Doppler ultrasound imaging system, control method and storage medium

Abstract

The application provides a Doppler ultrasound imaging system, a control method and a storage medium. The Doppler ultrasound imaging system comprises: a host computer, a PCIe adapter board, the PCIe adapter board comprising a first PCIe interface; a Doppler ultrasound imaging front-end board, comprising a second PCIe interface; a PCIe cable, the first end of the PCIe cable being connected with the first PCIe interface, and the second end being connected with the second PCIe interface, the PCIe cable being used for transmitting signals between the PCIe interface and the second PCIe interface; the PCIe cable comprising a PCIe clock shielding cable shell, a first shielding layer attached to the inner wall of the PCIe clock shielding cable shell, a second shielding layer arranged inside the first shielding layer, and a clock signal line group arranged inside the second shielding layer, the clock signal line group comprising a first clock signal line and a second clock signal line for transmitting differential clock signals. The application can to some extent avoid the problem of missing Doppler ultrasound function caused by electrostatic discharge.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of Doppler ultrasound imaging, in particular to a Doppler ultrasound imaging system, a control method and a storage medium. BACKGROUND

[0002] After the ultrasound front end of the Doppler ultrasound imaging system collects data, a large amount of data needs to be uploaded to the host computer. Therefore, the front end and the host computer need to be interconnected through a large bandwidth communication, and the optional interconnection mode includes PCIe interconnection. However, the PCIe interconnection will have a relatively large electro-static discharge (ESD) problem, which is very difficult to pass the high-level electro-static standard requirement of 8KV / 15KV of medical devices, and will cause the loss of ultrasound function. Therefore, the electro-static discharge problem existing in the current Doppler ultrasound imaging system will cause the loss of Doppler ultrasound function. SUMMARY

[0003] One purpose of the present application is to provide a Doppler ultrasound imaging system, a control method and a storage medium, which aims to avoid the problem of loss of Doppler ultrasound function caused by electro-static discharge to some extent.

[0004] According to an aspect of an embodiment of the present application, a Doppler ultrasound imaging system is provided, comprising:

[0005] a host computer, the host computer comprising a first peripheral component interconnect express (PCIe) adapter board, the PCIe adapter board comprising a first PCIe interface;

[0006] a Doppler ultrasound imaging front-end board, the Doppler ultrasound imaging front-end board comprising a second PCIe interface;

[0007] a PCIe cable, a first end of the PCIe cable being connected to the first PCIe interface, a second end of the PCIe cable being connected to the second PCIe interface, the PCIe cable being used for transmitting signals between the first PCIe interface and the second PCIe interface; the PCIe cable comprising a PCIe clock shielding cable shell, a first shielding layer attached to an inner wall of the PCIe clock shielding cable shell, a second shielding layer arranged inside the first shielding layer, and a clock signal line group arranged inside the second shielding layer, the clock signal line group comprising a first clock signal line and a second clock signal line; the first clock signal line and the second clock signal line being used for transmitting a differential clock signal.

[0008] In some embodiments of the present application, based on the above technical solution, the Doppler ultrasound imaging system further comprises a metal casing.

[0009] The host computer comprises a first signal ground connected with the metal casing through a plurality of first conductive elements respectively;

[0010] The Doppler ultrasound imaging front-end board comprises a second signal ground connected with the metal casing through a plurality of second conductive elements respectively.

[0011] In some embodiments of the present application, based on the above technical solutions, the Doppler ultrasound imaging system further comprises:

[0012] The blocking electrostatic unit group comprises at least one blocking electrostatic unit, a first end of the blocking electrostatic unit is connected with the preset PCIe interface, and a second end of the blocking electrostatic unit is connected with the first end of the PCIe cable; the blocking electrostatic unit is used for providing high impedance to electrostatic current; the preset PCIe interface is the first PCIe interface or the second PCIe interface;

[0013] The bypass discharge unit group comprises at least one bypass discharge unit, a first end of the bypass discharge unit is connected with the second end of the blocking electrostatic unit, and a second end of the bypass discharge unit is grounded; the bypass discharge unit is used for providing low impedance to electrostatic current; the impedance of the bypass discharge unit is smaller than the impedance of the blocking electrostatic unit.

[0014] In some embodiments of the present application, based on the above technical solutions, the blocking electrostatic unit comprises:

[0015] The first blocking electrostatic module comprises a first end connected with the preset PCIe interface and a second end connected with the first end of the first clock signal line;

[0016] The second blocking electrostatic module comprises a first end connected with the preset PCIe interface and a second end connected with the first end of the second clock signal line;

[0017] The bypass discharge unit comprises:

[0018] The first bypass discharge module comprises a first end connected with the second end of the first blocking electrostatic module and a second end grounded;

[0019] The second bypass discharge module comprises a first end connected with the second end of the second blocking electrostatic module and a second end grounded.

[0020] In some embodiments of the present application, based on the above technical solutions, the group of blocking electrostatic units comprises a first blocking electrostatic unit connected with the first PCIe interface and a second blocking electrostatic unit connected with the second PCIe interface.

[0021] The group of bypass discharge units comprises a first bypass discharge unit connected with the first blocking electrostatic unit and a second bypass discharge unit connected with the second blocking electrostatic unit.

[0022] In some embodiments of the present application, based on the above technical solutions, the group of blocking electrostatic units comprises one or more blocking electrostatic units, and the types of the blocking electrostatic units comprise common mode inductance, ordinary inductance, magnetic beads, optical isolator, magnetic isolator or resistance.

[0023] The group of bypass discharge units comprises one or more bypass discharge units, and the types of the plurality of bypass discharge units are the same, and the type of each bypass discharge unit comprises electrostatic protection device, transient suppression diode or capacitor.

[0024] In some embodiments of the present application, based on the above technical solutions, the first shielding layer comprises a metal woven mesh, or the first shielding layer comprises a combination of a metal woven mesh and a metal foil, and the second shielding layer comprises a metal foil.

[0025] According to an aspect of an embodiment of the present application, a control method of a Doppler ultrasound imaging system is provided, applied to the Doppler ultrasound imaging system as described above, the Doppler ultrasound imaging system comprising a host computer and a Doppler ultrasound imaging front-end board in communication through a PCIe cable, and the method comprises:

[0026] Performing electrostatic testing on the Doppler ultrasound imaging system, and obtaining a communication state in a communication process between the Doppler ultrasound imaging front-end board and the host computer using the PCIe cable;

[0027] If the communication state is communication interruption, performing hot reset on the Doppler ultrasound imaging front-end board;

[0028] After the hot reset of the Doppler ultrasound imaging front-end board is completed, re-establishing the communication connection between the Doppler ultrasound imaging front-end board and the host computer through the PCIe cable.

[0029] In some embodiments of the present application, based on the above technical solutions, obtaining the communication state between the Doppler ultrasound imaging front-end board and the host computer comprises:

[0030] Obtaining communication abnormal error information of the Doppler ultrasound imaging front-end board;

[0031] If the communication exception error information matches a preset communication exception type, the communication state is a communication interruption; the preset communication exception type includes no data uploading of a Doppler ultrasound imaging front-end board, connection timeout of the Doppler ultrasound imaging front-end board, and connection failure of the Doppler ultrasound imaging front-end board.

[0032] According to an aspect of some embodiments of the present application, an electronic device is provided, which includes one or more processors; a storage device configured to store one or more programs, which, when executed by the one or more processors, cause the electronic device to implement the method provided in any of the various optional implementation manners described above.

[0033] According to an aspect of some embodiments of the present application, a computer program medium is provided, which stores computer readable instructions, which, when executed by a processor of a computer, cause the computer to perform the method provided in any of the various optional implementation manners described above.

[0034] According to an aspect of some embodiments of the present application, a computer program product or computer program is provided, which includes computer instructions stored in a computer readable storage medium. A processor of a computer device reads the computer instructions from the computer readable storage medium, and the processor executes the computer instructions to cause the computer device to perform the method provided in any of the various optional implementation manners described above.

[0035] In the technical solution provided in the embodiments of the present application, the host computer of the Doppler ultrasound system has a PCIe adapter board, a first PCIe interface of the PCIe adapter board is connected with a second PCIe interface of the Doppler ultrasound imaging front-end board through a PCIe cable. Compared with the mode of directly connecting the host computer and the Doppler ultrasound imaging front-end board in a board-to-board manner, the design flexibility is higher, and the internal hardware structure of the Doppler ultrasound system can be designed flexibly, rather than being able to be connected together only. In addition, the PCIe cable includes a PCIe clock shielding cable shell, a first shielding layer attached to the inner wall of the PCIe clock shielding cable shell, a second shielding layer arranged inside the first shielding layer, and a clock signal line group arranged inside the second shielding layer. The clock signal line group includes a first clock signal line and a second clock signal line, and the first clock signal line and the second clock signal line are used to transmit differential clock signals. In this way, the interference of electrostatic discharge on the differential clock signals can be shielded through multiple shielding layers, which focuses on shielding electrostatic discharge for the transmission of differential clock signals, and adaptively avoids the problem that the differential clock signals are easily caused to be missing under the interference of electrostatic discharge, and can effectively and specifically shield the interference of electrostatic discharge on the ultrasound function, to a certain extent, to ensure the integrity of the ultrasound function of the ultrasound imaging front-end board.

[0036] Other features and advantages of the present application will become apparent from the following detailed description, taken in conjunction with the accompanying drawings.

[0037] It should be understood that the foregoing general description and the following detailed description are merely examples, and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS

[0038] The foregoing and other objects, features and advantages of the application will be more readily understood upon consideration of the following detailed description, taken in conjunction with the accompanying drawings.

[0039] Figure 1 A structural schematic diagram of a Doppler ultrasound imaging system is shown according to one embodiment of the present application.

[0040] Figure 2 A structural schematic diagram of a PCIe cable is shown according to one embodiment of the present application.

[0041] Figure 3 A structural schematic diagram of a Doppler ultrasound imaging system is shown according to one embodiment of the present application.

[0042] Figure 4 A structural schematic diagram of a Doppler ultrasound imaging system is shown according to one embodiment of the present application.

[0043] Figure 5 A flowchart of a control method of a Doppler ultrasound imaging system is shown according to one embodiment of the present application.

[0044] Figure 6 A flowchart of a control method is shown according to one embodiment of the present application.

[0045] Figure 7 A schematic diagram of an overall protection mode is shown according to one embodiment of the present application.

[0046] REFERENCE SIGNS:

[0047] Host computer (PC) - 10; PCIe adapter board - 11; Gnd1 - 12; PCIe cable - 20; PCIe clock shielding cable shell - 21; first shielding layer 22; second shielding layer 23; clock signal line group - 24; clock shielding line - 25; Doppler ultrasound imaging front-end board (PCIe device) - 30; Gnd2 - 31; metal machine shell - 40; blocking device - 50; bypass bleeder device - 60. DETAILED DESCRIPTION

[0048] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations can be implemented in any of various forms, and are not necessarily limited to the specific implementations set forth herein; rather, examples of implementations are shown and described, such that one skilled in the art can implement an example of an implementation, and with a full understanding of the best of the available technology. The application is not to be limited to the specific implementations described and as illustrated, but only as indicated by the appended claims. Like reference numerals can be used to denote like components throughout the accompanying drawings.

[0049] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more example implementations. In the following description, numerous specific details are provided to give a thorough understanding of example implementations. One skilled in the relevant art will recognize, however, that the implementations can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the application.

[0050] Some of the block diagrams in the drawings are functional entities that do not necessarily correspond to physically or logically separate entities. These functional entities can be implemented in software, or in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0051] Figure 1 A structural diagram of a Doppler ultrasound imaging system is shown according to an embodiment of the application, which includes a host computer 10, a Doppler ultrasound imaging front-end board 30, and a Peripheral Component Interconnect Express (PCIe) cable 20. Wherein:

[0052] The host computer 10 includes a PCIe adapter board 11, which includes a first PCIe interface. The host computer 10 is configured to communicate with the Doppler ultrasound imaging front-end board 30 through the first PCIe interface, and receive a large amount of data collected by the Doppler ultrasound imaging front-end board 30. In this case, the communication transmission bandwidth between the host computer 10 and the Doppler ultrasound imaging front-end board 30 is relatively large, and the requirement for high-speed transmission is relatively high, so it is necessary to use PCIe interconnection for communication. When using PCIe for communication, there will be a large Electro-Static discharge (ESD) problem, which is particularly obvious when using cable transmission, and it is difficult to pass the electrostatic standard requirement, and the electrostatic problem is manifested as communication disconnection and loss of ultrasound function.

[0053] The Doppler ultrasound imaging front-end board 30 comprises a second PCIe interface. The Doppler ultrasound imaging front-end board 30 is configured to collect ultrasound imaging data and transmit the ultrasound imaging data to the host computer 10 through the second PCIe interface.

[0054] The PCIe cable 20 comprises a PCIe clock shielding cable shell, a first shielding layer attached to an inner wall of the PCIe clock shielding cable shell, a second shielding layer arranged inside the first shielding layer, and a clock signal line group arranged inside the second shielding layer. The clock signal line group comprises a first clock signal line and a second clock signal line. The first clock signal line and the second clock signal line are configured to transmit a differential clock signal.

[0055] In the process of transmitting signals by using the PCIe, the reference clock signal is more likely to cause a fault of the ultrasound imaging system and result in a loss of ultrasound function when the reference clock signal is interfered by electrostatic discharge, compared with other types of signals. Therefore, the embodiment focuses on shielding electrostatic discharge of the differential clock signal to ensure the integrity of the ultrasound function as a whole.

[0056] Figure 2 A structural diagram of a PCIe cable according to an embodiment of the present application is shown. The PCIe cable comprises a PCIe clock shielding cable shell 21, a first shielding layer 22 attached to an inner wall of the PCIe clock shielding cable shell 21, a second shielding layer 23 arranged inside the first shielding layer 22, and a clock signal line group 24 arranged inside the second shielding layer 23. The clock signal line group 24 comprises a first clock signal line and a second clock signal line. The first shielding layer comprises a metal woven mesh, or a combination of a metal woven mesh and a metal foil. The second shielding layer comprises a metal foil.

[0057] The first clock signal line and the second clock signal line form a differential clock signal pair. The first shielding layer is an outer shielding layer, which can be a metal woven mesh or a combination of a metal woven mesh and a metal foil. The second shielding layer is an inner shielding layer, which can be an aluminum foil, a silver foil, a copper foil, or the like. Compared with the case where a metal woven mesh is used for the second shielding layer, the case where a metal foil is used is more mature in process and is relatively easier to prepare.

[0058] In this way, the interference of electrostatic discharge on the differential clock signal is avoided.

[0059] As shown in FIG. 1, the ultrasound imaging system comprises a host computer 10, a Doppler ultrasound imaging front-end board 30, and a PCIe cable 20. Figure 3 The host computer 10 comprises a first PCIe interface. The first PCIe interface is configured to transmit a reference clock signal to the Doppler ultrasound imaging front-end board 30. The Doppler ultrasound imaging front-end board 30 comprises a second PCIe interface. The Doppler ultrasound imaging front-end board 30 is configured to collect ultrasound imaging data and transmit the ultrasound imaging data to the host computer 10 through the second PCIe interface. Figure 3A structural diagram of a Doppler ultrasound imaging system according to an embodiment of the present application is shown, which includes a PC (host computer) 10, an ultrasound imaging front-end board PCIe device 30, and a metal casing 40, wherein the PC 10 includes a first signal ground Gnd1 (12), the PCIe device 30 includes a second signal ground Gnd2 (31), and the casing ground of the metal casing 40 is PE, Gnd1 (12) = Gnd2 (31) = PE.

[0060] In an embodiment, the Doppler ultrasound imaging system further includes the metal casing 40; the host computer 10 includes a first signal ground, which is connected to the metal casing 40 through a plurality of first conductive elements respectively; the Doppler ultrasound imaging front-end board 30 includes a second signal ground, which is connected to the metal casing 40 through a plurality of second conductive elements respectively.

[0061] In order to further shield electrostatic discharge, the Doppler ultrasound imaging front-end board 30 and the host computer 10 can be made to have the same ground potential in the above manner. In the case where the Doppler ultrasound imaging front-end board 30 and the host computer 10 have the same ground potential, even if there is electrostatic discharge interference, data will not be disturbed to cause disorder.

[0062] In an embodiment, the first conductive elements can be screws or springs, and the first signal ground of the host computer 10 is connected to the metal casing 40 through the screws or springs in multiple points. The second conductive elements can be screws or springs, and the second signal ground of the Doppler ultrasound imaging front-end board 30 is connected to the metal casing 40 through the screws or springs in multiple points. The metal casing 40 is a ground plane, which can ensure the same ground potential to the maximum extent.

[0063] In the above manner, the Doppler ultrasound imaging front-end board 30 and the host computer 10 are connected to the metal casing ground in multiple points, so that data disorder caused by electrostatic interference is avoided to some extent, and the differential clock signal is not easily affected by electrostatic discharge interference to cause ultrasound function failure in combination with multiple shielding layers.

[0064] In an embodiment, the Doppler ultrasound imaging system includes a host computer, a blocking static unit group, a bypass discharge unit group, a PCIe cable, and a Doppler ultrasound imaging front-end board. Wherein:

[0065] The blocking static unit group includes at least one blocking static unit, a first end of the blocking static unit is connected to a preset PCIe interface, and a second end of the blocking static unit is connected to a first end of the PCIe cable; the blocking static unit is used to provide high impedance to electrostatic current; the preset PCIe interface is a first PCIe interface or a second PCIe interface. Through the blocking static unit group, the electrostatic interference and shielding are achieved by using a high-impedance device to block the passage of static electricity.

[0066] The bypass discharge unit group comprises at least one bypass discharge unit, a first end of the bypass discharge unit is connected with the second end of the blocking static unit, and a second end of the bypass discharge unit is grounded; the bypass discharge unit is used to provide low impedance to the static current; and the impedance of the bypass discharge unit is smaller than the impedance of the blocking static unit. Through the bypass discharge unit group, the static electricity is guided to the ground end by the device with low impedance, so that the effect of static discharge is achieved.

[0067] In the above manner, if the static interference has been coupled on the clock line, the static current can be blocked by the blocking static unit group to prevent it from flowing into the host computer or the PCIe device, and the bypass discharge unit group can provide a new path for the static current to flow through the new path without entering the host computer or the PCIe device through the clock line. The new path plays a role of "flood discharge", and through the double effects of the bypass discharge unit group and the blocking static unit group, the static electricity can be well protected by the two different circuit protection methods of blocking and discharging.

[0068] Since the signal sensitive to static electricity is mainly a differential clock signal, when the shielded cable cannot completely block the static interference, the interference signal will be coupled to the differential clock signal, thereby causing a fault. In order to further enhance the static discharge interference capability, the blocking static unit group and the bypass discharge unit group can be connected between the host computer and the PCIe cable to shield the differential clock signal transmitted by the host computer side from static discharge interference; or the blocking static unit group and the bypass discharge unit group can be connected between the ultrasonic imaging front-end board and the PCIe cable to protect the differential clock signal transmitted by the ultrasonic imaging front-end board side from static discharge interference.

[0069] In an embodiment, the blocking static unit comprises: a first blocking static module, a first end of the first blocking static module is connected with the preset PCIe interface, and a second end of the first blocking static module is connected with a first end of the first clock signal line; and a second blocking static module, a first end of the second blocking static module is connected with the preset PCIe interface, and a second end of the second blocking static module is connected with a first end of the second clock signal line.

[0070] The bypass discharge unit comprises: a first bypass discharge module, a first end of the first bypass discharge module is connected with the second end of the first blocking static module, and a second end of the first bypass discharge module is grounded; and a second bypass discharge module, a first end of the second bypass discharge module is connected with the second end of the second blocking static module, and a second end of the second bypass discharge module is grounded.

[0071] The blocking static electricity unit includes two blocking static electricity modules corresponding to the first clock signal line and the second clock signal line respectively to shield the differential clock signals of the two clock signal lines from electrostatic discharge. The two ends of the two blocking static electricity modules are connected to the host computer and the first end of the PCIe cable, thereby realizing the protection of the differential clock signals transmitted by the host computer from electrostatic discharge interference. The bypass discharge unit includes two bypass discharge modules corresponding to the first clock signal line and the second clock signal line respectively, and the two bypass discharge modules correspond to the two blocking static electricity modules respectively. The second end of the bypass discharge module is also grounded to discharge the electrostatic current, thereby further protecting the differential clock signals transmitted by the host computer from electrostatic discharge interference.

[0072] In addition, two blocking static electricity modules and two bypass discharge modules can be connected on one side of the ultrasonic imaging front-end board. The two ends of the two blocking static electricity modules are connected to the ultrasonic imaging front-end board and the second end of the PCIe cable respectively, and the bypass discharge modules corresponding to the two blocking static electricity modules are arranged on one side of the ultrasonic imaging front-end board, thereby realizing the further electrostatic discharge protection effect on one side of the ultrasonic imaging front-end board.

[0073] In an embodiment, the blocking static electricity unit includes a plurality of first blocking static electricity modules and a plurality of second blocking static electricity modules. The bypass discharge unit includes a plurality of first bypass discharge modules and a plurality of second bypass discharge modules, thereby improving the protection effect of electrostatic discharge.

[0074] In an embodiment, the blocking static electricity unit group includes a first blocking static electricity unit connected to the first PCIe interface and a second blocking static electricity unit connected to the second PCIe interface; the bypass discharge module includes a first bypass discharge unit connected to the first blocking static electricity unit and a second bypass discharge unit connected to the second blocking static electricity unit. The first blocking static electricity unit includes a first blocking static electricity module and a second blocking static electricity module, and the corresponding preset PCIe interface is the first PCIe interface. The first bypass discharge unit includes a first bypass discharge module and a second bypass discharge module, and the corresponding PCIe interface is the first PCIe interface.

[0075] In an embodiment, the number of first blocking static electricity modules is one, and one first blocking static electricity module can simultaneously protect two clock lines. The first blocking static electricity module is, for example, a common mode inductor, an optical isolator, a magnetic isolator, etc.

[0076] In an embodiment, the number of first blocking static electricity modules is two, and the first blocking static electricity module is a 2PIN blocking static electricity device. The first blocking static electricity module is, for example, a magnetic bead, an inductor, etc.

[0077] The second blocking static unit comprises a third blocking static module and a fourth blocking static module, and the first end of the third blocking static module and the first end of the fourth blocking static module are connected with the second PCIe interface, and the second end of the third blocking static module and the second end of the fourth blocking static module are connected with the second PCIe interface. The second bypass discharge unit comprises a third bypass discharge module and a fourth bypass discharge module, and the first end of the third bypass discharge module and the first end of the fourth bypass discharge module are connected with the second end of the third blocking static module and the second end of the fourth blocking static module, and the second end of the third bypass discharge module and the second end of the fourth bypass discharge module are grounded.

[0078] In the above manner, the static electricity is blocked and discharged on the host computer side and the ultrasonic imaging front-end board side, so that the differential clock signal transmission between the host computer and the ultrasonic imaging front-end board can be protected from electrostatic discharge to the greatest extent; and the excellent electrostatic protection effect is achieved by combining multiple shielding layers and multiple grounding points.

[0079] Figure 4 A structure diagram of a Doppler ultrasonic imaging system according to an embodiment of the present application is shown, as shown in the figure, Figure 4 The Doppler ultrasonic imaging system comprises a host computer 10, blocking devices 50, bypass discharge devices 60, a clock shielding line 25 and a PCIe device 30. One end of the PC10 is connected with one end of two blocking devices 50, and the other end of the two blocking devices 50 is connected with the bypass discharge devices 60 and one end of the clock shielding line 25, and the other end of the two bypass discharge devices 60 is grounded. The other end of the clock shielding line 25 is connected with one end of the two blocking devices 50 and one end of the two bypass discharge devices 60, and the other end of the two blocking devices 50 is connected with the PCIe device 30, and the other end of the two bypass discharge devices 60 is grounded.

[0080] In an embodiment, the blocking static unit group comprises one or more blocking static units, and the types of the blocking static units include common-mode inductance, optical isolator, magnetic isolator or resistor; the bypass discharge unit group comprises one or more bypass discharge units, and the types of the bypass discharge units can be the same, and the types of the bypass discharge units include electrostatic protection device, transient suppression diode or capacitor.

[0081] In an embodiment, the bypass discharge module can adopt an ESD protection device suitable for high-speed signal transmission, and the ESD protection device can bypass and discharge the electrostatic current. The blocking static module can adopt common-mode inductance, and the static electricity belongs to common-mode interference, so that the common-mode inductance can cut off the static electricity loop.

[0082] In an embodiment, the blocking static electricity module can also adopt devices capable of cutting off or limiting static electricity current, such as optical isolators, magnetic isolators, and resistors, to play a protective role, and the bypass discharge module can adopt devices capable of discharging static electricity current, such as TVS tubes and small capacitors.

[0083] In the above manner, the cumbersome operation of sorting various bypass discharge units can be avoided in industrial production, thereby improving efficiency.

[0084] In an embodiment, the types of the plurality of blocking static electricity units can be different, and the types of the plurality of bypass discharge units can also be different, so that further static electricity discharge protection is performed by the blocking static electricity units and the bypass discharge units of different types, thereby improving the static electricity discharge protection effect.

[0085] Figure 5 A flowchart of a control method of a Doppler ultrasound imaging system is shown, the Doppler ultrasound imaging system including a host computer and a Doppler ultrasound imaging front-end board in communication through a PCIe cable, and the method includes:

[0086] Step S710: Perform static electricity testing on the Doppler ultrasound imaging system, and acquire a communication state in a communication process between the Doppler ultrasound imaging front-end board and the host computer through the PCIe cable.

[0087] Step S720: If the communication state is communication interruption, perform a hot reset on the Doppler ultrasound imaging front-end board.

[0088] Step S730: After the hot reset of the Doppler ultrasound imaging front-end board is completed, reestablish a communication connection between the Doppler ultrasound imaging front-end board and the host computer through the PCIe cable.

[0089] In an embodiment, acquiring the communication state between the Doppler ultrasound imaging front-end board and the host computer includes: acquiring communication abnormal error information of the Doppler ultrasound imaging front-end board; if the communication abnormal error information matches a preset communication abnormal type, the communication state is communication interruption; the preset communication abnormal type includes no data upload of the Doppler ultrasound imaging front-end board, connection timeout of the Doppler ultrasound imaging front-end board, and connection failure of the Doppler ultrasound imaging front-end board.

[0090] Figure 6 A schematic diagram of the overall flow of the control method is shown, the control method including: performing static electricity testing, detecting whether one of PCIe no data upload, PCIe device connection timeout, and PCIe device connection failure occurs, if one of the three error prompts occurs, the PCIe communication is interrupted, and a hot reset is performed, the PCIe is reconnected after the hot reset, and the function is restored.

[0091] In addition, other abnormal error conditions can also be set, and can be used as one of the triggering conditions of the reset logic. The triggering conditions can be continuously added in actual applications to enrich the types of detected communication abnormalities.

[0092] Figure 7 A schematic diagram of the overall protection mode according to an embodiment of the present application is shown. Referring to FIG. 1, in the presence of electrostatic interference, most electrostatic interference cannot enter the internal shielding layer through multiple shielding and multi-point grounding. For the small amount of electrostatic interference that cannot be completely shielded, further hardware protection is provided through the hardware of blocking static electricity and bypass discharge. In this way, most electrostatic interference can be filtered out. For the extremely small amount of electrostatic interference that cannot be filtered out, the Doppler ultrasound imaging system is restored to normal operation through software reset in the case of detecting PCIe abnormalities. Figure 7

[0093] In the above manner, multiple shielding, maintaining the same ground potential, and blocking and discharging double protection are combined in hardware, and error reporting and reminder are combined in software to perform hot reset when electrostatic discharge abnormalities occur, so that the PCIe is reconnected. Thus, the problem of loss of function of the Doppler ultrasound imaging system caused by electrostatic discharge can be effectively avoided.

[0094] From the above description of the embodiments, those skilled in the art can easily understand that the example embodiments described herein can be implemented by software or by software combined with necessary hardware. Therefore, the technical solutions according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a U disk, a mobile hard disk, etc.) or on a network, and includes a plurality of instructions to make a computing device execute the method according to the embodiments of the present application.

[0095] In the example embodiments of the present application, a computer-readable storage medium having computer-readable instructions stored thereon is also provided. When the computer-readable instructions are executed by a processor of a computer, the computer executes the method described in the method embodiment part.

[0096] According to an embodiment of the present application, a program product for implementing the method in the above method embodiment is also provided, which can be in the form of a portable compact disc read-only memory (CD-ROM) and includes program code, and can be run on a terminal device, such as a personal computer. However, the program product of the present application is not limited to this. In this document, a readable storage medium can be any tangible medium containing or storing a program, which can be used by or in conjunction with an instruction execution system, device or apparatus. ​

[0097] The program product can employ any combination of one or more computer readable media or storage media. The computer readable media or storage media can be a computer readable signal medium or a computer readable storage medium. A computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0098] A computer readable signal medium can include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated signal can take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium can be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate or transport programming code.

[0099] Program code embodied on a computer readable medium can be transmitted using any appropriate medium, including but not limited to wireless, wired, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0100] Computer program code for carrying out operations of the present application can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++, or the like, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computing device, partly on the user's computing device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device or entirely on the remote computing device or server. In the latter scenario, the remote computing device can be connected to the user's computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computing device, such as through the Internet using an Internet Service Provider. In some embodiments, electronic circuitry including, for example, programmable logic circuitry, application specific circuitry, or field programmable gate array (FPGA) circuitry, includes the circuitry employed in the microprocessors, optical chips, central processing units (CPU), graphics processing units (GPU), digital signal processors (DSP), digital signal processing devices (DSPD), or digital signal processing device (DSPD), programmable logic devices (PLD), programmable logic (PL), controllers, state machines, gated logic, discrete hardware components, or any other processing circuitry, functioning individually or in combination, and are

[0101] It should be noted that, although several modules or units of the devices for action execution are mentioned in the above detailed description, such division is not mandatory. Indeed, according to an embodiment of the application, the features and functionalities of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functionalities of one module or unit described above can be further divided into several modules or units embodied.

[0102] Furthermore, although the various steps of the methods of the present application are described in a particular order in the figures, this is not required or implied as to the order of execution of the steps, nor is it required that all of the steps be executed to achieve the desired result. Additionally or alternatively, certain steps can be omitted, multiple steps can be combined into one step, one step can be broken into multiple steps, etc.

[0103] From the above description of embodiments, those skilled in the art will readily perceive that the example embodiments described herein can be implemented by software and / or by hardware coupled with software. Accordingly, the technical solutions according to the embodiments of the present application can be embodied in the form of a software product. The software product can be stored in a non-volatile storage medium (e.g., a CD-ROM, a USB flash drive, a mobile hard disk, etc.) or on a network, and includes a number of instructions for causing a computing device to perform the methods according to the embodiments of the present application.

[0104] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the present application cover any and all variations of the application that come within the scope of the claims and a concept of the application. It is intended that the specification and examples be considered exemplary only, with the true scope and spirit of the application being indicated by the following claims.

Claims

1. A Doppler ultrasound imaging system, characterized by, The application relates to a Doppler ultrasonic imaging system. The host computer comprises a first peripheral component interconnect express (PCIe) adapter plate, which comprises a first PCIe interface. The Doppler ultrasonic imaging front-end plate comprises a second PCIe interface. The PCIe cable is connected to the first PCIe interface at a first end and connected to the second PCIe interface at a second end, and is used for transmitting signals between the first PCIe interface and the second PCIe interface.

2. The Doppler ultrasound imaging system of claim 1, wherein, The PCIe cable comprises a PCIe clock shielding cable shell, a first shielding layer attached to an inner wall of the PCIe clock shielding cable shell, a second shielding layer arranged inside the first shielding layer, and a clock signal line group arranged inside the second shielding layer, wherein the clock signal line group comprises a first clock signal line and a second clock signal line. The Doppler ultrasonic imaging system further comprises a metal casing. The host computer comprises a first signal ground connected to the metal casing through a plurality of first conductive elements.

3. The Doppler ultrasound imaging system of claim 1, wherein, The Doppler ultrasonic imaging front-end plate comprises a second signal ground connected to the metal casing through a plurality of second conductive elements. The Doppler ultrasonic imaging system further comprises: A blocking electrostatic unit group comprising at least one blocking electrostatic unit, wherein a first end of the blocking electrostatic unit is connected to a preset PCIe interface, and a second end of the blocking electrostatic unit is connected to the PCIe cable.

4. The Doppler ultrasound imaging system of claim 3, wherein, A bypass discharge unit group comprising at least one bypass discharge unit, wherein a first end of the bypass discharge unit is connected to the second end of the blocking electrostatic unit, and a second end of the bypass discharge unit is grounded. The blocking electrostatic unit comprises: A first blocking electrostatic module, wherein a first end of the first blocking electrostatic module is connected to the preset PCIe interface, and a second end of the first blocking electrostatic module is connected to the first clock signal line. A second blocking electrostatic module, wherein a first end of the second blocking electrostatic module is connected to the preset PCIe interface, and a second end of the second blocking electrostatic module is connected to the second clock signal line. The bypass discharge unit comprises: A first bypass discharge module, wherein a first end of the first bypass discharge module is connected to the second end of the first blocking electrostatic module, and a second end of the first bypass discharge module is grounded. A second bypass discharge module, wherein a first end of the second bypass discharge module is connected to the second end of the second blocking electrostatic module, and a second end of the second bypass discharge module is grounded.

5. The Doppler ultrasound imaging system of claim 3, wherein, The blocking electrostatic unit group comprises a first blocking electrostatic unit connected with the first PCIe interface and a second blocking electrostatic unit connected with the second PCIe interface. The bypass discharge unit group comprises a first bypass discharge unit connected with the first blocking electrostatic unit and a second bypass discharge unit connected with the second blocking electrostatic unit.

6. The Doppler ultrasound imaging system of claim 3, wherein, The blocking electrostatic unit group comprises one or more blocking electrostatic units, and the types of the blocking electrostatic units comprise common mode inductance, general inductance, magnetic beads, optical isolator, magnetic isolator or resistance. The bypass discharge unit group comprises one or more bypass discharge units, and the types of the bypass discharge units are the same, and the types of the bypass discharge units comprise electrostatic protection device, transient suppression diode or capacitor.

7. The Doppler ultrasound imaging system of claim 1, wherein, The first shielding layer comprises metal woven mesh, or the first shielding layer comprises the combination of metal woven mesh and metal foil, and the second shielding layer comprises metal foil.

8. A control method of a Doppler ultrasound imaging system, characterized in that, The method is applied to the Doppler ultrasound imaging system of any one of claims 1 to 7, the Doppler ultrasound imaging system comprising a host computer and a Doppler ultrasound imaging front-end board in communication through a PCIe cable, and the method comprises: performing electrostatic test on the Doppler ultrasound imaging system and obtaining the communication state of the Doppler ultrasound imaging front-end board and the host computer in communication through the PCIe cable; if the communication state is communication interruption, performing hot reset on the Doppler ultrasound imaging front-end board; after the hot reset of the Doppler ultrasound imaging front-end board is completed, reestablishing the communication connection between the Doppler ultrasound imaging front-end board and the host computer through the PCIe cable.

9. The method of claim 8, wherein, Obtaining the communication state between the Doppler ultrasound imaging front-end board and the host computer comprises: obtaining communication exception error information of the Doppler ultrasound imaging front-end board; if the communication exception error information matches a preset communication exception type, the communication state is communication interruption; the preset communication exception type comprises no data upload of the Doppler ultrasound imaging front-end board, connection timeout of the Doppler ultrasound imaging front-end board and connection failure of the Doppler ultrasound imaging front-end board.

10. A computer-readable storage medium, characterized in that, The computer readable instructions stored thereon, when executed by the processor of the computer, cause the computer to perform the method of claim 8 or 9.

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