Touch screen pulse generator and portable pulse testing device

Abstract

The application provides a touch screen pulse generator and a portable pulse test device, and relates to the technical field of power device testing.The touch screen pulse generator comprises a touch screen, a pulse generation circuit, a first optical fiber sending module and a second optical fiber sending module; the pulse generation circuit is connected with the touch screen through a display interface; a first optical fiber interface of the pulse generation circuit is connected with the first optical fiber sending module, and a second optical fiber interface of the pulse generation circuit is connected with the second optical fiber sending module, so as to output a pulse test signal to a device under test through the first optical fiber sending module or the second optical fiber sending module. Through the device, the technical problems of complex assembly, limited application range and low test efficiency in the prior art can be relieved, and the effects of reducing assembly difficulty, expanding the use range and improving the test efficiency can be achieved.

Description

Technical Field

[0001] This invention relates to the field of power device testing technology, and in particular to a touch screen pulse generator and a portable pulse testing device. Background Technology

[0002] Double-pulse testing is a crucial testing step for power devices, with the pulse signal generator being a key tooling requirement. In practical applications, the "double-pulse testing method" is often used to understand the more realistic performance of power devices in specific applications. Power electronic equipment typically contains multiple power devices, requiring individual testing to ensure the stability of each device's operating state. Existing pulse test transmitters require connection to a host computer, have mostly fixed assembly structures, can only be operated manually without a touchscreen, involve numerous testing steps, are inefficient, and increase testing time. They cannot effectively meet the actual testing needs of different devices. In other words, existing pulse test devices suffer from complex assembly, limited applicability, and low testing efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a touch screen pulse generator and a portable pulse testing device to alleviate the technical problems of complex assembly, limited applicability, and low testing efficiency in the prior art.

[0004] In a first aspect, embodiments of the present invention provide a touch screen pulse generator, comprising: a touch screen, a pulse generation circuit, a first optical fiber transmission module, and a second optical fiber transmission module;

[0005] The pulse generating circuit is connected to the touch screen via a display interface; the first optical fiber interface of the pulse generating circuit is connected to the first optical fiber transmitting module, and the second optical fiber interface of the pulse generating circuit is connected to the second optical fiber transmitting module, so as to output a pulse test signal to the device under test through the first optical fiber transmitting module or the second optical fiber transmitting module.

[0006] In some possible implementations, the pulse generation circuit includes a detection module and a communication configuration module; the detection module communicates with the Universal Serial Bus (USB) via a programming interface; and the communication configuration module is used to set the data channel and baud rate for bus communication.

[0007] In some possible implementations, it further includes: a network module; the pulse generating circuit is connected to the network module via a network interface to connect to an external device via the network module.

[0008] In some possible implementations, the pulse generating circuit includes a main control chip and a field-programmable gate array (FPGA); the main control chip is connected to the touch screen via a display interface; and the FPGA is connected to the network module via a network interface.

[0009] The first data transmission terminal of the aforementioned main control chip is connected to the second data transmission terminal of the aforementioned field-programmable gate array (FPGA); the first optical fiber interface of the aforementioned FPGA is connected to the aforementioned first optical fiber transmitting module, and the second optical fiber interface of the aforementioned FPGA is connected to the aforementioned second optical fiber transmitting module.

[0010] Secondly, embodiments of the present invention provide a portable pulse testing device, including a housing and a touch screen pulse generator as described in any one of the first aspects. The housing is used to form an accommodating space, in which the touch screen, the pulse generating circuit, the first optical fiber transmitting module, and the second optical fiber transmitting module are all placed. The upper surface of the housing is provided as a perforated window, through which the touch screen is presented on the housing.

[0011] In some possible implementations, the circuit also includes a printed circuit board placed within the accommodating space, wherein the pulse generating circuit, the first optical fiber transmitting module, and the second optical fiber transmitting module are all arranged on the printed circuit board.

[0012] In some possible implementations, the first optical fiber transmitting module and the second optical fiber transmitting module have different transmission wavelengths; it also includes a plurality of first optical fiber receiving modules, which are arranged alternately side by side in a first area above the printed circuit board; each of the first optical fiber transmitting modules and each of the first optical fiber receiving modules extends from the top of the housing.

[0013] In some possible implementations, a plurality of second optical fiber receiving modules are also included, and the plurality of second optical fiber transmitting modules and the plurality of second optical fiber receiving modules are arranged alternately side by side in a second region above the printed circuit board; each of the second optical fiber receiving modules and each of the second optical fiber transmitting modules extends from the top of the housing.

[0014] In some possible implementations, an indicator light and a button are also included; the housing is provided with a first through hole and a second through hole, the indicator light is led out of the housing through the first through hole, and the button is led out of the upper surface of the housing through the second through hole.

[0015] In some possible implementations, the indicator light is connected to a first data interface of the pulse generating circuit, and the button is connected to a second data interface of the pulse generating circuit; wherein, the pulse generating circuit is used to control the indicator light to illuminate when a fault signal is received from the device under test; the pulse generating circuit is also used to control the indicator light to turn off when a reset signal is received; the reset signal is generated when the button is pressed and sent to the pulse generating circuit.

[0016] This invention provides a touchscreen pulse generator and a portable pulse testing device. The touchscreen pulse generator includes a touchscreen, a pulse generation circuit, a first optical fiber transmission module, and a second optical fiber transmission module. The pulse generation circuit is connected to the touchscreen via a display interface. The first optical fiber interface of the pulse generation circuit is connected to the first optical fiber transmission module, and the second optical fiber interface of the pulse generation circuit is connected to the second optical fiber transmission module, so as to output pulse test signals to the device under test through either the first or second optical fiber transmission module. This device can alleviate the technical problems of complex assembly, limited applicability, and low testing efficiency in existing technologies, achieving the effects of reducing assembly difficulty, expanding the scope of application, and improving testing efficiency. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a touch screen pulse generator provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the connection relationship of a touch screen pulse generator device provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram illustrating the installation principle of a touchscreen pulse generator device according to an embodiment of the present invention.

[0021] Figure 4 A schematic diagram of the interface function of a touch screen pulse generator device provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the interface operation of a touch screen pulse generator device provided in an embodiment of the present invention;

[0023] Figure 6The circuit diagram shows a first and second optical fiber transmitting module of a touch screen pulse generator device provided in an embodiment of the present invention.

[0024] Reference numerals: 2-Housing; 3-Touchscreen; 4-Printed circuit board; 5-Lithium battery; 6-Network interface; 7-Power socket; 8-Main control chip; 9-FPGA; 10-Button; 11-Indicator light; 12-Bluetooth module; 13-WIFI module; 14-Lora module; 15-First transceiver; 16-Second transceiver; 120-Pulse generating circuit; 130-First fiber optic transmission module; 140-Second fiber optic transmission module. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0027] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Some embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0028] Double-pulse testing is a crucial testing step for power devices, with the pulse signal generator being a key tooling component. In practical applications, the double-pulse testing method is often used to understand the more realistic performance of power devices in specific applications. This includes: evaluating the function and performance of the driver board; obtaining key parameters of the power device during turn-on and turn-off; identifying any inappropriate oscillations during turn-on and turn-off; assessing the reverse recovery behavior and safety margin of diodes; and determining the appropriateness of the voltage spike during turn-off and whether there are any inappropriate oscillations after turn-off. Power electronic devices typically contain multiple power devices, requiring individual testing to ensure the stability of each device's operating state. Existing pulse test generators require connection to a host computer, have mostly fixed assembly structures, and can only be operated manually without a touchscreen. This results in numerous testing steps, low efficiency, and increased testing time. They cannot effectively meet the actual testing needs of different devices. In other words, existing pulse test devices suffer from complex assembly, limited applicability, and low testing efficiency.

[0029] Based on this, embodiments of the present invention provide a touch screen pulse generator and a portable pulse testing device to alleviate the technical problems of complex assembly, limited applicability, and low testing efficiency in the prior art.

[0030] To facilitate understanding of this embodiment, a detailed description of a touchscreen pulse generator disclosed in this embodiment of the invention will be provided first. (See [link to relevant documentation]). Figure 1 The schematic diagram of a touch screen pulse generator shown mainly includes: a touch screen 3, a pulse generation circuit 120, a first optical fiber transmission module 130, and a second optical fiber transmission module 140.

[0031] The pulse generating circuit 120 is connected to the touch screen 3 via a display interface; the first optical fiber interface of the pulse generating circuit 120 is connected to the first optical fiber transmitting module 130, and the second optical fiber interface of the pulse generating circuit 120 is connected to the second optical fiber transmitting module 140, so as to output pulse test signals to the device under test through the first optical fiber transmitting module or the second optical fiber transmitting module.

[0032] In one embodiment, the pulse generating circuit includes a detection module and a communication configuration module; the detection module completes information communication with the Universal Serial Bus (USB) through a programming interface; the communication configuration module is used to set the data channel and baud rate for bus communication.

[0033] In one embodiment, the touchscreen pulse generator further includes a network module; the pulse generation circuit is connected to the network module via a network interface to connect to an external device via the network module.

[0034] In one embodiment, the pulse generation circuit includes a main control chip and a field-programmable gate array (FPGA); the main control chip is connected to the touch screen via a display interface; and the FPGA is connected to the network module via a network interface.

[0035] The first data transmission terminal of the main control chip is connected to the second data transmission terminal of the field-programmable gate array (FPGA); the first fiber optic interface of the FPGA is connected to the first fiber optic transmission module, and the second fiber optic interface of the FPGA is connected to the second fiber optic transmission module.

[0036] In addition, this invention also provides a portable pulse testing device, including a housing and a touch screen pulse generator as described in any of the above embodiments. The housing forms an accommodating space, in which the touch screen, pulse generation circuit, first optical fiber transmission module, and second optical fiber transmission module are all placed; the upper surface of the housing is configured as a perforated window, through which the touch screen is presented on the housing.

[0037] In one embodiment, the device further includes a printed circuit board placed within the receiving space, wherein the pulse generating circuit, the first optical fiber transmitting module, and the second optical fiber transmitting module are all arranged on the printed circuit board.

[0038] In one embodiment, the first optical fiber transmitting module and the second optical fiber transmitting module have different transmission wavelengths; it also includes a plurality of first optical fiber receiving modules, which are arranged alternately side by side in a first area above the printed circuit board; each first optical fiber transmitting module and each first optical fiber receiving module extends from the top of the housing.

[0039] In one embodiment, the system further includes a plurality of second optical fiber receiving modules, and a plurality of second optical fiber transmitting modules and a plurality of second optical fiber receiving modules are arranged alternately side by side in a second region above the printed circuit board; each second optical fiber receiving module and each second optical fiber transmitting module extends from the top of the housing.

[0040] In one embodiment, it further includes an indicator light and a button; the housing is provided with a first through hole and a second through hole, the indicator light is led out of the housing through the first through hole, and the button is led out of the upper surface of the housing through the second through hole.

[0041] In one embodiment, the indicator light is connected to a first data interface of the pulse generating circuit, and the button is connected to a second data interface of the pulse generating circuit; wherein, the pulse generating circuit is used to control the indicator light to illuminate when a fault signal fed back by the device under test is received; the pulse generating circuit is also used to control the indicator light to turn off when a reset signal is received; the reset signal is generated when the button is pressed and sent to the pulse generating circuit.

[0042] In view of the shortcomings of existing pulse testing equipment, this application proposes a specific implementation of a touch screen pulse generator device, such as... Figure 2 , Figure 3 and Figure 4 As shown, Figure 2 This is a schematic diagram showing the connection relationship of the touch screen pulse generator device; Figure 3 This is a schematic diagram illustrating the installation principle of a touchscreen pulse generator device. Figure 4 This is a schematic diagram of the interface functions of a touch screen pulse generator device.

[0043] In one embodiment of this application, a touch screen pulse generator device is provided, including a dual-pulse triggering part, a power supply part, a display part, a pulse generating circuit, a first optical fiber transmitting module and a second optical fiber transmitting module. The pulse generating circuit is divided into a detection module and a communication configuration module.

[0044] The dual-pulse triggering section consists of an FPGA chip and multiple optical fiber interfaces connected to the FPGA chip, as well as multiple electrical signal interfaces. The FPGA generates pulse signals, which can be generated by an electrical signal pulse through a push-pull circuit or by an optical signal pulse through an optical fiber receiving module.

[0045] The power supply section uses a 12V lithium battery for power, and can also be powered by an external 12V power supply, which also charges the lithium battery. A switching power supply is used, partly to convert the power required by the device, and partly for adjustable power voltage, allowing for adjustment of the pulse voltage level.

[0046] The display section includes a display screen and indicator lights. The display screen is a touch-screen serial port screen, which allows measurement parameters to be set via the touch screen and buttons, improving the portability of the device.

[0047] The pulse generation circuit uses a main control chip for data processing. It receives data from the touch screen and buttons, adjusts parameters, communicates with the FPGA via a bus, and issues measurement commands. The FPGA generates a dual-pulse signal, which is connected to the device under test via a light receiver. The measured data can be transmitted to the user terminal via a wireless transmission module.

[0048] The display interface of the pulse generating circuit is connected to the touch screen. The device detection module completes information communication with the Universal Serial Bus (USB) through the programming interface. The communication configuration module is used to set the data channel and baud rate of the bus communication. The first optical fiber interface of the pulse generating circuit is connected to the first optical fiber transmitting module, and the second optical fiber interface of the pulse generating circuit is connected to the second optical fiber transmitting module, so as to output pulse test signals to the device under test through the first optical fiber transmitting module or the second optical fiber transmitting module.

[0049] In this embodiment, the pulse generation circuit includes a main control chip and a field-programmable gate array (FPGA). The main control chip 8's display interface is connected to a touchscreen, the FPGA-9's network interface 6 is connected to a network module, the main control chip 8's first data transmission terminal is connected to the FPGA-9's second data transmission terminal, the FPGA-9's first fiber optic interface is connected to a first fiber optic transmission module, and the FPGA-9's second fiber optic interface is connected to a second fiber optic transmission module.

[0050] In this embodiment, the pulse generation circuit generates pulse signals and outputs them through either the first or second fiber optic interface. Specifically, after the touchscreen receives a pulse signal selection command, it sends it to the main control chip, which then generates a corresponding pulse signal trigger signal and sends it to the field-programmable gate array (FPGA-9). The FPGA then outputs the corresponding pulse signal to the connected device under test based on the received signal. In this embodiment, the first and second fiber optic interfaces can be different output channels of the FPGA.

[0051] In this embodiment, the main control chip can be an STM32F407ZGT6TR chip. The main control chip communicates with the FPGA using the IIC protocol.

[0052] This study uses an FPGA chip to generate pulse test signals. The FPGA chip can expand to multiple output channels and simultaneously connect to multiple fiber optic interfaces and electrical signal interfaces. This enables synchronous testing of multiple power devices in power electronic equipment such as converters during dual-pulse testing, significantly improving the testing efficiency of power devices. Furthermore, the FPGA chip's fast response speed further enhances the testing performance of power devices.

[0053] In this embodiment, the touchscreen can be a touch-screen serial port screen, and is connected to the display interface of the main control chip in the pulse generation circuit via USB-RS232-WE-5000-BT_0.0 communication. When the user touches the graphic button displayed on the touchscreen, the touchscreen's haptic feedback system can send a drive signal to the pulse generation circuit connected to the touchscreen according to a pre-programmed signal.

[0054] The touchscreen pulse generator device also includes a housing. An accommodating space is formed within the housing, and the touchscreen, pulse generation circuit, first fiber optic transceiver module, and second fiber optic transceiver module are placed within this accommodating space, forming a perforated window through which the touchscreen is projected onto the housing.

[0055] In this embodiment, the outer shell is made of alloy material.

[0056] The touchscreen pulse generator device also includes a printed circuit board. The printed circuit board is placed within a housing space, and the pulse generation circuit, the first optical fiber transmission module, and the second optical fiber transmission module are all arranged on the printed circuit board.

[0057] In this embodiment, the pulse generation circuit, the first optical fiber transmission module, and the second optical fiber transmission module are all integrated on a single printed circuit board, which reduces the size of the pulse testing equipment and improves the reliability of the equipment.

[0058] The touchscreen pulse generator device also includes a network module. The network interface of the pulse generation circuit of the network module is connected to the network module to connect to external devices.

[0059] In this embodiment, the network module can use a network interface to connect to external devices (such as oscilloscopes) to collect data.

[0060] The touchscreen pulse generator device also includes an LCD indicator light and buttons. A first through-hole and a second through-hole are formed. The indicator light is led out from the top cover through the first through-hole, and the buttons are led out from the top cover through the second through-hole. The indicator light is connected to the first data interface of the pulse generation circuit, and the buttons are connected to the second data interface of the pulse generation circuit. When the pulse generation circuit receives a fault signal from the device under test, it controls the indicator light to illuminate. When the button is pressed, it generates a reset signal and sends the reset signal to the pulse generation circuit. Based on the received reset signal, the pulse generation circuit controls the indicator light to turn off.

[0061] Figure 5 This is a schematic diagram of the user interface of the touchscreen pulse generator device. The first and second fiber optic receiving modules can be connected to the output of the driver board of the device under test (DUT) to acquire fault signals (di / dt, Usat1, Usat2, Usat3, Usat4, undervoltage, narrow pulse width, etc.) fed back from the driver board and sent to the FPGA. The FPGA then forwards these signals to the main control chip. Upon receiving the fault signal, the main control chip can control the indicator light to illuminate, alerting the user that a fault has occurred in the DUT during testing. The user can also reset the indicator light using a button to turn it off.

[0062] In this embodiment, see Figure 3 As shown, the network module, indicator light 11, and button 10 are also arranged on the printed circuit board 4.

[0063] The touchscreen pulse generator device also includes a lithium battery 5. The lithium battery is placed between the printed circuit board and the inner surface of the housing 2 to power the pulse generation circuit.

[0064] In this embodiment, a power socket for use with a lithium battery is also arranged on the printed circuit board. The lithium battery can be charged through the power socket. Alternatively, it can be directly powered by an external power source connected to the power socket. In this embodiment, the lithium battery is 12V. Part of the power provided by the lithium battery or the external power source is the power required by the device, and the other part can be converted into an adjustable power supply voltage. The pulse voltage level is controlled by adjusting the push-pull circuit voltage.

[0065] In this embodiment, a power switch is also arranged on the printed circuit board to control the start and stop of the pulse testing equipment.

[0066] Furthermore, the pulse generation circuit also includes a LoRa module 14, a Wi-Fi module 13, and a Bluetooth module 12. The main control chip communicates with the LoRa, Wi-Fi, and Bluetooth modules via a serial port to transmit received or acquired data to the client wirelessly. In this embodiment, the LoRa, Wi-Fi, and Bluetooth modules are also mounted on a printed circuit board. The LoRa, Wi-Fi, and Bluetooth modules have different communication distances to accommodate data transmission between clients at different distances.

[0067] In the first embodiment of this application, the transmission wavelengths of the first optical fiber transmitting module and the second optical fiber transmitting module are different. The transmission distances and transmission speeds of the first optical fiber transmitting module and the second optical fiber transmitting module are also different. That is, multiple optical fiber interfaces and electrical signal interfaces can be configured here.

[0068] Figure 6 The present invention provides a circuit diagram of a first and a second optical fiber transmitting module in one embodiment of the present application. The first optical fiber transceiver assembly includes a plurality of first optical fiber transmitting modules and a plurality of first optical fiber receiving modules. The plurality of first optical fiber transmitting modules and the plurality of first optical fiber receiving modules are arranged side by side alternately in a first area above the printed circuit board. Each first optical fiber transmitting module and each first optical fiber receiving module is led out from the top of the housing.

[0069] The second fiber optic transceiver assembly includes multiple second fiber optic transmitting modules and multiple second fiber optic receiving modules. These modules are arranged alternately side-by-side in a second region above the printed circuit board. Each second fiber optic receiving module and each second fiber optic transmitting module extends from the top of the housing. The third fiber optic interface of the pulse generating circuit is connected to the first fiber optic receiving module, and the fourth fiber optic interface of the pulse generating circuit is connected to the second fiber optic receiving module.

[0070] In this embodiment, both the first and second fiber optic transceivers include a fiber optic transmitting module for transmitting and a fiber optic receiving module for receiving. The fiber optic transmitting module and the fiber optic receiving module work together. Each working fiber optic transmitting module and fiber optic receiving module has the same transmission wavelength.

[0071] In this embodiment, the first interface circuit is used to connect the first transceiver 15 and the first optical fiber interface. In this embodiment, the model of the first transceiver is HFBR-1414TZ-TX-1637.

[0072] In this embodiment, the second interface circuit is used for connecting the second transceiver and the second fiber optic interface. In this embodiment, the second transceiver 16 is model PHILIPPINES-1521Z.

[0073] In one specific embodiment, a touchscreen pulse generator device is provided that does not require connection to a host computer, facilitating operation and improving the portability of the device. Users can customize test functions, including but not limited to: normal triggering, dual-pulse testing, multi-pulse testing, periodic pulse, full-bridge phase shifting, SPWM, SVPWM, etc.

[0074] It should be noted that similar reference numerals and letters in the accompanying drawings indicate similar items. Therefore, once an item is defined in one accompanying drawing, it does not need to be further defined and explained in subsequent accompanying drawings. In addition, the terms "first," "second," "third," etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A touchscreen pulse generator, characterized in that, include: Touch screen, pulse generation circuit, first optical fiber transmission module and second optical fiber transmission module; The pulse generating circuit is connected to the touch screen via a display interface; the first optical fiber interface of the pulse generating circuit is connected to the first optical fiber transmitting module, and the second optical fiber interface of the pulse generating circuit is connected to the second optical fiber transmitting module, so as to output a pulse test signal to the device under test through the first optical fiber transmitting module or the second optical fiber transmitting module. The pulse generation circuit includes a detection module, a communication configuration module, a main control chip, and a field-programmable gate array; the detection module communicates with the Universal Serial Bus (USB) via a programming interface; the communication configuration module is used to set the data channel and baud rate for bus communication. The main control chip is connected to the touch screen via a display interface; the field-programmable gate array (FPGA) is connected to the network module via a network interface; the first data transmission terminal of the main control chip is connected to the second data transmission terminal of the FPGA; the first optical fiber interface of the FPGA is connected to the first optical fiber transmission module, and the second optical fiber interface of the FPGA is connected to the second optical fiber transmission module. The pulse generation circuit also includes a LoRa module, a WIFI module, and a Bluetooth module. The main control chip communicates with the LoRa module, the WIFI module, and the Bluetooth module via a serial port connection to send the received or collected data to the client wirelessly. The pulse generation circuit supports user-defined test functions, including at least one of normal triggering, dual-pulse test, multi-pulse test, periodic pulse, full-bridge phase shift, SPWM, and SVPWM.

2. The touchscreen pulse generator according to claim 1, characterized in that, Also includes: Network module; The pulse generating circuit is connected to the network module via a network interface, so that it can be connected to external devices through the network module.

3. A portable pulse testing device, characterized in that, The device includes a housing and a touchscreen pulse generator as described in any one of claims 1 to 2. The housing forms a receiving space in which the touchscreen, the pulse generating circuit, the first optical fiber transmitting module, and the second optical fiber transmitting module are all placed. The upper surface of the housing is provided with a perforated window through which the touchscreen is presented on the housing. A printed circuit board is provided within the accommodating space, and the pulse generating circuit, the first optical fiber transmitting module, the second optical fiber transmitting module, the LoRa module, the WIFI module, and the Bluetooth module are all disposed on the printed circuit board; The upper surface of the housing is also provided with a first through hole and a second through hole for leading out indicator lights and buttons. The indicator lights and buttons are connected to the pulse generating circuit and are used to indicate fault status and reset operation.

4. The portable pulse testing device according to claim 3, characterized in that, The first optical fiber transmitting module and the second optical fiber transmitting module have different transmission wavelengths; it also includes a plurality of first optical fiber receiving modules, which are arranged alternately side by side in a first area above the printed circuit board; each of the first optical fiber transmitting modules and each of the first optical fiber receiving modules extends from the top of the housing.

5. The portable pulse testing device according to claim 4, characterized in that, It also includes multiple second optical fiber receiving modules, and multiple second optical fiber transmitting modules and multiple second optical fiber receiving modules are arranged alternately side by side in a second area above the printed circuit board; each second optical fiber receiving module and each second optical fiber transmitting module extends from the top of the housing.

6. The portable pulse testing device according to claim 3, characterized in that, The indicator light is connected to the first data interface of the pulse generating circuit, and the button is connected to the second data interface of the pulse generating circuit. The pulse generating circuit is used to control the indicator light to illuminate when it receives a fault signal fed back by the device under test. The pulse generating circuit is also used to control the indicator light to turn off when it receives a reset signal. The reset signal is generated when the button is pressed and sent to the pulse generating circuit.

Images