CN208540180U

CN208540180U - A kind of base station LoRaWAN and communication system

Info

Publication number: CN208540180U
Application number: CN201820989220.5U
Authority: CN
Inventors: 郎翊东
Original assignee: Hangzhou Langyang Technology Co Ltd
Current assignee: Hangzhou Langyang Technology Co Ltd
Priority date: 2018-06-26
Filing date: 2018-06-26
Publication date: 2019-02-22
Anticipated expiration: 2028-06-26

Abstract

The utility model discloses a kind of base station LoRaWAN and communication systems.The base station LoRaWAN includes microprocessor, 4G module, power module and LoRaWAN gateway module, the LoRaWAN gateway module includes the first low-pass filter, RF switch, the second low-pass filter, programmable-gain power amplifier, the first SAW filter, balun circuit, radio frequency amplifier, the second SAW filter, the first SX1257 chip, the 2nd SX1257 chip and SX1301 chip, and the microprocessor is electrically connected with 4G module, power module and LoRaWAN gateway module respectively.LoRaWAN communication system includes the base station LoRaWAN, LoRa terminal and server.The multi channel concurrent receipt of multifrequency point may be implemented in the utility model, has higher receiving sensitivity, cost is relatively low, strong antijamming capability, is easy to dispose.

Description

A kind of base station LoRaWAN and communication system

Technical field

The utility model relates to field of communication technology more particularly to a kind of base station LoRaWAN and communication systems.

Background technique

The surge in whole world market low-power consumption wide area network (LPWAN) is attributable to Multiple factors in the recent period.Machine learning and M2M The fast development of communication standard has played important function, in addition demand of the whole world to Internet of Things service constantly increase, low price LPWAN tool and saving energy chance increase.The network when base station LoRaWAN has redefined the telecommunication link of physical layer Communication protocol and system architecture.

The shortcomings that prior art:

1, NB-IoT: application program is at high cost, and equipment must periodically carry out Network Synchronization, and battery life is shorter.Using awarding Frequency range is weighed, price is not low, and every megahertz of cost is greater than 500 dollars.The network coverage is gone on well in city, but in suburb or rural area Area (without the place of 4G covering) performance is general.It cannot be used for private network, be only used for public network.NB-IOT price Substantially half more expensive than LoRaWAN is upgraded to the advanced base station 4G/LTE ratio LoRa and passes through industrial gateway or tower top gateway It disposes more expensive.

2, ZigBee: being that price is relatively expensive first, and the amount of overhead that next agreement accounts for bandwidth is higher to channel bandwidth requirement, And this will affect communication distance and environmental suitability in turn, have to improve transmission power in practical applications, this just with The many advantages that zigbee is declared such as low-power consumption contradiction.Then, in terms of technology realization, zigbee agreement development difficulty is very Greatly, most of zigbee agreements are not increased income also, and various manufacturers' communication protocol is incompatible, greatly hinders the unification of equipment Property.It is finally exactly that current zigbee anti-interference is poor, signal decaying is fast, even if node separation obtains people mostly, communication can all have tired It is difficult.

3, Mesh: in a mesh network, independent terminal node can be logical to expand with the information of transfer other nodes Believe the coverage area of range and network.Complexity is also increased while increasing range, reduces network capacity and battery longevity Life, because node needs to receive and the information of other nodes of transfer, but these information are unrelated with itself.And node needs frequency It is numerous to wake up oneself to keep synchronous with network and check message.Many energy of this synchronous consumption and be that battery life reduces First driving factors.

Summary of the invention

The utility model to solve the above-mentioned problems, provides a kind of base station LoRaWAN and communication system, may be implemented The multi channel concurrent receipt of multifrequency point has higher receiving sensitivity, and cost is relatively low, strong antijamming capability, is easy to dispose.

To solve the above-mentioned problems, the utility model is achieved using following technical scheme:

A kind of base station LoRaWAN of the utility model, including microprocessor, 4G module, power module and LoRaWAN gateway Module, the LoRaWAN gateway module include the first low-pass filter, RF switch, the second low-pass filter, programmable-gain Power amplifier, the first SAW filter, balun circuit, radio frequency amplifier, the second SAW filter, the first SX1257 core Piece, the 2nd SX1257 chip and SX1301 chip, the microprocessor are electric with 4G module, power module and SX1301 chip respectively Connection, the SX1301 chip are defeated with the first SX1257 chip, the 2nd SX1257 chip and the first low-pass filter respectively Enter end electrical connection, the output end of first low-pass filter is electrically connected with the control terminal of RF switch, the RF switch First radio frequency connecting pin pass sequentially through the second low-pass filter, programmable-gain power amplifier, the first SAW filter, bar Human relations circuit is electrically connected with the first SX1257 chip, and the second radio frequency connecting pin of the RF switch passes through radio frequency amplifier and second The input terminal of SAW filter is electrically connected, the output end and the first SX1257 chip, second of second SAW filter The electrical connection of SX1257 chip.

LoRaWAN gateway module: orthogonal coding modulates the signal that receives, and it is now 470MHz that it is adaptive, which to receive frequency,. The work of SX1301 chip controls LoRaWAN gateway module.The base station LoRaWAN is wirelessly communicated by 4G module and server. The base station LoRaWAN, which is mainly responsible for, is transferred to server for the data of this node, completes data from LoRa mode to network mode Conversion, data are only packaged encapsulation and send server to, do not handled data by it.

Preferably, a kind of base station LoRaWAN further includes GPS positioning module, the GPS positioning module and micro process Device electrical connection.GPS positioning module is used for the positioning of base station, the longitude and latitude of base station is obtained, including height above sea level etc..

Preferably, a kind of base station LoRaWAN further includes lightning-protection module, the microprocessor by lightning-protection module with Power module electrical connection.

Preferably, the power module is battery.

Preferably, a kind of base station LoRaWAN further includes solar panels, the solar panels are electrically connected with power module It connects.Solar panels can charge a battery.

Preferably, a kind of base station LoRaWAN further includes POE module, the POE module respectively with power module and Microprocessor electrical connection.POE power supply can be used in the base station LoRaWAN, and POE can charge a battery when powering.

A kind of LoRaWAN communication system of the invention, including a kind of above-mentioned base station LoRaWAN, further including can be with LoRa terminal that the base station LoRaWAN carries out wireless communication and the server that 4G wireless communication can be carried out with the base station LoRaWAN.

The beneficial effects of the utility model are: the multi channel concurrent receipt of multifrequency point may be implemented, there is higher reception Sensitivity, cost is relatively low, strong antijamming capability, is easy to dispose.

Detailed description of the invention

Fig. 1 is a kind of circuit theory connection block diagram of the utility model；

Fig. 2 is a kind of circuit theory connection block diagram of LoRaWAN gateway module；

Fig. 3 is the circuit diagram of RF switch；

Fig. 4 is the circuit diagram of SAW filter；

Fig. 5 is the circuit diagram of balun circuit.

In figure: 1, microprocessor, 2,4G module, 3, power module, 4, LoRaWAN gateway module, the 5, first low-pass filtering Device, 6, RF switch, the 7, second low-pass filter, 8, programmable-gain power amplifier, the 9, first SAW filter, 10, Balun circuit, 11, radio frequency amplifier, the 12, second SAW filter, the 13, the first SX1257 chip, the 14, the 2nd SX1257 core Piece, 15, SX1301 chip, 16, GPS positioning module, 17, lightning-protection module, 18, solar panels, 19, POE module.

Specific embodiment

Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.

Embodiment: a kind of base station LoRaWAN of the present embodiment, as shown in Figure 1 and Figure 2, including microprocessor 1,4G module 2, Power module 3, lightning-protection module 17 and LoRaWAN gateway module 4, LoRaWAN gateway module 4 include the first low-pass filter 5, penetrate Frequency switch 6, programmable-gain power amplifier 8, the first SAW filter 9, balun circuit 10, is penetrated second low-pass filter 7 Audio amplifier 11, the second SAW filter 12, the first SX1257 chip 13, the 2nd SX1257 chip 14 and SX1301 chip 15, microprocessor 1 is electrically connected with 4G module 2 and SX1301 chip 15 respectively, and microprocessor 1 passes through lightning-protection module 17 and power supply mould Block 3 be electrically connected, SX1301 chip 15 respectively with the first SX1257 chip 13, the 2nd SX1257 chip 14 and the first low-pass filtering The input terminal of device 5 is electrically connected, and the output end of the first low-pass filter 5 is electrically connected with the control terminal of RF switch 6, RF switch 6 The first radio frequency connecting pin pass sequentially through the second low-pass filter 7, programmable-gain power amplifier 8, the first sound surface filtering Device 9, balun circuit 10 are electrically connected with the first SX1257 chip 13, and the second radio frequency connecting pin of RF switch 6 is amplified by radio frequency Device 11 is electrically connected with the input terminal of the second SAW filter 12, the output end and the first SX1257 of the second SAW filter 12 Chip 13, the electrical connection of the 2nd SX1257 chip 14.

The circuit diagram of RF switch, as shown in Figure 3.The knot of first SAW filter, the second SAW filter Structure is identical, and circuit diagram is as shown in Figure 4.The circuit diagram of balun circuit, as shown in Figure 5.

The base station LoRaWAN further includes GPS positioning module 16, and GPS positioning module 16 is electrically connected with microprocessor 1.GPS positioning Module is used for the positioning of base station, the longitude and latitude of base station is obtained, including height above sea level etc..

Power module 3 is battery.

The base station LoRaWAN further includes solar panels 18, and solar panels 18 are electrically connected with power module 3.Solar panels can It charges a battery.

The base station LoRaWAN further includes POE module 19, and POE module 19 is electrically connected with power module 3 and microprocessor 1 respectively. POE power supply can be used in the base station LoRaWAN, and POE can charge a battery when powering.

A kind of LoRaWAN communication system of the present embodiment, including a kind of above-mentioned base station LoRaWAN, further including can be with LoRa terminal that the base station LoRaWAN carries out wireless communication and the server that 4G wireless communication can be carried out with the base station LoRaWAN.

Claims

1. a kind of base station LoRaWAN, which is characterized in that including microprocessor (1), 4G module (2), power module (3) and LoRaWAN gateway module (4), the LoRaWAN gateway module (4) include the first low-pass filter (5), RF switch (6), the Two low-pass filters (7), programmable-gain power amplifier (8), the first SAW filter (9), balun circuit (10), radio frequency Amplifier (11), the second SAW filter (12), the first SX1257 chip (13), the 2nd SX1257 chip (14) and SX1301 Chip (15), the microprocessor (1) are electrically connected with 4G module (2), power module (3) and SX1301 chip (15) respectively, institute State SX1301 chip (15) respectively with the first SX1257 chip (13), the 2nd SX1257 chip (14) and the first low-pass filter (5) input terminal electrical connection, the output end of first low-pass filter (5) are electrically connected with the control terminal of RF switch (6), institute The the first radio frequency connecting pin for stating RF switch (6) passes sequentially through the second low-pass filter (7), programmable-gain power amplifier (8), the first SAW filter (9), balun circuit (10) are electrically connected with the first SX1257 chip (13), the RF switch (6) the second radio frequency connecting pin is electrically connected by radio frequency amplifier (11) with the input terminal of the second SAW filter (12), institute The output end for stating the second SAW filter (12) is electrically connected with the first SX1257 chip (13), the 2nd SX1257 chip (14).

2. a kind of base station LoRaWAN according to claim 1, which is characterized in that further include GPS positioning module (16), institute GPS positioning module (16) is stated to be electrically connected with microprocessor (1).

3. a kind of base station LoRaWAN according to claim 1, which is characterized in that it further include lightning-protection module (17), it is described micro- Processor (1) is electrically connected by lightning-protection module (17) with power module (3).

4. a kind of base station LoRaWAN according to claim 1 or 2 or 3, which is characterized in that the power module (3) is to store Battery.

5. a kind of base station LoRaWAN according to claim 4, which is characterized in that it further include solar panels, the solar energy Plate (18) is electrically connected with power module (3).

6. a kind of base station LoRaWAN according to claim 4, which is characterized in that further include POE module (19), the POE Module (19) is electrically connected with power module (3) and microprocessor (1) respectively.

7. a kind of LoRaWAN communication system, which is characterized in that including one kind described in any claim in claim 1-6 The base station LoRaWAN further includes the LoRa terminal that can be carried out wireless communication with the base station LoRaWAN and can be with LoRaWAN base It stands and carries out the server of 4G wireless communication.