A fleet management system based on LoRA technology

Abstract

The present invention discloses a fleet management system based on LoRA technology, the fleet management system comprises: a plurality of vehicle-mounted terminals, the vehicle-mounted terminals are provided with LoRA modules, computer modules, conversion circuit modules and terminal devices for transmitting information to vehicle personnel, the LoRA modules are wirelessly connected to external devices, the computer modules are connected to the LoRA modules, the conversion circuit modules are connected to the computer modules and terminal devices; a plurality of LoRA gateways, the LoRA gateways are connected to the LoRA modules; and a plurality of remote control platforms, the remote control platforms are connected to the LoRA gateways via the Internet. Compared with wireless transmission methods such as ZigBee, LoRa technology has low transmission power, longer transmission distance, more nodes allowed to be accessed, and is more suitable for remote dispatch management of vehicles.

Description

Technical Field

[0001] The present invention belongs to the field of wireless control, and in particular relates to a fleet management system based on LoRA technology. Background Art

[0002] The fleet management system needs to connect to many vehicles, and the distance between vehicles is large, so a wireless control system with a long control distance and the ability to connect to a large number of points is required. Summary of the invention

[0003] In response to the problems existing in the prior art, the present invention provides a fleet management system based on LoRA technology. Compared with wireless transmission methods such as ZigBee, some embodiments of the present invention have smaller transmission power and longer transmission distance, allow more nodes to be connected, and are more suitable for remote scheduling and management of vehicles.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A fleet management system based on LoRA technology, the fleet management system comprising: a plurality of vehicle-mounted terminals, the vehicle-mounted terminals being provided with a LoRA module, a computer module, a conversion circuit module and a terminal device for transmitting information to vehicle personnel, the LoRA module being wirelessly connected to an external device, the computer module being connected to the LoRA module, the conversion circuit module being connected to the computer module and the terminal device; a plurality of LoRA gateways, the LoRA gateways being connected to the LoRA modules; and a plurality of remote control platforms, the remote control platforms being connected to the LoRA gateways via the Internet.

[0006] Preferably, the conversion circuit module includes an audio processing circuit module, the terminal device includes a voice device, and the audio processing circuit module is connected between the voice device and the computer module.

[0007] Preferably, the conversion circuit module includes a video processing circuit module, the terminal device includes a vehicle-mounted display, and the video processing circuit module is connected between the vehicle-mounted display and the computer module.

[0008] Preferably, the computer module is a single chip microcomputer.

[0009] Preferably, the fleet management system includes: a plurality of network servers, the network servers are connected to the LoRA gateway via the Internet, and the remote control platform is connected to the network servers via the Internet.

[0010] Preferably, the single-chip microcomputer communicates with the LoRa module through a serial port, and the single-chip microcomputer receives a request from the remote control platform to obtain vehicle information instructions, vehicle dispatch information or voice data. If the single-chip microcomputer receives the request to obtain vehicle information instructions, the single-chip microcomputer feeds back the vehicle information to the remote control platform. If the single-chip microcomputer receives the vehicle dispatch information, the single-chip microcomputer sends the vehicle dispatch information to the video processing circuit module and the audio processing circuit module. If the single-chip microcomputer receives the voice data, the voice data is sent to the audio processing circuit module. After the video processing circuit module obtains the vehicle dispatch information, the vehicle dispatch information is updated in the vehicle display. After the audio processing circuit module obtains the vehicle dispatch information or voice data, the vehicle dispatch information or voice data is played to the vehicle personnel through the voice device.

[0011] Preferably, the on-board personnel can input voice signals through the voice device, the audio processing circuit module converts the voice signals into voice data and sends them to the single-chip microcomputer, and the single-chip microcomputer then transmits the voice data to the remote control platform through the LoRa module, the LoRA gateway and the network server in sequence.

[0012] Preferably, the execution logic of the single chip microcomputer includes the following steps:

[0013] Step 11: Initialize the microcontroller;

[0014] Step 12: Check whether there is vehicle dispatch information sent from the LoRa module. If yes, go to step 16; if not, go to step 13;

[0015] Step 13: Detect whether a request to obtain vehicle information is sent from the LoRa module. If yes, proceed to step 18; if no, proceed to step 14;

[0016] Step 14: Check whether there is voice data sent from the LoRa module. If yes, go to step 19; if not, go to step 15;

[0017] Step 15: Detect whether there is voice data sent from the audio processing circuit module, if yes, go to step 110, if no, return to step 12;

[0018] Step 16: Send the vehicle dispatch information to the video processing circuit module, and then go to step 17;

[0019] Step 17: Send the vehicle dispatch information to the audio processing circuit module, and then return to step 12;

[0020] Step 18: Send the vehicle information to the LoRa module, and then return to step 12;

[0021] Step 19: receiving voice data and sending the voice data to the audio processing circuit module, and then returning to step 12;

[0022] Step 110: Receive voice data and send the voice data to the LoRa module via serial port communication, and then return to step 12.

[0023] Preferably, the LoRa gateway and the LoRa module form a star network, each of the LoRa modules can send data to the LoRa gateway, the LoRa gateway can send data to each LoRa module, and the LoRa gateway and each of the LoRa modules interact with data through the LoRaWAN protocol; the LoRa gateway is connected to the Internet through an ETH interface, Wi-Fi or 3G / 4G cellular network, and the LoRa gateway directly exchanges data with the network server after being connected to the Internet; the LoRa gateway can upload the data sent by each of the LoRa modules to the network server for use by the remote control platform, and the LoRa gateway can extract the data sent by the remote control platform to the network server from the network server, and then send the data to each of the LoRa modules.

[0024] Preferably, the remote control platform exchanges data with the vehicle-mounted terminal by accessing the network server, including the following steps:

[0025] Step 21: Initialize the remote control platform;

[0026] Step 22: Detect whether the dispatcher issues a request to obtain vehicle information. If yes, send the request to obtain vehicle information to the network server, and then go to step 23; if no, go to step 24;

[0027] Step 23: Wait for 1 second, and check whether there is vehicle information returned by each user service system in the network server during the waiting time. If yes, receive the vehicle information and submit it to the dispatcher, and then go to step 24; if no, go to step 4 after the waiting time ends;

[0028] Step 24: Check whether there is voice data uploaded by the user service system in the network server. If yes, receive the voice data and submit it to the dispatcher; if no, proceed to step 25;

[0029] Step 25: Detect whether there is vehicle dispatch information of the dispatcher, if yes, send the vehicle dispatch information to the network server; if no, go to step 26;

[0030] Step 26: Detect whether there is voice data of the dispatcher, if yes, send the voice data to the network server; if no, return to step 22.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. Compared with wireless transmission methods such as ZigBee, LoRa technology has low transmission power and longer transmission distance, allowing more nodes to be connected, and is more suitable for remote scheduling and management of vehicles;

[0033] 2. LoRa technology is easier to access the Internet, facilitating the creation and use of remote control platforms;

[0034] 3. The voice transmission function has been added, so that the driver can communicate with the dispatcher through voice to achieve rapid communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] 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 some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 This is the schematic diagram of the vehicle-mounted user service system.

[0037] Figure 2 This is the network communication principle diagram of the fleet management system.

[0038] 1-on-board display; 2-video processing circuit module; 3-single-chip microcomputer; 4-LoRA module; 5-audio processing circuit module; 6-voice device; 7-LoRA gateway; 8-Internet; 9-network server; 10-remote control platform. DETAILED DESCRIPTION

[0039] 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.

[0040] In the description of the present invention, it is necessary to understand that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] The fleet management system based on LoRa technology is a system that uses LoRa technology to connect to the Internet to achieve remote dispatch management of the fleet. The system consists of a user service system, a LoRa module, a LoRa gateway and a remote control platform. The user service system is composed of a single-chip microcomputer, a video processing circuit module, an audio processing circuit module, a vehicle display and a voice device. The single-chip microcomputer of the user service system communicates with the LoRa module through the serial port, and the user service system and the LoRa module are both installed on the vehicle. The single-chip microcomputer of the user service system receives requests from the remote control platform through the serial port from the LoRa module to obtain vehicle information instructions or vehicle dispatch information. The driver can also communicate with the control platform through the voice device on the user service system. The LoRa module is responsible for sending the data transmitted from the serial port of the single-chip microcomputer to the LoRa gateway using the LoRaWAN protocol. The LoRa gateway is connected to the Internet through the ETH interface, Wi-Fi or 3G / 4G cellular network, and publishes the data to the network server. The remote control platform can exchange data with the user service system by accessing the network server.

[0042] like Figure 1-2 As shown, this embodiment provides a design method for a user service system, which is composed of a single-chip microcomputer, a video processing circuit module, an audio processing circuit module, a vehicle display and a voice device. The single-chip microcomputer communicates with the LoRa module through a serial port, and can receive a request to obtain vehicle information instructions, vehicle dispatch information or voice data sent from a remote control platform. If a request to obtain vehicle information instructions is received, the vehicle information is fed back to the remote control platform. If vehicle dispatch information is received, the vehicle dispatch information is sent to the video processing circuit module and the audio processing circuit module. If voice data is received, the voice data is sent to the audio processing circuit module; after the video processing circuit module obtains the vehicle dispatch information, it updates the information in the vehicle display; after the audio processing circuit module obtains the vehicle dispatch information or voice data, it plays the vehicle dispatch information or voice data to the driver through a voice device; the driver can also record a voice signal through a voice device, and the audio processing circuit module converts the voice signal into voice data, and then sends it to the single-chip microcomputer, and the single-chip microcomputer sends the voice data through the LoRa module. The specific steps of the single-chip microcomputer are as follows:

[0043] Step 1: Initialize the microcontroller;

[0044] Step 2: Check whether there is vehicle dispatch information sent from the LoRa module. If yes, go to step 6; if not, go to step 3;

[0045] Step 3: Check whether there is a request to obtain vehicle information command sent from the LoRa module. If yes, go to step 8; if not, go to step 4;

[0046] Step 4: Check whether there is voice data sent from the LoRa module. If yes, go to step 9; if not, go to step 5;

[0047] Step 5: Detect whether there is voice data sent from the audio processing circuit module, if yes, go to step 10, if not, return to step 2;

[0048] Step 6: Send the vehicle dispatch information to the video processing circuit module, and then go to step 7;

[0049] Step 7: Send the vehicle dispatch information to the audio processing circuit module, and then return to step 2.

[0050] Step 8: Send the vehicle information to the LoRa module, and then return to step 2;

[0051] Step 9: Receive voice data and send the voice data to the audio processing circuit module, and then return to step 2;

[0052] Step 10: Receive voice data and send it to the LoRa module through serial communication, then return to step 2.

[0053] The method of accessing the Internet through the LoRa gateway, the LoRa gateway and the LoRa module form a star network, each LoRa module can send data to the LoRa gateway, and the LoRa gateway can also send data to each LoRa module. The LoRa gateway and each LoRa module interact with data through the LoRaWAN protocol; the LoRa gateway is connected to the Internet through the ETH interface, Wi-Fi or 3G / 4G cellular network. After the LoRa gateway is connected to the Internet, it directly exchanges data with the network server; the LoRa gateway can upload the data sent by each LoRa module to the network server for use by the remote control platform, and can also extract the data sent to the network server by the remote control platform from the network server, and then send the data to each LoRa module.

[0054] A design method for a remote control platform, the remote control platform exchanges data with a user service system by accessing a network server, and the specific steps are as follows:

[0055] Step 1: Initialize the remote control platform;

[0056] Step 2: Detect whether the dispatcher issues a request to obtain vehicle information. If yes, send the request to obtain vehicle information to the network server, and then proceed to step 3; if no, proceed to step 4;

[0057] Step 3: Wait for 1 second, and check whether there is vehicle information returned by each user service system in the network server during the waiting time. If yes, receive the vehicle information and submit it to the dispatcher, and then go to step 4; if no, go to step 4 after the waiting time ends;

[0058] Step 4: Check whether there is voice data uploaded by the user service system in the network server. If yes, receive the voice data and submit it to the dispatcher; if no, proceed to step 5;

[0059] Step 5: Check whether there is vehicle dispatch information of the dispatcher. If yes, send the vehicle dispatch information to the network server; if no, go to step 6;

[0060] Step 6: Detect whether there is voice data of the dispatcher. If so, send the voice data to the network server; if not, return to step 2.

[0061] Although the above embodiments have been described in detail for the present invention, it should be understood by those skilled in the art that modifications or improvements may be made based on the contents disclosed in the present invention without departing from the spirit and scope of the present invention, and such modifications and improvements are within the spirit and scope of the present invention.

Claims

1. A fleet management system based on LoRA technology, characterized in that: The fleet management system comprises: A plurality of vehicle-mounted terminals, wherein the vehicle-mounted terminals are provided with a LoRA module, a computer module, a conversion circuit module and a terminal device for transmitting information to vehicle personnel, wherein the LoRA module is wirelessly connected to an external device, the computer module is connected to the LoRA module, the computer module is a single-chip microcomputer, the conversion circuit module is connected to the computer module and the terminal device, the conversion circuit module includes an audio processing circuit module, the terminal device includes a voice device, the audio processing circuit module is connected between the voice device and the computer module, the conversion circuit module includes a video processing circuit module, the terminal device includes a vehicle-mounted display, and the video processing circuit module is connected between the vehicle-mounted display and the computer module; A plurality of LoRA gateways, wherein the LoRA gateways are connected to the LoRA modules; and Several remote control platforms, wherein the remote control platforms are connected to the LoRA gateway via the Internet; Several network servers, wherein the network servers are connected to the LoRA gateway via the Internet, and the remote control platform is connected to the network servers via the Internet; The single-chip microcomputer communicates with the LoRA module through a serial port, and the single-chip microcomputer receives a request from the remote control platform to obtain vehicle information instructions, vehicle dispatch information or voice data. If the single-chip microcomputer receives the request to obtain vehicle information instructions, the single-chip microcomputer feeds back the vehicle information to the remote control platform. If the single-chip microcomputer receives the vehicle dispatch information, the single-chip microcomputer sends the vehicle dispatch information to the video processing circuit module and the audio processing circuit module. If the single-chip microcomputer receives the voice data, the voice data is sent to the audio processing circuit module; after the video processing circuit module obtains the vehicle dispatch information, the vehicle dispatch information is updated in the vehicle display; after the audio processing circuit module obtains the vehicle dispatch information or voice data, the vehicle dispatch information or voice data is played to the vehicle personnel through the voice device.

2. The fleet management system based on LoRA technology according to claim 1 is characterized in that: The vehicle personnel can input voice signals through the voice device, the audio processing circuit module converts the voice signals into voice data and sends them to the single-chip microcomputer, and the single-chip microcomputer then transmits the voice data to the remote control platform through the LoRA module, the LoRA gateway, and the network server in sequence.

3. The fleet management system based on LoRA technology according to claim 2 is characterized in that: The execution logic of the single chip microcomputer includes the following steps: Step 11: Initialize the microcontroller; Step 12: Check whether there is vehicle dispatch information sent from the LoRA module. If yes, go to step 16; if not, go to step 13; Step 13: Detect whether a request to obtain vehicle information is sent from the LoRA module. If yes, proceed to step 18; if no, proceed to step 14; Step 14: Check whether there is voice data sent from the LoRA module. If yes, go to step 19; if not, go to step 15; Step 15: Detect whether there is voice data sent from the audio processing circuit module, if yes, go to step 110, if no, return to step 12; Step 16: Send the vehicle dispatch information to the video processing circuit module, and then go to step 17; Step 17: Send the vehicle dispatch information to the audio processing circuit module, and then return to step 12; Step 18: Send the vehicle information to the LoRA module, and then return to step 12; Step 19: receiving voice data and sending the voice data to the audio processing circuit module, and then returning to step 12; Step 110: Receive voice data, and send the voice data to the LoRA module via serial port communication, and then return to step 12.

4. The fleet management system based on LoRA technology according to claim 3 is characterized in that: The LoRA gateway and the LoRA module form a star network, each of the LoRA modules can send data to the LoRA gateway, the LoRA gateway can send data to each LoRA module, and the LoRA gateway and each of the LoRA modules interact with data through the LoRAWAN protocol; the LoRA gateway is connected to the Internet through an ETH interface, Wi-Fi or 3G / 4G cellular network, and the LoRA gateway directly exchanges data with the network server after connecting to the Internet; the LoRA gateway can upload the data sent by each of the LoRA modules to the network server for use by the remote control platform, and the LoRA gateway can extract the data sent by the remote control platform to the network server from the network server, and then send the data to each of the LoRA modules.

5. The fleet management system based on LoRA technology according to claim 4 is characterized in that: The remote control platform communicates data with the vehicle-mounted terminal by accessing the network server, including the following steps: Step 21: Initialize the remote control platform; Step 22: Detect whether the dispatcher issues a request to obtain vehicle information instruction. If yes, send the request to obtain vehicle information instruction to the network server, and then proceed to step 23; If not, proceed to step 24; Step 23: Wait for 1 second, and check whether there is vehicle information returned by each user service system in the network server during the waiting time. If yes, receive the vehicle information and submit it to the dispatcher, and then go to step 24; If not, go to step 4 after the waiting time ends; Step 24: Check whether there is voice data uploaded by the user service system in the network server. If yes, receive the voice data and submit it to the dispatcher; if no, proceed to step 25; Step 25: Detect whether there is vehicle dispatch information of the dispatcher, if yes, send the vehicle dispatch information to the network server; if no, go to step 26; Step 26: Detect whether there is voice data of the dispatcher, if yes, send the voice data to the network server; if no, return to step 22.

Images