Voltage adaptive isolation communication device and method, electronic equipment and storage medium
By using a voltage adaptive isolation communication device in the communication interface and using a level adaptive module for voltage conversion, the problem that the existing communication interface cannot be adapted in the full voltage domain is solved, higher adaptability and universality are achieved, and the communication signals are physically isolated.
Patent Information
- Application Number
- CN202411614283.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-02-25
AI Technical Summary
The existing communication interface cannot complete communication adaptation in the full voltage domain, which limits the adaptability and universality of the communication circuit.
The voltage adaptive isolation communication device is adopted, which includes an isolation module, a communication interface module and a level adaptive module. The level adaptive module converts the communication signals between the processor and the communication interface module to enable the communication interface module to complete communication adaptation in the full voltage domain.
The adaptability and versatility of the communication interface in the full voltage domain are realized, the adaptability of the communication circuit is improved, and the physical isolation problem of communication signals is solved through the cooperation of the voltage adaptive module and the isolation module.
Smart Images
Figure CN119513014A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a voltage adaptive isolation communication device, method, electronic equipment and storage medium, belonging to the technical field of communication. Background Art
[0002] In the field of industrial control communications, industrial control communications need to send data collected from downstream devices to the background, and the background will process the data and then feed it back to the downstream device. Data communication is required in the middle. Data communication has a variety of data interfaces. Common data interfaces include RS485, RS232, RS422, etc.
[0003] In actual application scenarios, for different applications, the interfaces of downstream devices are different. RS485 may be required, while RS232 may be required. If all interfaces are matched, the overall system will be very complicated and there will be many interfaces. Unused interfaces will inevitably lead to a waste of interface resources. In addition, when using, communication equipment may be accidentally damaged due to harsh environments such as ground loop voltage, surge, induced lightning, static electricity and hot plugging. Especially in engineering applications, failures in communication applications will seriously affect the progress and quality of the project.
[0004] At present, the communication voltage range of processor chips is relatively wide, including 1.2V, 1.5V, 3.3V, 5V, etc., while conventional communication interface RS485, RS232, RS422 and other chips are usually only adapted to 1-2 of these communication voltages and cannot complete communication adaptation within the entire voltage domain. Therefore, they are greatly restricted during use. Summary of the invention
[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a voltage adaptive isolation communication device, method, electronic device and storage medium, which solves the problem that existing conventional communication interfaces cannot complete communication adaptation within the full voltage domain.
[0006] To achieve the above object, the present invention is implemented by adopting the following technical solutions: In a first aspect, the present invention provides a voltage-adaptive isolation communication device, comprising: an isolation module, a communication interface module and a level adaptation module; the level adaptation module is connected to a processor by bidirectional signals, and is connected to the communication interface module by bidirectional signals through the isolation module; the level adaptation module is used to level-convert the communication signal between the processor and the communication interface module, so that the communication interface module completes communication adaptation within the full voltage domain.
[0007] Furthermore, the level adaptation module includes: a control port; the control port is used to input a control voltage, and the control voltage is used to control the output voltage of the level adaptation module after level conversion.
[0008] Furthermore, the communication interface module is an RS422 interface, an RS485 interface, an RS232 interface or a CAN bus interface.
[0009] Furthermore, the device also includes: an isolated input and output module, which is used to realize the input and output of I / O signals; the isolated input and output module is connected to the level adaptation module through a bidirectional signal of the isolation module; the level adaptation module is also used to convert the level of the I / O signal between the processor and the isolated input and output module.
[0010] Furthermore, the device also includes: an isolated power supply input and an isolated power supply output; the isolated power supply input is used to input the primary side coupling power supply of the isolation module and power the level adaptation module; the isolated power supply output is used to output the secondary side coupling power supply of the isolation module and power the communication interface module and the isolated input and output module.
[0011] Furthermore, the device is integrated using a ceramic SIP packaging process, all chips are integrated using bare chips, the chip and substrate are connected using an epoxy bonding process, and the chip pad and substrate are connected using a gold wire bonding process.
[0012] In a second aspect, the present invention provides a voltage-adaptive isolated communication method, which is implemented by a device as described in any one of the first aspects, and the method includes: in response to the processor sending a communication signal, controlling the level adaptation module to convert the communication voltage output by the processor into a voltage signal that is compatible with the current communication interface module, and outputting the voltage signal to the communication interface module via the isolation module; in response to the processor receiving a communication signal, controlling the level adaptation module to convert the communication voltage output by the communication interface module via the isolation module into a voltage signal that is compatible with the processor communication voltage, and outputting the voltage signal to the processor.
[0013] Furthermore, the method also includes: in response to the processor sending an I / O signal, controlling the level adaptive module to convert the I / O signal voltage output by the processor into a voltage signal compatible with the current isolation input-output module, and outputting the voltage signal to the isolation input-output module via the isolation module; in response to the processor receiving an I / O signal, controlling the level adaptive module to convert the I / O signal voltage output by the isolation input-output module via the isolation module into a voltage signal compatible with the processor, and outputting the voltage signal to the processor.
[0014] In a third aspect, the present invention provides an electronic device, comprising: a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the voltage-adaptive isolation communication method as described in the second aspect is implemented.
[0015] In a fourth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the voltage-adaptive isolation communication method as described in the second aspect is implemented.
[0016] Compared with the prior art, the present invention has the following beneficial effects: The voltage-adaptive isolation communication device provided by the present invention realizes communication adaptation in the entire voltage domain for interfaces with only 1-2 communication voltage adaptations through a voltage-adaptive module, thereby improving the adaptability and versatility of the communication circuit. In addition, the device solves the problem of physical isolation of communication signals through the cooperation of the voltage-adaptive module and the isolation module. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the structure of the voltage adaptive isolation communication device in Embodiment 1 and Embodiment 2 of the present invention; Figure 2 This is a circuit diagram of a specific implementation scheme in Example 3 of the present invention. DETAILED DESCRIPTION
[0018] The terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above-mentioned drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices. The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Example 1
[0019] The present invention provides a voltage adaptive isolation communication device, such as Figure 1 As shown, the device includes: an isolation module, a communication interface module and a level adaptation module.
[0020] The isolation module includes: a signal isolation module, and the signal isolation module is used to realize isolated communication between the primary side circuit and the secondary side circuit.
[0021] The level adaptation module is connected to the processor in a bidirectional signal manner, and is connected to the communication interface module in a bidirectional signal manner through the signal isolation module; Figure 1 As shown, the processor transmits the interface output signal to the communication interface module through the level adaptation module, and the communication interface module can also transmit the interface input signal to the processor through the level adaptation module.
[0022] The level adaptation module can automatically identify a wide voltage range of 1.0V to 5.5V, and then perform level conversion on the communication signal between the processor and the communication interface module, so that the communication interface module completes communication adaptation in the full voltage domain.
[0023] In a specific embodiment, the level adaptation module is provided with a control port for inputting a control voltage, wherein the control voltage is the amplitude of the output voltage after level conversion of the control level adaptation module. The input control voltage is set according to the current communication interface model so that the output voltage after level conversion of the level adaptation module is adapted to the current communication interface.
[0024] In a specific embodiment, the communication interface module is an RS422 interface, an RS485 interface, an RS232 interface or a CAN bus interface. Example 2
[0025] Based on Example 1, this embodiment provides a voltage adaptive isolation communication device with power isolation function and I / O signal isolation function.
[0026] On the basis of Example 1, the voltage adaptive isolation communication device further includes: an isolation input and output module, an isolation power input and an isolation power output. The isolation input and output module is used to realize the input and output of I / O signals; the isolation power input is used to input the primary side coupling power of the isolation module and supply power to the level adaptive module; the isolation power output is used to output the secondary side coupling power of the isolation module and supply power to the communication interface module and the isolation input and output module.
[0027] The isolation module further includes: an isolated power supply, and the isolated power supply is used to achieve isolation between the primary-side coupled power supply and the secondary-side coupled power supply.
[0028] The isolated input-output module is bidirectionally connected to the level adaptation module through the signal isolation module; the level adaptation module is also used to perform level conversion on the I / O signal between the processor and the isolated input-output module.
[0029] like Figure 1 As shown, the processor converts the primary I / O signal through the level adaptation module, isolates it through the signal isolation module, and then outputs the secondary I / O signal through the isolation input and output module. At the same time, the isolation input and output module can also convert the secondary I / O signal through the level adaptation module and transmit it to the processor. Example 3
[0030] This embodiment provides a specific implementation of the present aspect in an isolation circuit.
[0031] like Figure 2 As shown, the isolation module includes: an isolation power supply N7 and signal isolation modules N2 and N3.
[0032] After the external power supply VDD1 is converted by the isolated power supply N7, the output isolated power supply voltage is VDD2. VDD1 is used to power the primary side circuit, and VDD2 is used to power the secondary side circuit.
[0033] The input (or output) level signal corresponding to the pins 8 to 13 has an adaptive function with the VL voltage of the pins 6 and 7, that is, the input (or output) high level of the pins 8 to 13 is the same as the VL voltage, where VL is the external input control voltage. After the N1 level adaptation, the signals RXD and TXD are isolated by the signal isolation module and output to the communication interface module N6, and output through the bus ports 22 to 25.
[0034] The two input signals DIN1 and DIN2 and the two output signals DOUT3 and DOUT4 pass through the level adaptation module N1, and then through the isolation input and output module to achieve 7000VAC high-voltage isolation of the signals, and are output through ports 26 to 29. Example 4
[0035] Based on Embodiments 1 to 3, this embodiment provides a packaging process for a voltage-adaptive isolation communication device.
[0036] In this embodiment, the voltage adaptive isolation communication device is integrated using a ceramic SIP packaging process, the packaging substrate uses a multi-layer ceramic substrate, all chips are integrated using bare chips, the chip and the substrate are connected using an epoxy bonding process, the chip pad and the substrate are connected using a gold wire bonding process, and a metal frame combined with a parallel seam welding process is used on the top of the substrate to achieve airtight packaging of the product. Example 5
[0037] In this embodiment, a voltage-adaptive isolation communication method is provided, and the method is implemented by the device described in Example 1 or Implementation 2, and the method includes: in response to the processor sending a communication signal, controlling the level adaptation module to convert the communication voltage output by the processor into a voltage signal adapted to the current communication interface module, and outputting the voltage signal to the communication interface module via the isolation module; in response to the processor receiving a communication signal, controlling the level adaptation module to convert the communication voltage output by the communication interface module via the isolation module into a voltage signal adapted to the processor communication voltage, and outputting the voltage signal to the processor.
[0038] In a specific embodiment, the method also includes: in response to the processor sending an I / O signal, controlling the level adaptive module to convert the I / O signal voltage output by the processor into a voltage signal compatible with the current isolation input-output module, and outputting the voltage signal to the isolation input-output module via the isolation module; in response to the processor receiving an I / O signal, controlling the level adaptive module to convert the I / O signal voltage output by the isolation input-output module via the isolation module into a voltage signal compatible with the processor, and outputting the voltage signal to the processor. Example 6
[0039] This embodiment provides an electronic device, including: a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the voltage-adaptive isolation communication method as described in Embodiment 5 is implemented. Example 7
[0040] This embodiment provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the voltage-adaptive isolation communication method as described in Embodiment 5 is implemented.
[0041] The storage medium may include, for example, a storage component of a tablet computer, a hard disk of a computer, a read-only memory (ROM), an erasable programmable read-only memory (EPROM), a portable compact disk read-only memory (CD-ROM), a USB memory, or any combination of the above storage media. The computer storage medium may be any combination of one or more computer storage media.
[0042] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A voltage adaptive isolation communication device, characterized in that: include: Isolation module, communication interface module and level adaptation module; The level adaptation module is connected to the processor by bidirectional signals, and is connected to the communication interface module by bidirectional signals through the isolation module; The level adaptation module is used to perform level conversion on the communication signal between the processor and the communication interface module, so that the communication interface module can complete communication adaptation in the full voltage domain.
2. The voltage adaptive isolation communication device according to claim 1, characterized in that: The level adaptive module comprises: a control port; the control port is used to input a control voltage, and the control voltage is used to control the output voltage of the level adaptive module after level conversion.
3. The voltage adaptive isolation communication device according to claim 1, characterized in that: The communication interface module is an RS422 interface, an RS485 interface, an RS232 interface or a CAN bus interface.
4. The voltage adaptive isolation communication device according to claim 1, characterized in that: Also includes: An isolated input / output module, which is used to implement input and output of I / O signals; The isolation input and output module is connected to the level adaptation module via a bidirectional signal connection of the isolation module; The level adaptation module is also used to perform level conversion on the I / O signal between the processor and the isolation input and output module.
5. The voltage adaptive isolation communication device according to claim 4, characterized in that: Also includes: Isolated power input and isolated power output; The isolated power input is used to input the primary side coupling power of the isolation module and to supply power to the level adaptive module; The isolated power supply output is used to output the secondary side coupling power of the isolation module and to supply power to the communication interface module and the isolated input and output module.
6. The voltage adaptive isolation communication device according to any one of claims 1 to 5, characterized in that: The device is integrated using ceramic SIP packaging technology, all chips are integrated using bare chips, the chip and substrate are connected using epoxy bonding technology, and the chip pad and substrate are connected using gold wire bonding technology.
7. A voltage adaptive isolation communication method, characterized in that: The method is implemented by the device according to any one of claims 1 to 6, and the method comprises: In response to the processor sending a communication signal, the control level adaptive module converts the communication voltage output by the processor into a voltage signal adapted to the current communication interface module, and outputs the voltage signal to the communication interface module via the isolation module; In response to the processor receiving the communication signal, the control level adaptation module converts the communication voltage output by the communication interface module via the isolation module into a voltage signal adapted to the communication voltage of the processor, and outputs the voltage signal to the processor.
8. The voltage adaptive isolation communication method according to claim 7, characterized in that: Also includes: In response to the processor sending an I / O signal, the control level adaptive module converts the I / O signal voltage output by the processor into a voltage signal adapted to the current isolated input-output module, and outputs the voltage signal to the isolated input-output module via the isolation module; In response to the processor receiving the I / O signal, the control level adaptive module converts the I / O signal voltage output by the isolation input and output module through the isolation module into a voltage signal adapted to the processor, and outputs the voltage signal to the processor.
9. An electronic device, characterized in that: include: A processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the voltage-adaptive isolation communication method according to any one of claims 7 to 8 is implemented.
10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the voltage-adaptive isolation communication method according to any one of claims 7 to 8 is implemented.