CN113922904B - Sound console data backup and switching method based on double controllers - Google Patents
Sound console data backup and switching method based on double controllers Download PDFInfo
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- CN113922904B CN113922904B CN202111178656.9A CN202111178656A CN113922904B CN 113922904 B CN113922904 B CN 113922904B CN 202111178656 A CN202111178656 A CN 202111178656A CN 113922904 B CN113922904 B CN 113922904B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
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- H—ELECTRICITY
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- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/09—Arrangements for device control with a direct linkage to broadcast information or to broadcast space-time; Arrangements for control of broadcast-related services
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Abstract
The invention belongs to the technical field of electronics, and provides a sound console data backup and switching method based on double controllers, which comprises the following steps: step 1: the first controller and the second controller both receive control signals input by all input modules; step 2: the first controller and the second controller process all control signals to obtain control instructions; the first controller outputs part of the control instructions, generates feedback signals and sends the feedback signals to the second controller; the second controller outputs the residual control instruction, generates a feedback signal and sends the feedback signal to the first controller; step 3: if the first controller or the second controller should receive but not receive the feedback signal sent by the other party, the first controller or the second controller outputs all control instructions, which is advantageous in that: the cross backup and seamless control switching are realized in one sound console, no delay is needed, no cable is needed to be plugged and unplugged, and the system belongs to noninductive operation for users. A system for adapting the method is also disclosed.
Description
Technical Field
The invention belongs to the technical field of electronics, and particularly relates to a sound console data backup and switching method and system based on double controllers.
Background
CN201711015163.7 discloses an audio transmission system with a multistage cross backup architecture, comprising a microphone, a microphone distributor, a main transmission system and a standby transmission system, wherein the main transmission system comprises a main digital sound console, a main digital audio processor, a main digital audio interface box and a main loudspeaker which are connected in sequence; the standby transmission system comprises a standby digital sound console, a standby digital audio processor, a standby digital audio interface box and a standby loudspeaker which are sequentially connected; the audio transmission system comprises a plurality of different cross backup devices arranged between the main transmission system and the standby transmission system, and the cross backup devices are used for realizing multi-stage cross backup in audio signal transmission. The invention provides an audio transmission system with higher reliability and stability and realizing seamless automatic switching.
The invention explicitly states that: the second-stage cross backup device is a signal processing cross backup device and is mainly realized through an intelligent audio switcher and a passive signal distributor.
Cross-backup is one form that can be implemented, but cross-backup requires at least two hosts, two tuning tables.
The problems of the prior art are that: how to realize data backup and seamless switching of data based on one sound console so as to avoid the situations of delay, breakdown and the like existing in the traditional switching process.
Disclosure of Invention
The invention mainly aims to provide a sound console data backup and switching method based on double controllers, which has the advantages that: the cross backup and seamless control switching are realized in one sound console, no delay is needed, no cable is needed to be plugged and unplugged, and the system belongs to noninductive operation for users.
Meanwhile, the invention also provides a system based on the method.
According to a first aspect of the invention, there is provided a dual-controller-based sound mixing console data backup and switching method, the method involving a sound mixing console, a first controller and a second controller; the sound console is matched with a plurality of input modules for a control person to input control signals;
the method comprises the following steps:
step 1: the first controller and the second controller both receive control signals input by all input modules;
step 2: the first controller and the second controller process all control signals to obtain control instructions;
the first controller outputs part of the control instructions, generates feedback signals and sends the feedback signals to the second controller;
the second controller outputs the residual control instruction, generates a feedback signal and sends the feedback signal to the first controller;
step 3: if the first controller or the second controller should receive but not receive the feedback signal sent by the other party, the first controller or the second controller outputs all control instructions.
In other words: here the two controllers are assumed to be a and B controllers. Comprising the following steps: step 1: the controller A and the controller B both receive control signals input by all input modules; step 2: the controller A and the controller B process the input control signals simultaneously to obtain control instructions and generate corresponding data for storage: step 3: the two controllers A and B respectively judge whether the input signal belongs to the controller, the generated data need to be sent out, and the controller which does not need to send the data starts an execution completion timer. Step 4: if the B controller needs to send data, an input signal execution completion signal is sent to the A controller after the data is sent, and the A controller saves the data needed by the input signal for backup after receiving the signal. Step 5: if the A controller does not need to send data, the B controller needs to send the data controller, if the A controller does not receive the signal completed by the B controller within a specified time, the B controller is taken over to execute the task of sending the data, the B controller is forced to be reset, after the reset is completed, all the data are sent to the B controller, and then all rights belonging to the B controller are given out. Similarly, if the B controller does not need to send data, the B controller does not receive the execution completion signal of the a controller within a predetermined time, and the a controller is reset and subsequently operated.
The tuning console data backup and switching method based on the dual controllers further comprises a DSP processor, wherein the first controller and the second controller process control signals to generate control instructions and send the control instructions to the DSP processor; the feedback signals are generated after the first controller and the second controller send control instructions to the DSP processor.
In the above-mentioned tuning console data backup and switching method based on dual controllers, the step 3 specifically includes:
step 31: if the first controller or the second controller receives the control signal which is not in charge of processing and outputting, waiting for the other side to send a feedback signal;
step 32: if the feedback signal is not received, judging that the other party is down, and outputting all control instructions by the first controller or the second controller.
In the above-mentioned tuning console data backup and switching method based on dual controllers, further includes:
step 4: the first controller or the second controller which is not in downtime sends a restarting instruction to restart the first controller or the second controller which is in downtime;
step 5: after receiving the control signals which are processed and output by the first controller or the second controller which is restarted successfully, the first controller or the second controller processes the control signals and generates feedback signals to send the feedback signals to the other party;
and after the first controller and the second controller can both receive feedback signals of the other side, the first controller and the second controller work according to the step 1 and the step 2.
In the dual-controller-based sound mixing console data backup and switching method, the input modules comprise a plurality of first input modules and a plurality of second input modules, and the first input modules and the second input modules are provided with unique IDs; the control signals generated by the first input module and the second input module contain respective IDs;
in step 2, the first controller is responsible for processing all control signals and outputting control instructions corresponding to the control signals containing the ID of the first input module; the second controller is responsible for processing all control signals and outputting control instructions corresponding to the control signals containing the ID of the second input module;
in step 3, the first controller or the second controller that is not down is responsible for processing all control signals and outputting all control instructions.
In the dual-controller-based sound console data backup and switching method, the input module comprises one or more of keys, a push rod and a knob which are matched with the sound console for use; analog signals generated by the input module are sent to the corresponding first controller and second controller after analog-to-digital conversion.
In addition, the invention also discloses a system for backing up and switching the sound console data based on the double controllers, which is used for realizing the method according to any one of the above, and comprises the following steps:
a first controller and a second controller;
the first controller includes:
a first signal receiving module: the control signals are used for receiving the input of all the input modules;
a first signal processing module: the control signal processing device is used for processing the control signal to generate a control instruction, outputting part of the control instruction, generating a feedback signal after outputting part of the control instruction, and sending the feedback signal to the second controller;
the first feedback signal processing module: the first signal processing module is used for receiving the feedback signal sent by the second controller, judging whether the feedback signal is in a state that the feedback signal sent by the second controller is received but not received, and if yes, controlling the first signal processing module to output all control instructions; if not, controlling the first signal processing module to output part of the control instruction;
the second controller includes:
a second signal receiving module: the control signals are used for receiving the input of all the input modules;
a second signal processing module: the control signal processing device is used for processing the control signal to generate a control instruction, outputting the remaining control instruction, generating a feedback signal after outputting the remaining control instruction, and sending the feedback signal to the first controller;
and a second feedback signal processing module: the second signal processing module is used for receiving the feedback signal sent by the first controller, judging whether the feedback signal is in a state that the feedback signal sent by the first controller is received but not received, and if yes, controlling the second signal processing module to output all control instructions; if not, controlling the second signal processing module to output the rest control instructions;
the input module is arranged on the sound console and used for inputting control signals by a control person.
In the system for backing up and switching sound console data based on the dual controllers, the first signal processing module and the second signal processing module are used for processing control signals to generate control instructions and sending the control instructions to the DSP controller matched with the sound console;
the first signal processing module and the second signal processing module are also used for generating feedback signals after sending control instructions to the DSP processor.
In the system for backing up and switching sound mixing console data based on the dual controllers, the first controller and the second controller both comprise restarting modules, and the restarting modules are used for restarting after the first controller and the second controller are down.
In the system for backing up and switching sound mixing console data based on the dual controllers, the input modules are divided into a plurality of first input modules and a plurality of second input modules, wherein the first input modules and the second input modules are provided with unique IDs, the first signal processing modules are pre-allocated with the IDs of the first input modules, and the second signal processing modules are pre-allocated with the IDs of the second input modules;
the first signal processing module is used for outputting a control instruction corresponding to the ID of the first input module; the second signal processing module is used for outputting a control instruction corresponding to the ID of the second input module.
One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects:
the method adopts 2 controllers, the two controllers share and process the control signals input by the input module matched with the sound console, under normal conditions, the two controllers independently process all the control signals and generate control instructions, and are respectively responsible for outputting a part of control instructions, do not interfere with each other, and only receive the feedback signals of the other side and judge;
under the condition that one controller is down, the other controller decides whether to take over and output all control instructions according to whether feedback signals (the feedback signals are received but not received) or not, and the aim that one controller controls all signals temporarily can be achieved.
The invention also provides a system based on the method.
Drawings
The invention is further described below with reference to the drawings and examples;
fig. 1 is a control flow chart of embodiment 1 of the present invention;
fig. 2 is a schematic structural view of embodiment 2 of the present invention.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
Referring to fig. 1, a dual-controller-based sound mixing console data backup and switching method relates to a sound mixing console, a first controller and a second controller; the sound console is matched with a plurality of input modules for a control person to input control signals; the sound console is also matched with a DSP processor (digital signal processor).
The control modules comprise a plurality of clippers, knobs and keys on the sound console, each control module has a unique ID, each control signal comprises a corresponding ID, or analog signals generated by each control module are subjected to analog-to-digital conversion and then are added with IDs;
further, the operator may assign IDs to the first controller and the second controller in advance, and assign IDs of all control modules to the first controller and the second controller, and the preferred principle to be followed should be to achieve the equalization process of the two controllers.
Therefore, in the present embodiment, the input modules are defined as the first control module and the second control module according to the pre-allocation of the operator.
The method comprises the following steps:
step 1: the first controller and the second controller both receive control signals input by the first control module and the second control module;
step 2: the first controller and the second controller process all control signals to obtain control instructions;
the first controller outputs part of the control instructions, generates feedback signals and sends the feedback signals to the second controller;
the second controller outputs the residual control instruction, generates a feedback signal and sends the feedback signal to the first controller;
the first controller and the second controller are respectively provided with the IDs, so that the first controller and the second controller only need to output control instructions corresponding to control signals containing the IDs allocated to the first controller and the second controller;
step 3: if the first controller or the second controller should receive but not receive the feedback signal sent by the other party, the first controller or the second controller outputs all control instructions;
specifically, if the second controller should receive but not receive the feedback signal sent by the first controller, the second controller outputs all control instructions; vice versa;
in this step, the method for judging that "should be received but not received" is as follows:
step 31: if the first controller or the second controller finds that the control instruction does not belong to the output of the first controller (namely, when the control signal which does not belong to the ID allocated to the first controller is received, the control instruction corresponding to the control signal is considered not to be output by the first controller), the first controller or the second controller waits for the other side to send a feedback signal;
step 32: if the feedback signal is not received, judging that the other party is down, and outputting all control instructions by the first controller or the second controller.
Step 4: the first controller or the second controller which is not in downtime sends a restarting instruction to restart the first controller or the second controller which is in downtime;
step 5: after receiving the control signals which belong to the processing and output of the first controller or the second controller which is successfully restarted, processing all the control signals, outputting the control instructions which belong to the output of the first controller or the second controller, generating feedback signals and sending the feedback signals to the other side;
and after the first controller and the second controller can both receive feedback signals of the other side, the first controller and the second controller work according to the step 1 and the step 2.
It should be noted that, when the input module does not act for a long time, the first controller and the second controller may be connected based on the principle of keep-alive connection, that is, when at least one of the first controller and the second controller does not receive a control signal that it should process within a preset time, for example, 10s, the corresponding controller will not generate a feedback signal for a long time, and during this time period, both the first controller and the second controller may keep-alive by means of keep-alive connection. More specifically, if the first controller does not receive the control signal belonging to the first controller within 2s, the first controller generates a heartbeat data packet, the heartbeat data packet is sent to the second controller, and the second controller considers that the second controller is in a normal state after receiving the heartbeat data packet.
The foregoing is merely illustrative, and in a normal keep-alive connection, a heartbeat packet is generated in units of milliseconds, a large number of heartbeat packets are generated in a short time, the heartbeat packets occupy a large number of threads in the process of generating and transmitting, and the data volume of the heartbeat packets is also significantly larger than the feedback signal. It is additionally noted that the feedback signal generally does not contain any extra data, and the feedback signal is only a few specific bytes, such as three bytes or five bytes or ten bytes, and indicates that the event of sending the control instruction occurs, and indicates that the controller sends the control instruction, and does not indicate what type and what content of the control instruction is sent by the controller, so that the data amount of the feedback signal can be controlled to be small, and the feedback signal is generated along with the sending of the control instruction, so that no extra calculation is needed, and no special thread is needed to be occupied.
Therefore, based on the above factors, the method of the invention does not need to occupy extra threads and has small data volume.
The method adopts 2 controllers, the two controllers process control signals input by an input module matched with the sound console at the same time and share output tasks, and under normal conditions, the two controllers independently process all the control signals and generate control instructions and are respectively responsible for outputting a part of control instructions, do not interfere with each other, and only receive feedback signals of the other side and judge;
under the condition that one controller is down, the other controller decides whether to take over and output all control instructions according to whether feedback signals (the feedback signals are received but not received) or not, and the aim that one controller controls all signals temporarily can be achieved.
Example 2
Referring to fig. 2, a dual-controller-based sound mixing console data backup and switching system for implementing the method described in embodiment 1 is mainly used for a sound mixing console including an input module and a DSP processor 1; the input module is arranged on the sound console and used for inputting control signals by a control person.
The system comprises:
a first controller 2 and a second controller 3;
the first controller 2 includes:
the first signal receiving module 21: the control signals are used for receiving the input of all the input modules;
the first signal processing module 22: the control signal processing unit is used for processing the control signal to generate a control instruction, outputting part of the control instruction, generating a feedback signal after outputting part of the control instruction, and sending the feedback signal to the second controller 3;
the first feedback signal processing module 23: the first signal processing module is used for receiving the feedback signal sent by the second controller, judging whether the feedback signal is in a state that the feedback signal sent by the second controller is received but not received, and if yes, controlling the first signal processing module to output all control instructions; if not, controlling the first signal processing module to output part of the control instruction;
the second controller 3 includes:
the second signal receiving module 31: the control signals are used for receiving the input of all the input modules;
the second signal processing module 32: the control signal processing unit is used for processing the control signal to generate a control instruction, outputting the rest control instruction, generating a feedback signal after outputting the rest control instruction, and sending the feedback signal to the first controller 2;
the second feedback signal processing module 33: the second signal processing module is used for receiving the feedback signal sent by the first controller, judging whether the feedback signal is in a state that the feedback signal sent by the first controller is received but not received, and if yes, controlling the second signal processing module to output all control instructions; if not, controlling the second signal processing module to output the rest control instructions;
the first signal processing module 22 and the second signal processing module 32 are both used for processing the control signals to generate control instructions, and sending the control instructions to a DSP controller matched with the sound console;
the first signal processing module 22 and the second signal processing module 32 are further configured to send control instructions to the DSP processor 1 to generate feedback signals.
The first controller 2 and the second controller 3 both comprise a restarting module, and the restarting module is used for restarting after the first controller 2 and the second controller 3 are down, specifically, the restarting module of the first controller 2 is used for controlling the second controller 3 to restart, and vice versa.
The input modules are divided into a plurality of first input modules 4 and a plurality of second input modules 5, wherein the first input modules and the second input modules 5 are provided with unique IDs, the first signal processing modules 22 are pre-allocated with the IDs of the first input modules, and the second signal processing modules 32 are pre-allocated with the IDs of the second input modules 5;
the first signal processing module is used for outputting a control instruction corresponding to the ID of the first input module; the second signal processing module is used for outputting a control instruction corresponding to the ID of the second input module.
The working process is as follows: the first signal receiving module 21 and the second signal receiving module 31 receive control signals input by all input modules;
in a normal state, the first signal processing module 22 and the second signal processing module 32 process all control signals simultaneously to generate all control instructions, the first signal processing module 22 outputs the control instructions corresponding to the control signals containing the ID of the first input module and sends the control instructions to the DSP processor 1, meanwhile, feedback signals are generated and sent to the second controller 3, the second signal processing module 32 outputs the control instructions corresponding to the control signals containing the ID of the second input module and sends the control instructions to the DSP processor 1, and meanwhile, feedback signals are generated and sent to the first controller 2;
in the case of abnormality, if the first controller 2 is abnormal, the second signal processing module 32 processes the control signal containing the ID of the first input module, the control signal containing the ID of the second input module 5, and generates a control instruction to be sent to the DSP processor 1, and simultaneously generates a feedback signal to be sent to the first controller 2;
if the second controller 3 is abnormal, the first signal processing module 22 processes the control signal containing the ID of the first input module and the control signal containing the ID of the second input module 5, generates a control instruction and sends the control instruction to the DSP processor 1, and simultaneously generates a feedback signal and sends the feedback signal to the second controller 3;
the first feedback signal processing module 23 and the second feedback signal processing module 33 determine whether or not a certain controller is normal or abnormal.
After each controller is down, the restarting module of the other controller is responsible for restarting the controller.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (3)
1. A sound mixing console data backup and switching method based on double controllers is characterized in that the method relates to a sound mixing console, a first controller and a second controller; the sound console is matched with a plurality of input modules for a control person to input control signals;
the method comprises the following steps:
step 1: the first controller and the second controller both receive control signals input by all input modules;
step 2: the first controller and the second controller process all control signals to obtain control instructions;
the first controller outputs part of the control instructions, generates feedback signals and sends the feedback signals to the second controller;
the second controller outputs the residual control instruction, generates a feedback signal and sends the feedback signal to the first controller;
step 3: if the first controller or the second controller should receive but not receive the feedback signal sent by the other party, the first controller or the second controller outputs all control instructions;
the system also comprises a DSP processor, wherein the first controller and the second controller process the control signals to generate control instructions and send the control instructions to the DSP processor; the feedback signal is generated after the first controller and the second controller send control instructions to the DSP processor;
the step 3 specifically comprises the following steps:
step 31: if the first controller or the second controller receives the control signal which is not in charge of processing and outputting, waiting for the other side to send a feedback signal;
step 32: if the feedback signal is not received, judging that the other party is down, and outputting all control instructions by the first controller or the second controller;
further comprises:
step 4: the first controller or the second controller which is not in downtime sends a restarting instruction to restart the first controller or the second controller which is in downtime;
step 5: after receiving the control signals which belong to the processing and output of the first controller or the second controller which is successfully restarted, processing all the control signals and outputting control instructions which belong to the output of the first controller or the second controller, and generating feedback signals and sending the feedback signals to the other side;
and after the first controller and the second controller can both receive feedback signals of the other side, the first controller and the second controller work according to the step 1 and the step 2.
2. The dual-controller-based sound mixing console data backup and switching method of claim 1, wherein the input modules comprise a plurality of first input modules and a plurality of second input modules, and the first input modules and the second input modules have unique IDs; the control signals generated by the first input module and the second input module contain respective IDs;
in step 2, the first controller is responsible for processing all control signals and outputting control instructions corresponding to the control signals containing the ID of the first input module; the second controller is responsible for processing all control signals and outputting control instructions corresponding to the control signals containing the ID of the second input module;
in step 3, the first controller or the second controller that is not down is responsible for processing all control signals and outputting all control instructions.
3. The dual-controller-based sound mixing console data backup and switching method of claim 1, wherein the input module comprises one or more of a key, a push-button and a knob used with the sound mixing console; analog signals generated by the input module are sent to the corresponding first controller and second controller after analog-to-digital conversion.
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| CN106648997A (en) * | 2016-12-23 | 2017-05-10 | 北京航天测控技术有限公司 | Master-salve switching method based on non-real-time operating system |
| CN107786284B (en) * | 2017-10-25 | 2020-09-01 | 北京奥特维科技有限公司 | Audio transmission system and method with multi-stage cross backup architecture |
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