CN213780717U - Remote OTA upgrading program module - Google Patents

Abstract

The utility model relates to a long-range OTA upgrading program module, including DCDC supply circuit, SIM card communication circuit, BC23M module, MCU control chip, 485 communication circuit, memory circuit and antenna circuit, the SIM cassette is connected with BC23M module through corresponding pin, BC23M module is connected with MCU control chip and antenna circuit through corresponding pin, MCU control chip is connected with memory circuit through corresponding pin, 485 communication circuit is connected with MCU control chip through corresponding pin, still be equipped with the terminal seat on the 485 communication circuit, DCDC supply circuit provides the power for whole module, the utility model discloses a long-range upgrading of procedure, after-sale service staff just need not go the upgrading procedure to the scene, thereby saved corporate personnel and fund, time, experienced the sense for the better use of user.

Description

Remote OTA upgrading program module

Technical Field

The utility model belongs to the technical field of the remote control technique and specifically relates to a long-range OTA upgrading program module is related to.

Background

The refrigeration and heating ventilation equipment sold in the current market is in a condition of BUG in long-term operation or crash in operation, and needs to return to a factory for upgrading the program again or needs to run after-sales personnel to a field for upgrading the program; therefore, the user experience is not good and troublesome, the brand influence of manufacturers is reduced, and more after-sales service personnel and after-sales funds are needed; the internet of things is used as an extension of the internet, is called as the third wave of the world information industry, is one of strategic emerging industries of the national key development, and how to utilize the internet of things remote communication technology to perform remote program upgrading on the existing refrigeration, heating and ventilation equipment and unit equipment becomes a difficult problem which needs to be solved urgently by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model aims to provide a long-range OTA upgrading procedure module, this module can change personnel to the current situation of field upgrade product, has improved efficiency, the cost is reduced.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:

a remote OTA upgrading program module comprises a DCDC power supply circuit, a SIM card communication circuit, a BC23M module, an MCU control chip, a 485 communication circuit, a storage circuit and an antenna circuit, wherein the SIM card seat is connected with the BC23M module through corresponding pins, the BC23M module is connected with the MCU control chip and the antenna circuit through corresponding pins, the MCU control chip is connected with the storage circuit through corresponding pins, the 485 communication circuit is connected with the MCU control chip through corresponding pins, a terminal seat is further arranged on the 485 communication circuit, the DCDC power supply circuit provides power for the whole module, the BC23M module downloads program data through the SIM card and the antenna circuit which are installed on the SIM card seat and sends the program data to the MCU control chip, the MCU control chip sends the received program data to the storage circuit, and meanwhile, the MCU control chip is verified in communication with external unit equipment through the 485 communication circuit, and according to the verification result, the MCU control chip selects whether to extract program data from the storage circuit or not and sends the program data to external unit equipment through the 485 communication circuit.

Preferably, the BC23M module is further connected with a network indicator light circuit through a corresponding pin.

Preferably, the antenna circuit comprises an antenna pedestal, and the antenna pedestal is provided with an external antenna.

Preferably, the MCU control chip adopts an STM32F030C8T6 chip, the power supply chip of the DCDC power supply circuit adopts an XL2596 chip, and the chip of the 485 communication circuit adopts an SP3485 chip.

Preferably, the memory circuit adopts a W25Q32flash memory chip, and the terminal block is a 4PIN5.08 green terminal block.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an adopt MCU control chip and SIM card communication circuit, BC23M module, 485 communication circuit, memory circuit, antenna circuit's communication cooperation, realized the long-range upgrading of procedure, the after-sales service staff just need not go the upgrading procedure to the scene to saved company's personnel and fund, time, experienced the sense for the better use of user.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

Fig. 1 is a 485 communication circuit diagram of the present invention;

fig. 2 is a circuit diagram of the BC23M module of the present invention;

fig. 3 is a circuit diagram of the DCDC power supply of the present invention;

FIG. 4 is a circuit diagram of the MCU control chip of the present invention;

fig. 5 is a communication circuit diagram of the SIM card of the present invention;

fig. 6 is an antenna circuit diagram of the present invention;

fig. 7 is a memory circuit diagram of the present invention;

fig. 8 is the network indicating lamp circuit of the present invention.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, elements, and/or combinations thereof, unless the context clearly indicates otherwise.

The invention will be further explained with reference to the following embodiments and drawings:

a remote OTA upgrade program module as shown in fig. 1 to 8, which comprises a DCDC power supply circuit, a SIM card communication circuit, a BC23M module, an MCU control chip, a 485 communication circuit, a memory circuit and an antenna circuit, wherein the SIM card holder is connected with the BC23M module through corresponding pins, the BC23M module is connected with the MCU control chip and the antenna circuit through corresponding pins, the MCU control chip is connected with the memory circuit through corresponding pins, the 485 communication circuit is connected with the MCU control chip through corresponding pins, the 485 communication circuit is further provided with a terminal socket, the DCDC power supply circuit provides power for the whole module, the BC23M module downloads program data through the SIM card and the antenna circuit installed on the SIM card holder and sends the program data to the MCU control chip, the MCU control chip sends the received program data to the memory circuit, and the MCU control chip communicates with external unit equipment through the communication circuit for verification, and according to the verification result, the MCU control chip selects whether to extract program data from the storage circuit or not and sends the program data to external unit equipment through the 485 communication circuit.

The BC23M module is also connected with a network indicator light circuit through a corresponding pin. The network indicator light circuit consists of various resistors, triodes and diodes, and the BC23M module is an industrial grade four-frequency-band GSM/GPRS wireless module. The working frequency band is as follows: GSM850MHz, EGSM900MHz, DCS1800MHz and PCS1900 MHz. The module provides GPRS data transmission and GSM short message service, and supports GPRS multi-slot class 1-12 (default class 12), GPRS coding formats CS-1, CS-2, CS-3 and CS-4).

The antenna circuit comprises a resistor, a capacitor and an antenna pedestal, wherein an external antenna is arranged on the antenna pedestal. The MCU control chip adopts an STM32F030C8T6 chip, and the DCDC power supply circuit adopts an XL2596 chip and is designed together with various resistors, various capacitors, various diodes, power inductors and the like; the 485 communication circuit is formed by adopting a SP3485 chip in combination with various resistors, various capacitors, various diodes and the like; the storage circuit is formed by adopting a W25Q32flash storage chip to be matched with various resistors, various capacitors and the like. The terminal seat is 4PIN5.08 green terminal seat.

The circuit principle of the utility model is as follows: the SIM card is connected with the BC23M module through the SIM card seat for communication networking, then the BC23M module downloads program data through an antenna, then the BC23M module is connected with the main MCU through serial port communication, the received program data are sent to the main MCU, and the main MCU sends the received program data to the W25Q32FLASH memory chip for storage through SPI communication; then the MCU communicates with the 485 chip through a serial port, the 485 communication chip communicates with external unit equipment to compare program version information, and after the program version information is compared, the 485 communication chip sends a comparison result of the program version information to the main MCU; the main MCU is communicated to the FLASH W25Q32 through the SPI to extract program data, and then the main MCU sends the program data to the 485 communication chip; and then the 485 communication chip is communicated to the MCU program of the external equipment through 485 to upgrade.

To sum up, the utility model can realize the remote upgrading of the program, and after-sale service staff do not need to go to the site to upgrade the program, thereby saving company personnel, funds and time, and giving better use experience to users; and simultaneously, the utility model discloses can also report address information, know product sales information dynamic information, realize product dynamic tracking.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments without departing from the spirit and scope of the present invention, and that any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims (5)

1. A remote OTA upgrading program module is characterized by comprising a DCDC power supply circuit, a SIM card communication circuit, a BC23M module, an MCU control chip, a 485 communication circuit, a storage circuit and an antenna circuit, wherein the SIM card seat is connected with the BC23M module through corresponding pins, the BC23M module is connected with the MCU control chip and the antenna circuit through corresponding pins, the MCU control chip is connected with the storage circuit through corresponding pins, the 485 communication circuit is connected with the MCU control chip through corresponding pins, a terminal seat is further arranged on the 485 communication circuit, the DCDC power supply circuit provides power for the whole module, the BC23M module downloads program data through an SIM card and the antenna circuit which are installed on the SIM card seat and sends the program data to the MCU control chip, the MCU control chip sends the received program data to the storage circuit, and the MCU control chip communicates with external unit equipment through the 485 communication circuit for verification, and according to the verification result, the MCU control chip selects whether to extract program data from the storage circuit or not and sends the program data to external unit equipment through the 485 communication circuit.

2. The remote OTA upgrade program module according to claim 1, wherein the BC23M module is further connected with a network indicator light circuit through corresponding pins.

3. The remote OTA upgrade program module of claim 1, wherein the antenna circuit comprises an antenna pedestal, and the antenna pedestal is provided with an external antenna.

4. The remote OTA upgrade program module according to claim 1, wherein the MCU control chip employs an STM32F030C8T6 chip, the DCDC power supply circuit employs an XL2596 chip, and the 485 communication circuit employs an SP3485 chip.

5. The remote OTA upgrade program module of claim 1, wherein the memory circuit is a W25Q32flash memory chip and the terminal block is a 4PIN5.08 green terminal block.

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