CN111683003A

CN111683003A - Internet of things gateway equipment with GPS positioning and multiple communication networking modes

Info

Publication number: CN111683003A
Application number: CN202010575014.1A
Authority: CN
Inventors: 么士举; 杨路; 刘军田
Original assignee: Shanghai Jujun Technology Co ltd
Current assignee: Shanghai Jujun Technology Co ltd
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-09-18
Anticipated expiration: 2040-06-22
Also published as: CN111683003B

Abstract

The invention provides an Internet of things gateway device with GPS positioning and multiple communication networking modes, which comprises a computing unit module, a storage module, an indicator light module, a power supply module, a local communication module, a remote communication module and a GPS positioning module, wherein the computing unit module is used for storing a plurality of information of the Internet of things gateway device; the power supply module is used for supplying power to all modules of the gateway equipment; the indicator light module is used for giving different signals of the working state of the gateway; the storage module carries out upgrading processing on equipment firmware through information transmitted by the local communication module and/or the remote communication module; the GPS positioning module transmits the positioning data acquired by the remote communication module to the computing unit module; one port of the computing unit module is used for data acquisition and information interaction with a plurality of groups of external equipment or external terminals through the local communication module. By adopting the equipment, the human intervention factors of field operating personnel can be effectively eliminated, the real equipment position and working state information can be obtained in real time, and the risk management work of financial institution wind control personnel can be effectively carried out conveniently.

Description

Internet of things gateway equipment with GPS positioning and multiple communication networking modes

Technical Field

The invention belongs to the field of gateway equipment applied to financial service businesses such as supply chain finance, financing lease and the like, and particularly relates to Internet of things gateway equipment with GPS positioning and multiple communication networking modes.

Background

At present, industrial internet technology is developed vigorously, and from the industrial development perspective, the generation of information isolated islands has certain necessity. From the analysis of the self-reason of the enterprise, most of the early-stage information construction lacks long-term and overall planning, and various local requirements are only considered in different stages, so that blind introduction of various different application systems is caused. Due to the fact that technology and data standards are not unified among most application systems, data cannot be automatically transferred, and effective association and sharing are lacked, so that information islands which are isolated from each other are formed.

The defects brought by the existence of the information isolated island are obvious, and the following defects are common defects, namely multi-port acquisition, repeated input, multi-head use and maintenance of information are caused, the synchronism of information updating is poor, so that the consistency and the correctness of data are influenced, the information resources of enterprises are disorderly and dispersedly disassembled and redundant in a large quantity, the information use and management efficiency is low, and the uniform and accurate basis is lost. Secondly, due to lack of business function interaction and information sharing, logistics, fund flow and information flow of enterprises are disjointed, account and account are inconsistent as a result, accurate financial accounting is difficult to perform, effective monitoring on business processes and business standards is difficult to implement, problems in the management and management process cannot be found timely, phenomena of plan out of control, excessive inventory, dark box operation in purchasing and selling links and the like are caused, and serious consequences such as ineffective labor, resource waste, benefit loss and the like are brought to the enterprises. And secondly, an isolated information system cannot effectively provide comprehensive information of cross-department and cross-system, various data cannot form valuable information, and local information cannot be promoted to management knowledge, so that decision support for enterprises can only flow in air talk.

In addition, the existence of enterprise information isolated islands also influences the clustering and industrial application of informatization. Therefore, more and more new services now require networked reconstruction of devices and apparatuses of the original "information isolated island", and how to solve the information isolated island by implementing a new working mode of remote access and control of the devices through the internet.

Disclosure of Invention

In order to solve the technical problems, the equipment provided by the invention connects the field equipment and the sensor through various wireless and wired communication paths from the service requirements, autonomously and controllably realizes multiple functions of data acquisition, fault diagnosis, data forwarding and the like, and helps a user to quickly complete the networking work of industrial equipment. The technical scheme is as follows: an Internet of things gateway device with GPS positioning and multiple communication networking modes comprises a computing unit module, a storage module, an indicator light module, a power supply module, a local communication module, a remote communication module and a GPS positioning module; the power supply module is used for supplying power to all modules of the gateway equipment; the indicating lamp module consists of a plurality of groups of LEDs and is used for giving different signals of the working state of the gateway; the storage module carries out upgrading processing and storage processing on equipment firmware through information transmitted by the local communication module and/or the remote communication module; the GPS positioning module transmits positioning data acquired by the remote communication module to the computing unit module; one port of the computing unit module is used for data acquisition and information interaction with multiple groups of external equipment or external terminals through the local communication module.

The cloud computing platform is used for carrying out information interaction with the computing unit module through the remote communication module, and the information interaction transmission adopts an RSA encryption communication mode for transmission.

As a refinement, the data includes, but is not limited to, the following: the system comprises a gateway module, a data acquisition module and a data acquisition module, wherein the working state data of the gateway module, the acquired external equipment signal data and the GPS information data of the geographic position of the gateway are acquired; the instructions include, but are not limited to, the following: setting a network parameter instruction, an external device data acquisition frequency instruction and a data uploading frequency instruction of a local communication module, setting a gateway clock instruction, acquiring gateway attributes, storing the gateway parameters to a storage module, restoring the gateway parameters to factory settings, restarting the gateway instruction and updating the remote firmware program instruction.

As an improvement, the local communication module comprises a wired network communication module and a wireless network communication module; one port of the wired network communication module is used for carrying out data acquisition and information interaction with a plurality of groups of external equipment or external terminals, and the other port of the wired network communication module is used for carrying out information interaction with the computing unit module.

As an improvement, the wireless network module comprises an Lora communication module and a BLE Bluetooth communication module, the Lora communication module carries out information interaction processing between external equipment and the cloud computing platform through a remote communication module, and the BLE Bluetooth communication module carries out data interaction processing with the computing unit module through a serial communication interface and/or a general purpose input and output GPIO mode.

As an improvement, the Lora communication module is connected through a plurality of groups of sensor adaptive networking and is used for information interaction between the calculation unit module and data of sensor measurement signals, two multiplexing modes of FDMA and CDMA are adopted, the communication distance is 400-750m, radio frequency communication is carried out in a 300-550Mhz frequency band, and the bandwidth is 2.0-3.5 kHZ.

The storage module comprises a BOOTLOADER guide area, an active firmware storage area, an equipment configuration parameter storage area and an OTA firmware cache area, and the four areas are used for information interaction through the computing unit module and switching the working mode from the OTA mode to the working mode.

As an improvement, the switching method of the working mode-OTA mode-working mode comprises the following steps: the cloud computing platform or the user client sends out an OTA task, the working mode enters the OTA mode, specifically, the received firmware is stored in an OTA firmware cache region, the integrity of the firmware is verified according to the check word, and a new firmware mark is set in an equipment configuration parameter region; and then, the reset calculation unit module recognizes that the firmware marking position is set through the boot area to guide and read the device configuration parameter area, writes the data in the OTA firmware cache area into an active firmware storage area, resets a new firmware mark, and finally loads the firmware normally to complete the recovery of the OTA mode into the working mode.

Has the advantages that: the invention provides an Internet of things gateway device with GPS positioning and multiple communication networking modes, on one hand, an interactive function between a gateway and a mobile phone APP is provided through a BLE communication module in the gateway; on the other hand, through remote communication module and GPS location module, provided these two kinds of functions of gateway location function and cell-phone APP and combine, constitute the core function in this scheme, the guarantee is to the validity of being managed external device and field device operation personnel remote management. The function can effectively eliminate the human intervention factors of field operation personnel, obtain real equipment position and working state information in real time, and is convenient for the financial institution wind control personnel to effectively develop the risk management work.

Drawings

Fig. 1 is a schematic view of a topology structure of an internet of things gateway device of the present invention.

The figures of the present invention are further described below in conjunction with the embodiments.

The calculation unit module 101: the STM32F407 MCU is used as a core, an embedded real-time operating system and a firmware program are adopted to control the working modes of other modules, and the functions of GPS information acquisition and field external equipment networking and communication are realized.

Wired network communication module 105-1: the network is controlled by the computing unit module 101, forms a network with a bus-type topology structure with a plurality of groups of external devices such as 1, 2 and 3, realizes the function of automatically acquiring data, and uploads the data to the cloud computing platform through the remote communication module 106. The acquisition modes comprise fixed period acquisition and unfixed period acquisition, and a firmware program in the gateway performs data acquisition and forwarding work according to parameters defined by a user.

The storage module 102 is used for providing storage functions of equipment operation parameters and external input data, and is divided into three blocks, namely 1, storage operation parameters; 2. storing external device data; 3. and storing the OTA cache new-version firmware file.

The gateway has OTA remote upgrade function. The firmware of the device is upgraded through the remote communication module 106 or the BLE module 105-2-2. The firmware program realizes the error-free reception of the new firmware file, the new firmware file is stored in the storage module 102, the computing unit is switched into a boot program control mode after the firmware execution software is reset, the new firmware file in the storage module is read and written into the storage space in the computing unit, and then the new firmware is loaded.

The indicator light module 103: a plurality of LEDs are provided and the firmware program indicates the current operating status of the gateway by causing the LEDs to flash in different colors or at different frequencies. The field user knows the working state of the equipment and the network according to the state of the indicator light

Wireless module 105-2-1: and supporting a Lora air interface protocol, loading a Lora protocol stack according to parameters defined by a user after the gateway is powered on and started, and networking with the external equipment 4. After networking, there are two modes of operation: 1. after receiving an acquisition instruction issued by the cloud computing platform, the gateway wakes up the external device 4, executes a data exchange task, and forms acquired data into a message to be sent to the cloud computing platform through the remote communication module; 2. the gateway wakes up the external device 4 at regular time intervals to perform data acquisition tasks.

BLE communication module 105-2-2: the method has the advantages that data interaction with the mobile phone is realized, the BLE communication link can be established between the mobile phone and the gateway, and a user can acquire the operating parameters of the gateway and modify the operating parameters of the gateway through the mobile phone. The BLE module 105-2-2 performs data interaction with the computing unit 101 through a serial communication interface.

The remote communication module 106: bidirectional data exchange between the gateway and the cloud computing platform is realized through the remote communication module 106, the remote communication module uses the LTE mobile communication technology, instruction and data transmission are carried out between the remote communication module and the computing module 101 through a serial interface, and all equipment operation parameters can be remotely set through the Internet.

GPS positioning module 107: the gateway firmware regularly acquires the positioning data of the GPS positioning module, and reports the information of other current positions to the cloud computing platform through the remote communication module 106.

The gateway utilizes a positioning technology and a field wired networking technology or a wireless networking technology to realize data acquisition and capture of original field non-networking equipment. The method is very suitable for the field device monitoring scene with the simultaneous geographic positioning requirement and networking condition.

The gateway of the invention has three operation modes:

an initialization mode:

after the gateway is powered on, the power module 104 provides electric energy for other modules, and the computing unit module 101 loads firmware to execute a start task after being powered on:

1. detecting the initial state of hardware of the storage module 102, the local communication module 105, the remote communication module 106 and the GPS positioning module 107;

2. loading parameters to initialize the operation parameters of the local communication module 105, the remote communication module 106 and the GPS positioning module 107;

3. and starting a remote communication program, a wired communication program, a positioning communication program, a BLE communication program, a Lora communication program and an OTA task program according to a specified sequence, and enabling the gateway to enter a working state.

(II) working mode:

the gateway adopts a multi-task real-time operating system and simultaneously runs a remote communication program, a wired communication program, a positioning communication program, a BLE communication program and an OTA task program. And data and instruction interaction is realized among all tasks through a message queue provided by an operating system.

1. Remote communication program

The computing unit module 101 is connected to the cloud computing platform through the remote communication module 106, and the data transmission adopts an RSA encryption communication mode. The remote communication module 106 and the cloud computing platform use x509 identity authentication and DH key exchange technology to realize communication handshake, and after connection is established, the two parties report data and issue instructions according to parameters specified by service.

The instructions include:

setting network parameters, external equipment data acquisition frequency and data uploading frequency of the local communication module 105.

And setting a gateway clock.

And thirdly, acquiring gateway attributes (name, version information and the like), storing gateway parameters to the storage module 102, and restoring the gateway parameters to factory settings.

And fourthly, restarting the gateway.

OTA (remote firmware program upgrade).

The data includes:

operating states of all modules of the gateway.

And secondly, acquiring signal data of the external equipment.

And thirdly, geographical location information (GPS) of the gateway.

2. Wired communication program

The computing unit module 101 reads the data acquisition configuration information stored in the storage module 102, controls the local communication module 105-1 to search for the external device, establishes a data link according to the configuration information, and acquires the data of the external device according to the parameter setting frequency. The program is responsible for verifying the integrity and authenticity of the data of the external device and then sending the data to the remote communication program.

3. Positioning communication program

The calculation unit module 101 reads the geographical coordinates and the time stamp in the GPS positioning module 107 at regular time, and performs auxiliary positioning according to the base station information of the remote communication module 106 after the GPS signal is abnormal, thereby improving the stability of the positioning service. The computing unit module 101 obtains the clock and coordinate information, removes outlier data points through data filtering algorithm processing, and packages and submits the data to the remote communication process.

4. BLE communication program

The calculation unit module 101 and the BLE module 105-2-2 are in normal bidirectional data communication through a serial interface, and the calculation unit module is further connected to an interrupt interface of the BLE module through a GPIO (general purpose input/output), and an interrupt signal triggers a program to process a communication task on the BLE module. After installing gateway control APP on the user's cell-phone, through establishing the bluetooth with the BLE module and being connected, the BLE module produces interrupt signal, and the calculation unit module gets into the active state, makes the instruction and accepts the preparation, and APP gives an instruction, and calculation unit module receives and analyzes the instruction, carries out the operation of response, then sends the result for the BLE module, and the BLE module is again with data transmission for cell-phone APP. The APP can acquire gateway operation information through the mechanisms: the execution state of each task, data acquisition information and running log information can modify the acquisition configuration information of the external equipment.

5. Lora communication module 105-2-1

And the computing unit module 101 controls and bears the field wireless networking function. The Lora narrowband communication has the characteristics of low power consumption and long distance, two multiplexing modes of FDMA and CDMA are adopted, the communication distance is 400-750m, the 300-550Mhz frequency band radio frequency communication is adopted, and the bandwidth is 2.0-3.5 kHZ. As a specific embodiment of the invention, 433Mhz frequency band radio frequency communication can be used, the bandwidth is 2.5kHZ, and the typical communication distance is 500 meters. The system is used in networking with a sensor (terminal for short) compatible with a Lora module on site, and is suitable for collecting low-speed change signals of temperature, humidity, weight, electric energy measurement and the like, a calculation module unit 101 is provided with a Lora wireless communication module 105-2-1 to monitor a terminal network access request, after authentication is passed, a terminal reporting interval is set according to a scheduling algorithm, after the terminal reports data, a receiving time window is opened, and a gateway can send a downlink instruction to the terminal through the time window to realize bidirectional communication between the terminal and the terminal.

(III) OTA mode

Four types of regions are divided within the memory module 102: 1. a bootload leader region; 2. an active firmware storage area; 3. a device configuration parameter storage area; 4. and an OTA firmware cache region.

The OTA communication program is used as a background service program to wait for a cloud platform or a user APP to initiate an OTA task, the OTA communication program is switched from a working mode to the OTA mode, firstly, received firmware is stored in an OTA firmware cache region, then the integrity of the firmware is verified according to check words, a new firmware mark is set in an equipment configuration parameter region, then a computing unit module 101 is reset, a boot program is started, the boot program reads the equipment configuration parameter region, a firmware mark position is identified to be set, then data in the OTA firmware cache region is burnt into an active firmware storage region, the new firmware mark is reset, and finally, the firmware is normally loaded and restored to the working mode.

The cloud computing platform is used for data reporting and/or instruction issuing, information interaction is carried out between the cloud computing platform and the computing unit module 101 through the remote communication module 106, and information interaction transmission is carried out in an RSA encryption communication mode.

The specific method of the present invention is further illustrated by the following example.

Example 1:

the specific implementation mode of the invention is as follows: 1. networking with managed external equipment through the local communication module 105, autonomously acquiring data and acquiring the working state of the equipment; 2. the gateway positioning function is provided through the remote communication module 106 and the GPS positioning module 107 to obtain the equipment position information; 3. the identity of an authorized operator is verified through a mobile phone APP, and position information of the authorized operator is obtained; 4. and the working state of the equipment, the position information of the operating personnel verified by the APP and the interaction information of the BLE communication module 105-2-2 and the BLE of the mobile phone in the gateway are verified in a combined manner. By adopting the complaint mode, the authorized field operation personnel can be effectively proved to use the managed equipment to carry out effective field operation at the authorized time and place.

The function is particularly suitable for the financial service business fields of supply chain finance, financing lease and the like. The method has the advantages that the corresponding equipment in the links of commodity production, processing, distribution and the like is subjected to Internet of things unified management, the human intervention factors of field operation personnel can be eliminated by means of the positioning and Bluetooth interaction functions of the gateway, effective corresponding management relation between the gateway and the managed equipment and devices is realized through the interaction between the mobile phone and the gateway Bluetooth and the gateway position information acquired in real time, and the subsequent risk management work of financial supervision personnel can be effectively carried out conveniently. For a better illustration of the invention, the following is an explanation of the terms involved in the invention:

1. gateway of internet of things

The gateway of the Internet of things realizes protocol conversion between the sensing network and the communication network and between different types of sensing networks, thereby not only realizing wide area interconnection, but also realizing local area interconnection. In addition, the system also has the function of equipment management, and a user can manage all sensing nodes at the bottom layer through the gateway equipment, know the related information of all the sensing nodes and realize remote control.

2、LTE

LTE (Long Term Evolution ) is a mobile wireless data communication technology standard, a network standard. It is an evolution of 3G, a transition between 3G and 4G technologies, and a global standard for 3.9G. The LTE technology mainly has two main modes, TDD and FDD, and the two modes have respective characteristics.

2、GPS

GPS is an abbreviation of Global Positioning System (GPS). The GPS positioning satellite is utilized to perform positioning and navigation in real time in the global range.

3、LoRa

Lora is short for Long Range Radio in english. The wireless radio frequency communication device can be further extended in distance under the same power consumption condition than other wireless modes, the unification of low power consumption and long distance is realized, and the wireless radio frequency communication device is extended by 3-5 times in distance under the same power consumption condition than the traditional wireless radio frequency communication device.

4、BLE

Bluetooth Low Energy (Bluetooth Low Energy), also known as Bluetooth Low Energy, is a personal area network technology designed and sold by the Bluetooth special interest group. Bluetooth low energy uses the same 2.4GHz radio frequency as classic bluetooth.

5、MCU

The MCU is an english Microcontroller Unit (microcontrol Unit), which properly reduces the specification of a Central Processing Unit (CPU), and integrates peripheral interfaces such as a memory, a counter, a USB, an a/D converter, a UART, a PLC, a DMA, and the like into a single chip to form a chip-level computer, thereby performing different combination control for different applications.

6、OTA

OTA is an abbreviation for the english Over-the-Air Technology (space download Technology). OTA is a technology for remote management of SIM card data and applications over the air interface of mobile communications.

7、LED

An LED is a short for a Light Emitting Diode (LED), and is made of a compound containing gallium (Ga), arsenic (As), phosphorus (P), nitrogen (N), and the like. The light-emitting diode can emit light by energy released by the recombination of electrons and holes, and can efficiently convert electric energy into light energy.

8. Serial interface

The serial interface is a serial port for short, and is an expansion interface adopting a serial communication mode. Serial interface (serial interface) refers to the sequential transfer of data bit by bit. The bidirectional communication device is characterized in that the communication line is simple, bidirectional communication can be realized only by one pair of transmission lines, the bidirectional communication device is particularly suitable for remote communication, and the transmission speed is low.

9. Firmware

Firmware (firmware) is typically stored in an electrically erasable read-only memory eeprom (electrically erasable Programmable rom) or FLASH chip in the device, and is typically a program that can be upgraded by the user by a specific refresh procedure.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a thing networking gateway equipment with GPS location and many communication network deployment modes which characterized in that: the device comprises a computing unit module (101), a storage module (102), an indicator light module (103), a power supply module (104), a local communication module (105), a remote communication module (106) and a GPS positioning module (107); the power supply module (104) is used for supplying power to all modules of the gateway equipment; the indicator light module (103) consists of a plurality of groups of LEDs and is used for giving different signals of the working state of the gateway; the storage module (102) performs upgrading processing and storage processing on equipment firmware through information transmitted by the local communication module (105) and/or the remote communication module (106); the GPS positioning module (107) transmits the positioning data acquired by the remote communication module (106) to the computing unit module (101); and one port of the computing unit module (101) is used for carrying out data acquisition and information interaction with a plurality of groups of external equipment or external terminals through the local communication module (105).

2. The gateway device of the internet of things with GPS positioning and multiple communication networking modes of claim 1, wherein: the cloud computing platform is used for data reporting and/or instruction issuing, information interaction is carried out between the cloud computing platform and the computing unit module (101) through the remote communication module (106), and information interaction transmission is carried out in an RSA encryption communication mode.

3. The gateway device of the internet of things with GPS positioning and multiple communication networking modes of claim 2, wherein: the data includes, but is not limited to, the following: the system comprises a gateway module, a data acquisition module and a data acquisition module, wherein the working state data of the gateway module, the acquired external equipment signal data and the GPS information data of the geographic position of the gateway are acquired; the instructions include, but are not limited to, the following: setting a local communication module (105) network parameter instruction, an external device data acquisition frequency instruction, a data uploading frequency instruction, setting a gateway clock instruction, acquiring gateway attributes, storing the gateway parameters to a storage module (102), restoring the gateway parameters to factory settings, restarting the gateway instructions, and updating the remote firmware program instructions.

4. The gateway device of the internet of things with GPS positioning and multiple communication networking modes of claim 1, wherein: the local communication module (105) comprises a wired network communication module (105-1) and a wireless network communication module (105-2); one port of the wired network communication module (105-1) is used for data acquisition and information interaction with multiple groups of external equipment or external terminals, and the other port is used for information interaction with the computing unit module (101).

5. The gateway device of the internet of things with GPS positioning and multiple communication networking modes of claim 4, wherein: the wireless network module (105-2) comprises a Lora communication module (105-2-1) and a BLE Bluetooth communication module (105-2-2), the Lora communication module (105-2-1) carries out information interaction processing between external equipment and a cloud computing platform through a remote communication module (106), and the BLE Bluetooth communication module (105-2-2) carries out data interaction processing with the computing unit module (101) through a serial communication interface and/or a general purpose input and output GPIO mode.

6. The gateway device of the internet of things with GPS positioning and multiple communication networking modes of claim 5, wherein: the Lora communication module (105-2-1) is connected through a plurality of groups of sensor adaptive networking and used for information interaction between the calculation unit module (101) and data of sensor measurement signals, two multiplexing modes of FDMA and CDMA are adopted, the communication distance is 400-750m, radio frequency communication is carried out in a 300-550Mhz frequency band, and the bandwidth is 2.0-3.5 kHZ.

7. The gateway device of the internet of things with GPS positioning and multiple communication networking modes of claim 1, wherein: the storage module (102) comprises a BOOTLOADER guide area, an active firmware storage area, an equipment configuration parameter storage area and an OTA firmware cache area, and information interaction is carried out among the four areas through the computing unit module (101) and is used for switching the working mode from the OTA mode to the working mode.

8. The gateway device of the internet of things with GPS positioning and multiple communication networking modes of claim 7, wherein: the switching method of the working mode-OTA mode-working mode comprises the following steps: the cloud computing platform or the user client sends out an OTA task, the working mode enters the OTA mode, specifically, the received firmware is stored in an OTA firmware cache region, the integrity of the firmware is verified according to the check word, and a new firmware mark is set in an equipment configuration parameter region; then, the computing unit resetting module (101) recognizes that the firmware marking position is set through the equipment configuration parameter area guided and read by the guide area, writes the data in the OTA firmware cache area to the active firmware storage area, resets the new firmware mark, and finally loads the firmware normally to complete the recovery of the OTA mode to the working mode.