CN218162869U

CN218162869U - Digital display wireless RS485 data transmission device

Info

Publication number: CN218162869U
Application number: CN202222352915.1U
Authority: CN
Inventors: 徐红坤; 张达富
Original assignee: Yunnan Xiankong Technology Co Ltd
Current assignee: Yunnan Xiankong Technology Co Ltd
Priority date: 2022-09-05
Filing date: 2022-09-05
Publication date: 2022-12-27
Anticipated expiration: 2032-09-05

Abstract

The utility model discloses a wireless RS485 data transmission device of digital display belongs to the data transmission field, the wireless RS485 data transmission device of digital display include host system, 485 communication module, digital display module, wireless communication module, power module, data acquisition module, 485 communication module with be connected with data acquisition module, the data acquisition module output is connected with host system, host system data output end is connected with wireless communication module, host system is connected with digital display module, power module provides electric power for above-mentioned each module. The utility model discloses can reduce laying of communication line to can improve communication efficiency, reduce because the communication that the trouble of communication line itself arouses blocks.

Description

Digital display wireless RS485 data transmission device

Technical Field

The utility model belongs to the communication field, more specifically the utility model relates to a digital display wireless RS485 data transmission device that says so.

Background

When monitoring various environment, can connect a plurality of sensors usually, for more comprehensive control, need be in each corner or even each installation environmental sensor, the environmental sensor who uses at present stage all is digital interface, mostly is the RS485 interface. Various devices typically have an RS485 communication interface.

According to the characteristics of the RS485 bus, only a plurality of same-kind devices can be connected to the bus, and specific devices can be distinguished through different communication addresses. When various devices and digital sensors are connected to a monitoring host through an RS485 serial bus, a plurality of RS485 buses are needed, especially, communication transmission lines of devices transformed in the later period are very responsible, wiring is added on the basis, construction is quite complex, a large number of wires are consumed, and engineering cost is high.

Disclosure of Invention

The utility model discloses with the sensor data that RS485 bus was gathered, mode through wireless transmission with data transmission to backstage control computer lab, saved communication wiring space, also for the old difficult equipment that carries out the wiring of part provides solution, can improve equipment transformation efficiency, reduce and reform transform the cost.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the digital display wireless RS485 data transmission device comprises a main control module 1, a 485 communication module 2, a digital display module 3, a wireless communication module 4, a power supply module 5 and a data acquisition module 6, wherein the 485 communication module 2 is connected with the data acquisition module 6, the output end of the data acquisition module 6 is connected with the main control module 1, the data output end of the main control module 1 is connected with the wireless communication module 4, the main control module 1 is connected with the digital display module 3, and the power supply module 5 provides electric power for the modules.

Preferably, the device further comprises a storage module 7, the storage module 7 is connected with the main control module 1 and is used for storing data processed on the main control module 1, and the main control module 1 adopts an SMT32 series single chip microcomputer.

Preferably, the digital display module 3 adopts an LED touch display screen, and the power module 5 adopts a power supply module combining dry battery power supply and solar power supply.

Preferably, the wireless communication module 4 is a lora wireless communication module 4.

The utility model discloses beneficial effect:

Drawings

FIG. 1 is a block diagram of the system of the present invention;

FIG. 2 is a circuit diagram of the main control module of the present invention;

fig. 3 is a circuit diagram of the power module of the present invention.

In the figure, the device comprises a main control module 1, a communication module 2-485, a digital display module 3, a wireless communication module 4, a power supply module 5, a data acquisition module 6 and a storage module 7.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1-3, the digital display wireless RS485 data transmission device includes a main control module 1, a 485 communication module 2, a digital display module 3, a wireless communication module 4, a power supply module 5, and a data acquisition module 6, the 485 communication module 2 is connected with the data acquisition module 6, an output end of the data acquisition module 6 is connected with the main control module 1, a data output end of the main control module 1 is connected with the wireless communication module 4, the main control module 1 is connected with the digital display module 3, and the power supply module 5 provides power for each of the above modules. The main control module 1 adopts an SMT32 series single chip microcomputer. Digital display module 3 adopt LED touch display screen, power module 5 adopt the power module that dry battery power supply and solar energy power supply combined together. The power module 5 mainly comprises pressure-sensitive thermal protection, filtering, rectification, a switching power supply, RS485 power supply, wireless module power supply, MCU power supply and the like.

A full-speed USB (OTG) interface is added to a brand-new STM32 interconnection type (Connectivity) series microcontroller, so that a terminal product can serve as a USB host and a USB slave when being connected with another USB device; an Ethernet interface with hardware supporting IEEE1588 Precision Time Protocol (PTP) is also added, the protocol is realized by hardware, the CPU overhead can be reduced, and the response speed of real-time application and synchronous communication of networking equipment is improved.

A brand new interconnection type series is also a product integrating two CAN2.0B controllers in the first version of an STM32 family, so that developers CAN develop gateway equipment capable of being connected with two industrial standard CAN (controller area network) buses. In addition, the new series of microcontrollers also support the simultaneous operation of Ethernet, USB OTG and CAN2.0B peripheral interfaces, so that developers can design gateway equipment integrating all the peripheral interfaces by only one chip.

The LED touch display screen can display the number of the current online devices, the electric quantity of the device and the data transmission condition, and can set parameters of the device through the touch screen. The wireless communication module 4 adopts a lora wireless communication module 4. The LoRaWAN open specification is a Low Power Wide Area Network (LPWAN) standard based on Semtech LoRa equipment, utilizing unlicensed radio spectrum in the industrial, scientific, and medical (ISM) band. The standardization and global coordination of the LoRaWAN standard is driven by LoRa Alliance (a non-profit association and rapidly evolving technical consortium). The LoRaWAN standard provides an efficient, flexible, and economical solution to practical problems in rural and indoor use cases where cellular, wi-Fi, and Bluetooth Low Energy (BLE) networks are not effective.

The device also comprises a storage module 7, wherein the storage module 7 is connected with the main control module 1 and used for storing the data processed on the main control module 1, under the normal working condition of the device, the collected data are transmitted to the background monitoring equipment for storage, but when the background monitoring equipment is disconnected and other special conditions are met, the data collected by the device need to be sent to the storage module 7 for storage, so that the related monitoring data can be checked in the later period.

The utility model discloses the theory of operation: sensor equipment who carries on the RS485 bus passes through the RS485 bus with data transmission to 485 communication module 2 on, 485 communication module 2 with data transmission to data acquisition module 6 carry out the collection and the sampling back of data, with data transmission to host system 1, host system 1 handles the back to data, with data transmission to through wireless communication module 4 with data transmission to rear end monitoring host computer, and host system 1 still can be with data transmission to storage module 7 and save, so that subsequent inspection. When the device works, the main control module 1 transmits the working parameters of the device to the digital display module 3 for display, and the display content comprises information such as electric quantity and the number of current online devices.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a digital display wireless RS485 data transmission device which characterized in that: the digital display wireless RS485 data transmission device comprises a main control module (1), a 485 communication module (2), a digital display module (3), a wireless communication module (4), a power supply module (5) and a data acquisition module (6), wherein the 485 communication module (2) is connected with the data acquisition module (6), the output end of the data acquisition module (6) is connected with the main control module (1), the data output end of the main control module (1) is connected with the wireless communication module (4), the main control module (1) is connected with the digital display module (3), and the power supply module (5) provides electric power for the modules.

2. The device for transmitting digital display wireless RS485 data according to claim 1, wherein: the device also comprises a storage module (7), wherein the storage module (7) is connected with the main control module (1) and used for storing the data processed on the main control module (1), and the main control module (1) adopts an SMT32 series single chip microcomputer.

3. The digital display wireless RS485 data transmission device according to claim 1, wherein: the digital display module (3) adopts an LED touch display screen, and the power supply module (5) adopts a power supply module combining dry battery power supply and solar power supply.

4. The digital display wireless RS485 data transmission device according to claim 1, wherein: the wireless communication module (4) adopts a lora wireless communication module.