CN113473313A - Cinema intelligence stereo set circuit - Google Patents
Cinema intelligence stereo set circuit Download PDFInfo
- Publication number
- CN113473313A CN113473313A CN202110886483.XA CN202110886483A CN113473313A CN 113473313 A CN113473313 A CN 113473313A CN 202110886483 A CN202110886483 A CN 202110886483A CN 113473313 A CN113473313 A CN 113473313A
- Authority
- CN
- China
- Prior art keywords
- pin
- circuit
- module
- main control
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 101000685982 Homo sapiens NAD(+) hydrolase SARM1 Proteins 0.000 claims abstract description 4
- 102100023356 NAD(+) hydrolase SARM1 Human genes 0.000 claims abstract description 4
- 239000000849 selective androgen receptor modulator Substances 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 8
- 230000002265 prevention Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 27
- 230000005236 sound signal Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 208000033749 Small cell carcinoma of the bladder Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000682 scanning probe acoustic microscopy Methods 0.000 description 1
- 201000007710 urinary bladder small cell neuroendocrine carcinoma Diseases 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2430/00—Signal processing covered by H04R, not provided for in its groups
Abstract
The invention discloses a cinema intelligent sound circuit, which comprises a main control module, a power module, an input module, an output module and a Bluetooth module, wherein the power module, the input module, the output module and the Bluetooth module are connected with the main control module; the input module comprises a camera, a key circuit, a sensor circuit, an SARM circuit, a voice circuit and an ultrasonic ranging module which are connected with the main control module; the output module comprises a display module, an alarm circuit, a storage circuit and a power amplifier circuit which are connected with the main control chip; the power supply circuit comprises a voltage division circuit, a battery charging circuit and a power supply filter circuit, wherein the voltage division circuit provides two voltages of 3.3V and 1.8V for the circuit, the battery charging circuit charges a battery, and the power supply filter circuit provides a clean power supply for the circuit; the invention has reasonable design, has the functions of automatically adjusting volume output and alarming, achieves timely prevention and has good market application value.
Description
Technical Field
The invention relates to the technical field of cinema sound, in particular to an intelligent cinema sound circuit.
Background
Cinema sound equipment is sound box equipment specially used in cinema, which has more shocking audio-visual effect than the traditional household sound box, the sound box refers to equipment capable of converting audio signals into sound, in popular terms, the sound box is a sound box main machine box body or a bass box body internally provided with a power amplifier, the sound box body emits sound after amplifying the audio signals, so that the sound becomes bigger, the sound box is a terminal of the whole sound system, and the sound box is used for converting audio electric energy into corresponding sound energy and radiating the sound to the space, is an extremely important component of the sound system, and is used for converting electric signals into sound signals for being directly listened by ears of people.
The sound emitted by the traditional sound box is set by debugging personnel firstly, and the fixed volume is set; the traditional cinema sound equipment does not have a false touch prevention alarm system, and as is well known, a screen in the cinema is low in cost, but the problem that some children with unknown weight are damaged by accident and cannot find out the screen in time to cause loss is avoided.
Accordingly, the prior art is deficient and needs improvement.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an intelligent sound circuit for a cinema.
The invention provides a technical document, in particular to an intelligent sound circuit of a cinema, which comprises a main control module, a power module, an input module, an output module and a Bluetooth module, wherein the power module, the input module, the output module and the Bluetooth module are electrically connected with the main control module; the input module comprises a camera, a key circuit, a sensor circuit, an SARM circuit, a voice circuit and an ultrasonic ranging module which are connected with the main control module; the output module comprises a display module, an alarm circuit, a storage circuit and a power amplifier circuit which are connected with the main control chip; the power supply circuit comprises a voltage division circuit, a battery charging circuit and a power supply filter circuit, wherein the voltage division circuit provides two voltages of 3.3V and 1.8V for the circuit, the battery charging circuit charges a battery, and the power supply filter circuit provides a clean power supply for the circuit.
Preferably, the main control module comprises a main control chip U1.
Preferably, the sensor circuit comprises a sensor chip U6, a pin 8 of the sensor chip U6 is connected to a 3.3V power supply, a pin 6 and a pin 7 of the sensor chip U6 are grounded in parallel, a pin 1 of the sensor chip U6 is connected to the 3.3V power supply through a resistor R29, a pin 5 of the sensor chip U6 is connected to the 3.3V power supply, a first lead of a pin 12 of the sensor chip U6 is connected to the 3.3V power supply through a pull-up resistor R30, a second lead is electrically connected to a pin 33 of the main control chip U1, a first lead of a pin 13 of the sensor chip U6 is connected to the 3.3V power supply through a pull-up resistor R31, a second lead is electrically connected to a pin 30 of the main control chip, a first lead of a pin 14 of the sensor chip U6 is connected to the 3.3V power supply through a pull-up resistor R32, and a second lead is connected to a pin 27 of the main control chip.
Preferably, the voice circuit comprises a chip U5 and an electret microphone, pins 7, 1 and 32 of the chip U5 are all connected with a 3.3V power supply, pins 8, 23 and 49 of the chip U5 are all connected with a ground, pins 17 and 24 of the chip U5 are connected with a ground, pins 41, 40, 39, 38, 37, 36, 35, 34, 42, 43, 45, 46, 47, 48, 44 and 31 of the chip U5 are respectively connected with pins 108, 111, 118, 121, 125, 130, 132, 138, 141, 144, 148, 152, 156, 158, 139 and 36 of a main control chip U1; the electret microphone is coupled to the chip U5 via two capacitors.
Preferably, the ultrasonic ranging module consists of 4 identical ultrasonic modules, namely an ultrasonic module I, an ultrasonic module II, an ultrasonic module III and an ultrasonic module IV; pin 4 of the first ultrasonic module is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 53 and pin 55 of the main control chip U1; pin 4 of the second ultrasonic module is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 104 and pin 102 of the main control chip U1; pin 4 of the ultrasonic module III is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 123 and pin 117 of the main control chip U1; pin 4 of the ultrasonic module four is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 62 and pin 72 of the main control chip U1.
Preferably, the display module comprises an OLED display screen and a display circuit, pins 13, 14, 15, 18 and 19 of the display screen are respectively connected with pins 18, 43, 80, 85 and 103 of the main control chip U1, and pin 6 is grounded via four filter capacitors.
Preferably, the alarm circuit comprises a triode, a resistor R28 and a buzzer, wherein an emitter of the triode is connected with a 3.3V power supply, a base of the triode is connected with a pin 147 of the main control chip U1 through a resistor R28, and a collector of the triode is grounded through the buzzer.
Preferably, the memory circuit comprises an SD card, a first lead of a pin 1 of the SD card is connected with a 3.3V power supply through a resistor R38, a second lead is connected with a pin 68 of the main control chip U1, the pin 2 of the SD card is connected with a 3.3V power supply through a resistor R37, the first lead wire of the pin 5 of the SD card is connected with a 3.3V power supply through a resistor R36, the second lead wire is connected with the pin 73 of the main control chip U1, the first lead of the pin 7 of the SD card is connected with a 3.3V power supply through a resistor R35, the second lead is connected with the pin 74 of the main control chip U1, the first lead of the pin 8 of the SD card is connected with a 3.3V power supply through a resistor R34, the second lead is connected with the pin 96 of the main control chip, the first lead of the pin 9 of the SD card is connected with a 3.3V power supply through a resistor R33, the second lead is connected with the pin 97 of the main control chip U1, pins 3, 6 and 12 of the SD card are all grounded, and pin 4 of the SD card is connected with a 3.3V power supply.
Preferably, power amplifier circuit includes power amplifier chip and loudspeaker, power amplifier chip and horn connection, power amplifier chip's pin 1 connects main control chip U1's pin 39, pin 2 is through electric capacity C70 ground connection, and pin 3 connects main control chip U1's 54 pin through resistance R59 and electric capacity C75, and pin 4 connects main control chip U1's pin 116 through resistance R60 and electric capacity C76, and pin 6 connects 3.3V power, and sets up decoupling capacitor C73 and C74, pin 7 ground connection in power department.
Preferably, the bluetooth module comprises a bluetooth chip and an antenna connected with the bluetooth chip, pin 12 of the bluetooth chip is connected to a 3.3V power supply, pins 7, 8, 13, 14, 23, 24 and 16 are all grounded, and pins 4, 5, 6, 9 and 10 of the bluetooth chip are respectively connected with pins 79, 83, 122, 124 and 115 of the main control chip U1.
Compared with the prior art, the invention has the advantages that the ultrasonic ranging module is arranged, so that the peripheral distance can be detected, the room area is calculated, the power amplifier output power is automatically adjusted according to the room area, and the purpose of automatically controlling the volume of the loudspeaker is achieved; by arranging the camera and the alarm module, the equipment condition in the cinema can be monitored in real time, and loss can be timely found and stopped; by arranging the voice circuit, the functions of voice recognition, voice control and man-machine conversation can be realized without externally connecting any storage chip, and the warning can be given to movie watching personnel in the cinema in time; the invention has reasonable design, has the functions of automatically adjusting volume output and alarming, achieves timely prevention and has good market application value.
Drawings
FIG. 1 is a logic block diagram of a cinema intelligent sound circuit of the present invention;
FIG. 2 is a schematic diagram of a main control module according to the present invention;
FIG. 3 is a schematic diagram of a voltage divider circuit according to the present invention;
FIG. 4 is a schematic diagram of a battery charging circuit according to the present invention;
FIG. 5 is a schematic diagram of a power filter circuit according to the present invention;
fig. 6 is a schematic view of a camera module according to the present invention;
FIG. 7 is a schematic diagram of a key circuit according to the present invention;
FIG. 8 is a schematic view of a sensor module of the present invention;
FIG. 9 is a schematic diagram of a voice circuit according to the present invention;
FIG. 10 is a schematic view of an ultrasonic ranging module of the present invention;
FIG. 11 is a schematic view of a display module according to the present invention;
FIG. 12 is a schematic diagram of an alarm circuit of the present invention;
FIG. 13 is a schematic diagram of a memory circuit of the present invention;
FIG. 14 is a schematic diagram of a power amplifier circuit according to the present invention;
FIG. 15 is a schematic diagram of a Bluetooth module of the present invention;
FIG. 16 is a schematic diagram of a reset circuit of the present invention;
FIG. 17 is a schematic diagram of the BOOT circuit of the present invention;
FIG. 18 is a schematic diagram of the JTAG circuit of the present invention;
FIG. 19 is a schematic diagram of the SPAM circuit of the present invention;
FIG. 20 is a schematic diagram of the TYPE-C interface of the present invention;
FIG. 21 is a schematic diagram of an extended interface circuit of the present invention;
FIG. 22 is a schematic diagram of a clock circuit according to the present invention.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The use of the terms "fixed," "integrally formed," "left," "right," and the like in this specification is for illustrative purposes only, and elements having similar structures are designated by the same reference numerals in the figures.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The present invention will be described in detail with reference to the accompanying drawings.
Example 1:
referring to fig. 1, the intelligent sound circuit for a cinema comprises a main control module, and further comprises a power module, an input module, an output module and a bluetooth module, wherein the power module, the input module, the output module and the bluetooth module are electrically connected with the main control module; the input module comprises a camera, a key circuit, a sensor circuit, an SARM circuit, a voice circuit and an ultrasonic ranging module which are connected with the main control module; the output module comprises a display module, an alarm circuit, a storage circuit and a power amplifier circuit which are connected with the main control chip; the power supply circuit comprises a voltage division circuit, a battery charging circuit and a power supply filter circuit, wherein the voltage division circuit provides two voltages of 3.3V and 1.8V for the circuit, the battery charging circuit charges a battery, and the power supply filter circuit provides a clean power supply for the circuit.
Referring to fig. 3, fig. 3 is a schematic diagram of a voltage divider circuit according to the present embodiment.
Further, the voltage division circuit comprises a chip U2, and the model of the chip U2 is TPS767D 318.
Further, the voltage division circuit can output two voltages of 3.3V or 1.8V for use through inputting 5V; the voltage of 5V enters through pins 5 and 6 of the chip U2, the voltage of 3.3V is output through pins 16 and 17, and the voltage of 1.8V is output through pins 23 and 24; a path of LED indicator light is arranged in the 5V input voltage and used for displaying the working state of the chip U2. Its advantages are simple circuit, and two different voltages are used.
Referring to fig. 4, fig. 4 is a schematic diagram of a battery charging circuit according to the present embodiment.
Further, the battery charging circuit comprises a chip U8, and the model number of the chip U8 is MCP 73831.
Further, the battery charging circuit charges the battery through the chip U8 through 5V voltage input, and the red LED indicator lamp is on during charging, and the green indicator lamp is on when full of charge. The battery charging chip has the advantages of few peripheral devices and simple wiring.
Referring to fig. 5, fig. 5 is a schematic diagram of a power filter circuit according to the present embodiment.
Furthermore, the power supply filter circuit is implemented by adopting a method of combining low-frequency filtering and high-frequency filtering.
Referring to fig. 2, fig. 2 is a schematic diagram of a main control module according to the present embodiment.
Preferably, the main control module comprises a main control chip U1.
Further, the model of the master control chip U1 is TMS320LF 2812. The main control chip U1 has a main frequency of 150MHz, a ROM chip of 256 Kx 16bit, an external expansion of 512 Kx 16bit NOR FLASH, a RAM chip of 34 Kx 16bit and an external expansion of 256 Kx 16bit SRAM.
Referring to fig. 6, fig. 6 is a schematic view of a camera module according to the present embodiment.
Furthermore, the camera adopts an OV7670 image sensor, has small volume and low working voltage, and provides all functions of a single-chip VGA camera and an image processor. Through the control of the SCCB bus, 8-bit image data with various resolutions such as whole frame, sampling, window taking and the like can be output.
Referring to fig. 7, fig. 7 is a schematic diagram of a key circuit according to the present embodiment.
Furthermore, the key circuit is composed of three keys and a 10K pull-up resistor.
Referring to fig. 8, fig. 8 is a schematic view of a sensor module according to the present embodiment.
Preferably, the sensor circuit comprises a sensor chip U6, a pin 8 of the sensor chip U6 is connected to a 3.3V power supply, a pin 6 and a pin 7 of the sensor chip U6 are grounded in parallel, a pin 1 of the sensor chip U6 is connected to the 3.3V power supply through a resistor R29, a pin 5 of the sensor chip U6 is connected to the 3.3V power supply, a first lead of a pin 12 of the sensor chip U6 is connected to the 3.3V power supply through a pull-up resistor R30, a second lead is electrically connected to a pin 33 of the main control chip U1, a first lead of a pin 13 of the sensor chip U6 is connected to the 3.3V power supply through a pull-up resistor R31, a second lead is electrically connected to a pin 30 of the main control chip, a first lead of a pin 14 of the sensor chip U6 is connected to the 3.3V power supply through a pull-up resistor R32, and a second lead is connected to a pin 27 of the main control chip.
Furthermore, the model of the sensor chip U6 is BM160, and the whole sensor circuit reduces and simplifies PCB wiring, strengthens communication quality.
Referring to fig. 9, fig. 9 is a schematic diagram of a voice circuit according to the present embodiment.
Preferably, the voice circuit comprises a chip U5 and an electret microphone, pins 7, 1 and 32 of the chip U5 are all connected with a 3.3V power supply, pins 8, 23 and 49 of the chip U5 are all connected with a ground, pins 17 and 24 of the chip U5 are connected with a ground, pins 41, 40, 39, 38, 37, 36, 35, 34, 42, 43, 45, 46, 47, 48, 44 and 31 of the chip U5 are respectively connected with pins 108, 111, 118, 121, 125, 130, 132, 138, 141, 144, 148, 152, 156, 158, 139 and 36 of a main control chip U1; the electret microphone is coupled to the chip U5 via two capacitors.
Further, the model of the chip U5 is LD 3320. The chip U5 integrates a voice recognition processor, an A/D converter, a D/A converter, a voice output interface and the like, and can realize voice recognition, voice control and man-machine conversation functions without externally connecting any memory chip.
Referring to fig. 10, fig. 10 is a schematic view of an ultrasonic ranging module according to the present embodiment.
Preferably, the ultrasonic ranging module consists of 4 identical ultrasonic modules, namely an ultrasonic module I, an ultrasonic module II, an ultrasonic module III and an ultrasonic module IV; pin 4 of the first ultrasonic module is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 53 and pin 55 of the main control chip U1; pin 4 of the second ultrasonic module is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 104 and pin 102 of the main control chip U1; pin 4 of the ultrasonic module III is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 123 and pin 117 of the main control chip U1; pin 4 of the ultrasonic module four is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 62 and pin 72 of the main control chip U1.
Furthermore, the model of the ultrasonic module is HC-SR04, and the ultrasonic wave adopts mechanical waves with vibration frequency higher than 20KHz, and has the characteristics of high frequency, short wavelength, small diffraction phenomenon, good directivity and directional propagation as rays. The ultrasonic module adopts a receiving and transmitting double-probe to collect signals and supports 3.3V-5V working voltage. The distance around can be detected through the ultrasonic module to calculate the room area, through room area automatic adjustment power amplifier output, reach the purpose of automatic control loudspeaker volume.
Referring to fig. 11, fig. 11 is a schematic view of a display module according to the present embodiment.
Preferably, the display module comprises an OLED display screen and a display circuit, pins 13, 14, 15, 18 and 19 of the display screen are respectively connected with pins 18, 43, 80, 85 and 103 of the main control chip U1, and pin 6 is grounded via four filter capacitors.
Further, the display module has advantages of wide viewing angle, almost infinite contrast, low power consumption, very high response speed, full color, and simple process.
Referring to fig. 12, fig. 12 is a schematic diagram of an alarm circuit according to the present embodiment.
Preferably, the alarm circuit comprises a triode, a resistor R28 and a buzzer, wherein an emitter of the triode is connected with a 3.3V power supply, a base of the triode is connected with a pin 147 of the main control chip U1 through a resistor R28, and a collector of the triode is grounded through the buzzer.
Referring to fig. 13, fig. 13 is a schematic diagram of a memory circuit according to the present embodiment.
Preferably, the memory circuit comprises an SD card, a first lead of a pin 1 of the SD card is connected with a 3.3V power supply through a resistor R38, a second lead is connected with a pin 68 of the main control chip U1, the pin 2 of the SD card is connected with a 3.3V power supply through a resistor R37, the first lead wire of the pin 5 of the SD card is connected with a 3.3V power supply through a resistor R36, the second lead wire is connected with the pin 73 of the main control chip U1, the first lead of the pin 7 of the SD card is connected with a 3.3V power supply through a resistor R35, the second lead is connected with the pin 74 of the main control chip U1, the first lead of the pin 8 of the SD card is connected with a 3.3V power supply through a resistor R34, the second lead is connected with the pin 96 of the main control chip, the first lead of the pin 9 of the SD card is connected with a 3.3V power supply through a resistor R33, the second lead is connected with the pin 97 of the main control chip U1, pins 3, 6 and 12 of the SD card are all grounded, and pin 4 of the SD card is connected with a 3.3V power supply.
Further, the MCU stores the acquired image data and picture information in the large-capacity SD card.
Referring to fig. 14, fig. 14 is a schematic diagram of a power amplifier circuit according to the present embodiment.
Preferably, power amplifier circuit includes power amplifier chip and loudspeaker, power amplifier chip and horn connection, power amplifier chip's pin 1 connects main control chip U1's pin 39, pin 2 is through electric capacity C70 ground connection, and pin 3 connects main control chip U1's 54 pin through resistance R59 and electric capacity C75, and pin 4 connects main control chip U1's pin 116 through resistance R60 and electric capacity C76, and pin 6 connects 3.3V power, and sets up decoupling capacitor C73 and C74, pin 7 ground connection in power department.
Furthermore, the power amplifier chip is NS4150, and the single chip microcomputer can control the output volume of the loudspeaker through the INP and INN ports. NS4150 has built-in overcurrent protection, overheat protection and undervoltage protection function, and the protection chip is not damaged under unusual operating conditions effectively.
Referring to fig. 15, fig. 15 is a schematic view of a bluetooth module of the present embodiment.
Preferably, the bluetooth module comprises a bluetooth chip and an antenna connected with the bluetooth chip, pin 12 of the bluetooth chip is connected to a 3.3V power supply, pins 7, 8, 13, 14, 23, 24 and 16 are all grounded, and pins 4, 5, 6, 9 and 10 of the bluetooth chip are respectively connected with pins 79, 83, 122, 124 and 115 of the main control chip U1.
The working principle is as follows: the power module provides a clean power supply for the circuit, the ultrasonic ranging module in the input module can measure the area of the projection room, the sound can be intelligently adjusted after information processing is carried out through the microcontroller, meanwhile, the system supports manual setting or voice setting of the volume value, and the overall requirement of the projection room on the sound effect is met to the maximum extent; the video data collected by the camera module can be stored in the storage module through the main control module.
Has the advantages that: the invention can detect the surrounding distance by arranging the ultrasonic ranging module, thereby calculating the room area, automatically adjusting the power amplifier output power through the room area and achieving the purpose of automatically controlling the volume of the loudspeaker; by arranging the camera and the alarm module, the equipment condition in the cinema can be monitored in real time, and loss can be timely found and stopped; by arranging the voice circuit, the functions of voice recognition, voice control and man-machine conversation can be realized without externally connecting any storage chip, and the warning can be given to movie watching personnel in the cinema in time; the invention has reasonable design, has the functions of automatically adjusting volume output and alarming, achieves timely prevention and has good market application value.
The technical features mentioned above are combined with each other to form various embodiments which are not listed above, and all of them are regarded as the scope of the present invention described in the specification; also, modifications and variations may be suggested to those skilled in the art in light of the above teachings, and it is intended to cover all such modifications and variations as fall within the true spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a cinema intelligence stereo set circuit which characterized in that: the method is characterized in that: the intelligent sound circuit comprises a main control module, a power module, an input module, an output module and a Bluetooth module, wherein the power module, the input module, the output module and the Bluetooth module are connected with the main control module;
the input module comprises a camera, a key circuit, a sensor circuit, an SARM circuit, a voice circuit and an ultrasonic ranging module which are connected with the main control module;
the output module comprises a display module, an alarm circuit, a storage circuit and a power amplifier circuit which are connected with the main control chip;
the power supply circuit comprises a voltage division circuit, a battery charging circuit and a power supply filter circuit, wherein the voltage division circuit provides two voltages of 3.3V and 1.8V for the circuit, the battery charging circuit charges a battery, and the power supply filter circuit provides a clean power supply for the circuit.
2. The intelligent cinema sound circuit as claimed in claim 1, wherein: the main control module comprises a main control chip U1.
3. The intelligent cinema sound circuit as claimed in claim 1, wherein: the sensor circuit comprises a sensor chip U6, wherein a pin 8 of the sensor chip U6 is connected with a 3.3V power supply, a pin 6 and a pin 7 of the sensor chip U6 are grounded in parallel, a pin 1 of the sensor chip U6 is connected with the 3.3V power supply through a resistor R29, a pin 5 of the sensor chip U6 is connected with the 3.3V power supply, a first lead of a pin 12 of the sensor chip U6 is connected with the 3.3V power supply through a pull-up resistor R30, a second lead is electrically connected with a pin 33 of the main control chip U1, a first lead of a pin 13 of the sensor chip U6 is connected with the 3.3V power supply through a pull-up resistor R31, a second lead is electrically connected with a pin 30 of the main control chip, a first lead of a pin 14 of the sensor chip U6 is connected with the 3.3V power supply through a pull-up resistor R32, and a second lead is connected with a pin 27 of the main control chip.
4. The intelligent cinema sound circuit as claimed in claim 3, wherein: the voice circuit comprises a chip U5 and an electret microphone, wherein pins 7, 1 and 32 of the chip U5 are all connected with a 3.3V power supply, pins 8, 23 and 49 of the chip U5 are all connected with the ground, pins 17 and 24 of the chip U5 are connected with the ground, and pins 41, 40, 39, 38, 37, 36, 35, 34, 42, 43, 45, 46, 47, 48, 44 and 31 of the chip U5 are respectively connected with pins 108, 111, 118, 121, 125, 130, 132, 138, 141, 144, 148, 152, 156, 158, 139 and 36 of a main control chip U1;
the electret microphone is coupled to the chip U5 via two capacitors.
5. The intelligent cinema sound circuit as claimed in claim 1, wherein: the ultrasonic ranging module consists of 4 same ultrasonic modules, namely an ultrasonic module I, an ultrasonic module II, an ultrasonic module III and an ultrasonic module IV;
pin 4 of the first ultrasonic module is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 53 and pin 55 of the main control chip U1;
pin 4 of the second ultrasonic module is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 104 and pin 102 of the main control chip U1;
pin 4 of the ultrasonic module III is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 123 and pin 117 of the main control chip U1;
pin 4 of the ultrasonic module four is connected with a 3.3V power supply, pin 1 is grounded, and pin 2 and pin 3 are respectively connected with pin 62 and pin 72 of the main control chip U1.
6. The intelligent cinema sound circuit as claimed in claim 1, wherein: the display module comprises an OLED display screen and a display circuit, pins 13, 14, 15, 18 and 19 of the display screen are respectively connected with pins 18, 43, 80, 85 and 103 of the main control chip U1, and pin 6 is grounded through four filter capacitors.
7. The intelligent cinema sound circuit as claimed in claim 1, wherein: the alarm circuit comprises a triode, a resistor R28 and a buzzer, wherein an emitting electrode of the triode is connected with a 3.3V power supply, a base electrode of the triode is connected with a pin 147 of the main control chip U1 through a resistor R28, and a collector electrode of the triode is grounded through the buzzer.
8. The intelligent cinema sound circuit as claimed in claim 1, wherein: the storage circuit comprises an SD card, a first lead of a pin 1 of the SD card is connected with a 3.3V power supply through a resistor R38, a second lead is connected with a pin 68 of the main control chip U1, the pin 2 of the SD card is connected with a 3.3V power supply through a resistor R37, the first lead wire of the pin 5 of the SD card is connected with a 3.3V power supply through a resistor R36, the second lead wire is connected with the pin 73 of the main control chip U1, the first lead of the pin 7 of the SD card is connected with a 3.3V power supply through a resistor R35, the second lead is connected with the pin 74 of the main control chip U1, the first lead of the pin 8 of the SD card is connected with a 3.3V power supply through a resistor R34, the second lead is connected with the pin 96 of the main control chip, the first lead of the pin 9 of the SD card is connected with a 3.3V power supply through a resistor R33, the second lead is connected with the pin 97 of the main control chip U1, pins 3, 6 and 12 of the SD card are all grounded, and pin 4 of the SD card is connected with a 3.3V power supply.
9. The intelligent cinema sound circuit as claimed in claim 1, wherein: the power amplifier circuit includes power amplifier chip and loudspeaker, power amplifier chip and loudspeaker are connected, power amplifier chip's pin 1 connects main control chip U1's pin 39, pin 2 is through electric capacity C70 ground connection, and pin 3 connects main control chip U1's 54 pin through resistance R59 and electric capacity C75, and pin 4 connects main control chip U1's pin 116 through resistance R60 and electric capacity C76, and pin 6 connects 3.3V power, and sets up decoupling capacitor C73 and C74, pin 7 ground connection in power department.
10. The intelligent cinema sound circuit as claimed in claim 1, wherein: the Bluetooth module comprises a Bluetooth chip and an antenna connected with the Bluetooth chip, wherein a pin 12 of the Bluetooth chip is connected with a 3.3V power supply, pins 7, 8, 13, 14, 23, 24 and 16 are all grounded, and pins 4, 5, 6, 9 and 10 of the Bluetooth chip are respectively connected with pins 79, 83, 122, 124 and 115 of the main control chip U1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110886483.XA CN113473313A (en) | 2021-08-03 | 2021-08-03 | Cinema intelligence stereo set circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110886483.XA CN113473313A (en) | 2021-08-03 | 2021-08-03 | Cinema intelligence stereo set circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113473313A true CN113473313A (en) | 2021-10-01 |
Family
ID=77883816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110886483.XA Pending CN113473313A (en) | 2021-08-03 | 2021-08-03 | Cinema intelligence stereo set circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113473313A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326480A (en) * | 2021-12-02 | 2022-04-12 | 深圳市亿方电子有限公司 | Coin-freed machine control system capable of downloading and storing voice |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2806661A1 (en) * | 2013-05-23 | 2014-11-26 | GN Resound A/S | A hearing aid with spatial signal enhancement |
| CN104394052A (en) * | 2014-11-29 | 2015-03-04 | 成都合瑞辰科技有限公司 | Modularized multi-business comprehensive-access Internet of things unified communication platform |
| CN104851218A (en) * | 2015-05-29 | 2015-08-19 | 无锡市崇安区科技创业服务中心 | Doorbell with automatically adjustable volume |
| CN205453903U (en) * | 2015-12-31 | 2016-08-10 | 深圳Tcl数字技术有限公司 | Television set |
| CN107255819A (en) * | 2017-05-05 | 2017-10-17 | 浙江大学 | A kind of compartment remaining space detection means and detection method based on ultrasonic array |
| CN107277260A (en) * | 2017-07-07 | 2017-10-20 | 珠海格力电器股份有限公司 | A kind of contextual model method of adjustment, device and mobile terminal |
| CN206841298U (en) * | 2017-03-28 | 2018-01-05 | 安庆师范大学 | Reversing automobile distance is reported and human testing circuit |
| CN109298847A (en) * | 2018-10-18 | 2019-02-01 | 珠海格力电器股份有限公司 | The adjusting method and device of volume, system |
| CN208460147U (en) * | 2018-06-19 | 2019-02-01 | 田亮 | One kind being based on internet security early warning video networking alarm system |
| CN109361969A (en) * | 2018-10-29 | 2019-02-19 | 歌尔科技有限公司 | A kind of audio frequency apparatus and its volume adjusting method, device, equipment, medium |
| CN110351616A (en) * | 2019-07-08 | 2019-10-18 | 安顺智森电子科技有限公司 | Smart bluetooth sound equipment |
| CN211207105U (en) * | 2019-03-27 | 2020-08-07 | 河南柒玖捌智能科技有限公司 | Intelligent sound system with multiple application scenes |
| CN112512182A (en) * | 2020-12-03 | 2021-03-16 | 深圳市海之景科技有限公司 | A5G intelligence street lamp control system for wisdom city |
-
2021
- 2021-08-03 CN CN202110886483.XA patent/CN113473313A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2806661A1 (en) * | 2013-05-23 | 2014-11-26 | GN Resound A/S | A hearing aid with spatial signal enhancement |
| CN104394052A (en) * | 2014-11-29 | 2015-03-04 | 成都合瑞辰科技有限公司 | Modularized multi-business comprehensive-access Internet of things unified communication platform |
| CN104851218A (en) * | 2015-05-29 | 2015-08-19 | 无锡市崇安区科技创业服务中心 | Doorbell with automatically adjustable volume |
| CN205453903U (en) * | 2015-12-31 | 2016-08-10 | 深圳Tcl数字技术有限公司 | Television set |
| CN206841298U (en) * | 2017-03-28 | 2018-01-05 | 安庆师范大学 | Reversing automobile distance is reported and human testing circuit |
| CN107255819A (en) * | 2017-05-05 | 2017-10-17 | 浙江大学 | A kind of compartment remaining space detection means and detection method based on ultrasonic array |
| CN107277260A (en) * | 2017-07-07 | 2017-10-20 | 珠海格力电器股份有限公司 | A kind of contextual model method of adjustment, device and mobile terminal |
| CN208460147U (en) * | 2018-06-19 | 2019-02-01 | 田亮 | One kind being based on internet security early warning video networking alarm system |
| CN109298847A (en) * | 2018-10-18 | 2019-02-01 | 珠海格力电器股份有限公司 | The adjusting method and device of volume, system |
| CN109361969A (en) * | 2018-10-29 | 2019-02-19 | 歌尔科技有限公司 | A kind of audio frequency apparatus and its volume adjusting method, device, equipment, medium |
| CN211207105U (en) * | 2019-03-27 | 2020-08-07 | 河南柒玖捌智能科技有限公司 | Intelligent sound system with multiple application scenes |
| CN110351616A (en) * | 2019-07-08 | 2019-10-18 | 安顺智森电子科技有限公司 | Smart bluetooth sound equipment |
| CN112512182A (en) * | 2020-12-03 | 2021-03-16 | 深圳市海之景科技有限公司 | A5G intelligence street lamp control system for wisdom city |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114326480A (en) * | 2021-12-02 | 2022-04-12 | 深圳市亿方电子有限公司 | Coin-freed machine control system capable of downloading and storing voice |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104168529B (en) | The micromachined microphones of multi-mode | |
| CN113473313A (en) | Cinema intelligence stereo set circuit | |
| CN110351616A (en) | Smart bluetooth sound equipment | |
| CN215186960U (en) | Voice playing camera | |
| CN207070227U (en) | CCTV camera and CCTV camera system | |
| CN202713580U (en) | Earphone compatible interface circuit for terminal device | |
| CN204790994U (en) | Multi -function display for tuning | |
| CN110166888B (en) | Wireless pickup | |
| CN112911431A (en) | Waterproof solar sound player | |
| CN207802238U (en) | A kind of charger Baffle Box of Bluetooth | |
| CN206433132U (en) | A kind of active audio amplifier | |
| CN213365695U (en) | Distributed multi-defense area optical fiber perimeter safety precaution management system | |
| CN113613146B (en) | Intelligent sound box with control circuit | |
| US8983079B2 (en) | Stereo microphone | |
| CN211529144U (en) | Charger with HDMI screen projection function | |
| CN212544057U (en) | Hearing aid | |
| CN210780788U (en) | Low-power consumption audio emitter | |
| CN110636397A (en) | Simplify waterproof structure's waterproof bluetooth speaker | |
| CN215300898U (en) | Digital audio signal monitoring and monitoring equipment | |
| CN216774871U (en) | Music monitoring camera capable of connecting with Bluetooth | |
| CN204206418U (en) | A kind of hermetically sealed full range Hi-Fi sound-box | |
| CN207783040U (en) | A kind of speaker based on Internet of Things | |
| CN206657653U (en) | Song-order machine | |
| CN209234019U (en) | A kind of Baffle Box of Bluetooth earphone | |
| CN218830100U (en) | High and possess monitor function's office door of security |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211001 |
|
| RJ01 | Rejection of invention patent application after publication |