CN117826569A - Beidou automatic time synchronization clock device - Google Patents

Abstract

The invention particularly relates to a Beidou automatic time-setting clock device which comprises a display screen and an ARM single chip microcomputer which are electrically connected, wherein a clock chip and a receiving module which are mutually and electrically connected are configured on the ARM single chip microcomputer, the clock chip is an R8025 series chip, the receiving module is an AT6558 series chip, the receiving module is used for receiving satellite signals, analyzing and displaying time, altitude and longitude and latitude information of received Beidou BDS data, and the clock chip is used for communicating with the receiving module to ensure clock unification and synchronization, automatically correcting local time and supporting global time zone setting.

Description

Beidou automatic time synchronization clock device

Technical Field

The invention belongs to the field of communications, and in particular relates to a Beidou automatic time synchronization clock device.

Background technique

An automatic time-synchronizing clock is an intelligent clock that can automatically calibrate the time to ensure the accuracy of the time. The principle of this clock is to automatically obtain the standard time signal by receiving wireless signals or connecting to the network, and then calibrate the clock to keep it synchronized with the standard time. There is no automatic time-synchronizing clock with complete functions and comprehensive information in the prior art.

Summary of the invention

The object of the present invention is to provide a Beidou automatic time synchronization clock device to solve the problems raised in the above background technology.

In order to solve the above technical problems, the present invention provides the following technical solutions:

The Beidou automatic time-synchronizing clock device comprises an electrically connected display screen and an ARM single-chip computer. The ARM single-chip computer is provided with a clock chip and a receiving module electrically connected to each other. The model of the clock chip is an R8025 series chip, and the model of the receiving module is an AT6558 series chip. The receiving module is used to receive satellite signals, parse the received Beidou BDS data and display the time, altitude, longitude and latitude information. The clock chip is used to communicate with the receiving module to ensure the clock is unified and synchronized, and automatically correct the local time, and support global time zone settings.

Furthermore, the model of the ARM single chip microcomputer is STM32F1.

Furthermore, the configuration steps between the STM32F1 microcontroller and the R8025 clock chip include:

Initialize the clock and I/O ports of the STM32F1 microcontroller to communicate with the R8025 clock chip;

Set the communication parameters of the R8025 clock chip, including clock frequency, number of data bits, number of stop bits, parity check, etc.

Send a signal to start transmission to the R8025 clock chip through the I/O port of the STM32F1 microcontroller;

After the R8025 clock chip receives the signal to start the transmission, it sends a response signal to the STM32F1 microcontroller to confirm that the communication connection has been established;

Then, the STM32F1 microcontroller can send data or commands to the R8025 clock chip through the I/O port;

After receiving the data or command, the R8025 clock chip will process it and return the result or status information to the STM32F1 microcontroller;

After receiving the result or status information, the STM32F1 microcontroller takes corresponding actions to update the display content or control other peripherals;

Repeat the above steps to achieve continuous communication between the STM32F1 microcontroller and the R8025 clock chip.

Further, the configuration steps between the STM32F1 microcontroller and the AT6558 receiving module include:

Initialize the clock and I/O ports of the STM32F1 microcontroller to communicate with the AT6558 receiver module;

Set the communication parameters of the AT6558 receiving module, including clock frequency, number of data bits, number of stop bits, and parity check;

Send a signal to start transmission to the AT6558 receiving module through the I/O port of the STM32F1 microcontroller;

After the AT6558 receiving module receives the signal to start the transmission, it will send a response signal to the STM32F1 microcontroller to confirm that the communication connection has been established;

Then, the STM32F1 microcontroller can send data or commands to the AT6558 receiving module through the I/O port;

After receiving the data or command, the AT6558 receiving module will process it and return the result or status information to the STM32F1 microcontroller;

After receiving the result or status information, the STM32F1 MCU can take corresponding actions, such as updating the display content or controlling other peripherals;

Repeat the above steps to achieve continuous communication between the STM32F1 microcontroller and the AT6558 receiving module.

Furthermore, the configuration steps between the R8025 series clock chip and the AT6558 series receiving module include:

Initialize the communication interface of the R8025 series clock chip and the AT6558 series receiving module, including setting the communication clock, data bit number, stop bit number, and parity check;

Send a start transmission signal to the AT655 receiving module through the R8025 clock chip to start the communication connection;

After receiving the start transmission signal, the R8025 receiving module sends a response signal to the AT655 clock chip to confirm that the communication connection has been established;

The R8025 clock chip sends data or commands to the AT655 receiving module;

After receiving the data or command, the AT655 receiving module processes it and returns the result or status information to the clock chip;

After receiving the result or status information, the R8025 clock chip can take corresponding actions, such as updating the display content or controlling other peripherals;

Repeat the above steps to achieve continuous communication between the R8025 clock chip and the AT655 receiving module.

Furthermore, the communication between the R8025 series clock chip and the AT6558 series receiving chip is realized through the I2C interface. The clock chip and the receiving chip communicate through the I2C interface. Follow the steps below: Confirm that both chips support the I2C interface and their I2C addresses are different;

Connect the I2C interfaces of the two chips together, including connecting the clock line (SCL) and the data line (SDA) together;

Configure the address and other parameters of the I2C interface in the R8025 series clock chip so that it can communicate with other devices through the I2C interface;

Configure the address and other parameters of the I2C interface in the AT6558 series receiving chip so that it can receive data from the clock chip;

Use a programming language to write code to set the time in a clock chip of the R8025 series and to read data in a receiver chip of the AT6558 series.

Further, to make the R8025 series clock chip communicate with the AT6558 series receiving chip through the SPI interface, follow the steps below: confirm that both chips support the SPI interface and they are equipped with SPI interface pins;

Connect the SPI interfaces of the two chips together, including connecting the clock line (SCK), data input line (MISO) and data output line (MOSI) together;

Configure the clock frequency, data bit number and other parameters of the SPI interface in the clock chip so that it can communicate with other devices through the SPI interface;

Configure the clock frequency, data bit number and other parameters of the SPI interface in the receiving chip so that it can receive data from the clock chip;

Use a programming language to write code to set the time in the clock chip and read the data in the receiving chip.

Beneficial effects: This device uses a liquid crystal display screen, is driven by a 32-bit ARM single-chip microcomputer, and the clock chip uses an R8025 series chip with temperature compensation function; this Beidou BDS automatic time synchronization device uses the integrated receiving module of the Zhongkewei AT6558 series, which supports a variety of satellite systems; open areas can generally receive signals from about 20 satellites, and the receiving antenna can be extended indoors to the outdoors; after receiving valid Beidou BDS data, this device can parse and display time, altitude, longitude and latitude and other information; after receiving Beidou data, it is connected to the system through the serial port to ensure clock unification and synchronization; this device can automatically correct the local time and support global time zone settings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a system connection block diagram of the Beidou automatic time synchronization clock device of the present application.

Detailed ways

The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

The present application discloses a Beidou automatic time synchronization clock device, as shown in Figure 1, including an electrically connected display screen and an ARM single-chip microcomputer, the ARM single-chip microcomputer is configured with a clock chip and a receiving module electrically connected to each other, the model of the clock chip is the R8025 series chip, the R8025 series chip is a real-time clock chip with a built-in 32.768kHz DTCXO (digital temperature compensated crystal oscillator), high stability, and an I2C bus interface. The chip has a temperature compensation function, and by setting the corresponding compensation control bit, temperature compensation at different intervals can be achieved, thereby greatly improving the accuracy of the clock. Under the default setting, the chip can achieve 2S compensation. In addition, the R8025 series chip has extremely low functional consumption and can be powered by batteries for a long time.

The interface voltage range of the R8025 series chip is 1.8V to 5.5V, the temperature compensation voltage range is 2.2V to 5.5V, and the wide timer voltage range is 1.6V to 5.5V. The clock function of the chip can set and read out the month, day, day, hour, minute, and second, and has a periodic interrupt function and an alarm function. The periodic interrupt function can be output through the /INTA pin, with two output waveforms: a normal pulse waveform (2Hz or 1Hz) or a CPU-level interrupt waveform (per second, minute, hour, or month). The alarm function has two types (Alarm W and Alarm D), which can output an interrupt signal to the host at a preset time.

In short, the R8025 series chip is a real-time clock chip suitable for various occasions requiring high-precision clocks. It has the characteristics of temperature compensation, low power consumption, multiple interrupt and alarm functions, etc.

The model of the receiving module is the AT6558 series chip, which is a high-performance BDS/GNSS multi-mode satellite navigation receiver SOC single chip, using 55nm CMOS technology, integrating RF front-end, digital baseband processor, 32-bit RISC CPU and power management function on chip. The chip has the characteristics of high sensitivity, fast positioning accuracy and first positioning time, low power consumption and small size.

AT6558 series chips support a variety of satellite navigation systems, including China's BDS (Beidou Satellite Navigation System), the United States' GPS, Russia's GLONASS, the European Union's GALILEO, Japan's QZSS and satellite augmentation systems SBAS (WAAS, EGNOS, GAGAN, MSAS). It is a true six-in-one multi-mode satellite navigation single chip that can simultaneously receive GNSS signals from six satellite navigation systems and achieve joint positioning, navigation and timing.

The receiving module is used to receive satellite signals, parse the received Beidou BDS data and display the time, altitude, longitude and latitude information. The clock chip is used to communicate with the receiving module to ensure the clock is unified and synchronized, and automatically correct the local time, supporting global time zone settings.

Furthermore, the model of the ARM single chip microcomputer is STM32F1. This is a 32-bit microcontroller based on the ARMCortex-M3 core launched by ST, which has rich peripherals and functional modules and can meet the needs of various application scenarios.

In a preferred embodiment, the configuration steps between the STM32F1 microcontroller and the clock chip include:

Initialize the clock and I/O ports of the STM32F1 microcontroller to communicate with the clock chip;

Set the communication parameters of the clock chip, including clock frequency, number of data bits, number of stop bits, parity check, etc.

Send a signal to start transmission to R8025T through the I/O port of the STM32F1 microcontroller;

After the clock chip receives the signal to start the transmission, it sends a response signal to the STM32F1 microcontroller to confirm that the communication connection has been established;

Then, the STM32F1 microcontroller can send data or commands to the clock chip through the I/O port;

After receiving the data or command, the clock chip will process it and return the result or status information to the STM32F1 microcontroller;

After receiving the result or status information, the STM32F1 microcontroller takes corresponding actions to update the display content or control other peripherals;

Repeat the above steps to achieve continuous communication between the STM32F1 microcontroller and the clock chip.

In a preferred embodiment, the configuration steps between the STM32F1 microcontroller and the receiving module AT6558 include:

Initialize the clock and I/O ports of the STM32F1 microcontroller to communicate with the receiving module;

Set the communication parameters of AT6558, including clock frequency, number of data bits, number of stop bits, and parity check;

Send a signal to start transmission to the receiving module through the I/O port of the STM32F1 microcontroller;

After the receiving module receives the signal to start the transmission, it will send a response signal to the STM32F1 microcontroller to confirm that the communication connection has been established;

Then, the STM32F1 microcontroller can send data or commands to the receiving module through the I/O port;

After receiving the data or command, the receiving module will process it and return the result or status information to the STM32F1 microcontroller;

After receiving the result or status information, the STM32F1 MCU can take corresponding actions, such as updating the display content or controlling other peripherals;

Repeat the above steps to achieve continuous communication between the STM32F1 microcontroller and the receiving module.

In a preferred embodiment, the configuration steps between the R8025 series clock chip and the AT6558 series receiving module include:

Initialize the communication interface between the clock chip and the receiving module, including setting the communication clock, data bit number, stop bit number, and parity check;

Sending a transmission start signal to the receiving module via the clock chip to start the communication connection;

After receiving the start transmission signal, the receiving module sends a response signal to the clock chip to confirm that the communication connection has been established;

The clock chip sends data or commands to the receiving module;

After receiving the data or command, the receiving module processes it and returns the result or status information to the clock chip;

After receiving the result or status information, the clock chip can take corresponding actions, such as updating the display content or controlling other peripherals;

Repeating the above steps can achieve continuous communication between the clock chip and the receiving module.

In a preferred embodiment, the communication between the clock chip of R8025 and the receiving chip of AT6558 is realized through the I2C interface. The clock chip of R8025 communicates with the receiving chip of AT6558 through the I2C interface, and the operation is performed according to the following steps: confirm that both chips support the I2C interface and their I2C addresses are different;

Connect the I2C interfaces of the two chips together, including connecting the clock line (SCL) and the data line (SDA) together;

Configure the address and other parameters of the I2C interface in the clock chip of R8025 so that it can communicate with other devices through the I2C interface;

Configure the address and other parameters of the I2C interface in the AT6558 receiving chip so that it can receive data from the R8025 clock chip;

Write code using a programming language (such as C or assembly language) to set the time in the R8025 clock chip and read data in the AT6558 receiver chip.

In a preferred embodiment, the clock chip of R8025 communicates with the receiving chip of AT6558 via the SPI interface, and the following steps are performed: confirm that both chips support the SPI interface and that they are equipped with SPI interface pins;

Connect the SPI interfaces of the two chips together, including connecting the clock line (SCK), data input line (MISO) and data output line (MOSI) together;

Configure the clock frequency, data bit number and other parameters of the SPI interface in the clock chip of R8025 so that it can communicate with other devices through the SPI interface;

Configure the clock frequency, data bit number and other parameters of the SPI interface in the AT6558 receiving chip so that it can receive data from the R8025 clock chip;

Write code using a programming language (such as C or assembly language) to set the time in the R8025 clock chip and read data in the AT6558 receiver chip.

This device uses a liquid crystal display screen, is driven by a 32-bit ARM single-chip microcomputer, and the clock chip uses an R8025 chip with temperature compensation function; this Beidou BDS automatic time synchronization device uses the integrated receiving module of Zhongkewei AT6558, which supports multiple satellite systems; open areas can generally receive signals from about 20 satellites, and the receiving antenna can be extended indoors to the outdoors; after receiving valid Beidou BDS data, this device can parse and display time, altitude, longitude and latitude and other information; after receiving Beidou data, it is connected to the system through the serial port to ensure that the clock is unified and synchronized; this device can automatically correct the local time and support global time zone settings.

In an embodiment that needs to be protected, the present invention provides a Beidou automatic time-synchronizing clock device, including an electrically connected display screen and an ARM single-chip microcomputer, the ARM single-chip microcomputer is configured with a clock chip and a receiving module that are electrically connected to each other, the model of the clock chip is a clock chip of the R8025 series, the model of the receiving module is a chip of the AT6558 series, the receiving module is used to receive satellite signals, parse the received Beidou BDS data and display the time, altitude, longitude and latitude information, the clock chip is used to communicate with the receiving module to ensure clock unification and synchronization, and automatically correct the local time, supporting global time zone settings.

Preferably, the model of the ARM single chip microcomputer is STM32F1.

Preferably, the configuration steps between the STM32F1 single chip microcomputer and the clock chip R8025 include:

Initialize the clock and I/O ports of the STM32F1 microcontroller to communicate with the clock chip of the R8025;

Set the communication parameters of the R8025 clock chip, including clock frequency, number of data bits, number of stop bits, parity check, etc.

Send a signal to start transmission to the clock chip of R8025 through the I/O port of the STM32F1 microcontroller;

After the R8025 clock chip receives the signal to start the transmission, it sends a response signal to the STM32F1 microcontroller to confirm that the communication connection has been established;

Then, the STM32F1 microcontroller can send data or commands to the R8025 clock chip through the I/O port;

After receiving the data or command, the R8025 clock chip will process it and return the result or status information to the STM32F1 microcontroller;

After receiving the result or status information, the STM32F1 MCU takes corresponding actions to update the display content or control other peripherals;

Repeat the above steps to achieve continuous communication between the STM32F1 microcontroller and the R8025 clock chip.

Preferably, the configuration steps between the STM32F1 single chip microcomputer and the receiving module AT6558 receiving module include:

Initialize the clock and I/O ports of the STM32F1 microcontroller to communicate with the AT6558 receiver module;

Set the communication parameters of the AT6558 receiving module, including clock frequency, number of data bits, number of stop bits, and parity check;

Send a signal to start transmission to the AT6558 receiving module through the I/O port of the STM32F1 microcontroller;

After AT6558 receives the signal to start the transmission, it sends a response signal to the STM32F1 microcontroller to confirm that the communication connection has been established;

Then, the STM32F1 microcontroller can send data or commands to the AT6558 receiving module through the I/O port;

After receiving the data or command, the AT6558 receiving module will process it and return the result or status information to the STM32F1 microcontroller;

After receiving the result or status information, the STM32F1 MCU can take corresponding actions, such as updating the display content or controlling other peripherals;

Repeat the above steps to achieve continuous communication between the STM32F1 microcontroller and the AT6558 receiving module.

Preferably, the configuration steps between the R8025 series clock chip and the AT6558 receiving module include:

Initialize the communication interface between the R8025 clock chip and the AT6558 receiving module, including setting the communication clock, number of data bits, number of stop bits, and parity check;

Send a start transmission signal to the AT6558 receiving module through the R8025 clock chip to start the communication connection;

After receiving the start transmission signal, AT6558 sends a response signal to the R8025 clock chip to confirm that the communication connection has been established;

The R8025 clock chip sends data or commands to AT6558;

After receiving the data or command, AT6558 processes it and returns the result or status information to the R8025 clock chip;

After receiving the result or status information, the R8025 clock chip can take corresponding actions, such as updating the display content or controlling other peripherals;

Repeat the above steps to achieve continuous communication between the R8025 clock chip and the AT6558 receiving module.

Preferably, the communication between the R8025 clock chip and the AT6558 receiving chip is realized through the I2C interface, and the R8025 clock chip communicates with the AT6558 receiving chip through the I2C interface, and the following steps are performed: confirm that both chips support the I2C interface and their I2C addresses are different;

Connect the I2C interfaces of the two chips together, including connecting the clock line (SCL) and the data line (SDA) together;

Configure the address and other parameters of the I2C interface in the R8025 series clock chip so that it can communicate with other devices through the I2C interface;

Configure the address and other parameters of the I2C interface in the AT6558 series receiving chip so that it can receive data from the R8025T clock chip;

Write code using a programming language to set the time in the R8025 clock chip and read data in the AT6558 receiver chip.

Preferably, the R8025 clock chip communicates with the AT6558 receiving chip via the SPI interface, and the following steps are performed: confirm that both chips support the SPI interface and that they are both equipped with SPI interface pins;

Connect the SPI interfaces of the two chips together, including connecting the clock line (SCK), data input line (MISO) and data output line (MOSI) together;

Configure the clock frequency, data bit number and other parameters of the SPI interface in the clock chip of the R8025 series so that it can communicate with other devices through the SPI interface;

Configure the clock frequency, data bit number and other parameters of the SPI interface in the AT6558 receiving chip so that it can receive data from the R8025 clock chip;

Use a programming language to write code to set the time in the R8025 series clock chip and read data in the AT6558 receiver chip.

It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. The above disclosed embodiments are only illustrative in all respects, and not all changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims (7)

1. Beidou automatic time synchronization clock device, characterized in that it includes an electrically connected display screen and an ARM single-chip microcomputer, the ARM single-chip microcomputer is configured with a clock chip and a receiving module electrically connected to each other, the clock chip is of the R8025 series, the receiving module is of the AT6558 series, the receiving module is used to receive satellite signals, parse the received Beidou BDS data and display the time, altitude, longitude and latitude information, the clock chip is used to communicate with the receiving module to ensure the clock is unified and synchronized, and automatically correct the local time, and support global time zone settings. 2. The Beidou automatic time synchronization clock device according to claim 1, characterized in that the model of the ARM single-chip microcomputer is STM32F1. 3. The Beidou automatic time synchronization clock device according to claim 2 is characterized in that the configuration steps between the STM32F1 single-chip microcomputer and the clock chip include: Initialize the clock and I/O ports of the STM32F1 microcontroller to communicate with the clock chip of the R8025 series; Set the communication parameters of R8025T, including clock frequency, number of data bits, number of stop bits, parity check, etc. Send a signal to start transmission to the R8025 clock chip through the I/O port of the STM32F1 microcontroller; After the R8025 clock chip receives the signal to start the transmission, it sends a response signal to the STM32F1 microcontroller to confirm that the communication connection has been established; Then, the STM32F1 microcontroller can send data or commands to the R8025 clock chip through the I/O port; After receiving the data or command, the R8025 clock chip will process it and return the result or status information to the STM32F1 microcontroller; After receiving the result or status information, the STM32F1 MCU takes corresponding actions to update the display content or control other peripherals; Repeat the above steps to achieve continuous communication between the STM32F1 microcontroller and the R8025 clock chip. 4. The Beidou automatic time synchronization clock device according to claim 2 is characterized in that the configuration steps between the STM32F1 single chip microcomputer and the receiving module AT6558 include: Initialize the clock and I/O ports of the STM32F1 microcontroller to communicate with the receiver module of the AT6558 series; Set the communication parameters of the AT6558 series receiving module, including clock frequency, number of data bits, number of stop bits, and parity check; Send a signal to start transmission to the AT6558 receiving module through the I/O port of the STM32F1 microcontroller; After the AT6558 receiving module receives the signal to start the transmission, it will send a response signal to the STM32F1 microcontroller to confirm that the communication connection has been established; Then, the STM32F1 microcontroller can send data or commands to the AT6558 receiving module through the I/O port; After receiving data or commands, the AT6558 receiving module will process them and return the results or status information to the STM32F1 microcontroller; After receiving the result or status information, the STM32F1 MCU can take corresponding actions, such as updating the display content or controlling other peripherals; Repeat the above steps to achieve continuous communication between the STM32F1 microcontroller and the AT6558 receiving module. 5. The Beidou automatic time synchronization clock device according to claim 1 is characterized in that the configuration steps between the R8025 clock chip and the AT6558 receiving module include: Initialize the communication interface between the R8025 clock chip and the AT6558 receiving module, including setting the communication clock, number of data bits, number of stop bits, and parity check; Send a start transmission signal to AT6558 via R8025 to start the communication connection; After receiving the start transmission signal, AT6558 sends a response signal to the R8025 clock chip to confirm that the communication connection has been established; The R8025 clock chip sends data or commands to the AT6558 receiving module; After receiving the data or command, the AT6558 receiving module processes it and returns the result or status information to the clock chip; After receiving the result or status information, the R8025 clock chip can take corresponding actions, such as updating the display content or controlling other peripherals; Repeat the above steps to achieve continuous communication between the R8025 series clock chip and the AT6558 series receiving module. 6. The Beidou automatic time synchronization clock device according to claim 2, characterized in that the communication between the clock chip and the receiving chip is realized through an I2C interface, and the clock chip and the receiving chip communicate through the I2C interface, and the operation is performed according to the following steps: confirm that both chips support the I2C interface and their I2C addresses are different; Connect the I2C interfaces of the two chips together, including connecting the clock line (SCL) and the data line (SDA) together; Configure the address and other parameters of the I2C interface in the clock chip so that it can communicate with other devices through the I2C interface; Configure the address and other parameters of the I2C interface in the receiving chip so that it can receive data from the clock chip; Use a programming language to write code to set the time in the clock chip and read the data in the receiving chip. 7. The Beidou automatic time synchronization clock device according to claim 1 is characterized in that the clock chip and the receiving chip communicate through the SPI interface, and the operation is performed according to the following steps: confirm that both chips support the SPI interface and are equipped with SPI interface pins; Connect the SPI interfaces of the two chips together, including connecting the clock line (SCK), data input line (MISO) and data output line (MOSI) together; Configure the clock frequency, data bit number and other parameters of the SPI interface in the clock chip so that it can communicate with other devices through the SPI interface; Configure the clock frequency, data bit number and other parameters of the SPI interface in the receiving chip so that it can receive data from the clock chip; Use a programming language to write code to set the time in the clock chip and read the data in the receiving chip.