Wireless transmission system of pulse per second signal

Abstract

The utility model discloses a wireless transmission system for pulse per second signals, and relates to the technical field of wireless transmission, and the system comprises at least one wireless transmitting device and a plurality of wireless receiving devices paired with the wireless transmitting device. Wherein the wireless transmitting device comprises a first data interface module, a first processor, a signal modulation module and a transmitting antenna which are connected in sequence; the first data interface module comprises a first network unit and a first interface conversion unit; the wireless receiving device comprises a second data interface module, a second processor, a signal demodulation module and a receiving antenna which are connected in sequence; the second data interface module comprises a second network unit and a second interface conversion unit; and the wireless transmitting device is connected with the receiving antenna of the wireless receiving device through the transmitting antenna. According to the utility model, pairing of one wireless transmitting device and a plurality of wireless receiving devices is supported, and pulse per second signals can be transmitted to a plurality of devices in a larger range or at the same time.

Description

Technical Field

[0001] The present application relates to the field of wireless transmission technology, and more specifically, to a wireless transmission system for pulse-per-second signals. Background Art

[0002] Due to the accuracy and openness of the Beidou and GPS timing systems, their applications have played an increasingly important role in the Internet of Things, especially when transmitting clock data and business data. These data need to be transmitted from the sender to the receiver in a timely manner. Therefore, a fast transmission system is needed to complete the transmission of these data.

[0003] In the prior art, the clock synchronization technology of wired networks is relatively mature and has high time synchronization accuracy. The transmission of synchronized second pulses usually involves pulling a very long cable between the data sending end and the data receiving end, and transmitting clock data and business data between the data sending end and the data receiving end through the wired cable.

[0004] However, in some application scenarios of clock and business data transmission, it is not suitable to directly lay a cable between the data sending end and the data receiving end because the data sending end and the data receiving end are far apart or there are obstacles between the data sending end and the data receiving end. Utility Model Content

[0005] In response to at least one defect or improvement need in the prior art, the utility model provides a wireless transmission system for second pulse signals, which is used to solve the problem in the prior art that it is not suitable to lay a cable between the data sending end and the data receiving end because the data sending end and the data receiving end are far apart or there are obstacles between the data sending end and the data receiving end.

[0006] To achieve the above-mentioned object, according to a first aspect of the utility model, a wireless transmission system of a pulse-per-second signal is provided, comprising: at least one wireless transmitting device and a plurality of wireless receiving devices paired with the wireless transmitting device;

[0007] The wireless transmission device includes a first data interface module, a first processor, a signal modulation module and a transmission antenna connected in sequence; the first data interface module includes a first network unit and a first interface conversion unit; the first network unit is used to receive a second pulse signal and a configuration instruction sent by an external device or network; the first interface conversion unit is used to convert input signals of different formats or protocols into a format recognizable by the first processor;

[0008] The wireless receiving device includes a second data interface module, a second processor, a signal demodulation module and a receiving antenna connected in sequence; the second data interface module includes a second network unit and a second interface conversion unit;

[0009] The wireless transmitting device is connected to the receiving antenna of the wireless receiving device via the transmitting antenna;

[0010] The signal modulation module includes a radio frequency modulator, a power amplifier and a filter; the radio frequency modulator, the power amplifier and the filter are connected in sequence; the radio frequency modulator is CMX993WQ3;

[0011] The signal demodulation module includes a radio frequency demodulator, a low noise amplifier and a mixer; the radio frequency demodulator, the low noise amplifier and the mixer are connected in sequence; the radio frequency demodulator is ADRF6801ACPZ-R7.

[0012] In a possible implementation manner, the first processor is connected to the first interface conversion unit through a serial port.

[0013] In a possible implementation manner, the first processor is connected to the first network unit through an RGMII interface.

[0014] In a possible implementation manner, the first processor is connected to the signal modulation module via a USB interface.

[0015] In a possible implementation manner, the signal modulation module is connected to the transmitting antenna via a coaxial cable.

[0016] In a possible implementation manner, the second processor is connected to the second interface conversion unit via a serial port.

[0017] In a possible implementation manner, the second processor is connected to the second network unit through an RGMII interface.

[0018] In a possible implementation manner, the second processor is connected to the signal demodulation module via a USB interface.

[0019] In a possible implementation manner, the signal demodulation module is connected to the receiving antenna via a coaxial cable.

[0020] In a possible implementation, the wireless transmission device further includes a first power supply module, and the first power supply module is respectively connected to the first data interface module, the first processor, and the signal modulation module;

[0021] The wireless receiving device also includes a second power supply module, which is respectively connected to the second data interface module, the second processor and the signal demodulation module.

[0022] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0023] (1) The utility model provides a wireless transmission system for pulse-second signals, which directly connects a wireless transmitting device and a wireless receiving device wirelessly through a transmitting antenna and a receiving antenna, thereby avoiding the wiring complexity that may be caused by a wired connection, getting rid of the limitations of application scenarios that are not suitable for wiring, and improving the deployment efficiency and flexibility of the system. In addition, the wireless transmission system supports pairing a wireless transmitting device with multiple wireless receiving devices, and can adapt to scenarios with a large coverage area or sending pulse-second signals to multiple devices at the same time.

[0024] (2) The utility model provides a wireless transmission system for second pulse signals. Through the first and second interface conversion units, the system can adapt to a variety of different types of interfaces, so that the system can be easily integrated into various existing devices and networks, further enhancing its flexibility and compatibility. The use of signal modulation modules and signal demodulation modules ensures the stability and reliability of second pulse signals during wireless transmission. The modulation process converts the original signal into a form suitable for wireless transmission, while the demodulation process restores the original signal, reducing signal distortion and interference during transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A schematic structural diagram of an embodiment of a wireless transmitting device and a wireless receiving device in a wireless transmission system of a pulse-per-second signal provided by the utility model;

[0027] Figure 2 A schematic diagram of the networking of an embodiment of a wireless transmission system of pulse-per-second signals provided by the utility model applied to a vehicle formation. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0029] The terms "first", "second", "third", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally includes other steps or units inherent to these processes, methods, products or devices.

[0030] See also Figure 1 , Figure 1 The present invention is a schematic structural diagram of an embodiment of a wireless transmission device 100 and a wireless receiving device 200 in a wireless transmission system of a second pulse signal provided by the present invention. In a specific embodiment of the present invention, a wireless transmission system of a second pulse signal is disclosed, including: at least one wireless transmission device 100 and a plurality of wireless receiving devices 200 paired with the wireless transmission device 100;

[0031] The wireless transmitting device 100 includes a first data interface module 110, a first processor 120, a signal modulation module 130 and a transmitting antenna 140 connected in sequence; the first data interface module 110 includes a first network unit 111 and a first interface conversion unit 112;

[0032] The wireless receiving device 200 includes a second data interface module 210, a second processor 220, a signal demodulation module 230 and a receiving antenna 240 connected in sequence; the second data interface module 210 includes a second network unit 211 and a second interface conversion unit 212;

[0033] The wireless transmission device 100 is connected to the reception antenna 240 of the wireless reception device 200 via the transmission antenna 140 .

[0034] In the above embodiment, the first network unit 111 supports multiple network communication protocols such as Ethernet, Wi-Fi, Zigbee, etc., and is used to receive pulse-per-second signals and configuration instructions sent by external devices or networks. The first interface conversion unit 112 converts input signals of different formats or protocols into a format recognizable by the first processor 120, such as converting serial port signals such as RS232 and RS485 into TTL level signals.

[0035] The first processor 120 is the core control unit of the system, responsible for data processing, signal coding, communication protocol control, etc. It supports high-speed computing and ensures the real-time and accuracy of signal processing. The signal modulation module 130 modulates the digital signal output by the first processor 120 into an analog signal suitable for wireless transmission or a carrier signal of a specific frequency to enhance the signal's anti-interference ability and transmission distance. The transmitting antenna 140 transmits the modulated signal in the form of electromagnetic waves, supports directional or omnidirectional radiation, and selects the antenna type according to application requirements. The first power supply module provides a stable and reliable power supply, supports wide voltage input, and has overvoltage and overcurrent protection functions to ensure long-term stable operation of the system. The signal modulation module includes an RF modulator, a power amplifier, and a filter; the RF modulator, the power amplifier, and the filter are connected in sequence; the RF modulator is CMX993WQ3.

[0036] The second data interface module 210 corresponds to the transmitting end and is responsible for receiving the demodulated signal and converting it into a format recognizable by the external device. The second processor 220 performs similar signal processing tasks as the transmitting end, but focuses on signal decoding, synchronization extraction, etc. The signal demodulation module 230 demodulates the analog signal or carrier signal captured by the receiving antenna 240 back to the original digital signal. The receiving antenna 240 efficiently receives the electromagnetic wave signal emitted by the transmitting end, supports adaptive gain control, and improves the receiving sensitivity. The second power supply module also provides a stable power supply to ensure the normal operation of each module at the receiving end. The signal demodulation module includes a radio frequency demodulator, a low noise amplifier and a mixer; the radio frequency demodulator, the low noise amplifier and the mixer are connected in sequence; the radio frequency demodulator is ADRF6801ACPZ-R7.

[0037] Compared with the prior art, the present embodiment provides a wireless transmission system for pulse-second signals, which directly wirelessly connects a wireless transmitting device 100 and a wireless receiving device 200 through a transmitting antenna 140 and a receiving antenna 240, thereby avoiding the wiring complexity that may be caused by a wired connection, getting rid of the limitations of application scenarios that are not suitable for wiring, and improving the deployment efficiency and flexibility of the system. The wireless transmission system supports pairing a wireless transmitting device 100 with multiple wireless receiving devices 200, and can adapt to scenarios with a large coverage area or sending pulse-second signals to multiple devices at the same time.

[0038] The utility model provides a wireless transmission system for pulse-second signals. Through the first and second interface conversion units 212, the system can adapt to a variety of different types of interfaces, so that the system can be easily integrated into various existing devices and networks, further enhancing its flexibility and compatibility. The use of the signal modulation module 130 and the signal demodulation module 230 ensures the stability and reliability of the pulse-second signal during wireless transmission. The modulation process converts the original signal into a form suitable for wireless transmission, and the demodulation process restores the original signal, reducing the distortion and interference of the signal during transmission.

[0039] In some embodiments of the present invention, the first processor 120 is connected to the first interface conversion unit 112 via a serial port.

[0040] In the above embodiment, the first processor 120 is closely connected to the first interface conversion unit 112 through a standard serial port (such as RS-232 or RS-485). This connection method ensures that external devices (such as PLC, computer, etc.) can transmit data with the sending device through a variety of serial communication protocols, thereby improving the compatibility and flexibility of the system.

[0041] In some embodiments of the present invention, the first processor 120 is connected to the first network unit 111 through an RGMII interface.

[0042] In the above embodiment, through the RGMII (Reduced Gigabit Media Independent Interface) interface, the first processor 120 and the first network unit 111 achieve high-speed and reliable network connection. The RGMII interface supports Gigabit Ethernet communication, provides strong support for the remote transmission of second pulse signals or other control instructions, and ensures the real-time and accuracy of the data.

[0043] In some embodiments of the present invention, the first processor 120 is connected to the signal modulation module 130 via a USB interface.

[0044] In the above embodiment, the first processor 120 is connected to the signal modulation module 130 via a USB interface. This connection method not only has a fast transmission speed, but also has a plug-and-play feature, which simplifies the installation and debugging process of the system. The signal modulation module 130 is responsible for converting the digital signal output by the processor into an analog signal or radio frequency signal suitable for wireless transmission.

[0045] In some embodiments of the present invention, the signal modulation module 130 is connected to the transmitting antenna 140 via a coaxial cable.

[0046] In the above embodiment, in order to ensure efficient transmission of the signal, the signal modulation module 130 is connected to the transmitting antenna 140 through a high-quality coaxial cable. The coaxial cable has excellent anti-interference ability and low loss characteristics, which can ensure that the modulated signal remains stable during transmission and reduce signal attenuation and distortion.

[0047] In some embodiments of the present invention, the second processor 220 is connected to the second interface conversion unit 212 via a serial port.

[0048] In the above embodiment, similar to the sending device, the second processor 220 is also connected to the second interface conversion unit 212 through the serial port to receive instructions or data from the external device. This connection method ensures that the receiving device can seamlessly connect with a variety of external devices.

[0049] In some embodiments of the present invention, the second processor 220 is connected to the second network unit 211 via an RGMII interface.

[0050] In the above embodiment, the RGMII interface is also used, and the second processor 220 and the second network unit 211 realize high-speed network communication, which not only supports remote monitoring and configuration of the receiving device, but also provides convenience for future functional expansion.

[0051] In some embodiments of the present invention, the second processor 220 is connected to the signal demodulation module 230 via a USB interface.

[0052] In the above embodiment, the second processor 220 is connected to the signal demodulation module 230 via a USB interface and is responsible for demodulating the RF signal captured by the receiving antenna 240 back to the original digital signal. This connection method ensures the speed and accuracy of the demodulation process.

[0053] In some embodiments of the present invention, the signal demodulation module 230 is connected to the receiving antenna 240 via a coaxial cable.

[0054] In the above embodiment, the signal demodulation module 230 is closely connected to the receiving antenna 240 via a coaxial cable, ensuring that the received wireless signal can be transmitted to the demodulation module for processing completely and without distortion.

[0055] In some embodiments of the present utility model, the wireless transmission device 100 further includes a first power supply module 150, and the first power supply module 150 is respectively connected to the first data interface module 110, the first processor 120 and the signal modulation module 130;

[0056] The wireless receiving device 200 further includes a second power module 250 , which is connected to the second data interface module 210 , the second processor 220 , and the signal demodulation module 230 , respectively.

[0057] In the above embodiment, in the wireless transmitting device 100, the first power supply module 150 serves as the power source of the entire system, providing a stable and reliable power supply for the first data interface module 110, the first processor 120 and the signal modulation module 130. The first power supply module 150 has overvoltage and overcurrent protection functions, which can ensure the safe operation of the system in various working environments.

[0058] Similarly, the second power module 250 in the wireless receiving device 200 also provides power support for the second data interface module 210, the second processor 220 and the signal demodulation module 230. Its design also focuses on stability and reliability to ensure that the receiving device can work for a long time and uninterruptedly.

[0059] See also Figure 2 , Figure 2 The present invention provides a network diagram of a wireless transmission system for a second pulse signal applied to a vehicle formation. In a specific embodiment of the present invention, a wireless transmitting device 100 is installed in a command vehicle, wherein the wireless transmitting device 100 and a service device on the command vehicle perform two-way data exchange via a wired communication interface (network port or RS422 interface), and a timing device on the command vehicle outputs a second pulse signal to the wireless transmitting device 100 via the RS422 interface. The wireless transmitting device 100 collects the second pulse signal and provides a calculation basis for the wireless receiving device 200 to transmit the second pulse signal by handshaking with the wireless receiving device 200.

[0060] At the same time, the wireless receiving device 200 is installed in other platoon vehicles. On the one hand, the wireless receiving device 200 and the business equipment on the platoon vehicle perform two-way data exchange through the wired communication interface (network port or RS422 interface). On the other hand, it receives the time information sent by the command vehicle and outputs the time information to the time control equipment through the RS422 interface. At the same time, the wireless receiving device 200 performs handshake synchronization with the wireless transmitting device 100 and outputs the wireless receiving device 200-second pulse signal to the time control equipment on the platoon vehicle.

[0061] In summary, the utility model provides a wireless transmission system for second pulse signals, which directly wirelessly connects the wireless transmitting device 100 and the wireless receiving device 200 through the transmitting antenna 140 and the receiving antenna 240, avoiding the wiring complexity that may be caused by the wired connection, getting rid of the limitations of application scenarios that are not suitable for wiring, and improving the deployment efficiency and flexibility of the system. The wireless transmission system supports pairing a wireless transmitting device 100 with multiple wireless receiving devices 200, and can adapt to scenarios with large coverage or sending second pulse signals to multiple devices at the same time.

[0062] The utility model provides a wireless transmission system for pulse-second signals. Through the first and second interface conversion units 212, the system can adapt to a variety of different types of interfaces, so that the system can be easily integrated into various existing devices and networks, further enhancing its flexibility and compatibility. The use of the signal modulation module 130 and the signal demodulation module 230 ensures the stability and reliability of the pulse-second signal during wireless transmission. The modulation process converts the original signal into a form suitable for wireless transmission, and the demodulation process restores the original signal, reducing the distortion and interference of the signal during transmission.

[0063] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0064] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are only schematic, such as the division of the units, which is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some service interfaces, and the indirect coupling or communication connection of devices or units can be electrical or other forms.

[0065] The above is only an exemplary embodiment of the present disclosure, and the scope of the present disclosure cannot be limited thereto. That is, any equivalent changes and modifications made according to the teachings of the present disclosure are still within the scope of the present disclosure. After considering the specification and practicing the disclosure here, those skilled in the art will easily think of the implementation scheme of the present disclosure. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary technical means in the technical field not recorded in the present disclosure. The description and examples are regarded as exemplary only, and the scope and spirit of the present disclosure are defined by the claims.

[0066] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0067] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wireless transmission system for pulse-per-second signals, characterized in that: include: at least one wireless transmitting device and a plurality of wireless receiving devices paired with the wireless transmitting device; The wireless transmission device comprises a first data interface module, a first processor, a signal modulation module and a transmission antenna connected in sequence; the first data interface module comprises a first network unit and a first interface conversion unit; the first network unit is used to receive a second pulse signal and a configuration instruction sent by an external device or network; the first interface conversion unit is used to convert input signals of different formats or protocols into a format recognizable by the first processor; The wireless receiving device comprises a second data interface module, a second processor, a signal demodulation module and a receiving antenna connected in sequence; the second data interface module comprises a second network unit and a second interface conversion unit; The wireless transmitting device is connected to the receiving antenna of the wireless receiving device via the transmitting antenna; The signal modulation module includes a radio frequency modulator, a power amplifier and a filter; the radio frequency modulator, the power amplifier and the filter are connected in sequence; the radio frequency modulator is CMX993WQ3; The signal demodulation module includes a radio frequency demodulator, a low noise amplifier and a mixer; the radio frequency demodulator, the low noise amplifier and the mixer are connected in sequence; the radio frequency demodulator is ADRF6801ACPZ-R7.

2. The wireless transmission system of pulse-per-second signals according to claim 1, characterized in that: The first processor is connected to the first interface conversion unit via a serial port.

3. The wireless transmission system of pulse-per-second signals according to claim 1, characterized in that: The first processor is connected to the first network unit via an RGMII interface.

4. The wireless transmission system of pulse-per-second signals according to claim 1, characterized in that: The first processor is connected to the signal modulation module via a USB interface.

5. The wireless transmission system of pulse-per-second signals according to claim 1, characterized in that: The signal modulation module is connected to the transmitting antenna via a coaxial cable.

6. The wireless transmission system of pulse-per-second signals according to claim 1, characterized in that: The second processor is connected to the second interface conversion unit via a serial port.

7. The wireless transmission system of pulse-per-second signals according to claim 1, characterized in that: The second processor is connected to the second network unit via an RGMII interface.

8. The wireless transmission system of pulse-per-second signals as claimed in claim 1, characterized in that: The second processor is connected to the signal demodulation module via a USB interface.

9. The wireless transmission system of pulse-per-second signals according to claim 1, characterized in that: The signal demodulation module is connected to the receiving antenna via a coaxial cable.

10. The wireless transmission system of pulse-per-second signals according to claim 1, characterized in that: The wireless transmitting device further comprises a first power supply module, wherein the first power supply module is respectively connected to the first data interface module, the first processor and the signal modulation module; The wireless receiving device also includes a second power supply module, and the second power supply module is respectively connected to the second data interface module, the second processor and the signal demodulation module.

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