A method for counting and recording working information of digital T / R components

Abstract

The present invention relates to a method for counting and recording working information applied to a digital T / R component, which is implemented based on the following system: a receiving / transmitting channel, an information acquisition and power-on circuit, a control and processing circuit, and a non-volatile information storage device; during normal operation, the information acquisition and power-on circuit generates a pulse modulation working voltage required by the receiving / transmitting channel, and records relevant working information at the same time, and sends it to the control and processing circuit, and the control and processing circuit simultaneously receives historical working information sent by the non-volatile information storage device, adds the current information and the historical information, and sends them to the non-volatile information storage device for storage. The present invention provides a highly reliable method for counting and recording working information of a digital T / R component by storing working information on the digital T / R component, and then using the characteristics of unlimited reading and writing and no loss of data in case of power failure of nvSRAM, as well as the dual-link information transmission mechanism, which is the basis for realizing the health management of the T / R component.

Description

Technical Field

[0001] The present invention relates to the field of T / R components, and in particular to a method for counting and recording working information of digital T / R components. Background Art

[0002] The digital T / R component is one of the key components of the digital phased array radar, and it mainly performs the following functions: (1) Uplink transmission function, the excitation signal generated by DAC / DDS is sent out after up-conversion, filtering, and amplification; (2) Downlink reception function, the target echo sent by the antenna is amplified, filtered, down-converted, and ADC sampled, and then converted into a digital signal and sent out for further processing by the radar backend. The digital T / R component has complex functions, a large number of internal modules, and requirements for high output power and high power density. It is a complex subsystem covering multiple fields such as mechanical / electrical / thermal. At the same time, the number of T / R components in modern digital phased array radars is large, with hundreds or thousands of T / R components in a single radar. How to accurately grasp the working information of each T / R component, such as the number of startup times, receiving working time, transmitting working time, etc., is the basis for T / R component health management.

[0003] The above working information of traditional T / R components can only be inferred and simply calculated with the help of the working information of the whole machine. This method has the following disadvantages: (1) The statistical data is obtained indirectly and is not accurate enough; (2) It cannot be accurate to each T / R component. Once a component is replaced, it is easy to cause statistical errors. Digital T / R components generally have built-in Flash. The number of power-on times and working hours can be written to the Flash periodically, but the number of Flash erase and write times is generally limited. It is difficult to support the high-frequency erase and write (such as updating every half an hour) of digital T / R components with a working life of 20 years or even longer. Summary of the invention

[0004] In order to solve the existing technical problems, the present invention provides a method for counting and recording working information of a digital T / R component.

[0005] The specific contents of the present invention are as follows: A method for counting and recording working information applied to a digital T / R component is implemented based on the following system: a receiving / transmitting channel, an information collection and power-up circuit, a control and processing circuit, and a non-volatile information storage;

[0006] During normal operation, the information collection and power-on circuit generates the pulse modulation working voltage required by the receiving / transmitting channel, and records the number of power-on times, receiving working time, transmitting working time and other related working information of this power-on, and sends it to the control and processing circuit. The control and processing circuit simultaneously receives the historical working information sent by the non-volatile information memory, adds the current information and the historical information, and sends them to the non-volatile information memory for storage;

[0007] During the query operation, the control and processing circuit receives the query instruction, reads back the historical working information from the non-volatile information storage, and then transmits it to the radar back end through the optical fiber link. At the same time, it is forwarded to the information collection and power-on circuit, and then transmitted to the radar back end for processing through the CAN bus backup.

[0008] Furthermore, the information collection and power-on circuit includes an MCU, which performs pulse modulation on the power supply voltage of the receiving / transmitting channel and sends the current working information to the control and processing circuit through the UART bus.

[0009] Furthermore, the control and processing circuit includes an FPGA, which receives the current working information through a UART bus.

[0010] Furthermore, it also includes a storage capacitor, and the non-volatile information storage includes a nvSRAM chip. During normal operation, data is stored in the SRAM of the nvSRAM chip. When power is off, the energy storage capacitor supplies power to write data from the SRAM to the non-volatile area.

[0011] Furthermore, the nvSRAM chip uses the CY14B256PA chip and uses the SPI bus to exchange data externally.

[0012] Furthermore, the energy storage capacitor uses a 47uF ceramic dielectric capacitor.

[0013] The beneficial effects of the present invention are as follows: by storing working information on a digital T / R component, and by using the unlimited read and write and power-off data non-loss characteristics of nvSRAM, as well as a dual-link information transmission mechanism, a highly reliable method for counting and recording working information of a digital T / R component is provided, which is the basis for realizing health management of the T / R component. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The specific implementation of the present invention will be further explained below in conjunction with the accompanying drawings.

[0015] Figure 1 A block diagram of a method for counting and recording working information applied to digital T / R components. DETAILED DESCRIPTION

[0016] Combination Figure 1 The present invention discloses a working information statistics and recording method applied to a digital T / R component, which is composed of a receiving / transmitting channel 1, an information collection and power-on circuit 2, a control and processing circuit 3, a non-volatile information storage 4 and an energy storage capacitor 5, wherein the receiving / transmitting channel 1 and the information collection and power-on circuit 2 realize working information collection; the control and processing circuit 3 realizes the processing and downloading of the working information of the digital T / R component; the non-volatile information storage 4 and the energy storage capacitor 5 realize the writing and storage of working information when the digital T / R component is turned off.

[0017] During normal operation, the information acquisition and power-on circuit 2 generates the pulse modulated working voltage required by the receiving / transmitting channel 1, and records relevant working information such as the number of power-on times, receiving working time, transmitting working time, etc., and sends it to the control and processing circuit 3; the control and processing circuit 3 simultaneously receives the historical working information sent by the non-volatile information storage 4, adds the current information and the historical information, and then sends it back to the non-volatile information storage 4 for storage.

[0018] During the query operation, the control and processing circuit 3 receives the radar query instruction, reads back the historical working information from the non-volatile information memory 4, and then transmits it to the radar back end through the optical fiber link, and at the same time forwards it to the information collection and power-on circuit 2, and transmits it to the radar back end for processing through the CAN bus backup. The dual-link information transmission mechanism provides higher reliability.

[0019] In this embodiment, the information collection and power-on circuit 2 is preferably implemented by the MCU; it receives radar instructions, performs voltage pulse modulation on the receiving / transmitting channel, and collects working information such as the number of startup times, receiving working time, transmitting working time, etc., and sends this working information to the control and processing circuit 3 through the UART bus;

[0020] In this embodiment, the control and processing circuit 3 is preferably implemented by FPGA; the current working information is received through the UART bus, and the historical working information sent by the non-volatile information memory 4 is received through the SPI bus, and after adding the current information and the historical information, it is resent to the non-volatile information memory 4 for storage;

[0021] In this embodiment, the non-volatile information storage 4 is preferably implemented by the CY14B256PA chip of CYPRESS, which has a storage space of 256Kbit (32K*8) and uses the SPI bus to exchange data externally. The chip has two storage spaces SRAM and a non-volatile area (using QuantumTrap), wherein the SRAM information disappears after power failure, but can be erased and written infinitely; the non-volatile area information does not disappear after power failure, but the number of erasures is limited. By using the charge stored in the energy storage capacitor 5, a write operation from SRAM to the non-volatile area can be completed once when the digital T / R component is turned off (the power supply voltage drops below the threshold voltage), ensuring the continuous accumulation of historical data. The number of power-on and power-off times of the digital T / R component in the entire life cycle is limited, so the number of write operations in the non-volatile area is also limited, avoiding the disadvantage that high-frequency erasure is required for high-precision timing using traditional Flash and the upper limit of the number of erasures is easily reached.

[0022] In this embodiment, the energy storage capacitor 5 is preferably implemented by a 47uF ceramic dielectric capacitor.

[0023] The patent of this invention proposes a method for accurately counting and recording high-reliability working information of digital T / R components. By utilizing the MCU and FPGA of the digital T / R components and adding a piece of nvSRAM, accurate counting and recording of high-reliability working information of the digital T / R components is achieved.

[0024] Many specific details are described in the above description to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited to the specific implementation disclosed above. At the same time, any person familiar with the art can make many possible changes and modifications to the technical solution of the present invention using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. A method for counting and recording working information of a digital T / R component, characterized in that: The system is implemented based on the following: a receiving / transmitting channel (1), an information collection and power-on circuit (2), a control and processing circuit (3), and a non-volatile information storage device (4); During normal operation, the information collection and power-on circuit (2) generates the pulse modulation working voltage required by the receiving / transmitting channel (1), and simultaneously records the number of times the power is turned on, the receiving working time, the transmitting working time and other related working information, and sends it to the control and processing circuit (3). The control and processing circuit (3) simultaneously receives the historical working information sent by the non-volatile information storage (4), adds the current information and the historical information, and sends them to the non-volatile information storage (4) for storage; During the query operation, the control and processing circuit (3) receives the query instruction, reads back the historical working information from the non-volatile information memory (4), and then transmits it to the radar back end through the optical fiber link, and at the same time forwards it to the information collection and power-on circuit (2), and transmits it to the radar back end through the CAN bus backup for processing; It also includes an energy storage capacitor. The non-volatile information storage device (4) includes an nvSRAM chip. During normal operation, data is stored in the SRAM of the nvSRAM chip. When power is off, the energy storage capacitor (5) supplies power to write data from the SRAM into the non-volatile area.

2. The method for counting and recording working information of a digital T / R component according to claim 1, characterized in that: The information collection and power-on circuit (2) includes an MCU, which performs pulse modulation on the power supply voltage of the receiving / transmitting channel (1) and sends the current working information to the control and processing circuit (3) via the UART bus.

3. The method for counting and recording working information of a digital T / R component according to claim 1, characterized in that: The control and processing circuit (3) includes an FPGA, and receives the current working information via a UART bus.

4. The method for counting and recording working information of a digital T / R component according to claim 1, characterized in that: The nvSRAM chip uses the CY14B256PA chip and uses the SPI bus to exchange data externally.

5. The method for counting and recording working information of a digital T / R component according to claim 1, characterized in that: The energy storage capacitor (5) uses a 47uF ceramic dielectric capacitor.

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