Data protection apparatus and satellite communication device

Abstract

The embodiment of the application provides a kind of data protection device and satellite communication equipment, comprising: controller, memory, satellite communication network state detection module and state driving module, wherein: the input of state driving module is connected with the output of satellite communication network state detection module, and the first output of state driving module is connected with controller and memory;Controller is also connected with memory;Satellite communication network state detection module is used to detect communication network state, when communication network state is off-line state, state driving module outputs high level, and high level is used to indicate controller to store data in memory.In the off-line state of communication network state, state driving module can output data storage signal to controller and memory respectively, and when receiving data storage signal, controller can start data protection program;When receiving data storage signal, memory can close write protection function.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly to a data protection device and a satellite communication device. Background Technology

[0002] Satellite communication equipment can transmit critical data in real time, such as location data and meteorological data.

[0003] In related technologies, satellite communication equipment can acquire critical data such as positioning data and meteorological data, and cache the critical data to be transmitted in the controller's memory for later transmission. However, in some extreme environments, such as marine geomagnetic storms or tunnels, the satellite communication equipment may experience network interruptions, resulting in the loss of critical data to be transmitted. Utility Model Content

[0004] This application provides a data protection device and a satellite communication device to solve the problem of data loss caused by network outages under extreme conditions.

[0005] In a first aspect, embodiments of this application provide a data protection device, comprising: a controller, a memory, a satellite communication network status detection module, and a status driving module, wherein:

[0006] The input terminal of the state driving module is connected to the output terminal of the satellite communication network state detection module, and the first output terminal of the state driving module is connected to the controller and the memory.

[0007] The controller is also connected to the memory;

[0008] The satellite communication network status detection module is used to detect the status of the communication network.

[0009] The state driving module is used to output data storage signals to the memory and the controller when the communication network is in a disconnected state;

[0010] The controller is used to store data into the memory based on the data storage signal;

[0011] The memory is used to disable write protection based on the data storage signal.

[0012] In one possible implementation, the data protection device further includes a first resistor, and the state driving module further includes a second output terminal, wherein...

[0013] The first output terminal of the state driving module is connected to the first terminal of the first resistor, and the second terminal of the first resistor is connected to the power supply.

[0014] The second output terminal of the state driving module is grounded.

[0015] In one possible implementation, the first output terminal of the state-driven module is connected to the first interface of the controller, where the first interface is an input or output interface.

[0016] The first output terminal of the state-driven module is connected to the second interface of the memory, and the second interface is used to control the write protection function of the memory.

[0017] In one possible implementation, the first interface of the controller may also be connected to the second interface of the memory.

[0018] In one possible implementation, the data protection device further includes a first capacitor, wherein,

[0019] The controller's first power interface is connected to the first capacitor.

[0020] In one possible implementation, the first capacitor is also connected between the power supply and ground.

[0021] In one possible implementation, the data protection device further includes a second capacitor, wherein,

[0022] The second power interface of the memory is connected to the second capacitor.

[0023] In one possible implementation, the data protection device further includes a third capacitor and a second resistor, wherein,

[0024] The controller's reset interface is connected to the first terminal of the third capacitor and the first terminal of the second resistor. The second terminal of the third capacitor is grounded, and the second terminal of the second resistor is connected to the power supply.

[0025] In one possible implementation, the data protection device further includes sensors and a communication module, wherein,

[0026] The sensor is connected to the controller, and the communication module is also connected to the controller and the satellite communication network status detection module.

[0027] The satellite communication network status detection module is used to detect the communication network status of the communication module.

[0028] Secondly, embodiments of this application provide a satellite communication device, including: a satellite communication module and any one of the data protection devices described in the previous application, wherein:

[0029] The data protection device is connected to the satellite communication module;

[0030] The satellite communication module is used to transmit data stored in the data protection device to the satellite.

[0031] This application provides a data protection device, including a controller, a memory, a satellite communication network status detection module, and a status driving module. The input terminal of the status driving module is connected to the output terminal of the satellite communication network status detection module, and the first output terminal of the status driving module is connected to the controller and the memory. The controller is also connected to the memory. The satellite communication network status detection module detects the communication network status. When the communication network is offline, the status driving module outputs a data storage signal, which can be a high-level signal, instructing the controller to store data in the memory. Thus, when the satellite communication equipment is offline, the controller can transmit the data to be transmitted to the memory for temporary storage based on the received data storage signal, thereby ensuring that the data is not lost. Attached Figure Description

[0032] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0033] Figure 1 This is a schematic diagram of a satellite communication device provided in an embodiment of this application;

[0034] Figure 2 This is a schematic diagram of the structure of a data protection device provided in an embodiment of this application;

[0035] Figure 3 This is a schematic diagram of another data protection device provided in an embodiment of this application;

[0036] Figure 4 This is a schematic diagram of another data protection device provided in an embodiment of this application;

[0037] Figure 5 This is a schematic diagram of another data protection device provided in an embodiment of this application;

[0038] Figure 6 This is a schematic diagram of another data protection device provided in an embodiment of this application;

[0039] Figure 7 This is a schematic diagram of another data protection device provided in an embodiment of this application;

[0040] Figure 8 This is a schematic diagram of another data protection device provided in an embodiment of this application;

[0041] Figure 9This is a schematic diagram of the structure of a satellite communication device provided in an embodiment of this application.

[0042] Explanation of reference numerals in the attached figures:

[0043] 20 - Data protection device;

[0044] 21-Controller;

[0045] 22-Memory;

[0046] 23-Satellite communication network status detection module;

[0047] 24-State-driven module;

[0048] 25 - First resistor;

[0049] 26 - First capacitor;

[0050] 27 - Second capacitor;

[0051] 28 - Third capacitor;

[0052] 29 - Second resistor;

[0053] 30-Sensor;

[0054] 31-Communication module;

[0055] 40 - Satellite communication equipment;

[0056] 41 - Satellite communication module;

[0057] 211 - The first interface of the controller;

[0058] 212 - The controller's first power interface;

[0059] 213 - Controller reset interface;

[0060] 221 - The second interface of the memory;

[0061] 222 - Second power interface for the memory;

[0062] 231 - Output terminal of satellite communication network status detection module;

[0063] 241 - Input terminal of the state-driven module;

[0064] 242 - First output of the state-driven module;

[0065] 243 - The second output terminal of the state-driven module;

[0066] 251 - The first terminal of the first resistor;

[0067] 252 - The second terminal of the first resistor;

[0068] 281 - The first terminal of the third capacitor;

[0069] 282 - The second terminal of the third capacitor;

[0070] 291 - The first terminal of the second resistor;

[0071] 292 - The second terminal of the second resistor.

[0072] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0073] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0074] It should be noted that in the embodiments of this application, certain software, components, models and other existing solutions in the industry may be mentioned. These should be regarded as exemplary and are only intended to illustrate the feasibility of implementing the technical solution of this application. However, it does not mean that the applicant has used or necessarily used the solution.

[0075] To facilitate understanding, the following will be combined with... Figure 1 The scenarios applicable to the embodiments of this application will be described.

[0076] Figure 1 This is a schematic diagram illustrating a scenario using a satellite communication device provided in an embodiment of this application. Please refer to [link / reference]. Figure 1 This includes sensing devices, satellite communication equipment, and satellites. The sensing devices can include equipment such as BeiDou positioning systems, weather instruments, and Automatic Identification Systems (AIS). The satellite communication equipment can acquire positioning data sent by the BeiDou positioning system, meteorological data sent by weather instruments, and ship information sent by the AIS. After receiving the data, the satellite communication equipment can transmit this data to the satellite, which then transmits it to the destination device.

[0077] In related technologies, satellite communication equipment can acquire critical data such as positioning data and meteorological data, and cache the critical data to be transmitted in the controller's memory for later transmission. However, in some extreme environments, such as marine geomagnetic storms or tunnels, the satellite communication equipment may experience network interruptions, resulting in the loss of critical data to be transmitted.

[0078] This application provides a data protection device and a satellite communication device, including: a controller, a memory, a satellite communication network status detection module, and a status driving module. The input terminal of the status driving module is connected to the output terminal of the satellite communication network status detection module, and the first output terminal of the status driving module is connected to the controller and the memory. The controller is also connected to the memory. The satellite communication network status detection module is used to detect the communication network status. When the communication network status is offline, the status driving module outputs a data storage signal to the memory and the controller. The controller stores data in the memory based on the data storage signal. The memory disables write protection based on the data storage signal. When the communication network status is offline, the status driving module can output a data storage signal to the controller and the memory respectively. The data storage signal can be a high level. When the controller receives a high level, it can start a data protection program; in other words, the high level can trigger the controller to write data into the memory. When the memory receives a high level, it can disable write protection; that is, after write protection is disabled, the memory can receive and store the data written by the controller. When the communication network is in normal operation, the state-driven module can output a low-level signal to both the controller and the memory. Upon receiving a low-level signal, the controller does not activate the data protection program; in other words, the high-level signal will not trigger the controller to write data into the memory. When the memory receives a low-level signal, it can enable write protection, meaning that data cannot be written to the memory after write protection is enabled. Thus, when the satellite communication equipment is disconnected, the controller can use the received high-level signal to transfer the data to be transmitted to the memory for temporary storage, ensuring that data is not lost and improving data integrity.

[0079] The data protection device shown in this application will now be described in detail through specific embodiments. It should be noted that the following embodiments may exist independently or in combination with each other; for the same or similar content, the description will not be repeated in different embodiments.

[0080] Figure 2 This is a schematic diagram of a data protection device provided in an embodiment of this application. Please refer to... Figure 2The data protection device 20 includes a controller 21, a memory 22, a satellite communication network status detection module 23, and a status driving module 24. The input terminal of the status driving module 24 is connected to the output terminal of the satellite communication network status detection module 23, and the first output terminal of the status driving module 24 is connected to the controller 21 and the memory 22. The controller 21 is also connected to the memory 22. The satellite communication network status detection module 23 is used to detect the communication network status. The status driving module 24 is used to output a data storage signal to the memory 22 and the controller 21 when the communication network status is offline. The controller 21 is used to store data in the memory 22 based on the data storage signal. The memory 22 is used to disable write protection based on the data storage signal.

[0081] The controller 21 has data processing capabilities. It can acquire sensing data sent by the sensor and process the sensing data, for example, by converting the analog signal of the sensing data into a digital signal.

[0082] The controller 21 can also send data to the memory 22 so that the memory 22 can store the data.

[0083] The controller 21 can also send data to the communication module, so that the communication module can send data to the satellite.

[0084] The controller 21 is connected to the state drive module 24 and the memory 22 respectively.

[0085] The memory 22 has a storage function and can be used to store data. For example, the memory 22 can receive data sent by the controller 21 and store it.

[0086] The memory 22 is connected to the state drive module 24 and the controller 21 respectively.

[0087] The satellite communication network status detection module 23 has a detection function and can be used to detect the status of the communication network.

[0088] When the satellite communication network status detection module 23 detects that the communication network status is disconnected, it can send the disconnection status to the status driving module 24, so that the status driving module 24 outputs a data storage signal, which can be a high-level signal; when the satellite communication network status detection module 23 detects that the communication network status is normal, it can send the normal status to the status driving module 24, so that the status driving module 24 outputs a low-level signal.

[0089] The state drive module 24 has a level control function, and the state drive module 24 can be used to control the level to switch between high level and low level according to the input signal.

[0090] The state-driven module 24 can be a transistor.

[0091] The status driving module 24 is connected to the controller 21, the memory 22 and the satellite communication network status detection module 23 respectively.

[0092] Below, in conjunction with Figure 3 The structure of data protection devices is explained through specific examples.

[0093] Figure 3 This is a schematic diagram of another data protection device provided in an embodiment of this application. Figure 2 Based on the illustrated embodiments, please refer to Figure 3 The data protection device 20 also includes: an input terminal 241 of the state driving module 24, a first output terminal 242 of the state driving module 24, a second output terminal 243 of the state driving module 24, and an output terminal 231 of the satellite communication network state detection module 23.

[0094] The output terminal 231 of the satellite communication network status detection module 23 has an output function, which can be used to send the communication network status detected by the satellite communication network status detection module to the status driving module 24.

[0095] The output terminal 231 of the satellite communication network status detection module 23 is connected to the input terminal 241 of the status drive module 24.

[0096] The input terminal 241 of the state driving module 24 has a control function, which can be used to adjust the working state of the state driving module 24. For example, it can be used to adjust the working state of the state driving module 24 to the on state or to the off state.

[0097] The input terminal 241 of the state drive module 24 can be the base of a transistor.

[0098] The first output terminal 242 of the state drive module 24 has an output function, which can be used to determine whether the output level is high or low.

[0099] The state-driven module 24 is connected to the memory 22 and the controller 21 through the first output terminal 242.

[0100] The first output terminal 242 of the state driving module 24 can be the collector of a transistor.

[0101] The second output terminal 243 of the state driving module 24 has a transmission function and can be used to transmit charge carriers to the input terminal 241.

[0102] The second output terminal 243 of the state drive module 24 can be grounded.

[0103] The second output terminal 243 of the state drive module 24 can be the emitter of a transistor.

[0104] Below, in conjunction with Figure 4 The structure of data protection devices is explained through specific examples.

[0105] Figure 4 This is a schematic diagram of another data protection device provided in an embodiment of this application. Figure 3 Based on the illustrated embodiments, please refer to Figure 4 The data protection device 20 also includes: a first resistor 25, a first end 251 of the first resistor 25, and a second end 252 of the first resistor 25.

[0106] The first resistor 25 has a current limiting protection function, which can be used to prevent excessive current, thereby protecting the state drive module 24 from damage.

[0107] The first terminal 251 of the first resistor 25 has a connection function, and the first resistor 25 is connected to the first output terminal 242 of the state drive module 24 through the first terminal 251.

[0108] The second terminal 252 of the first resistor 25 has a connection function. The first resistor 25 is connected to the power supply through the second terminal 252, thereby providing the necessary current and voltage to the circuit and ensuring that the state drive module 24 can work normally.

[0109] The following describes the workflow of the data protection device 20:

[0110] During data transmission, if the satellite communication network status detection module 23 detects that the communication network is in a disconnected state, it can send the disconnected communication network status to the status driving module 24. After receiving the disconnected status, the status driving module 24 adjusts its working state to the off state, thereby making the level output by the first output terminal 242 of the status driving module 24 high. The status driving module 24 sends the high level to the controller 21 and the memory 22 through the first output terminal 242. After receiving the high level sent by the status driving module 24, the controller 21 can confirm the data that has not yet been transmitted and send the data to be transmitted to the memory 22. After receiving the high level sent by the status driving module 24, the memory 22 can disable the write protection function so that the memory 22 can store the data.

[0111] The data protection device 20 shown in this embodiment includes a controller 21, a memory 22, a satellite communication network status detection module 23, and a status driving module 24. The controller 21 has data processing capabilities; it can acquire and process sensor data sent by sensors and send the data to the memory 22. The memory 22 has storage capabilities; it can receive and store data sent by the controller 21. The satellite communication network status detection module 23 has detection capabilities; it can detect the status of the communication network. The status driving module 24 has level control capabilities; it can switch the level between high and low based on the input signal. Thus, when the satellite communication network status detection module 23 detects a network outage, it can control the status driving module 24 to output a high level, thereby instructing the controller 21 to store the data in the memory 22, preventing data loss in the controller 21 due to network outage, and improving data integrity and system stability. The data protection device 20 also includes a first resistor 25, which has a current limiting protection function to prevent excessive current from damaging the state drive module 24 and other components in the system, thereby improving the stability of the system.

[0112] Based on any of the above embodiments, the following, in conjunction with Figure 5 Further explanation of the data protection device.

[0113] Figure 5 This is a schematic diagram of another data protection device provided in an embodiment of this application. Figure 4 Based on the illustrated embodiments, please refer to Figure 5 The data protection device 20 also includes a first interface 211 of the controller 21 and a second interface 221 of the memory 22.

[0114] The first interface 211 of the controller 21 has the function of signal input, which can be used to enable the controller 21 to communicate with external devices. For example, the controller 21 can receive a high-level signal sent by the state drive module 24 through the first interface 211.

[0115] The first interface 211 of the controller 21 also has a signal output function, which can be used to transmit data to external devices. For example, the controller 21 can transmit data to the memory 22 through the first interface 211.

[0116] The first interface 211 of the controller 21 is connected to the first output terminal 242 of the state drive module 24.

[0117] The second interface 221 of the memory 22 has a write protection control function, which can control the write protection function of the memory 22 to be turned on and off based on the received signal. The write protection function can be used to control whether data is allowed to be written to the memory 22, thereby ensuring that the data in the memory 22 is not accidentally modified or destroyed.

[0118] When the second interface 221 of memory 22 receives a high-level signal, it will disable the write protection function, thereby allowing data to be written; when the second interface 221 of memory 22 receives a low-level signal, it will enable the write protection function, thereby protecting memory 22 and preventing data from being written.

[0119] The state driving module 24 can send a high level to the second interface 221 of the memory 22, thereby disabling the write protection function of the memory 22; the state driving module 24 can send a low level to the second interface 221 of the memory 22, thereby enabling the write protection function of the memory 22.

[0120] The second interface 221 of the memory 22 is connected to the first output terminal 242 of the state drive module 24.

[0121] Optionally, the first interface 211 of the controller 21 can also be connected to the second interface 221 of the memory 22. In this way, when the controller 21 needs to store data in the memory 22, it can directly send a high level to the second interface 221 of the memory 22 through the first interface 211 of the controller 21, thereby disabling the write protection function of the memory 22, so that the controller 21 can store data in the memory 22.

[0122] exist Figure 5In the illustrated embodiment, the data protection device 20 further includes a first interface 211 of the controller 21 and a second interface 221 of the memory 22. The first interface 211 of the controller 21 has a signal input function, which can be used to receive a high-level signal sent by the state driving module 24 through the first interface 211; the first interface 211 of the controller 21 also has a signal output function, which can be used to transmit data to the memory 22 through the first interface 211; the second interface 221 of the memory 22 has a write protection control function. The state driving module 24 can control the write protection function of the memory 22 to be turned off by sending a high-level signal to the second interface 221 of the memory 22, and the state driving module 24 can also control the write protection function of the memory 22 to be turned on by sending a low-level signal to the second interface 221 of the memory 22. Using the above method, when the network is disconnected, the memory 22 can receive a high-level signal sent by the status driving module 24, thereby disabling the write protection function and allowing the memory 22 to store the data sent by the controller 21. In this way, the memory 22 only disables the write protection function when the network is disconnected, which can ensure that the data in the memory 22 will not be accidentally modified or destroyed, thus improving the integrity and security of the data.

[0123] Based on any of the above embodiments, the following, in conjunction with Figure 6 Further explanation of the data protection device.

[0124] Figure 6 This is a schematic diagram of another data protection device provided in an embodiment of this application. Figure 5 Based on the illustrated embodiments, please refer to Figure 6 The data protection device 20 also includes: a first capacitor 26, a second capacitor 27, a first power interface 212 of the controller 21, and a second power interface 222 of the memory 22.

[0125] The first capacitor 26 has a power supply function and can be used to supply power to the controller 21 after power failure.

[0126] Optionally, the first capacitor 26 can be a supercapacitor. A supercapacitor can refer to a capacitor with a high capacitance value, a short charging and discharging time, and a long service life. For example, the capacitance of the first capacitor 26 can be 0.1F.

[0127] The first power interface 212 of the controller 21 has a power supply function and can be used to provide the voltage required for the operation of the controller 21.

[0128] When the voltage of the first capacitor 26 is less than a first preset value, the first capacitor 26 can begin to discharge, that is, supply power to the controller 21, thereby ensuring that the controller 21 can still transmit data to the memory 22 even when power is off. For example, the first preset value can be 3.3V.

[0129] The first capacitor 26 is connected to the first power interface 212 of the controller 21.

[0130] The first capacitor 26 can also be connected between the power supply and ground to serve as a filter. That is, the first capacitor 26 can filter out high-frequency noise in the power supply, thereby reducing noise interference. The first capacitor 26 can also smooth the voltage and ensure that the system can operate within a stable voltage range.

[0131] The second capacitor 27 has a power supply function and can be used to supply power to the memory 22 after power failure.

[0132] Optionally, the second capacitor 27 can be a supercapacitor, for example, the capacitance of the second capacitor 27 can be 0.1F.

[0133] The second capacitor 27 is connected to the second power interface 222 of the memory 22.

[0134] When the voltage of the second capacitor 27 is less than the second preset value, the memory 22 will forcibly enable the write protection function, thereby protecting the integrity of the data in the memory 22 and ensuring that the data in the memory 22 will not be accidentally modified or lost. For example, the second preset value can be 2.7V, and after the power is disconnected, the second capacitor 27 can maintain power supply for 3.2ms before the voltage is less than the second preset value, so that the controller 21 can write 256 bytes of data to the memory 22.

[0135] The second capacitor 27 can also be connected between the power supply and ground to serve as a filter. That is, the second capacitor 27 can filter out high-frequency noise in the power supply, thereby reducing noise interference. The second capacitor 27 can also smooth the voltage and ensure that the system can operate within a stable voltage range.

[0136] The second power interface 222 of the memory 22 has a power supply function and can be used to provide the voltage required for the operation of the memory 22.

[0137] The following describes the working process of the first capacitor 26 and the second capacitor 27:

[0138] After a power outage or unexpected power failure, when the voltage of the first capacitor 26 is detected to be lower than a first preset value, the first capacitor 26 will begin to discharge, thereby supplying power to the controller 21. This ensures that the controller 21 has sufficient power to transmit data to the memory 22 even in the event of a power failure. Simultaneously, the second capacitor 27 will begin to discharge, thereby supplying power to the memory 22. This ensures that the memory 22 has sufficient power to store the data sent by the controller 21 even in the event of a power failure. When the voltage of the second capacitor 27 is detected to be lower than a second preset value, the memory 22 will forcibly enable the write protection function, thereby protecting the integrity of the data in the memory 22 and ensuring that the data in the memory 22 will not be accidentally modified or lost.

[0139] exist Figure 6 In the illustrated embodiment, the data protection device 20 further includes a first capacitor 26, a second capacitor 27, a first power interface 212 of the controller 21, and a second power interface 222 of the memory 22. The first capacitor 26 provides power to the controller 21 after a power outage; the second capacitor 27 provides power to the memory 22 after a power outage; the first power interface 212 of the controller 21 provides the voltage required for its operation; and the second power interface 222 of the memory 22 provides the voltage required for its operation. Thus, in the event of a power outage, the first capacitor 26 can provide a short-term power supply to the controller 21 to ensure that the controller 21 can transmit data to the memory 22 for storage, and the second capacitor 27 can provide a short-term power supply to the memory 22 to ensure that the memory 22 can store the data sent by the controller 21. This improves data integrity and ensures that the system does not lose data even in the event of a power outage.

[0140] Based on any of the above embodiments, the following, in conjunction with Figure 7 Further explanation of the data protection device.

[0141] Figure 7 This is a schematic diagram of another data protection device provided in an embodiment of this application. Figure 6 Based on the illustrated embodiments, please refer to Figure 7 The data protection device 20 also includes: a third capacitor 28, a second resistor 29, a reset interface 213 of the controller 21, a first terminal 281 of the third capacitor 28, a second terminal 282 of the third capacitor 28, a first terminal 291 of the second resistor 29, and a second terminal 292 of the second resistor 29.

[0142] The third capacitor 28 has a delay function, which can be used to provide a delay for the reset signal. When the power is turned on, the third capacitor 28 is temporarily charged, so that the voltage of the reset interface 213 of the controller 21 rises slowly, and the duration of the reset signal is long enough for the controller 21 to correctly identify and perform the reset process.

[0143] The third capacitor 28 has a first terminal 281 and a second terminal 282. The first terminal 281 of the third capacitor 28 is connected to the first terminal 291 of the second resistor 29, and the second terminal 282 of the third capacitor 28 is grounded.

[0144] The second resistor 29 has a holding function, which can be used to ensure that the reset interface 213 of the controller 21 remains at a high level, thereby preventing the controller 21 from triggering a reset.

[0145] The second resistor 29 has a first terminal 291 and a second terminal 292, with the second terminal 292 grounded.

[0146] The reset interface 213 of the controller 21 has a reset function, which can be used to restore the controller 21 to its initial state and restart the program execution after the controller 21 is powered off or malfunctions, thereby ensuring the stable operation of the controller 21.

[0147] The reset interface 213 of the controller 21 is connected to the first terminal 281 of the third capacitor 28 and the first terminal 291 of the second resistor 29.

[0148] exist Figure 7 In the illustrated embodiment, the data protection device 20 further includes a third capacitor 28, a second resistor 29, a reset interface 213 of the controller 21, a first terminal 281 of the third capacitor 28, a second terminal 282 of the third capacitor 28, a first terminal 291 of the second resistor 29, and a second terminal 292 of the second resistor 29. The third capacitor 28 has a delay function, which can be used to provide a delay for the reset signal, thereby enabling the controller 21 to correctly identify and perform the reset process. The second resistor 29 has a holding function, which can be used to ensure that the reset interface 213 of the controller 21 remains at a high level, thereby preventing the controller 21 from triggering a reset. The reset interface 213 of the controller 21 has a reset function, which can be used to ensure the stable operation of the controller 21. Thus, by connecting the third capacitor 28, the second resistor 29, and the reset interface 213 of the controller 21, a resistor-capacitor time constant circuit is formed, which can control the duration of the reset signal, thereby ensuring the stability of the reset behavior of the controller 21 and preventing erroneous resets or abnormal reset triggering.

[0149] Based on any of the above embodiments, the following, in conjunction with Figure 8 Further explanation of the data protection device.

[0150] Figure 8 This is a schematic diagram of another data protection device provided in an embodiment of this application. Figure 7 Based on the illustrated embodiments, please refer to Figure 8 The data protection device 20 also includes a sensor 30 and a communication module 31.

[0151] Sensor 30 has a detection function and can be used to detect sensing data, such as positioning data, ship data, and meteorological data. For example, sensor 30 can be a BeiDou positioning system, a weather instrument, or an automatic identification system.

[0152] Sensor 30 is connected to controller 21, and sensor 30 can send the detected sensing data to controller 21. Optionally, sensor 30 can be connected to the first interface 211 of controller 21.

[0153] The communication module 31 has a communication function, and the data that the controller 21 needs to transmit can be transmitted to the satellite through the communication module 31.

[0154] The communication module 31 is connected to both the satellite communication network status detection module 23 and the controller 21. Optionally, the communication module 31 can be connected to the first interface 211 of the controller 21.

[0155] The satellite communication network status detection module 23 can detect the communication network status of the communication module 31. When the communication module 31 is disconnected from the network, the satellite communication network status detection module 23 can detect that the communication network status of the communication module 31 is disconnected; when the communication module 31 is communicating normally, the satellite communication network status detection module 23 can detect that the communication network status of the communication module 31 is normal.

[0156] exist Figure 8 In the illustrated embodiment, the data protection device 20 further includes a sensor 30 and a communication module 31. The sensor 30 has a detection function and can be used to detect sensor data; the communication module 31 has a communication function and can transmit data that the controller 21 needs to transmit to the satellite; the satellite communication network status detection module 23 can be used to detect the communication network status of the communication module 31. Thus, the sensor 30 can send the detected sensor data to the controller 21, and the controller 21 transmits the sensor data to the satellite through the communication module 31; furthermore, when the satellite communication network status detection module 23 detects that the communication network status of the communication module 31 is offline, it can control the status drive module 24 to cause the controller 21 to send the data to the memory 22 for storage, thereby preventing the data to be transmitted from being lost and ensuring data integrity.

[0157] Based on any of the above embodiments, the working process of the data protection device will be described below.

[0158] Sensor 30 detects data and sends the detected data to controller 21.

[0159] When the satellite communication network status detection module 23 detects that the communication network status of the communication module 31 is normal, the satellite communication network status detection module 23 will send the normal communication network status to the status driving module 24. The first output terminal 242 of the status driving module 24 will output a low level and send the low level to the memory 22 to keep the write protection function of the memory 22 enabled. The controller 21 can transmit the data sent by the sensor 30 to the communication module 31, and the communication module 31 will send the data to the satellite.

[0160] When the network is interrupted due to extreme environment or unexpected problems, the satellite communication network status detection module 23 can detect that the communication network status of the communication module 31 is abnormal and send the abnormal communication network status to the status driving module 24. The first output terminal 242 of the status driving module 24 will output a high level and send the high level to the controller 21 and the memory 22 respectively. After receiving the high level, the controller 21 will send the data that has not yet been transmitted to the memory 22. After receiving the high level, the memory 22 will disable the write protection function, so that the data can be stored in the memory 22.

[0161] When the voltage of the first capacitor 26 is less than the first preset value, the first capacitor 26 can start to discharge, that is, supply power to the controller 21, thereby ensuring that the controller 21 can transmit data to the memory 22 even when the power is off.

[0162] When the voltage of the second capacitor 27 is less than the second preset value, the memory 22 will forcibly enable the write protection function, thereby protecting the integrity of the data in the memory 22 and ensuring that the data in the memory 22 will not be accidentally modified or lost.

[0163] Figure 9 This is a schematic diagram of a satellite communication device provided in an embodiment of this application. Please refer to... Figure 9 It includes satellite communication equipment 40 and satellite 50. Satellite communication equipment 40 also includes satellite communication module 41 and data protection device 20, wherein data protection device 20 is connected to satellite communication module 41; satellite communication module 41 is used to transmit data stored in data protection device 20 to satellite.

[0164] The satellite communication module 41 has a communication function and can be used to send data to the satellite 50. For example, the satellite communication module 41 can be used to transmit data stored in the data protection device 20 to the satellite 50.

[0165] The data protection device 20 has the function of protecting data when the network is disconnected, and can be used to store data to the memory inside the data protection device 20 when the network is disconnected.

[0166] The satellite communication module 41 and the data protection device 20 are connected.

[0167] exist Figure 9 In the illustrated embodiment, the satellite communication device 40 includes a satellite communication module 41 and a data protection device 20. The satellite communication module 41 can transmit the data stored in the data protection device 20 to the satellite 50. When the communication network is in a state of disconnection, the data protection device 20 can store the data in the memory within the data protection device 20, so that the data to be transmitted will not be lost due to network interruption, thereby protecting the integrity of the data.

[0168] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this application without departing from the spirit and scope of this application. Therefore, if these modifications and variations to the embodiments of this application fall within the scope of the claims of this application and their equivalents, this application also intends to include these modifications and variations.

Claims

1. A data protection device, characterized in that, include: The system comprises a controller, a memory, a satellite communication network status detection module, and a status-driven module, wherein: The input terminal of the state driving module is connected to the output terminal of the satellite communication network state detection module, and the first output terminal of the state driving module is connected to the controller and the memory. The controller is also connected to the memory; The satellite communication network status detection module is used to detect the status of the communication network. The state driving module is used to output data storage signals to the memory and the controller when the communication network is in a disconnected state; The controller is used to store data into the memory based on the data storage signal; The memory is used to disable write protection based on the data storage signal.

2. The data protection device according to claim 1, characterized in that, The data protection device further includes a first resistor, and the state driving module further includes a second output terminal, wherein... The first output terminal of the state driving module is connected to the first terminal of the first resistor, and the second terminal of the first resistor is connected to the power supply. The second output terminal of the state driving module is grounded.

3. The data protection device according to claim 2, characterized in that, The first output terminal of the state-driven module is connected to the first interface of the controller, and the first interface is an input or output interface. The first output terminal of the state-driven module is connected to the second interface of the memory, and the second interface is used to control the write protection function of the memory.

4. The data protection device according to claim 3, characterized in that, The first interface of the controller can also be connected to the second interface of the memory.

5. The data protection device according to any one of claims 1-4, characterized in that, The data protection device further includes a first capacitor, wherein... The controller's first power interface is connected to the first capacitor.

6. The data protection device according to claim 5, characterized in that, The first capacitor is also connected between the power supply and ground.

7. The data protection device according to any one of claims 1-4, characterized in that, The data protection device further includes a second capacitor, wherein, The second power interface of the memory is connected to the second capacitor.

8. The data protection device according to any one of claims 1-4, characterized in that, The data protection device further includes a third capacitor and a second resistor, wherein, The controller's reset interface is connected to the first terminal of the third capacitor and the first terminal of the second resistor. The second terminal of the third capacitor is grounded, and the second terminal of the second resistor is connected to the power supply.

9. The data protection device according to any one of claims 1-4, characterized in that, The data protection device also includes sensors and a communication module, wherein, The sensor is connected to the controller, and the communication module is also connected to the controller and the satellite communication network status detection module. The satellite communication network status detection module is used to detect the communication network status of the communication module.

10. A satellite communication device, characterized in that, include: The satellite communication module and the data protection device according to any one of claims 1-9, wherein: The data protection device is connected to the satellite communication module; The satellite communication module is used to transmit data stored in the data protection device to the satellite.

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