Data collector

Abstract

The utility model discloses a data acquisition unit, relates to the field of data acquisition, adopts a star flash wireless transmission technology, can acquire and wirelessly transmit corresponding carbon data in real time in engineering machinery production, and compared with wireless short-distance communication technology gateways such as LoRa, Zigbee, Bluetooth and the like, the data acquisition unit provided by the scheme of the utility model has the advantages that the data acquisition efficiency is improved; according to the invention, a star-flash wireless transmission module circuit, an antenna and a data acquisition unit of an MCU are arranged in the star-flash terminal, so that the star-flash terminal can be wirelessly connected with a plurality of data acquisition units at the same time, the actual acquisition range is further expanded, and the star-flash wireless transmission technology can greatly reduce the time delay of signal transmission, greatly improve the anti-interference capability in the signal transmission process, and improve the transmission efficiency of the star-flash terminal. The characteristic of low power consumption is considered, and the long-distance, low-time-delay and high-stability carbon data acquisition requirements can be met.

Description

Technical Field

[0001] The utility model relates to the field of data collection, in particular to a data collector. Background Art

[0002] The carbon data collectors in the existing engineering machinery production process (where carbon data refers to signals such as current-type instrument signals and RS485 interface-type instrument signals) generally use wired IoT gateways, or collection devices such as LoRa and Zigbee Bluetooth wireless short-range communication gateways. However, the use of wired IoT gateways to collect data will greatly increase the wiring complexity, modification and maintenance costs of the workshop where the carbon data collector is located. The use of wireless short-range communication gateways such as LoRa (Long Range Radio, a long-distance, low-power radio technology standard) and Zigbee Bluetooth can greatly reduce the wiring complexity of the workshop where the carbon data collector is located. However, wireless short-range communication technology gateways such as LoRa, Zigbee, and Bluetooth have shortcomings in terms of latency, reliability, communication distance, and anti-interference, and cannot meet the requirements of long-distance, low-latency, and high-stability carbon data collection. Utility Model Content

[0003] The purpose of this utility model is to provide a data collector. The data collector provided by this solution adopts Star Flash wireless transmission technology, which can collect and wirelessly transmit corresponding carbon data in real time during engineering machinery production. Compared with wireless short-range communication technology gateways such as LoRa, Zigbee, and Bluetooth, the data collector with built-in Star Flash wireless transmission module circuit, antenna and MCU can enable the Star Flash terminal to wirelessly connect to multiple data collectors at the same time, thereby expanding the actual collection range. In addition, Star Flash wireless transmission technology can greatly reduce the delay of signal transmission, greatly improve the anti-interference ability during signal transmission, and take into account the low power consumption characteristics, which can meet the long-distance, low-latency, and high-stability carbon data collection requirements.

[0004] In order to solve the above technical problems, the utility model provides a data collector, including: MCU, star flash wireless transmission module circuit, carbon data interface circuit, antenna;

[0005] The input end of the carbon data interface circuit is connected to the carbon data signal, and the output end is connected to the MCU. The carbon data signal includes: a current-transmitting instrument signal and / or an RS485 interface instrument signal and / or an RS232 interface instrument signal;

[0006] The signal output terminal of the MCU is connected to the Xingshan wireless transmission module circuit, and is used to convert the carbon data signal into corresponding carbon data;

[0007] The Xingshan wireless transmission module circuit is wirelessly connected to the Xingshan terminal via the antenna, and is used to upload the carbon data to the Xingshan terminal via the antenna;

[0008] The Star Flash wireless transmission module circuit includes: a third circuit connector, a second filter module, a reset button, a Star Flash chip, and a charging capacitor;

[0009] The input end of the third circuit connector is connected to the fourth preset power source, and the output end is connected to the input end of the second filtering module;

[0010] The output end of the second filter module is connected to the power supply end of the star flash chip;

[0011] The reset button is connected in parallel with the charging capacitor;

[0012] The first communication end of the Star Flash chip is connected to the MCU, and the second communication end is connected to the Star Flash terminal through the antenna;

[0013] The anode of the charging capacitor is connected to the reset terminal of the star flash chip, and the cathode is connected to the ground.

[0014] Optionally, it further includes: a first circuit connector, a first voltage stabilizing module, and a power conversion chip;

[0015] The input end of the first circuit connector is connected to the first preset power source, and the output end is connected to the power supply end of the power conversion chip and the first end of the first voltage stabilizing module respectively;

[0016] The second end of the first voltage stabilizing module is grounded;

[0017] The output end of the power conversion chip is connected to the power supply end of the MCU, and is used to convert the voltage transmitted by the first preset power supply into the voltage required for the operation of the MCU.

[0018] Optionally, the first voltage stabilizing module is a voltage stabilizing diode, the anode of the voltage stabilizing diode is grounded, and the cathode of the voltage stabilizing diode is respectively connected to the output end of the first circuit connector and the power supply end of the power conversion chip.

[0019] Optionally, also include:

[0020] An EEPROM storage circuit, wherein an input end of the EEPROM storage circuit is connected to the MCU and is used to store the carbon data;

[0021] and / or,

[0022] The FLASH storage circuit has an input end connected to the MCU and a heat dissipation end grounded, and is used to store the carbon data.

[0023] Optionally, also include:

[0024] An indicator light circuit, wherein the first end of the indicator light circuit is connected to a second preset power supply, and the second end is connected to the communication connection indicator light drive pin of the MCU, and is used to light up after power is supplied and the MCU is in communication connection with the Star Flash wireless transmission module circuit.

[0025] Optionally, also include:

[0026] A crystal oscillator circuit is connected to the clock signal terminal of the MCU and is used to provide a preset clock signal to the MCU.

[0027] Optionally, the crystal oscillator circuit includes: a passive crystal, a first load capacitor, and a second load capacitor;

[0028] The external crystal oscillator input end of the passive crystal is respectively connected to the crystal oscillator positive phase input end of the clock signal of the MCU and the first end of the first load capacitor, and the external crystal oscillator output end is respectively connected to the crystal oscillator negative phase output end of the clock signal of the MCU and the first end of the second load capacitor;

[0029] The second end of the first load capacitor and the second end of the second load capacitor are both grounded.

[0030] Optionally, the carbon data interface circuit includes:

[0031] An analog interface circuit, wherein the input end of the analog interface circuit is connected to the current-transmitting instrument signal, and the output end is connected to the MCU, and is used to transmit the collected current-transmitting instrument signal to the MCU;

[0032] and / or,

[0033] An RS485 interface circuit, wherein the input end of the RS485 interface circuit is connected to the RS485 interface instrument signal, and the output end is connected to the MCU, and is used to transmit the collected RS485 interface instrument signal to the MCU;

[0034] and / or,

[0035] An RS232 interface circuit, wherein the input end of the RS232 interface circuit is connected to the RS232 interface instrument signal, and the output end is connected to the MCU, and is used to transmit the collected RS232 interface instrument signal to the MCU.

[0036] Optionally, the analog interface circuit includes: a second circuit connector, a second voltage stabilization module, a first filtering module, and a voltage follower circuit;

[0037] The input end of the second circuit connector is connected to the third preset power supply, the output end is connected to the first end of the second voltage stabilizing module, and the signal input end is connected to the signal of the current-transmitting instrument;

[0038] The second end of the second voltage stabilizing module is grounded;

[0039] The input end of the first filtering module is connected to the output end of the second circuit connector and the first end of the second voltage stabilizing module respectively, and the output end is connected to the positive input end of the voltage follower circuit;

[0040] The negative input terminal of the voltage follower circuit is connected to the output terminal of the voltage follower circuit and the MCU respectively.

[0041] Optionally, the Star Flash wireless transmission module circuit further includes: a pull-up resistor and a pull-down resistor;

[0042] The first end of the pull-up resistor is connected to the first debugging end of the Star Flash chip, and the second end is connected to the fifth preset power supply;

[0043] The first end of the pull-down resistor is connected to the second debugging end of the Star Flash chip, and the second end is connected to the ground.

[0044] The purpose of this utility model is to provide a data collector. The data collector provided by this solution adopts Star Flash wireless transmission technology, which can collect and wirelessly transmit corresponding carbon data in real time during engineering machinery production. Compared with wireless short-range communication technology gateways such as LoRa, Zigbee, and Bluetooth, the data collector with built-in Star Flash wireless transmission module circuit, antenna and MCU has the beneficial effect of enabling the Star Flash terminal to wirelessly connect to multiple data collectors at the same time, thereby expanding the actual collection range. In addition, Star Flash wireless transmission technology can greatly reduce the delay of signal transmission, greatly improve the anti-interference ability during signal transmission, and take into account the low power consumption characteristics, which can meet the long-distance, low-latency, and high-stability carbon data collection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0046] Figure 1 A structural diagram of a data collector provided by the utility model;

[0047] Figure 2aThis is a structural diagram of a USB interface in an MCU provided by the utility model; Figure 2b This is a schematic diagram of the structure of a connection chip in an MCU provided by the utility model; Figure 2c This is a schematic diagram of the structure of a crystal oscillator circuit in an MCU provided by the utility model;

[0048] Figure 3a This is a schematic diagram of the structure of a reset module in an MCU provided by the utility model; Figure 3b This is a schematic diagram of the structure of a processing chip in an MCU provided by the present invention;

[0049] Figure 4 This is a schematic structural diagram corresponding to a first circuit connector, a first voltage stabilizing module, and a power conversion chip provided by the present invention;

[0050] Figure 5 A schematic diagram of the structure of an RS485 interface circuit provided by the utility model;

[0051] Figure 6 A schematic diagram of the structure of an RS232 interface circuit provided by the utility model;

[0052] Figure 7 This is a structural diagram of an analog interface circuit provided by the utility model;

[0053] Figure 8a This is a schematic diagram of the structure of the Star Flash chip in the Star Flash wireless transmission module circuit provided by the utility model; Figure 8b This is a structural diagram of the third circuit connector in a Star Flash wireless transmission module circuit provided by the present invention;

[0054] Figure 9a This is a structural diagram of the second filter module in the star flash wireless transmission module circuit provided by the utility model; Figure 9b This is a structural schematic diagram of a reset module composed of a reset button and a charging capacitor in a star flash wireless transmission module circuit provided by the utility model. DETAILED DESCRIPTION

[0055] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are 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 making creative efforts are within the scope of protection of the present invention.

[0056] Please refer to Figure 1 , Figure 1 This is a structural diagram of a data collector provided by the utility model, which includes: MCU, Star Flash wireless transmission module circuit, carbon data interface circuit, and antenna;

[0057] The input end of the carbon data interface circuit is connected to the carbon data signal, and the output end is connected to the MCU. The carbon data signal includes: a current-transmitting instrument signal and / or an RS485 interface instrument signal and / or an RS232 interface instrument signal;

[0058] The signal output terminal of the MCU is connected to the Xingshan wireless transmission module circuit to convert the carbon data signal into corresponding carbon data;

[0059] The Xingshan wireless transmission module circuit is wirelessly connected to the Xingshan terminal through the antenna, and is used to upload carbon data to the Xingshan terminal through the antenna;

[0060] The Star Flash wireless transmission module circuit includes: a third circuit connector, a second filter module, a reset button, a Star Flash chip, and a charging capacitor;

[0061] The input end of the third circuit connector is connected to the fourth preset power source, and the output end is connected to the input end of the second filtering module;

[0062] The output end of the second filter module is connected to the power supply end of the Star Flash chip;

[0063] The reset button is connected in parallel with the charging capacitor;

[0064] The first communication end of the Star Flash chip is connected to the MCU, and the second communication end is connected to the Star Flash terminal through the antenna;

[0065] The anode of the charging capacitor is connected to the reset terminal of the Star Flash chip, and the cathode is connected to the ground.

[0066] In this utility model, considering that the existing carbon data collectors generally use wired Internet of Things gateways, or wireless short-range communication gateways such as LoRa and Zigbee Bluetooth and other collection devices, among which, the use of wired Internet of Things gateways to collect data will greatly increase the wiring complexity, modification and maintenance costs of the workshop where the carbon data collector is located; and the use of wireless short-range communication gateways such as LoRa and Zigbee Bluetooth, although it can greatly reduce the wiring complexity of the workshop where the carbon data collector is located, wireless short-range communication technology gateways such as LoRa, Zigbee, Bluetooth have deficiencies in terms of delay, reliability, communication distance, anti-interference, etc., and cannot meet the requirements of long-distance, low-latency, and high-stability carbon data collection. Therefore, in order to reduce the wiring complexity and meet the requirements of long-distance, low-latency, and high-stability carbon data collection, this solution provides a new data collector and sets an MCU (Microcontroller) inside the data collector. Unit, micro control unit), Star Flash wireless transmission module circuit, carbon data interface circuit, antenna, among which, the function of the carbon data interface circuit is to collect carbon data signals, and the function of the MCU is to convert the carbon data signals into corresponding carbon data. This solution takes into account that Star Flash wireless transmission technology can collect and wirelessly transmit corresponding carbon data in real time during engineering machinery production, and compared with wireless short-range communication technology gateways such as LoRa, Zigbee, and Bluetooth, the Star Flash terminal can simultaneously wirelessly connect to multiple data collectors with built-in Star Flash wireless transmission module circuits, thereby expanding the actual collection range. In addition, Star Flash wireless transmission technology can greatly reduce the delay of signal transmission, greatly improve the anti-interference ability during signal transmission, and take into account the low power consumption characteristics, which can meet the requirements of long-distance, low-latency, and high-stability carbon data collection, and perfectly solve the problems existing in the two carbon data collectors in the existing technology.In addition, in the present invention, because the Star Flash terminal can wirelessly connect to multiple data collectors over a large range, and the data collectors are all equipped with Star Flash wireless transmission module circuits, the actual carbon data transmission process should be that the Star Flash terminal sends a wake-up signal, thereby waking up the Star Flash wireless transmission module circuit in the corresponding data collector, and sending the collection requirements in the wake-up signal to the MCU, and using the MCU to upload the signal corresponding to the collection requirement to the Star Flash terminal through the Star Flash wireless transmission module circuit. The way the Star Flash terminal wakes up the Star Flash wireless transmission module circuit is to control the closure of the reset button by sending a wake-up signal. The reset end of the Star Flash chip is grounded through a charging capacitor, and the reset button is connected in parallel with the charging capacitor. When the capacitor is not charged, its voltage is 0. At this time, the reset terminal of the Star Flash chip is directly pulled to a low level by the charging capacitor, triggering the chip reset. When the charging capacitor is charging, the voltage of the reset terminal of the Star Flash chip slowly rises from 0. When the charging capacitor voltage rises to the reset threshold voltage, the reset terminal of the Star Flash chip becomes a high level, and the Star Flash chip ends the reset state and starts normal operation. The reset time is determined by the capacitance of the charging capacitor. However, when the reset button is pressed, the reset button will directly short-circuit the charging capacitor, forcibly pulling the reset terminal of the Star Flash chip to a low level and immediately triggering the reset of the Star Flash chip, so that the Star Flash wireless transmission module circuit will not be in a working state all the time, greatly reducing the power consumption of the Star Flash wireless transmission module circuit. In addition, in order to ensure that the Star Flash wireless transmission module circuit can stably transmit the received carbon data to the Star Flash terminal, this solution also adds a second filter circuit inside the Star Flash wireless transmission module circuit to filter out the interference during carbon data transmission, thereby improving the reliability of the solution.

[0067] It should be noted that the MCU includes: USB (Universal Serial Bus) interface, connection chip, and processing chip; the structure of the USB interface is as follows Figure 2a As shown, the structure of the connection chip is as follows Figure 2b As shown, the structure of the crystal oscillator circuit connected to the MCU is as follows Figure 2c As shown, the structure of the reset module of the processing chip is as follows Figure 3a As shown, the structure of the processing chip is as follows Figure 3bAs shown, the processor chip model may be GD32F103RET6. Pins 1, 19, 32, 48, and 64 of the processor chip connect to the power supply, and pin 13 connects to VDDA (analog power supply), providing operating voltage for the analog circuits within the processor chip. Furthermore, the processor chip can also have corresponding capacitors at pins 1, 19, 32, 48, and 64 to filter the connected power supply. The power supply connected to pins 1, 19, 32, 48, and 64 can be filtered through the corresponding inductors and capacitors before outputting VDDA. Pins 12, 18, 31, 47, and 63 of the processor chip are connected to ground (GND) to ensure a potential reference for the circuit. Pin 7 (NRST) of the processor chip is the reset pin. It can be connected to a reset circuit consisting of a resistor, capacitor, and reset button (similar to the reset circuit connected to the Star Flash chip). This resets the chip and ensures chip initialization and stable operation. Pins 3 and 4 of the processor chip connect to a 32.768kHz crystal oscillator circuit consisting of two load capacitors and a passive crystal to provide the clock signal for the processor chip's internal real-time clock. Pins 5 and 6 of the processing chip connect to an 8MHz master clock crystal oscillator composed of two additional load capacitors and a passive crystal. This provides the chip with a master clock signal, ensuring the proper timing of its various functional modules. Pin 8 of the processing chip serves as an analog analog input, collecting filtered and converted data from a 4-20mA current transmitter. Pins 16 and 17, 29 and 30, 42 and 43, and 51 and 52 of the processing chip respectively constitute the UART2, UART3, UART1, and UART4 universal asynchronous receiver / transmitter interfaces, connecting to the Starflash wireless transmission module circuit, RS485 interface circuit, USB interface circuit, and RS232 interface circuit, respectively, enabling asynchronous serial communication between the chip and external devices. Pins 20, 21, 22, and 23 of the processing chip serve as the chip's SPI (Serial Peripheral Interface) communication interface, connecting to external FLASH (flash memory) storage circuits. Pins 58 and 59 of the processing chip are IIC (Inter-Integrated Circuit) interfaces, connecting to an external EEPROM (Electrically Erasable Programmable Read-Only Memory) storage circuit. Pins 28 and 59 of the processing chip are connected to ground through resistors, configuring the chip for boot mode and ensuring proper operation. Pin 56 of the processing chip is connected to pin 39 of the Star Flash chip, waking it from sleep mode.Pins 37 and 40 of the processing chip are connected to corresponding LEDs (Light Emitting Diodes) and grounded through resistors. The resistors limit the current, allowing the processing chip to output corresponding electrical signals to control the lighting of the corresponding LEDs, thereby indicating the processing chip's operating status. Pins 1, 2, and 3 of the circuit connector can be connected to pins 49, 46, and 56 of the processing chip for SWD debugging of the MCU. Pin 1 of the circuit connector is pulled up to the connected power supply through a pull-up resistor, and pin 2 is pulled down to ground through a pull-down resistor to ensure the normal operation of the SWD debugging port of the processing chip. Pin 3 of the circuit connector connects to the power supply, and pin 5 connects to ground. The connector chip, model CH340N, converts USB signals into UART (Universal Asynchronous Receiver / Transmitter) signals. Pins 6 and 7 of the connector chip connect to pins 43 and 42 of the processing chip for debugging the processing chip.

[0068] It should also be noted that the structure of the Star Flash chip in the Star Flash wireless transmission module circuit is as follows Figure 8a As shown, the structure of the third circuit connector is as follows Figure 8b As shown, the structure of the second filtering module is as follows Figure 9a As shown, the structure of the reset module composed of the reset button and the charging capacitor is as follows Figure 9b As shown, the power supply of the Star Flash chip is filtered through an inductor and two capacitors, and the output signal is transmitted to the Star Flash chip's VDD pin. VDD is connected to pin 12 of the Star Flash chip, while pins 1, 11, 13, 27, and 40 are grounded. Pin 39 of the Star Flash chip is connected to a reset circuit consisting of a reset button, a charging capacitor, and a resistor connected in series to ground. This resets the chip and ensures chip initialization and stable operation. The reset button is connected across the charging capacitor for manual chip reset. Pin 39 of the Star Flash chip is also connected to pin 56 of the processing chip. Pins 32 and 33 of the Star Flash chip are connected to pins 17 and 16 of the processing chip, enabling data transmission between the MCU and the Star Flash wireless transmission module circuit. Pins 1, 2, and 3 of the third circuit connector are connected to pins 34, 35, and 39 of the Star Flash chip for debugging. Pin 1 of the third circuit connector is pulled up to the power supply via a pull-up resistor, while pin 2 is pulled down to ground via a pull-down resistor to ensure proper operation of the debug port. Pin 3 of the third circuit connector is connected to VDD, and pin 5 of the third circuit connector is grounded.

[0069] Based on the above embodiment:

[0070] As an optional embodiment, it further includes: a first circuit connector, a first voltage stabilizing module, and a power conversion chip;

[0071] The input end of the first circuit connector is connected to the first preset power source, and the output end is connected to the power supply end of the power conversion chip and the first end of the first voltage stabilizing module respectively;

[0072] The second end of the first voltage stabilizing module is grounded;

[0073] The output end of the power conversion chip is connected to the power supply end of the MCU, and is used to convert the voltage transmitted by the first preset power supply into the voltage required for the operation of the MCU.

[0074] In the present invention, considering that the MCU needs to work stably and complete the collection and transmission of carbon data, it is necessary to ensure the stability of the MCU power-on process. Therefore, this solution adds a first circuit connector, a first voltage stabilizing module, and a power conversion chip, wherein the first circuit connector is used to connect to the first preset power supply, and the first voltage stabilizing module is used to stabilize the voltage transmitted by the first preset power supply, and finally the power conversion chip converts it into the voltage required for the MCU operation, which can ensure the stability of the MCU operation and improve the accuracy of the solution.

[0075] It should be noted that if Figure 4 As shown, pin 1 of the first circuit connector is grounded, and pin 2 is used to introduce a first preset power supply. Pins 2 of the first circuit connector are respectively connected to a first voltage regulator module and a diode. The first voltage regulator module is a voltage regulator diode, which is connected in parallel with the diode. The diode prevents current from flowing into the subsequent circuit when the first preset power supply is reversely connected, thus providing reverse polarity protection. The voltage regulator diode will reversely break down when the input voltage exceeds its regulated value, stabilizing the voltage at a preset voltage value, such as approximately 5.1V. This provides overvoltage protection and ensures that the output voltage to the subsequent circuit remains stable at a certain voltage, such as +5V. Pin 1 of the power converter chip is the enable pin, which starts the chip when the voltage level is high. Pin 4 is connected to the cathode of the diode, that is, it receives a +5V voltage. The power converter chip controls pin 3 through internal circuitry to work in conjunction with the inductor, periodically charging and discharging the inductor to achieve voltage conversion and regulation. Two resistors connected to the ground of the inductor form a voltage divider circuit to sample the output voltage of the power converter chip and feed the sampled voltage back to pin 5 of the power converter chip. The power conversion chip automatically adjusts the output state of the LX pin based on the comparison result of the FB pin voltage and the internal reference voltage, thereby maintaining the stability of its own output voltage.

[0076] As an optional embodiment, the first voltage stabilizing module is a voltage stabilizing diode, the anode of the voltage stabilizing diode is grounded, and the cathode of the voltage stabilizing diode is respectively connected to the output end of the first circuit connector and the power supply end of the power conversion chip.

[0077] In this utility model, considering that the voltage stabilizing diode has the advantages of low cost, strong adaptability (applicable to a variety of voltage and current conditions), low power consumption, high reliability, low failure rate, simple structure, and the ability to operate within a wide temperature range, this solution chooses to use a voltage stabilizing diode as the first voltage stabilizing module, thereby improving the stability and reliability of the solution.

[0078] As an optional embodiment, the method further includes:

[0079] An EEPROM storage circuit, wherein an input end of the EEPROM storage circuit is connected to the MCU and is used for storing carbon data;

[0080] and / or,

[0081] The FLASH storage circuit and the EEPROM storage circuit have their input terminals connected to the MCU and their heat dissipation terminals grounded, and are used to store carbon data.

[0082] In the present invention, considering that although the carbon data can be sent to the remote Star Flash terminal through the action of the Star Flash wireless transmission module circuit, once the remote Star Flash terminal fails, the operator cannot view the carbon data therein, so this solution adds an EEPROM storage circuit and / or a FLASH storage circuit to store the carbon data received by the MCU at the near end, that is, inside the data collector. In this way, when the operator needs to call the carbon data, even if the remote Star Flash terminal fails, accurate carbon data can still be obtained. In addition, considering the actual collection cycle of carbon data, this solution can choose to set an EEPROM storage circuit, or set a FLASH storage circuit, or set an EEPROM storage circuit and a FLASH storage circuit at the same time. The EEPROM storage circuit has more erasable times, and the FLASH storage circuit can store more data per unit area and has a higher data density. Therefore, selecting one of the above three setting methods according to actual storage requirements is more convenient to meet actual storage requirements and improves the flexibility of the solution.

[0083] It should be noted that the MCU's data storage circuit includes EEPROM and FLASH memory circuits for data storage. The FLASH memory chip model may be W25Q256JVEIQ. Pins 1, 2, 5, and 6 of the FLASH memory chip are connected to pins 20, 22, 23, and 21 of the processing chip for SPI communication. The processing chip stores and reads data via SPI communication. A resistor is connected between the power supply and pin 1 of the FLASH memory chip to ensure that the CS (Chip Select) pin of the FLASH memory chip remains high when it is not selected to prevent malfunction. (SPI communication allows full-duplex communication between a master device and one or more slave devices. In SPI communication, the master device activates a specific slave device by controlling the CS pin level, ensuring that data is correctly transmitted to the target device. For example, when the master device needs to communicate with the second slave device, it sets the CS pin of the second slave device to low while keeping the CS pins of the other slave devices high. This ensures that only the second slave device responds to the master's communication request, while the other slave devices remain silent.) A resistor is connected between the power supply and pin 3 of the FLASH memory chip, and another resistor is connected between the power supply and pin 7 of the FLASH memory chip to ensure that the MCU can properly store and read data from the FLASH memory chip. Pin 8 of the FLASH memory chip is connected to the power supply and grounded via a capacitor to filter out high-frequency noise from the power supply and stabilize the operating voltage of the FLASH memory chip. Pin 9 of the FLASH memory chip is grounded as a heat sink to enhance heat dissipation and ensure reliable operation. The EEPROM memory chip is BL24C16F-PARC. Pins 5 and 6 of the EPROM memory chip are connected to pins 59 and 58 of the processor chip for I / O communication, which allows the processor chip to store and read data. A resistor is connected between VCC and pin 5 of the EPROM memory chip, and another resistor is connected between the power supply and pin 6 of the EPROM memory chip to ensure that the MCU can properly store and read data from the EPROM memory chip. Pin 8 of the EPROM storage circuit chip is connected to the power supply and is connected to the ground through a capacitor to filter out high-frequency noise in the power supply and stabilize the operating voltage of the EPROM storage circuit chip. Pins 1, 2, 3, and 4 of the EPROM storage circuit chip are grounded.

[0084] As an optional embodiment, the method further includes:

[0085] The indicator light circuit has a first end connected to a second preset power supply, and a second end connected to the communication connection indicator light drive pin of the MCU, and is used to light up after power is supplied and the MCU is in communication connection with the Star Flash wireless transmission module circuit.

[0086] In the present utility model, considering that whether the MCU communicates normally with the Star Flash wireless transmission module circuit determines whether the data collector can stably upload the carbon data to the communication network, this scheme adds an indicator light circuit, which is used to judge whether the communication between the MCU and the Star Flash wireless transmission module circuit is normal and light up accordingly, so that the user can judge whether the communication between the MCU and the Star Flash wireless transmission module circuit is normal according to the lighting status of the indicator light circuit. For example: after the indicator light circuit is powered on, it remains in a constantly lit state, which can be used to determine that the communication between the MCU and the Star Flash wireless transmission module circuit is normal; and if the indicator light circuit suddenly flashes after being powered on, it can be determined that the communication between the MCU and the Star Flash wireless transmission module circuit is not stable enough, so that the collected carbon data can be stably transmitted to the Star Flash terminal.

[0087] As an optional embodiment, the method further includes:

[0088] The crystal oscillator circuit is connected to the clock signal terminal of the MCU and is used to provide a preset clock signal to the MCU.

[0089] In the present invention, considering that the instruction execution of the MCU needs to be based on clock oscillation, that is, the instructions issued by the MCU or the instructions received by the MCU require a clock cycle to run, whether the MCU can operate normally is closely related to whether it has a standard clock cycle as a benchmark. Therefore, in order to ensure the normal operation of the MCU, this solution adds a crystal oscillator circuit, whose function is to provide the MCU with a preset clock signal, so that the MCU can time the communication between itself and the carbon data interface circuit according to the preset clock signal, and time the communication between itself and the Star Flash wireless transmission module circuit according to the preset clock signal, and run each instruction based on the clock cycle corresponding to the preset clock signal, thereby ensuring the reliability of the solution.

[0090] As an optional embodiment, a crystal oscillator circuit includes: a passive crystal, a first load capacitor, and a second load capacitor;

[0091] The external crystal oscillator input end of the passive crystal is respectively connected to the crystal oscillator positive phase input end of the clock signal of the MCU and the first end of the first load capacitor, and the external crystal oscillator output end is respectively connected to the crystal oscillator negative phase output end of the clock signal of the MCU and the first end of the second load capacitor;

[0092] The second end of the first load capacitor and the second end of the second load capacitor are both grounded.

[0093] In this utility model, the crystal oscillator circuit includes a passive crystal, a first load capacitor, and a second load capacitor. The passive crystal (typically a quartz crystal) is a high-Q resonator whose physical properties cause it to generate mechanical vibrations at a specific frequency, thereby forming a stable electrical resonance. This utilizes the crystal's resonant properties in conjunction with an external capacitor to form an oscillator circuit, generating a clock signal. Because the passive crystal circuit serves as the clock source for the MCU, the passive crystal, the first load capacitor, and the second load capacitor can, together with the inverting amplifier, feedback resistor, and current-limiting resistor integrated within the MCU, form a Pierce oscillator circuit. The passive crystal provides a frequency reference through mechanical resonance, while the first and second load capacitors act as load capacitors and collaborate with the MCU's internal circuitry to ensure precise start-up and stable operation of the Pierce oscillator circuit. The capacitance values ​​of the first and second load capacitors are selected based on actual conditions to balance crystal parameters and improve circuit stability.

[0094] As an optional embodiment, the carbon data interface circuit includes:

[0095] The analog interface circuit has an input terminal connected to a current-transmitting instrument signal and an output terminal connected to the MCU, and is used to transmit the collected current-transmitting instrument signal to the MCU;

[0096] and / or,

[0097] RS485 interface circuit, the input end of the RS485 interface circuit is connected to the RS485 interface instrument signal, and the output end is connected to the MCU, and is used to transmit the collected RS485 interface instrument signal to the MCU;

[0098] and / or,

[0099] RS232 interface circuit, the input end of the RS232 interface circuit is connected to the RS232 interface instrument signal, and the output end is connected to the MCU, and is used to transmit the collected RS232 interface instrument signal to the MCU.

[0100] In the present utility model, considering that the carbon data in engineering production generally includes: current type instrument signals, RS485 interface type instrument signals and RS232 interface type instrument signals, the carbon data interface circuit of this scheme selects a built-in analog interface circuit and / or RS485 interface circuit and / or RS232 interface circuit in order to accurately collect the above signals. Among them, the analog interface circuit can collect and transmit current type instrument signals, the RS485 interface circuit collects RS485 interface type instrument signals, and the RS232 interface circuit collects RS232 interface type instrument signals. The corresponding number and type of interface circuits can be flexibly built-in according to the actual carbon data collection requirements. For example: if the current carbon data collection requirement is to collect current type instrument signals, only the analog interface circuit can be set inside the carbon data interface circuit, which improves the flexibility of the carbon data interface circuit setting.

[0101] It should be noted that the analog interface circuit, RS485 interface circuit, and RS232 interface circuit are connected to the I / O port of the MCU. The MCU regularly collects the received raw carbon data, and verifies, processes and analyzes the raw data. The MCU also stores the analyzed and processed data in the data storage module, and outputs the data to the Star Flash wireless transmission module circuit. The Star Flash wireless transmission module circuit is used to communicate with external Star Flash terminals. The external Star Flash terminal can be a mobile phone terminal, tablet, computer, etc. with Star Flash function, or it can be a gateway, router, or other equipment with Star Flash communication technology. By establishing a Star Flash connection with an external Star Flash terminal, the carbon data of the engineering machinery production process collected by the data collector can be viewed directly on a mobile phone terminal, tablet, or computer, or uploaded to the carbon data management platform through the Star Flash gateway or Star Flash router for further analysis and management. The data collector and the external Starflash terminal are wirelessly connected via the Starflash 1.0 wireless communication protocol. Starflash technology offers networking advantages over traditional technologies such as Bluetooth and Wi-Fi. Starflash technology can support networking of up to 4096 devices, so external Starflash terminals can simultaneously establish communication connections with multiple data collectors, reducing the number of external terminals and reducing costs. To reduce power consumption, the data collector's Starflash module is in sleep mode most of the time. When the carbon data management platform requires data from a data collector, the external terminal sends a signal packet to the data collector. The signal packet contains the ID (Identity Document) number of the awakened terminal collector and the data to be collected. The corresponding collector exits sleep mode and collects data according to the signal requirements. It adds a timestamp to form a data packet and sends it to the external terminal. Upon receiving the confirmation signal from the external Starflash terminal, the data collector enters sleep mode, reducing power consumption while awaiting the next wake-up.

[0102] It should also be noted that the structure of the RS485 interface circuit is as follows Figure 5As shown, the RS485 chip and RS485 connector are included. The RS485 chip model may be MAX485EAS. Pin 8 of the RS485 chip is connected to the power supply, and a capacitor is connected between pin 5 and ground to filter out high-frequency noise from the power supply, stabilize the power supply voltage, and ensure stable chip operation. Pins 1 and 4 of the RS485 chip are connected to pins 30 and 29 of the processing chip for data transmission and reception. Pins 2 and 3 of the RS485 chip are enable control pins. Resistors are used to set the level to control the RS485 chip's receive and transmit modes. Pins 6 and 7 of the RS485 chip are connected to pins 1 (RS485_A) and 2 (RS485_B) of the RS485 interface, respectively, to enable communication with external RS485 devices and collect data from instruments with external RS485 interfaces. Two resistors are connected between pins 6 and 7 of the RS485 chip and ground, respectively, to provide pull-down and impedance matching. Three transient suppression diodes can also be added and connected between pin 1 of the RS485 interface (RS485_A) and ground, between pin 12 of the RS485 connector (RS485_B) and ground, and between pin 1 of the RS485 connector (RS485_A) and pin 2 of the RS485 connector (RS485_B) to suppress surge voltage and electrostatic discharge, protect the RS485 connector and RS485 chip from damage by transient overvoltage, and improve the reliability and anti-interference capability of the RS485 interface circuit.

[0103] It should also be noted that the structure of the RS232 interface circuit is as follows Figure 6As shown, the RS232 chip and RS232 connector are included. The RS232 chip model is SIT232ESE. Pin 16 of the RS232 chip is connected to the power supply, providing the operating voltage for the RS232 chip. Pin 15 of the RS232 chip is connected to ground. A capacitor is connected between pin 16 of the RS232 chip and ground to filter out high-frequency noise in the power supply and stabilize the operating voltage of the RS232 chip. One capacitor is connected between pins 1 and 3 of the RS232 chip, another capacitor is connected between pins 4 and 5 of the RS232 chip, and two capacitors are connected between pins 2 and 6 of the RS232 chip and ground. These capacitors are key components of the charge pump circuit. They assist the charge pump within the RS232 chip in voltage conversion and energy storage, generating the positive and negative voltage levels required for RS232 communication. This ensures that the TTL-level signals at pins 11 and 12 of the RS232 chip can be accurately converted into RS232-level signals. Pins 11 and 12 of the RS232 chip connect to pins 51 and 52 of the processing chip for data transmission and reception. Pins 14 and 13 of the RS232 chip are connected to pins 2 (RS232_TX) and 1 (RS232_RX) of the RS232 connector, respectively, through two 0Ω resistors to collect data from instruments connected to the external RS232 interface. Two transient suppression diodes (TSS) are connected between RS232_RX and RS232_TX, respectively, and ground to suppress transient overvoltages at the RS232 interface, protecting the RS232 chip and interface from damage caused by interference such as electrostatic discharge and surges, thereby improving the reliability and anti-interference capabilities of the RS232 chip interface circuit.

[0104] It should also be noted that the structure of the analog interface circuit is as follows Figure 7As shown, the second circuit connector is used to receive a 0-20mA current signal (transmitting current-type instrument signals). A transient suppression diode (TVS) is connected across the second circuit connector to suppress surge voltage and electrostatic discharge, protecting subsequent circuitry. A resistor is connected in parallel with the second circuit connector to convert the input current signal into a voltage signal, achieving IV conversion. An inductor and capacitor form a filter network (first filter module) to filter the converted voltage signal, removing high-frequency noise and ensuring signal purity. Furthermore, a voltage divider network consisting of two resistors is included within the analog interface circuit to condition the filtered signal. The operational amplifier (voltage follower circuit) can be a KTA333-ST5 model. Its non-inverting input, pin 3, receives the conditioned signal. A capacitor is connected between pin 5 of the operational amplifier and ground to filter power supply noise and ensure stable operation. The amplified output signal is connected to the 8th pin of the processing chip through the resistor at the output end of the operational amplifier for subsequent analog-to-digital conversion processing. The resistor at the output end of the operational amplifier plays the role of impedance matching and signal isolation, ensuring that the signal is accurately input to the acquisition end. In actual applications, in addition to setting resistors, other signal isolation devices can also be set to play the role of signal isolation.

[0105] As an optional embodiment, the analog interface circuit includes: a second circuit connector, a second voltage stabilization module, a first filtering module, and a voltage follower circuit;

[0106] The input end of the second circuit connector is connected to the third preset power supply, the output end is connected to the first end of the second voltage stabilizing module, and the signal input end is connected to the signal of the current-transmitting instrument;

[0107] The second terminal of the second voltage stabilizing module is grounded;

[0108] The input end of the first filter module is connected to the output end of the second circuit connector and the first end of the second voltage stabilizing module respectively, and the output end is connected to the positive input end of the voltage follower circuit;

[0109] The negative input terminal of the voltage follower circuit is connected to the output terminal of the voltage follower circuit and the MCU respectively.

[0110] In this utility model, considering the stability of the current-transmitting instrument signal acquisition process, a second circuit connector is provided in the analog interface circuit. The current-transmitting instrument signal is acquired through the second circuit connector. In addition, a second voltage stabilization module and a first filtering module are added. The second voltage stabilization module can stabilize the voltage of the current-transmitting instrument signal during transmission, and the first filtering module is used to filter out interference during transmission of the current-transmitting instrument signal. In addition, a voltage follower circuit is added to the analog interface circuit. The voltage follower circuit has the characteristics of high input impedance and low output impedance, which can effectively isolate the front-end and back-end circuits and prevent the front-end circuit from affecting the back-end circuit. Therefore, it can isolate the front-end acquisition circuit of the current-transmitting instrument signal from the MCU. By isolating the load from the input terminal, the voltage follower circuit can prevent distortion of the current-transmitting instrument signal and ensure the clarity and stability of the current-transmitting instrument signal. The voltage follower circuit can provide a constant output voltage and is not affected by the impedance of the back-end circuit, thereby improving the circuit's load capacity and ensuring the efficiency of the current-transmitting instrument signal transmission.

[0111] As an optional embodiment, the Star Flash wireless transmission module circuit further includes: a pull-up resistor and a pull-down resistor;

[0112] A first end of the pull-up resistor is connected to the first debugging end of the Star Flash chip, and a second end is connected to the fifth preset power supply;

[0113] A first end of the pull-down resistor is connected to the second debugging end of the Star Flash chip, and a second end is connected to the ground.

[0114] In the present utility model, pull-up resistors and pull-down resistors are added to the Star Flash wireless transmission module circuit, and the pull-up resistors and pull-down resistors are respectively connected to the first debugging end and the second debugging end of the Star Flash chip, which can stabilize the signal transmission stability of the Star Flash chip and improve the reliability of the solution.

[0115] It should be noted that, in this specification, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0116] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A data collector, characterized in that: include: MCU, Star Flash wireless transmission module circuit, carbon data interface circuit, antenna; The input end of the carbon data interface circuit is connected to the carbon data signal, and the output end is connected to the MCU. The carbon data signal includes: a current-transmitting instrument signal and / or an RS485 interface instrument signal and / or an RS232 interface instrument signal; The signal output terminal of the MCU is connected to the Xingshan wireless transmission module circuit, and is used to convert the carbon data signal into corresponding carbon data; The Xingshan wireless transmission module circuit is wirelessly connected to the Xingshan terminal via the antenna, and is used to upload the carbon data to the Xingshan terminal via the antenna; The Star Flash wireless transmission module circuit includes: a third circuit connector, a second filter module, a reset button, a Star Flash chip, and a charging capacitor; The input end of the third circuit connector is connected to the fourth preset power source, and the output end is connected to the input end of the second filtering module; The output end of the second filter module is connected to the power supply end of the star flash chip; The reset button is connected in parallel with the charging capacitor; The first communication end of the Star Flash chip is connected to the MCU, and the second communication end is connected to the Star Flash terminal through the antenna; The anode of the charging capacitor is connected to the reset terminal of the star flash chip, and the cathode is connected to the ground.

2. The data collector according to claim 1, wherein: Also includes: A first circuit connector, a first voltage stabilizing module, and a power conversion chip; The input end of the first circuit connector is connected to the first preset power source, and the output end is connected to the power supply end of the power conversion chip and the first end of the first voltage stabilizing module respectively; The second end of the first voltage stabilizing module is grounded; The output end of the power conversion chip is connected to the power supply end of the MCU, and is used to convert the voltage transmitted by the first preset power supply into the voltage required for the operation of the MCU.

3. The data collector according to claim 2, wherein: The first voltage stabilizing module is a voltage stabilizing diode, the anode of the voltage stabilizing diode is grounded, and the cathode of the voltage stabilizing diode is respectively connected to the output end of the first circuit connector and the power supply end of the power conversion chip.

4. The data collector according to claim 1, wherein: Also includes: An EEPROM storage circuit, wherein an input end of the EEPROM storage circuit is connected to the MCU and is used to store the carbon data; and / or, The FLASH storage circuit has an input end connected to the MCU and a heat dissipation end grounded, and is used to store the carbon data.

5. The data collector according to claim 1, wherein: Also includes: An indicator light circuit, wherein the first end of the indicator light circuit is connected to a second preset power supply, and the second end is connected to the communication connection indicator light drive pin of the MCU, and is used to light up after power is supplied and the MCU is in communication connection with the Star Flash wireless transmission module circuit.

6. The data collector according to claim 1, wherein: Also includes: A crystal oscillator circuit is connected to the clock signal terminal of the MCU and is used to provide a preset clock signal to the MCU.

7. The data collector according to claim 6, wherein: The crystal oscillator circuit includes: a passive crystal, a first load capacitor, and a second load capacitor; The external crystal oscillator input end of the passive crystal is respectively connected to the crystal oscillator positive phase input end of the clock signal of the MCU and the first end of the first load capacitor, and the external crystal oscillator output end is respectively connected to the crystal oscillator negative phase output end of the clock signal of the MCU and the first end of the second load capacitor; The second end of the first load capacitor and the second end of the second load capacitor are both grounded.

8. The data collector according to claim 1, wherein: The carbon data interface circuit comprises: An analog interface circuit, wherein the input end of the analog interface circuit is connected to the current-transmitting instrument signal, and the output end is connected to the MCU, and is used to transmit the collected current-transmitting instrument signal to the MCU; and / or, An RS485 interface circuit, wherein the input end of the RS485 interface circuit is connected to the RS485 interface instrument signal, and the output end is connected to the MCU, and is used to transmit the collected RS485 interface instrument signal to the MCU; and / or, An RS232 interface circuit, wherein the input end of the RS232 interface circuit is connected to the RS232 interface instrument signal, and the output end is connected to the MCU, and is used to transmit the collected RS232 interface instrument signal to the MCU.

9. The data collector according to claim 8, wherein: The analog interface circuit includes: a second circuit connector, a second voltage stabilization module, a first filtering module, and a voltage follower circuit; The input end of the second circuit connector is connected to the third preset power supply, the output end is connected to the first end of the second voltage stabilizing module, and the signal input end is connected to the signal of the current-transmitting instrument; The second end of the second voltage stabilizing module is grounded; The input end of the first filtering module is connected to the output end of the second circuit connector and the first end of the second voltage stabilizing module respectively, and the output end is connected to the positive input end of the voltage follower circuit; The negative input terminal of the voltage follower circuit is connected to the output terminal of the voltage follower circuit and the MCU respectively.

10. The data collector according to claim 1, wherein: The star flash wireless transmission module circuit also includes: a pull-up resistor and a pull-down resistor; The first end of the pull-up resistor is connected to the first debugging end of the Star Flash chip, and the second end is connected to the fifth preset power supply; The first end of the pull-down resistor is connected to the second debugging end of the Star Flash chip, and the second end is connected to the ground.

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