured to transmit the time code signal of the terminal device between the slave time code device and the other second transmission modules to synchronize the time code signal of the slave time code device and the time code signal of the terminal device;
alternatively, the time code signals generated by the master control module 30 of the master time coder are transmitted between the second transmission module 20 of the device 1 and the other second transmission modules 20 configured as slave time coders, so as to synchronize the time code signals of the master time coders and the time code signals of the slave time coders.
The time code synchronization device provided by the embodiment of the utility model, by arranging the first transmission module 10 and the second transmission module 20 which are respectively electrically connected with the main control module 30 in the device, after the main control module 30 receives the configuration signal of the main time code device configured by the main control module 30, the time code signal of the terminal device is transmitted between the first transmission module 10 and the terminal device to realize the time code signal synchronization between the main time code device and the terminal device, the time code signal of the terminal device is transmitted between the second transmission module 20 and the other second transmission modules 20 configured as the slave time code devices to realize the time code signal synchronization between the slave time code devices, the time code signal generated by the main control module 30 of the main time code device is transmitted between the second transmission module 20 and the other second transmission modules 20 configured as the slave time code devices to realize the time code signal synchronization between the master time code device and the slave time code device, therefore, the technical problems that manual operation is needed to be carried out on each device and efficiency is low are solved, and the technical problem that errors are large when time codes are synchronized among devices is solved.
The terminal device mentioned in this embodiment is installed with an application program that can configure the time code synchronization device as a master-slave time code device, and the terminal device may be a mobile phone, a tablet, a computer, or the like, and communicates with the first transmission module 10 of each time code synchronization device through the application program of the terminal device, so that not only can remote control over each time code synchronization device be realized, but also remote authorization can be performed on each time code synchronization device, and each time code synchronization device is configured as a master-slave time code device. When one of the time code synchronization devices is configured as a master time code device and the other devices are configured as slave time code devices, the second transmission module 20 of the master time code device and the second transmission module 20 of the slave time code device can transmit the time code signal of the terminal device or the time code signal generated by the master control module 30 of the master time code device, thereby realizing the time code signal synchronization among the terminal device, the master time code device and the slave time code devices.
In some embodiments, the configuration of the master and slave time code devices may be implemented by a key of the time code synchronization device, and the corresponding configuration information may be fed back to the terminal device for display.
In some embodiments, in order to improve the efficiency of time code synchronization and reduce the collision or delay of time code synchronization, the application of the terminal device may further configure the slave time coder so that the transmission of time code signals between the second transmission modules 20 of the slave time coder is not performed.
In other embodiments, the first transmission module 10 may be a wireless transmission module, such as the bluetooth module M1, and the second transmission module 20 may be a wireless transmission module, such as the 2.4G module M2, it being understood that, since most devices support bluetooth and terminal device (e.g., cell phone, etc.) wireless communication, the first transmission module 10 may be the bluetooth module M1, which communicates with the terminal device using the bluetooth protocol; the second transmission module 20 may be a 2.4G module, and it uses a non-bluetooth protocol to implement communication between the master and slave time coders, that is, the transmission protocols of the first and second transmission modules are different, so as to reduce the interference risk of the signal in the transmission process. In other embodiments, the second transmission module may also be a wireless transmission module in other frequency bands, such as 5g, Vhf (very high frequency), Ultra High Frequency (UHF), or the like. Alternatively, the second transmission module 20 may also be a wireless transmission module using the same protocol as the first transmission module 10, such as a 2.4G bluetooth module using the same transmission protocol or a 2.4G rf module using a non-bluetooth protocol.
Referring to fig. 3, fig. 3 is a schematic diagram of an embodiment of a first transmission module according to an embodiment of the utility model. In the embodiment shown in fig. 2, the first transmission module 10 is a bluetooth module M1, and the bluetooth module M1 includes: the antenna comprises a pin RST, a pin HCI-UART-TX, a pin HCI-UART-RX, a pin V-BAT, a pin VDDIO and a pin ANT, wherein the pin RST, the pin HCI-UART-TX and the pin HCI-UART-RX are respectively connected with one pin of the main control module 30 and are different, after the pin V-BAT is electrically connected with the pin VDDIO, a 3.3V power supply end is connected, one end of a capacitor C21, a capacitor C22 and a capacitor C23 which are connected in parallel is connected with the power supply end of the 3.3V power supply end, the other end of the capacitor C21, the capacitor C22 and the pin C23 are respectively electrically connected with the pin V-BAT and the pin VDDIO, and the pin ANT is electrically connected with an antenna U7. The pin RST of the bluetooth module M1 is connected to the main control module 30 to reset the bluetooth module M1 through the main control module 30, and the pins HCI-UART-TX and HCI-UART-RX of the bluetooth module M1 are connected to the main control module 30 to communicate with the application program on the terminal device through the main control module 30 by the bluetooth module M1.
Referring to fig. 4, fig. 4 is a schematic diagram of an embodiment of a second transmission module according to the present invention. In the embodiment shown in fig. 4, the second transmission module 20 is a 2.4G rf module, which includes: the pin CE, the pin CSN, the pin IPQ, the pin SCK, the pin MISO, and the pin MOSI are all connected to the main control module 30. The chip selection signal is transmitted through a pin CSN, and the pin CE is used to control a working mode of the radio frequency module M2, where the working mode includes: a receive mode, a transmit mode, a standby mode, a power down mode, etc., with the pin IPQ used to interrupt the output low level.
Specifically, when a plurality of devices in which the time code generating circuit is located perform synchronization of time code signals, if the first transmission module 10 is the bluetooth module M1 and the second transmission module 20 is a radio frequency module, the radio frequency module may be a non-bluetooth protocol 2.4G module, and only needs to communicate with an APP on a terminal device (for example, a mobile phone) through the first transmission module 10 or the second transmission module 20 of the device 1, so as to set the device 1 as a device of a target master node and set other devices as devices of target slave nodes in a network system, the device 1 outputs the generated time code signal to a pin MOSI of the radio frequency module M2 through the main control module 30 thereof, and simultaneously the main control module 30 thereof also outputs a clock signal to a pin SCK of the radio frequency module M2, and at this time, the time code signal and the clock signal can be output to the radio frequency module M2 of the device in which the target slave node is located through the radio frequency module M2 of the device 1, the rf module M2 inputs the received time code signal and clock signal to the main control module 30 connected to the rf module M2 through the pin MISO of the rf module M2, and the synchronization of the time code signal in the device is realized through the main control module 30.
It can be understood that, compared to only one wireless transmission module, when the wireless transmission module is in communication with the terminal device, it can only realize communication with the terminal device, and cannot communicate with the slave time code device, or the master time code device cannot communicate with the slave time code device when time code synchronization is performed between the master and slave time code devices, each device of the present application has a master control module 30, a first transmission module 10 and a second transmission module 20, so that each device can be configured as a master time code device, and the other devices are correspondingly configured as slave time code devices, when the first transmission module 10 directly communicates with the terminal device to perform time code signal synchronization, the master control module 30 can directly send the synchronized time code signal to the second transmission modules 20 of the other slave time code devices, thereby realizing the synchronization of the time code signal between the master time code device and the slave time code devices through the second transmission modules 20, at this moment, the first transmission module of the slave time code device can not transmit time code signals (for example, in a non-working state or a standby state and the like), so that the transmission speed of the time code signals among the terminal equipment, the master time code device and the slave time code device is higher, the synchronous error of the time code signals among the devices is greatly reduced, and the synchronous accuracy of the time code signals is improved.
In some embodiments, the time code synchronization device further includes a time code switching module and an amplitude adjusting module, and the amplitude adjusting module is electrically connected to the time code switching module and the main control module 30, respectively; the amplitude adjusting module is configured to receive the time code signal generated by the main control module 30 and perform amplitude adjustment to generate time code signals with different amplitudes, for example, the amplitude may be increased to generate a time code signal with an amplitude larger than the original amplitude, or certainly, the amplitude of the time code signal is reduced; the time code switching module is used for switching the input and/or output of the time code signal, for example, the time code switching module may receive the time code signal adjusted by the amplitude adjusting module and output the time code signal to the port. Certainly, the time code switching module is further configured to receive an external time code signal (that is, generated by the main control module 30 that is not the time code device) and send the external time code signal to the main control module 30, so as to synchronize the external time code signal with the time code signal of the main control module 30.
It can be understood that the main control module 30 may be configured to control other modules to work correspondingly, the main control module 30 is further configured to generate a time code signal, the amplitude adjustment module may be configured to receive the time code signal generated by the main control module 30 and perform amplitude adjustment on the time code signal, an amplitude of the adjusted time code signal is different from an amplitude of the time code signal directly generated by the main control module 30, and the amplitude adjustment module may send the time code signal after amplitude adjustment to the time code switching module.
Specifically, if receiving a first operation input, the main control module 30 generates a time code signal according to the first operation input and inputs the time code signal into the amplitude adjustment module for amplitude adjustment, and the time code signal after amplitude adjustment is transmitted to the port through the time code switching module; if the second operation input is received, the main control module 30 receives an external time code signal according to the second operation input configuration port, and the external time code signal is input to the main control module 30 by the time code switching module.
The main control module 30 is configured to receive a first operation input, where the first operation input may be an operation input from a user (for example, operating a mechanical physical switch or operating an interactive interface through a touch screen) or machine automatic recognition, and of course, the first operation input may also be an operation input such as voice, gesture, image recognition, and the like.
It is understood that the operation input may include input/output of a time code signal, output of a time code signal and an audio signal, or output of an audio signal, for example, a menu bar corresponding to the display screen includes a corresponding option, and a user may enter a corresponding operation (signal input/output) mode after selecting and determining the corresponding option, that is, the master control module 30 may enable the port to be in different signal output modes when acquiring different operation inputs from the user. For example, the first operation input may include a time code signal output mode, where the time code signal output mode may be a single time code signal output mode or a time code signal and audio signal simultaneous output mode, and the like, it can be understood that, if the port is in the time code signal output mode or the time code signal and audio signal simultaneous output mode, the main control module 30 may generate a time code signal and configure the time code signal to be input to the amplitude adjusting module for amplitude adjustment, and the time code signal after amplitude adjustment is transmitted to the port through the time code switching module.
In some embodiments, the main control module 30 may further receive a second operation input, a third operation input, and the like, where each input operation is different, for example, the key options are different or the corresponding menu bars are different, and it can be understood that the main control module 30 is configured to receive the second operation input to configure the port to receive an external time code signal, where the external time code signal is input to the main control module 30 by the time code switching module, that is, if the port is in the time code signal input mode, the time code signal is transmitted to the time code switching module through the port and is transmitted to the main control module 30 through the time code switching module.
It can be understood that only one port is arranged in the circuit, a time code switching module is arranged between the main control module 30 and the port, and the main control module 30 controls the conduction of the time code switching module, so that an external time code signal can be input into the main control module 30 through the port, and meanwhile, an amplitude adjusting module is arranged between the main control module 30 and the time code switching module, so that the time code signal with the adjusted amplitude can be output from the port, the technical problem that the time code signal output from the port interferes with an audio signal is solved, and the use efficiency of a user is greatly improved.
In addition, the above mentioned ports can be in not only the time code signal output mode, but also the time code signal and audio signal output mode at the same time, or in the time code signal input mode, or in the audio signal output mode. The audio signal may be collected by an audio collection module disposed in the time code synchronization device, and input to the audio device connected to the port through the port, the time code signal may also be input to other devices capable of recognizing the time code signal through the port, and the external time code signal may also be input to the main control module 30 through the port and the time code switching module. In addition, when the port outputs the time code signal alone, the time code signal may be a time code after the amplitude is adjusted; when the port outputs the time code signal and the audio signal at the same time, the time code signal can be the time code signal after the amplitude is adjusted, so that the interference of the time code signal to the audio signal is reduced.
The main control module 30 may be an MCU (central processing unit) chip, and the main control module 30 is electrically connected to other modules through a plurality of pins with different functions. Specifically, one end of the time code switching module is electrically connected to one pin of the main control module 30, so as to input an externally generated time code signal into the main control module 30 through the time code switching module. Meanwhile, the main control module 30 may also generate a time code signal and input the time code signal into the amplitude adjustment module for amplitude adjustment; the amplitude adjusting module is electrically connected with the plurality of pins of the main control module 30, so that the main control module 30 transmits the generated time code signal to the amplitude adjusting module, the amplitude adjusting module is controlled by the main control module 30 to adjust the amplitude of the time code signal, the amplitude adjusting module controls the time code switching module after inputting the time code signal with the adjusted amplitude into the time code switching module, and the main control module 30 controls the time code switching module to output the time code signal with the adjusted amplitude into the port.
Referring to fig. 5, fig. 5 is a schematic diagram of an embodiment of a time code switching module according to an embodiment of the utility model. As shown in fig. 5, the time code switching module is provided with a switch, wherein after the time code signal is amplitude-adjusted by the amplitude adjustment module, the main control module 30 controls the switch to be turned on, and the amplitude-adjusted time code signal can be output to the port through the switch. Of course, the time code switching module further includes a time code constant circuit electrically connected to the main control module 30 and the switch, the time code constant circuit may receive an external time code signal from the port, the amplitude of the external time code signal may be different from the amplitude of the time code signal after the amplitude adjustment, and the external time code signal outputs a constant time code signal to the main control module 30 after passing through the time code constant circuit.
It is understood that the time code constant circuit may include a resistor R4, a resistor R5, a resistor R8, a capacitor C9 and a transistor Q1, one end of the resistor R4 and the resistor R8 is connected to the 3.3v power supply terminal, the resistor R8 and the resistor R5 are connected to the pin 1 of the transistor Q1, the other end of the resistor R5 is connected to the pin 2 of the transistor Q1, the resistor R4 is connected to the pin 3 of the transistor Q1, and the capacitor C9 is connected between the pins 2 and 3 of the transistor Q1, although the time code constant circuit may include other peripheral circuits as shown in the figure, it is understood that when the external time code signal is sometimes too small to be identified, the setting of the resistor R4, the resistor R5, the resistor R8, the capacitor C9 and the transistor Q1 may enable the time code signal with a specific amplitude to be identified, for example, the amplitude of the external time code signal may be limited by setting the parameter values of the above elements, for example, when the amplitude of the external time code signal is less than 0.5v, the external time code signal cannot be transmitted to the main control module 30 through the port to be recognized, when the amplitude of the external time code signal is greater than 0.5v, for example, 2.8v, 3v, 3.3v, 3.5v, and other different amplitudes, the external time code signal is uniformly and constantly output to the main control module 30 at this time, and the external time code signal can be stably transmitted to the main control module 30 through the port to be recognized, and in some embodiments, the resistor R4, the resistor R5, the resistor R8, the capacitor C9, and the transistor Q1 may also reduce the risk that the external time code signal is directly transmitted to the main control module 30 through the switch, which may cause the main control module 30 to be burned out.
In the embodiment shown in fig. 5, the TRRS port is used as a port, the switch may be an analog switch U1, and the analog switch U1 may include: pin B1, pin B0, pin VCC, pin SELECT, and pin a, the time code switching module 20 may further include a resistor R6, a resistor R7, a resistor R9, a resistor R10, a resistor R11, a capacitor C10, a capacitor C11, a capacitor C12, a capacitor C13, and an inductor L1.
The pin B1 is electrically connected with the amplitude adjusting module through a resistor R9, the pin B0 is electrically connected with the base electrode of the triode Q1 sequentially through a resistor R6 and a capacitor C10, and is connected with a 3.3V power supply end after sequentially through the resistor R6, the capacitor C10 and the resistor R8, and is grounded sequentially through the resistor R6, the capacitor C10 and the R5, the collector electrode of the triode Q1 is electrically connected with one pin of the main control module 30, the pin is connected with the 3.3V power supply end through the resistor R4, and is grounded through the capacitor C9, and the emitter electrode of the triode Q1 is grounded; the pin A is electrically connected with the L end of the TRRS port through a resistor R11, and is also electrically connected with the cathode of the voltage stabilizing diode DZ1, and the anode of the voltage stabilizing diode DZ1 is grounded; the pin VCC is connected to a 3.3V power supply end through the inductor L1, one end of the capacitor C12, which is connected in parallel with the capacitor C13, is electrically connected with the pin VCC and the inductor L1, and the other end is grounded; the pin SELECT is electrically connected to one pin of the main control module 30, one end of the resistor R10 connected in parallel with the capacitor C11 is electrically connected to the pin SELECT and one pin of the main control module 30, and the other end is grounded. When an external time code signal is input to the pin a of the analog switch U1 through the L-terminal of the TRRS port, the main control module 30 controls conduction between the pin a and the pin B0, and the external time code signal sequentially passes through the pin a and the pin B0 and is input to the main control module 30 through the transistor Q1; when the time code signal generated by the main control module 30 needs to be output to the L end of the TRRS port, the time code signal needs to be input to the amplitude adjusting module through the main control module 30 for amplitude adjustment, the time code signal after amplitude adjustment is output to the pin B1 of the analog switch U1 through the amplitude adjusting module, at this time, the main control module 30 enables the pin SELECT of the analog switch U1, the pin B1 is connected with the pin a, and the time code signal after amplitude adjustment can be sequentially input to the L end of the TRRS port through the pin B1 and the pin a.
Referring to fig. 6, fig. 6 is a schematic diagram of an embodiment of an amplitude adjustment module according to an embodiment of the present invention. As shown in fig. 6, the amplitude adjustment module is provided with a potentiometer, which is electrically connected to the main control module 30 and is used for receiving the time code signal from the main control module 30 and adjusting the amplitude of the time code signal output. The potentiometer in the present invention is preferably a digital potentiometer, but not limited to a digital potentiometer, and may also be a wire-wound potentiometer, a synthetic carbon film potentiometer, an organic solid core potentiometer, a metal glass glaze potentiometer, a conductive plastic potentiometer, and the like, which may be selected according to actual situations, and is not limited in this embodiment.
In the embodiment shown in fig. 6, the potentiometer is a digital potentiometer U2, and the digital potentiometer U2 may include: pin SCL, pin SDA, pin WA, pin HA, pin VDD, pin a0, pin a1, pin a2, pin VSS, pin LB, pin LA, pin HB, and pin WB, where pin SCL, pin SDA, and pin HA are all separately and electrically connected to one pin of the main control module 30 and have different pins, pin WA is electrically connected to the time code switching module, pin VDD is connected to the 3.3V power supply terminal through an inductor L2, and is grounded through a capacitor C17 and a capacitor C18, and pin a0, pin a1, pin a2, pin VSS, pin LB, pin LA, pin HB, and pin WB are all grounded. When the main control module 30 inputs the generated time code signal into the amplitude adjustment module, the time code signal is input into the digital potentiometer U2 through the pin HA in the amplitude adjustment module, and the pin SCL and the pin SDA of the digital potentiometer U2 are used to control the digital potentiometer U2 to adjust the amplitude of the time code signal, the time code signal with the adjusted amplitude is output to the time code switching module through the pin WA of the digital potentiometer U2, at this time, the main control module 30 controls the time code switching module to be turned on, and the time code signal with the adjusted amplitude can be output to the port through the time code switching module.
In the above embodiment, the amplitude adjusting module may further include a buffer U3 and a follower U4 in addition to the potentiometer, wherein the follower U4 is respectively connected to the potentiometer and the time code switching module and is disposed between the potentiometer and the time code switching module, the buffer U3 is respectively connected to the potentiometer and the main control module 30, the time code signal generated by the main control module 30 is input to the potentiometer through the buffer U3 and is subjected to amplitude adjustment, the time code after amplitude adjustment is input to the follower U4 and is output to the switch of the time code switching module through the follower U4, at this time, the main control module 30 controls the switch to be turned on, and the time code signal after amplitude adjustment can be output to the port through the switch.
Specifically, the follower U4 may be a voltage follower, which is used as a buffer stage and an isolation stage in the time code synchronization apparatus, and is used to realize stable input of the amplitude-adjusted time code signal into the time code switching module.
In the embodiment shown in fig. 6, the potentiometer is a digital potentiometer U2, the buffer U3 may include pin VCC, pin Y, and pin a, and the follower U4 may include pin 1, pin 2, pin 3, pin 4, and pin 5. A pin a of the buffer U3 is electrically connected to a pin of the main control module 30, a pin VCC is connected to a 3.3V power supply terminal, the pin VCC is grounded through a capacitor C19, and a pin Y is electrically connected to a pin HA of the digital potentiometer U2 through a drop resistor R12 and a resistor R13 in sequence; pin 1 of the follower U4 is electrically connected to pin WA of the digital potentiometer U2, pin 2 is grounded, pin 3 is electrically connected to pin 4 through resistor R14, pin 4 is electrically connected to one pin of the second switch U2, pin 4 is grounded through capacitor C16, pin 5 is connected to a 3.3V power supply terminal, and meanwhile, capacitor C14 and capacitor C15 are arranged between pin 5 and the 3.3V power supply terminal, one end of capacitor C14 connected in parallel to capacitor C15 is grounded, and the other end is electrically connected to pin 5 and connected to the 3.3V power supply terminal. The master control module 30 may buffer the generated time code signal through the buffer U3 to achieve stable time code signal acceptance at the pin HA of the digital potentiometer U2. When the time code signal completes amplitude adjustment in the digital potentiometer U2, the time code signal can be input into the follower U4 through the pin WA of the digital potentiometer U2, and input into the time code switching module through the pin 4 of the follower U4, at this time, the main control module 30 controls the switch of the time code switching module to be turned on, and the time code signal after amplitude adjustment can be output to the port through the switch.
In another embodiment, the time code synchronization device further includes an audio acquisition module electrically connected to the port and the main control module 30 respectively. Specifically, one end of the audio acquisition module is electrically connected to one pin of the main control module 30. After the audio signal is collected by the audio collection module, the main control module 30 generates a corresponding driving signal and controls the audio collection module to directly input the audio signal into the port through the pin. In this embodiment, the pins electrically connected to the amplitude adjusting module, the time code switching module, and the audio acquisition module in the main control module 30 are different.
Referring to fig. 7, fig. 7 is a schematic diagram of an embodiment of an audio acquisition module according to the present invention. As shown in fig. 7, the audio acquisition module includes a microphone MC1 and a switch, one end of the microphone MC1 (or microphone) is connected to the main control module 30 and the switch, and the other end is grounded; the switch is connected with the main control module 30 and the port respectively. The microphone MC1 in this embodiment is used to convert the collected sound into an audio electronic signal, and the main control module 30 inputs the audio electronic signal into the port through the control switch.
It should be noted that the microphone MC1 used in the present invention may be a microphone of carbon particle type, electromagnetic type, capacitance type, electret capacitance type, piezoelectric crystal type, piezoelectric ceramic type, silicon dioxide type, etc., the switch used in the present invention may be an analog switch, or a switch controlled by the main control module 30 to be turned on, and the port may be any one of a TRRS port, a Typec port, and a USB port, which may be selected according to actual situations, and is not limited in this embodiment.
In the embodiment shown in fig. 7, the port is a TRRS port, the switch may be an analog switch U5, the analog switch U5 may include a pin B1, a pin VCC, a pin SELECT, and a pin a, and the audio acquisition module may further include: the circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a capacitor C7 and a capacitor C8.
One end of the capacitor C5, the resistor R4 and the capacitor C6 which are connected in parallel is electrically connected with the pin B1, and the other end is grounded; one end of the microphone MC1 is grounded, and the other end of the microphone MC1 is electrically connected with the pin B1 through the capacitor C1; one end of the capacitor C2, the capacitor C3 and the capacitor C4 which are connected in parallel is electrically connected with the pin B1 through the resistor R3 and the capacitor C1 in sequence, and the other end of the capacitor C1 is grounded; a resistor R1, a resistor R3 and a capacitor C1 are electrically connected between the pin B1 and one pin of the main control module 30, and the pin B1 is electrically connected to the capacitor C1 and the resistor R2 in sequence and then is connected to a 3.3V power supply terminal; the pin A is electrically connected with the end R of the TRRS port through a capacitor C7; the pin VCC is connected to a 3.3V power supply end and is grounded through a capacitor C8; the terminal L of the TRRS port is grounded through a bidirectional TVS diode D1, and the terminal R is grounded through a bidirectional TVS diode D2. When the audio signal passes through the capacitor C1 in the audio acquisition module, the main control module 30 enables the pin SELECT at the analog switch U5, the pin B1 is connected to the pin a, the audio signal may be input to the R end of the TRRS port sequentially through the pin B1 and the pin a, and the audio signal is output to other devices through the male connector of the TRRS port.
In another embodiment, the time code synchronization device further comprises: the working mode switching module is electrically connected to the main control module 30 to drive the main control module 30 to generate a control signal, so as to switch the working mode of the time code synchronizer, and the working mode includes: for example, the port outputs the amplitude-adjusted time code signal alone; the port outputs the audio signal separately; the port simultaneously outputs the time code signal and the audio signal after amplitude adjustment; the ports input time code signals and other patterns independently. When the time code signal is input through the port, the time code signal is input into the time code switching module through the port, and is input into the main control module 30 through the time code switching module.
In a more specific embodiment, the operation mode switching module may be provided with an encoder U6, and the encoder U6 is electrically connected to the main control module 30. When the working mode of the time code synchronizer needs to be switched, the main control module 30 only needs to generate a control signal through a pulse signal generated in the encoder U6, so as to realize that the port is in a time code signal output mode, or a time code signal and audio signal simultaneous output mode, or a time code signal input mode.
Referring to fig. 8, fig. 8 is a schematic diagram of an embodiment of a working mode switching module according to an embodiment of the utility model. As shown in fig. 8, the encoder U6 includes pin 1, pin 2, pin 3, and pin 4, and pin 1, pin 3, and pin 4 are all connected with a pin of the main control module 30 and the pins are different, pin 2 is grounded, pin 1 is connected to the 3.3V power supply terminal through the resistor R16, pin 3 is connected to the 3.3V power supply terminal through the resistor R17, and pin 4 is connected to the 3.3V power supply terminal through the resistor R18. After the working mode of the time code synchronization device is selected on the encoder U6, the switch key on the encoder U6 is closed, the pin 2 and the pin 3 of the encoder U6 are turned on from off, and the main control module 30 generates a control signal through pulse signals at the pin 1 and the pin 4, so that the port is in a time code signal output mode, or a time code signal and audio signal output mode at the same time, or a time code signal input mode.
In other embodiments, the time code synchronization device further includes a display module electrically connected to the main control module 30. The working mode of the time code synchronization device is displayed in the display module, and the switching of the working mode of the time code synchronization device can be realized by operating the encoder U6 in the display module. The display module can further comprise a first switching tube and a second switching tube, and the first switching tube and the second switching tube form a half-bridge driving circuit to drive the display module to work in the display module.
Referring to fig. 9, fig. 9 is a schematic diagram of a main control module according to an embodiment of the present invention. As shown IN fig. 9, the main control module 30 is a single-chip microcomputer MCU, and the single-chip microcomputer MCU may include a pin PA8, a pin PA15, a pin PB1, a pin PB2, a pin PB3, a pin PB4, a pin PB7, a pin PB8, a pin PB9, a pin PC0, a pin PC1, a pin PC3, a pin PC12, a pin PC13, pins PC14-OSC32-IN, a pin PG9, a pin PG10, and a pin PG 13. The pin PB1 is connected with the pin B1 of the analog switch in the audio acquisition module to control the audio acquisition module to output an audio signal in the port; the pin PB4 is connected to the pin B0 of the analog switch in the time code switching module to receive the time code signal input by the time code switching module; the pin PA8 is connected to the pin a of the buffer U3 in the amplitude adjustment module to output the time code signal to the amplitude adjustment module, and the pins PB8 and PB9 are respectively connected to the pin SCL and the pin SDA of the digital potentiometer in the amplitude adjustment module to adjust the amplitude of the time code signal; pins PC14-OSC32-IN are electrically connected to the power switch of the time code synchronization device, and pin PC3, pin PB3, and pin PA15 are respectively connected to pin 3, pin 4, and pin 1 of the encoder U6 IN the operating mode switching module, thereby realizing switching of the operating mode of the time code synchronization device; pin PB2 is connected to pin RST of bluetooth module M1 to reset bluetooth module M1, and pins PC0 and PC1 are connected to pins HCI-UART-TX and HCI-UART-RX of bluetooth module M1, respectively, to enable an application program on a device where bluetooth module M1 is located to communicate; the pin PG13, the pin PC13, the pin PB7, the pin PG9, the pin PG10, and the pin PC12 are respectively connected to the pin IPQ, the pin CE, the pin CSN, the pin SCK, the pin MISO, and the pin MOSI of the radio frequency module M2 to transmit a time code signal, and implement time code synchronization by an application program.
In other embodiments, the time code synchronization device may further include a charging module, a charging interface, a voltage conversion module, and a power supply module. The charging module is electrically connected to the charging interface, the voltage conversion module and the main control module 30, and the power supply module is electrically connected to the voltage conversion module, the first transmission module 10, the second transmission module 20, the main control module 30 and the display module.
Specifically, the charging module is provided with a terminal for placing a battery and a charging chip, and the voltage conversion module can boost the voltage output by the battery to a preset voltage (for example, 4.4V), and respectively supply power to the main control module 30, the display module, the first transmission module 10, and the second transmission module 20 through the power supply module. The charging chip is electrically connected with the charging interface through the socket, meanwhile, the charging chip is connected with the terminal to charge the battery in the terminal, and meanwhile, the charging chip is electrically connected with the main control module 30 to supply power to the time code synchronization device; the charging interface can be a Type-C interface in a USB interface.
In other embodiments, the power supply module may further include a first power supply module, a second power supply module, and a third power supply module. The first power supply module is electrically connected with the main control module 30 and is used for supplying power to the main control module 30; the second power supply module is electrically connected with the display module and the first transmission module 10 and is used for supplying power to the display module and the first transmission module 10; the third power supply module is electrically connected to the second transmission module 20 and is configured to supply power to the second transmission module 20.
In other embodiments, the time code synchronization device further includes an upgrade module, and the upgrade module is used for upgrading the interface module. The upgrade module is electrically connected to the main control module 30, and the main control module 30 realizes the upgrade of the interface module by controlling the upgrade module.
The present invention also provides a time code synchronization system, which includes: the master-slave devices where the target master node and the target slave node are located are the time code synchronization devices provided by the above embodiments.
Specifically, when a plurality of devices in which the time code generating circuit is located perform synchronization of time code signals, it is only necessary to communicate with an APP on a terminal device (for example, a mobile phone) through the first transmission module 10 or the second transmission module 20 of the device 1, so as to set the device 1 as a device of a target master node and set other devices as devices of a target slave node in the slave network system. The main control module 30 of the device 1 receives a configuration signal configured as a main time code device, and the first transmission module 10 of the device 1 transmits a time code signal of a terminal device between the terminal device and the terminal device to synchronize the time code signal of the main time code device and the time code signal of the terminal device; the second transmission module 20 of the device 1 and the other second transmission modules 20 configured to transmit the time code signal of the terminal device between the slave time code device and the other second transmission modules to synchronize the time code signal of the slave time code device and the time code signal of the terminal device; the time code signals generated by the master control module 30 of the master time coder are transmitted between the second transmission module 20 of the device 1 and the other second transmission modules 20 configured as slave time coders, in order to synchronize the time code signals of the master time coders with the time code signals of the slave time coders.
In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing method embodiment, which is not described herein again.
The time code synchronization device and system provided by the embodiments of the present invention are described in detail above, and specific embodiments are applied in the present disclosure to explain the principles and embodiments of the present invention, and the description of the embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A time code synchronization apparatus, comprising:
a first transmission module (10) for communicating with a terminal device;
a second transmission module (20) for communicating with other coders; and
the main control module (30) is electrically connected with the first transmission module (10) and the second transmission module (20);
the main control module (30) receives a configuration signal configured as a main time code device, and the first transmission module (10) transmits a time code signal of the terminal equipment to the terminal equipment so as to synchronize the time code signal of the main time code device and the time code signal of the terminal equipment;
the second transmission module (20) and other second transmission modules (20) configured to transmit the time code signal of the terminal device between the slave time code device and the other slave time code device so as to synchronize the time code signal of the slave time code device and the time code signal of the terminal device;
or, the time code signal generated by the master control module (30) of the master time code device is transmitted between the second transmission module (20) and other second transmission modules (20) configured as slave time code devices so as to synchronize the time code signal of the master time code device and the time code signal of the slave time code devices.
2. The time code synchronization device according to claim 1, wherein the first transmission module (10) is a bluetooth module (M1), the second transmission module (20) is a 2.4G module (M2), the bluetooth module (M1) communicates with the terminal device using a bluetooth protocol, and the 2.4G module (M2) implements communication between master and slave time coders using a non-bluetooth protocol.
3. Time code synchronization device according to claim 1, characterized in that said further transmission module (10) is configured to not transmit said time code signal from time code device to time code device.
4. The time code synchronization device according to claim 1, further comprising a time code switching module and an amplitude adjusting module, wherein the amplitude adjusting module is electrically connected to the time code switching module and the main control module (30), respectively; wherein the content of the first and second substances,
if a first operation input is received, the main control module (30) generates a time code signal according to the first operation input and inputs the time code signal into the amplitude adjusting module for amplitude adjustment, and the time code signal after amplitude adjustment is transmitted to a port through the time code switching module;
if a second operation input is received, the main control module (30) configures the port to receive an external time code signal according to the second operation input, and the external time code signal is input to the main control module (30) through the time code switching module.
5. The time code synchronization device according to claim 4, wherein the time code switching module includes a switch and a time code constant circuit, the switch is respectively connected to the port and the amplitude adjustment module, the time code constant circuit is electrically connected to the main control module (30) and the switch, the main control module (30) is configured to control the switch to be turned on to configure the port to input an external time code signal or to configure the port to output the time code signal with an adjusted amplitude, the amplitude of the external time code signal is different from the amplitude of the time code signal with an adjusted amplitude, and the time code constant circuit is configured to receive the external time code signal and output a constant time code signal to the main control module (30).
6. The time code synchronization device according to claim 4, wherein a potentiometer is disposed in the amplitude adjustment module, the potentiometer is electrically connected to the time code switching module and the main control module (30), and the main control module (30) controls the potentiometer to adjust the amplitude of the time code signal.
7. The time code synchronization device according to claim 4, wherein a buffer is further disposed in the amplitude adjustment module, the buffer is electrically connected to the time code switching module and the main control module (30), and the main control module (30) controls the buffer to buffer the time code signal before amplitude adjustment.
8. The time code synchronization device according to claim 4, wherein a follower is further disposed in the amplitude adjustment module, the follower is electrically connected to the time code switching module and the main control module (30), and the main control module (30) controls the follower to stably input the amplitude-adjusted time code signal into the time code switching module.
9. The time code synchronization device according to claim 1, further comprising an audio acquisition module electrically connected to the main control module (30), the audio acquisition module being configured to acquire an audio signal; wherein the content of the first and second substances,
if a third operation input is received, the main control module (30) controls the audio signal of the audio acquisition module to be transmitted to the port according to the third operation input.
10. A time code synchronization system, comprising: a target master node and at least one target slave node, wherein the master and slave devices in which the target master node and the target slave node are located are the time code synchronization devices according to any one of claims 1 to 9.
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| CN202220698719.7U CN216904996U (en) | 2022-03-28 | 2022-03-28 | Time code synchronization device and system |
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| CN202220698719.7U CN216904996U (en) | 2022-03-28 | 2022-03-28 | Time code synchronization device and system |
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Address after: 518110 floors 2-4, building 21, Longjun Industrial Zone, Jiuwo, Longping community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Aitushi Innovation Technology Co.,Ltd. Address before: 518110 floors 2-4, building 21, Longjun Industrial Zone, Jiuwo, Longping community, Dalang street, Longhua District, Shenzhen City, Guangdong Province Patentee before: APUTURE IMAGING INDUSTRIES Co.,Ltd. |
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