CN212305641U - Intelligent central control system - Google Patents

Abstract

The utility model provides an intelligent central control system, which comprises a power module, a gateway module, a network module and an interface module; the power supply module is respectively in power supply connection with the gateway module, the network module and the interface module; the gateway module is in communication connection with the network module and is in remote communication with an external server through the network module; the interface module is in communication connection with the gateway module and is used for accessing multimedia equipment; the interface module includes an audio front-end. The audio frequency prepositioner comprises a sound processing circuit and a controller; the sound processing circuit comprises an audio processing circuit, a plurality of microphone processing circuits and a sound mixing circuit.

Description

Intelligent central control system

Technical Field

The utility model relates to a multimedia device field especially relates to an intelligent center control system.

Background

With the continuous development of scientific technology, the application of multimedia technology in teaching, meeting and entertainment is more and more extensive, so that a plurality of multimedia devices can be organically unified together, and the harmonious and orderly progress of the teaching or meeting is realized. For example, a multimedia central control system is used for orderly controlling a PC, a projector, a curtain, a sound and the like in a multimedia classroom or a multimedia conference room, so that the flow requirements of teaching or a conference are met. However, the multimedia center control system in the related art generally can only control local multimedia devices, cannot be connected to a network, and cannot realize the combination of stand-alone operation, remote monitoring and remote management.

SUMMERY OF THE UTILITY MODEL

For at least solving in the correlation technique because of the unable problem that combines together with remote monitoring and remote management of the unable stand-alone operation that causes multimedia center control system with internet access of multimedia center control system, the utility model provides an intelligence center control system.

The utility model provides an intelligent central control system, which comprises a power module, a gateway module, a network module and an interface module; the power supply module is respectively in power supply connection with the gateway module, the network module and the interface module; the gateway module is in communication connection with the network module and is in remote communication with an external server through the network module; the interface module is in communication connection with the gateway module and is used for accessing multimedia equipment; the interface module comprises an audio pre-amplifier;

the audio frequency prepositioner comprises a sound processing circuit and a controller; the sound processing circuit comprises an audio processing circuit, a plurality of microphone processing circuits and a sound mixing circuit;

the audio processing circuit comprises a plurality of audio input interfaces, a plurality of first pre-stage operational amplifier circuits and an audio effect processor; the output ends of different audio input interfaces are in communication connection with the audio sound effect processor through different first pre-stage operational amplifier circuits;

each microphone processing circuit comprises a microphone input interface, a second pre-stage operational amplifier circuit and a microphone sound effect processor; the output end of the microphone input interface is in communication connection with the microphone sound effect processor through a second pre-stage operational amplifier circuit;

the input end of the sound mixing circuit is respectively connected with the audio sound effect processor and the sound output end of each microphone sound effect processor, and the output end of the sound mixing circuit is led out to form a plurality of audio output interfaces;

the controller is respectively in communication connection with the gateway module, the audio effect processor and each microphone effect processor and is used for receiving a sound adjusting signal or an audio switching signal sent by the gateway module, sending a control signal for adjusting sound frequency and/or volume to the audio effect processor and/or the microphone effect processor according to the sound adjusting signal or sending a control signal for switching an audio signal output by the audio effect processor to the audio effect processor according to the audio switching signal; the audio signal output by the audio sound effect processor is one of the audio signals accessed by the plurality of audio input interfaces.

Through the technical scheme, the utility model discloses at least, include following beneficial technological effect:

the utility model discloses a network module can realize that gateway module and external server carry out remote communication, therefore, on the one hand, gateway module can realize the control to power module and interface module according to the information realization that external server conveys, for example, when gateway module receives the volume control signal that external server sent, can realize the regulation to the volume of the audio frequency of output through inputting corresponding volume control signal to corresponding audio processor; on the other hand, the gateway module can also transmit the working information of the power module, the network module and the interface module to an external server, so that the monitoring and the management of related personnel on the intelligent central control system are facilitated. In addition, the utility model adopts the audio frequency prepositioner in the technical proposal, on the first hand, the audio frequency of one multimedia device can be transmitted to the audio frequency of another multimedia device, thereby facilitating the exchange of audio frequency signals between the multimedia devices; in the second aspect, the controller controls each sound effect processor according to the signal sent by the gateway module to realize the adjustment of sound frequency or volume, which is beneficial to reducing the workload of the gateway module; in the third aspect, in the audio processing circuit, by introducing the outputs of all the audio input interfaces into the same audio processor, the source of the finally output audio signal can be switched by only applying one audio processor, so that the switching of the audio signal is convenient, one multimedia device can receive the audio signals from different multimedia devices, and meanwhile, the reduction of the number of devices is facilitated, the circuit structure of the audio pre-processor is simplified, and the occupied space of the audio pre-processor is reduced; in the fourth aspect, in the audio processing circuit and the microphone processing circuit, before the audio signal or the microphone signal is input to the corresponding sound effect processor, the audio signal or the microphone signal is processed by the operational amplifier circuit, which is beneficial to ensuring the quality of the finally output audio signal or the microphone signal.

Optionally, the audio processing circuit further includes a first post-stage operational amplifier circuit; the sound output end of the audio sound effect processor is connected to the input end of the sound mixing circuit through the first rear-stage operational amplifier circuit; and/or

Each microphone processing circuit also comprises a second post-stage operational amplifier circuit; and the sound output end of each microphone sound effect processor is connected to the input end of the sound mixing circuit through a second rear-stage operational amplifier circuit.

The operational amplifier circuit is added behind the sound effect processor of the audio processing circuit and the microphone processing circuit, so that the audio signal processed by the sound effect processor or the microphone signal is output after being processed by the operational amplifier circuit, and the quality of the finally output audio signal or microphone signal can be further improved.

Optionally, the intelligent central control system further comprises a distributed power supply for providing 220V ac power; the distributed power supply comprises a plurality of relays, a plurality of on-off control modules and a power supply controller; the input ends of different relays are used for connecting commercial power through different on-off control modules, and the output ends of the different relays are led out to a socket; the power supply controller is respectively in communication connection with the gateway module and the on-off control modules so as to control the corresponding relays to be switched on or off through the on-off control modules according to power supply on-off signals sent by the gateway module; the power on/off signal comprises at least one of the following: the on-off control module is used for indicating the on-off of the specified on-off control module and the off-off signal is used for indicating the off-off of the specified on-off control module.

By additionally arranging the distributed power supply, the power supply can supply power for equipment with a 220V alternating current working power supply, such as a projection curtain, a computer, a projector and multimedia equipment, so that the problem that the flow of a conference or teaching or entertainment is forced to be interrupted due to the fact that a socket needs to be found or cannot be found due to insufficient power supply of the equipment is effectively avoided, and the use experience of a user is improved. On one hand, the power consumption requirements of a plurality of devices can be met by arranging a plurality of relays and configuring a socket for each relay; on the other hand, through setting up the power supply controller and all disposing the on-off control module for every relay, can realize that the gateway module manages the power consumption in every socket effectively, for example, under the condition that has not passed the permission, can understand when not receiving the turn-on signal, do not switch on the on-off control module, at this moment, even if the plug of external equipment inserts in the socket, the socket does not output power yet, thereby not only can avoid unauthorized personnel to abuse distributed power at will, guarantee distributed power's reasonable use, but also can avoid children to insert the safety accident that the finger or pass through electric conductivity object and arouse into the socket by accident to take place, guarantee distributed power's safety in utilization.

Optionally, the intelligent central control system further comprises a wiring terminal connector; the power supply module comprises a first direct current power supply module and a second direct current power supply module which have different output voltages; the first direct current power supply module is in power supply connection with the audio frequency front-end device; the second direct-current power supply module is in power supply connection with the gateway module; the input end of the wiring terminal connector is led out to form a power connection interface for connecting with a mains supply, and the output end of the wiring terminal connector at least comprises 3 output terminals which are respectively connected with the first direct-current power supply module, the second direct-current power supply module and the power supply connecting end of the distributed power supply.

Divide into 3 ways of outputs with the commercial power of the same kind through utilizing binding post connector, provide the power for first DC power module, second DC power module and distributed power respectively, be favorable to avoiding the wiring too much and the confusion that produces for it is more reasonable succinct to lay wire, reduces wiring occupation space.

Optionally, the intelligent central control system further comprises an operation panel and/or a touch screen; and the operation panel and/or the touch screen are in communication connection with the gateway module.

By additionally arranging the operation panel and/or the touch screen, a local user can directly use the intelligent central control system through the operation panel and/or the touch screen, so that the intelligent central control system can be locally used on the basis of remotely using the intelligent central control system, and more use requirements of the user can be met.

Optionally, the intelligent central control system further comprises a housing and two members respectively mounted on two opposite sides of the outer surface of the housing;

the shell is provided with a plurality of openings; the power module, the gateway module, the network module and the interface module are arranged in the shell, and the power connection end of the power module, the network interface of the network module and the interface end of the interface module are arranged in different openings;

any component comprises a fixed part, a handle part and an installation part which are respectively connected with the fixed part; any one of the members is mounted to the housing through the fixing portion thereof; the installation department is used for the outside rack or the outside mounting bracket cooperation that fixed casing was used to realize that the casing is fixed in outside rack or outside mounting bracket.

The protection to power module, gateway module, network module and interface template can be realized through the casing, avoids above-mentioned each module to leak outward and the phenomenon of getting damp or laying dust or electric leakage appears, guarantees the installation of each module and uses, also conveniently transports whole intelligent center control system, avoids spare part to scatter in the transportation. The two components are arranged on the outer surface of the shell, and each component comprises a handle part, so that a user or a transporter can lift or lift the whole intelligent central control system by holding the handle part, and the user or the transporter can transport the central control system conveniently; in addition, each component comprises an installation part, so that the central control system can be conveniently installed and fixed.

Optionally, the fixing portion, the handle portion and the mounting portion of any one of the components are integrally formed by a cross-sectional I-shaped panel; wherein, the installation department by the local plate body of panel surface one side is followed and is formed towards the direction bending type of perpendicular to panel with the coplanar direction of panel, the handle portion by in the panel by the vacation space that local plate body formed after buckling and the plate body around the vacation space form, the fixed part by the plate body of panel surface opposite side forms.

The fixing part, the handle part and the mounting part of any component are integrally formed by a I-shaped panel, so that the stability and the strength of the fixing part, the handle part and the mounting part can be ensured, and the material and the manufacturing cost can be saved; through the formation structure of fixed part, handle portion and installation department in the limited component, be favorable to sparingly making the flow and reducing the manufacturing degree of difficulty.

Optionally, the intelligent central control system further comprises a partition plate; the partition board is arranged in the shell and is used for dividing the local space of the shell into a plurality of partition layers along the height direction of the shell; and/or

The periphery of the empty space is bent towards the direction vertical to the panel to form a flanging.

Through set up the baffle of a plurality of interlayers of local space edge casing height division of casing in the casing, can realize the layering installation of a plurality of modules, be favorable to reducing the module to the occupation of casing width or the ascending space of length direction, and then reduce casing area occupied, under the less condition of bottom surface area of placing the space from this, intelligent center control system also can place into, reduces the area user demand of intelligent center control system to the installation environment. The periphery of the space is vacated through flanging, so that the part of the lifting handle part, which is in contact with the human hand, is smooth, and the human hand is prevented from being damaged by burrs; meanwhile, the effective area of the part of the handle part, which is in contact with the hands of a person, is increased, so that the comfort of holding the handle part by the hands of the person is improved.

Optionally, the intelligent central control system further comprises a temperature and humidity sensor arranged in the housing; the temperature and humidity sensor is in communication connection with the gateway module and used for monitoring the temperature and humidity in the shell and sending a temperature and humidity signal obtained through monitoring to the gateway module; when receiving the temperature and humidity signals, the gateway module sends the temperature and humidity signals to an external server or adjusts the working state of at least one of the power module, the network module and the interface module according to the temperature and humidity signals; or

The intelligent central control system also comprises a temperature and humidity sensor and a fan which are arranged in the shell; the temperature and humidity sensor and the fan are respectively in communication connection with the gateway module; the temperature and humidity sensor is used for monitoring the temperature and humidity in the shell and sending a temperature and humidity signal obtained by monitoring to the gateway module; when the gateway module receives the temperature and humidity signals, the gateway module sends the temperature and humidity signals to an external server or adjusts the working state of at least one of the power module, the network module, the interface module and the fan according to the temperature and humidity signals.

Temperature and humidity in the shell are monitored through the temperature and humidity sensor additionally provided with humidity, signals obtained through monitoring are sent to the external server through the gateway module, related personnel can know the environment state of the central control system at any time, and some adjustment strategies are sent to the gateway module through the external server, so that the gateway module can control the working state of other modules according to the received adjustment strategies, and the condition that the temperature and the humidity of the whole machine are too high or too heavy is avoided. In addition, on the basis of the temperature and humidity sensor, the fan is additionally arranged, so that when the humidity or the temperature is too high, the gateway module can immediately control the fan to operate or operate at the highest wind speed gear, and the humidity and the temperature in the shell are reduced. Therefore, the service life of the central control system can be prolonged, and the central control system is favorable for avoiding faults due to temperature and humidity factors.

Optionally, the gateway module is an RS485 gateway; and/or, the network module comprises at least one of: the system comprises a switch, a wifi module and a GSM module; and/or the interface module also comprises a plurality of VGA input interfaces, a plurality of VGA output interfaces, a plurality of HDMI input interfaces and a plurality of HDMI output interfaces which are all in communication connection with the gateway module; and/or, audio frequency audio effect treater and each microphone audio effect treater are the sound effect chip of ET2354 model.

Drawings

Fig. 1 is a block diagram illustrating an intelligent central control system according to an exemplary embodiment of the present invention;

fig. 2 is a block diagram illustrating an audio pre-stage according to an exemplary embodiment of the present invention;

fig. 3 is a block diagram of another audio pre-stage according to an exemplary embodiment of the present invention;

fig. 4 is a block diagram of a distributed power supply according to an exemplary embodiment of the present invention;

fig. 5 is an external schematic structural diagram of an intelligent central control system according to an exemplary embodiment of the present invention;

FIG. 6 is a schematic structural view of a component shown in accordance with an exemplary embodiment of the present invention;

fig. 7 is a schematic structural view of a bottom case according to an exemplary embodiment of the present invention;

fig. 8 is a schematic structural view of a rear cover according to an exemplary embodiment of the present invention;

fig. 9 is a schematic structural diagram of a front cover according to an exemplary embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The following description refers to the accompanying drawings, in which like reference numerals refer to the same or similar elements throughout the different views, unless otherwise specified. It is to be understood that the described embodiments are merely examples of some, but not all embodiments of the disclosure, which are consistent with certain aspects of the invention, as detailed in the following claims. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the scope of protection of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item appearing before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The singular forms "a", "an", and "the" may include plural referents unless the context clearly dictates otherwise. "and/or" means any and all possible combinations of one or more of the associated listed items.

The problem that the single machine operation of the multimedia central control system can not be combined with remote monitoring and remote management because the multimedia central control system can not be connected with the network in the related technology is at least solved. The utility model provides an intelligent central control system, realize through the network module that gateway module and external server carry out remote communication, therefore, on the one hand, the gateway module can realize the control to power module and interface module according to the information of external server conveying, for example, when the gateway module receives the volume control signal that external server sent, can realize the regulation to the volume of the audio of output through inputting corresponding volume control signal to corresponding audio processor; on the other hand, the gateway module can also transmit the working information of the power module, the network module and the interface module to an external server, so that the monitoring and the management of related personnel on the intelligent central control system are facilitated. In addition, the utility model discloses an audio frequency leading ware of independently researching and developing, on the first aspect, can realize transmitting the audio frequency of a multimedia device to the audio frequency of another multimedia device, make things convenient for the exchange of audio signal between the multimedia device; in the second aspect, the controller controls each sound effect processor according to the signal sent by the gateway module to realize the adjustment of sound frequency or volume, which is beneficial to reducing the workload of the gateway module; in the third aspect, in the audio processing circuit, by introducing the outputs of all the audio input interfaces into the same audio processor, the source of the finally output audio signal can be switched by only applying one audio processor, so that the switching of the audio signal is convenient, one multimedia device can receive the audio signals from different multimedia devices, and meanwhile, the reduction of the number of devices is facilitated, the circuit structure of the audio pre-processor is simplified, and the occupied space of the audio pre-processor is reduced; in the fourth aspect, in the audio processing circuit and the microphone processing circuit, before the audio signal or the microphone signal is input to the corresponding sound effect processor, the audio signal or the microphone signal is processed by the operational amplifier circuit, which is beneficial to ensuring the quality of the finally output audio signal or the microphone signal.

The following explains the intelligent center control system provided by the present invention.

The intelligent central control system can be applied to teaching, meetings or entertainment and is used for organically unifying a plurality of multimedia devices together and realizing harmonious and orderly progress of the teaching or the meetings. As shown in fig. 1, the intelligent center control system includes a power module 011, a gateway module 012, a network module 014, and an interface module 013. The power module 011 is respectively connected with the gateway module 012, the network module 014 and the interface module 013 through power supply. The gateway module 012 is in communication connection with the network module 014, and performs remote communication with an external server through the network module 014. The interface module 013 is in communication connection with the gateway module 012 and is used for accessing multimedia devices.

An application scenario of the intelligent central control system in the embodiment is illustrated as follows:

when the intelligent central control system is applied to a conference room, assuming that video data on a certain multimedia device needs to be played through a projection curtain in the conference room, a video output interface of the multimedia device can be connected with a video input interface of the intelligent central control system, and a video input interface of a projector of the projection curtain is connected with a video output interface of the intelligent central control system. Therefore, the intelligent central control system can transmit the video data of the multimedia equipment to the projector and project the video data to the projection curtain by the projector for displaying. Wherein, if the gateway module 012 is connected to the network module 014 and receives a video playing command sent by an external server, for example, commands such as pause video playing, double-speed playing video, stop video playing, close video or continue playing video, the gateway module 012 controls the video playing situation according to the currently received video playing command, and the specific control process please refer to the related art. In addition, the gateway module 012 can receive an instruction sent by the external server, and can also send the video playing situation, for example, at least one of the video duration, the video remaining duration, the video playing error, the video playing normal, and the like, to the external server, so that the relevant personnel can know the video playing situation through the information uploaded to the external server by the gateway module 012 and manage the video playing situation as needed. The relevant personnel can directly know the working condition of the intelligent center control system through the data uploaded by the gateway module 012 displayed on the display screen matched with the external server, and can also send instructions to the gateway module 012 through the external server to realize the management of the intelligent center control system. Or the working condition of the intelligent central control system can be solved through relevant data received in an application program which is installed on the terminal equipment bound with the intelligent central control system and is connected with an external server; the application program may also be used to send instructions to the gateway module 012 through an external server to implement management of the intelligent central control system. The utility model discloses do not prescribe a limit to this.

In the foregoing, the operating conditions of the intelligent central control system may include: whether multimedia equipment is accessed, which interface is accessed to the multimedia equipment, multimedia data, playing control of the multimedia data and the working state of each module in the intelligent central control system.

In one embodiment, the gateway module 012 may be, but is not limited to: and an RS485 gateway.

In one embodiment, the network module 014 may include at least one of: the system comprises a switch, a wifi module and a GSM module; but is not limited thereto. In this embodiment, in order to reduce the manufacturing cost of the intelligent center control system and the volume and weight of the whole system, the network module 014 is a switch. Based on this, the gateway module 012 is communicatively connected to the switch through a network cable, and the switch can access an external network through the network cable, thereby implementing communication between the gateway module 012 and an external server.

In an embodiment, the interface module 013 may include, but is not limited to, VGA input interfaces, VGA output interfaces, HDMI input interfaces, and HDMI output interfaces, all of which are communicatively connected to the gateway module 012. On the basis, in order to reduce the number of connections required for all the interfaces to communicate with the gateway module 012, simplify the connection layout, and solve the problems of confusion, inconvenience for subsequent maintenance, and excessive occupied space due to excessive connections, in another embodiment, all the interfaces are communicatively connected with the gateway module 012 through the same serial bus; for example, when the gateway module 012 is an RS485 gateway, the serial bus may be an RS485 serial bus.

In one embodiment, 4 VGA input interfaces can be provided, and 2 VGA output interfaces can be provided; the number of the HDMI input interfaces may be 4, and the number of the HDMI output interfaces may be 2, but is not limited thereto.

In one embodiment, the interface module 013 can include an audio pre-operative. As shown in fig. 2, the audio front-end includes a sound processing circuit and a controller; the sound processing circuit comprises an audio processing circuit, a plurality of microphone processing circuits and a sound mixing circuit.

The audio processing circuit is used for processing and transmitting audio signals input by the multimedia equipment and comprises a plurality of audio input interfaces, a plurality of first pre-stage operational amplifier circuits and an audio effect processor. The output ends of different audio input interfaces are in communication connection with the audio sound effect processor through different first pre-stage operational amplifier circuits.

Microphone processing circuit is used for realizing handling and transmitting the microphone signal of microphone input, and every microphone processing circuit all includes microphone input interface, second preceding stage operational amplifier circuit and microphone audio processor. The output end of the microphone input interface is in communication connection with the microphone sound effect processor through a second preceding stage operational amplifier circuit.

The sound mixing circuit is used for mixing the audio signal finally output by the audio processing circuit and the microphone signal finally output by the microphone processing circuit, and outputting the mixed sound signal. The input end of the sound mixing circuit is respectively connected with the sound output ends of the audio sound processor and the microphone sound processors, and the output end of the sound mixing circuit is led out to form a plurality of audio output interfaces.

The controller is connected with gateway module 012, audio frequency audio effect treater and each microphone audio effect treater communication respectively for receive the sound control signal or the audio frequency switching signal that gateway module 012 sent, with the basis the sound control signal sends the control signal who is used for adjusting sound frequency and/or volume to audio frequency audio effect treater and/or microphone audio effect treater, or the basis audio frequency switching signal sends the control signal who is used for switching the audio signal of audio frequency audio effect treater output to audio frequency audio effect treater. The audio signal output by the audio sound effect processor is one of the audio signals accessed by the plurality of audio input interfaces.

Therefore, in the embodiment, although the audio processing circuit can access a plurality of audio signals, only one audio signal is selected to be output finally, which is equivalent to an audio processing circuit with a plurality of input 1-way outputs.

The working principle of the audio pre-stage is explained as follows:

when an audio signal on the multimedia device needs to be input into the audio pre-amplifier, an audio output interface of the multimedia device can be connected with a free audio input interface in the audio pre-amplifier through an audio data line; when a microphone signal collected by a microphone needs to be input into the audio frequency prepositioner, an audio frequency output interface of the microphone can be connected with a microphone input interface which is controlled to be idle in the audio frequency prepositioner through a microphone data line; in addition, it is also necessary to connect the audio output interface of the audio pre-stage with the audio input interface of other multimedia devices, which are required to be applied to the finally output sound signal, through the audio data line.

After the connection is completed according to the wiring description, if only one interface of each input interface of the audio frequency prepositive device is connected with a corresponding signal, the connected signal is processed by a corresponding circuit and a sound effect processor and then is output to an audio frequency output interface through a sound mixing circuit. Herein, if the controller receives the sound adjusting signal sent by the gateway module 012, the controller sends a control signal for adjusting the frequency and/or volume of sound to the corresponding audio effect processor or microphone effect processor according to the sound adjusting signal, so as to adjust the frequency or volume of the audio signal or microphone signal output by the audio effect processor. The specific frequency and volume adjustment principle can be referred to in the related art, and the present invention does not improve the related art, so that the detailed description is omitted here.

If two or more interfaces of the plurality of audio input interfaces of the audio front-end device access audio signals, the accessed signals are input to the audio effect processor through the corresponding first preamplifier circuits, and the audio effect processor determines the current audio signal to be output as the signal of the audio input interface based on a control signal generated by the controller according to the audio switching signal sent by the gateway module 012, and selects the determined audio signal to output. If the audio sound effect processor does not receive the control signal sent by the controller, the originally output audio signal is output or the default output audio signal is output. If a microphone signal is input through the microphone input interface, the microphone signal is input into the sound mixing circuit through the second pre-stage operational amplifier circuit and the microphone sound effect processor. The sound mixing circuit mixes the input signals and outputs the mixed sound signal through the audio output interface. The adjustment manner of the volume or the frequency can be referred to the description in the previous paragraph, and is not described herein again.

In the aforesaid, arbitrary preceding stage fortune is amplified circuit and can is used for the audio frequency amplifier circuit who is arranged in handling sound signal among the correlation technique for use, and sound hybrid circuit can be selected for use the audio frequency hybrid circuit or the device that are arranged in mixing sound signal among the correlation technique, the utility model discloses do not inject this.

In one embodiment, the audio effect processor and each microphone audio effect processor may each be an ET2354 type audio effect chip.

In an embodiment, in order to quickly know which audio input interface of the audio pre-pad has the multimedia device access, the audio pre-pad may further include an insertion detection circuit, where the insertion detection circuit is configured to detect whether a data line connector is inserted into each audio input interface, and send an insertion detection signal obtained through detection to the controller. When receiving the insertion detection signal, the controller determines the audio input interface into which the data line connector is inserted according to the insertion detection signal, records the number information of the determined audio input interface, and transmits the number information to the gateway module 012. The gateway module 012 can send the number information of the audio input interface sent by the controller to an external server, and the external server can analyze the number information to obtain the information of the corresponding audio input interface and/or the accessed multimedia device, and display the information on a display screen matched with the external server, or send the information to a terminal device bound with the intelligent central control system. The information of the multimedia device may include, but is not limited to: the model of the multimedia device, the name of the user to which the multimedia device is bound. Therefore, related users can quickly know which audio input interface of the audio prepositioner is connected with the multimedia equipment and the information of the multimedia equipment, and the users can conveniently switch and control the audio signals subsequently. Wherein the insertion detection circuit is available from the related art and will not be described in detail herein.

In order to further improve the quality of the finally output audio signal or microphone signal, in an embodiment, as shown in fig. 3, the audio processing circuit further includes a first post-stage operational amplifier circuit; the sound output end of the audio sound effect processor is connected to the input end of the sound mixing circuit through the first rear-stage operational amplifier circuit; and/or each microphone processing circuit also comprises a second post-stage operational amplifier circuit; and the sound output end of each microphone sound effect processor is connected to the input end of the sound mixing circuit through a second rear-stage operational amplifier circuit.

In a similar way, any post operational amplifier circuit can choose the audio amplifier circuit who is used for handling sound signal among the correlation technique for use, the utility model discloses do not prescribe a limit to this.

In order to reduce the number of wires required for all the sound effect processors in the audio frequency prepositioner to be in communication connection with the controller, simplify the wiring layout and solve the problems of confusion, inconvenience for subsequent maintenance and excessive occupied space caused by excessive wires, in one embodiment, all the sound effect processors are in communication connection with the controller through the same serial bus; the serial bus may be, but is not limited to, an I2C bus.

In one embodiment, the controller may be communicatively connected to the gateway module 012 through a gateway bus, for example, when the gateway module 012 is an RS485 gateway, the controller may be communicatively connected to the RS485 gateway through an RS485 serial bus. In order to realize the connection between the controller and the gateway bus, a UART (Universal asynchronous receiver Transmitter/Transmitter) may be used as a bridge for connecting the controller and the gateway bus.

In one embodiment, the controller may be a single chip microcomputer. The type of the singlechip can be any type.

In one embodiment, there may be 4 audio input interfaces, two microphone input interfaces, and 2 audio output interfaces, but not limited thereto.

In order to supply power to a plurality of multimedia devices and ensure the safety of power utilization, in an embodiment, the intelligent central control system further comprises a distributed power supply for providing 220V alternating current. As shown in fig. 4, the distributed power supply includes a plurality of relays, a plurality of on-off control modules, and a power supply controller. The input ends of different relays are used for connecting commercial power through different on-off control modules, and the output ends of the different relays are led out to a socket; the power supply controller is respectively in communication connection with the gateway module 012 and the on-off control modules, so as to control the corresponding relays to be switched on or off through the on-off control modules according to the power on-off signals sent by the gateway module 012; the power on/off signal comprises at least one of the following: the on-off control module is used for indicating the on-off of the specified on-off control module and the off-off signal is used for indicating the off-off of the specified on-off control module.

Wherein, the power supply controller can be a singlechip. The type of the singlechip can be any type.

In one embodiment, if there is a need to save space occupied by devices and cost of devices, the power supply controller and the controller may be the same control device, which may be understood as: the functions of the power supply controller and the controller can be simultaneously realized by one single chip microcomputer.

The on-off control module may be an on-off circuit or an on-off device for controlling an on-off state of a relay in the related art, and will not be described in detail herein.

Therefore, the power supply can supply power for equipment with 220V alternating current as a working power supply, such as a projection curtain, a computer, a projector and multimedia equipment, the problem that the flow of a conference or teaching or entertainment is forced to be interrupted due to the fact that a socket needs to be found or cannot be found due to insufficient power supply of the equipment is effectively avoided, and the use experience of a user is improved. On one hand, the power consumption requirements of a plurality of devices can be met by arranging a plurality of relays and configuring a socket for each relay; on the other hand, by setting the power supply controller and configuring the on-off control module for each relay, the gateway module 012 can effectively manage the power consumption in each socket, for example, under the condition that the power supply controller is not allowed to receive the on-off control module, the power supply controller can be understood as not turning on the on-off control module when not receiving the on-off signal, at this time, even if the plug of the external device is inserted into the socket, the socket does not output the power supply, thereby not only avoiding that unauthorized persons abuse the distributed power supply at will and ensuring the reasonable use of the distributed power supply, but also avoiding the occurrence of safety accidents caused by that children accidentally insert fingers or objects through conductivity into the socket, and ensuring the use safety of the distributed power supply.

Because the working voltages of the audio front-end device, any VGA input interface, any VGA output interface, any HDMI input interface, and any HDMI output interface are the same, but different from the working voltage of the gateway module 012, in order to ensure that devices with different working voltages can work normally, in an embodiment, the power module 011 includes a plurality of dc power modules with different output voltages. In order to avoid the configuration of too many dc power modules 011, which results in an excessively large occupied space and a high manufacturing cost, in this embodiment, the power modules 011 include a first dc power module and a second dc power module; the first direct-current power supply module is used for outputting a 12V direct-current power supply, and the second direct-current power supply module is used for outputting a 24V direct-current power supply. The first direct current power supply module is used for providing working power supply for the audio frequency prepositive device, any VGA input interface, any VGA output interface, any HDMI input interface and any HDMI output interface. The second dc power supply module is used to provide a working power supply for the gateway module 012. For devices with smaller working voltage, such as switches, controllers or power supply controllers with 5V dc working power supplies, the voltage reduction circuit may be used to reduce the voltage of the first dc power supply or the second dc power supply or convert the first dc power supply or the second dc power supply into a 5V dc power supply. The voltage reduction circuit is available from the related art and will not be described in detail here. However, in another embodiment, the power module 011 can further include a third dc power supply outputting 5V dc power; at this time, the step-down circuit is not required, but may be left.

The distributed power supply and power supply module 011 is arranged on the basis of an intelligent central control system, and comprises a plurality of direct-current power supplies, so that the chaos caused by excessive wiring is avoided, the wiring is more reasonable and simpler, and the wiring occupied space is reduced. The input end of the wiring terminal connector is led out to form a power connection interface for connecting with a mains supply, and the output end of the wiring terminal connector at least comprises 3 output terminals which are respectively connected with the first direct-current power supply module, the second direct-current power supply module and the power supply connecting end of the distributed power supply. From this, divide into 3 way outputs through utilizing binding post connector with the commercial power of the same kind, provide the power for first DC power module, second DC power module and distributed power respectively, be favorable to avoiding the wiring too much and the confusion that produces for it is more reasonable succinct to lay wire, reduces wiring occupation space.

In one embodiment, the terminal connector may be any one of: a fixed type over-current wiring terminal and a 3-bit wiring row distribution box connector; but is not limited thereto.

In one embodiment, the intelligent central control system further comprises an operation panel and/or a touch screen; the operation panel and/or the touch screen are connected to the gateway module 012 in communication. The touch screen is provided with a human-computer interaction interface. Therefore, a human-computer interaction interface displayed on the operation panel or the touch screen may send an instruction to the gateway module 012, for example, to switch an output audio line, adjust the frequency and/or volume of a finally output sound signal, and control a relay corresponding to a certain socket to be turned on or off, so that a local user may directly use the intelligent center control system through the operation panel and/or the touch screen.

In one embodiment, as shown in fig. 5, the intelligent central control system further includes a housing 51, and two members (521 and 522) respectively mounted on two opposite sides of the outer surface of the housing 51.

The shell 51 is provided with a plurality of openings; the power module 011, the gateway module 012, the network module 014 and the interface module 013 are all disposed in the housing 51, and the electrical terminals of the power module 011, the network interfaces of the network module 014 and the interface terminals of the interface module 013 are disposed in different openings.

Any one of the members includes a fixing portion 5211, a handle portion 5212 and a mounting portion 5213 connected to the fixing portion 5211, respectively. Either member is mounted to the housing 51 through the fixing portion 5211 thereof; the mounting portion 5213 is configured to mate with an external cabinet or external mounting bracket for securing the housing 51 to the external cabinet or external mounting bracket.

From this, can realize the protection to power module 011, gateway module 012, network module 014 and interface template through casing 51, avoid above-mentioned each module to leak outward and appear getting damp or deposition or electric leakage phenomenon, guarantee the installation of each module and use, also conveniently transport whole intelligent center control system, avoid spare part to scatter in the transportation. By arranging two members on the outer surface of the shell 51, each member comprises a handle part 5212, so that a user or a transporter can lift or lift the whole intelligent central control system by holding the handle parts 5212, and the user or the transporter can transport the central control system conveniently; in addition, by including the mounting portion 5213 for each member, the mounting and fixing of the center control system can be facilitated.

In order to save the manufacturing process of the component, reduce the manufacturing difficulty of the component, and enhance the toughness of the component, in one embodiment, as shown in fig. 6, the fixing portion 5211, the handle portion 5212, and the mounting portion 5213 of any component are integrally formed by a cross-sectional i-shaped panel; the mounting portion 5213 is formed by bending a local plate body on one side of the panel surface from a direction coplanar with the panel to a direction perpendicular to the panel, the handle portion 5212 is formed by an empty space B formed by bending the local plate body in the panel and a plate body around the empty space B, and the fixing portion 5211 is formed by a plate body on the other side of the panel surface.

Based on the previous embodiment, in order to make the contact part of the handle part 5212 with the human hand smoother, the human hand is prevented from being damaged by burrs; while increasing the effective area of the handle portion 5212 that is in contact with the human hand and improving the comfort of the human hand holding the handle portion 5212, in one embodiment, the periphery of the empty space B is rounded to form a smooth surface, and/or the periphery of the empty space B is bent in a direction perpendicular to the panel to form a flange 52121, as shown in fig. 6.

In one embodiment, the fixing portion 5211 and the handle portion 5212 are coplanar, and the mounting portion 5213 is perpendicular to the plane of the fixing portion 5211 and the handle portion 5212.

In an embodiment, the fixing portion 5211 and the mounting portion 5213 are respectively provided with a plurality of through holes, so that when the fixing portion 5211 is mounted on the housing 51 by a fastener penetrating through the through holes, and the mounting portion 5213 is mounted on an external cabinet or a mounting rack by a fastener penetrating through the through holes. The mounting of the mounting portion 5213 and the fixing portion 5211 may be achieved without providing a through hole, for example, the fixing portion 5211 may be fixed to the housing 51, and the mounting portion 5213 may be fixed to an external cabinet or a mounting bracket by welding or engaging.

In one embodiment, the intelligent central control system further comprises a partition board; the partition board is installed in the housing 51, and is used for dividing a local space of the housing 51 into a plurality of partition layers along the height direction of the housing 51. From this, through set up the baffle of highly dividing a plurality of interlayers with casing 51's local space along casing 51 in casing 51, can realize the layering installation of a plurality of modules, be favorable to reducing the occupation of module to casing 51 width or the ascending space of length direction, and then reduce casing 51 area occupied, under the less condition of bottom surface area of placing the space from this, intelligent center control system also can place into, reduces the area user demand of intelligent center control system to the installation environment.

In one embodiment, as shown in fig. 5, the housing 51 includes a bottom shell 511, a front cover 512, a rear cover 513, and a top cover 514; the bottom case 511, the front cover 512, the rear cover 513 and the top cover 514 are connected to form a rectangular parallelepiped.

As shown in fig. 7, the bottom case 511 is formed by sequentially connecting a left side plate 5111, a bottom plate 5112 and a right side plate 5113. In order to fix each electrical module and ensure the cleanness of the inner space of the housing 51, a plurality of protruding fastening cylinders 51121 are arranged on the inner surface of the bottom plate 5112; the fastening cylinder 51121 is provided with a screw hole with an axis parallel to the height direction of the fastening cylinder, and the bottom of the screw hole is sealed.

In an example, in order to realize heat dissipation of the internal space of the housing 51 and ensure that the heat dissipation performance of the housing 51 is good, as shown in fig. 5 or fig. 7, the left side plate 5111 and the right side plate 5113 are provided with a plurality of heat dissipation holes a; the heat dissipation holes in the left side plate 5111 and the right side plate 5113 are in one-to-one correspondence and are opposite to each other. Therefore, air convection in the casing 51 can be realized, so that hot air in the casing 51 can quickly flow out of the casing 51 to quickly dissipate heat.

As shown in fig. 8, a plurality of openings formed in the housing 51 are provided in the rear cover 513, and the shape of the plurality of openings formed in the rear cover 513 is matched with the shape of the corresponding ports.

In one embodiment, to ensure the toughness of the bottom case 511 and simplify the manufacturing process of the bottom case 511, the left side plate 5111, the bottom plate 5112 and the right side plate 5113 are integrally formed.

In one embodiment, to enhance the appearance of the housing 51, a pattern C may be provided on the outer surface of the front cover 512, as shown in fig. 9.

In order to avoid the influence of the overhigh temperature or the overweight humidity on the normal operation of each electrical module, in an embodiment, the intelligent central control system further comprises a temperature and humidity sensor arranged in the shell 51; the temperature and humidity sensor is in communication connection with the gateway module 012, and is configured to monitor temperature and humidity in the housing 51, and send a temperature and humidity signal obtained through monitoring to the gateway module 012; when the gateway module 012 receives the temperature and humidity signal, the gateway module 012 sends the temperature and humidity signal to an external server or adjusts the operating state of at least one of the power module 011, the network module 014, and the interface module 013 according to the temperature and humidity signal. Therefore, the temperature and humidity in the shell 51 are monitored by the temperature and humidity sensor with the humidity added, and the monitored signals are sent to the external server through the gateway module 012, so that the relevant personnel can know the environmental state of the central control system at any time, and send some adjustment strategies to the gateway module 012 through the external server, so that the gateway module 012 can control the working state of other modules according to the received adjustment strategies, for example, when the temperature is too high, the control part of devices stops working or works intermittently, so as to avoid the temperature of the whole machine being too high; when the humidity is too high, the device which is not started is controlled to work so as to avoid the phenomenon that the humidity is too heavy and the device is not started for too long time to be affected with damp. Therefore, the service life of the central control system is prolonged, and the central control system is prevented from being broken down due to temperature and humidity factors.

In the above, the temperature and humidity sensor may be in communication connection with the gateway module 012 through the controller.

Based on the above embodiment, the intelligent central control system further includes a fan disposed in the housing 51; the fan is in communication connection with the gateway module 012; when the gateway module 012 receives the temperature and humidity signal, the gateway module 012 sends the temperature and humidity signal to an external server or adjusts the operating state of at least one of the power module 011, the network module 014, the interface module 013 and the fan according to the temperature and humidity signal.

Therefore, on the basis of the temperature and humidity sensor, the fan is additionally arranged, so that when the humidity or the temperature is too high, the gateway module 012 can immediately control the fan to operate or operate at the highest wind speed gear, so as to reduce the humidity and the temperature in the shell 51. Therefore, the service life of the central control system is prolonged, and the central control system is prevented from being broken down due to temperature and humidity factors.

In order to enhance the heat dissipation and damp clearing effect of the fan, in an embodiment, the air outlet direction of the fan faces the left side plate 5111 or the right side plate 5113.

It should be noted that, according to actual requirements, two or more than two of all embodiments provided by the present invention may be combined to solve two or more than two corresponding technical problems; moreover, various technical features in the above embodiments may be arbitrarily combined as long as there is no conflict or contradiction between the combinations of features, but the combination is not described one by one at the time of space.

It should be noted that the gateway module 012 does not relate to the improvement of the control method and other related computer programs, and the control function, signal transmission and processing function of the related modules related to the control function in the intelligent center control system are self-contained in the device itself, so long as according to the present invention, the modules are connected in the above-mentioned connection mode, and some conventional initialization settings are performed, so as to realize the control and management functions of the intelligent center control system.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any other embodiments that can be easily conceived or replaced by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. An intelligent central control system is characterized by comprising a power supply module, a gateway module, a network module and an interface module; the power supply module is respectively in power supply connection with the gateway module, the network module and the interface module; the gateway module is in communication connection with the network module and is in remote communication with an external server through the network module; the interface module is in communication connection with the gateway module and is used for accessing multimedia equipment; the interface module comprises an audio pre-amplifier;

the audio frequency prepositioner comprises a sound processing circuit and a controller; the sound processing circuit comprises an audio processing circuit, a plurality of microphone processing circuits and a sound mixing circuit;

the audio processing circuit comprises a plurality of audio input interfaces, a plurality of first pre-stage operational amplifier circuits and an audio effect processor; the output ends of different audio input interfaces are in communication connection with the audio sound effect processor through different first pre-stage operational amplifier circuits;

each microphone processing circuit comprises a microphone input interface, a second pre-stage operational amplifier circuit and a microphone sound effect processor; the output end of the microphone input interface is in communication connection with the microphone sound effect processor through a second pre-stage operational amplifier circuit;

the input end of the sound mixing circuit is respectively connected with the audio sound effect processor and the sound output end of each microphone sound effect processor, and the output end of the sound mixing circuit is led out to form a plurality of audio output interfaces;

the controller is respectively in communication connection with the gateway module, the audio effect processor and each microphone effect processor and is used for receiving a sound adjusting signal or an audio switching signal sent by the gateway module, sending a control signal for adjusting sound frequency and/or volume to the audio effect processor and/or the microphone effect processor according to the sound adjusting signal or sending a control signal for switching an audio signal output by the audio effect processor to the audio effect processor according to the audio switching signal; the audio signal output by the audio sound effect processor is one of the audio signals accessed by the plurality of audio input interfaces.

2. The intelligent central control system according to claim 1, wherein the audio processing circuit further comprises a first post operational amplifier circuit; the sound output end of the audio sound effect processor is connected to the input end of the sound mixing circuit through the first rear-stage operational amplifier circuit; and/or

Each microphone processing circuit also comprises a second post-stage operational amplifier circuit; and the sound output end of each microphone sound effect processor is connected to the input end of the sound mixing circuit through a second rear-stage operational amplifier circuit.

3. The intelligent center control system according to claim 1, further comprising a distributed power supply for providing 220V AC; the distributed power supply comprises a plurality of relays, a plurality of on-off control modules and a power supply controller; the input ends of different relays are used for connecting commercial power through different on-off control modules, and the output ends of the different relays are led out to a socket; the power supply controller is respectively in communication connection with the gateway module and the on-off control modules so as to control the corresponding relays to be switched on or off through the on-off control modules according to power supply on-off signals sent by the gateway module; the power on/off signal comprises at least one of the following: the on-off control module is used for indicating the on-off of the specified on-off control module and the off-off signal is used for indicating the off-off of the specified on-off control module.

4. The intelligent central control system according to claim 3, further comprising a terminal connector; the power supply module comprises a first direct current power supply module and a second direct current power supply module which have different output voltages; the first direct current power supply module is in power supply connection with the audio frequency front-end device; the second direct-current power supply module is in power supply connection with the gateway module; the input end of the wiring terminal connector is led out to form a power connection interface for connecting with a mains supply, and the output end of the wiring terminal connector at least comprises 3 output terminals which are respectively connected with the first direct-current power supply module, the second direct-current power supply module and the power supply connecting end of the distributed power supply.

5. The intelligent center control system according to claim 1, further comprising an operation panel and/or a touch screen; and the operation panel and/or the touch screen are in communication connection with the gateway module.

6. The intelligent central control system according to claim 1, further comprising a housing and two members respectively mounted on opposite sides of the housing;

the shell is provided with a plurality of openings; the power module, the gateway module, the network module and the interface module are arranged in the shell, and the power connection end of the power module, the network interface of the network module and the interface end of the interface module are arranged in different openings;

any component comprises a fixed part, a handle part and an installation part which are respectively connected with the fixed part; any one of the members is mounted to the housing through the fixing portion thereof; the installation department is used for the outside rack or the outside mounting bracket cooperation that fixed casing was used to realize that the casing is fixed in outside rack or outside mounting bracket.

7. The intelligent central control system according to claim 6, wherein the fixing portion, the handle portion and the mounting portion of any one of the members are integrally formed by a profile i-shaped panel; wherein, the installation department by the local plate body of panel surface one side is followed and is formed towards the direction bending type of perpendicular to panel with the coplanar direction of panel, the handle portion by in the panel by the vacation space that local plate body formed after buckling and the plate body around the vacation space form, the fixed part by the plate body of panel surface opposite side forms.

8. The intelligent central control system according to claim 7, further comprising a partition; the partition board is arranged in the shell and is used for dividing the local space of the shell into a plurality of partition layers along the height direction of the shell; and/or

The periphery of the empty space is bent towards the direction vertical to the panel to form a flanging.

9. The intelligent central control system according to claim 6 or 7, further comprising a temperature and humidity sensor disposed in the housing; the temperature and humidity sensor is in communication connection with the gateway module and used for monitoring the temperature and humidity in the shell and sending a temperature and humidity signal obtained through monitoring to the gateway module; when receiving the temperature and humidity signals, the gateway module sends the temperature and humidity signals to an external server or adjusts the working state of at least one of the power module, the network module and the interface module according to the temperature and humidity signals; or

The temperature and humidity sensor and the fan are arranged in the shell; the temperature and humidity sensor and the fan are respectively in communication connection with the gateway module; the temperature and humidity sensor is used for monitoring the temperature and humidity in the shell and sending a temperature and humidity signal obtained by monitoring to the gateway module; when the gateway module receives the temperature and humidity signals, the gateway module sends the temperature and humidity signals to an external server or adjusts the working state of at least one of the power module, the network module, the interface module and the fan according to the temperature and humidity signals.

10. The intelligent central control system according to claim 1, wherein the gateway module is an RS485 gateway; and/or, the network module comprises at least one of: the system comprises a switch, a wifi module, a Bluetooth module and a GSM module; and/or the interface module also comprises a plurality of VGA input interfaces, a plurality of VGA output interfaces, a plurality of HDMI input interfaces and a plurality of HDMI output interfaces which are all in communication connection with the gateway module; and/or, audio frequency audio effect treater and each microphone audio effect treater are the sound effect chip of ET2354 model.

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