CN117741415A - Pin detecting system providing line switching through circuit switching card and method thereof - Google Patents
Pin detecting system providing line switching through circuit switching card and method thereof Download PDFInfo
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- CN117741415A CN117741415A CN202211107943.5A CN202211107943A CN117741415A CN 117741415 A CN117741415 A CN 117741415A CN 202211107943 A CN202211107943 A CN 202211107943A CN 117741415 A CN117741415 A CN 117741415A
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- 238000001514 detection method Methods 0.000 claims abstract description 242
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Abstract
A pin detection system providing line switching through a circuit switching card and a method thereof, wherein the circuit switching card enables a multiplexer in the circuit switching card through a switching signal, and the enabled multiplexer detection signal input pin and the enabled multiplexer detection signal output pin are mutually conducted according to the switching signal, so as to realize line switching to provide detection signals to pins to be detected, thereby realizing the technical effect of line switching pin detection of enabling the multiplexer and conducting the multiplexer detection signal input pin and the multiplexer detection signal output pin according to the switching signal.
Description
Technical Field
A pin detection system and a method thereof, in particular to a line switching pin detection system and a method thereof for realizing the enabling of a multiplexer and the conduction of a detection signal input pin and a detection signal output pin of the multiplexer according to a switching signal.
Background
The pin positions of the electronic elements and the connecting interfaces on the circuit board are detected, the production yield of the circuit board can be effectively improved, and the electronic elements connected by the pin positions of the same connecting interfaces used by different circuit boards can be different, so that the same connecting interfaces cannot be used by the same switching circuit boards for different circuit boards, and the detection purpose can be achieved.
In addition, since the connection interfaces of the switching circuit boards are the same, an incorrect switching circuit board may be used in the detection process, which may also cause erroneous detection results when detecting the electronic components on the circuit board and the pins of the connection interfaces.
In summary, it can be seen that in the prior art, the adapting circuit board needs to be formulated for testing for different circuit boards with the same connection interface, which results in an increase in testing cost and a misuse of the adapting circuit board, so that an improved technical means is needed to solve the problem.
Disclosure of Invention
In view of the problems of the prior art that the same connection interface is required to be made for different circuit boards to detect, resulting in increased detection cost and easy misuse of the switching circuit board, the invention further discloses a pin detection system and a method thereof for providing line switching through a circuit switching card, wherein:
the invention discloses a pin detection system for providing line switching through a circuit conversion card, which comprises: the circuit board comprises a detection device, a circuit conversion card and a circuit board to be tested.
The detection device is provided with a connection interface, the detection device provides a switching signal through a switching signal pin of the connection interface, and the detection device selects at least one detection signal pin in the connection interface according to the switching signal to provide a detection signal.
The circuit conversion card is provided with a conversion card connection interface, at least one multiplexer and a conversion card slot, wherein the switching signal slot pin of the conversion card slot is electrically connected with the switching signal pin and the switching signal input pin of the at least one multiplexer, the at least one detection signal input slot pin in the conversion card slot is electrically connected with the at least one detection signal pin in the connection interface and the at least one detection signal input pin in the at least one multiplexer respectively, one of the at least one multiplexer enables the at least one detection signal input pin in the enabled multiplexer according to the switching signal and the at least one detection signal output pin in the enabled multiplexer according to the switching signal, the at least one detection signal output pin in the at least one multiplexer is electrically connected with the at least one detection signal interface pin in the conversion card connection interface, and the detection signal passes through the at least one detection signal input slot pin in the conversion card slot, the at least one detection signal input pin in the enabled multiplexer and the at least one detection signal output pin in the enabled multiplexer respectively.
The circuit board to be tested is provided with at least one slot to be tested, at least one detection signal slot pin in the slot to be tested is electrically connected with at least one detection signal interface pin in the conversion card connection interface, and at least one detection signal slot pin in the slot to be tested is converted into at least one detection signal interface pin in the card connection interface to obtain detection signals so as to detect the pins.
The invention discloses a pin position detection method for providing line switching through a circuit switching card, which comprises the following steps:
firstly, the detection device is provided with a connection interface; then, the detection device provides a switching signal through a switching signal pin of the connection interface; then, the detection device selects at least one detection signal pin in the connection interface according to the switching signal to provide a detection signal; next, the circuit conversion card is provided with a conversion card connection interface, at least one multiplexer and a conversion card slot; then, the switching signal slot pin of the switching card slot is electrically connected with the switching signal pin and the switching signal input pin of at least one multiplexer; then, at least one detection signal input slot pin in the conversion card slot is electrically connected with at least one detection signal pin in the connection interface and at least one detection signal input pin in the at least one multiplexer respectively; then, one of the at least one multiplexer is enabled according to the switching signal and the at least one detection signal input pin of the enabled multiplexer and the at least one detection signal output pin of the enabled multiplexer are mutually conducted according to the switching signal; then, at least one detection signal output pin of at least one multiplexer is electrically connected with at least one detection signal interface pin of the conversion card connection interface; then, the detection signals respectively pass through at least one detection signal input slot pin in the conversion card slot, at least one detection signal input pin in the enabled multiplexer, at least one detection signal output pin in the enabled multiplexer and at least one detection signal interface pin in the conversion card connection interface; next, the circuit board to be tested is provided with at least one slot to be tested; then, at least one detection signal slot pin in the slot to be detected is electrically connected with at least one detection signal interface pin in the conversion card connection interface; finally, at least one detection signal slot pin in the slot to be detected changes at least one detection signal interface pin in the conversion card connection interface to obtain a detection signal so as to detect the pin.
The system and method disclosed in the present invention are different from the prior art in that the circuit switch card enables the multiplexer in the circuit switch card by switching signals, and the enabled multiplexer detection signal input pin and detection signal output pin are mutually conducted according to the switching signals, thereby realizing line switching to provide detection signals to the pins to be detected.
By the technical means, the invention can achieve the technical effects of realizing the enabling of the multiplexer and the line switching pin detection of the conduction of the detection signal input pin and the detection signal output pin of the multiplexer according to the switching signal.
Drawings
FIG. 1 is a block diagram of a pin detection system providing circuit switching through a circuit switching card according to the present invention.
Fig. 2 is a schematic diagram of a pin of a connection interface for providing pin detection of line switching through a circuit switching card according to the present invention.
Fig. 3 is a schematic diagram showing a switch card connection interface, a multiplexer and a switch card slot pin connection of the circuit switch card for providing the pin detection of the circuit switch by the circuit switch card according to the present invention.
Fig. 4 is a schematic diagram of a pin of a socket to be tested for providing pin detection of circuit switching through a circuit switching card according to the present invention.
Fig. 5A and 5B are schematic diagrams showing the conduction of pins of the multiplexer for providing the pin detection of the line switching through the circuit switching card according to the present invention.
Fig. 6A and fig. 6B are schematic diagrams of a circuit board to be tested according to the present invention, which provides pin detection of circuit switching through a circuit switching card.
Fig. 7A and 7B are flowcharts illustrating a method for providing a pin detection method for line switching by a circuit switching card according to the present invention.
Reference numerals illustrate:
10: detection device
11: connection interface
111: switching signal pin
112: first detection signal pin
113: second detection signal pin
20: circuit conversion card
21: conversion card connection interface
22: multiplexer for multiplexing
221: first multiplexer
2211: switching signal input pin
2212: first detection signal input pin
2214: third detection signal input pin
2216: first detection signal output pin
2217: second detection signal output pin
2218: third detection signal output pin
2219: fourth detection signal output pin
222: second multiplexer
2221: switching signal input pin
2222: first detection signal input pin
2224: third detection signal input pin
2227: second detection signal output pin
2229: fourth detection signal output pin
23: conversion card slot
231: switching signal slot pin
232: first detection signal input slot pin
233: second detection signal input slot pin
30: circuit board to be tested
31: to-be-detected slot
311: first slot to be detected
312: second slot to be detected
3112: second detection signal slot pin
3114: fourth detection signal slot pin
33: controllable chip
Step 101: the detection device is provided with a connection interface
Step 102: the detection device provides a switching signal through a switching signal pin of the connection interface
Step 103: the detection device selects at least one detection signal pin in the connection interface according to the switching signal to provide a detection signal
Step 104: the circuit conversion card has a conversion card connection interface, at least one multiplexer and a conversion card slot
Step 105: the switching signal slot pin of the switching card slot is electrically connected with the switching signal pin and the switching signal input pin of at least one multiplexer
Step 106: at least one detection signal input slot pin in the conversion card slot is respectively electrically connected with at least one detection signal pin in the connection interface and at least one detection signal input pin in the multiplexer
Step 107: at least one of the multiplexers is enabled according to the switching signal and the at least one detection signal input pin of the enabled multiplexer is conducted with the at least one detection signal output pin of the enabled multiplexer according to the switching signal
Step 108: at least one detection signal output pin of the enabled multiplexer is electrically connected with at least one detection signal interface pin of the conversion card connection interface
Step 109: the detection signals respectively pass through at least one detection signal input slot pin in the conversion card slot, at least one detection signal input pin in the enabled multiplexer, at least one detection signal output pin in the enabled multiplexer and at least one detection signal interface pin in the conversion card connection interface
Step 110: the circuit board to be tested is provided with at least one slot to be tested
Step 111: at least one detection signal slot pin in the slot to be detected is electrically connected with at least one detection signal interface pin in the conversion card connection interface
Step 112: at least one detection signal slot pin in the slot to be detected is converted into at least one detection signal interface pin in the card connecting interface to obtain a detection signal so as to detect the pin
Detailed Description
The following detailed description of embodiments of the present invention will be given with reference to the accompanying drawings and examples, by which the implementation process of how the present invention can be applied to solve the technical problems and achieve the technical effects can be fully understood and implemented.
The present invention is first described with reference to fig. 1, which is a block diagram of a pin detection system for providing circuit switching through a circuit switching card according to the present invention.
The invention discloses a pin detection system for providing line switching through a circuit conversion card, which comprises: the circuit board 30 to be tested, the detection device 10, the circuit conversion card 20.
The detecting device 10 has a connection interface 11, the circuit switch card 20 has a switch card connection interface 21, at least one multiplexer 22 and a switch card slot 23, the connection interface 11 and the switch card slot 23 form an electrical connection, the circuit board 30 to be detected has at least one slot 31 to be detected, and one of the at least one slot 31 to be detected forms an electrical connection with the switch card connection interface 21.
Referring to fig. 2, fig. 2 is a schematic diagram showing a pin position of a connection interface for providing pin position detection of line switching through a circuit switching card according to the present invention.
The detection device 10 provides a switching signal through the switching signal pin 111 of the connection interface 11, and the detection device 10 selects the first detection signal pin 112 and the second detection signal pin 113 in the connection interface 11 according to the switching signal to provide a detection signal.
Referring to fig. 3, fig. 3 is a schematic diagram showing a switch card connection interface, a multiplexer and a switch card slot pin connection of the circuit switch card for providing pin detection of line switching through the circuit switch card according to the present invention.
The switch signal slot pin 231 of the switch card slot 23 is electrically connected to the switch signal pin 111 (see fig. 2), and the switch signal input pin 2211 of the first multiplexer 221 is electrically connected to the switch signal input pin 2221 of the second multiplexer 222.
The first detection signal input slot pin 232 in the switch card slot 23 is electrically connected to the first detection signal pin 112 (shown in fig. 2) in the connection interface 11 (shown in fig. 2) and the first detection signal input pin 2212 of the first multiplexer 221, respectively, and is electrically connected to the first detection signal input pin 2222 of the second multiplexer 222.
The second detection signal input slot pin 233 in the switch card slot 23 is electrically connected to the second detection signal pin 113 (please refer to fig. 2) in the connection interface 11 and the third detection signal input pin 2214 of the first multiplexer 221, respectively, and is electrically connected to the third detection signal input pin 2224 of the second multiplexer 222.
In an embodiment, the first multiplexer 221 is enabled according to the switching signal and turns on the first detection signal input pin 2214 of the enabled first multiplexer 221 and the second detection signal output pin 2217 of the enabled first multiplexer 221 according to the switching signal; the first multiplexer 221 enables the third detection signal input pin 2214 of the enabled first multiplexer 221 and the fourth detection signal output pin 2219 of the enabled first multiplexer 221 according to the switching signal.
In the embodiment, the second detection signal output pin 2217 in the first multiplexer 221 is electrically connected to the second detection signal interface pin 212 in the switch card connection interface 21, and the fourth detection signal output pin 2219 in the first multiplexer 221 is electrically connected to the fourth detection signal interface pin 214 in the switch card connection interface 21; the second detection signal output pin 2227 of the second multiplexer 222 is electrically connected to the second detection signal interface pin 212 of the switch card connection interface 21, and the fourth detection signal output pin 2229 of the second multiplexer 222 is electrically connected to the fourth detection signal interface pin 214 of the switch card connection interface 21.
Referring to fig. 4, fig. 4 is a schematic diagram showing a pin position of a socket to be tested for providing pin position detection of line switching by a circuit switching card according to the present invention.
In the embodiment, the circuit board 30 to be tested has a first socket 311 to be tested and a second socket 312 to be tested, the second socket pins 3112 of the first socket 311 to be tested and the second socket pins 212 of the switch card connection interface 21 (refer to fig. 3) are electrically connected, the fourth socket pins 3114 of the first socket 311 to be tested and the fourth socket pins 214 of the switch card connection interface 21 (refer to fig. 3) are electrically connected, and it should be noted that the first socket 311 to be tested and the second socket 312 to be tested may be the same socket type, and the first socket 311 to be tested and the second socket 312 to be tested may be different socket types, so the switch card connection interface 21 is matched with the socket types of the first socket 311 to be tested or the second socket 312 to be tested which are electrically connected.
The detection device 10 provides detection signals through the first detection signal pin 112, the detection signals respectively pass through the first detection signal input slot pin 232 in the switch card slot 23, the first detection signal input pin 2212 in the enabled first multiplexer 221, the second detection signal output pin 2217 in the enabled first multiplexer 221 and the second detection signal interface pin 212 in the switch card connection interface 21, and the second detection signal slot pin 312 in the circuit board to be tested 30 obtains detection signals from the second detection signal interface pin 212 in the switch card connection interface 21 to detect the pins.
The detection device 10 provides detection signals through the second detection signal pins 113, the detection signals respectively pass through the second detection signal input slot pins 233 in the switch card slot 23, the third detection signal input pins 2214 in the enabled first multiplexer 221, the fourth detection signal output pins 2219 in the enabled first multiplexer 221 and the fourth detection signal interface pins 214 in the switch card connection interface 21, and the fourth detection signal slot pins 314 in the circuit board to be tested 30 obtain detection signals from the fourth detection signal interface pins 214 in the switch card connection interface 21 to detect the pins.
Referring to fig. 5A and 5B, fig. 5A and 5B are schematic diagrams showing the conduction of the pins of the multiplexer for providing the pin detection of the circuit switching through the circuit switching card according to the present invention.
In fig. 5A, the first multiplexer 221 is enabled according to the first switching signal and turns on the first detection signal input pin 2214 of the enabled first multiplexer 221 and the second detection signal output pin 2217 of the enabled first multiplexer 221 according to the first switching signal; the first multiplexer 221 is enabled according to the first switching signal and turns on the third detection signal input pin 2214 of the enabled first multiplexer 221 and the fourth detection signal output pin 2219 of the enabled first multiplexer 221 according to the first switching signal.
In fig. 5B, the first multiplexer 221 is enabled according to the second switching signal and turns on the first detection signal input pin 2214 of the enabled first multiplexer 221 and the first detection signal output pin 2216 of the enabled first multiplexer 221 according to the second switching signal; the first multiplexer 221 enables the third detection signal input pin 2214 of the enabled first multiplexer 221 and the third detection signal output pin 2218 of the enabled first multiplexer 221 according to the second switching signal, so as to achieve the purpose of switching lines to provide detection signals to the detection pins.
Fig. 6A and fig. 6B show schematic diagrams of a circuit board to be tested for providing pin detection of line switching through a circuit switching card according to the present invention.
In fig. 6A, the first to-be-detected slot 311 of the circuit board 30 to be tested and the second to-be-detected slot 312 of the circuit board 30 to be tested may be electrically connected by differential circuits, and the first to-be-detected slot 311 of the circuit board 30 to be tested and the second to-be-detected slot 312 of the circuit board 30 to be tested may be independent, which is only for illustration and not limitation of the application scope of the present invention.
In fig. 6B, the circuit board 30 to be tested further includes a controllable chip 33, the first socket 311 to be tested of the circuit board 30 to be tested and the second socket 312 to be tested of the circuit board 30 to be tested are electrically connected with the controllable chip 33 through differential circuits, and in addition, the first socket 311 to be tested of the circuit board 30 to be tested or the second socket 312 to be tested of the circuit board 30 to be tested may be electrically connected with the controllable chip 33 through differential circuits alone, which is only illustrative and not limiting the application scope of the present invention.
Next, the operation method of the present invention will be described below, and referring to fig. 7A and 7B, fig. 7A and 7B are flowcharts illustrating a method for providing a pin detection method for line switching by a circuit switching card according to the present invention.
The invention discloses a pin position detection method for providing line switching through a circuit switching card, which comprises the following steps:
firstly, the detection device is provided with a connection interface (step 101); next, the detection device provides a switching signal through a switching signal pin of the connection interface (step 102); next, the detecting device selects at least one detecting signal pin in the connection interface according to the switching signal to provide a detecting signal (step 103); next, the circuit switch card has a switch card connection interface, at least one multiplexer, and a switch card slot (step 104); next, the switch signal pin of the switch card slot is electrically connected with the switch signal pin and the switch signal input pin of the at least one multiplexer (step 105); next, at least one detection signal input slot pin in the conversion card slot is electrically connected with at least one detection signal pin in the connection interface and at least one detection signal input pin in the at least one multiplexer respectively (step 106); then, one of the at least one multiplexer is enabled according to the switching signal and turns on the at least one detection signal input pin of the enabled multiplexer and the at least one detection signal output pin of the enabled multiplexer according to the switching signal (step 107); next, at least one detection signal output pin of the enabled multiplexer is electrically connected with at least one detection signal interface pin of the switch card connection interface (step 108); then, the detection signals respectively pass through at least one detection signal input slot pin in the conversion card slot, at least one detection signal input pin in the enabled multiplexer, at least one detection signal output pin in the enabled multiplexer and at least one detection signal interface pin in the conversion card connection interface (step 109); next, the circuit board to be tested has at least one slot to be tested (step 110); next, at least one detecting signal slot pin in the slot to be detected is electrically connected with at least one detecting signal interface pin in the conversion card connection interface (step 111); finally, at least one detection signal slot pin in the slot to be detected converts at least one detection signal interface pin in the card connection interface to obtain a detection signal for detecting the pin (step 112).
In summary, the difference between the present invention and the prior art is that the circuit switch card enables the multiplexer in the circuit switch card through the switching signal, and the enabled multiplexer detection signal input pin and the detection signal output pin are conducted with each other according to the switching signal, so as to realize the line switching to provide the detection signal to the pin to be detected.
The technical means can solve the problems that in the prior art, the same connection interface is required to be established for different circuit boards to detect, the detection cost is increased and the transit circuit board is easy to be misused, and further achieve the technical effects of realizing the detection of the enabling of the multiplexer and the line switching pin of the conduction of the detection signal input pin and the detection signal output pin of the multiplexer according to the switching signal.
Although the embodiments of the present invention have been described above, the disclosure is not intended to limit the scope of the present invention. Those skilled in the art will recognize that the invention can be practiced with modification in form and detail without departing from the spirit and scope of the disclosure. The scope of the invention is to be defined only by the appended claims.
Claims (8)
1. A pin detection system providing line switching through a circuit switching card, comprising:
the detection device is provided with a connection interface, provides a switching signal through a switching signal pin of the connection interface, and selects at least one detection signal pin in the connection interface according to the switching signal to provide a detection signal;
a circuit switch card having a switch card connection interface, at least one multiplexer, and a switch card slot, wherein a switch signal slot pin of the switch card slot is electrically connected to the switch signal pin and a switch signal input pin of the at least one multiplexer, at least one test signal input slot pin of the switch card slot is electrically connected to the at least one test signal pin of the connection interface and the at least one test signal input pin of the at least one multiplexer, respectively, the at least one multiplexer enables the at least one test signal input pin of the multiplexer to be enabled according to the switch signal and to at least one test signal output pin of the multiplexer to be enabled according to the switch signal, the at least one test signal output pin of the at least one multiplexer is electrically connected to the at least one test signal interface pin of the switch card connection interface, and the test signal is enabled to the at least one test signal input pin of the at least one multiplexer to be enabled according to the switch signal; and
the circuit board to be tested is provided with at least one slot to be tested, at least one detection signal slot pin in the slot to be tested is electrically connected with at least one detection signal interface pin in the conversion card connection interface, and the at least one detection signal slot pin in the slot to be tested obtains the detection signal from the at least one detection signal interface pin in the conversion card connection interface so as to detect the pin.
2. The pin detection system for providing circuit switching through a circuit switching card of claim 1, wherein the at least one to-be-detected slots are of a same slot type, the at least one to-be-detected slots are of a partially identical and partially non-identical slot type, or the at least one to-be-detected slots are of a non-identical slot type.
3. The pin detection system for providing circuit switching through a circuit switching card according to claim 1, wherein the circuit board to be tested forms an electrical connection between the at least one socket to be tested through a differential circuit.
4. The pin detection system for providing circuit switching through a circuit switching card according to claim 1, wherein the circuit board to be tested further comprises a controllable chip, the at least one slot to be tested is electrically connected with the controllable chip through a differential circuit, or the at least one slot to be tested is partially electrically connected with the controllable chip through a differential circuit.
5. A pin detection method for providing line switching through a circuit switching card comprises the following steps:
the detection device is provided with a connection interface;
the detection device provides a switching signal through a switching signal pin of the connection interface;
the detection device selects at least one detection signal pin in the connection interface according to the switching signal so as to provide a detection signal;
the circuit conversion card is provided with a conversion card connection interface, at least one multiplexer and a conversion card slot;
the switching signal slot pin of the switching card slot is electrically connected with the switching signal input pin of the at least one multiplexer;
at least one detection signal input slot pin in the conversion card slot is electrically connected with the at least one detection signal pin in the connection interface and the at least one detection signal input pin in the at least one multiplexer respectively;
enabling one of the at least one multiplexer according to the switching signal and enabling the at least one detection signal input pin of the enabled multiplexer to be mutually conducted with the at least one detection signal output pin of the enabled multiplexer according to the switching signal;
the at least one detection signal output pin of the at least one multiplexer is electrically connected with at least one detection signal interface pin of the conversion card connection interface;
the detection signals respectively pass through the at least one detection signal input slot pin in the conversion card slot, the at least one detection signal input pin in the enabled multiplexer, the at least one detection signal output pin in the enabled multiplexer and the at least one detection signal interface pin in the conversion card connection interface;
the circuit board to be tested is provided with at least one slot to be tested;
at least one detection signal slot pin in the slot to be detected is electrically connected with at least one detection signal interface pin in the conversion card connection interface; and
and at least one detection signal slot pin in the slot to be detected obtains the detection signal from at least one detection signal interface pin in the conversion card connection interface so as to detect the pin.
6. The method for pin detection for circuit switching through a circuit switching card according to claim 5, wherein the at least one to-be-detected slots are of the same slot type, the at least one to-be-detected slots are of partially identical and partially non-identical slot types, or the at least one to-be-detected slots are of non-identical slot types.
7. The method for pin detection for providing circuit switching through a circuit switching card according to claim 5, wherein the circuit board to be tested forms an electrical connection between the at least one socket to be detected through a differential circuit.
8. The method for detecting pin positions by providing circuit switching through a circuit switching card according to claim 5, wherein the circuit board to be tested further comprises a controllable chip, the at least one slot to be tested is electrically connected with the controllable chip through a differential circuit, or the at least one slot to be tested is electrically connected with the controllable chip through a differential circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211107943.5A CN117741415A (en) | 2022-09-13 | 2022-09-13 | Pin detecting system providing line switching through circuit switching card and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211107943.5A CN117741415A (en) | 2022-09-13 | 2022-09-13 | Pin detecting system providing line switching through circuit switching card and method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117741415A true CN117741415A (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211107943.5A Pending CN117741415A (en) | 2022-09-13 | 2022-09-13 | Pin detecting system providing line switching through circuit switching card and method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN117741415A (en) |
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- 2022-09-13 CN CN202211107943.5A patent/CN117741415A/en active Pending
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