Multi-network integration emergency communication command and dispatch system

Abstract

The invention discloses a multi-network integration emergency communication command and dispatch system. The system comprises terminal acquisition equipment, multi-network communication equipment, an on-site command center, a remote communication link and a remote dispatch center which are connected in sequence, the terminal acquisition device acquires field video data, voice data, sensor data and positioning data information; the multi-network communication equipment comprises LTE private network communication equipment, LoRA private network equipment and wireless ad hoc network communication equipment; the LTE private network communication equipment provides broadband wireless communication service and supports video, voice and data transmission; the LoRA private network communication device is connected with the low-power-consumption device, carries out data collection, and sends collected data through LoRA communication. The wireless ad hoc network communication equipment establishes a temporary communication network for the terminal acquisition equipment without fixed network facilities; and the on-site command center is used for carrying out multi-link aggregation, carrying out on-site scheduling according to the acquired data information, and sending the acquired data information to the remote scheduling center through a remote communication link.

Description

Technical Field

[0001] The present invention relates to the technical field of emergency communications, and more specifically to a multi-network integrated emergency communications command and dispatch system. Background Art

[0002] Emergency communication refers to the comprehensive use of various communication resources to ensure the communication means and methods required for rescue, emergency assistance and necessary communications when natural or man-made sudden emergencies occur, including when communication needs increase suddenly. It is a temporary special communication mechanism provided to respond to natural or man-made emergencies.

[0003] By utilizing modern converged communication technology, building a converged communication-related equipment service network group, and designing a converged communication intelligent dispatching and command system that integrates video surveillance, radio communication, voice calls and other functions, the efficiency of emergency dispatching and command can be effectively improved, and a reliable communication platform technology support can be provided for the coordinated development of various complex rescue operations.

[0004] However, emergency detection communications currently use communication methods of different systems and information messages of different formats, which are not easy to interconnect, interoperate, and share resources. In addition, in many sudden emergency situations, the communication infrastructure is damaged or missing, and the command center cannot obtain the on-site situation in time, nor can it quickly contact the emergency teams and personnel, understand the on-site situation in time, and issue emergency instructions in a unified and rapid manner. In addition, for accident rescue emergency communication equipment, the industry already has products that support MESH wireless ad hoc network communication and satellite positioning, but there are generally problems with poor outdoor positioning accuracy and the inability to locate indoors due to the lack of satellite signals.

[0005] Therefore, how to quickly carry out on-site multimedia emergency communication command and dispatch support when roads and ground communication infrastructure are damaged or missing in sudden emergencies, and at the same time transmit part of the on-site real-time multimedia data to the rear command center, is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0006] In view of this, the present invention provides a multi-network integrated emergency communication command and dispatch system to solve some of the technical problems mentioned in the background technology.

[0007] In order to achieve the above object, the present invention adopts the following technical solution:

[0008] A multi-network integrated emergency communication command and dispatch system, comprising a terminal acquisition device, a multi-network communication device, an on-site command center, a remote communication link and a remote dispatch center connected in sequence;

[0009] Terminal acquisition equipment, used to collect video data, voice data, sensor data and positioning data information on site;

[0010] Multi-network communication equipment includes LTE private network communication equipment, LoRA private network equipment and wireless ad hoc network communication equipment;

[0011] LTE private network communication equipment, used to provide broadband wireless communication services and support the transmission of video, voice and data;

[0012] LoRA private network communication equipment, used to connect low-power devices and collect data, and send collected data through LoRA communication;

[0013] Wireless ad hoc network communication equipment, used to establish a temporary communication network for terminal acquisition equipment in the absence of fixed network facilities;

[0014] The on-site command center is used to perform multi-link aggregation of LTE private network communication equipment, LoRA private network equipment and wireless ad hoc network communication equipment, perform on-site scheduling based on the collected video data, voice data, sensor data and positioning data information, and send the collected video data, voice data, sensor data and positioning data information to the remote scheduling center through the remote communication link.

[0015] Preferably, the terminal collection device includes a single mobile device, a drone, a self-organizing network terminal, an LTE private network terminal and a LoRA private network terminal.

[0016] Preferably, a single mobile device is used to perform indoor and outdoor fusion positioning of emergency rescue personnel, and transmit the positioning data and other audio and video data back to the on-site command center through wireless ad hoc network communication equipment.

[0017] Preferably, the single mobile device includes an RTK positioning module, a UWB positioning module, a fusion positioning processor and an ad hoc network communication module;

[0018] RTK positioning module, used in outdoor scenarios to receive positioning data from Beidou satellites and differential correction data from RTK base stations, and perform self-position correction to achieve centimeter-level accuracy;

[0019] UWB positioning module, used to receive positioning measurement signals from multiple UWB beacons in indoor scenarios and determine the current position coordinates through the TDOA algorithm;

[0020] The fusion positioning processor is used for overlapping areas of indoor and outdoor positioning. The RTK positioning module and the UWB positioning module are in working state at the same time and report positioning data at the same time. The processor predicts the position coordinates according to the historical trajectory, and compares the position data of the two positioning modules and uses the best one until the data deviation of the former positioning module exceeds the preset threshold and completely switches to the latter positioning mode;

[0021] The ad hoc network communication module is used to send the positioning data obtained by the RTK positioning module, UWB positioning module or fusion positioning processor to the on-site command center through the wireless ad hoc network communication device.

[0022] Preferably, the on-site command center includes a multi-link fusion terminal, a dispatch control module, a remote communication switching module and a multimedia display module;

[0023] Multi-link fusion terminal, used to perform multi-link aggregation on LTE private network communication equipment, LoRA private network equipment and wireless ad hoc network communication equipment, and send the collected data to the dispatch control module, remote communication switching module and multimedia display module;

[0024] A dispatching control module is used to dispatch and control the terminal acquisition equipment according to the collected data;

[0025] A remote communication switching module, used to select a link according to the signal strength of each remote communication link and send the collected data to a remote dispatch center;

[0026] Multimedia display module, used to display the collected data on site.

[0027] Preferably, the long-distance communication links include communication satellites, operator networks and ad hoc network communication links.

[0028] Preferably, the LTE private network communication equipment includes a wireless access network and a core network;

[0029] The private network terminal is connected to the wireless access network and the core network in sequence, and the data collected by the private network terminal is sent to the on-site command center through the wireless access network and the core network.

[0030] Preferably, the LoRA private network device includes an indoor LoRA gateway and an outdoor LoRA gateway;

[0031] LoRA private network terminals include indoor LoRA private network terminals and outdoor LoRA private network terminals;

[0032] The indoor LoRA private network terminal transmits the collected data to the on-site command center through the indoor LoRA gateway;

[0033] The outdoor LoRA private network terminal transmits the collected data to the on-site command center through the outdoor LoRA gateway.

[0034] Preferably, the wireless ad hoc network communication equipment includes an Internet of Things gateway, an ad hoc network and positioning base station, an ad hoc network transmission base station and an ad hoc network link.

[0035] The ad hoc network terminal sends the collected data and positioning data to the on-site command center through the IoT gateway, the ad hoc network and the positioning base station via the ad hoc network link and the ad hoc network transmission station.

[0036] Preferably, the multi-network communication device further includes a UWB positioning beacon and an RTK reference station;

[0037] The RTK positioning module is connected to the RTK base station and the communication satellite respectively, and the UWB positioning module is connected to the UWB positioning beacon.

[0038] Through the above technical solutions, it can be known that compared with the prior art, the present invention discloses a multi-network integrated emergency communication command and dispatch system, which integrates broadband networks, narrowband networks, and positioning networks according to scene characteristics and business needs to achieve multi-network integration and one network for multiple uses; realizes comprehensive indoor and outdoor wireless coverage through wireless ad hoc networks, reduces wiring costs, and improves network reliability; combines MESH wireless ad hoc networking technology, RTK positioning technology, and UWB positioning technology through single mobile devices to achieve centimeter-level high-precision positioning, and realizes seamless switching and integrated positioning indoors and outdoors; the present invention ensures reliable communication in "three-no" scenarios through a variety of networking methods, and realizes efficient handling and efficient decision-making at the accident site, as well as on-site + remote multi-level command and dispatch. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0040] Figure 1 A schematic diagram of a multi-network integrated emergency communication command and dispatch system provided by the present invention;

[0041] Figure 2 A schematic diagram of a self-organizing network transmission link of a multi-network integrated emergency communication command and dispatch system provided by the present invention;

[0042] Figure 3 A schematic diagram of the structure and workflow of a single mobile device provided by the present invention;

[0043] Figure 4 A schematic diagram of LTE private network communication provided by the present invention;

[0044] Figure 5 A schematic diagram of LoRA private network communication provided by the present invention;

[0045] Figure 6 A schematic diagram of wireless ad hoc network communication provided by the present invention. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The embodiment of the present invention discloses a multi-network integrated emergency communication command and dispatch system. Figure 1 and Figure 2 , including terminal acquisition equipment, multi-network communication equipment, on-site command center, remote communication link and remote dispatch center connected in sequence;

[0048] Terminal acquisition equipment, used to collect video data, voice data, sensor data and positioning data information on site;

[0049] Multi-network communication equipment includes LTE private network communication equipment, LoRA private network equipment and wireless ad hoc network communication equipment;

[0050] LTE private network communication equipment, used to provide broadband wireless communication services and support the transmission of video, voice and data;

[0051] LoRA private network communication equipment, used to connect low-power devices and collect data, and send collected data through LoRA communication;

[0052] Wireless ad hoc network communication equipment, used to establish a temporary communication network for terminal acquisition equipment in the absence of fixed network facilities;

[0053] The on-site command center is used to perform multi-link aggregation of LTE private network communication equipment, LoRA private network equipment and wireless ad hoc network communication equipment, perform on-site scheduling based on the collected video data, voice data, sensor data and positioning data information, and send the collected video data, voice data, sensor data and positioning data information to the remote scheduling center through the remote communication link.

[0054] In this embodiment, the on-site command center is a front-end command center, such as a district or county-level command center, and the remote dispatch center is a superior command center, such as a city-level command center.

[0055] In order to further implement the above technical solutions, the terminal collection equipment includes single mobile devices, drones, self-organizing network terminals, LTE private network terminals and LoRA private network terminals.

[0056] In order to further implement the above technical solution, a single mobile device is used to perform indoor and outdoor integrated positioning of emergency rescue personnel, and transmit the positioning data and other audio and video data back to the on-site command center through wireless ad hoc network communication equipment.

[0057] In order to further implement the above technical solution, Figure 3 ,The single mobile device includes RTK positioning module, UWB positioning module, fusion positioning processor and ad hoc network communication module;

[0058] RTK positioning module, used in outdoor scenarios to receive positioning data from Beidou satellites and differential correction data from RTK base stations, and perform self-position correction to achieve centimeter-level accuracy;

[0059] UWB positioning module, used to receive positioning measurement signals from multiple UWB beacons in indoor scenarios and determine the current position coordinates through the TDOA algorithm;

[0060] The fusion positioning processor is used for overlapping areas of indoor and outdoor positioning. The RTK positioning module and the UWB positioning module are in working state at the same time and report positioning data at the same time. The processor predicts the position coordinates according to the historical trajectory, and compares the position data of the two positioning modules and uses the best one until the data deviation of the former positioning module exceeds the preset threshold and completely switches to the latter positioning mode;

[0061] The ad hoc network communication module is used to send the positioning data obtained by the RTK positioning module, UWB positioning module or fusion positioning processor to the on-site command center through the wireless ad hoc network communication device.

[0062] In this embodiment, the single mobile device can not only realize continuous positioning in both indoor and outdoor scenarios, but also ensure seamlessness and smoothness when switching between the two modes; in addition, because the scene in the accident rescue scenario is very likely to lack conventional communication conditions, a wireless self-organizing network technology with a centerless multi-hop relay feature is used to transmit positioning data back, and the positioning data can be reliably transmitted from the rescue personnel (i.e., the single mobile device) to the off-site command platform, which can be dynamically networked and has strong anti-destruction capabilities.

[0063] In order to further implement the above technical solutions, the on-site command center includes a multi-link fusion terminal, a dispatch control module, a remote communication switching module and a multimedia display module;

[0064] Multi-link fusion terminal, used to perform multi-link aggregation on LTE private network communication equipment, LoRA private network equipment and wireless ad hoc network communication equipment, and send the collected data to the dispatch control module, remote communication switching module and multimedia display module;

[0065] A dispatching control module is used to dispatch and control the terminal acquisition equipment according to the collected data;

[0066] A remote communication switching module, used to select a link according to the signal strength of each remote communication link and send the collected data to a remote dispatch center;

[0067] Multimedia display module, used to display the collected data on site.

[0068] In order to further implement the above technical solutions, the long-distance communication link includes communication satellite, operator network and ad hoc network communication link.

[0069] In order to further implement the above technical solution, Figure 4 ,LTE private network communication equipment includes wireless access network and core network;

[0070] The private network terminal is connected to the wireless access network and the core network in sequence, and the data collected by the private network terminal is sent to the on-site command center through the wireless access network and the core network.

[0071] In this embodiment, the wireless access network includes fixed, vehicle-mounted and portable types; the private network terminals include but are not limited to LTE mobile phones, CPE gateways and their connection devices, private network cameras and drones.

[0072] In order to further implement the above technical solution, Figure 5 , LoRA private network devices include indoor LoRA gateways and outdoor LoRA gateways;

[0073] LoRA private network terminals include indoor LoRA private network terminals and outdoor LoRA private network terminals;

[0074] The indoor LoRA private network terminal transmits the collected data to the on-site command center through the indoor LoRA gateway;

[0075] The outdoor LoRA private network terminal transmits the collected data to the on-site command center through the outdoor LoRA gateway.

[0076] In this embodiment, the LoRA private network terminals are mainly various monitoring sensors used for parameter detection such as air, meteorology, pipelines, hydrology, and soil.

[0077] In actual applications, according to the transmission distance, LoRA private network equipment also includes NB-loT private network terminals and NB-loT gateways.

[0078] In order to further implement the above technical solution, Figure 6 ,The wireless ad hoc network communication equipment includes the Internet of Things gateway, ad hoc network and positioning base station, ad hoc network transmission base station and ad hoc network link.

[0079] The ad hoc network terminal sends the collected data and positioning data to the on-site command center through the IoT gateway, the ad hoc network and the positioning base station via the ad hoc network link and the ad hoc network transmission station.

[0080] In this embodiment, the ad hoc network terminals include but are not limited to drones, ad hoc network cameras, individual equipment and emergency communication vehicles.

[0081] In order to further implement the above technical solutions, the multi-network communication equipment also includes UWB positioning beacons and RTK base stations;

[0082] The RTK positioning module is connected to the RTK base station and the communication satellite respectively, and the UWB positioning module is connected to the UWB positioning beacon.

[0083] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0084] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-network integrated emergency communication command and dispatch system, It is characterized in that It includes terminal acquisition equipment, multi-network communication equipment, on-site command center, remote communication link and remote dispatch center connected in sequence; Terminal acquisition equipment, used to collect video data, voice data, sensor data and positioning data information on site; Multi-network communication equipment includes LTE private network communication equipment, LoRA private network equipment and wireless ad hoc network communication equipment; LTE private network communication equipment, used to provide broadband wireless communication services and support the transmission of video, voice and data; LoRA private network communication equipment, used to connect low-power devices and collect data, and send collected data through LoRA communication; Wireless ad hoc network communication equipment, used to establish a temporary communication network for terminal acquisition equipment in the absence of fixed network facilities; The on-site command center is used to perform multi-link aggregation of LTE private network communication equipment, LoRA private network equipment and wireless ad hoc network communication equipment, perform on-site scheduling based on the collected video data, voice data, sensor data and positioning data information, and send the collected video data, voice data, sensor data and positioning data information to the remote scheduling center through the remote communication link.

2. A multi-network integrated emergency communication command and dispatch system according to claim 1, It is characterized in that Terminal collection devices include single mobile devices, drones, ad hoc network terminals, LTE private network terminals and LoRA private network terminals.

3. A multi-network integrated emergency communication command and dispatch system according to claim 2, It is characterized in that A single mobile device is used to perform indoor and outdoor integrated positioning of emergency rescue personnel, and transmit the positioning data and other audio and video data back to the on-site command center through wireless ad hoc network communication equipment.

4. A multi-network integrated emergency communication command and dispatch system according to claim 3, It is characterized in that The single mobile device includes an RTK positioning module, a UWB positioning module, a fusion positioning processor and an ad hoc network communication module; RTK positioning module, used in outdoor scenarios to receive positioning data from Beidou satellites and differential correction data from RTK base stations, and perform self-position correction to achieve centimeter-level accuracy; UWB positioning module, used to receive positioning measurement signals from multiple UWB beacons in indoor scenarios and determine the current position coordinates through the TDOA algorithm; The fusion positioning processor is used for overlapping areas of indoor and outdoor positioning. The RTK positioning module and the UWB positioning module are in working state at the same time and report positioning data at the same time. The processor predicts the position coordinates according to the historical trajectory, and compares the position data of the two positioning modules and uses the best one until the data deviation of the former positioning module exceeds the preset threshold and completely switches to the latter positioning mode; The ad hoc network communication module is used to send the positioning data obtained by the RTK positioning module, UWB positioning module or fusion positioning processor to the on-site command center through the wireless ad hoc network communication device.

5. A multi-network integrated emergency communication command and dispatch system according to claim 1, It is characterized in that The on-site command center includes a multi-link fusion terminal, a dispatch control module, a remote communication switching module, and a multimedia display module; Multi-link fusion terminal, used to perform multi-link aggregation on LTE private network communication equipment, LoRA private network equipment and wireless ad hoc network communication equipment, and send the collected data to the dispatch control module, remote communication switching module and multimedia display module; A dispatching control module is used to dispatch and control the terminal acquisition equipment according to the collected data; A remote communication switching module, used to select a link according to the signal strength of each remote communication link and send the collected data to a remote dispatch center; Multimedia display module, used to display the collected data on site.

6. A multi-network integrated emergency communication command and dispatch system according to claim 1, It is characterized in that Long-distance communication links include communication satellites, operator networks and ad hoc network communication links.

7. A multi-network integrated emergency communication command and dispatch system according to claim 1, It is characterized in that LTE private network communication equipment includes wireless access network and core network; The private network terminal is connected to the wireless access network and the core network in sequence, and the data collected by the private network terminal is sent to the on-site command center through the wireless access network and the core network.

8. The multi-network integrated emergency communication command and dispatch system according to claim 1, It is characterized in that LoRA private network devices include indoor LoRA gateways and outdoor LoRA gateways; LoRA private network terminals include indoor LoRA private network terminals and outdoor LoRA private network terminals; The indoor LoRA private network terminal transmits the collected data to the on-site command center through the indoor LoRA gateway; The outdoor LoRA private network terminal transmits the collected data to the on-site command center through the outdoor LoRA gateway.

9. The multi-network integrated emergency communication command and dispatch system according to claim 1, It is characterized in that Wireless ad hoc network communication equipment includes IoT gateways, ad hoc network and positioning base stations, ad hoc network transmission base stations and ad hoc network links; The ad hoc network terminal sends the collected data and positioning data to the on-site command center through the IoT gateway, the ad hoc network and the positioning base station via the ad hoc network link and the ad hoc network transmission station.

10. A multi-network integrated emergency communication command and dispatch system according to claim 4, It is characterized in that Multi-network communication equipment also includes UWB positioning beacons and RTK base stations; The RTK positioning module is connected to the RTK base station and the communication satellite respectively, and the UWB positioning module is connected to the UWB positioning beacon.

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