High-reliability emergency broadcast active publishing terminal

Abstract

The utility model belongs to the technical field of emergency broadcast, and discloses a high-reliability emergency broadcast active publishing terminal, which comprises a master control intelligent processor, a communication module, a camera shooting assembly, a sensor assembly, an FM module, an audio coding and decoding chip and an audio power amplifier module, the communication module is in signal connection with the master control intelligent processor; signal input ends of the camera component and the sensor component are connected with a signal output end of the master control intelligent processor; the master control intelligent processor is in signal connection with the FM module and the audio coding and decoding chip. The signal output end of the FM module is connected with the signal input end of the audio coding and decoding chip; the signal output end of the audio coding and decoding chip is connected with the signal input end of the audio power amplifier module. According to the utility model, on the basis of an environment perception target identification technology, different sensors are matched to communicate with the master control intelligent processor according to scene requirements, so that the surrounding environment can be accurately identified.

Description

TECHNICAL FIELD

[0001] The utility model relates to emergency broadcast technical field, especially in kind of high reliability emergency broadcast initiative release terminal. BACKGROUND

[0002] In recent years, global climate is changeable, natural disasters occur frequently, and disaster types are numerous. In order to cope with various risks and prevention and control, improve the ability of disaster prevention and reduction and disaster relief, minimize personnel casualties and property losses, overall promote emergency management and governance resource integration, and accelerate the construction of emergency broadcast initiative release terminal, it is particularly important.

[0003] The traditional emergency broadcast terminal adopts a single-chip microcomputer with low configuration as the main control chip in integrated design, and the receiving mode adopts wired IP and wireless 4G broadcast, and the main control chip does not have AI computing power and video data processing capability. Therefore, the existing emergency broadcast terminal only relies on sensor data or wireless information to realize emergency broadcasting, and the real-time monitoring range is limited, and the early warning is not accurate enough. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of high reliability emergency broadcast initiative release terminal to further improve the ability of emergency broadcast terminal real-time monitoring, accurate early warning and timely release of emergency information.

[0005] Therefore, the utility model provides a kind of high reliability emergency broadcast initiative release terminal, which adopts the technical scheme as follows:

[0006] A kind of high reliability emergency broadcast initiative release terminal, comprising main control intelligent processor, communication module, camera component, sensor component, FM module, audio codec chip and audio power amplifier module;

[0007] The communication module is signal connected with the main control intelligent processor;

[0008] The signal input end of the camera component and the sensor component is connected with the signal output end of the main control intelligent processor;

[0009] The main control intelligent processor is signal connected with the FM module and the audio codec chip;

[0010] The signal output end of the FM module is connected with the signal input end of the audio codec chip;

[0011] The signal output end of the audio codec chip is connected with the signal input end of the audio power amplifier module.

[0012] As a preferred technical scheme, the FM module comprises a daily broadcast FM demodulation chip and an emergency broadcast FM demodulation chip, and the daily broadcast FM demodulation chip and the emergency broadcast FM demodulation chip are both connected with the main control intelligent processor and the audio codec chip.

[0013] As a preferred technical scheme, the daily broadcast FM demodulation chip comprises a daily broadcast information receiving module, and the daily broadcast information receiving module is connected with an emergency broadcast radio frequency selection circuit, an interrupt circuit, a clock circuit, a data circuit, a Y3 crystal circuit, a power filter circuit and an audio transmission circuit.

[0014] The emergency broadcast radio frequency selection circuit comprises a capacitor C16, a diode D1, an inductor L1 and a capacitor C17, wherein the capacitor C17 is connected with the diode D1 in parallel, and one end is grounded, and the other end is connected with the capacitor C16 and the inductor L1 in series.

[0015] The interrupt circuit comprises a pull-up resistor R13.

[0016] The clock circuit and the data circuit are both connected with the main control intelligent processor, and the clock circuit and the data circuit are respectively provided with a matching impedance resistor R17 and R20 for clock and data communication, and a pull-up resistor R11 and R12 for interrupt.

[0017] The Y3 crystal circuit is provided with a resistor R15 and a capacitor C18 on a line connected with the daily broadcast information receiving module, wherein the resistor R15 is used for limiting the amplitude of the crystal oscillation frequency, and the capacitor C18 is used for coupling the crystal oscillation frequency to the daily broadcast information receiving module.

[0018] The power filter circuit comprises a capacitor C25 for power filtering.

[0019] The audio transmission circuit comprises a capacitor C21, a capacitor C22, a resistor R16, a resistor R18 and a resistor R30, wherein the capacitor C21 is connected with the resistor R16 in series, the capacitor C22 is connected with the resistor R18 in series, and the series connection of the capacitor C21 and the resistor R16 and the series connection of the capacitor C22 and the resistor R18 are connected with the resistor R30 in parallel, so as to connect the audio codec chip through the resistor R30.

[0020] As a preferred technical scheme, the communication module comprises a mobile network module and a decoding chip, and the mobile network module is connected with the main control intelligent processor through the decoding chip.

[0021] As a preferred technical scheme, the main control intelligent processor is connected with a camera component interface, the camera component interface comprises a MIPI port and a power port, and the camera component is connected with the camera component interface through the MIPI port and the power port; wherein the MIPI port is used for data transmission, and the power port is used for providing power for the camera component.

[0022] As a preferred technical scheme, the sensor component is a smoke sensor.

[0023] As a preferred technical scheme, the audio power amplifier module comprises a power amplifier chip and a loudspeaker, the power amplifier chip is connected with the loudspeaker, the power amplifier chip is connected with a power supply circuit and an audio input circuit, the power supply circuit comprises parallelly connected power filter component suppression capacitors C81, C82, C86 and C87, and the audio input circuit comprises a capacitor C84, a resistor R62, a capacitor C85 and a resistor R63; wherein the capacitor C84 and the resistor R62 are connected in series, the capacitor C85 and the resistor R63 are connected in series, and the series-connected capacitor C84 and resistor R62 are connected in parallel with the series-connected capacitor C85 and resistor R63.

[0024] The utility model discloses the beneficial effect is:

[0025] 1, the utility model discloses built-in FM module, under three breaks, can through the base station high -power wireless FM or through mobile low -power wireless FM to wake up the active release terminal, timely and effective to each kind of disaster situation or under the issue of early warning information of sudden event, to improve the processing capacity of on -the -spot audience to sudden event, satisfy audience need of avoiding risk.

[0026] 2, the utility model discloses embedding security chip (audio codec chip) in design, guarantee the security and integrity of data transmission, prevent important data from being illegally accessed or tampered with.

[0027] 3, based on environmental perception target identification technology, according to the scene demand, the different sensor is communicated with main control intelligent processor, and the existing AI intelligent model is combined, and the surrounding environment can be accurately identified, and accurate solution is provided for decision and action. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, various elements or parts are not necessarily drawn according to the actual proportion.

[0029] Figure 1A structure schematic diagram of a high-reliability emergency broadcast active publishing terminal is shown according to an embodiment of the utility model.

[0030] Figure 2 A work flow chart of a high-reliability emergency broadcast active publishing terminal is shown according to an embodiment of the utility model.

[0031] Figure 3 A circuit diagram of a daily broadcast FM demodulation chip is shown according to an embodiment of the utility model.

[0032] Figure 4 A circuit diagram of an emergency broadcast FM demodulation chip is shown according to an embodiment of the utility model.

[0033] Figure 5 A circuit diagram of a mobile network module is shown according to an embodiment of the utility model.

[0034] Figure 6 A circuit diagram of a decoding chip is shown according to an embodiment of the utility model.

[0035] Figure 7 A circuit diagram of a camera assembly interface is shown according to an embodiment of the utility model.

[0036] Figure 8 An audio codec chip circuit diagram is shown according to an embodiment of the utility model.

[0037] Figure 9 A circuit diagram of an audio power amplifier module is shown according to an embodiment of the utility model. DETAILED DESCRIPTION

[0038] The embodiments of the present application will be described in detail with specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. The present application can be implemented or applied in other different embodiments, and each detail in the specification can be modified or changed based on different views and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0039] The specific embodiments of the present application will be described in detail with reference to the accompanying drawings and examples.

[0040] The utility model discloses an active release terminal of high reliability emergency broadcast, including main control intelligent treater 100, communication module 200, camera subassembly 300, sensor subassembly 400, FM module 500, audio codec chip 600 and audio power amplifier module 700, communication module 200 is connected with main control intelligent treater 100 signal, camera subassembly 300 and the signal input end of sensor subassembly 400 are connected the signal output end of main control intelligent treater 100, main control intelligent treater 100 and FM module 500 and audio codec chip 600 are all signal connection, the signal output end of FM module 500 is connected the signal input end of audio codec chip 600, the signal output end of audio codec chip 600 is connected the signal input end of audio power amplifier module 700.

[0041] Compared with the conventional emergency broadcast release terminal, the active release terminal of high reliability emergency broadcast is increased with FM module 500, in three broken conditions, the active release terminal can be awakened through base station high-power wireless FM or through mobile low-power wireless FM, timely and effectively issues early warning information under various disaster conditions or emergency events, to improve the processing capacity of on-site audience to deal with emergency events, and meet the needs of audience risk avoidance. Among them, "power failure, circuit break, network break" is called three broken. Specifically, the FM module 500 can be used as a starting module in emergency situations, such as power failure or circuit break caused by power supply or line problem disconnection in conventional power grid power supply, wireless network disconnection, the FM module 500 can start the active release terminal of high reliability emergency broadcast, the active release terminal of high reliability emergency broadcast also includes a lithium battery, the lithium battery is a built-in lithium battery with a size matched with the power of the device, which solves the problem that the device can play its due function and role in three broken conditions. The FM module 500 starts the lithium battery in three broken conditions, so that the whole terminal can run in three broken conditions.

[0042] The terminal also has an audio codec chip 600, which plays a safety protection role, for example, it is connected with the main control intelligent treater 100 using a high security protocol with high security level, to ensure the security and integrity of data transmission, prevent illegal insertion of emergency information, prevent important data from being illegally accessed or tampered with.

[0043] Exemplarily, compared with a conventional emergency broadcast issuing terminal, the host intelligent processor 100 selects a chip with stronger performance, such as selecting a domestic TL3568 core board as an emergency broadcast active issuing terminal host intelligent brain (hereinafter referred to as an intelligent brain). The TL3568 core board has a quad-core ARM Cortex-A55, a main frequency of 2.0 GHz, supports multi-channel Ethernet, CAN, USB3.0, RS485, SDIO, SPI and other interface communications, has MIPI LCD, LVDS LCD, HDMIOUT, CAMERA, MIC IN, H / P OUT and other multi-channel audio and video multimedia interfaces, has high computing power, can efficiently and real-timely process audio and video information, so as to meet the speed and real-timeliness of audio and video processing of specific algorithms, and can be combined with different unit modules, communication components, sensors and the like to form various monitoring and supervision application systems. The RK3568 supports Rockchip's RKNN (Rockchip Neural Network), which is a neural network computing engine developed for AI applications. Based on RKNN, the RK3568 can realize image recognition, target detection, natural language processing and other AI applications on edge devices to meet the diversified application needs of different scenes and different groups in three-break situations.

[0044] In this way, the host intelligent processor 100 can independently process data, can comprehensively process signals fed by the camera assembly 300 and the sensor assembly 400, and can realize more accurate prediction. For example, the sensor assembly 400 is selected as a smoke sensor. As shown in Figure 2 The existing RNNK model is configured in the host intelligent processor 100, and the generation and loading steps of the RNNK model can be performed on other servers. The generation and loading steps of the RNNK model include:

[0045] S1, flame smoke recognition model (PT model) training;

[0046] S2, obtaining the trained PT model;

[0047] S3, converting the PT model into an ONNX format model;

[0048] S4, converting the ONNX format model into an RNNK format to obtain an RNNK model;

[0049] S5, loading the RNNK model to the 3568 chip (host intelligent processor).

[0050] In the case that the RNNK model has been loaded in the master intelligent processor 100, after the camera assembly 300 collects image data and pre-processes the image data, the image data is transmitted to the master intelligent processor 100, at the same time, the master intelligent processor 100 acquires the smoke signal fed by the smoke sensor, based on the pre-processed image data and the smoke signal, the RNNK model is used in the master intelligent processor 100 for identification, and the AI identification result is obtained. If the AI identification result includes a flame, a flame alarm information is output, if the AI identification result includes smoke, a smoke alarm information is output, the output flame alarm information and smoke alarm information are processed into corresponding audio by the FM module 500, and then the audio is processed by the audio codec chip 600 to obtain the broadcast information, and the broadcast information is broadcast by the audio power amplifier module 700, at the same time, the broadcast information processed by the audio codec chip 600 is returned to the master intelligent processor 100 again, and the master intelligent processor 100 is connected with a center server through the communication module 200, the center server can transmit the broadcast information to a terminal adjacent to the high-reliability emergency broadcast active publishing terminal in geographical position after receiving the corresponding broadcast information, and the terminal receiving the corresponding broadcast information can directly broadcast the information. Understandably, in actual implementation, multiple broadcast publishing terminals can be arranged, and the multiple broadcast publishing terminals are communicated by a unified center server, so that information interaction between the broadcast publishing terminals can be realized. Of course, the center server also plays a role in publishing remote information, for example, according to the possible disaster situation found by weather forecast, earthquake disaster monitoring, etc., the center server uniformly sends a signal to each publishing terminal to broadcast the disaster through each publishing terminal to play a warning role and avoid personnel casualties and economic losses caused by disasters as much as possible.

[0051] It should be noted that the above is only an example, and in actual implementation, the present application can not only be applied to fire warning, but also can realize warning of other dangerous situations, such as flood disaster, and the sensor assembly 400 can be correspondingly provided with water level sensors, flow rate sensors and other sensors to realize flood warning in combination with the existing AI model. The present embodiment is only an example and does not limit the present application. At the same time, it should be noted that the data processing method realized by the master intelligent processor 100 is an existing method, and the present application does not improve the data processing method.

[0052] In this embodiment, a domestic RK3568 is selected as the main control intelligent processor, a four-core ARM Cortex-A55, a main frequency of 2.0 GHz, supporting multi-channel Ethernet, CAN, USB3.0, RS485, SDIO, SPI and other interface communications, having MIPI LCD, LVDS LCD, HDMI OUT, CAMERA, MIC IN, H / P OUT and other multi-channel audio and video multimedia interfaces, having high computing power, and being capable of efficiently and real-timely processing audio and video information to meet the speed and real-timeliness of specific algorithms for audio and video processing, and being capable of being combined with different unit modules, communication components, sensors, cameras and the like to form various monitoring and supervision application systems.

[0053] In some embodiments, the FM module 400 includes a daily broadcast FM demodulation chip and an emergency broadcast FM demodulation chip, both of which are in signal connection with the main control intelligent processor and the audio codec chip.

[0054] The FM module and the main control intelligent processor adopt I2C communication, and through the control of the main control intelligent processor, automatic switching of the daily broadcast and the emergency broadcast is realized, the daily broadcast broadcast demand of the user is met, and the unique role of the combination of the emergency and the urgent is fully played.

[0055] Among them, the daily broadcast FM demodulation chip is a chip that implements its corresponding function under normal circumstances, and the emergency broadcast FM demodulation chip is started under an emergency situation, such as not receiving a signal from the main control intelligent processor 100 within a set time, at which time the emergency broadcast FM demodulation chip starts a backup power supply and wakes up the camera assembly 300, the sensor assembly 400 and the audio codec chip 600 through the main control intelligent processor 100 to realize processing under an emergency situation.

[0056] In some embodiments, such as Figure 3As shown, the daily broadcast FM demodulation chip includes a daily broadcast information receiving module U4, which is connected with an emergency broadcast radio frequency selection circuit, an interrupt circuit, a clock circuit, a data circuit, a Y3 crystal circuit, a power filter circuit, and an audio transmission circuit. The emergency broadcast radio frequency selection circuit includes a capacitor C16, a diode D1, an inductor L1, and a capacitor C17. The capacitor C17 is connected in parallel with the diode D1, with one end grounded and the other end connected with the capacitor C16 and the inductor L1 in series. The interrupt circuit includes a pull-up resistor R13. The clock circuit and the data circuit are both connected with a main control intelligent processor. The clock circuit and the data circuit are respectively provided with matching impedance resistors R17 and R20 for clock and data communication, and pull-up resistors R11 and R12 for interrupt. The Y3 crystal circuit is provided with a resistor R15 and a capacitor C18 on the line connected with the daily broadcast information receiving module. The resistor R15 is used for limiting the amplitude of the crystal oscillation frequency, and the capacitor C18 is used for coupling the crystal oscillation frequency to the daily broadcast information receiving module. The power filter circuit includes a capacitor C25 for power filtering. The audio transmission circuit includes a capacitor C21, a capacitor C22, a resistor R16, a resistor R18, and a resistor R30. The capacitor C21 is connected in series with the resistor R16, and the capacitor C22 is connected in series with the resistor R18. The series connection of the capacitor C21 and the resistor R16 is connected in parallel with the series connection of the capacitor C22 and the resistor R18, and then connected with the resistor R30, so as to connect the audio codec chip through the resistor R30.

[0057] It should be noted that the structure of the emergency broadcast FM demodulation chip is basically the same as that of the daily broadcast FM demodulation chip, and the difference lies in that the emergency broadcast information receiving module in the emergency broadcast FM demodulation chip is configured to be connected with a base station large-power wireless FM or through a mobile small-power wireless FM. The main active publishing terminal can be awakened through the base station large-power wireless FM or through the mobile small-power wireless FM.

[0058] Specifically, as shown in FIG. 4, the emergency broadcast FM demodulation chip includes an emergency broadcast information receiving module U5, which is connected with an emergency broadcast radio frequency selection circuit, an interrupt circuit, a clock circuit, a data circuit, a Y3 crystal circuit, a power filter circuit, and an audio transmission circuit. The emergency broadcast radio frequency selection circuit includes a capacitor C16, a diode D1, an inductor L1, and a capacitor C17. The capacitor C17 is connected in parallel with the diode D1, with one end grounded and the other end connected with the capacitor C16 and the inductor L1 in series. The interrupt circuit includes a pull-up resistor R13. The clock circuit and the data circuit are both connected with a main control intelligent processor. The clock circuit and the data circuit are respectively provided with matching impedance resistors R17 and R20 for clock and data communication, and pull-up resistors R11 and R12 for interrupt. The Y3 crystal circuit is provided with a resistor R15 and a capacitor C18 on the line connected with the daily broadcast information receiving module. The resistor R15 is used for limiting the amplitude of the crystal oscillation frequency, and the capacitor C18 is used for coupling the crystal oscillation frequency to the daily broadcast information receiving module. The power filter circuit includes a capacitor C25 for power filtering. The audio transmission circuit includes a capacitor C21, a capacitor C22, a resistor R16, a resistor R18, and a resistor R30. The capacitor C21 is connected in series with the resistor R16, and the capacitor C22 is connected in series with the resistor R18. The series connection of the capacitor C21 and the resistor R16 is connected in parallel with the series connection of the capacitor C22 and the resistor R18, and then connected with the resistor R30, so as to connect the audio codec chip through the resistor R30. Figure 4As shown, the emergency broadcast FM demodulation chip includes an emergency broadcast wireless information receiving module U5, the capacitor C31, the inductor L3, and the capacitor C30 form an emergency broadcast radio frequency selection circuit, which suppresses interference components outside the 87-108 MHz frequency band, improves the receiving effect of the frequency used in the 87-108 MHz frequency band, the capacitor C31 is a high-voltage capacitor, and the diode D2 is a high-voltage diode, which aims to reduce damage to the receiving module when encountering high voltage or lightning; the resistors R21, R22, and R23 are the pull-up resistors of the interrupt (INT), clock (SCL), and data (SDA), and the clock (SCL) and data (SDA) are respectively connected to the corresponding pins of the main control intelligent processor; the resistors R28 and R31 are the matching impedance resistors for clock and data communication; the Y4 crystal is the reference oscillation frequency required by the receiving module, the resistor R25 functions as a crystal oscillation frequency limiter, and the capacitor C32 couples the crystal oscillation frequency to the receiving module; the capacitors C35 and C36 function as power supply filtering; and the capacitors C33 and C34, the resistor R27, and the resistor R29 form a circuit that sends the audio demodulated by the module to the audio codec chip RIN1 port through the resistor R32.

[0059] In some embodiments, the communication module 400 includes a mobile network module and a decoding chip, and the mobile network module is connected to the main control intelligent processor 100 through the decoding chip.

[0060] Exemplarily, as shown in the figure, Figure 5 As shown, the communication module 400 is selected as a G / 5G mobile communication module, adopts a USB (USB_DM and USB_DP) communication mode, and is connected to the DM4 and DP4 pins of the FE1.1_AQFP48A-IC (decoding chip), so as to perform buffer processing on the 4G / 5G communication data through the FE1.1_AQFP48A-IC, and the purpose is to further improve the operation efficiency of the main control intelligent processor and the 4G / 5G data communication capability.

[0061] The capacitors C40, C41, C42, and C43 are 3.3V power supply filtering capacitors of the module; the resistors R42 and R44 form a voltage dividing (half voltage) circuit, the capacitor C49 is a 6-pin power supply filtering capacitor of the module; the capacitors C45, C46, C47, and C48 are 3.3V power supply filtering capacitors of the 2-pin and 4-pin modules; the USB30_2_SSTXP, USB30_2_SSTXN, USB30_2_SSRXP, and USB30_2_SSRXN pins are respectively connected to the main control intelligent processor, and provide convenience for later functional expansion and upgrading.

[0062] 4G / 5G mobile communication broadcasting has solved the needs of left-behind children and elderly people living alone to have real-time online voice or video calls with their relatives, and has also addressed the need for monitoring and supervision in different application scenarios. In addition, it has provided scientific solutions for grassroots cadres to do a good job in grassroots governance, courtyard security and prevention, and equalization of public services at the grassroots level.

[0063] In the event of three disruptions (disruption of communication, data sharing, and infrastructure), wireless communication networks (which can form self-organizing networks) provide a one-stop service capability for responding to public emergencies and addressing timely needs of the people. Under these circumstances, the equipment can promptly monitor geological disaster situations, changes in communities and villages, and prominent governance issues, thereby generating disaster early warning data and grassroots governance resource data, providing scientific and technological support for advancing Chinese-style modernization.

[0064] like Figure 6 As shown, the FE1.1_AQFP48A-IC (decoding chip) connects to the main control intelligent processor via DP and DM communication. The module provides four USB ports, adopts an MTT data transmission architecture, and features excellent data exchange capabilities and overcurrent protection in Self-Power mode. It also exhibits good EMI and ESD performance and strong electromagnetic interference resistance. It provides ultra-reliable computing power for 5G's high bandwidth, low latency, data-intensive computing, and multi-scenario applications.

[0065] In some embodiments, the main control intelligent processor 100 is connected to a camera component interface, which includes a MIPI port and a power port. The camera component 300 is connected to the camera component interface through the MIPI port and the power port. The MIPI port is used for data transmission, and the power port is used to provide power to the camera component.

[0066] For example, the camera component 300 is preferably a digital camera, such as... Figure 7 As shown, the digital camera and the main control intelligent processor use MIPI-CSI communication for video interaction. MIPI is a differential serial port transmission, which is fast and has strong anti-interference capabilities. During transmission, it uses four pairs of differential signals to transmit image data and one pair of differential clock signals, which are connected to the communication interface of the main control intelligent processor. Figure 7 The camera component interface has 32 pins, and the wiring descriptions for each pin are as follows:

[0067] 9. I2C3_SCL; 10. I2C3_SDA;

[0068] 11. CAM_PWDN; 14. CAM_MCLK;

[0069] 16. MIPI_CSI_RX_D3P; 17. MIPI_CSI_RX_D3N;

[0070] 19, MIPI_CSI_RX_D2P; 20, MIPI_CSI_RX_D2N;

[0071] 22, MIPI_CSI_RX_D1P; 23, MIPI_CSI_RX_D1N;

[0072] 25, MIPI_CSI_RX_CLKOP; 26, MIPI_CSI_RX_CLKON;

[0073] 28, MIPI_CSI_RX_D0P; 29, MIPI_CSI_RX_D0N;

[0074] 1, 2, VDD_5.0V; 6, VDD_1.8V;

[0075] 3, 13, 15, 18, 21, 24, 27, 30, 32 pins are connected to ground, respectively.

[0076] Figure 7 Among them, the capacitor C311, the capacitor C312, are the camera 5V power filtering capacitor; the capacitor C310 is the camera 1.8V power filtering capacitor, and the resistor R334 is the isolation resistor for communication between the camera and the main control intelligent processor.

[0077] In some embodiments, as shown in Figure 8 It is an audio codec chip circuit diagram, the audio codec chip is connected with the main control intelligent processor through I2S and I2C, realizes local audio analog-digital conversion upload or digital-analog conversion local broadcast. Interface connection with the main control intelligent processor.

[0078] The audio codec chip 1 pin adopts I2S1_MCLK and is connected with the main control intelligent processor; the 5 pin adopts I2S1_SCLK_TX and is connected with the main control intelligent processor; the 6 pin adopts I2S1_SDO0 and is connected with the main control intelligent processor; the 7 pin adopts I2S1_LRCK_TX and is connected with the main control intelligent processor board; the 8 pin adopts I2S1_SDI0 and is connected with the main control intelligent processor; the 26 pin adopts I2C_ADDR and is connected with the main control intelligent processor; the 27 pin adopts I2C3_SDA_M0 and is connected with the main control intelligent processor; the 28 pin adopts I2C3_SCL_M0 and is connected with the main control intelligent processor.

[0079] The audio codec chip 23 is coupled to the emergency frequency modulation audio output RIN1 port through the capacitor C252, and the 24 pin is coupled to the daily frequency modulation broadcast audio output LIN1 port through the capacitor C251, so as to realize the emergency frequency modulation audio, the daily frequency modulation audio, the local audio (intercom), and the 4G / 5G decoding audio processed by the audio codec chip, the core board AI control, and the audio codec chip LOUT2 and ROUT2 audio output to the audio power amplifier module L1N and RIN input.

[0080] The resistors R494 and R503 are I2C3_SDA_M0 and I2C3_SCL_M0 communication pull-up resistors, the resistor R229 is a codec chip I2C_ADDR_CE communication pull-up resistor, the capacitors C255, C256, and C257 are filter decoupling capacitors, the capacitors C251, C252, C253, and C254 are audio input coupling capacitors, the capacitors C246, C247, and C248 are 3.3V power supply filtering capacitors, the resistor R219 is a 3.3V power supply current limiting resistor, the capacitors C244 and C245 are 1.8V power supply filtering capacitors of the audio codec chip 2 pin, and the capacitors C249 and C250 are 1.8V power supply filtering capacitors of the audio codec chip 3 pin.

[0081] In some embodiments, as shown in Figure 9 The audio power amplifier module includes a power amplifier chip and a loudspeaker, the power amplifier chip is connected to the loudspeaker, the power amplifier chip is connected to a power supply circuit and an audio input circuit, the power supply circuit includes parallelly connected power supply filter component suppression capacitors C81, C82, C86, and C87, and the audio input circuit includes capacitors C84 and C85 and resistors R62 and R63, wherein the capacitor C84 and the resistor R62 are connected in series, the capacitor C85 and the resistor R63 are connected in series, and the series-connected capacitor C84 and resistor R62 are connected in parallel with the series-connected capacitor C85 and resistor R63.

[0082] In this embodiment, the loudspeaker is selected as a loudspeaker, and the 8 and 9 pins of the audio power amplifier module CS5266E are connected to the loudspeaker (2Ω) to output a power of 10W.

[0083] The capacitors C81, C82, C86, and C87 are power supply filter component suppression capacitors of the audio power amplifier module, C83 is a voltage bootstrap capacitor, and the capacitors C84, C62, C85, and R63 constitute an audio input coupling limiting action.

[0084] When the device is in a standby state, the master intelligent processor works in an AI broadcast state, at this time, the power input and audio input of the audio power amplifier module are in an intelligent broadcast mode, meeting the user's multi-scene broadcast demand. When an emergency broadcast signal is received, the AI broadcast automatically switches to an emergency broadcast mode, realizing the first-time quick response and timely broadcast of emergency incidents.

[0085] In summary, the advantages of the present application are as follows: first, from the application innovation of traditional broadcast passive reception to active publishing, effectively improving the emergency rescue ability of emergency broadcast in three-break situations, further promoting the construction process of intelligent radio and television, providing a demonstration construction idea for future radio and television development and emergency broadcast function expansion; second, by integrating network resources, configuring corresponding sensors in different areas, further expanding the warning information publishing ability, expanding the audience of emergency information, minimizing secondary disaster losses, and effectively protecting the safety of people's lives and property; third, the traditional emergency broadcast loudspeaker terminal, household response product and everyone's device do not have the functions of real-time online collection and active publishing of multi-scene intelligent identification information. The present application realizes the transition from civil defense to technical defense, and provides a scientific solution for safe compounds, emergencies and disaster rescue, and provides a decision-making reference path for rural governance and rural revitalization in the new era.

[0086] The above embodiments are only used to illustrate the present application, and are not intended to limit the present application. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, all equivalent technical solutions also belong to the scope of the present application, and the patent protection scope of the present application should be defined by the claims.

Claims

1. A high-reliability emergency broadcast active distribution terminal, characterized in that, The main control intelligent processor, the communication module, the camera assembly, the sensor assembly, the FM module, the audio codec chip and the audio power amplifier module are included. The communication module is in signal connection with the main control intelligent processor. The signal input ends of the camera assembly and the sensor assembly are connected with the signal output end of the main control intelligent processor. The main control intelligent processor is in signal connection with the FM module and the audio codec chip. The signal output end of the FM module is connected with the signal input end of the audio codec chip. The signal output end of the audio codec chip is connected with the signal input end of the audio power amplifier module. The FM module includes a daily broadcast FM demodulation chip and an emergency broadcast FM demodulation chip, and the daily broadcast FM demodulation chip and the emergency broadcast FM demodulation chip are in signal connection with the main control intelligent processor and the audio codec chip. The daily broadcast FM demodulation chip includes a daily broadcast information receiving module, and the daily broadcast information receiving module is connected with an emergency broadcast radio frequency selection circuit, an interrupt circuit, a clock circuit, a data circuit, a Y3 crystal circuit, a power filter circuit and an audio transmission circuit. The emergency broadcast radio frequency selection circuit includes a capacitor C16, a diode D1, an inductor L1 and a capacitor C17; wherein the capacitor C17 is connected with the diode D1 in parallel, and one end is grounded, and the other end is connected with the capacitor C16 and the inductor L1 in series. The interrupt circuit includes a pull-up resistor R13. The clock circuit and the data circuit are connected with the main control intelligent processor, and the clock circuit and the data circuit are respectively provided with matching impedance resistors R17 and R20 for clock and data communication, and pull-up resistors R11 and R12 for interrupt. The Y3 crystal circuit is provided with a resistor R15 and a capacitor C18 on the line connected with the daily broadcast information receiving module, wherein the resistor R15 is used for limiting the amplitude of the crystal oscillation frequency, and the capacitor C18 is used for coupling the crystal oscillation frequency to the daily broadcast information receiving module. The power filter circuit includes a capacitor C25 for power filtering. The audio transmission circuit includes a capacitor C21, a capacitor C22, a resistor R16, a resistor R18 and a resistor R30; wherein the capacitor C21 is connected with the resistor R16 in series, the capacitor C22 is connected with the resistor R18 in series, the series connection of the capacitor C21 and the resistor R16 is connected with the series connection of the capacitor C22 and the resistor R18 in parallel, and then the resistor R30 is connected, so as to connect the audio codec chip through the resistor R30.

2. The high-reliability emergency broadcast active distribution terminal according to claim 1, wherein The communication module includes a mobile network module and a decoding chip, and the mobile network module is connected with the main control intelligent processor through the decoding chip.

3. The high-reliability emergency broadcast active distribution terminal according to claim 1, wherein The main control intelligent processor is connected with a camera assembly interface, the camera assembly interface includes an MIPI port and a power port, and the camera assembly is connected with the camera assembly interface through the MIPI port and the power port; wherein the MIPI port is used for data transmission, and the power port is used for providing power for the camera assembly.

4. The high-reliability emergency broadcast active distribution terminal of claim 1, wherein, The sensor assembly is a smoke sensor.

5. The high-reliability emergency broadcast active distribution terminal of claim 1, wherein, The audio power amplifier module comprises a power amplifier chip and a loudspeaker, the power amplifier chip is connected with the loudspeaker, the power amplifier chip is connected with a power supply circuit and an audio input circuit, the power supply circuit comprises parallelly connected power supply filter component suppression capacitors C81, C82, C86 and C87; the audio input circuit comprises a capacitor C84, a resistor R62, a capacitor C85 and a resistor R63; wherein the capacitor C84 and the resistor R62 are connected in series, the capacitor C85 and the resistor R63 are connected in series, and the series-connected capacitor C84 and resistor R62 are connected in parallel with the series-connected capacitor C85 and resistor R63.

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