CN216253261U

CN216253261U - Environmental monitoring alarm device based on LoRa and NB-IoT technique

Info

Publication number: CN216253261U
Application number: CN202122303617.9U
Authority: CN
Inventors: 姚津; 李嘉意
Original assignee: Shanghai Shinever Technologies Co ltd
Current assignee: Shanghai Shinever Technologies Co ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-04-08
Anticipated expiration: 2031-09-23

Abstract

The utility model belongs to the field of environmental monitoring and alarming, relates to a remote environmental monitoring and alarming electronic device, and particularly relates to an environmental monitoring and alarming device based on LoRa and NB-IoT technologies. In the monitoring alarm device, the sensor digital information can be relayed and transmitted in two communication modes of LoRa and NB-IoT, deployment convenience and high penetrability in limited transmission distance of LoRa communication are realized, and the high-efficiency coverage of a batch of sensor networks is completed by combining a telecommunication level cellular network of NB-IoT, high reliability and low cost.

Description

Environmental monitoring alarm device based on LoRa and NB-IoT technique

Technical Field

The utility model belongs to the field of environment monitoring and alarming, relates to a remote environment monitoring and alarming electronic device, and particularly relates to a remote environment monitoring and alarming device based on LoRa and NB-IoT communication technologies and supported by a remote cloud service platform.

Background

With the rapid development of modern communication technology, people have more and more means and solutions in the face of various natural environment protection, environmental monitoring under the condition of coping with natural disasters or severe environments. In various atmospheric monitoring and environmental monitoring processes and environments, real-time signals of various monitoring data, including real-time atmospheric data, air quality data, position information and the like, are timely acquired and become a key component in the whole environmental monitoring and alarming process.

The monitoring alarm device can send data signals through conventional communication infrastructure, such as mobile communication networks, WI-FI and other platforms, and can send collected monitoring data, physical position information, other environmental information and necessary alarm information to a back-end service platform at the first time so as to organize necessary environmental disaster coping actions and necessary lifesaving and rescue actions in time.

However, in many specific situations, due to the application scenario implemented by the monitoring and alarming device, that is, the environment monitored by the device often has the characteristics of being relatively special, dynamic and dangerous, the environment itself monitored by the monitoring and alarming device is often full of uncertainty, and the communication infrastructure of the monitoring and alarming device for sending out the monitoring signal and the alarming information also depends on the environmental influence and is greatly limited by the communication environment.

Especially, under the condition similar to large-scale environment damage, such as natural disaster, fire disaster, flood and the like, the communication network can be damaged; in addition, under the extreme environment conditions of the ocean, the desert and the jungle lacking the coverage of the communication network, the process of monitoring the sending of the alarm information and obtaining the timely receiving faces a great challenge.

Particularly, the limitation on sending out monitoring alarm information mainly lies in that: natural disasters such as earthquake and the like cause the communication base station to be damaged, the monitoring system lacks a communication network, and important monitoring information cannot be sent out through the network base station of a communication operator; the wireless communication device is separated by various destroyed building materials and can not be connected with a survived wireless network such as a Wi-Fi gateway and the like; limited power supply, incapability of continuously sending alarm signals, and the like, are significant challenges for rescuing lives and properties by acquiring environmental parameters and alarm information under ruins, hills or sea in vast mountains under the condition that the monitoring alarm system is in an unconventional environment, particularly under the condition of emergency rescue. The missing of important monitoring and alarming information can lead to necessary emergency repair and rescue, and the losing of life and property caused by the delay of the rescue action.

With the development of the LoRa communication technology, the specific technical characteristics of the LoRa communication technology are widely recognized, and the LoRa communication technology has the remarkable characteristics of extremely low energy consumption, long-distance communication distance and extremely high barrier penetrability. Therefore, LoRa communication is gradually widely used in the intelligent sensing field to high cost performance connects sensing device, uses in gathering system such as environmental information.

Meanwhile, LoRa communication does not need to depend on a base station network of a communication operator, and a communication network can be dynamically formed between the node module and the gateway module to carry out data communication. Especially for regional environmental monitoring, such as marine fishery, grassland pasture, mountain village, residential area in town, factory enterprise, etc., the total cost and occupation of public resources caused by data transmission between each independent sensor and the server via the public communication network are unacceptable.

Under the application scene, the sensor network constructed by adopting the LoRa communication technology is undoubtedly a convenient, efficient, reliable and high-economical solution. On the other hand, although the LoRa communication technology has the outstanding advantages of extremely low energy consumption, high penetrability, extremely low cost and long relative transmission distance, the LoRa communication technology also has the characteristic that the LoRa communication technology cannot be directly connected with the internet or the internet of things for data processing on the cloud.

Therefore, the NB-IoT communication technology is used as a transmission channel between the LoRa communication and the cloud server platform, and the data transmission device from the sensor to the LoRa gateway and from the LoRa gateway to the NB-IoT network are constructed and then transmitted to the cloud platform.

Under the condition of extreme environment, namely under the condition of no operator NB-IoT network, the device can also construct an alarm communication channel through LoRaWAN nodes (nodes), LoRa gateways dynamically deployed and dynamic NB-IoT communication equipment carried on an unmanned aerial vehicle platform, and complete the device for emergency repair under the condition of missing communication network coverage.

Disclosure of Invention

In order to solve the technical problems provided in the background technology, the utility model provides an environment monitoring alarm device based on the LoRa and NB-IoT technology, which adopts a sensing and LoRa communication Node (Node) module, a LoRa gateway module locally or dynamically deployed in an unmanned aerial vehicle in a region, and an NB-IoT/MQTT communication module to form a dynamic LoRa private network or public network, collects relevant environment information and transmits the information to a background server through an NB-IoT communication network so as to analyze data and organize corresponding environment coping actions; meanwhile, equipment such as an unmanned aerial vehicle and the like can be used as a platform for rapid and dynamic deployment, and an LoRa gateway or other LoRa communication receiving equipment can be rapidly and conveniently deployed to a target area to collect environmental signals and related information; the function module integrated by the sensing and LoRa node equipment can be communicated with a device user, namely, the mobile terminal equipment of a target area is subjected to Bluetooth communication, so that the equipment can be rapidly configured, and the mobile terminal of the user is used as a user interface to receive characters, position other environmental parameters or emergency alarm information, so that the functions and the size of the sensing and LoRa node communication equipment are simplified, the energy consumption is reduced, and the survivability, the convenience and the safety of the system are greatly improved.

In the scheme of the utility model, LoRa is a physical layer or wireless modulation technology for establishing long-distance communication connection, and compared with the traditional FSK technology, the LoRa technology based on the CSS (chip Spread Spectrum) can greatly increase the communication range, has the characteristics of long transmission distance, strong anti-interference performance and the like, realizes the unification of low power consumption and long-distance transmission, and can reach 2-5 kilometers in the ISM working frequency band, the town transmission distance can reach 15 kilometers in open environments such as suburbs and the like, and the service life of a battery can be more than 10 years. The LoRa communication has the Forward Error Correction (FEC) capability and strong penetrability, and can ensure good communication quality under the shielding of building materials. In the aspect of the dynamic networking of LoRa, the LoRa node that a LoRa gateway can connect can reach thousands to tens of thousands of orders of magnitude, and LoRa communication protocol self possesses the positioning mechanism simultaneously, can be by the LoRa gateway according to with the communication analysis obtain the positional information of node between the LoRa node.

In the solution of the present invention, NB-IoT refers to a narrowband Internet of Things (Narrow Band-Internet of Things) technology based on a cellular network. NB-IOT focuses on the low power wide coverage (LPWA) internet of things (IOT) market, an emerging technology that can be widely applied worldwide. The NB-IOT uses a License frequency band, can adopt three deployment modes such as in-band, guard band or independent carrier, and coexists with the existing network. Or, NB-IoT is based on existing commercial cellular network base stations, but unlike voice communication or messaging channels, NB-IoT is a communication protocol dedicated to data transmission. NB-IoT is also much lower in cost than voice communication. The MQTT technology based on NB-IoT provides a convenient interface for data transmission, and data is convenient to publish and subscribe.

The NB-IoT communication has the following characteristics:

the characteristics are as follows: the low power consumption-low power consumption characteristic is an important index for the application of the Internet of things, and is particularly suitable for some equipment and occasions where batteries cannot be replaced frequently. NB-IoT focuses on small data volume, low rate applications, so NB-IoT device power consumption can be made very small, and device endurance can be greatly increased from the past months to years.

And (2) the characteristics: low cost-NB-IoT requires no re-networking and both the radio frequency and the antenna are essentially multiplexed. Taking china mobile as an example, a relatively wide frequency band is in 900MHZ, and simultaneous deployment of LTE and NB-IoT can be directly performed only by clearing a part of 2G frequency bands. Low speed, low power consumption, low bandwidth also bring low cost advantages to NB-IoT chips and modules. The module is expected to cost no more than $ 5.

And (3) characteristics: strong link-in the case of the same base station, NB-IoT can provide 50-100 times the number of accesses than existing wireless technologies. One sector can support 10 ten thousand connections, and support low delay sensitivity, ultra-low equipment cost, low equipment power consumption and optimized network architecture. In a not too large space, placing more devices without interfering with each other, NB-IoT is enough to easily meet the networking demands of a large number of devices in a future smart home.

And (4) the characteristics are as follows: the indoor coverage capability of the high-coverage NB-IoT is strong, the gain is improved by 20dB compared with that of LTE, and the capacity of a coverage area is improved by 100 times. The system can meet the wide coverage requirement of rural areas, and is also applicable to the applications of factories, underground garages and well covers with requirements on deep coverage.

The utility model relates to an environment monitoring alarm device based on LoRa and NB-IoT technology, which is characterized in that:

1. the user of the device, namely the operator in the target area, can activate the device in a contact or non-contact way in a close range of the environment monitoring and alarming device through a mobile terminal platform with a Bluetooth function, such as a smart phone and the like, so as to carry out data parameter sampling and transmission configuration, connect the LoRa network of the device with the NB-IoT service end platform, and can edit and send out an emergency alarming signal in time so as to obtain the fastest time effect and convenient effect for sending out environment parameter data and sending out alarming information in an emergency situation.

2. The intelligent environment monitoring alarm device receives batch sensing LoRa node module data information in a LoRa communication mode, does not need a connecting device for wired communication, does not need to establish conventional steps or media of other wireless communication, and is a monitoring alarm system deployment device with low cost, high coverage and high operability.

3. The LoRa node monitoring and alarming device integrates sensing in batches, and data transmission efficiency and maintainability of the whole system can be greatly improved by carrying out remote data transmission through the independent single NB-IoT/MQTT client gateway module, so that the data transmission cost is reduced, and the dependence on an operator network is reduced.

4. Under the condition that lacks operator's network and basic station, with loRa gateway and NB-IoT/MQTT client gateway device by unmanned aerial vehicle rapid deployment to the target area, can be in the lifesaving rescue application scene, dynamic real-time acquisition target environment's sensory data parameter, and combine loRa communication module, the device can provide the long lasting, low-power consumption, strong anti-interference, the environmental monitoring information transmission channel of strong penetrability, strengthened the monitoring parameter signal greatly and received, and in time send alarm signal in necessary in order to obtain the possibility of relevant environment emergency repair action.

The mobile terminal unit in the device is a human-computer interface device, namely a smart phone or a tablet computer; the system is used for carrying out system configuration on each sensing and LoRa node unit and the client LoRa/NB-IoT communication gateway through a man-machine interface; meanwhile, alarm information such as an emergency short message and the like can be edited, and operations such as alarm sending frequency and the like can be set; the mobile terminal unit is a general-purpose device that provides device functionality, excluding application software and any other logical calculations.

The sensing and LoRa node unit in the device is an LoRa communication functional module which integrates an environment monitoring alarm or other local data acquisition sensors and wirelessly transmits data; each sensing and loRa node unit can be constructed by different environmental parameter sensors, and the loRa functional module is for possessing the same function but being equipped with the loRa node communication module of independent node number.

The LoRa gateway unit in the device receives data information transmitted by each sensing and LoRa node unit in a region through a LoRa communication channel through a LoRaWAN communication protocol, and transmits the data information to the local communication gateway module for transmitting remote data of the NB-IoT/MQTT client unit; the LoRa gateway unit can be deployed to a target area dynamically by the unmanned aerial vehicle platform, receives data information of sensing and the LoRa node unit in real time, and then transmits the information to the background cloud server.

The NB-IoT/MQTT client unit is a communication module which is based on the NB-IoT communication technology and transmits data information of data to be transmitted by an MQTT protocol; the NB-IoT communication service is provided by a local communication network base station supported by a communication operator.

An NB-IoT/MQTT server unit in the device receives data information transmitted by an NB-IoT communication channel for a cloud service platform, and distributes the information through an MQTT data server established on an NB-IoT protocol, so that a client of data information service can obtain required data information. The NB-IoT/MQTT server-side unit is used for general data transmission and basic functions of equipment, and does not comprise application software and any other logic calculation.

The cloud server unit is a cloud server platform providing the device, and is used for receiving sensor data information and then distributing the data or transmitting the data to other background servers, such as a data platform like a block chain platform.

The LoRa communication technology in the device is used for carrying out data transmission between the LoRa nodes (nodes) and the LoRa gateways (gateways) by using a LoRa communication protocol, is based on a spread spectrum technology, is in ISM working frequency bands of 433, 868 and 915MHz, and has the technical characteristics of low power consumption, long transmission distance, strong transmission penetrating power and the like. The nodes or gateway devices supporting the LoRa are terminals and equipment with the same communication function by using the LoRa communication protocol.

The NB-IoT in the device of the utility model refers to a narrowband Internet of Things (Narrow Band-Internet of Things) technology based on a cellular network. NB-IOT focuses on the low power wide coverage (LPWA) internet of things (IOT) market, an emerging technology that can be widely applied worldwide. The NB-IOT uses a License frequency band, can adopt three deployment modes such as in-band, guard band or independent carrier, and coexists with the existing network. Or, NB-IoT is based on existing commercial cellular network base stations, but unlike voice communication or messaging channels, NB-IoT is a communication protocol dedicated to data transmission. NB-IoT is also much lower in cost than voice communication. The MQTT technology based on NB-IoT provides a convenient interface for data transmission, and data is convenient to publish and subscribe.

The technical scheme of the utility model has the advantages that:

1. in the monitoring alarm device, the sensor digital information can be relayed and transmitted in two communication modes of LoRa and NB-IoT, deployment convenience and high penetrability in limited transmission distance of LoRa communication are realized, and the high-efficiency coverage of a batch of sensor networks is completed by combining a telecommunication level cellular network of NB-IoT, high reliability and low cost.

2. In the monitoring alarm device, the sensor digital information covers basic environment information parameters including atmospheric temperature, humidity, atmospheric pressure, air quality parameters PM2.5, PM10, physical coordinate positioning information and the like.

3. In the monitoring alarm device, alarm information is sent through the LoRa node device, and the monitoring alarm device supports ultra-long distance signal sending (up to 5-15 kilometers), strong signal penetrating power and ultra-long battery service life (up to 10 years).

4. Among this monitoring alarm device, the loRa gateway passes through unmanned aerial vehicle and deploys, can reach the swift of loRa network deployment, convenience.

5. The monitoring alarm device has the advantages of simple integral structure, mature and reliable technology, relatively low price, high application degree of the applicable monitoring alarm scene and high marketization possible degree.

Drawings

FIG. 1 is a schematic view of the apparatus of the present invention; the system comprises a 1-mobile terminal unit, a 2-sensing and LoRa node unit, a 3-LoRa gateway unit, a 4-NB-IoT/MQTT client unit, a 5-NB-IoT/MQTT server unit and a 6-cloud server unit.

FIG. 2 is a schematic view of an embodiment of the apparatus of the present invention; the system comprises a 1-mobile terminal unit, a 2-sensing and LoRa node unit, a 3-LoRa gateway unit, a 4-NB-IoT/MQTT client unit, a 5-NB-IoT/MQTT server unit and a 6-cloud server unit.

FIG. 3 is a schematic view of a second embodiment of the apparatus of the present invention; the system comprises a mobile terminal unit 1, a sensing and LoRa node unit 2, an unmanned aerial vehicle-based LoRa gateway unit 3, an unmanned aerial vehicle-based NB-IoT/MQTT client unit 4, an unmanned aerial vehicle-based NB-IoT/MQTT server unit 5 and a cloud server unit 6.

Detailed Description

The present invention will be described more fully hereinafter with reference to the accompanying drawings, in which a preferred embodiment of the utility model is shown, by way of example, to illustrate how the utility model may be carried into effect, and which will make apparent and understandable the technical content thereof to those skilled in the art.

The present invention may be embodied in many different forms of embodiments, and the scope of protection is not limited to the embodiments described herein, which are illustrative rather than restrictive in nature.

As shown in the accompanying drawing 1, the environment monitoring and alarming device based on the LoRa and NB-IoT technology of the present invention comprises a mobile terminal unit 1, a sensing and LoRa node unit 2, an LoRa gateway unit 3, an NB-IoT/MQTT client unit 4, an NB-IoT/MQTT server unit 5, and a cloud server unit 6, which are connected in sequence.

The mobile terminal unit 1 in the utility model is a human-computer interface device, i.e. a smart phone or a tablet computer; the system is used for carrying out system configuration on each sensing and LoRa node unit 2 and the client LoRa/NB-IoT communication gateway through a man-machine interface; the mobile terminal unit 1 is a general-purpose device that provides device functions, excluding application software and any other logical calculations. The sensing and LoRa node unit 2 is an LoRa communication functional module which integrates an environment monitoring alarm or other local data acquisition sensors and wirelessly transmits data; each sensing and loRa node unit 2 can be constructed by different environmental parameter sensors, and the loRa functional module is for possessing the same function but being equipped with the loRa node communication module of independent node number. The LoRa gateway unit 3 is a local communication gateway module which receives data information transmitted by each sensing and LoRa node unit 2 in the region through a LoRa communication channel through a LoRaWAN communication protocol and transmits the data information to the NB-IoT/MQTT client unit 4 for remote data transmission; LoRa gateway unit 3 can be deployed to the target area by unmanned aerial vehicle platform developments, receives the data message of sensing and LoRa node element 2 in real time, and then transmits information to backstage cloud service end. The NB-IoT/MQTT client unit 4 is a communication module which is based on the NB-IoT communication technology and transmits data information of data to be transmitted by an MQTT protocol; the NB-IoT communication service is provided by a local communication network base station supported by a communication operator. The NB-IoT/MQTT server unit 5 receives data information transmitted by the NB-IoT communication channel for the cloud service platform, and distributes the information through the MQTT data server established on the NB-IoT protocol, so that clients of the data information service can obtain the required data information. The NB-IoT/MQTT server-side unit 5 is a general data transmission and basic device function, and does not include application software and any other logic calculation. The cloud server unit 6 is a cloud server platform providing the device of the present invention, and is configured to receive sensor data information, and then distribute the data, or transmit the data to other background servers, such as a data platform such as a block chain platform.

Example one

As shown in the utility model fig. 2, the present embodiment demonstrates and realizes the environmental monitoring alarm device based on LoRa and NB-IoT technology, accomplishes and sends real-time monitoring data information and the emergency alarm signal when necessary to the monitoring alarm target.

In this embodiment, the environmental monitoring alarm device based on the LoRa and NB-IoT technologies is composed of a mobile terminal unit 1, a sensing and LoRa node unit 2, an LoRa gateway unit 3, an NB-IoT/MQTT client unit 4, an NB-IoT/MQTT server unit 5, and a cloud server unit 6, which are sequentially connected. In this embodiment, the LoRa gateway unit 3 and the NB-IoT/MQTT client unit 4 are communication devices locally deployed in the sensor network, and transmit data information via the cellular network of the operator.

In the structure, the LoRa gateway unit 3 and the NB-IoT/MQTT client unit 4 are integrated into a dual gateway structure in this embodiment to complete the processes of receiving LoRa data information, converting the LoRa data information into NB-IoT data format, and completing data remote transmission by NB-IoT/MQTT communication protocol.

The mobile terminal unit 1 in this embodiment is a human interface device, i.e., a smart phone or a tablet computer; the system is used for carrying out system configuration on each sensing and LoRa node unit 2 and the client LoRa/NB-IoT communication gateway through a man-machine interface; the mobile terminal unit 1 is a general-purpose device that provides device functions, excluding application software and any other logical calculations.

The sensing and LoRa node unit 2 in this embodiment is an LoRa communication function module that integrates an environmental monitoring alarm or other local data acquisition sensors and wirelessly transmits data; each sensing and loRa node unit 2 can be constructed by different environmental parameter sensors, and the loRa functional module is for possessing the same function but being equipped with the loRa node communication module of independent node number.

The LoRa gateway unit 3 is a local communication gateway module that receives data information transmitted by each sensing and LoRa node unit 2 through the LoRa communication channel in the area through the LoRaWAN communication protocol, and transmits the data information to the NB-IoT/MQTT client unit 4 for remote data transmission.

The NB-IoT/MQTT client unit 4 is a communication module which is based on the NB-IoT communication technology and transmits data information of data to be transmitted by an MQTT protocol; the NB-IoT communication service is provided by a local communication network base station supported by a communication operator.

The LoRa gateway unit 3 and the NB-IoT/MQTT client unit 4 are communication devices deployed locally in the sensor network in this embodiment, and transmit data information via the cellular network of the carrier. In the structure, the LoRa gateway unit 3 and the NB-IoT/MQTT client unit 4 are integrated into a dual gateway structure to complete the processes of receiving LoRa data information, converting the LoRa data information into NB-IoT data format, and completing data remote transmission by NB-IoT/MQTT communication protocol.

In this embodiment, the NB-IoT/MQTT server unit 5 receives data information transmitted by the NB-IoT communication channel for the cloud service platform, and distributes the information through the MQTT data server established on the NB-IoT protocol, so that a client of the data information service can obtain required data information.

The NB-IoT/MQTT server-side unit 5 is a general data transmission and basic device function, and does not include application software and any other logic calculation.

The cloud server unit 6 in this embodiment is a cloud server platform providing the device of the present invention, and is configured to receive sensor data information, and then distribute the data, or transmit the data to other background servers, such as a data platform like a block chain platform.

Example two

As shown in the utility model fig. 3, the present embodiment demonstrates and realizes the environmental monitoring alarm device based on the LoRa and NB-IoT technology, and accomplishes the emergency alarm signal that sends real-time monitoring data information and necessary to the monitoring alarm target.

In this embodiment, the environmental monitoring alarm device based on the LoRa and NB-IoT technologies is composed of a mobile terminal unit 1, a sensing and LoRa node unit 2, an LoRa gateway unit 3, an NB-IoT/MQTT client unit 4, an NB-IoT/MQTT server unit 5, and a cloud server unit 6, which are sequentially connected. In this embodiment, the LoRa gateway unit 3 and the NB-IoT/MQTT client unit 4 are devices installed on the platform of the unmanned aerial vehicle, and can be dynamically deployed in an application scenario where a conventional communication network is missing, that is, a missing conventional network base station or a network base station is damaged by natural or artificial disasters, or an application scenario where the LoRa gateway needs to be dynamically deployed for communication relay in an extreme environment such as the sea or desert.

In the structure, a rigid fixed connection structure is arranged between the LoRa gateway unit 3, the NB-IoT/MQTT client unit 4 or other modules for relaying LoRa communication and the unmanned aerial vehicle platform, so as to complete dynamic deployment and receive LoRa data information, convert data formats and complete remote data transmission.

The LoRa gateway unit 3 and the NB-IoT/MQTT client unit 4 are devices installed on the platform of the unmanned aerial vehicle in this embodiment, and can be dynamically deployed in an application scenario where a conventional communication network is missing, that is, a conventional network base station is missing or a network base station is damaged by natural or artificial disasters, or an application scenario where the LoRa gateway needs to be dynamically deployed for communication relay in an extreme environment such as sea, desert, or the like in a target area.

Claims

1. Environmental monitoring alarm device based on loRa and NB-IoT technique, its characterized in that: the environment monitoring and alarming device based on the LoRa and NB-IoT technology comprises a mobile terminal unit, a sensing and LoRa node unit, a LoRa gateway unit, an NB-IoT/MQTT client unit, an NB-IoT/MQTT server unit and a cloud server unit which are sequentially connected.

2. The environmental monitoring alarm device based on LoRa and NB-IoT technology of claim 1, wherein the mobile terminal unit is a human interface device, i.e., a smartphone or a tablet computer; the system is used for carrying out system configuration on the sensing and LoRa node unit and the client LoRa/NB-IoT communication gateway; the mobile terminal unit is a general-purpose device that provides device functions, and does not include installed application software and its functions.

3. The environmental monitoring alarm device based on LoRa and NB-IoT technology of claim 1, wherein the sensing and LoRa node unit is an LoRa communication function module that integrates an environmental monitoring alarm data acquisition sensor and wirelessly transmits data; each sensing and loRa node unit can be constructed by different environmental parameter sensors, and the loRa functional module is for possessing the same function but being equipped with the loRa node communication module of independent node number.

4. The environmental monitoring alarm device based on LoRa and NB-IoT technologies as claimed in claim 1, wherein the LoRa gateway module is a local communication gateway module that receives data information transmitted by each sensing and LoRa node unit in the area via LoRa communication channels via a LoRa wan communication protocol, and transmits the data information to an NB-IoT/MQTT client unit for remote data transmission; the LoRa gateway unit can be dynamically deployed to a target area by the unmanned aerial vehicle platform, receives data information of sensing and the LoRa node unit in real time, and transmits the information to the background cloud server.

5. The environmental monitoring alarm device based on LoRa and NB-IoT technologies according to claim 1, wherein the NB-IoT/MQTT client unit is a communication module based on NB-IoT communication technologies and configured to transmit data information of data to be transmitted according to MQTT protocols; the NB-IoT communication service is provided by a local communication network base station supported by a communication operator.

6. The environment monitoring and alarming device based on the LoRa and NB-IoT technologies, according to claim 1, wherein the NB-IoT/MQTT server-side unit receives data information transmitted by an NB-IoT communication channel for a cloud service platform, and distributes the information through an MQTT data server-side established on an NB-IoT protocol, so that a client of data information service obtains required data information; the NB-IoT/MQTT server-side unit has the basic functions of general data transmission and equipment and does not comprise the installed application software and the functions thereof.

7. The environment monitoring and alarming device based on the LoRa and NB-IoT technology as claimed in claim 1, wherein the cloud server unit is a server platform on the cloud for receiving sensor data information and then distributing the data.