CN110602648A - Emergency communication command equipment, system and method - Google Patents
Emergency communication command equipment, system and method Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18513—Transmission in a satellite or space-based system
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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- 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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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Abstract
The invention discloses emergency communication command equipment, a system and a method, wherein the system comprises a mobile emergency rescue command center, an aerial node, a Beidou satellite and at least one rescue squad distributed on an emergency site. The emergency communication command device, the emergency communication command system and the emergency communication command method apply the combined communication network formed by the Beidou satellite navigation system and the broadband wireless ad hoc network system to various emergency communications, can provide navigation, positioning and real-time disaster notification for the emergency communication, and overcome the defect of insufficient data transmission capability of the traditional emergency devices in the application fields of emergency rescue and relief work, emergency communication and the like.
Description
Technical Field
The invention relates to the technical field of communication, in particular to emergency communication command equipment, a system and a method.
Background
In the application fields of emergency rescue and relief work, emergency communication and the like, accurate geographical position information of a working site, images, videos and other information need to be returned in real time, and decision basis is provided for a command center. The traditional emergency communication system uses public networks such as GSM, 3G, 4G, etc. for data transmission. When an emergency event occurs, for example, natural disasters such as earthquake, torrential flood and the like occur, large-area power failure occurs, infrastructure is destroyed, and the 3G/4G public network is in a paralysis state; communication command can not be realized by adopting a communication network and a system in the prior art; causing damage to personal property and public facilities, even great personnel and economic losses. In addition, for remote areas with wide coverage and communication blind areas such as the sea, the field, the mountainous area and the forest, the communication network and the system in the prior art can not be guaranteed generally, so that the traditional emergency communication system has certain use limitation.
Disclosure of Invention
The invention aims to provide emergency communication command equipment, system and method.
An emergency communication command device, comprising: the network processing module is used for receiving information and data of an emergency site, analyzing and processing the information and the data and generating an emergency command instruction; the communication module is used for receiving external information and data and sending the external information and data to the network processing module and sending an emergency command instruction generated by the network processing module to the external module; and the monitoring module is used for inputting an external instruction of the equipment and displaying and controlling an internal instruction of the equipment.
The network processing module comprises: the system comprises a main control processor, a synchronous dynamic random access memory SDRAM and a NAND-flash memory; and the synchronous dynamic random access memory SDRAM and the NAND-flash memory are both connected with the main control processor circuit. The main control processor adopts an AR9344 processor chip; the main frequency of the main control processor is 560 MHz; the main control processor comprises a first Ethernet control unit and a second Ethernet control unit; the first Ethernet control unit and the second Ethernet control unit are both provided with SMGII interfaces; the first Ethernet control unit and the second Ethernet control unit are both 10M/100M Ethernet controllers; the main control processor is provided with a MiniPCIexpress interface; the main control processor is provided with a first UART interface and a second UART interface; the master control processor is provided with 10 GPIO interfaces; the main control processor is also provided with a first USB interface and a second USB interface; the first USB interface and the second USB interface are both 2.0Host interfaces. The communication module comprises a first communication module and a second communication module; the first communication module is a GPS positioning communication module; the second communication module is a wireless network communication module. The first communication module further comprises a positioning sub-module and a communication sub-module. The communication sub-module comprises a first baseband circuit unit (201), a receiving circuit unit (203), a transmitting circuit unit, a radio frequency transceiving circuit unit (202), a first external antenna (206) and a second external wire; one end of the radio frequency transceiving circuit unit (202) is connected with the first baseband circuit power supply; the radio frequency transceiving circuit unit (202) is respectively in circuit connection with the first baseband circuit unit (201), the receiving circuit unit (203) and the transmitting circuit unit; the first external antenna (206) is connected with the output end of the transmitting circuit unit; the second external antenna (205) is connected to an input of the receiving circuit. The communication sub-module is in circuit connection with the main control processor through the first UART interface. The first external antenna (206) and the second external antenna (205) are both passive antennas or active antennas with input voltage of 5 volts. The first external wire (206) and the second external antenna (205) default baud rate is set to 115200 bps. The first baseband circuit unit (201) is provided with a third UART interface and a fourth UART interface, and the receiving circuit unit (203) and the transmitting circuit unit; the receiving circuit unit (203) is connected with the first baseband circuit unit (201) through the third UART interface; the transmitting circuit unit is connected with the first baseband circuit unit (201) through the fourth UART interface. The positioning sub-module comprises: the system comprises a receiving and amplifying circuit unit (302), an RNSS positioning circuit unit (301) and a third external antenna (303), wherein the receiving and amplifying circuit unit (302) is in circuit connection with the RNSS positioning circuit unit (301); the third external antenna (303) is connected with the input end of the receiving amplification circuit unit (302). And the positioning sub-module is in circuit connection with the main control processor through the second UART interface. The third external antenna (303) can be a passive antenna or an active antenna; the receiving amplification circuit unit (302) comprises a passive antenna connection interface, an active antenna connection interface and a switching circuit; the passive antenna connection interface and the active antenna connection interface are connected with the switching circuit. The default baud rate of the third external antenna (303) is 9600 bps. The second communication module comprises a second baseband circuit unit, a radio frequency circuit unit and an external control and storage unit; the radio frequency circuit unit and the external control and storage unit are respectively in circuit connection with the second baseband circuit unit. The radio frequency circuit comprises a radio frequency signal front-end circuit, a radio frequency signal receiving and transmitting circuit, a radio frequency signal control circuit and a radio frequency signal processing circuit which are sequentially connected through circuits. The radio frequency signal transceiving circuit comprises a radio frequency receiving circuit and a radio frequency transmitting circuit; the radio frequency signal control circuit comprises a BB filtering input/output multiplexer; the radio frequency receiving circuit and the radio frequency transmitting circuit are respectively connected with the BB filtering input/output multiplexer circuit. The radio frequency signal processing circuit comprises a digital-to-analog converter and an analog-to-digital converter, and the digital-to-analog converter and the analog-to-digital converter are both connected with the second baseband circuit. The external control and storage unit comprises a medium access controller, a configuration controller and a memory; the medium access controller, the configuration controller and the memory are respectively connected with the second baseband circuit. The second communication module further comprises an external host and a peripheral interface; the peripheral interface comprises a PCI interface, a serial port and a GPIO interface. The second communication module further comprises a power amplifying circuit unit, and the power amplifying circuit unit is in circuit connection with the radio frequency circuit unit. The emergency communication command equipment further comprises a camera, and the camera is in circuit connection with the main control processor. The emergency communication command equipment provided by the invention further comprises a power management module. The emergency communication command equipment provided by the invention further comprises an alarm device, and the alarm device is connected with the main control processor circuit.
An emergency communication command system comprises a mobile emergency rescue command center, an aerial node, a Beidou satellite and at least one rescue squad distributed on an emergency site.
The rescue squad adopts the emergency communication command equipment; and the rescue teams on the emergency site form a wireless self-organizing network.
An emergency communication commanding method comprises the following steps: s1, forming a wireless self-organizing network by rescue teams; and S2 is used for positioning the rescue squad and realizing the short message communication.
The step of S1, which is used for rescue teams to form a wireless ad hoc network, includes: s11, each rescue team is used as a communication node of a wireless self-organizing network to periodically send an OGM (origin message) message outwards to inform the existence of the rescue team; s12, when each rescue squad is used as a communication node of a wireless self-organizing network to receive OGM messages from other nodes, the OGM messages are forwarded according to a strategy, so that the OGM messages can be spread to the whole network; s13 each rescue squad as a communication node of a wireless self-organizing network maintains a local neighbor list which can reach the node, and each path is subjected to appropriate routing measurement so as to select the best path for routing. The step of S2 for positioning by rescue teams and realizing short message communication includes: s21, each rescue squad is used as a communication node of a wireless self-organizing network to receive Beidou satellite information in real time after the communication node is started, and the Beidou satellite information is stored in a storage unit; s22, each rescue squad is used as a communication node of a wireless self-organizing network to send the position information of the rescue squad to a mobile emergency rescue command center through a Beidou satellite system; s23, the mobile emergency rescue command center analyzes and processes the received position information and generates command and dispatching instructions; and S24, the mobile emergency rescue command center sends the command scheduling command to each rescue squad through a Beidou satellite system, so that the command and scheduling of the rescue squads by the command center are realized. The S22 step of sending the position information of each rescue squad serving as a communication node of a wireless self-organizing network to a mobile emergency rescue command center through a Beidou satellite system comprises the following steps: s221, the rescue squad is used as a short message sender to encrypt a communication application signal containing a receiver ID number and communication contents and then forward and inbound through a satellite; s222, after receiving the communication application signal, the ground central station is subjected to decryption and re-encryption, then is added into the continuously broadcast outbound broadcast message, and is broadcast to the mobile emergency rescue command center through a satellite; and S223, the mobile emergency rescue command center serves as a receiver to receive the outbound signal, demodulate and decrypt the outbound telegraph text, and finish one-time communication. The emergency communication command method further comprises the step of sending an alarm signal to other rescue teams through manual operation. The emergency communication command method further comprises a video acquisition step.
The emergency communication command device, the emergency communication command system and the emergency communication command method provided by the invention are designed by combining the characteristics of the Beidou communication technology and the broadband wireless communication technology aiming at the use environment of the emergency communication command field and the special requirements of monitoring, communication and management on rescue sites in the prior art, the Beidou satellite navigation positioning system is taken as a basic supporting platform of the emergency communication command system and is combined with the wireless ad hoc network system, the combined communication network formed by the Beidou satellite navigation system and the broadband wireless ad hoc network system is applied to various emergency communications, the navigation, positioning and real-time notification of disaster situations can be provided for the emergency communications, and the defect that the traditional emergency device has insufficient data transmission capability in the application fields of rescue and disaster relief, emergency communication and the like is overcome.
Drawings
Fig. 1 is a schematic structural diagram of a network processing module of an emergency communication command device according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a communication submodule of the emergency communication command device according to the first embodiment of the present invention;
FIG. 3 is a schematic circuit structure connection diagram of communication sub-modules of the emergency communication command device according to the first embodiment of the present invention
Fig. 4 is a schematic structural diagram of a positioning sub-module of the emergency communication command device according to the first embodiment of the present invention;
fig. 5 is a schematic circuit structure connection diagram of a positioning sub-module of the emergency communication command device according to the first embodiment of the present invention;
fig. 6 is a schematic circuit structure connection diagram of a second communication module of the emergency communication command device according to the first embodiment of the present invention;
fig. 7 is a schematic diagram of an emergency communication command system according to a second embodiment of the present invention;
fig. 8 is a flowchart illustrating an emergency communication command method according to a third embodiment of the present invention;
fig. 9 is a schematic diagram illustrating a step of forming a wireless ad hoc network by rescue teams in the emergency communication command method according to a third embodiment of the present invention;
fig. 10 is a schematic diagram illustrating a step for positioning and implementing short message communication for a rescue squad in the emergency communication command method according to the third embodiment of the present invention;
fig. 11 is a step of each rescue squad serving as a communication node of a wireless ad hoc network in the emergency communication command method according to the third embodiment of the present invention, sending its own location information to a mobile emergency rescue command center through a beidou satellite system;
wherein:
201-a first baseband circuitry unit; 202-radio frequency transceiver circuit unit; 203-a receiving circuit unit; 204-a transmission circuit unit; 205-a second external antenna; 206-a first external antenna; 301-RNSS positioning circuit unit; 302-a receive amplifier circuit unit; 303-third external antenna.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment provides an emergency communication command device, including:
the network processing module is used for receiving information and data of an emergency site, analyzing and processing the information and the data and generating an emergency command instruction;
the communication module is used for receiving external information and data and sending the external information and data to the network processing module and sending an emergency command instruction generated by the network processing module to the external module;
and the monitoring module is used for inputting an external instruction of the equipment and displaying and controlling an internal instruction of the equipment. Those skilled in the art can understand that the monitoring module may selectively receive and display information of one or more other nodes, and may also display local information, and meanwhile, the monitoring platform may also serve as a monitoring center of the entire device, and send an instruction to a node in the device to monitor and schedule all nodes in the device.
As shown in fig. 1, the network processing module includes: the system comprises a main control processor, a synchronous dynamic random access memory SDRAM and a NAND-flash memory; and the synchronous dynamic random access memory SDRAM and the NAND-flash memory are both connected with the main control processor circuit.
The main control processor adopts an AR9344 processor chip;
the main frequency of the main control processor is 560 MHz;
the main control processor comprises a first Ethernet control unit and a second Ethernet control unit;
the first Ethernet control unit and the second Ethernet control unit are both provided with SMGII interfaces;
the first Ethernet control unit and the second Ethernet control unit are both 10M/100M Ethernet controllers.
The main control processor is provided with a MiniPCIexpress interface;
the main control processor is provided with a first UART interface and a second UART interface;
the master control processor is provided with 10 GPIO interfaces;
the main control processor is also provided with a first USB interface and a second USB interface;
the first USB interface and the second USB interface are both 2.0Host interfaces.
Those skilled in the art can understand that the first UART interface or the second UART interface may be used to connect a positioning communication module in the communication module, and is responsible for controlling and receiving positioning information, controlling data transmission between the network processing module and the positioning communication module, and sending the position and state information of the node to the monitoring module or other external nodes in a short message manner through the positioning communication module; the MiniPCIEExpress interface is used for being connected with the wireless communication module and the power amplifier to complete communication between the wireless radio frequency and the main control processor; the master control processor is connected with the monitoring module through a switch; the master control processor is connected with the camera through the switch. The GPIO interface, the first USB interface, and the second USB interface are used to provide an interface connected to an expansion device for the emergency communication command device provided in this embodiment, so as to implement an expansion function.
The communication module comprises a first communication module and a second communication module; the first communication module is a GPS positioning communication module; the second communication module is a wireless network communication module.
The first communication module further comprises a positioning sub-module and a communication sub-module.
As shown in fig. 2, the communication sub-module includes a first baseband circuit unit 201, a receiving circuit unit 203, a transmitting circuit unit and rf transceiver circuit unit 202, a first external antenna 206 and a second external wire; one end of the radio frequency transceiver circuit unit 202 is connected to the first baseband circuit power supply; the radio frequency transceiver circuit unit 202 is respectively in circuit connection with the first baseband circuit unit 201, the receiving circuit unit 203 and the transmitting circuit unit; the first external antenna 206 is connected with the output end of the transmitting circuit unit; the second external antenna 205 is connected to an input of the receiving circuit.
FIG. 3 is a schematic diagram of the circuit structure connection of the communication sub-module; the communication sub-module is in circuit connection with the main control processor through the first UART interface.
The first external antenna 206 may be a passive antenna with an input voltage of 5 volts, or an active antenna;
the second external antenna 205 may be a passive antenna with an input voltage of 5 volts, or an active antenna;
as can be appreciated by those skilled in the art, the first external antenna (206) and the second external antenna can be respectively set as a passive antenna or an active antenna according to different emergency scenes so as to adapt to different conditions and communication requirements of the emergency scenes.
The default baud rate of the first external antenna 206 is set to 115200 bps;
the default baud rate of the second external antenna 205 is set to 115200 bps;
the first baseband circuit unit 201 is provided with a third UART interface and a fourth UART interface, and the receiving circuit unit 203 and the transmitting circuit unit; the receiving circuit unit 203 is connected to the first baseband circuit unit 201 through the third UART interface; the transmitting circuit unit is connected to the first baseband circuit unit 201 through the fourth UART interface.
As shown in fig. 4, the positioning sub-module includes: a receiving and amplifying circuit unit 302, an RNSS (radio Navigation Satellite system) positioning circuit unit 301, and a third external antenna 303, where the receiving and amplifying circuit unit 302 is in circuit connection with the RNSS positioning circuit unit 301; the third external antenna 303 is connected to an input end of the receiving and amplifying circuit unit 302.
FIG. 5 is a schematic diagram of the circuit structure of the positioning sub-module; and the positioning sub-module is in circuit connection with the main control processor through the second UART interface.
The third external antenna 303 may be a passive antenna or an active antenna; the receiving amplifying circuit unit 302 comprises a passive antenna connection interface, an active antenna connection interface and a switching circuit; the passive antenna connection interface and the active antenna connection interface are connected with the switching circuit. Those skilled in the art can understand that the third external antenna 303 may be set as a passive antenna according to the condition and requirement of the emergency scene, and at this time, the switching circuit is controlled to switch to the working mode in which the passive antenna connection interface is conducted; the third external antenna 303 may also be set as an active antenna according to the condition and need of an emergency scene, and at this time, the switching circuit is controlled to switch to the working mode in which the active antenna connection interface is turned on. Therefore, various emergency conditions and requirements can be met, and the applicability of the emergency communication command equipment provided by the embodiment is improved.
The default baud rate of the third external antenna 303 is 9600 bps.
As shown in fig. 6, the second communication module includes a second baseband circuit unit, a radio frequency circuit unit, and an external control and storage unit; the radio frequency circuit unit and the external control and storage unit are respectively in circuit connection with the second baseband circuit unit.
The radio frequency circuit comprises a radio frequency signal front-end circuit, a radio frequency signal receiving and transmitting circuit, a radio frequency signal control circuit and a radio frequency signal processing circuit which are sequentially connected through circuits.
As shown in fig. 6, the radio frequency signal transceiver circuit includes a radio frequency receiving circuit and a radio frequency transmitting circuit; the radio frequency signal control circuit comprises a BB filtering input/output multiplexer; the radio frequency receiving circuit and the radio frequency transmitting circuit are respectively connected with the BB filtering input/output multiplexer circuit.
As shown in fig. 6, the rf signal processing circuit includes a digital-to-analog converter and an analog-to-digital converter, both of which are connected to the second baseband circuit.
As shown in fig. 6, the external control and storage unit includes a media access controller, a configuration controller, and a memory; the medium access controller, the configuration controller and the memory are respectively connected with the second baseband circuit.
As shown in fig. 6, the second communication module further includes an external host and a peripheral interface;
the peripheral interface comprises a PCI interface, a serial port and a GPIO interface.
The second communication module further comprises a power amplifying circuit unit, and the power amplifying circuit unit is in circuit connection with the radio frequency circuit unit. As will be understood by those skilled in the art, the power amplification circuit unit is used to perform amplification of a wireless signal, thereby extending a communication distance and allowing a device to operate in a larger area.
The emergency communication command device provided by the embodiment further comprises a camera, and the camera is in circuit connection with the main control processor. As can be appreciated by those skilled in the art, the camera is used for collecting video data on site, and when necessary, the video data can be sent to a monitoring center or other nodes through a wireless network to complete video communication in the equipment.
The emergency communication commanding device provided by the embodiment further comprises a power management module. Those skilled in the art will appreciate that the power management module is used to power all modules within a node.
The emergency communication command device provided by the embodiment further comprises an alarm device, and the alarm device is connected with the main control processor circuit. As can be understood by those skilled in the art, the alarm function is the core function of each node in the Beidou emergency command system. The node has an alarm function, and the alarm is realized through manual operation. When the node meets emergent emergency and needs external support, alarm information is sent to other nodes through manual operation to inform the outside that the node meets dangerous or emergency and needs timely treatment or assistance.
Example two
As shown in fig. 7, the embodiment provides an emergency communication command system, which includes a mobile emergency rescue command center, an air node, a beidou satellite, and at least one rescue squad distributed in an emergency field.
The rescue squad adopts the emergency communication command equipment of the embodiment I.
And the rescue teams on the emergency site form a wireless self-organizing network.
EXAMPLE III
As shown in fig. 8, the embodiment provides an emergency communication commanding method, which includes the following steps:
s1, forming a wireless self-organizing network by rescue teams;
and S2 is used for positioning the rescue squad and realizing the short message communication.
As shown in fig. 9, the step S1 of forming a wireless ad hoc network by rescue teams includes:
s11, each rescue team is used as a communication node of a wireless self-organizing network to periodically send an OGM (organic message) message outwards to inform the existence of the rescue team;
s12, when each rescue squad is used as a communication node of a wireless self-organizing network to receive OGM messages from other nodes, the OGM messages are forwarded according to a strategy, so that the OGM messages can be spread to the whole network; those skilled in the art can understand that all nodes which can be reached in the whole network can be known according to the source node of the detection packet, and the relevant information of the nodes is maintained, so that the paths of all the reachable nodes are obtained;
s13 each rescue squad as a communication node of a wireless self-organizing network maintains a local neighbor list which can reach the node, and each path is subjected to appropriate routing measurement so as to select the best path for routing. Those skilled in the art can understand that in a wireless multi-hop network, for a given destination node, there may be multiple reachable paths, and through this step, the best route is selected, so as to achieve better communication effect.
As shown in fig. 10, the step S2 of locating and implementing short message communication for the rescue squad includes:
s21, each rescue squad is used as a communication node of a wireless self-organizing network to receive Beidou satellite information in real time after the communication node is started, and the Beidou satellite information is stored in a storage unit. It will be understood by those skilled in the art that the location information includes longitude information, latitude information, time information, altitude information, etc., which can be extracted from the storage unit at any time when needed, so that each rescue squad knows its location and can inform each rescue squad of its location.
S22, each rescue squad is used as a communication node of a wireless self-organizing network to send the position information of the rescue squad to a mobile emergency rescue command center through a Beidou satellite system;
s23, the mobile emergency rescue command center analyzes and processes the received position information and generates command and dispatching instructions;
and S24, the mobile emergency rescue command center sends the command scheduling command to each rescue squad through a Beidou satellite system, so that the command and scheduling of the rescue squads by the command center are realized.
As shown in fig. 11, the step of S22, in which each rescue squad serves as a communication node of a wireless ad hoc network to send its own location information to the mobile emergency rescue command center through the beidou satellite system, includes:
s221, the rescue squad is used as a short message sender to encrypt a communication application signal containing a receiver ID number and communication contents and then forward and inbound through a satellite;
s222, after receiving the communication application signal, the ground central station is subjected to decryption and re-encryption, then is added into the continuously broadcast outbound broadcast message, and is broadcast to the mobile emergency rescue command center through a satellite;
and S223, the mobile emergency rescue command center serves as a receiver to receive the outbound signal, demodulate and decrypt the outbound telegraph text, and finish one-time communication.
The emergency communication command method provided by the embodiment further comprises the step of sending an alarm signal to other rescue teams through manual operation. As can be understood by those skilled in the art, when a node meets an emergency and needs external support, alarm information is sent to other nodes through manual operation to inform the outside that the node meets a dangerous or emergency situation and needs to be timely handled or assisted.
The emergency communication commanding method provided by the embodiment further comprises a video acquisition step. As can be understood by those skilled in the art, all nodes distributed on an emergency site are connected with cameras through a switch, and the nodes can acquire video signals on the site in real time and transmit the video signals through a wireless network.
Those skilled in the art can understand that the emergency communication command method provided by the embodiment is based on a beidou satellite communication positioning system and adopts an OpenWrt operating system. OpenWrt is a highly modular and highly automated embedded Linux system with powerful network components and extensibility. The use of the OpenWrt system allows for free, full customization of embedded devices, rather than a single, static firmware. The architecture of the driver uses a mac80211+ ath9k mode, the protocol part is completely integrated in the mac80211 in the mode, the flexibility is high, and the own data link layer protocol can be selected and realized in the development process so as to better finish the project target.
The Beidou-based emergency communication command system can provide a unified and friendly-interface configuration network management system. The network management interface mainly comprises: the system comprises a login interface, a basic setting interface (IP and gateway address), a wireless setting interface (wireless parameter modification: center frequency, channel bandwidth, network identification and transmitting power), a link monitoring interface (connected wireless equipment state), information acquisition, processing and display of a multipoint system, Beidou information, user management, LOG and LOG management.
According to the emergency communication command method provided by the embodiment, information between each emergency rescue squad and the mobile emergency rescue command center in an emergency site is uploaded and issued by means of wireless ad hoc network equipment, and when the emergency site is not far away from the mobile emergency rescue command center, the emergency rescue squad can transmit data information back to the mobile emergency rescue command center; when the emergency site is too far away from the mobile emergency rescue command center and serious ground shielding communication is blocked, data information can be transmitted back to the mobile emergency rescue command center through the aerial node; under the condition that the air node can not transmit data information back to the command center, important information such as position, alarm and the like can be transmitted back to the mobile emergency rescue command center through Beidou short message communication.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (33)
1. An emergency communication command device, comprising:
the network processing module is used for receiving information and data of an emergency site, analyzing and processing the information and the data and generating an emergency command instruction;
the communication module is used for receiving external information and data and sending the external information and data to the network processing module and sending an emergency command instruction generated by the network processing module to the external module;
and the monitoring module is used for inputting an external instruction of the equipment and displaying and controlling an internal instruction of the equipment.
2. The emergency communication command device of claim 1, wherein the network processing module comprises: the system comprises a main control processor, a synchronous dynamic random access memory SDRAM and a NAND-flash memory; and the synchronous dynamic random access memory SDRAM and the NAND-flash memory are both connected with the main control processor circuit.
3. The emergency communication command device of claim 2, wherein the master processor employs an AR9344 processor chip; the main frequency of the main control processor is 560 MHz; the main control processor comprises a first Ethernet control unit and a second Ethernet control unit; the first Ethernet control unit and the second Ethernet control unit are both provided with SMGII interfaces; the first Ethernet control unit and the second Ethernet control unit are both 10M/100M Ethernet controllers; the main control processor is provided with a MiniPCIexpress interface; the main control processor is provided with a first UART interface and a second UART interface; the master control processor is provided with 10 GPIO interfaces; the main control processor is also provided with a first USB interface and a second USB interface; the first USB interface and the second USB interface are both 2.0Host interfaces.
4. The emergency communication command device of claim 3, wherein the communication module comprises a first communication module and a second communication module; the first communication module is a GPS positioning communication module; the second communication module is a wireless network communication module.
5. The emergency communication command device of claim 4, wherein the first communication module further comprises a positioning sub-module and a communication sub-module.
6. The emergency communication command device according to claim 5, wherein the communication sub-module comprises a first baseband circuit unit (201), a receiving circuit unit (203), a transmitting circuit unit and radio frequency transceiving circuit unit (202), a first external antenna (206), and a second external wire; one end of the radio frequency transceiving circuit unit (202) is connected with the first baseband circuit power supply; the radio frequency transceiving circuit unit (202) is respectively in circuit connection with the first baseband circuit unit (201), the receiving circuit unit (203) and the transmitting circuit unit; the first external antenna (206) is connected with the output end of the transmitting circuit unit; the second external antenna (205) is connected to an input of the receiving circuit.
7. The emergency communication command device of claim 6, wherein the communication sub-module is in circuit connection with the host processor through the first UART interface.
8. The emergency communication command device according to claim 7, wherein the first external antenna (206) and the second external antenna (205) are both passive antennas or active antennas with an input voltage of 5 volts.
9. The emergency communication command device of claim 8, wherein the first external wire (206) and the second external antenna (205) default baud rate is set to 115200 bps.
10. The emergency communication command device according to claim 9, wherein the first baseband circuit unit (201) is provided with a third UART interface and a fourth UART interface, the receiving circuit unit (203) and the transmitting circuit unit; the receiving circuit unit (203) is connected with the first baseband circuit unit (201) through the third UART interface; the transmitting circuit unit is connected with the first baseband circuit unit (201) through the fourth UART interface.
11. The emergency communication command device of claim 10, wherein the positioning sub-module comprises: the system comprises a receiving and amplifying circuit unit (302), an RNSS positioning circuit unit (301) and a third external antenna (303), wherein the receiving and amplifying circuit unit (302) is in circuit connection with the RNSS positioning circuit unit (301); the third external antenna (303) is connected with the input end of the receiving amplification circuit unit (302).
12. The emergency communication command device of claim 11, wherein the positioning sub-module is in circuit with the host processor via the second UART interface.
13. The emergency communication command device according to claim 12, wherein the third external antenna (303) is either a passive antenna or an active antenna; the receiving amplification circuit unit (302) comprises a passive antenna connection interface, an active antenna connection interface and a switching circuit; the passive antenna connection interface and the active antenna connection interface are connected with the switching circuit.
14. The emergency communication command device of claim 13, wherein the third external antenna (303) has a default baud rate of 9600 bps.
15. The emergency communication commanding device according to claim 14, wherein the second communication module includes a second baseband circuit unit, a radio frequency circuit unit, an external control and storage unit; the radio frequency circuit unit and the external control and storage unit are respectively in circuit connection with the second baseband circuit unit.
16. The emergency communication command device according to claim 15, wherein the rf circuit comprises an rf signal front-end circuit, an rf signal transceiver circuit, an rf signal control circuit, and an rf signal processing circuit, which are sequentially connected by a circuit.
17. The emergency communication command device of claim 16, wherein the radio frequency signal transceiving circuit comprises a radio frequency receiving circuit, a radio frequency transmitting circuit; the radio frequency signal control circuit comprises a BB filtering input/output multiplexer; the radio frequency receiving circuit and the radio frequency transmitting circuit are respectively connected with the BB filtering input/output multiplexer circuit.
18. The emergency communication command device of claim 17 wherein the radio frequency signal processing circuitry comprises a digital-to-analog converter and an analog-to-digital converter, both of which are coupled to the second baseband circuitry.
19. The emergency communication command device of claim 18, wherein the external control and storage unit comprises a media access controller, a configuration controller and a memory; the medium access controller, the configuration controller and the memory are respectively connected with the second baseband circuit.
20. The emergency communication command device of claim 19, wherein the second communication module further comprises an external host and a peripheral interface; the peripheral interface comprises a PCI interface, a serial port and a GPIO interface.
21. The emergency communication command device of claim 20, wherein the second communication module further comprises a power amplification circuit unit, the power amplification circuit unit being in circuit connection with the radio frequency circuit unit.
22. The emergency communication command device of claim 21, further comprising a camera in electrical communication with the master processor.
23. The emergency communication command device of claim 21, further comprising a power management module.
24. The emergency communication command device of claim 21, further comprising an alarm device in circuit with the master processor.
25. An emergency communication command system, comprising: the system comprises a mobile emergency rescue command center, an aerial node, a Beidou satellite and at least one rescue squad distributed on an emergency site.
26. The emergency communication command system of claim 25, wherein: the rescue squad adopts the emergency communication command equipment of the embodiment I.
27. The emergency communication command system of claim 26, wherein: and the rescue teams on the emergency site form a wireless self-organizing network.
28. An emergency communication commanding method, characterized by comprising the steps of:
s1, forming a wireless self-organizing network by rescue teams;
and S2 is used for positioning the rescue squad and realizing the short message communication.
29. The emergency communication commanding method according to claim 28, wherein the step of S1 for the rescue teams to form the wireless ad hoc network comprises:
s11, each rescue team is used as a communication node of a wireless self-organizing network to periodically send an OGM (origin message) message outwards to inform the existence of the rescue team;
s12, when each rescue squad is used as a communication node of a wireless self-organizing network to receive OGM messages from other nodes, the OGM messages are forwarded according to a strategy, so that the OGM messages can be spread to the whole network;
s13 each rescue squad as a communication node of a wireless self-organizing network maintains a local neighbor list which can reach the node, and each path is subjected to appropriate routing measurement so as to select the best path for routing.
30. The emergency communication commanding method according to claim 29, wherein the step of S2 for positioning by the rescue squad and implementing short message communication comprises:
s21, each rescue squad is used as a communication node of a wireless self-organizing network to receive Beidou satellite information in real time after the communication node is started, and the Beidou satellite information is stored in a storage unit;
s22, each rescue squad is used as a communication node of a wireless self-organizing network to send the position information of the rescue squad to a mobile emergency rescue command center through a Beidou satellite system;
s23, the mobile emergency rescue command center analyzes and processes the received position information and generates command and dispatching instructions;
and S24, the mobile emergency rescue command center sends the command scheduling command to each rescue squad through a Beidou satellite system, so that the command and scheduling of the rescue squads by the command center are realized.
31. An emergency communication commanding method as set forth in claim 30 wherein the step of S22 each rescue squad as a communication node of a wireless ad hoc network sending its own position information to the mobile emergency rescue command center through the beidou satellite system comprises:
s221, the rescue squad is used as a short message sender to encrypt a communication application signal containing a receiver ID number and communication contents and then forward and inbound through a satellite;
s222, after receiving the communication application signal, the ground central station is subjected to decryption and re-encryption, then is added into the continuously broadcast outbound broadcast message, and is broadcast to the mobile emergency rescue command center through a satellite;
and S223, the mobile emergency rescue command center serves as a receiver to receive the outbound signal, demodulate and decrypt the outbound telegraph text, and finish one-time communication.
32. An emergency communication commanding method according to claim 31 further including the step of sending an alarm signal to other rescue teams by manual operation.
33. The emergency communication command method of claim 31, further comprising a video capture step.
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