CN206640798U - A kind of High Power Active linear array array apparatus - Google Patents

Abstract

A kind of High Power Active linear array array apparatus is the utility model is related to, its technical characterstic is：Power transfer module is connected with the power outlet on casing is connected in control circuit offer working power, Ethernet transformer, ethernet controller, Cobranet modules, DSP core processor, digital power amplifier module and loudspeaker, which are sequentially connected, to be connect, Ethernet transformer is connected with the RJ45 network interfaces on casing, Cobranet modules are connected by Audio Input Modules and serial communication module with the audio input interface on casing and control interface, flash memory and ethernet controller, Cobranet modules are connected, detection module is connected with Cobranet modules with DSP core processor.The utility model is designed reasonably, realize audio signal and control signal is converted into data-signal and realizes data communication function by connected Ethernet switch, solve the problems, such as that wiring is complicated, preferably meet the sound transmission gain requirement of large space sound reinforcement system.

Description

A kind of High Power Active linear array array apparatus

Technical field

The utility model communication broadcast equipment technical field, especially a kind of High Power Active linear array array apparatus.

Background technology

Now with being substantially improved for China's economic strength, movement of population is more frequent, and domestic heavy construction the more is built the more more, Such as large airport, super-huge high ferro station, large-scale highway terminal station, large-scale stadium, conference and exhibition center, large conference room, core Power station etc..Because the scale of above-mentioned building is more and more huger, therefore, public domain is required to design using large space, meanwhile, These large space regions are required for configuring public broadcasting or fire broadcast, play a part of commander's production, dredge personnel.Use biography Unite loudspeaker, the problem of being faced with the following aspects：(1) substantial amounts of audience must be covered with enough sound pressure levels, it is desirable to adopt With more loudspeakers (loudspeaker, be preferable solution in theory, but can not provide necessary sound pressure level or Covering)；(2) multiple trapezoidal audio amplifiers traditionally, arrangement must be as compact as possible, and an audio amplifier covers a specific region, This is one, and the overlapping attempt for being reduced to bottom line of destructive cover graphics, (this just causes not advising for time arrival/phase Then with form comb filtering, uneven frequency response, bad definition etc.), the result is that how trapezoidal traditional sector is Loudspeaker array；(3) even if using strict Graph Control, the graphics overlay between neighboring devices still occurs, due to difference Path length and time of arrival (toa), the counteracting for causing the interference relevant with frequency and position (comb filtering) to be formed it is different Position between, extensive change is caused in frequency response and sound pressure level；(4) another intrinsic limitation of fan-shaped array It is：In order to reduce graphics overlay, should only have one group of loudspeaker unit to point to given audience region, overall sound pressure level therefore by To the limitation of the ability of this group of unit；Attempt by the way that multi-acoustical is pointed to same audience region to improve the sound of given area Arbitrarily downgrade and (array is become flat), then increase phase cancellation due to overlapping figure (comb filtering)；(5) it is traditional System projects are spherical wavefronts, the uniform expansion in horizontal and vertical two planes, and sound pressure level (SPL) obeys inverse square rule Rule, it shows, when distance doubles, sound pressure level declines 6dB, and actual effect is, for conventional system, in order to enough Sound pressure level be sent to behind cover graphics, be possible to loud before cover graphics；(6) attempting to provide enough sound pressure levels During, with the increase of the number of loudspeaker unit, various arrival times and phase cancellation form chaotic sound field.Cause This, in order to overcome the phase cancellation effect in room on overall sound pressure level, it is desirable to extra power；(7) conventional loudspeakers do not have Method adjusts directing by software and mathematical computations；(8) conventional loudspeakers all use level pressure or fixed-resistance output, require and adopt With the form of analog wire laying, attenuation is had in transmission, is all had an impact to signal to noise ratio, distortion.

The content of the invention

The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of reasonable in design, convenient for installation and maintenance And meet the High Power Active linear array array apparatus of large space sound transmission gain requirement.

The utility model solves its technical problem and takes following technical scheme to realize：

A kind of High Power Active linear array array apparatus, it is made up of the control circuit of casing and its inside, the control circuit bag Include power transfer module, Ethernet transformer, ethernet controller, flash memory, Cobranet modules, detection module, at DSP core Device, digital power amplifier module and loudspeaker are managed, the power transfer module is connected with the power outlet on casing is connected in control circuit Working power, the Ethernet transformer, ethernet controller, Cobranet modules, DSP core processor, digital work(are provided Amplification module and loudspeaker, which are sequentially connected, to be connect, and the Ethernet transformer is connected with the RJ45 network interfaces on casing, described Cobranet modules are connected by Audio Input Modules with the audio input interface on casing, and Cobranet modules pass through serial Communication module is connected with the control interface on casing, and the flash memory is connected with ethernet controller, Cobranet modules, institute Detection module is stated with Cobranet modules with DSP core processor to be connected.

It is control circuit that the power transfer module, which is made up of AC/DC Switching Power Supplies and exports 36V/5V direct-current working volts, Working power is provided.

The loudspeaker is arranged on the front panel of casing, and its quantity is 36.

The Cobranet modules use CS496112 chips, and the DSP core processor uses CS4961 family chips, The ethernet controller is used using two 10/100M Ethernet data stack chips DM9000E, the too net transformer PPTPM4G-100GH modules, the digital power amplifier is using CS8416 chips, TAS5548 chips and TAS5614 chips Combo architectures, the Audio Input Modules use CS5368 chips, and the serial communication module uses MAX232C chips, described Flash memory uses S29AL008 chips, and detection module uses STM32 chips.

The advantages of the utility model and good effect are：

1st, this High Power Active linear array array apparatus is reasonable in design, and the Cobranet modules in its control circuit can realize sound Frequency signal and control signal are converted into data-signal and realize data communication function by connected Ethernet switch, Audio producer any with international mainstream realizes and interconnected solve the problems, such as that wiring is complicated, as long as a netting twine can be achieved with The transmission of audio signal.

2nd, used by this High Power Active linear array array apparatus built-in DSP technical controllings sound vertical directivity factor and its Highly directive, can compensate makes sound pressure level decay the defects of excessive because distance increases at a distance, can tend to room sound field distribution In more uniform.Simultaneously as the effect of room reverberation, the generation of its reverberation acoustic energy, can further improve on this basis The uniformity of room sound field, ensure definition, simultaneously for increase sound transmission gain, suppression acoustic feedback can usually obtain good Effect, large space sound reinforcement system acoustic characteristic index can be better met on sound transmission gain requirement.

3rd, audio signal and control signal are organically combined together by this High Power Active linear array array apparatus, after its casing Network interface, COBBAIF and power interface are provided with panel, conveniently can pass through main broadcast access information platform, by number Communicated according to, audio in a manner of netting twine, its installation is easy to connect；Meanwhile 36 loudspeakers are provided with casing front panel, often The driving of speaker configurations independent power amplifier, meet the requirement of large space.

4th, this High Power Active linear array array apparatus transmits audio by CobraNet protocol networks and controlled by built-in DSP Sound vertical directivity, one group be arranged in a straight line, the audio radiating element that is spaced closely together has identical amplitude and phase, prop up again Environment noise test, temperature detection, frost protection are held, with 1 road broadcast priority function and is used for urgent broadcast, has and use And feature easy to maintenance.

Brief description of the drawings

Fig. 1 is casing front panel schematic diagram of the present utility model；

Fig. 2 is casing rear board schematic diagram of the present utility model；

Fig. 3 is control circuit block diagram of the present utility model.

Embodiment

The utility model embodiment is described in further detail below in conjunction with accompanying drawing：

A kind of High Power Active linear array array apparatus, as shown in figure 1, being made up of the control circuit of casing and its inside, in machine 36 loudspeakers 1 are set on the front panel of shell, during realizing remote audio transmission, it is identical to ensure that all audience's point positions have Amplitude and phase.As shown in Fig. 22, audio input interfaces 3, two of a control interface are set on the rear board of casing Individual RJ45 network interfaces 4 and a power outlet 5, can be by this equipment and data communication network, audio by above-mentioned standard interface Input, computer control data link together, and carry out corresponding data conversion with switching through by the control circuit of inside.

As shown in figure 3, the control circuit in casing is by power transfer module, Ethernet transformer, ethernet controller, sudden strain of a muscle Deposit, Cobranet modules, detection module, DSP core processor, digital power amplifier module, loudspeaker connect and compose.Power convert mould Block is connected with the power outlet on casing, is mainly made up of AC/DC Switching Power Supplies, and external AC power is converted into controlling by it 36V/5V direct-current working volts required for circuit processed simultaneously provide working power for the control circuit.Ethernet transformer employs The equipment such as PPTPM4G-100GH modules, the network terminal or interchanger in data communication network can be directly connected on casing On RJ45 interfaces.Ethernet controller uses 2 10/100M Ethernet data stack chip DM9000E, the ether network control Device module processed can realize that 2 road 10/100M full speed FDX Ethernets are active and standby and use function.Flash memory uses chip S29AL008, the network audio stream signal of mainly data cached transmitting procedure.Cobranet modules mainly use chip CS496112, complete A/D, D/A conversion of audio signal, RS422/485 rs 232 serial interface signals are provided, Cobranet modules pass through chip CS5368 is connected with the audio input interface on casing realizes audio input function, and Cobranet modules pass through chip MAX232C is connected with the control interface on casing realizes serial ports control function.DSP core processor uses CS4961 (12) core Piece, detection module realize ambient noise and temperature monitoring using chip STM32, digital power amplifier using chip CS8416, TAS5548, TAS5614 framework, loudspeaker using rated power 25W loudspeaker.In the present embodiment, High Power Active line On the audio input port and 9 pin serial communication interfaces that array apparatus is directly connected on casing by Cobranet modules, pass through Ethernet transformer is connected to two RJ45 network interfaces, and power outlet is connected to by power transfer module, so as to realize 1 tunnel Emergency audio input, the input of Cobranet DABs, ambient noise and temperature monitoring, built-in DSP control sound are perpendicularly oriented to Sexual function.

The course of work of the present utility model is as follows：Digital audio and video signals connect network transformer by the network switch, lead to Cross ethernet controller DM9000E and digital audio and video signals are sent to Cobranet modules, Cobranet modules are audio signal Be output to by CS4381 in DSP core processor, DSP core processor by CS4961 (12) chip carry out volume, tone, Directing it is digital regulated, output analogue audio frequency to power amplifier module, power amplifier module by chip CS8416, TAS5548, TAS5614 collective effect, the audio signal after amplification is pushed on loudspeaker, by every rated power 25W Loudspeaker exports audio signal；Cobranet modules complete the defeated of 1 tunnel emergency audio signal by chip CS496112 simultaneously Enter and A/D, D/A are changed and internal priority identification；Detection module realizes that ambient noise and temperature are supervised using chip STM32 Survey, completing RS232/422/485 interfaces by the MAX232C of Cobranet modules exports.

It is emphasized that embodiment described in the utility model is illustrative, rather than it is limited, therefore this reality It is every new according to this practicality by those skilled in the art with the new embodiment including being not limited to described in embodiment The other embodiment that the technical scheme of type is drawn, also belong to the scope of the utility model protection.

Claims (4)

1. a kind of High Power Active linear array array apparatus, it is made up of the control circuit of casing and its inside, it is characterised in that：The control Circuit processed include power transfer module, Ethernet transformer, ethernet controller, flash memory, Cobranet modules, detection module, DSP core processor, digital power amplifier module and loudspeaker, the power transfer module is connected with the power outlet on casing to be connected in Control circuit provides working power, the Ethernet transformer, ethernet controller, Cobranet modules, DSP core processing Device, digital power amplifier module and loudspeaker are sequentially connected and connect, and the Ethernet transformer is connected with the RJ45 network interfaces on casing Connect, the Cobranet modules are connected by Audio Input Modules with the audio input interface on casing, Cobranet modules It is connected by serial communication module with the control interface on casing, the flash memory and ethernet controller, Cobranet modules It is connected, the detection module is connected with Cobranet modules with DSP core processor.

A kind of 2. High Power Active linear array array apparatus according to claim 1, it is characterised in that：The power transfer module It is made up of AC/DC Switching Power Supplies and exports 36V/5V direct-current working volts and provides working power for control circuit.

A kind of 3. High Power Active linear array array apparatus according to claim 1, it is characterised in that：The loudspeaker is arranged on On the front panel of casing, its quantity is 36.

A kind of 4. High Power Active linear array array apparatus according to any one of claims 1 to 3, it is characterised in that：It is described Cobranet modules use CS496112 chips, and the DSP core processor uses CS4961 family chips, the ether network control Device processed uses two 10/100M Ethernet data stack chips DM9000E, and the too net transformer uses PPT PM4G-100GH Module, the digital power amplifier uses the combo architectures of CS8416 chips, TAS5548 chips and TAS5614 chips, described Audio Input Modules use CS5368 chips, and the serial communication module uses MAX232C chips, and the flash memory uses S29AL008 chips, detection module use STM32 chips.