A high-compact integrated electronic system based on FPC

Abstract

The utility model discloses a kind of high compact integrated electronic systems based on FPC, is carried on small satellite, star service module and other module mutually cooperate, to realize data transmission and processing, management of telemetry and control, power distribution control management. Interface module will the external hardware resources of integrated electronic system be classified as needed to lead out, to realize and other module realizes connection communication. Telemetry and control module receives ground remote control instruction, remote control instruction is transmitted to corresponding module execution, and the parameter of integrated electronic system realizes telemetering. Intelligent power distribution module output power supply current, to provide power support to other module. Power supply controller module receives the power supply current output by intelligent power distribution module, and power supply current is distributed to other module. The utility model realizes module integration, integrates multiple modules on flexible circuit board (FPC), realizes compact structure design by folding or three-dimensional layout, effectively utilizes the limited space resource of small satellite.

Description

Technical Field

[0001] This utility model belongs to the aerospace field, and in particular relates to a highly compact integrated electronic system based on FPC. Background Technology

[0002] With the continuous development of aerospace technology, small satellites are playing an increasingly important role in the aerospace field. Small satellites refer to artificial satellites that are small in size, lightweight, and relatively simple in function. Compared with traditional large satellites, small satellites have significant advantages such as low cost, advanced technology, high flexibility, and convenient launch, and therefore have received widespread attention and application.

[0003] Currently, small satellites are used for scientific research, such as Earth observation, astronomical research, and air quality monitoring; they can also be used for communication, carrying communication equipment to achieve functions such as broadcasting, data transmission, and remote communication; and they can also be used in the field of navigation to perform tasks such as positioning, navigation, and time synchronization.

[0004] However, the development of small satellites has also brought a series of technical challenges. Due to size and mass limitations, small satellites require meticulous design and optimization in areas such as energy management, communication capabilities, attitude control, and data processing. Furthermore, the reliability and stability of small satellites are also key concerns. Utility Model Content

[0005] The technical objective of this invention is to provide a highly compact integrated electronic system based on FPC to address the problem of insufficient stability in existing small satellites.

[0006] To solve the above problems, the technical solution of this utility model is as follows: A compact integrated electronic system based on FPC, mounted on a small satellite, includes: The system includes a space service module, an interface module, a measurement and control module, a power controller module, and an intelligent power distribution module. The satellite service module is connected to the interface module, measurement and control module, intelligent power distribution module and power controller module respectively, and is configured to cooperate with other modules to realize data transmission and processing, measurement and control management, and power distribution control management. The interface module is configured to categorize and expose the external hardware resources of the integrated electronic system as needed, so as to enable connection and communication with other modules; The telemetry and control module is configured to receive remote control commands from the ground, transmit the remote control commands to the corresponding modules for execution, and remotely measure the parameters of the integrated electronic system. The intelligent power distribution module is configured to output supply current to provide power support to other modules; The power controller module is configured to receive the power supply current output from the intelligent power distribution module and distribute the power supply current to other modules.

[0007] Specifically, the space service module, interface module, measurement and control module, power controller module, and intelligent power distribution module are all deployed on a flexible circuit board; The folded flexible circuit board allows the spacecraft module, interface module, measurement and control module, power controller module, and intelligent power distribution module to be stacked sequentially or arranged in a three-dimensional structure.

[0008] The power controller module includes: Power supply components, power control components, power distribution components, and power supply interfaces; The power supply components include: a solar array and a battery pack; The solar array is connected to the battery pack and is configured to absorb solar radiation and convert it into electrical energy to power the integrated electronic system and charge the battery pack. The battery is configured to power the integrated electronic system; The power distribution component is configured to receive the power supply current from the power supply component and output the power supply current directly, or after primary power distribution, or after secondary power distribution to the power supply interface; The power supply interface receives the power supply current after power distribution and supplies it to other modules. The power control component is connected to the power supply component, the power distribution component, and the power supply interface signals, and is configured to control the power supply component, the power distribution component, and the power supply interface.

[0009] Specifically, the power control component includes a charge / discharge control unit and a power supply slave unit; The charging and discharging control unit is connected to the solar array, the battery pack and the power supply lower-level machine respectively, and is configured to be controlled by the power supply lower-level machine to perform charging and discharging on the solar array and the battery pack. The lower-level power supply unit is connected to the power supply component, power distribution component, power supply interface, and satellite module signals respectively. It is configured to collect signals from the power supply component, power distribution component, and power supply interface and upload them to the satellite module for signal processing, and to receive instructions from the satellite module to control the power supply component and power distribution component.

[0010] The power distribution unit has one input port and three output ports. The power distribution components include primary power distribution units, power conversion units, and secondary power distribution units; The power conversion unit is connected in series with the secondary power distribution unit and in parallel with the primary power distribution unit; The power supply current is output directly from one of the output ports through the input port, and / or through the input port and the primary power distribution unit and then from the other output port, and / or through the input port, the power conversion unit, and the secondary power distribution unit and then from the final output port.

[0011] Specifically, the intelligent power distribution module includes a power distribution protection unit, a data acquisition unit, and several power distribution units; The power distribution protection unit is connected to both the power distribution unit and the satellite module, and is configured to receive instructions from the satellite module to control the opening or closing of the power distribution unit. The acquisition unit is connected to the power distribution unit and the satellite module respectively, and is configured to acquire the input voltage, output voltage and load current of the power distribution unit and upload them to the satellite module.

[0012] More preferably, it is also equipped with an attitude control unit, a payload unit, and a data transmission unit that are connected to the satellite module for signal transmission; The attitude control unit is configured to adjust the attitude of the small satellite under the control of the attitude management unit of the satellite service module; The payload unit is configured to control the payloads carried by the payload management unit controlled by the space service module; The data transmission unit is configured to be controlled by the satellite module to transmit telemetry parameters from the telemetry and control module to the ground.

[0013] More preferably, the space service module also integrates a thermal control management unit, which is equipped with a thermistor configured to collect the temperature of the controlled point. When the temperature of the controlled point is lower than the lower threshold of the set temperature, the heater power supply of the corresponding channel is turned on. When the temperature of the controlled point reaches the upper threshold, the heater power supply is turned off automatically.

[0014] More preferably, the satellite service module also integrates a time management unit, configured to maintain the accuracy and consistency of the internal time of the small satellite.

[0015] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art: This invention's highly compact integrated electronic system achieves modular integration, combining the satellite service module, interface module, telemetry and control module, power controller module, and intelligent power distribution module onto a flexible printed circuit board (FPC). Through folding or three-dimensional layout, a compact structural design is achieved, effectively utilizing the limited space resources of small satellites. Furthermore, because this invention uses FPC as the base material for the circuit board, circuit lines are printed onto the substrate using a metallization process, forming flexible conductive paths. Utilizing the characteristics of FPC, the modules can be bent, folded, and folded, improving space utilization within a limited space and adapting to the needs of various shaped devices and structures. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

[0017] Figure 1 This is a hardware layout diagram of a highly compact integrated electronic system based on FPC according to this utility model; Figure 2 This is a schematic diagram of the hardware structure of a highly compact integrated electronic system based on FPC according to this utility model; Figure 3 This is a schematic diagram of the hardware structure under another embodiment of the present invention; Figure 4 This is a structural block diagram of a highly compact integrated electronic system based on FPC according to this utility model; Figure 5 This is a structural block diagram of the power controller module of this utility model; Figure 6 This is a structural block diagram of the intelligent power distribution module of this utility model.

[0018] Explanation of reference numerals in the attached figures: 1: Interface module; 2: Intelligent power distribution module; 3: Measurement and control module; 4: Power controller module; 5: Satellite service module. Detailed Implementation

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0020] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0021] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a highly compact integrated electronic system based on an FPC according to this invention. The advantages and features of this invention will become clearer from the following description and claims.

[0022] Example See Figures 1 to 6 This embodiment provides a highly compact integrated electronic system based on FPC, mounted on a small satellite. Firstly, it considers the structure, such as... Figure 1 As shown: This embodiment consists of several major modules, including a space service module 5, an interface module 1, a measurement and control module 3, a power controller module 4, and an intelligent power distribution module 2. Specifically, the space service module 5, interface module 1, measurement and control module 3, power controller module 4, and intelligent power distribution module 2 are all mounted on a flexible circuit board, as shown when unfolded. Figure 1 As shown, this makes the signal interconnection between modules more direct, reducing intermediate steps. Furthermore, from a structural perspective... Figure 2 The modules are stacked in layers, with each layer corresponding to one module. The modules above and below are connected by FPC to achieve flexible bending. Figure 3 The modules are then arranged into a three-dimensional structure, with the edges of the structure flexibly connected via FPC (Flexible Printed Circuit). Therefore, this embodiment can achieve high flexibility and compactness structurally, adaptable to different spatial constraints. Figure 2 and Figure 3 This is a typical layout structure.

[0023] Specifically, FPC, also known as flexible printed circuit, is a manufacturing technology that prints circuit lines onto a flexible substrate. Compared to traditional rigid circuit boards, FPC technology allows circuit lines to be bent, folded, and folded, thus offering unique advantages in the application of this embodiment: This embodiment uses a flexible substrate (such as polyamide film) as the base material for the circuit board. Circuit lines are printed onto the substrate using a metallization process, forming flexible conductive paths. The most significant characteristic of FPC (Flexible Printed Circuit) is its flexibility; it can be bent, folded, and flexed to a certain extent without breaking or damaging the circuit lines. This gives FPC an advantage in designs with limited space and curved surfaces, allowing it to adapt to the needs of devices and structures of various shapes. Simultaneously, FPC also exhibits high reliability, maintaining stable circuit connections under harsh environments such as vibration, shock, and temperature variations. Compared to rigid circuit boards, FPC enables thinner and lighter circuit designs, reducing the overall thickness and weight of the circuit board, which is highly advantageous for the design of small satellites.

[0024] See Figures 4 to 6 The satellite module 5 connects with multiple modules, including interface module 1, measurement and control module 3, intelligent power distribution module 2, and power controller module 4, to achieve data transmission and processing, measurement and control management, and power distribution control management.

[0025] The following explanation will focus on the power controller module 4: The architecture of power controller module 4 in this embodiment is as follows: Figure 5As shown, it mainly consists of a power supply component, a power control component, a power distribution component, and a power supply interface. The power supply component includes a solar array and a battery bank. The solar array is connected to the battery bank; it absorbs solar radiation and converts it into electrical energy to power the entire integrated electronic system and charge the battery bank. The battery bank also supplies power to the integrated electronic system. The power control component is connected to the power supply component, power distribution component, and power supply interface, controlling their operation. Specifically, the power control component includes a charge / discharge control unit and a lower-level power supply unit. The charge / discharge control unit includes a charge control unit (MPPT) and a discharge control unit. The charge control unit is connected to the solar array, and the discharge control unit is connected to the battery bank. A relay control circuit connects the charge control unit (MPPT) and the discharge control unit. The power supply slave unit and the satellite service module 5 communicate via a bus, enabling the power supply slave unit to perform the following functions: It acquires the output power of the solar array from the charging control unit and adjusts the array's output in real time based on the acquired power to ensure optimal operation, maximizing energy input from the illuminated area to charge the battery pack while simultaneously powering the entire satellite load. Simultaneously, the power supply slave unit acquires the battery voltage from the discharge control unit. When the battery voltage falls below a certain threshold, the battery pack's discharge channel automatically shuts off (implemented by the discharge control unit). This function can cut off load discharge during high-power abnormal discharges or energy crises caused by other power system failures, preventing over-discharge damage to the battery pack. The solar array continuously charges the battery pack; when the battery pack returns to normal, the discharge channel is reconnected, restoring the battery's discharge path.

[0026] Further, see Figure 5 The power distribution component receives the supply current from the power supply component and outputs it directly, or after primary or secondary power distribution, to the power supply interface. Specifically, the power distribution component has one input port and three output ports, and includes a primary power distribution unit, a power conversion unit, and a secondary power distribution unit. One supply current is directly output from one of the output ports via the input port. Another supply current passes through the input port and the primary power distribution unit before being output from another output port. Finally, the supply current passes through the power conversion unit (converting multiple DC-DC converters to the voltage required by the load) and the secondary power distribution unit before being output from the last output port.

[0027] The power supply interface receives the power supply current after power distribution and supplies it to other modules, such as the attitude management unit, load management unit, thermal control management unit, measurement and control module 3, and data transmission unit.

[0028] Furthermore, this embodiment includes a thermal control management unit integrated into the satellite service module 5, which centrally allocates resources. The power supply slave unit receives control commands from the satellite service module 5 and controls the thermal control power distribution (primary or secondary power distribution unit) output as needed, ensuring that the instruments, equipment, and structural components on the satellite operate within the specified temperature range during on-orbit operation. The thermal control management unit is equipped with a thermistor to collect the temperature of the measured point. When the temperature at the measured point is lower than the lower threshold of the set temperature, the heater power distribution of the corresponding channel is turned on; when the temperature reaches the upper threshold, the heater power distribution is automatically turned off, realizing closed-loop thermal control.

[0029] See Figure 6 In this embodiment, specifically, the intelligent power distribution module 2 includes a power distribution protection unit, a data acquisition unit, and several power distribution units. The power distribution protection unit is signal-connected to both the power distribution units and the satellite service module 5, and is used to receive instructions from the satellite service module 5 to control the opening or closing of the power distribution units (power distribution enable control is uniformly allocated by the satellite service module 5 according to mission requirements). The data acquisition unit is signal-connected to both the power distribution units and the satellite service module 5, and is used to acquire the input voltage, output voltage, and load current of the power distribution units and upload them to the satellite service module 5. When the input voltage exceeds a certain set threshold or a fault occurs at the load end (mainly a short-circuit fault), the power distribution protection unit closes or restarts the power distribution unit switch to achieve fault isolation and recovery.

[0030] See Figure 4 In this embodiment, the telemetry and control module 3 receives uplink spread spectrum remote control signals sent by the ground telemetry and control station, performs despreading and demodulation, processes the despread and demodulated remote control signals, generates direct commands to be distributed to relevant equipment for execution, and generates indirect commands and uplink data to the satellite service module 5. On the other hand, it receives telemetry information transmitted by the satellite service module 5, performs modulation and power amplification, and transmits S-band downlink spread spectrum telemetry signals to the ground telemetry and control station to guide the ground station to capture the spacecraft, while simultaneously transmitting on-board telemetry information to the ground. Preferably, the data transmission unit is controlled by the satellite service module 5 to transmit the telemetry parameters of the telemetry and control module 3 to the ground.

[0031] See Figure 4 In this embodiment, more preferably, an attitude control unit connected to the satellite service module 5 is also provided. The attitude control unit is controlled by the attitude management unit of the satellite service module 5 to adjust the attitude of the small satellite. More preferably, a payload unit connected to the satellite service module 5 is also provided. The payload unit is controlled by the payload management unit of the satellite service module 5 to communicate with and control the onboard payload (payload lower-level machine) and complete various payload tasks.

[0032] See Figure 4In this embodiment, the satellite service module 5 also integrates a time management unit to maintain the accuracy and consistency of the internal time of the small satellite. Its main functions are to generate on-board reference time, establish an on-board time system, allocate the on-board reference time to relevant equipment, and provide a second pulse time synchronization method to ensure the accuracy of the onboard time.

[0033] See Figure 4 In this embodiment, the interface module 1 categorizes and exposes the external hardware resources of the integrated electronic system as needed to enable communication with other modules (such as the measurement and control module 3, data transmission unit, attitude unit, and load unit mentioned above).

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A highly compact integrated electronic system based on FPC, mounted on a small satellite, characterized in that, include: The system includes a space service module, an interface module, a measurement and control module, a power controller module, and an intelligent power distribution module. The satellite service module is connected to the interface module, the measurement and control module, the intelligent power distribution module, and the power controller module, and is configured to cooperate with other modules to realize data transmission and processing, measurement and control management, and power distribution control management. The interface module is configured to classify and expose the external hardware resources of the integrated electronic system as needed, so as to achieve connection and communication with other modules; The measurement and control module is configured to receive remote control commands from the ground, transmit the remote control commands to the corresponding modules for execution, and remotely measure the parameters of the integrated electronic system. The intelligent power distribution module is configured to output power supply current to provide power support to other modules; The power controller module is configured to receive the power supply current output by the intelligent power distribution module and distribute the power supply current to other modules; The satellite service module, interface module, measurement and control module, power controller module and intelligent power distribution module are all mounted on a flexible circuit board. Folding the flexible circuit board allows the space service module, interface module, measurement and control module, power controller module, and intelligent power distribution module to be stacked sequentially or arranged in a three-dimensional structure.

2. The FPC-based high-compact integrated electronic system according to claim 1, characterized in that, The power controller module includes: Power supply components, power control components, power distribution components, and power supply interfaces; The power supply components include: a solar array and a battery pack; The solar array is connected to the battery pack and is configured to absorb solar radiation energy and convert it into electrical energy to power the integrated electronic system and charge the battery pack. The battery is configured to supply power to the integrated electronic system; The power distribution component is configured to receive the power supply current from the power supply component and output the power supply current directly, or after a primary power distribution, or after a secondary power distribution to the power supply interface. The power supply interface receives the power supply current after power distribution and supplies it to other modules. The power control component is connected to the power supply component, the power distribution component, and the power supply interface respectively, and is configured to control the power supply component, the power distribution component, and the power supply interface.

3. The FPC-based high-compact integrated electronic system according to claim 2, characterized in that, The power control component includes a charge / discharge control unit and a power supply slave unit; The charging and discharging control unit is connected to the solar array, the battery pack and the power supply lower-level machine respectively, and is configured to be controlled by the power supply lower-level machine to charge and discharge the solar array and the battery pack. The lower-level power supply unit is connected to the power supply component, the power distribution component, the power supply interface, and the satellite service module, respectively. It is configured to collect signals from the power supply component, the power distribution component, and the power supply interface and upload them to the satellite service module for signal processing, and to receive instructions from the satellite service module to control the power supply component and the power distribution component.

4. The FPC-based high-compact integrated electronic system according to claim 3, characterized in that, The power distribution component has one input port and three output ports. The power distribution components include a primary power distribution unit, a power conversion unit, and a secondary power distribution unit; The power conversion unit is connected in series with the secondary power distribution unit and in parallel with the primary power distribution unit; The power supply current is output directly from one of the output ports via the input port, and / or via the input port and the primary power distribution unit to the other output port, and / or via the input port, the power conversion unit, and the secondary power distribution unit to the final output port.

5. The FPC-based high-compact integrated electronic system according to claim 1, characterized in that, The intelligent power distribution module includes a power distribution protection unit, a data acquisition unit, and several power distribution units; The power distribution protection unit is connected to both the power distribution unit and the satellite module via signals, and is configured to receive instructions from the satellite module to control the opening or closing of the power distribution unit. The acquisition unit is connected to the power distribution unit and the satellite service module respectively, and is configured to acquire the input voltage, output voltage and load current of the power distribution unit and upload them to the satellite service module.

6. The FPC-based high-compact integrated electronic system according to claim 1, characterized in that, It is also equipped with an attitude control unit, a payload unit, and a data transmission unit that are connected to the satellite service module via signals; The attitude control unit is configured to adjust the attitude of the small satellite under the control of the attitude management unit of the satellite service module; The payload unit is configured to control the payload carried by the payload management unit of the space service module; The data transmission unit is configured to be controlled by the satellite module to transmit the telemetry parameters of the telemetry and control module to the ground.

7. The FPC-based high-compact integrated electronic system according to claim 1, characterized in that, The satellite module also integrates a thermal control management unit, which is equipped with a thermistor configured to collect the temperature of the controlled point. When the temperature of the controlled point is lower than the lower threshold of the set temperature, the heater power supply of the corresponding channel is turned on. When the temperature of the controlled point reaches the upper threshold, the heater power supply is turned off automatically.

8. The FPC-based high-compact integrated electronic system according to claim 1, characterized in that, The satellite service module also integrates a time management unit, which is configured to maintain the accuracy and consistency of the internal time of the small satellite.

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