Movable LDSW multifunctional wireless communication terminal for both peacetime and urgency and working method of mobile LDSW multifunctional wireless communication terminal for both peacetime and urgency

Abstract

The invention provides the LDSW multifunctional wireless communication terminal capable of being connected with a mobile network and a smart phone and capable of being moved, and the working method of the LDSW multifunctional wireless communication terminal. When a network exists, the mobile gateway reader-writer can be connected with everything in an ultra-low power consumption communication mode, and the mobile gateway reader-writer, the ultra-long distance wireless network interphone and the low-cost wireless telephone communication terminal can be used as the mobile gateway reader-writer. When no network exists, the digital interphone can be an ultra-low power consumption confidential digital interphone, a radio and an MP3 player which can still receive emergency broadcast even in a power-off state; an ultra-low power consumption LDSW intelligent label which can be searched and positioned; more functions such as off-line voice recognition, text information editing and sending are realized by utilizing software and hardware resources of a smart phone connected with the mobile phone. Communication with the outside can be realized through a Beidou short message small base station fixed on the ground or on a vehicle; the method can be widely applied to various scenes, especially emergency relief communication scenes.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technology, and more specifically, to a movable multi-functional wireless communication terminal for both peacetime and emergency use in the case of "three disruptions" and its working method. Background Art

[0002] Existing wireless communication mainly relies on mobile communication networks. Mobile network communication requires a large number of network base stations and network control centers, and consumes a large amount of electric energy. As a network communication terminal, a mobile phone also needs to be charged at any time, especially for 5G communication. Therefore, when disasters, wars, etc. cause the "three disruptions" situation, it will greatly affect the basic life of the general public. And effective disaster prevention, mitigation and relief require a communication system to ensure, and the restoration of the mobile network often takes a long time. The international situation is volatile, and all countries are stepping up their preparations for war. How to give full play to the role of the existing radio and television system, broadcast warning information to every household in a timely manner, and upload the situation of the disaster to the superior leaders in a timely manner, and how to effectively organize and command the masses to fight disasters, rescue and mitigate disasters during the disaster. This requires a simple and effective emergency communication system that can "issue orders from above and report the situation from below in a timely manner". It can not only meet the needs of on-site command and dispatch during disaster relief, but also play many other important roles in normal times, such as daily communication in remote areas that does not rely on mobile networks, internal communication in enterprises, institutions and communities, and narrowband communication required for the Internet of Everything.

[0003] Now the problem is that due to the increasingly powerful functions of smart phones, the use of dedicated radios is getting less and less, and existing AM and FM radios cannot be used solely for receiving emergency broadcasts. Therefore, when the radio station conducts an emergency broadcast, it is also necessary to wake up the radio through a remote wireless digital coding signal and adjust it to the emergency broadcast channel. This requires installing sideband signal decoders for AM and FM broadcasts respectively on each radio. For example, AMSS and RDS decoders, and they must always be in the on state, which not only consumes a large amount of electric energy, but also increases the cost of the radio. More importantly, most of the radios on the market currently do not install such decoders. In addition, although the signal transmission of AM radios can be reflected by the ionosphere and propagated over a long distance, its transmission effect is very poor in cities, especially in buildings. Therefore, it can only rely more on FM broadcasts that are relatively close.

[0004] In addition, emergency broadcasts are one-way. During disasters, superior leaders also need to know the disaster situation on the front line, which requires two-way communication. However, satellite phones are too expensive to be widely used and consume a lot of electricity; commonly used walkie-talkies not only consume a lot of electricity, but also it is difficult to complete the task of uploading information. Summary of the Invention

[0005] In view of this, the present invention provides a movable multi-functional LDSW wireless digital communication terminal for both normal and emergency use and a working method to solve the above problems.

[0006] To solve the above technical problems, the present invention provides a movable multi-functional LDSW wireless communication terminal for both normal and emergency use. Each multi-functional terminal is provided with a unique ID number. The multi-functional terminal includes:

[0007] At least one LDSW communication module for long-distance intercom communication, an audio jack for connecting a microphone and a speaker, an AM / FM radio or a music player with an AM / FM radio for receiving emergency broadcasts, which is connected to the LDSW communication module, a power supply, a main control CPU, and a digital screen with text input and display functions, or a set of knobs or buttons that provide communication object and communication function setting options to the user in a voice-playing manner;

[0008] The LDSW communication module operates in a low duty cycle mode. It is a 433 MHz low-frequency wireless communication module that can perform long-distance digital text and voice intercom communication with other LDSW communication modules, or an LDSW communication module operating on other frequency bands. When the LDSW communication module is used for intercom communication between each other, the party initiating the intercom communication will continuously and uninterruptedly repeat the transmission of wake-up signals on a pre-specified signal monitoring channel within a time period longer than the sleep wake-up cycle of the LDSW communication module serving as the intercom communication receiver, using the ID number of the multi-functional terminal or its other identity number as the signal receiving address. Immediately after the LDSW communication module serving as the signal receiver wakes up from sleep, it establishes a communication connection with it and tells the signal receiver to jump to a new channel for encrypted intercom communication;

[0009] The communication mode of the LDSW communication module includes point-to-point and / or point-to-multipoint;

[0010] The audio jack is used to connect an earphone for two-way voice communication and music appreciation, or a combination of a small speaker and a microphone for fixed voice intercom and music appreciation. When it is connected to the LDSW communication module of the AM / FM radio, it wakes up the originally off AM / FM radio by receiving the LDSW emergency broadcast wake-up signal from the broadcast station and adjusts them to the emergency broadcast receiving channel.

[0011] As an optional method, when the emergency broadcast is being broadcast, it uses text information for wireless broadcast transmission. After the receiving end converts the received text content into voice using TTS, it then plays the voice. At this time, the main control CPU of the multi-functional terminal is configured with TTS software for text-to-speech conversion, or the main control CPU is connected to a TTS chip.

[0012] As an alternative, the main control CPU is configured with artificial intelligence offline speech-to-text recognition software and TTS software. When the LDSW multi-functional terminal is used for voice communication, the artificial intelligence offline speech-to-text recognition software converts the voice received through the microphone connected to the voice socket into text, and then transmits it to the voice receiver through the LDSW communication module. The voice receiver then converts the received text information into voice through the TTS software and plays it through the speaker connected to the audio socket.

[0013] As an alternative, the main control CPU is also connected to a WiFi or Bluetooth module; the WiFi or Bluetooth module is used for wireless communication with a smart phone, so that the multi-functional terminal can use the smart phone to complete information collection and transmit information through the LDSW communication module.

[0014] As an alternative, at least one of the main control CPUs of the smart phone or the multi-functional terminal is configured with offline speech-to-text recognition software and TTS software;

[0015] When the multi-functional terminal is transmitting, it converts the voice into text and then transmits it through the LDSW communication module;

[0016] When the multi-functional terminal is receiving, it converts the received text information into voice and then plays it.

[0017] As an alternative, the speech-to-text recognition software matches the pre-extraction and numbering of the voiceprint packets of the voice recorder.

[0018] When converting the voice information of the voice inputter into text information, the voiceprint packet code number of the text information is also added; and in the multi-functional terminal as the voice receiver, the voiceprint packet of the voice inputter and its corresponding code number information are pre-stored.

[0019] As an alternative, the multi-functional terminal uses the characteristic that the text transmission time is much less than the voice transmission time, and adopts a time-division transmission method to separately transmit the text information in different transmission directions, so as to achieve the purpose of duplex intercom communication.

[0020] As an alternative, the main control CPU is also connected to a second LDSW communication module, and the operating frequency band of the second LDSW communication module is the 2.4G frequency band.

[0021] As an alternative, the main control CPU is also connected to a mobile network terminal for Internet of Things digital communication.

[0022] As an alternative, similar to the FM / AM radio connected to the LDSW communication module that can be turned on by receiving the LDSW emergency broadcast wake-up signal in an emergency, the multifunctional terminal can also be connected to an emergency lighting lamp, which can also be turned on by receiving the LDSW emergency broadcast wake-up signal in an emergency, especially at night and in underground tunnels.

[0023] As an alternative, when the multifunctional terminal is used for voice communication, this method also adopts a working mode that first transforms the voice transmission that requires a relatively high communication rate, long-term occupation of frequency resources, and long-term high-power consumption transmission into text transmission that only requires a relatively low communication rate, very short high-power consumption communication time, and frequency occupation time. This not only greatly reduces power consumption, improves the utilization efficiency of frequency resources, increases the communication distance, enhances the confidentiality of communication, but also makes the relay transmission of voice information and connection to Beidou satellites simpler and easier.

[0024] On the other hand, the present invention also provides a working method for a movable multi-functional LDSW wireless communication terminal for use in operating the above-mentioned movable multi-functional LDSW wireless digital communication terminal. When the multi-functional terminal is in a non-working state, the LDSW communication module in the multi-functional terminal enters a periodic sleep and wakes up to listen for signals in a low-power state for an instant.

[0025] As for the LDSW communication module in the multi-functional terminal that initiates communication, it will continuously transmit wake-up instruction signals on its signal listening channel without interruption for a period of time longer than the sleep-wake cycle of the LDSW communication module that is the communication object, and establish a communication connection with it at the instant when the LDSW communication module wakes up from sleep.

[0026] When the LDSW communication module is used for intercom communication between each other, the party that initiates the intercom communication will use the ID number of the multi-functional terminal or its other identity number as the signal receiving address, and continuously transmit wake-up signals without interruption on the pre-specified signal listening channel for a period of time longer than the sleep-wake cycle of the LDSW communication module that is the recipient of the intercom communication; and establish a communication connection with it at the instant after waking up from sleep, and tell the signal recipient to jump to a new channel and conduct intercom communication in an encrypted manner;

[0027] The communication modes of the LDSW communication module include point-to-point and / or point-to-multipoint.

[0028] As an alternative, the LDSW communication module also uses the WiFi module or Bluetooth module to wirelessly communicate and connect with a smart phone in an offline or online state, uses various software and hardware resources of the smart phone to collect relevant information, and transmits the information through the LDSW communication module.

[0029] The beneficial effects of the present invention are as follows:

[0030] The social and economic benefits of the present invention are obvious. It uses a new generation of Internet of Things communication technology standard with complete independent intellectual property rights to solve the urgent problems of enterprise internal communication in China today, and to achieve "orders from above can be conveyed downwards, and the situation below can be reported in a timely manner" in the case of "three disruptions", as well as the emergency broadcast and emergency communication required for on-site command and dispatch in the front line of disaster prevention, mitigation and relief, in a low-cost, ultra-low-power and dual-purpose (peace and emergency) manner.

[0031] The present invention first optimizes the broadcast mode that requires a relatively high communication rate, long-term occupation of frequency resources, and long-term high-power consumption transmission for voice transmission into a working mode that only requires a relatively low communication rate, very short high-power consumption communication time and frequency occupation time for text transmission. This not only greatly reduces power consumption, improves the utilization efficiency of frequency resources, increases the communication distance, enhances the confidentiality of communication, but also makes the relay transmission of voice information and the connection to Beidou satellites simpler and easier. Brief Description of the Drawings

[0032] Figure 1 is the LDSW multi-functional digital communication terminal for basic functions;

[0033] Figure 2 is the LDSW multi-functional digital communication terminal for connecting an offline smart phone;

[0034] Figure 3 is the working principle of the LDSW multi-functional digital communication terminal to achieve duplex intercom using a single channel;

[0035] Figure 4 is the LDSW multi-functional digital communication terminal installed with offline voice recognition and voice synthesis software;

[0036] Figure 5 is the LDSW multi-functional digital communication terminal for connecting to the public network;

[0037] Figure 6 is the schematic diagram of various functions of the movable dual-purpose (peace and emergency) LDSW multi-functional wireless communication terminal;

[0038] Figure 7 is the dual-purpose (peace and emergency) Internet of Things application in cities;

[0039] Figure 8 is the dual-purpose (peace and emergency) village and town disaster prevention, mitigation and relief broadcast and intercom dispatch system;

[0040] Figure 9 is the dual-purpose (peace and emergency) internal Internet of Things communication network in communities, hospitals, nursing homes, enterprises and institutions;

[0041] Figure 10 It is a schematic diagram of a simple intercom communication network within the unit. Specific implementation manners

[0042] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with specific implementation manners.

[0043] Please refer to Figures 1 - 10 , this embodiment provides a movable multi-functional wireless digital communication terminal for both peacetime and emergency use (hereinafter referred to as the multi-functional terminal). Each multi-functional terminal has a unique ID number and consists of at least the following parts: 1). At least one LDSW wireless digital communication module (hereinafter referred to as the LDSW communication module) that can be used for long-distance intercom communication; 2). An audio jack that can be connected to a microphone and a speaker; 3). An AM / FM radio or (and) an MP3 music player that is connected to the LDSW communication module and can receive emergency broadcasts; 4). A power supply; 5). A main control CPU; and 6). An optional digital screen with text input and display functions.

[0044] When the LDSW communication module here is powered by a battery, for the purpose of power saving, it operates in a low duty cycle mode, that is, a standby mode in which it listens for signals instantaneously on a pre-specified channel after periodic sleep and wake-up; when power supply is guaranteed, it can also operate in a full-time mode with a duty cycle of one. It meets the national unified standard of "Technical Requirements for Low Duty Cycle Internet of Things Intelligent Tag Communication System"; it generally uses the Sub-G working frequency band, especially the 433 MHz public frequency band or other low-frequency dedicated frequency bands, so as to facilitate long-distance voice intercom or text communication. It can communicate with other LDSW communication modules operating in the same frequency band for long-distance digital text and voice intercom communication. When the LDSW communication modules are used for intercom communication with each other, the party initiating the intercom communication will, within a period longer than the sleep and wake-up cycle of the LDSW communication module that is the recipient of the intercom communication, use the ID number of the multifunctional terminal or its other identification number as the wake-up signal receiving address, and continuously and uninterruptedly repeat the transmission of the wake-up signal on the pre-specified signal listening channel, catch the LDSW communication module of the recipient of the intercom communication at the moment after its sleep and wake-up, establish a communication connection with it, and tell the signal recipient to jump to a new channel and conduct intercom communication in an encrypted manner. This intercom communication can be in a point-to-point private mode or a point-to-multipoint group chat mode. For the convenience of voice communication or receiving voice broadcasts, the multifunctional terminal also needs a speaker and a microphone, or an audio jack or a Bluetooth wireless interface for externally connecting a speaker and a microphone as needed. The speaker and the microphone here can be fixedly installed or carried around as needed; the LDSW communication module connected to the AM / FM radio is used to replace two high-power AMSS decoders respectively used for AM broadcasting and a high-power RDS decoder used for FM broadcasting, so that the LDSW communication module can turn on the originally off AM / FM radio by receiving the LDSW emergency broadcast wake-up signal transmitted from a broadcasting station and tune them to the emergency broadcast receiving channel. Here, the MP3, in addition to being used for general entertainment purposes, can also be used to store the call recording records during voice communication of the multifunctional terminal and query the call records, and select to play the call recording records of a specific period or a specific communication object. The realization of the query function does not require the multifunctional terminal to come with relevant hardware devices or software for query, but can be queried through a smartphone by temporarily connecting to the smartphone through other means such as Bluetooth or USB interface, so as to reduce the cost of the multifunctional intelligent terminal. After all, the query work does not need to be carried out at any time.

[0045] The method of using a multi-functional terminal to wake up an AM / FM radio can not only meet the national requirement of mandatorily installing an FM / AM radio in automobiles so that drivers can listen to emergency broadcasts while driving, but also enable drivers when not driving or other non-driving personnel to receive emergency broadcasts through the multi-functional terminal they carry with them; the power supply can be a general battery or a rechargeable battery, or other external power supplies. What specific power supply to use completely depends on specific application conditions and the need to meet the power consumption requirements for the operation of the multi-functional terminal. The main control CPU can coordinate and control the operation of each component of the LDSW multi-functional terminal through a wired connection method. Here, the digital screen is used for the selection and display of communication channels and communication objects when the multi-functional terminal is used for intercom communication, and for the input and display of text information when used for digital text information communication. The term "optional" here means that when there are other means with the same functions as the above-mentioned digital screen, for example, when the multi-functional terminal can be connected to a smart phone through a wired or wireless method, we can use the smart phone to replace the function of the digital screen; or we can use multiple knobs and buttons, with each button and knob position corresponding to a voice playback content, to achieve the selection of communication channels and communication objects to replace the digital screen. That is, the other means here can be a smart phone connected to the multi-functional terminal through a wired or wireless method, or buttons and knobs that are pre-recorded and played back and have multiple function selections, etc. (See Figure 1 )

[0046] Due to considerations such as cost, transmission distance, transmission power consumption, or lack of broadcast facility conditions, sometimes we need to first wirelessly broadcast and transmit the content of the emergency voice broadcast in text form, and then convert the received text content into voice using TTS (Text To Speech) at the receiving end and play it. At this time, the receiving end will no longer be an FM / AM radio, but an LDSW communication module. At this time, we need to embed a text-to-speech TTS software in the main control CPU or connect it to a TTS chip; the LDSW emergency broadcast wake-up signal will directly become the emergency broadcast content transmitted in text form. (See Figure 1 )

[0047] Since the text information for transmitting the same content is much smaller than the voice data, in order to transmit the voice after converting it into text, an artificial intelligence offline voice-to-text recognition software and TTS software are also embedded in the main control CPU. When the LDSW multi-functional terminal is used for voice communication, the software first converts the voice received through the microphone connected to the voice socket into text, and then transmits it to the voice receiver through the LDSW communication module. The voice receiver then converts the received text information into voice through the TTS software and plays it through the speaker connected to the audio socket. (SeeFigure 1 )

[0048] When the network is disconnected, the smartphone is offline and can hardly play any role. However, if the main control CPU is connected to a WiFi or Bluetooth module that can communicate with the smartphone, the multi-function terminal can use the resources of the smartphone to edit text information, input voice information, collect satellite positioning location coordinate information, etc., and transmit this information through the LDSW communication module. At the information receiving end, the smartphone connected to the multi-function terminal can be used to store, display or play the received information. (See Figure 2 )

[0049] As long as the main control CPU of the smart phone or the multi-function terminal is installed with an offline voice-to-text recognition software and a TTS software, the multi-function terminal can convert the voice into text before transmitting the voice information through the LDSW communication module; and the multi-function terminal as the voice receiver will convert the received text information into voice before playing it. This will greatly reduce the transmission time and power consumption of voice communication, increase the confidentiality of voice communication, reduce communication interference, and improve the efficiency of the use of wireless communication frequency. (See Figure 2 )

[0050] When using speech recognition software and speech synthesis software to convert speech to text transmission and then convert text to speech playback, in order to retain the voice and voiceprint characteristics of both parties as much as possible, it is also necessary to extract the voiceprint characteristics (voiceprint package) of both parties in advance, number them, and store them in the main control CPU of the multi-functional terminal used for voice intercom. Therefore, when we convert the voice information of the voice inputter into text information, we also need to attach the voiceprint package number of the voice inputter to the text information. As the voice receiver, the original voice of the voice inputter will be restored using the received text information and the corresponding voiceprint package information.

[0051] The multifunctional terminal's voice-to-text transmission method will greatly reduce the voice transmission time, and "speaking" and "listening" use two different hardware channels: microphone and speaker. Therefore, we can use time-division transmission to separate the "speaking" and "listening" text information transmission, so that duplex voice intercom communication between the multifunctional terminals can be realized on a single communication channel. (See Figure 3 )

[0052] In some cases, we don't need a long communication distance, but rather a higher transmission rate. Therefore, we can also add an LDSW communication module in the multifunctional terminal that operates in the 2.4G frequency band and is connected to the main control CPU. Of course, more LDSW communication modules operating in other frequency bands can also be added. This 2.4G communication module also operates in the LDSW low duty cycle communication mode and meets the unified standard requirements of the "Technical Requirements for Low Duty Cycle Internet of Things Intelligent Tag Communication System", and is used for low-power wireless two-way digital communication within a few hundred meters with various other LDSW intelligent tags operating in the 2.4G frequency band and meeting the above unified standard. The communication between the 2.4G LDSW communication module and other sensors, controllers, and locators connected with the 2.4G LDSW communication module will endow the multifunctional terminal with functions such as automatically transmitting and receiving road accident alarm information, search and rescue positioning function, telemetry and remote control, especially when used together with a smartphone. (See Figure 4 )

[0053] To enable the multifunctional terminal to function better usually, the main control CPU is also connected to a mobile network terminal for Internet of Things digital communication, such as a Cat1 series module; so that the multifunctional terminal becomes a network walkie-talkie or a low-cost telephone communication terminal when the network is working properly, and can receive other information including emergency broadcasts through the network. (See Figure 5 )

[0054] The present invention also provides a working method for a movable LDSW multifunctional wireless digital communication terminal that can be used in both normal and emergency situations. This method utilizes the functions endowed by the unified standard of the "Technical Requirements for Low Duty Cycle Internet of Things Intelligent Tag Communication System". When the LDSW communication module is in a non-working state, the LDSW communication module in the LDSW communication module adopts an ultra-low power consumption state of periodic sleep and listening for signals instantaneously on the designated channel after waking up. However, at any time when it needs to enter a certain working state, any LDSW communication module that initiates communication, including initiating voice intercom communication with another LDSW communication module or issuing an operation instruction to turn on and adjust the listening channel to an amplitude modulation and frequency modulation radio that is in a closed state and connected to the LDSW communication module, can continuously transmit wake-up instruction signals on its signal listening channel within a time period longer than the sleep-wake cycle of the LDSW communication module in the LDSW communication module, and catch the instant when the LDSW communication module in the LDSW communication module that is the communication object wakes up from sleep, and establish a communication connection with it, thereby greatly reducing the standby power consumption of the LDSW communication module in the LDSW communication module.

[0055] The multifunctional terminal also uses its built-in WiFi module or Bluetooth module to establish a wireless communication connection with a smartphone in an offline or online state at any time when needed, and utilizes various software and hardware resources of the smartphone to collect relevant information such as text information editing, voice information input, and satellite positioning coordinate positions, and transmits this information through the LDSW communication module. At the information receiving terminal, using the smartphone connected to the multifunctional terminal, the received information is stored, displayed, or played out to make full use of the resources of the smartphone in an offline state to reduce the cost of the multifunctional terminal.

[0056] When the multifunctional terminal is used for voice communication, this method also first converts voice transmission that requires a relatively high communication rate, long-term occupation of frequency resources, and long-term high-power consumption transmission into text transmission that only requires a relatively low communication rate, very short high-power consumption communication time, and frequency occupation time. This not only greatly reduces power consumption, improves the utilization efficiency of frequency resources, increases communication distance, enhances communication confidentiality, but also makes voice information relay transmission and connection to Beidou satellites simpler and easier.

[0057] Figure 6 It is a schematic diagram of various functions of a movable multi-functional LDSW wireless communication terminal for both peacetime and emergency use. For different applications, we can delete and adjust these functions to meet the needs of different scenario applications and achieve the maximum economic benefits.

[0058] Figure 7 It is the situation where the multifunctional terminal is used as a multi-functional urban Internet of Things gateway for both peacetime and emergency use. At this time:

[0059] A. The multifunctional terminal will be powered by an external power supply method (mains electricity or solar energy);

[0060] B. The LBSW communication module in the multifunctional terminal will adopt a duty cycle of one, that is, it will always be in a state of receiving signals on the working channel;

[0061] C. In order to communicate with more Internet of Things terminals, the multifunctional terminal will add one or more LDSW communication modules operating on different channels as needed, mainly 2.4G communication modules;

[0062] D. At this time, the amplitude modulation and frequency modulation radio, MP3 player, and the WiFi or Bluetooth module for connecting to a smartphone, as well as the relevant software for voice and text conversion, are no longer essential components of the multifunctional terminal;

[0063] E. The LDSW 433 MHz Sub-G wireless digital communication module is no longer used for voice intercom communication, but for communication between the Internet of Things gateway and the community / enterprise management center.

[0064] Figure 8 It is a schematic diagram of a dual-purpose civilian and emergency village and town disaster prevention, mitigation and relief broadcasting and intercom dispatching system. In the figure, there are three multi-functional terminals:

[0065] A. One is the multi-functional terminal A installed in the village and town broadcasting station, powered by solar energy, and transmitting the text information to be broadcast from the superior broadcasting station and the village leaders, including the command and dispatching information related to disaster prevention, resistance and relief;

[0066] B. One is the multi-functional terminal B carried by the village leaders. The village leader terminal can be connected to a smart phone, used for editing text information and displaying the information on the disaster prevention and relief site (such as displaying on the village leader's mobile phone whether each household has received the broadcast information); the village leader terminal can also collect information from the villagers through voice intercom, and according to the summary of the on-site situation, report the situation upward through the Beidou module connected to the village and town broadcasting station, and broadcast the command and dispatching information downward;

[0067] C. The movable multi-functional terminal C installed in the villagers' homes can directly receive the FM broadcast (including the emergency FM broadcast) from the radio station, the text information signal broadcast from the superior broadcasting station (including the text information of the emergency broadcast) and the command and dispatching text information sent by the village leaders through the village broadcasting station; after receiving the said text information, module C will automatically return a receipt indicating normal device operation to the village leaders through the LDSW digital channel of the village broadcast (this is usually done regularly to ensure normal device operation in case of emergency); if the villagers receive a prompt signal for the emergency broadcast and press the button to play the broadcast content, module C will return information to the village leader terminal through the village broadcasting station, indicating that the villagers have heard the emergency notice information.

[0068] In addition to receiving emergency broadcasts and command and dispatching orders in case of emergency, the above system can usually also be used for various communication connections (dual-purpose civilian and emergency) between the village committee and the villagers, and between the villagers, especially in remote rural areas where there is no signal or the signal is poor; modules B and C are usually also an entertainment terminal, which can play their favorite music using the random MP3; it can also query past call records, especially those during emergency disaster relief.

[0069] Figure 9It is a schematic diagram of the application of an intelligent management (people and things) "Internet of Everything" and intercom communication application system within communities, hospitals, nursing homes, enterprises and institutions. For example, in a hospital, each nurse duty desk has a communication management terminal screen, which can realize that each hospital bed, each doctor, and reporting emergencies to the leader within the associated range all have a user terminal. Each device, including at the infusion drip bottle, has a sensor terminal. The on-duty nurse can contact them or leave a message at any time according to needs. Each end-user can also contact the on-duty nurse or leave a message at any time. When the sensor terminal sends an alarm message, such as a hospital bed needs to change the infusion bottle, or there is an abnormality, including a help alarm message, etc., the on-duty nurse can clearly know and take timely actions. Moreover, all these alarm messages, the specific action information and time taken by the person at that time can be traced and queried later to clarify responsibilities. When the on-duty nurse leaves the duty desk due to reasons, he also has a portable terminal to receive automatic calls from the duty desk.

[0070] Figure 10 It is a schematic diagram of the application that replaces the traditional telephone communication system within the unit. It has the following outstanding advantages:

[0071] A. The terminal is simple, small in size, low in cost, and can add relevant functions according to needs, including adding communication channels, etc.;

[0072] B. It can be an internal call system that does not rely on the mobile public network and is free of charge;

[0073] C. It is confidential. Different from general intercom communication, except for the information broadcast by the leader to all subordinates, all point-to-point communications between the leader and subordinates are confidential;

[0074] D. Both parties can leave messages, and there are message reminders on their respective terminals;

[0075] E. It is beneficial to enterprise management: employees cannot communicate with each other;

[0076] F. The leader's terminal keeps call records and can be traced and queried;

[0077] G. Except that the leader's terminal generally cannot be moved, other employees' terminals can be moved, and they can also receive calls or messages from the leader when moving.

[0078] H. When the network is disconnected and the power is off, the system can still work (for both normal and emergency use).

[0079] I. When the user unit needs to make external phone calls due to business needs, the employee terminals engaged in external business can also achieve communication connections with the outside through the Cat1 mobile Internet of Things module and the enterprise management platform. This is an efficient and low-cost enterprise communication solution, which has the following advantages: low cost, lower power consumption, strong customization (not easily interfered, simple operation), data security, easy management: It can deploy a call recording function in the device or the background system. It can record call metadata (such as call time, duration, and phone numbers of both parties). It can implement strict permission management for call records and recordings, allowing only authorized personnel to access. It can set up log records to monitor access behavior. It provides real-time call monitoring or post-event spot checks. It can prevent the leakage of business information. It can ensure customer service quality. It is convenient to resolve disputes or complaints (verifying facts through call records).

[0080] The above are only the preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limitations on the present invention. The protection scope of the present invention should be subject to the scope defined by the claims. For those of ordinary skill in the art in this technical field, without departing from the spirit and scope of the present invention, several improvements and refinements can also be made, and these improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A portable LDSW multifunctional wireless communication terminal for both horizontal and emergency use, characterized in that: Any multifunctional terminal is provided with a unique ID number, and the multifunctional terminal comprises: At least one LDSW communication module that can be used for long-distance intercom communication, an audio jack that can be connected to a microphone and a speaker, an AM / FM radio or an MP3 music player connected to the LDSW communication module for receiving emergency broadcasts, a power supply, a main control CPU, and a digital screen with text input and display functions; or a set of knobs or buttons that provide users with communication object and communication function setting options through voice playback; The LDSW communication module works in a low duty cycle mode, and is configured as a 433 MHz low-frequency wireless communication module that can perform long-distance digital text and voice intercom communications with other LDSW communication modules, or an LDSW communication module that works on other frequency bands; when the LDSW communication modules are used for intercom communications with each other, the party initiating the intercom communications will use the ID number of the multifunctional terminal or its other identity number as the signal receiving address within a period of time greater than the sleep-wake cycle of the LDSW communication module as the intercom communication receiver, and continuously and repeatedly transmit a wake-up signal on a pre-specified signal monitoring channel, and establish a communication connection with the LDSW communication module as the signal receiver at the moment it wakes up from sleep, and tell the signal receiver to jump to a new channel, and use an encrypted method to perform intercom communications; The communication mode of the LDSW communication module includes point-to-point and / or point-to-multipoint; The audio jack is used to connect a headset for two-way voice communication and music appreciation, or a combination of a small speaker and a microphone that is fixedly placed for voice intercom and music appreciation; when it is connected to the LDSW communication module of the AM / FM radio, it turns on the FM / AM radio that was originally in a turned-off state and adjusts them to the emergency broadcast receiving channel by receiving the LDSW emergency broadcast wake-up signal transmitted by the broadcasting station.

2. According to claim 1, a portable LDSW multifunctional wireless communication terminal for both horizontal and emergency use, characterized in that: The main control CPU of the multifunctional terminal is configured with TTS software for converting text to speech, or the main control CPU is connected to a TTS chip; When the emergency broadcast transmits text information through the LDSW communication module, the LDSW communication module at the receiving end converts the received text information into voice through TTS, and then plays the voice.

3. The portable LDSW multifunctional wireless communication terminal for both horizontal and emergency use according to claim 1, characterized in that: The main control CPU is configured with artificial intelligence offline speech-to-text recognition software and TTS software. When the LDSW multi-function terminal is used for voice communication, the artificial intelligence offline speech-to-text recognition software first converts the voice received through the microphone connected to the voice jack into text, and then transmits it to the voice recipient using the LDSW communication module. The voice recipient then converts the received text information into voice through the TTS software and plays it through the speaker connected to the audio jack.

4. A portable LDSW multifunctional wireless communication terminal for both horizontal and emergency use according to claim 1, 2 or 3, characterized in that: The main control CPU is also connected to a WiFi or Bluetooth module; the WiFi or Bluetooth module is used to support the wireless connection between the multi-function terminal and the smart phone, so that the multi-function terminal can utilize the software and hardware resources of the smart phone to complete more information collection, calculation, editing and display, and transmit information through the LDSW communication module.

5. The portable LDSW multifunctional wireless communication terminal for both horizontal and emergency use according to claim 4, characterized in that: In the main control CPU of the smart phone or the multi-function terminal, at least one of the two is configured with offline speech-to-text recognition software and TTS software; When transmitting, the multifunctional terminal converts the speech into text and then transmits it using the LDSW communication module; When receiving, the multifunctional terminal converts the received text information into voice and then plays it.

6. The portable LDSW multifunctional wireless communication terminal for both horizontal and emergency use according to claim 5, characterized in that: The speech-to-text recognition software is matched with the pre-extraction and numbering of the voice print package of the voice recorder; When the voice information of the voice inputter is converted into text information, the voiceprint package coding code of the text information is also added; and in the multifunctional terminal as the voice receiver, the voiceprint package of the voice inputter and its corresponding code number information are pre-stored.

7. A portable LDSW multifunctional wireless communication terminal for both horizontal and emergency use according to claim 5 or 6, characterized in that: The multifunctional terminal utilizes the characteristic that the text transmission time is much shorter than the voice transmission time, so that it can realize duplex voice intercom communication by transmitting text information in different transmission directions separately.

8. The portable LDSW multifunctional wireless communication terminal for both horizontal and emergency use according to claim 4, characterized in that: The main control CPU is also connected to a second LDSW communication module, and the operating frequency band of the second LDSW communication module is the 2.4G frequency band.

9. The portable LDSW multifunctional wireless communication terminal for both horizontal and emergency use according to claim 1, characterized in that: The main control CPU is also connected to a mobile network terminal for Internet of Things digital communication.

10. A method for operating a portable LDSW multifunctional wireless communication terminal for both horizontal and emergency use, for operating the portable LDSW multifunctional wireless digital communication terminal for both horizontal and emergency use as claimed in any one of claims 1 to 9, characterized in that: When the multifunctional terminal is in a non-working state, the LDSW communication module in the multifunctional terminal enters a periodic sleep state, and after waking up, it monitors the low power consumption state of the signal moment; When any LDSW communication module needs to initiate communication, it will continuously and repeatedly send a wake-up command signal on its monitoring signal channel for a period of time greater than the sleep-wake cycle of the LDSW communication module as the communication object, and establish communication with it at the moment the LDSW communication module wakes up from sleep; When the LDSW communication module is used for intercom communication, the party initiating the intercom communication will use the ID number of the multifunctional terminal or its other identity number as the signal receiving address within a period of time greater than the sleep-wake cycle of the LDSW communication module as the intercom communication receiver, and continuously and repeatedly transmit a wake-up signal on a pre-designated signal monitoring channel; and establish communication with it at the moment of waking up from sleep, and tell the signal receiver to jump to a new channel, and use encryption to conduct intercom communication; The communication mode of the LDSW communication module includes point-to-point and / or point-to-multipoint.

11. The method for operating a mobile LDSW multifunctional wireless communication terminal for both horizontal and emergency use according to claim 10, characterized in that: The LDSW communication module also uses a WiFi module or a Bluetooth module to establish a wireless communication connection with an offline or online smartphone, and uses various software and hardware resources of the smartphone to collect, edit, process and display relevant information, and transmit information through the LDSW communication module.

12. According to claim 10 or 11, characterised in that When the multifunctional terminal is used for voice communication, the method also adopts a method of first converting the voice transmission which requires a higher communication rate, long-time occupation of frequency resources, and long-time high-power consumption transmission into a text transmission which only requires a lower communication rate, very short high-power consumption communication time and frequency occupation time. This method not only greatly reduces power consumption, improves the utilization efficiency of frequency resources, increases the communication distance, enhances the confidentiality of communication, but also makes voice information relay transmission and connection to Beidou satellites simpler and easier.

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