[go: up one dir, main page]

CN110191313B - Wireless ad hoc network construction method - Google Patents

Wireless ad hoc network construction method Download PDF

Info

Publication number
CN110191313B
CN110191313B CN201910352897.7A CN201910352897A CN110191313B CN 110191313 B CN110191313 B CN 110191313B CN 201910352897 A CN201910352897 A CN 201910352897A CN 110191313 B CN110191313 B CN 110191313B
Authority
CN
China
Prior art keywords
loose
elastic sheet
wireless
camera device
disaster
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
Application number
CN201910352897.7A
Other languages
Chinese (zh)
Other versions
CN110191313A (en
Inventor
邓华
卿光弼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Heng'an Alarming Equipment Making Co ltd
Original Assignee
Chengdu Heng'an Alarming Equipment Making Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Heng'an Alarming Equipment Making Co ltd filed Critical Chengdu Heng'an Alarming Equipment Making Co ltd
Priority to CN201910352897.7A priority Critical patent/CN110191313B/en
Publication of CN110191313A publication Critical patent/CN110191313A/en
Application granted granted Critical
Publication of CN110191313B publication Critical patent/CN110191313B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02Alarms for ensuring the safety of persons
    • G08B21/10Alarms for ensuring the safety of persons responsive to calamitous events, e.g. tornados or earthquakes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/18Self-organising networks, e.g. ad-hoc networks or sensor networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Environmental & Geological Engineering (AREA)
  • Multimedia (AREA)
  • Alarm Systems (AREA)

Abstract

The invention relates to a self-organizing network application technology, and aims to provide a wireless self-organizing network construction method which is used for constructing a disaster site monitoring and early warning system. The technical scheme of the invention is characterized in that: the method comprises the steps of monitoring key disaster parts by using a camera device, prompting on-site personnel evacuation by using an alarm device, bearing and installing the camera device and the alarm device by using a bearing platform, sending data to a server by using the camera device through a wireless receiving and sending terminal, and sending instructions to the camera device and the alarm device by using the server through the wireless receiving and sending terminal. Compared with the common wireless network, the wireless network system does not need to add any network infrastructure, does not need to wire among the wireless transceiving modules, is more convenient to install and move, has better robustness, and is suitable for being quickly constructed and implemented on a disaster site, so that the work of quickly assisting earthquake relief work and the like is carried out. The invention has the functions of video monitoring, secondary disaster early warning, providing basis for disaster relief decision command and the like.

Description

Wireless ad hoc network construction method
Technical Field
The invention relates to a self-organizing network application technology, in particular to a method for establishing a self-organizing network used in the field of disaster monitoring.
Background
A wireless Ad Hoc network (manet) is a technology different from a conventional wireless communication network. The network is a multi-hop mobility peer-to-peer network which is composed of dozens of nodes to hundreds of nodes, adopts a wireless communication mode and is dynamically networked. The aim is to transport multimedia information streams with quality of service requirements by means of dynamic routing and mobility management techniques. Usually the nodes have a constant energy supply.
In contrast to cellular networks, inter-node communication in wireless ad-hoc networks does not rely on any communication infrastructure, and the entire network operates in a distributed manner. A wireless self-organizing network completes the establishment and maintenance of the network by means of mutual cooperation among nodes, and the nodes can be connected into or disconnected from the network at any time. All nodes and wireless channels between nodes in a wireless ad hoc network form the topology of the network. The design of an applicable network topology and a networking method thereof are key technical points of the wireless self-organizing network. The design of the network topology and the networking method thereof directly influences the quality of key network performance indexes such as node capacity, expandability, coverage, network bandwidth, data transmission delay, routing protocol performance and the like of the wireless self-organizing network. A well-designed wireless self-organizing network topology and a networking method thereof can adapt to the dynamic change of the network topology and provide better network performance indexes.
In natural disaster relief sites such as earthquakes, debris flows and fires, since no infrastructure such as a base station and the internet can be used, the wireless ad hoc network type wireless disaster relief system is more suitable for communication, disaster monitoring and early warning and the like; communication between rescue teams and equipment needing communication can also be established through a mobile ad hoc network without relying on a land or satellite communication system. Therefore, the wireless ad hoc network has unique advantages and applicability in earthquake relief occasions. However, at present, there is no ad hoc network construction method and technique which are particularly suitable for disaster sites.
Disclosure of Invention
The invention aims to provide a wireless ad hoc network construction method which is suitable for constructing a disaster site monitoring and early warning system.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a wireless ad hoc network construction method is used for constructing a disaster site monitoring and early warning system, and comprises the following steps:
monitoring key parts of the disaster by using a camera device,
the alarm device is used for prompting the field to prompt people to evacuate,
the camera device and the alarm device are carried and installed by a bearing platform;
the camera device sends data to a server through a wireless transceiver terminal;
and the server sends instructions to the camera device and the alarm device through the wireless transceiving terminal.
Preferably, the wireless transceiver terminal adopts an 802.11b/g communication protocol to perform data transceiving; and the server is used for communicating with the mobile terminals of the persons participating in disaster relief.
Preferably, the camera device is a dual-CCD infrared zoom digital high-definition camera, an image acquisition card is disposed in the camera device, and the image acquisition card compresses the acquired video data by using the MPEG4 standard.
Preferably, the output end of the server is connected with the input end of the display module, and the server sends data to the display module.
Preferably, the bearing platform comprises an omnidirectional digital high-precision tripod head; the alarm device comprises an alarm lamp and a loudspeaker, wherein the alarm lamp and the loudspeaker are consistent with the direction of a camera of the camera device and are always exposed at an easily observable position along with the rotation of the holder when necessary.
Preferably, the bearing platform is provided with a quick installation device which is quickly installed on a rod piece or a wall surface, the quick installation device comprises a mounting plate fixedly connected to the bottom of the bearing platform, the mounting plate is provided with a fixing hole and a first connecting hole, one side of the mounting plate is connected with a loose-leaf plate through a loose leaf, the loose-leaf plate is provided with a second connecting hole, and after the loose-leaf plate rotates towards the back of the mounting plate, the positions of the second connecting hole and the first connecting hole are symmetrically arranged on two sides of the rotating direction of the loose-leaf plate relative to the fixing hole; the U-shaped cut is arranged on the loose-leaf plate, the U-shaped elastic sheet in the U-shaped cut slightly extends out of the back of the loose-leaf plate, and a rod piece fixing clamp used for mounting and rotating on a rod piece is inserted between the U-shaped elastic sheet and the back of the loose-leaf plate.
Preferably, the top of the rod fixing clamp is an arched fixing elastic sheet, the back of the fixing elastic sheet is provided with an insertion groove for inserting the U-shaped elastic sheet, the lower end of the fixing elastic sheet is fixedly connected with the vertical elastic sheet, and the lower end of the vertical elastic sheet elastically abuts against the rod body of the rod, namely, the rod fixing clamp main body is formed by connecting the fixing elastic sheet and the vertical elastic sheet in a T shape.
Preferably, friction plates are fixed on the surfaces of the fixed elastic pieces and the lower ends of the vertical elastic pieces.
Preferably, the hinge plate has a bending part protruding toward the plate surface and penetrating the entire hinge plate up and down at a position close to the hinge.
Preferably, alarm device include alarm lamp and loudspeaker, fixed connection is on the cushion cap, and distribute in the camera device left and right sides.
The invention has the following beneficial effects: compared with the common wireless network, the wireless network system does not need to add any network infrastructure, does not need to wire among the wireless transceiving modules, is more convenient to install and move, has better robustness, and is suitable for being quickly constructed and implemented in disaster sites, and carrying out the work of quickly assisting earthquake relief work and the like. The invention has the functions of video monitoring, secondary disaster early warning, providing basis for disaster relief decision command and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the platform;
FIG. 3 is a partial right sectional view of the cap after connecting the rods.
In the figure: the system comprises a camera device 1, an alarm device 2, a bearing platform 3, a wireless transceiving terminal 4, a server 5, a mobile communication terminal 6, a display module 7, a mounting plate 8, a fixing hole 9, a first connecting hole 10, a loose-leaf plate 11, a U-shaped elastic sheet 12, a second connecting hole 13, a rod piece fixing clamp 14, an alarm lamp 15, a loudspeaker 16, a fixing elastic sheet 17, an insertion groove 18, a vertical elastic sheet 19, a friction plate 20 and a bending part 21.
Detailed Description
As shown in fig. 1-3, a method for constructing a wireless ad hoc network is used for constructing a disaster site monitoring and early warning system, and the technical scheme includes the following steps:
the method comprises the steps of monitoring key parts of disasters by using a camera device 1, wherein the camera device 1 is a double-CCD infrared zooming digital high-definition camera, an image acquisition card is arranged in the camera device 1, the image acquisition card compresses acquired video data by adopting an MPEG4 standard, and the camera device 1 sends the data to a server 5 through a wireless receiving and sending terminal 4. During working, the plurality of camera devices 1 monitor key areas in real time, finally send the interactive and compressed picture data to the wireless receiving and sending terminal 4, receive instructions from the wireless receiving and sending terminal, and perform monitoring angle adjustment and sending frequency adjustment, so that the effect of better monitoring relevant areas in real time is realized.
The server 5 sends an instruction to the camera device 1 and the alarm device 2 through the wireless transceiver terminal 4, the wireless transceiver terminal 4 receives and transmits data by adopting an 802.11b/g communication protocol, and communicates with the mobile terminal 6 of the person involved in disaster relief by using the server 5, and the output end of the server 5 is connected with the input end of the display module 7 and sends the data to the display module 7. The commander checks the received data from the display module 7, and after a decision-making issuing instruction, the instruction is transmitted to the mobile terminal 6, the camera device 1 and the alarm device 2 of the personnel participating in disaster relief through the server 5 and the wireless receiving and transmitting terminal, so that the effects of immediate and accurate command, quick information circulation and high-efficiency and accurate rescue are achieved, in addition, wiring is not needed among the wireless receiving and transmitting modules, the installation and the migration are more convenient, the system has better robustness, and a better earthquake relief effect is achieved.
The bearing platform 3 bears and is provided with the camera device 1 and the alarm device 2, the alarm device 2 is used for prompting the evacuation of field prompt personnel, and the alarm device 2 comprises an alarm lamp 15 and a loudspeaker 16, is fixedly connected to the bearing platform 3 and is distributed on the left side and the right side of the camera device 1. The bearing platform 3 comprises an omnidirectional digital high-precision cradle head, the cradle head can rotate along with the requirement of monitoring angle adjustment, and the alarm device 2 and the camera device 1 can be matched to monitor and warn in a large range to play a better role in rapid auxiliary work. After the alarm device 2 receives the instruction, the alarm lamp 15 and the horn 16 can be turned on or off, when warning is needed, the alarm lamp 15 flickers to emit striking red light, and the horn plays a siren sound, so that the warning prompting effect of the related region is realized if necessary, and the disaster relief efficiency is improved.
Be provided with the quick-assembling device of quick installation on member or wall on the cushion cap 3, the quick-assembling device includes 3 bottom fixed connection mounting panels 8 of cushion cap, be equipped with fixed orifices 9 and first connecting hole 10 on the mounting panel 8, mounting panel 8 one side is connected with loose-leaf board 11 through the loose-leaf, loose-leaf board 11 have to the face outstanding, link up the kink about whole loose-leaf board 11 near the position of loose-leaf to conveniently connect the bigger size member. The loose-leaf plate is provided with a second connecting hole 13, and after the loose-leaf plate 11 rotates towards the back of the mounting plate 8, the positions of the second connecting hole 13 and the first connecting hole 10 are symmetrically arranged on two sides of the loose-leaf plate 11 in the rotating direction relative to the fixing hole 9; the U-shaped cut is arranged on the loose-leaf plate 11, the U-shaped elastic sheet 12 in the U-shaped cut slightly extends out of the back of the loose-leaf plate 11, and a rod piece fixing clamp 14 for installing and rotating on a rod piece is inserted between the U-shaped elastic sheet 12 and the back of the loose-leaf plate 11. If need install cushion cap 3 on the wall, relevant personnel pass through the mounting hole 9 on the mounting panel 8 and second connecting hole 13 mounting screw with mounting panel 8 preliminary fixed on the wall, and three position bolt fastening is enough to guarantee to fix firmly. The entire platform 3 is stably fixed to the wall surface of the disaster area. The rod retaining clip 14 need not be used at this time. The U-shaped elastic sheet 12 extends slightly to the back of the loose-leaf plate 11 and has elasticity so as to compensate for unevenness of the wall surface.
The top of the rod piece fixing clamp 14 is provided with an arched fixing elastic sheet 17, the back of the fixing elastic sheet 17 is provided with an insertion groove 18 for the U-shaped elastic sheet 12 to be inserted into, the lower end of the fixing elastic sheet 17 is fixedly connected with a vertical elastic sheet 19, and the lower end of the vertical elastic sheet 19 elastically abuts against the rod body of the rod piece. And friction plates 20 are fixed on the surface of the fixed elastic sheet 17 and the lower end of the vertical elastic sheet 19. Namely, the main body of the rod fixing clip 14 is formed by connecting a fixing elastic sheet 17 and a vertical elastic sheet 19 in a T shape. When the bearing platform is required to be installed on a rod piece, the U-shaped elastic sheet 12 is firstly inserted into the insertion groove 18, the loose-leaf plate 11 is rotated towards the installation plate 9, the bow of the fixed elastic sheet 17 is abutted to the rod body of the rod piece towards the rod piece, the lower end of the vertical elastic sheet is elastically abutted to the rod body of the rod piece, the contact area of the surface of the fixed elastic sheet 17 and the friction plate 20 arranged at the lower end of the vertical elastic sheet 19 can be increased, so that the friction is increased, the whole device is fixed on the rod. And then fixed by a bolt through the first coupling hole 10 and the second coupling hole 13. Therefore, equipment can be conveniently fixed on the wall, the stone wall, the electric pole, the wood pole and the like, and the device is suitable for being quickly installed and positioned in places inconvenient to install, such as disaster relief and the like. When the fixing device is fixed on a wall surface or a stone wall, the rod fixing clamp 14 can be used, and the unevenness of the wall surface or the stone wall surface can be compensated to a greater extent by utilizing the elastic pressing effect of the fixing elastic sheet 17 and the vertical elastic sheet 19.
When the disaster relief monitoring system works, a plurality of camera devices 1 distributed and controlled in a disaster key area monitor related areas in real time, then data are compressed and interacted and then are sent to a wireless receiving and sending terminal 4 through a wireless channel, the wireless receiving and sending terminal 4 transmits the data to a server 5 through the wireless channel, the server 5 transmits the data to a display module 7 and a disaster relief personnel mobile terminal 6, a commander gives instructions through the display module 7, the display module 7 sends instruction related data to the server 5, the server 5 sends the instruction related data to the disaster relief personnel mobile terminal 6 and the wireless receiving and sending terminal 4, the wireless receiving and sending terminal 4 sends the instructions to the camera devices 1 and an alarm device 2, the camera devices 1 can adjust monitoring angles or change the frequency of sending monitoring images to immediately interact required image data to instruction personnel and disaster relief personnel, and the alarm device 2 receives the instructions, the alarm lamp 15 and the horn 16 can be turned on or off, when warning is needed, the alarm lamp 15 flashes to emit striking red light, and the horn plays siren sound, so that the warning prompting effect of the related region is realized if necessary, and the disaster relief efficiency effect is improved. The invention plays roles of assisting disaster relief, video monitoring, secondary disaster early warning and providing basis for disaster relief decision command through the processes.
Compared with the common wireless network, the wireless network system does not need to add any network infrastructure, does not need to wire among the wireless transceiving modules, is more convenient to install and move, has better robustness, and is suitable for being quickly constructed and implemented on a disaster site, so that the work of quickly assisting earthquake relief work and the like is carried out. The invention has the functions of video monitoring, secondary disaster early warning, providing basis for disaster relief decision command, commanding disaster relief information integration and the like.

Claims (8)

1. A wireless ad hoc network construction method is used for constructing a disaster site monitoring and early warning system, and is characterized in that: the method comprises the following steps:
monitoring key parts of the disaster by using a camera device (1);
prompting the field to prompt people to evacuate by using an alarm device (2);
the camera device (1) and the alarm device (2) are carried and installed by a bearing platform (3);
the camera device (1) sends data to a server (5) through a wireless transceiver terminal (4);
the server (5) sends an instruction to the camera device (1) and the alarm device (2) through the wireless transceiving terminal (4);
the fast-assembling device is arranged on the bearing platform (3) and is quickly installed on a rod piece or a wall surface, the fast-assembling device comprises a fixed connection installation plate (8) arranged at the bottom of the bearing platform (3), a fixed hole (9) and a first connection hole (10) are formed in the installation plate (8), one side of the installation plate (8) is connected with a loose-leaf plate (11) through a loose leaf, a second connection hole (13) is formed in the overhanging end of the loose-leaf plate (11), the second connection hole (13) is opposite to the first connection hole (10) after the loose-leaf plate (11) rotates to the back of the installation plate (8), and the fixed holes (9) are symmetrically arranged on two sides of the rotation direction of the loose-leaf plate (11); the U-shaped cut is arranged on the loose-leaf plate (11), a U-shaped elastic sheet (12) in the U-shaped cut extends out of the back of the loose-leaf plate (11), and a rod piece fixing clamp (14) for connecting a rod piece is inserted between the U-shaped elastic sheet (12) and the back of the loose-leaf plate (11);
the top of the rod piece fixing clamp (14) is provided with an arched fixing elastic sheet (17), the back of the fixing elastic sheet (17) is provided with an insertion groove (18) for inserting the U-shaped elastic sheet (12), the lower end of the fixing elastic sheet (17) is fixedly connected with a vertical elastic sheet (19), and the lower end of the vertical elastic sheet (19) elastically abuts against the rod body of the rod piece.
2. The method of claim 1, wherein the method comprises: the wireless transceiving terminal (4) adopts an 802.11b/g communication protocol to carry out data transceiving; and the server (5) is used for communicating with the mobile terminal (6) of the disaster relief personnel.
3. The method of claim 1, wherein the method comprises: the camera device (1) is a double-CCD infrared zooming digital high-definition camera; the camera device (1) is internally provided with an image acquisition card, and the image acquisition card compresses acquired video data by adopting the MPEG4 standard.
4. The method of claim 1, wherein the method comprises: the output end of the server (5) is connected with the input end of the display module (7), and the server (5) sends data to the display module (7).
5. The method of claim 1, wherein the method comprises: the bearing platform (3) comprises an omnidirectional digital high-precision holder; the alarm device (2) comprises an alarm lamp (15) and a loudspeaker (16), wherein the alarm lamp (15) and the loudspeaker (16) are consistent with the orientation of a camera of the camera device (1) and are always exposed at an easily observable position along with the rotation of the holder when necessary.
6. The method of claim 1, wherein the method comprises: and friction plates (20) are fixed on the arched inner surface of the fixed elastic sheet (17) and the lower end of the vertical elastic sheet (19).
7. The method of claim 1, wherein the method comprises: the loose-leaf plate (11) is provided with a bending part (21) which is protruded towards the plate surface and penetrates through the whole loose-leaf plate (11) from top to bottom at the position close to the loose-leaf.
8. The method of claim 1, wherein the method comprises: alarm lamp (15) and loudspeaker (16) fixed connection of alarm device (2) on cushion cap (3), and distribute in camera device (1) the left and right sides.
CN201910352897.7A 2019-04-29 2019-04-29 Wireless ad hoc network construction method Active CN110191313B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910352897.7A CN110191313B (en) 2019-04-29 2019-04-29 Wireless ad hoc network construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910352897.7A CN110191313B (en) 2019-04-29 2019-04-29 Wireless ad hoc network construction method

Publications (2)

Publication Number Publication Date
CN110191313A CN110191313A (en) 2019-08-30
CN110191313B true CN110191313B (en) 2021-06-18

Family

ID=67715386

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910352897.7A Active CN110191313B (en) 2019-04-29 2019-04-29 Wireless ad hoc network construction method

Country Status (1)

Country Link
CN (1) CN110191313B (en)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060095539A1 (en) * 2004-10-29 2006-05-04 Martin Renkis Wireless video surveillance system and method for mesh networking
CN202856900U (en) * 2012-09-26 2013-04-03 北京世纪协达科技有限公司 Video monitoring system based on wireless self-organized network
CN203057306U (en) * 2012-12-21 2013-07-10 天津市万邦电子技术有限公司 Surveillance camera
CN106339039A (en) * 2016-09-30 2017-01-18 成都言行果科技有限公司 Falling-prevention and vibration-absorption tablet computer with multifunctional bracket
CN106302894A (en) * 2016-10-18 2017-01-04 成都尚智恒达科技有限公司 A kind of shatter-resistant smart mobile phone clamping device with multiple bay
CN106385567A (en) * 2016-10-31 2017-02-08 成都加华科技有限责任公司 Video monitoring implementation linkage system and video monitoring implementation linkage method based on wireless Internet of things
CN206973218U (en) * 2017-05-11 2018-02-06 中山市和正讯电子有限公司 A camera mount
CN208372212U (en) * 2017-08-18 2019-01-15 沧州市中心医院 The rotatable fixed infusion support of wall
CN108679429A (en) * 2018-07-04 2018-10-19 程梦轩 A kind of hand-held frame of the holder that stability is strong
CN208764583U (en) * 2018-08-24 2019-04-19 中山艾思特摄影科技有限公司 Multifunctional intelligent mobile terminal clamping device

Also Published As

Publication number Publication date
CN110191313A (en) 2019-08-30

Similar Documents

Publication Publication Date Title
US7539504B2 (en) Wireless telepresence collaboration system
US20070052804A1 (en) Mobile video surveillance system and method
KR101866977B1 (en) System and Method for Interactive Managing Remote Device based on LoRa Communication
US7221520B2 (en) Camera control using wireless technology
US9179099B2 (en) Method and system for implementing video conference and broadband mobile hotspot device
US11696365B2 (en) Self-contained, synchronized data communication system nodes as stand-alone pods or embedded in concrete walkways and in walls at public venues including sports and entertainment venues
TW200620902A (en) Viewing system
CN107872656A (en) Monitoring system and command system
CN102611562A (en) Method, device and system for establishing multi-cascade channel
JP2022048338A (en) Radio communication system and transmission terminal
CN116527838A (en) Emergency communication command equipment and system
CN110191313B (en) Wireless ad hoc network construction method
CN104106059A (en) Wireless camera data management
JP2010534971A (en) Full-duplex network-based apparatus and method
CN207560199U (en) Audio-video linkage control device and audio-video linked system
CN201813487U (en) Long-distance auxiliary maintenance system used for ocean platforms
CN111107674A (en) LoRa time-division networking communication method based on field animal monitoring equipment
CN109120852A (en) Internet protocol camera system, web camera and security system
US20120281091A1 (en) Connection node providing supplemental bandwidth for mobile units
CN212906006U (en) Unmanned aerial vehicle cluster observes and controls commander multi-functional car
GB2475279A (en) Transmitting a camera signal over a power line and a peer-to-peer internet connection
CN206775643U (en) A kind of microwave multi-hop force transfer large-capacity video data set
CN106572323A (en) Remote monitoring and nursing system
CN220156562U (en) A communication rapid response guarantee equipment and system
CN205453960U (en) Remote wireless video monitor system based on WIFI LAN is establish

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