CN108966149B - Wireless help calling system based on mobile network and LPWAN communication - Google Patents
Wireless help calling system based on mobile network and LPWAN communication Download PDFInfo
- Publication number
- CN108966149B CN108966149B CN201811096281.XA CN201811096281A CN108966149B CN 108966149 B CN108966149 B CN 108966149B CN 201811096281 A CN201811096281 A CN 201811096281A CN 108966149 B CN108966149 B CN 108966149B
- Authority
- CN
- China
- Prior art keywords
- module
- lpwan
- mobile
- mobile network
- mobile terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004891 communication Methods 0.000 title claims abstract description 28
- 230000009429 distress Effects 0.000 claims abstract description 58
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000010295 mobile communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/029—Location-based management or tracking services
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/02—Alarms for ensuring the safety of persons
-
- 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
- G08B25/016—Personal emergency signalling and security systems
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/26—Cell enhancers or enhancement, e.g. for tunnels, building shadow
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
A wireless help calling system based on mobile network and LPWAN communication belongs to the technical field of wireless communication, and solves the problem that the existing wireless help calling system cannot work in an uncovered area of a mobile network due to external communication realized through the mobile network. The wireless calling system based on the mobile network and the LPWAN communication comprises a fixed end device and a plurality of mobile end devices, wherein the fixed end device is arranged in a coverage area of the mobile network, and the mobile end devices are carried by an active person. The LPWAN modules of the mobile terminal devices and the LPWAN modules of the fixed terminal devices form an LPWAN network, and the LPWAN network is accessed into the mobile network through the mobile network module of the fixed terminal device, so that the transmission of distress signals in the LPWAN network and the external transmission through the mobile network are realized.
Description
Technical Field
The invention relates to a wireless help calling system, and belongs to the technical field of wireless communication.
Background
In recent years, with the continuous development and progress of mobile communication technology, the number of mobile communication base stations in China is increasing, and the coverage area of a mobile network is also increasing, so that the normal communication of people in daily life and work is ensured to a great extent. However, for areas such as remote mountain areas, desert gobi and forests, the terrains of these areas are complicated, which is not conducive to the construction of mobile communication base stations, the coverage density of the mobile communication base stations is low, and it is difficult to realize the full coverage of the mobile network.
For people who often move in the field, such as field workers and outdoor lovers, there is a high probability that they will encounter dangerous situations where food and drinking is lacking, and in such dangerous situations, the life safety of the field workers will be extremely threatened. Therefore, the existing field personnel usually carry a wireless help calling system with them to ask for help when they are in dangerous situations. However, because the existing wireless distress systems are all based on the mobile network to realize external communication, the wireless distress systems cannot work normally in the uncovered area of the mobile network.
Disclosure of Invention
The invention provides a wireless help calling system based on mobile network and LPWAN communication, which aims to solve the problem that the existing wireless help calling system cannot work in an uncovered area of a mobile network due to external communication realized through the mobile network.
The wireless help calling system based on the communication between the mobile network and the LPWAN comprises a fixed end device and a plurality of mobile end devices;
the fixed end equipment is arranged in the coverage area of the mobile network and comprises a first control module, a personnel position information storage module, a mobile network module and an LPWAN module;
the mobile terminal equipment is carried by a person moving outside the coverage area of the mobile network and comprises a second control module, a positioning module and an LPWAN module;
the LPWAN modules of the mobile terminal equipment and the LPWAN modules of the fixed terminal equipment form an LPWAN network, and the LPWAN network is accessed to the mobile network through the first control module and the mobile network module in sequence;
each mobile terminal device is provided with a corresponding number;
for each mobile end device:
the positioning module is used for acquiring the position information of personnel carried by the mobile terminal equipment in real time and sending the position information to the second control module;
the second control module is used for encoding the received mobile terminal equipment personnel carrying position information according to the serial number of the mobile terminal equipment, transmitting the encoded mobile terminal equipment personnel carrying position information to the first control module through the LPWAN network according to the preset frequency, and transmitting the first distress signal and the encoded mobile terminal equipment personnel carrying real-time position information to the first control module through the LPWAN network according to the externally input distress starting signal;
the first control module is used for transferring the received coded mobile terminal equipment carrying personnel position information to the personnel position information storage module when the first distress signal is not received, sending a second distress signal to the rescue background through the mobile network and transferring the coded mobile terminal equipment carrying personnel real-time position information when the first distress signal is received, and sending a third distress signal and the coded mobile terminal equipment carrying personnel position information which is received last time to the rescue background through the mobile network when the first distress signal is not received and the coded mobile terminal equipment carrying personnel position information is not received within a preset time.
Preferably, the mobile network module is a GPRS module.
Preferably, the LPWAN module is a LoRa module.
Preferably, the mobile terminal device further comprises a power supply module, an ultrasonic beast driving module and a high-voltage module;
the power module is used for supplying power to the second control module, the positioning module, the LPWAN module, the ultrasonic beast driving module and the high-voltage module.
Preferably, the mobile terminal device further comprises a power control module;
the second control module is also used for controlling the power supply module to supply power for the ultrasonic beast driving module and the high-voltage module through the power supply control module according to the power supply signal of the high-power consumption module input from the outside.
Preferably, the mobile terminal device further comprises a speaker module and a display module;
the second control module is also used for sending a fourth distress signal and encoded real-time position information of personnel carried by the mobile terminal equipment to the first control module and the second control modules of other mobile terminal equipment through the LPWAN network according to the externally input high-power consumption module power supply signal;
the first control module is also used for sending a fifth distress signal to the rescue background through the mobile network according to the received fourth distress signal and forwarding the encoded real-time position information of the personnel carried by the mobile terminal equipment;
the loudspeaker module is used for sending out a distress call voice according to the fourth distress call signal received by the loudspeaker module;
the display module is used for displaying the position corresponding to the real-time position information of the personnel carried by the mobile terminal equipment after the received codes.
Preferably, the wireless distress system further includes a relay device, where the relay device is disposed at a predetermined location within a coverage area of the mobile network or a predetermined location outside the coverage area of the mobile network, and the LPWAN modules of the plurality of mobile terminal devices are networked with the LPWAN modules of the fixed terminal device through the relay device;
or the wireless distress system further comprises a first relay device and a second relay device, wherein the first relay device and the second relay device are respectively arranged at a preset position in the coverage area of the mobile network and a preset position outside the coverage area of the mobile network, and the LPWAN modules of the mobile terminal devices are sequentially networked through the second relay device and the LPWAN modules of the first relay device and the fixed end device.
The invention adopts a communication mode of combining a mobile network and an LPWAN to solve the problem that the existing wireless distress system cannot work in an uncovered area of the mobile network because external communication is realized through the mobile network, and provides a wireless distress system based on the communication of the mobile network and the LPWAN for active personnel in a certain range outside the coverage area of the mobile network or in an area with a blind area of the mobile network.
According to the wireless help calling system based on the mobile network and the LPWAN communication, the fixed end equipment is arranged in the coverage area of the mobile network, and the mobile end equipment is carried by an active person. The mobile terminal devices and the fixed terminal devices form an LPWAN network, and the LPWAN network is also accessed to the mobile network through the fixed terminal devices.
And the mobile terminal equipment sends the encoded mobile terminal equipment carrying personnel position information to the fixed terminal equipment according to the preset frequency.
When the mobile terminal equipment carries personnel in danger, the mobile terminal equipment carries personnel and sends a first distress signal and encoded real-time position information of the mobile terminal equipment carried personnel to the fixed end equipment through the mobile terminal equipment, and the fixed end equipment sends a second distress signal to the rescue background and forwards encoded real-time position information of the mobile terminal equipment carried personnel.
When the mobile terminal equipment carries personnel far away, and the carried mobile terminal equipment can deviate from the LPWAN network, the condition that the fixed end equipment does not receive the first distress signal and does not receive encoded mobile terminal equipment carried personnel position information within a preset time can occur, and in the condition, the fixed end equipment sends a third distress signal and the encoded mobile terminal equipment carried personnel position information received last time to a rescue background.
Drawings
The wireless distress system based on mobile network and LPWAN communication according to the present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings, wherein:
FIG. 1 is a networking diagram of a wireless distress system based on mobile network communication with an LPWAN according to an embodiment;
fig. 2 is a schematic block diagram of a mobile terminal device according to an embodiment.
Detailed Description
The wireless help calling system based on the communication between the mobile network and the LPWAN according to the invention will be further described with reference to the accompanying drawings.
Examples: the present embodiment is described in detail below with reference to fig. 1 and 2.
The wireless help calling system based on mobile network and LPWAN communication in this embodiment includes a fixed end device and a plurality of mobile end devices;
the fixed end equipment is arranged in the coverage area of the mobile network and comprises a first control module, a personnel position information storage module, a mobile network module and an LPWAN module;
the mobile terminal equipment is carried by a person moving outside the coverage area of the mobile network and comprises a second control module, a positioning module and an LPWAN module;
the LPWAN modules of the mobile terminal equipment and the LPWAN modules of the fixed terminal equipment form an LPWAN network, and the LPWAN network is accessed to the mobile network through the first control module and the mobile network module in sequence;
each mobile terminal device is provided with a corresponding number;
for each mobile end device:
the positioning module is used for acquiring the position information of personnel carried by the mobile terminal equipment in real time and sending the position information to the second control module;
the second control module is used for encoding the received mobile terminal equipment personnel carrying position information according to the serial number of the mobile terminal equipment, transmitting the encoded mobile terminal equipment personnel carrying position information to the first control module through the LPWAN network according to the preset frequency, and transmitting the first distress signal and the encoded mobile terminal equipment personnel carrying real-time position information to the first control module through the LPWAN network according to the externally input distress starting signal;
the first control module is used for transferring the received coded mobile terminal equipment carrying personnel position information to the personnel position information storage module when the first distress signal is not received, sending a second distress signal to the rescue background through the mobile network and transferring the coded mobile terminal equipment carrying personnel real-time position information when the first distress signal is received, and sending a third distress signal and the coded mobile terminal equipment carrying personnel position information which is received last time to the rescue background through the mobile network when the first distress signal is not received and the coded mobile terminal equipment carrying personnel position information is not received within a preset time.
The mobile network module of this embodiment is a GPRS module.
The LPWAN module of this embodiment is a LoRa module.
The positioning module of this embodiment is a GPS module.
The mobile terminal device of the embodiment further comprises a power supply module, an ultrasonic beast driving module and a high-voltage module;
the power supply module is used for supplying power to the second control module, the positioning module, the LPWAN module, the ultrasonic beast driving module and the high-voltage module;
the high-voltage module is used for sending out high-voltage pulses.
The mobile terminal device of the embodiment further includes a power control module;
the second control module is also used for controlling the power supply module to supply power for the ultrasonic beast driving module and the high-voltage module through the power supply control module according to the power supply signal of the high-power consumption module input from the outside.
The mobile terminal device of the embodiment further comprises a speaker module and a display module;
the second control module is also used for sending a fourth distress signal and encoded real-time position information of personnel carried by the mobile terminal equipment to the first control module and the second control modules of other mobile terminal equipment through the LPWAN network according to the externally input high-power consumption module power supply signal;
the first control module is also used for sending a fifth distress signal to the rescue background through the mobile network according to the received fourth distress signal and forwarding the encoded real-time position information of the personnel carried by the mobile terminal equipment;
the loudspeaker module is used for sending out a distress call voice according to the fourth distress call signal received by the loudspeaker module;
the display module is used for displaying the position corresponding to the real-time position information of the personnel carried by the mobile terminal equipment after the received codes.
When the mobile terminal equipment carrier encounters attack threat, the mobile terminal equipment carrier performs self-defense through the ultrasonic beast driving module or the high-voltage module. In this case, the mobile end device carrier may forget due to tension or not have time at all to send the first distress signal to the fixed end device through the mobile end device. Therefore, when the ultrasonic beast driving module or the high-voltage module is used, the mobile terminal equipment can automatically send fourth distress signals and encoded real-time position information of personnel carried by the mobile terminal equipment to the fixed terminal equipment and other mobile terminal equipment, so that rescue of the background and the peers is expected.
On the other hand, the power consumption of the ultrasonic beast driving module and the high-voltage module is high, which results in a sharp shortening of the endurance time of the mobile terminal device after the ultrasonic beast driving module or the high-voltage module starts to operate. Therefore, the power supply module can supply power for the ultrasonic beast driving module and the high-voltage module only when the second control module receives an externally input high-power consumption module power supply signal. By the arrangement, the mobile terminal equipment can be prevented from being quickly powered off due to the fact that a mobile terminal equipment carrier mistakenly touches the starting buttons of the ultrasonic beast driving module and the high-voltage module.
The wireless distress system based on mobile network and LPWAN communication according to this embodiment further includes a first relay device and a second relay device, which are respectively disposed at a predetermined position within a coverage area of the mobile network and a predetermined position outside the coverage area of the mobile network, where LPWAN modules of a plurality of mobile terminal devices are networked with LPWAN modules of a fixed terminal device sequentially through the second relay device and the first relay device.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the different dependent claims and the features described herein may be combined in ways other than as described in the original claims. It is also to be understood that features described in connection with separate embodiments may be used in other described embodiments.
Claims (7)
1. A wireless help calling system based on mobile network and LPWAN communication, characterized in that the wireless help calling system comprises a fixed end device and a plurality of mobile end devices;
the fixed end equipment is arranged in the coverage area of the mobile network and comprises a first control module, a personnel position information storage module, a mobile network module and an LPWAN module;
the mobile terminal equipment is carried by a person moving outside the coverage area of the mobile network and comprises a second control module, a positioning module and an LPWAN module;
the LPWAN modules of the mobile terminal equipment and the LPWAN modules of the fixed terminal equipment form an LPWAN network, and the LPWAN network is accessed to the mobile network through the first control module and the mobile network module in sequence;
each mobile terminal device is provided with a corresponding number;
for each mobile end device:
the positioning module is used for acquiring the position information of personnel carried by the mobile terminal equipment in real time and sending the position information to the second control module;
the second control module is used for encoding the received mobile terminal equipment personnel carrying position information according to the serial number of the mobile terminal equipment, transmitting the encoded mobile terminal equipment personnel carrying position information to the first control module through the LPWAN network according to the preset frequency, and transmitting the first distress signal and the encoded mobile terminal equipment personnel carrying real-time position information to the first control module through the LPWAN network according to the externally input distress starting signal;
the first control module is used for transferring the received coded mobile terminal equipment carrying personnel position information to the personnel position information storage module when the first distress signal is not received, sending a second distress signal to the rescue background through the mobile network and transferring the coded mobile terminal equipment carrying personnel real-time position information when the first distress signal is received, and sending a third distress signal and the coded mobile terminal equipment carrying personnel position information which is received last time to the rescue background through the mobile network when the first distress signal is not received and the coded mobile terminal equipment carrying personnel position information is not received within a preset time.
2. The wireless call for help system based on mobile network communication with LPWAN of claim 1, wherein the mobile network module is a GPRS module.
3. The wireless distress system based on mobile network communication with an LPWAN of claim 2, wherein the LPWAN module is a LoRa module.
4. The wireless distress system based on mobile network communication with an LPWAN of claim 3, wherein the mobile end device further comprises a power module, an ultrasonic beast driving module, and a high voltage module;
the power module is used for supplying power to the second control module, the positioning module, the LPWAN module, the ultrasonic beast driving module and the high-voltage module.
5. The wireless distress system based on mobile network communication with an LPWAN of claim 4, wherein the mobile end device further comprises a power control module;
the second control module is also used for controlling the power supply module to supply power for the ultrasonic beast driving module and the high-voltage module through the power supply control module according to the power supply signal of the high-power consumption module input from the outside.
6. The wireless distress system based on mobile network communication with an LPWAN of claim 5, wherein the mobile end device further comprises a speaker module and a display module;
the second control module is also used for sending a fourth distress signal and encoded real-time position information of personnel carried by the mobile terminal equipment to the first control module and the second control modules of other mobile terminal equipment through the LPWAN network according to the externally input high-power consumption module power supply signal;
the first control module is also used for sending a fifth distress signal to the rescue background through the mobile network according to the received fourth distress signal and forwarding the encoded real-time position information of the personnel carried by the mobile terminal equipment;
the loudspeaker module is used for sending out a distress call voice according to the fourth distress call signal received by the loudspeaker module;
the display module is used for displaying the position corresponding to the real-time position information of the personnel carried by the mobile terminal equipment after the received codes.
7. The wireless distress system based on mobile network to LPWAN communication of claim 6, further comprising a relay device disposed at a predetermined location within a coverage area of the mobile network or a predetermined location outside the coverage area of the mobile network, the LPWAN modules of the plurality of mobile end devices being networked with the LPWAN modules of the fixed end device via the relay device;
or the wireless distress system further comprises a first relay device and a second relay device, wherein the first relay device and the second relay device are respectively arranged at a preset position in the coverage area of the mobile network and a preset position outside the coverage area of the mobile network, and the LPWAN modules of the mobile terminal devices are sequentially networked through the second relay device and the LPWAN modules of the first relay device and the fixed end device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811096281.XA CN108966149B (en) | 2018-09-19 | 2018-09-19 | Wireless help calling system based on mobile network and LPWAN communication |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811096281.XA CN108966149B (en) | 2018-09-19 | 2018-09-19 | Wireless help calling system based on mobile network and LPWAN communication |
Publications (2)
Publication Number | Publication Date |
---|---|
CN108966149A CN108966149A (en) | 2018-12-07 |
CN108966149B true CN108966149B (en) | 2024-02-13 |
Family
ID=64471462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811096281.XA Active CN108966149B (en) | 2018-09-19 | 2018-09-19 | Wireless help calling system based on mobile network and LPWAN communication |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN108966149B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110187365B (en) * | 2019-05-24 | 2023-09-08 | Oppo广东移动通信有限公司 | Positioning method, device and system |
CN110224719B (en) * | 2019-06-25 | 2021-08-31 | Oppo广东移动通信有限公司 | Communication control method and related product |
CN113676860A (en) * | 2021-07-28 | 2021-11-19 | 深圳市沃特沃德信息有限公司 | Wearable device data transmission method and device based on LoRa and computer device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20090022829A (en) * | 2007-08-31 | 2009-03-04 | 이커스텍(주) | Real-time position recognition method and system in a ubiquitous environment |
KR20100136244A (en) * | 2009-06-18 | 2010-12-28 | (주)씨앤에스링크 | Realtime rescue system and method for employing the same |
CN105407457A (en) * | 2015-10-27 | 2016-03-16 | 中交北斗技术有限责任公司 | Method and system for carrying out location communication on visitor based on APP |
CN105430182A (en) * | 2015-11-10 | 2016-03-23 | 西安狂生电子科技有限公司 | Outdoor LAN communication system based on APP and communication equipment |
CN208657087U (en) * | 2018-09-19 | 2019-03-26 | 哈尔滨理工大学 | The wireless distress system communicated based on mobile network with LPWAN |
-
2018
- 2018-09-19 CN CN201811096281.XA patent/CN108966149B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20090022829A (en) * | 2007-08-31 | 2009-03-04 | 이커스텍(주) | Real-time position recognition method and system in a ubiquitous environment |
KR20100136244A (en) * | 2009-06-18 | 2010-12-28 | (주)씨앤에스링크 | Realtime rescue system and method for employing the same |
CN105407457A (en) * | 2015-10-27 | 2016-03-16 | 中交北斗技术有限责任公司 | Method and system for carrying out location communication on visitor based on APP |
CN105430182A (en) * | 2015-11-10 | 2016-03-23 | 西安狂生电子科技有限公司 | Outdoor LAN communication system based on APP and communication equipment |
CN208657087U (en) * | 2018-09-19 | 2019-03-26 | 哈尔滨理工大学 | The wireless distress system communicated based on mobile network with LPWAN |
Also Published As
Publication number | Publication date |
---|---|
CN108966149A (en) | 2018-12-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN108966149B (en) | Wireless help calling system based on mobile network and LPWAN communication | |
CN107902517A (en) | A kind of elevator calls for help pacifying device and system | |
CN103107832A (en) | Sub-terminal, parent-terminal and state-information synchronization method thereof | |
CN103136958A (en) | Method and system for announcing bus stop, mobile terminal and interaction method | |
CN105163271A (en) | Communication device | |
KR101060919B1 (en) | Automatic Distress Report System Using Zigbee Communication | |
CN202364319U (en) | Multi-mode communication support command system for electric power emergency | |
CN103139544A (en) | Internet protocol camera embedded in instant communication tool | |
CN101149861A (en) | Electric power facilities anti-theft radio network alarming system | |
CN102547218A (en) | Emergency site monitoring and control system | |
CN203466976U (en) | Underground double-mode wireless network system for mines | |
CN103138835A (en) | Multi-mode spot emergency communication system | |
CN210764543U (en) | Aeration system of small sewage treatment equipment with power-off alarm function based on LORA communication mode | |
CN105812016B (en) | A kind of communication means based on portable wireless transceiver device | |
CN205281686U (en) | Wireless deaf -mute's doorbell of intelligence | |
CN108288360A (en) | A kind of sewage disposal station-service warning system | |
CN204861548U (en) | Intelligence positioning and alarming bracelet of saving oneself | |
CN108156582A (en) | A kind of passive SOS callings deliverance apparatus, system and method based on bluetooth | |
CN201191878Y (en) | Embedded short message remote security monitoring apparatus | |
CN203086605U (en) | Network camera embedded in instant messaging tool | |
CN202475577U (en) | Mobile police room scheduling and commanding system | |
CN204031348U (en) | A kind of oil field video monitoring system based on WiFi | |
CN204731947U (en) | Mobile terminal monitoring alarm device | |
CN208327001U (en) | A kind of elevator inspection monitoring system based on NB-IoT | |
KR20120102472A (en) | Receiving alarm system for the mobile phone |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |