CN108156582A - A kind of passive SOS callings deliverance apparatus, system and method based on bluetooth - Google Patents
A kind of passive SOS callings deliverance apparatus, system and method based on bluetooth Download PDFInfo
- Publication number
- CN108156582A CN108156582A CN201711424993.5A CN201711424993A CN108156582A CN 108156582 A CN108156582 A CN 108156582A CN 201711424993 A CN201711424993 A CN 201711424993A CN 108156582 A CN108156582 A CN 108156582A
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- module
- calling
- deliverance apparatus
- bluetooth
- rescue
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Alarm Systems (AREA)
Abstract
The present invention discloses a kind of passive SOS callings deliverance apparatus, system and method based on bluetooth, which includes bluetooth locating module, kinetic energy power generation module, wireless transport module and audio receiving module;Bluetooth locating module establishes a connection with microprocessor, and bluetooth locating module is positioned for calling when deliverance apparatus is in indoor, and bluetooth locating module transmits indoor positioning parameter to microprocessor;Kinetic energy power generation module establishes a connection with microprocessor, and kinetic energy power generation module is used to provide power source for calling deliverance apparatus;Wireless transport module establishes a connection with microprocessor, and wireless transport module is used to call deliverance apparatus and server into row data communication;Audio receiving module establishes a connection with microprocessor, and audio receiving module is used to receive the audio-frequency information that user sends out to calling deliverance apparatus.Service life of the present invention is long, and antijamming capability is stronger, can be accurately positioned personnel positions;It could be formed with the family endowment relief pattern of benefit.
Description
Technical field
The present invention relates to emergency rescue technologies, and in particular to a kind of passive SOS callings deliverance apparatus based on bluetooth, system
And method.
Background technology
Accident, the security of the lives and property of the serious threat people, to normal social life and production active belt
To seriously affect.It is all the special disadvantaged group such as old man, children, the disabled that victim is most of in accident,
They are due on body physiological, and in weak position in accident, ability of withstanding natural calamities is by the very day of one's doom
System, it is easier to be injured by accident.When crisis occurs, mobile phone and computer etc. are current most effective emergency communications
Tool.However, as economy and safety factor, old man and child are often not equipped with mobile phone.Computer and Internet technology
It is higher due to the use of cost and complicated for operation, it is not that everybody can grasp, for disadvantaged group, no matter from cost
Or from the aspect of its ease for use, all it is difficult to comprehensively universal.Disadvantaged group cause due to lacking effective emergency communication tool
It can not seek external assistance in time, so as to cause many unnecessary injures and deaths and loss.
At present, in the market there are some emergency rescue devices, but the prior art is opened by active (mainly battery)
It closes and combines radio-frequency technique progress local call, partly with reference to real-time performance telecommunication, when deliverance apparatus power depletion, cause
Emergency can not use, and radio frequency is easily disturbed in addition, cause unstable, without positioning function, can not know the essence of person for help
True position.
Invention content
The purpose of the present invention is to provide a kind of passive SOS callings deliverance apparatus, system and methods based on bluetooth, pass through
Using passive techniques, avoid calling for help in vain caused by power supply invalid (battery is expired), it is possible to provide indoor and outdoor positions, accurate perception
Cry for help people position, with reference to wide area network by calling for help information call-home belong to and rescue facility at, improve distress call accuracy,
Effective and stability reduces maintenance cost.
To achieve the above object, the technical scheme is that:A kind of passive SOS calling deliverance apparatus based on bluetooth,
The calling deliverance apparatus is equipped with housing, and the enclosure interior is equipped with microprocessor, and the calling deliverance apparatus further includes bluetooth
Locating module, kinetic energy power generation module, wireless transport module and audio receiving module;The bluetooth locating module and the microprocessor
Device establishes a connection, and bluetooth locating module is positioned for calling when deliverance apparatus is in indoor, and bluetooth locating module passes
Defeated indoor positioning parameter is to the microprocessor;The kinetic energy power generation module establishes a connection with the microprocessor, kinetic energy
Electricity generation module is used to provide power source for calling deliverance apparatus;The wireless transport module is established with the microprocessor and is connected
Relationship, wireless transport module are used to call deliverance apparatus and server into row data communication;The audio receiving module with it is described
Microprocessor establishes a connection, and audio receiving module is used to receive the audio-frequency information that user sends out to calling deliverance apparatus.
A kind of passive SOS calling deliverance apparatus based on bluetooth as described above, the calling deliverance apparatus, which further includes, to be defended
Star locating module, satellite positioning module establish a connection with the microprocessor, and satellite positioning module fills for calling rescue
Carry out outdoor positioning is put, outdoor positioning parameter is transferred to microprocessor by satellite positioning module, and satellite positioning module uses GPS moulds
Block or big dipper module.
A kind of passive SOS calling deliverance apparatus based on bluetooth as described above, the bluetooth locating module use bluetooth
5.0BLE module.2 times of BLE bandwidth of bluetooth 5.0BLE modules are promoted:Increase in the PHY of the 1Mbps of low-power consumption BLE4.2 optional
LE Coded modulation demodulation systems support 125kbps and 500kbps, while also add the PHY of an optional 2Mbps.It is logical
News distance promotes 4 times:Reducing while bandwidth promotes communication distance still keeps power consumption constant, but also allows maximum output
Power is promoted to 100mW from 10mW before.Improve 8 times of broadcast data capacity:It is promoted from 31 bytes of low-power consumption BLE4.2
37 broadcast channels are extended to 255 bytes, and by 3 original broadcast channels.Increase channel selecting algorithm #2.Detection can
The time slot of transmitting and receiving and notify other bluetooth equipments.BLE is the abbreviation of bluetooth low energy consumption.Bluetooth low energy consumption technologies
Be low cost, short distance, interoperable robustness wireless technology, be operated in exempt from license 2.4GHz ISM radio frequency bands.
A kind of passive SOS calling deliverance apparatus based on bluetooth as described above, the kinetic energy power generation module use
PM4250 self power generation modules.The self power generation module uses electromagnetic induction electricity generating principle, the slight flat movement that pressing generates every time,
The energy more than 200uJ can be generated, available for the power supply of low-power consumption product, replaces traditional battery, that is, eliminates the later stage
Replace the cost environmental protection again of battery.
A kind of passive SOS calling deliverance apparatus based on bluetooth as described above, the calling deliverance apparatus further include by
Key module, the key-press module establish a connection with the microprocessor, and key-press module is for user by button to calling
Deliverance apparatus is called.
A kind of passive SOS calling deliverance apparatus based on bluetooth as described above, the wireless transport module use Wi-Fi
Module or 3G/4G/5G modules.
The present invention also provides a kind of passive SOS based on bluetooth to call rescue system, and the calling rescue system includes upper
Calling deliverance apparatus is stated, the calling rescue system further includes server, rescue facility's terminal and family members' handheld terminal, the clothes
Business device establishes a connection with the calling deliverance apparatus, and server is equipped with message processing module and information sending module, information
Processing module is used to handle the call information data of calling deliverance apparatus that server receives;Described information sending module
For by treated, call information to be sent to rescue facility's terminal and family members' handheld terminal;Rescue facility's terminal with it is described
Server establishes a connection, and rescue facility's terminal carries out user rescue use for rescue facility, and rescue facility's terminal is set
There are the first receiving module and the first display module, the first receiving module receives the calling of server transmission for rescue facility's terminal
Information data, the call information data that first display module sends for rescue facility's terminal display server;The family
Belong to handheld terminal to establish a connection with the server, family members' handheld terminal carries out user rescue for user family members to be made
With family members' handheld terminal is equipped with the second receiving module and the second display module, and second receiving module holds end for family members
End receives the call information data that server is sent, and second display module sends for family members' handheld terminal display server
Call information data.
A kind of passive SOS calling rescue systems based on bluetooth as described above, rescue facility's terminal, which is arranged on, to be rescued
Mechanism monitoring center is helped, rescue facility's terminal uses computer, and family members' handheld terminal is held by user family members, and family members hold end
End is using mobile phone or tablet computer.
The present invention also provides a kind of passive SOS based on bluetooth to call rescue mode, and the calling rescue mode is using upper
Calling deliverance apparatus is stated, is realized by above-mentioned calling rescue system, the calling rescue mode includes the following steps:
Step 1:User calls calling deliverance apparatus by key-press module, and calling deliverance apparatus is determined by bluetooth
Position module or satellite positioning module obtain the location information parameter described in user;
Step 2:The location information parameter of reception is occurred by wireless transport module to server, service microprocessor
Device is handled the call information of reception by message processing module;
Step 3:By treated, call information is sent to rescue facility's end to message processing module by information sending module
End or family members' handheld terminal;
Step 4:Second receiving module of the first receiving module of rescue facility's terminal or family members' handheld terminal receives user
Second display module of call information, the first display module of rescue facility's terminal or family members' handheld terminal shows user's call time
And location information, it is sued and laboured by rescue facility or family members.
A kind of passive SOS calling rescue modes based on bluetooth as described above, in the step 1, user passes through voice
Calling deliverance apparatus is called, when user is in it is indoor when obtain by bluetooth locating module the location information of user, when with
The location information of user is obtained when family is in outdoor by satellite positioning module.
The invention has the advantages that:Using kinetic energy self-powered technology with bluetooth combine, realize interior SOS call and into
The information that line position puts positioning is sent, and solves the problems, such as calling SOS system power supplies, does not need to replace battery, installation site is unrestricted
Or can carry at any time, bluetooth location technology solves the problems, such as indoor location where calling personnel, with the battery powered SOS systems of tradition
System compares, and eliminates battery, and long product lifecycle solves to replace battery problems;Using Bluetooth technology 2.4G frequency ranges more
Stablize, antijamming capability is stronger;Personnel positions can be accurately positioned by bluetooth location technology;Technology of Internet of things is crossed by alarm signal
Breath is reported and submitted by data or short message to relatives or rescue facility in time, could be formed with the family endowment relief pattern of benefit.
Description of the drawings
Fig. 1 is that the passive SOS based on bluetooth calls deliverance apparatus schematic diagram;
Fig. 2 is that the passive SOS based on bluetooth calls rescue system schematic diagram;
Fig. 3 is that the passive SOS based on bluetooth calls rescue mode flow chart.
Specific embodiment
The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention..
As shown in Figure 1, a kind of passive SOS calling deliverance apparatus based on bluetooth, the calling deliverance apparatus are equipped with housing,
The enclosure interior be equipped with microprocessor 1, it is described calling deliverance apparatus further include bluetooth locating module 2, kinetic energy power generation module 3,
Wireless transport module 4 and audio receiving module 5;The bluetooth locating module 2 establishes a connection with the microprocessor 1, blue
Tooth locating module 2 is positioned for calling when deliverance apparatus is in indoor, and bluetooth locating module 2 transmits indoor positioning parameter and arrives
The microprocessor 1;The kinetic energy power generation module 3 establishes a connection with the microprocessor 1, and kinetic energy power generation module 3 is used for
Power source is provided for calling deliverance apparatus;The wireless transport module 4 establishes a connection with the microprocessor 1, wirelessly
Transmission module 4 is used to call deliverance apparatus and server into row data communication;The audio receiving module 5 and the microprocessor
1 establishes a connection, and audio receiving module 5 is used to receive the audio-frequency information that user sends out to calling deliverance apparatus.
In one embodiment of passive SOS calling deliverance apparatus based on bluetooth, the calling deliverance apparatus, which further includes, to be defended
Star locating module 6, satellite positioning module 6 establish a connection with the microprocessor 1, and satellite positioning module 6 is rescued for calling
Shaking apparatus carries out outdoor positioning, and outdoor positioning parameter is transferred to microprocessor 1 by satellite positioning module 6, and satellite positioning module 6 is adopted
With GPS module or big dipper module.
In one embodiment of passive SOS calling deliverance apparatus based on bluetooth, the bluetooth locating module 2 uses bluetooth
5.0BLE module.2 times of BLE bandwidth of bluetooth 5.0BLE modules are promoted:Increase in the PHY of the 1Mbps of low-power consumption BLE4.2 optional
LE Coded modulation demodulation systems support 125kbps and 500kbps, while also add the PHY of an optional 2Mbps.It is logical
News distance promotes 4 times:Reducing while bandwidth promotes communication distance still keeps power consumption constant, but also allows maximum output
Power is promoted to 100mW from 10mW before.Improve 8 times of broadcast data capacity:It is promoted from 31 bytes of low-power consumption BLE4.2
37 broadcast channels are extended to 255 bytes, and by 3 original broadcast channels.Increase channel selecting algorithm #2.Detection can
The time slot of transmitting and receiving and notify other bluetooth equipments.BLE is the abbreviation of bluetooth low energy consumption.Bluetooth low energy consumption technologies
Be low cost, short distance, interoperable robustness wireless technology, be operated in exempt from license 2.4GHz ISM radio frequency bands.
What bluetooth locating module mainly utilized is the function of the Beacon broadcast of bluetooth 5.0.Indoors, fixed point arrangement
Beacon base stations.These bluetooths Beacon base stations constantly send Beacon broadcasting packets (message includes transmission power).It carries blue
After the terminal device of 5.0 module of tooth receives Beacon broadcasting packets, reception power is measured, is brought into power attenuation and apart from pass
In the function of system, the distance apart from the Beacon base stations is calculated.Utilize the distance apart from multiple Beacon base stations, you can realize
The function of multipoint positioning.
In one embodiment of passive SOS calling deliverance apparatus based on bluetooth, the kinetic energy power generation module 3 uses
PM4250 self power generation modules.The self power generation module uses electromagnetic induction electricity generating principle, the slight flat movement that pressing generates every time,
The energy more than 200uJ can be generated, available for the power supply of low-power consumption product, replaces traditional battery, that is, eliminates the later stage
Replace the cost environmental protection again of battery.
Based on bluetooth passive SOS calling deliverance apparatus one embodiment in, it is described calling deliverance apparatus further include by
Key module 7, the key-press module 7 establish a connection with the microprocessor 1, and key-press module 7 passes through button pair for user
Calling deliverance apparatus is called.
In one embodiment of passive SOS calling deliverance apparatus based on bluetooth, the wireless transport module 4 uses Wi-
Fi modules or 3G/4G/5G modules.
Referring to Fig. 2, the present invention also provides a kind of passive SOS based on bluetooth to call rescue system, the calling rescue system
System includes above-mentioned calling deliverance apparatus 8, and the calling rescue system further includes server 9, rescue facility's terminal 10 and family members' hand
Terminal 11 is held, the server 9 establishes a connection with the calling deliverance apparatus 8, and server 9 is equipped with message processing module 12
With information sending module 13, message processing module 12 is used for the call information data of calling deliverance apparatus 8 received to server 9
It is handled;Described information sending module 13 is for by treated, call information to be sent to rescue facility's terminal 10 and family members' hand
Hold terminal 11;Rescue facility's terminal 10 establishes a connection with the server 9, and rescue facility's terminal 10 is used for rescuing machine
Structure carries out user rescue use, and rescue facility's terminal 10 is equipped with the first receiving module 15 and the first display module 14, and first connects
The call information data that module 15 receives the transmission of server 9 for rescue facility's terminal 10 is received, first display module 14 is used
In the call information data that 10 display server 9 of rescue facility's terminal is sent;Family members' handheld terminal 11 and the server 9
It establishes a connection, family members' handheld terminal 11 uses when being rescued for user family members user, and family members' handheld terminal 11 is set
There are the second receiving module 16 and the second display module 17, second receiving module 16 receives service for family members' handheld terminal 11
The call information data that device 9 is sent, second display module 17 are exhaled for what 11 display server 9 of family members' handheld terminal was sent
It is information data.
In one embodiment of passive SOS calling rescue systems based on bluetooth, rescue facility's terminal 10 is arranged on
Rescue facility's monitoring center, rescue facility's terminal 10 use computer, and family members' handheld terminal 11 is held by user family members, family members
Handheld terminal 11 uses mobile phone or tablet computer.
Referring to Fig. 3, the present invention also provides a kind of passive SOS based on bluetooth to call rescue mode, the calling rescue party
Method uses above-mentioned calling deliverance apparatus 8, is realized by above-mentioned calling rescue system, and the calling rescue mode includes following step
Suddenly:
S1:User calls calling deliverance apparatus 8 by key-press module, and calling deliverance apparatus 8 is positioned by bluetooth
Module 2 or satellite positioning module 6 obtain the location information parameter described in user;
S2:The location information parameter of reception is occurred by wireless transport module 4 to server 9, server microprocessor 1
9 are handled the call information of reception by message processing module 12;
S3:By treated, call information is sent to rescue facility's end to message processing module 12 by information sending module 13
End 10 or family members' handheld terminal 11;
S4:Second receiving module 16 of 10 first receiving module 15 of rescue facility's terminal or family members' handheld terminal 11 receives
Second display module 17 of user's call information, 10 first display module 14 of rescue facility's terminal or family members' handheld terminal 11 is shown
User's call time and location information, are sued and laboured by rescue facility or family members.
In one embodiment of passive SOS calling rescue modes based on bluetooth, in the S1, user is by voice to exhaling
Deliverance apparatus 8 is made to be called, when user is in it is indoor when obtain by bluetooth locating module 2 location information of user, work as user
The location information of user is obtained during in outdoor by satellite positioning module 6.
The present invention is combined using kinetic energy self-powered technology with Bluetooth technology, is realized that interior SOS is called and carried out position and is determined
The transmission of position information solves the problems, such as calling SOS system power supplies, does not need to replace battery, installation site is unrestricted or can be at any time
It carrying, bluetooth location technology solves the problems, such as indoor location where calling personnel, together the battery powered SOS systematic comparisons of tradition,
Battery is eliminated, long product lifecycle solves to replace battery problems;More stablized using the 2.4G frequency ranges of Bluetooth technology, resisted
Interference performance is stronger;Personnel positions can be accurately positioned by bluetooth location technology;Warning message is led to by technology of Internet of things
It crosses data or short message to report and submit in time to relatives or rescue facility, could be formed with the family endowment relief pattern of benefit.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention belong to the scope of protection of present invention.
Claims (10)
1. a kind of passive SOS calling deliverance apparatus based on bluetooth, the calling deliverance apparatus are equipped with housing, the enclosure interior
Equipped with microprocessor, it is characterised in that:The calling deliverance apparatus further includes bluetooth locating module, kinetic energy power generation module, wireless
Transmission module and audio receiving module;The bluetooth locating module establishes a connection with the microprocessor, bluetooth positioning mould
Block is positioned for calling when deliverance apparatus is in indoor, and bluetooth locating module transmits indoor positioning parameter to the microprocessor
Device;The kinetic energy power generation module establishes a connection with the microprocessor, and kinetic energy power generation module is used for as calling deliverance apparatus
Power source is provided;The wireless transport module establishes a connection with the microprocessor, and wireless transport module is used to call
Deliverance apparatus and server are into row data communication;The audio receiving module establishes a connection with the microprocessor, audio
Receiving module is used to receive the audio-frequency information that user sends out to calling deliverance apparatus.
2. a kind of passive SOS calling deliverance apparatus based on bluetooth according to claim 1, it is characterised in that:It is described to exhale
Deliverance apparatus is made to further include satellite positioning module, satellite positioning module establishes a connection with the microprocessor, satellite positioning
Module carries out outdoor positioning for calling deliverance apparatus, and outdoor positioning parameter is transferred to microprocessor, defended by satellite positioning module
Star locating module uses GPS module or big dipper module.
3. a kind of passive SOS calling deliverance apparatus based on bluetooth according to claim 1, it is characterised in that:The indigo plant
Tooth locating module uses bluetooth 4.0BLE modules.
4. a kind of passive SOS calling deliverance apparatus based on bluetooth according to claim 1, it is characterised in that:It is described dynamic
Energy electricity generation module uses PM4250 self power generation modules.
5. a kind of passive SOS calling deliverance apparatus based on bluetooth according to claim 1, it is characterised in that:It is described to exhale
Deliverance apparatus is made to further include key-press module, the key-press module establishes a connection with the microprocessor, and key-press module is used for
User calls calling deliverance apparatus by button.
6. a kind of passive SOS calling deliverance apparatus based on bluetooth according to claim 1, it is characterised in that:The nothing
Line transmission module uses Wi-Fi module or 3G/4G/5G modules.
7. a kind of passive SOS calling rescue systems based on bluetooth, the calling rescue system include such as claim 1 to 6 times
One calling deliverance apparatus, it is characterised in that:The calling rescue system further includes server, rescue facility's terminal and family
Belong to handheld terminal, the server with it is described calling deliverance apparatus establish a connection, server be equipped with message processing module with
Information sending module, message processing module are used at the call information data of calling deliverance apparatus received to server
Reason;Described information sending module is for by treated, call information to be sent to rescue facility's terminal and family members' handheld terminal;Institute
It states rescue facility's terminal to establish a connection with the server, rescue facility's terminal rescues user for rescue facility
It uses, rescue facility's terminal is equipped with the first receiving module and the first display module, and the first receiving module is used for rescue facility's terminal
The call information data that server is sent is received, first display module sends for rescue facility's terminal display server
Call information data;Family members' handheld terminal establishes a connection with the server, and family members' handheld terminal is used for user house
Category carries out user rescue use, and family members' handheld terminal is equipped with the second receiving module and the second display module, and described second receives
Module receives the call information data of server transmission for family members' handheld terminal, and second display module holds for family members
The call information data that terminal display server is sent.
8. a kind of passive SOS calling rescue systems based on bluetooth according to claim 7, it is characterised in that:It is described to rescue
It helps mechanism terminal and is arranged on rescue facility's monitoring center, rescue facility's terminal uses computer, and family members' handheld terminal is by user
Family members hold, and family members' handheld terminal uses mobile phone or tablet computer.
9. a kind of passive SOS calling rescue modes based on bluetooth, the calling rescue mode use such as claim 1 to 6 times
One calling deliverance apparatus is realized by calling rescue system as described in any one of claim 7 to 8, it is characterised in that:
The calling rescue mode includes the following steps:
Step 1:User calls calling deliverance apparatus by key-press module, and calling deliverance apparatus passes through bluetooth positioning mould
Block or satellite positioning module obtain the location information parameter described in user;
Step 2:By the location information parameter of reception by wireless transport module generation to server, server leads to microprocessor
Message processing module is crossed to handle the call information of reception;
Step 3:Message processing module will treated call information by information sending module be sent to rescue facility's terminal or
Family members' handheld terminal;
Step 4:Second receiving module of the first receiving module of rescue facility's terminal or family members' handheld terminal receives user's calling
Second display module of information, the first display module of rescue facility's terminal or family members' handheld terminal shows user's call time and position
Confidence ceases, and is sued and laboured by rescue facility or family members.
10. a kind of passive SOS calling rescue modes based on bluetooth according to claim 9, it is characterised in that:The step
In rapid one, user calls calling deliverance apparatus by voice, when user is in it is indoor when obtained by bluetooth locating module
The location information of user, when user is in it is outdoor when obtain by satellite positioning module the location information of user.
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CN109831739A (en) * | 2019-03-19 | 2019-05-31 | 王业坤 | A kind of passive SOS calling deliverance apparatus, system and method based on less radio-frequency |
CN114979969A (en) * | 2022-02-25 | 2022-08-30 | 深圳市佳润鑫通信技术有限公司 | Call-for-help information interactive transmission method and device, electronic equipment and readable storage medium |
CN114979969B (en) * | 2022-02-25 | 2024-05-28 | 深圳市佳润鑫通信技术有限公司 | Call-for-help information interactive transmission method and device, electronic equipment and readable storage medium |
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