Flexible development auxiliary device for double-logic-unit control system

Abstract

The utility model discloses a flexible development auxiliary device for a double-logic unit control system, which comprises a circuit board body, and the circuit board body is provided with a first logic control unit, a test base, a power supply module, a burner serial port module, a communication module, a memory module, an accelerometer module and an optocoupler communication module. The utility model provides an auxiliary device for flexible development of a double-logic unit control system. A power supply module, a burner serial port module, a communication module, a memory module, an accelerometer module and an optocoupler communication module are respectively connected with a first logic control unit and a second logic control unit in a test base; the first logic control unit is directly welded on the circuit board body, and the logic control unit in the test base can be directly replaced according to different test requirements, so that different test working conditions can be adapted; and the arranged optocoupler communication module can be convenient for testing the output condition of the insurance control signal of the full-electronic safety system.

Description

Technical Field

[0001] This utility model relates to the field of electronic security system auxiliary development and design technology, and more specifically to a flexible development auxiliary device for a dual logic unit control system. Background Technology

[0002] In the design of fuze safety systems, a dual-logic-unit control system plays a crucial role. A fuze safety system typically consists of two logic units, which can be microcontrollers, DSPs, or CPLDs, used to ensure that the fuze does not unexpectedly disengage or activate under predetermined environmental stimuli. The design of a dual-logic-unit control system means that even if one logic unit fails, the other unit can still guarantee the safe operation of the system.

[0003] According to invention patent application CN116859814A, published on October 10, 2023, a dual-MCU safety control method and system are disclosed, including a voltage limit configuration module, a reference voltage module, a window comparator module, an inversion processing module, and an MCU control module. The method includes configuring the upper voltage limit Uupper limit and lower voltage limit Ulower limit of the window comparator and performing voltage regulation; determining the output signal of the window comparator based on the comparison result; inverting the output signal of the window comparator; if the newly output level signal is a high level signal, then controlling the MCU to work normally; otherwise, stopping operation or resetting. Its main technical effect is: resetting the MCU or driving important signals to prevent power failure and control failure.

[0004] In the development of a dual logic unit control system, the development environment can be built by combining development boards of single logic control units. However, since it is developed based on a single logic unit control system, the logic control chip cannot be flexibly replaced and the wiring is complex when developing a dual logic unit control system. Therefore, a flexible development auxiliary device for dual logic unit control systems is proposed to solve the problems of difficulty in replacing logic control chips and complex wiring in the existing technology of combining development boards of single logic control units. Utility Model Content

[0005] The purpose of this invention is to provide a flexible development auxiliary device for a dual logic unit control system, which aims to solve the problems of difficulty in replacing logic control chips and complex wiring in the existing technology that uses a single logic control unit development board for combination.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A flexible development auxiliary device for a dual logic unit control system includes a circuit board body. The circuit board body is equipped with a first logic control unit, a test base, a power module, a programmer serial port module, a communication module, a storage module, an accelerometer module, and an optocoupler communication module. The power module is electrically connected to the programmer serial port module, the communication module, the storage module, the accelerometer module, the optocoupler communication module, the first logic control unit, and the test base. The programmer serial port module, the communication module, the accelerometer module, the storage module, and the optocoupler communication module are all data connected to the first logic control unit and the test base, respectively.

[0008] Preferably, the test base includes an upper cover and a lower cover, the upper cover being rotatably connected to the lower cover, and a movable plate being provided inside the lower cover, with a wedge-shaped abutment at one end of the movable plate.

[0009] Preferably, the lower cover is provided with a limiting block inside, the limiting block has a sliding groove inside, the movable plate is slidably connected in the sliding groove, an elastic sheet is provided between the movable plate and the inner wall of the sliding groove, and an abutment block is provided on the outer wall of the limiting block.

[0010] Preferably, the power module includes a USB interface, which is connected to the programmer serial port module, communication module, storage module, accelerometer module, optocoupler communication module, first logic control unit and test base.

[0011] Preferably, the communication module includes an IIC module and a CAN module.

[0012] In the above technical solution, the flexible development auxiliary device for a dual logic unit control system provided by this utility model has the following beneficial effects:

[0013] In this invention, the programmer's serial port module, communication module, storage module, accelerometer module, and optocoupler communication module are all connected to the first logic control unit and the test base, respectively. The programmer's serial port module, communication module, storage module, accelerometer module, and optocoupler communication module can all selectively connect to the first logic control unit and the second logic control unit in the test base, providing high flexibility and meeting the auxiliary development needs of electronic safety systems in most cases. At the same time, the board has onboard test buttons and indicator lights, which can be selected via jumpers, providing convenience for users.

[0014] The first logic control unit is directly soldered onto the circuit board body, while the second logic control unit inside the test base can be directly replaced according to different test requirements, and can adapt to different test conditions.

[0015] The optical coupler communication module can facilitate testing of the output of the safety control signal of the all-electronic safety system. The isolated power supply method can also better protect the auxiliary device and increase the anti-interference capability.

[0016] By bringing out the programmer's serial port module, communication module, memory module, accelerometer module, and optocoupler communication module, the required complete circuit can be quickly completed by connecting the peripheral circuit interfaces and logic control unit pins as needed, according to project requirements. This verifies the compatibility of the embedded program. Its quick-release and high flexibility can efficiently match different project requirements. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided for an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the open structure of the test base provided in an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the back structure of the circuit board body provided in an embodiment of the present utility model;

[0021] Figure 4 A schematic diagram of the circuit connection principle provided for an embodiment of this utility model;

[0022] Figure 5 This is a schematic diagram of the overall three-dimensional structure of the test base provided in an embodiment of the present utility model;

[0023] Figure 6 This is a schematic cross-sectional view of the limiting block provided in an embodiment of the present utility model;

[0024] Figure 7 This is a schematic diagram of the groove opening position structure provided in an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Circuit board body; 2. First logic control unit; 3. Test base; 31. Top cover; 32. Bottom cover; 33. Movable plate; 34. Wedge-shaped abutment part; 35. Limiting block; 36. Slide groove; 37. Abutment block; 4. Power module; 5. Programmer serial port module; 6. Communication module; 7. Storage module; 8. Accelerometer module; 9. Optical coupler communication module. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] Please see Figure 1 —7, A flexible development auxiliary device for a dual logic unit control system, comprising a circuit board body 1, wherein a first logic control unit 2, a test base 3, a power supply module 4, a programmer serial port module 5, a communication module 6, a storage module 7, an accelerometer module 8, and an optocoupler communication module 9 are disposed on the circuit board body 1. The power supply module 4 is electrically connected to the programmer serial port module 5, the communication module 6, the storage module 7, the accelerometer module 8, the optocoupler communication module 9, the first logic control unit 2, and the test base 3, respectively. The programmer serial port module 5, the communication module 6, the accelerometer module 8, the storage module 7, and the optocoupler communication module 9 are all data connected to the first logic control unit 2 and the test base 3, respectively.

[0029] The first logic control unit 2 uses an LQFP-48 packaged chip module. The test base 3 is compatible with any LQFP-48 packaged chip. The programmable pins of the chip are brought out via 2.54mm header pins for flexible wiring during testing. An 8MHz active crystal oscillator is onboard, allowing users to select between an external and internal crystal oscillator during programming. The BOOT0 and BOOT1 pins are brought out via header pins. Connecting the BOOT0 pin to a 3.3V high level using a jumper cap unlocks the locked chip. A reset button is onboard for one-button reset of the chip. The SWD programming port and serial port are both directly brought out for easy use.

[0030] Power module 4 is used to provide power, specifically including XT30 interface and USB interface 10. Both power module 4 and USB interface 10 can provide 5V power supply. Among them, the XT30 interface of power module 4 has isolation protection function, which can protect the control circuit and be used for power supply of the whole board. The USB interface 10 uses a Type-C interface for non-isolated power supply, with a power supply capacity of up to 5W.

[0031] The programmer serial port module 5 mainly uses CH32V305FBP6 as the core chip and relies on USB interface 10 as the information transmission interface to realize the unification of programming and serial port. That is, embedded software programming and TTL serial port communication can be realized through USB interface 10.

[0032] As an embodiment of this utility model, the USB interface 10 uses a type-c interface for data transmission and power supply.

[0033] The logic control units inside the first logic control unit 2 and the test base 3 can share a data interface through jumper-based time-division multiplexing.

[0034] Communication module 6 is a reserved module that can be expanded to connect to various sensors and communication modules, specifically including the IIC module and the CAN module.

[0035] The memory module 7 mainly contains two W25Q128 SPI FLASH chips and their peripheral circuits. Their interfaces all use 4-pin MX1.25 male connectors. By connecting the wires to the relevant pins of the microcontroller according to the interface definition, the interaction between the microcontroller and the memory can be realized.

[0036] Accelerometer module 8 mainly includes chips such as ABA2000, BMI160, ADXL325 and ADXL377 and their peripheral circuits. The interfaces all use MX1.25 male connectors, which are 4pin, 6pin, 3pin and 3pin respectively. The wires are connected to the microcontroller pins according to the interface definition, which can meet the needs of different projects to receive accelerometer signals using different pins.

[0037] The optocoupler communication module 9 is powered by the power supply module 4. It requires an external power supply to operate. By connecting a test device, such as an oscilloscope, to the corresponding test point, the pin signals of the custom-connected microcontroller can be monitored. The board has an onboard high-speed optocoupler chip that can monitor high-frequency PWM signals in real time. The amplitude can be changed according to the voltage source supplied to the vertical XT30. The voltage of the test point supports 5-32V.

[0038] The circuit board body 1 is also equipped with indicator lights, including 3.3V and 5V power supply indicator lights, as well as pin-customizable test indicator lights. By connecting the microcontroller pin header to the indicator light pin header, the real-time level of the microcontroller pin can be displayed intuitively.

[0039] A test button is also provided on the circuit board body 1. The test button is designed similarly to the test indicator light and can be flexibly connected to the pin of the microcontroller. The level of the microcontroller pin can be changed by pressing the button.

[0040] The test buttons and indicator lights are all onboard and can be selected via jumpers, providing convenience for users.

[0041] In this utility model, the power module 4, programmer serial port module 5, communication module 6, storage module 7, accelerometer module 8, and optocoupler communication module 9 are all connected to the first logic control unit 2 and the test base 3, respectively. The programmer serial port module 5, communication module 6, storage module 7, accelerometer module 8, and optocoupler communication module 9 can all selectively connect to the second logic control unit in the first logic control unit 2 and the test base 3, which has high flexibility and can meet the auxiliary development needs of electronic safety systems in most cases. At the same time, the board has test buttons and indicator lights, which can be selected by jumper, providing convenience for users.

[0042] The first logic control unit 2 is directly soldered onto the circuit board body 1, while the logic control unit inside the test base 3 can be directly replaced according to different test requirements, and can adapt to different test conditions.

[0043] The optical coupler communication module 9 can facilitate testing the output of the safety control signal of the all-electronic safety system. The isolated power supply method can also better protect the auxiliary device and increase the anti-interference capability.

[0044] By bringing out the programmer serial port module 5, communication module 6, storage module 7, accelerometer module 8, and optocoupler communication module 9, the required complete circuit can be quickly completed by connecting the peripheral circuit interface and the logic control unit pins as needed according to project requirements. This verifies the compatibility of the embedded program. Its quick-release and high flexibility can efficiently match different project requirements.

[0045] It should be noted that the power module 4, the programmer serial port module 5, the communication module 6, the storage module 7, the accelerometer module 8, and the optocoupler communication module 9 have multiple interfaces on the circuit board body 1 to match the connection requirements of different projects.

[0046] As a further embodiment provided by this utility model, such as Figure 5 , Figure 6 and Figure 7As shown, the test base 3 includes an upper cover 31 and a lower cover 32. It should be noted that four limiting blocks 35 are arranged in a circular array inside the lower cover 32. Chip contacts are provided between the four limiting blocks 35 for connecting the chip to be tested. By connecting the upper cover 31 and the lower cover 32, the chip to be tested is fixed between the upper cover 31 and the lower cover 32. It should be noted that the contacts inside the lower cover 32 and the fixing structure and method connecting the upper cover 31 and the lower cover 32 are existing technologies, and their structure and principle will not be elaborated here. A groove 36 is provided on the outer wall of the limiting block 35. Preferably, the groove 36 is inclinedly opened inside the limiting block 35. The movable plate 33 is specifically an "L" shaped structure. One end of the "L" shaped movable plate 33 is slidably connected to the groove 36. A wedge-shaped abutment part 34 is provided at one end of the movable plate 33 located inside the groove 36. An elastic piece is provided between the other end of the "L" shaped structure of the movable plate 33 and the limiting block 35. The elasticity of the elastic piece itself drives one end of the movable plate 33 to move away from the limiting block 35. Preferably, an abutment block 37 is fixedly installed on the outer wall of the limiting block 35. The abutment block 37 restricts one end of the movable plate 33 from coming off.

[0047] The elastic sheet is specifically an arc-shaped elastic plastic sheet, which is positioned between the movable plate 33 and the limiting block 35.

[0048] When it is necessary to replace the chip inside the test base 3, open the upper cover 31, and then use tweezers to push the movable plate 33 so that one end of the movable plate 33 inside the slide groove 36 remains movable. The chip is pushed out from inside the lower cover 32 by the wedge-shaped abutment part 34 set at one end of the movable plate 33, making it easy to replace.

[0049] It should be noted that the accompanying drawings provided by this utility model only indicate the positions of some chips in each module. In actual production, the position, model and quantity of chips can be customized according to design requirements to ensure applicability to different working conditions.

[0050] The elastic sheet mentioned in this article has an elastic coefficient that meets the technical requirements of the present invention.

[0051] Those skilled in the art will understand that other similar connection methods can also achieve this utility model. For example, welding, bonding, or screwing.

[0052] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A flexible development auxiliary device for a dual logic unit control system, comprising a circuit board body (1), characterized in that, The circuit board body (1) is provided with a first logic control unit (2), a test base (3), a power module (4), a programmer serial port module (5), a communication module (6), a storage module (7), an accelerometer module (8), and an optocoupler communication module (9). The power module (4) is electrically connected to the programmer serial port module (5), the communication module (6), the storage module (7), the accelerometer module (8), the optocoupler communication module (9), the first logic control unit (2), and the test base (3). The programmer serial port module (5), the communication module (6), the accelerometer module (8), and the storage module (7) are all connected to the first logic control unit (2) and the test base (3).

2. The flexible development auxiliary device for a dual logic unit control system according to claim 1, characterized in that, The test base (3) includes an upper cover (31) and a lower cover (32). The upper cover (31) is rotatably connected to the lower cover (32). The lower cover (32) has a movable plate (33) inside, and a wedge-shaped abutment part (34) is provided at one end of the movable plate (33).

3. The flexible development auxiliary device for a dual logic unit control system according to claim 2, characterized in that, The lower cover (32) is provided with a limiting block (35) inside, and a sliding groove (36) is provided inside the limiting block (35). The movable plate (33) is slidably connected in the sliding groove (36). An elastic sheet is provided between the movable plate (33) and the inner wall of the sliding groove (36). An abutment block (37) is provided on the outer wall of the limiting block (35).

4. The flexible development auxiliary device for a dual logic unit control system according to claim 1, characterized in that, The power module (4) includes a USB interface (10), which is connected to the programmer serial port module (5), communication module (6), storage module (7), accelerometer module (8), optocoupler communication module (9), first logic control unit (2) and test base (3).

5. The flexible development auxiliary device for a dual logic unit control system according to claim 1, characterized in that, The communication module (6) includes an IIC module and a CAN module.

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