Emergency broadcast terminal supporting satellite short message
By using energy switching modules and multiple information receiving modules in emergency reporting terminals, the problem of single power supply and reception methods of existing terminals is solved, and stable operation and rapid data transmission in power outages and complex environments are achieved.
Patent Information
- Application Number
- CN202421476546.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-26
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-26
AI Technical Summary
The existing emergency broadcast terminal power supply and information reception methods are single, resulting in the inability to work normally in power outages or complex environments.
An emergency broadcast terminal supporting satellite short messages was designed, and the energy switching module was used to combine wind energy, solar energy and energy storage batteries for power supply, and a variety of information reception methods were realized through the short message reception module and the FM Amplitude Receiving Modulation Receiving Module.
It ensures that the terminal can operate stably for a long time without external power supply, and achieves fast and accurate data transmission in complex environments.
Smart Images
Figure CN222928406U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of emergency broadcasting, in particular to an emergency broadcasting terminal supporting satellite short messages. Background Art
[0002] Emergency broadcasting is a fast and convenient information transmission channel for emergencies such as major natural disasters, emergencies, public health and social security. Emergency broadcasting has the characteristics of wide coverage and regularity.
[0003] In the emergency broadcast system, the broadcast terminal is the key device that transmits information to the user. It is usually integrated in a device with a speaker. Whether indoors or outdoors, the power supply of the broadcast terminal is usually powered by AC to DC. This results in the broadcast terminal not being able to work properly in the event of an unexpected power outage. Secondly, most of the existing emergency broadcast systems use FM broadcasting to receive emergency broadcast signals. This is a single form and cannot achieve accurate data transmission in complex environments. Summary of the invention
[0004] The utility model provides an emergency broadcast terminal supporting satellite short messages, so as to solve the technical problems of single power supply mode and single information receiving mode of the existing broadcast terminal mentioned in the background technology.
[0005] The technical solution of the utility model is as follows: an emergency broadcast terminal supporting satellite short messages, comprising: a processing module, a short message receiving module, an FM / AM receiving module, a voice playing module and an energy switching module,
[0006] The short message receiving module, the FM / AM receiving module, the voice playing module and the energy switching module are all connected to the processing module, the short message receiving module is used to receive the short message emergency information from the satellite, the FM / AM receiving module is used to receive the broadcast emergency information of the FM radio, and the processing module is used to play the short message emergency information and the broadcast emergency information through the voice playing module;
[0007] The energy switching module is respectively connected to the wind power generation device, the solar power generation device and the energy storage battery. The energy switching module is used to stabilize and reduce the voltage output by the wind power generation device, the solar power generation device and the energy storage battery and to supply power to the emergency broadcast terminal.
[0008] Further, the energy switching module includes a channel selection circuit and a step-down voltage stabilizing circuit. The input end of the channel selection circuit is connected to the wind power generation device, the solar power generation device, and the energy storage battery. The input end of the channel selection circuit is respectively connected to the wind power generation device, the solar power generation device, and the energy storage battery. The output end of the channel selection circuit is connected to the input end of the step-down voltage stabilizing circuit. The output end of the step-down voltage stabilizing circuit is respectively connected to the short message receiving module, the FM / AM receiving module, and the voice playing module. The control end of the channel selection circuit is connected to the processing module;
[0009] The channel selection circuit is used to select to connect the wind power generation device, the solar power generation device, or the energy storage battery to the step-down voltage stabilizing circuit according to the control signal of the processing module. The step-down voltage stabilizing circuit is used to stabilize and step down the electric energy.
[0010] Further, a current sampling circuit is connected to the output ends of the wind power generation device, the solar power generation device, and the energy storage battery. The output end of the current sampling circuit is connected to the processing module.
[0011] Further, the voice playing module includes an audio processing circuit, an amplification circuit, and a speaker. The audio processing circuit is connected to the FM / AM receiving module and the processing module. The amplification circuit is connected to the audio processing circuit and the processing module. The output end of the amplification circuit is connected to the speaker.
[0012] Further, the amplification circuit includes a power amplifier, and the audio processing circuit includes a digital-to-analog conversion circuit and an operational amplifier.
[0013] Further, the processing module includes a single-chip microcomputer.
[0014] Further, the short message receiving module includes a satellite short message chip and a satellite antenna, and the FM / AM receiving module includes an AM chip and an AM antenna.
[0015] The beneficial effects of the present utility model: The present utility model adopts a solar discharge device and a wind power generation device as power supply equipment, and uses an energy storage battery to store electric energy, ensuring that the terminal can operate stably for a long time without external power supply. In addition, the present utility model also adopts satellite short message communication technology, which can realize fast and accurate data transmission in complex environments. Description of the Drawings
[0016] Figure 1 is a schematic structural diagram of the present utility model.
[0017] Figure 2 is a circuit diagram of the short message receiving module in the present utility model.
[0018] Figure 3 It is a partial circuit diagram of the channel selection circuit in the present utility model.
[0019] Figure 4 It is the circuit diagram of the step-down and voltage-stabilizing circuit in the present utility model. Specific embodiments
[0020] In order to enable those skilled in the art to better understand the solution of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0021] In the embodiments of the present utility model, Figure 1 It is a structural schematic diagram provided according to the specific structure of an emergency broadcast terminal supporting satellite short messages in the present utility model. As Figure 1 shown, the present utility model specifically includes: a processing module 1, a short message receiving module 2, a frequency modulation and amplitude modulation receiving module 3, a voice playing module 4, and an energy switching module 5.
[0022] Among them, the short message receiving module 2, the frequency modulation and amplitude modulation receiving module 3, the voice playing module 4, and the energy switching module 5 are all connected to the processing module 1. The short message receiving module 2 is used to receive the short message emergency information of the satellite, the frequency modulation and amplitude modulation receiving module 3 is used to receive the broadcast emergency information of the frequency modulation broadcast, and the processing module 1 is used to play the short message emergency information and the broadcast emergency information through the voice playing module 4;
[0023] The energy switching module 5 is respectively connected to a wind power generation device 6, a solar power generation device 7, and a storage battery 8. The energy switching module 5 is used to stabilize and step down the voltages output by the wind power generation device 6, the solar power generation device 7, and the storage battery 8 and supply power to the emergency broadcast terminal. At the same time, the energy switching module 5 can also store electric energy in the storage battery 8 to achieve electric energy storage and electric energy supply.
[0024] Among them, the energy switching module 5 supports the access of wind energy, solar energy, and storage batteries for power supply, and has functional characteristics such as energy monitoring and identification, intelligent switching strategy, multi-channel load power supply support, overcharge and over-discharge protection, and communication and monitoring. By real-time monitoring the energy state and system requirements, this module can intelligently select the optimal energy supply method to improve energy utilization efficiency and system reliability. At the same time, its multi-channel load power supply support and overcharge and over-discharge protection functions also further enhance the stability and safety of the system.
[0025] Specifically, the above-mentioned processing module 1 can use a single-chip microcomputer with the model GD303F303 to communicate with each module through a serial port to achieve information transmission and control management.
[0026] The short message receiving module 2 includes a satellite short message chip and a satellite antenna, with the specific model being DM222. The specific circuit is as Figure 2 shown. The satellite short message module is a communication module based on the Beidou satellite navigation system BDS, which is used to achieve efficient and reliable short message communication in emergency situations. This module can realize point-to-point information transmission through Beidou satellites in an environment without public network signals, providing important communication support for emergency command, rescue, etc. The satellite antenna is a Beidou-3 satellite antenna. The satellite short message module receives short message information and sends it to the processing module 1. The processing module 1 broadcasts the text through a voice synthesis algorithm, thereby realizing the voice broadcast function. Since the voice synthesis algorithm is a conventional technical means, it will not be elaborated here.
[0027] The FM / AM receiving module 3 includes an AM chip and an AM antenna. It receives medium-wave AM amplitude modulation emergency broadcasts through the AM chip and the AM antenna.
[0028] In an embodiment of the present invention, the energy switching module 5 includes a channel selection circuit 51 and a buck and voltage regulation circuit 52. Among them, the structure of the channel selection circuit 51 is as Figure 3 shown, and the structure of the buck and voltage regulation circuit 52 is as Figure 4 shown.
[0029] The input end of the channel selection circuit 51 is connected to the wind power generation device 6, the solar power generation device 7, and the energy storage battery 8. The input end of the channel selection circuit 51 is respectively connected to the wind power generation device 6 and the solar power generation device 7. The output end of the channel selection circuit 51 is connected to the input end of the buck and voltage regulation circuit 52. The output end of the buck and voltage regulation circuit 52 is respectively connected to the short message receiving module 2, the FM / AM receiving module 3, and the voice playback module 4. The control end of the channel selection circuit 51 is connected to the processing module 1.
[0030] The channel selection circuit 51 is used to select to connect the wind power generation device 6 or the solar power generation device 7 to the buck and voltage regulation circuit 52 according to the control signal of the processing module 1. The buck and voltage regulation circuit 52 is used to stabilize and step down the electric energy.
[0031] The energy storage battery 8 is also connected with a charge and discharge circuit. The charge and discharge circuit is used to charge and discharge the energy storage battery 8. At the same time, if the energy storage battery 8 is charged with AC mains power, the charge and discharge circuit will rectify the alternating current.
[0032] The above wind power generation device 6 is a wind power generator, and the solar power generation device 7 can be a solar panel. These technologies are all conventional technical means in this field, so they will not be elaborated here.
[0033] In an embodiment of the present invention, a current sampling circuit is connected to the output ends of the wind power generation device 6 and the solar power generation device 7, and the output end of the current sampling circuit is connected to the processing module 1. The processing module 1 can monitor the output current of each power generation device according to the current signal collected by the current sampling circuit, and control the on / off of each channel in the channel selection circuit 51 according to the current signal. As Figure 3 shown, which is a schematic structural diagram of a switching circuit in the channel selection circuit 51. Those skilled in the art can select multiple switching circuits to form the channel selection circuit 51 according to the actual situation.
[0034] In an embodiment of the present invention, the voice playback module 4 includes an audio processing circuit 41, an amplification circuit 42, and a speaker 43. The audio processing circuit 41 is connected to the frequency modulation and amplitude modulation receiving module 3 and the processing module 1, the amplification circuit 42 is connected to the audio processing circuit 41 and the processing module 1, and the output end of the amplification circuit 42 is connected to the speaker 43.
[0035] Among them, the amplification circuit 42 includes a power amplifier, which is mainly responsible for the power amplification of audio, and can amplify the weak audio signals from the sound source (processing module 1 and AM module) so that it has enough power to drive the speaker 43 or audio equipment, thereby emitting clear and loud sounds. The audio processing circuit 41 includes a digital-to-analog conversion circuit and an operational amplifier. The above power amplifier, digital-to-analog conversion circuit, and operational amplifier are all conventional technical means, so they will not be elaborated here.
[0036] In an embodiment of the present invention, the processing module 1 is further connected to an Ethernet interface module 9. The processing module 1 receives the IP network emergency broadcast signal through the Ethernet interface module 9 and plays it through the voice playback module 4.
[0037] The present invention realizes the receiving and sending of satellite short messages, the implementation scheme of different energy supplies and switching, and at the same time integrates AM and IP emergency broadcasts, thereby providing a highly reliable broadcast terminal for green energy supporting satellite short messages. This terminal is suitable for scenarios such as emergency broadcasts, smart communities, smart cities, and smart street lights. In the future, this terminal is expected to play an important role in fields such as wilderness exploration, environmental monitoring, and emergency rescue, bringing more convenience to social emergency protection.
[0038] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present utility model rather than to limit them. Although the present utility model has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and all of them should be covered within the scope of the claims of the present utility model.
Claims
1. An emergency broadcast terminal supporting satellite short messages, characterized in that: include: processing module (1), short message receiving module (2), frequency modulation and amplitude modulation receiving module (3), voice playing module (4) and energy switching module (5), The short message receiving module (2), the FM / AM receiving module (3), the voice playing module (4) and the energy switching module (5) are all connected to the processing module (1); the short message receiving module (2) is used to receive short message emergency information from a satellite; the FM / AM receiving module (3) is used to receive broadcast emergency information from FM radio; and the processing module (1) is used to play the short message emergency information and the broadcast emergency information through the voice playing module (4); The energy switching module (5) is connected to the wind power generation device (6), the solar power generation device (7) and the energy storage battery (8) respectively, and the energy switching module (5) is used to stabilize and reduce the voltage output by the wind power generation device (6), the solar power generation device (7) and the energy storage battery (8); The energy switching module (5) comprises a channel selection circuit (51) and a buck voltage stabilization circuit (52); the input end of the channel selection circuit (51) is connected to the wind power generation device (6), the solar power generation device (7) and the energy storage battery (8); the input end of the channel selection circuit (51) is respectively connected to the wind power generation device (6), the solar power generation device (7) and the energy storage battery (8); the output end of the channel selection circuit (51) is connected to the input end of the buck voltage stabilization circuit (52); the output end of the buck voltage stabilization circuit (52) is respectively connected to the short message receiving module (2), the frequency modulation and amplitude modulation receiving module (3) and the voice playing module (4); and the control end of the channel selection circuit (51) is connected to the processing module (1); The channel selection circuit (51) is used to select, according to the control signal of the processing module (1), to connect the wind power generation device (6) or the solar power generation device (7) or the energy storage battery (8) to the step-down voltage stabilization circuit (52), and the step-down voltage stabilization circuit (52) is used to stabilize and step down the voltage of electric energy.
2. The emergency broadcast terminal supporting satellite short messages as claimed in claim 1, characterized in that: The output ends of the wind power generation device (6), the solar power generation device (7) and the energy storage battery (8) are connected to a current sampling circuit, and the output end of the current sampling circuit is connected to a processing module (1).
3. The emergency broadcast terminal supporting satellite short messages according to claim 1, characterized in that: The voice playing module (4) comprises an audio processing circuit (41), an amplifying circuit (42) and a loudspeaker (43); the audio processing circuit (41) is connected to the FM / AM receiving module (3) and the processing module (1); the amplifying circuit (42) is connected to the audio processing circuit (41) and the processing module (1); and the output end of the amplifying circuit (42) is connected to the loudspeaker (43).
4. The emergency broadcast terminal supporting satellite short messages as claimed in claim 3, characterized in that: The amplification circuit (42) comprises a power amplifier, and the audio processing circuit (41) comprises a digital-to-analog conversion circuit and an operational amplifier.
5. The emergency broadcast terminal supporting satellite short messages as claimed in claim 1, characterized in that: The processing module (1) is also connected to an Ethernet interface module (9), and the processing module (1) receives the IP network emergency broadcast signal via the Ethernet interface module (9) and plays it via the voice playing module (4).
6. The emergency broadcast terminal supporting satellite short messages according to claim 1, characterized in that: The processing module (1) comprises a single chip microcomputer.
7. The emergency broadcast terminal supporting satellite short messages according to claim 1, characterized in that: The short message receiving module (2) comprises a satellite short message chip and a satellite antenna, and the frequency modulation and amplitude modulation receiving module (3) comprises an AM chip and an AM antenna.