CN218099977U - I/O board of suspension interface box - Google Patents
I/O board of suspension interface box Download PDFInfo
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- CN218099977U CN218099977U CN202221774325.1U CN202221774325U CN218099977U CN 218099977 U CN218099977 U CN 218099977U CN 202221774325 U CN202221774325 U CN 202221774325U CN 218099977 U CN218099977 U CN 218099977U
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Abstract
The utility model relates to an IO board of suspension interface case, including the first converting circuit of high level commentaries on classics low level and the second converting circuit of low level commentaries on classics high level, can establish the relation of IO board and the upper simulation system of suspension controller board card (true or kernel integrated circuit board), it is the essential element of high-speed magnetic levitation semi-physical simulation platform suspension interface case, upward its signal (status signal) that obtains the IO board of suspension controller board card and send inserts upper simulation system, simulates the various condition of core control computer in the real car; the method comprises the steps of obtaining IO signals (command signals) of an upper simulation system downwards, sending the IO signals to an I/O board of a suspension controller board card, constructing a bridge between the upper simulation system and a suspension controller (a real part or an inner core board card), forming a part of a simulation test loop, and providing a physical platform for the simulation test system.
Description
Technical Field
The utility model relates to a suspension emulation field especially relates to a IO board of suspension interface box.
Background
The suspension controller is a core control component of a normally-conducting high-speed magnetic-levitation train, and the safe and stable operation without faults is the key for guaranteeing the safety and reliability of a suspension vehicle system. Therefore, complete fault hidden danger detection, dynamic performance test and the like are required before the suspension controller is assembled to the suspension vehicle or after the suspension controller is used for a period of time; especially, when the suspension controller breaks down, the fault location and maintenance are required to be completed with the assistance of the ground detection platform.
In the prior art, fault hidden danger detection, dynamic performance test, fault positioning and maintenance depend on special equipment such as a ground test platform, equipment such as a real vehicle suspension frame, a track, a sensor, an electromagnet and the like is often needed, the manufacturing cost is high, and the test function is limited.
Therefore, how to set a universal controller signal conversion interface device and establish the connection between the upper simulation system and the I/O board of the levitation controller on the basis of establishing the upper simulation system is a technical problem to be solved in various detection tests of the levitation controller.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a suspension interface box's IO board, include:
the first conversion circuit from high level to low level is used for converting high level signals sent by an I/O board of the suspension controller board card into low level signals, integrating the low level signals into signal data and sending the signal data to an upper simulation system;
and the second conversion circuit from low level to high level is used for converting low level signals sent by the upper simulation system into high level signals and sending the high level signals to the I/O board of the suspension controller board card.
Further, the first conversion circuit comprises a first resistor, a second resistor, a third resistor and a first triode;
the first end of the first resistor is connected with the state signal input end, and the second end of the first resistor is connected with the first end of the second resistor;
the first end of the second resistor is also connected with the first end of the first triode; the second end of the second resistor is connected with the ground;
the third end of the first triode is connected with the second end of the third resistor and the state signal output end, and the second end of the first triode is connected with the ground;
the first end of the third resistor is connected with a power supply.
Furthermore, the first resistor is 20K, the second resistor is 1K, and the third resistor is 3K.
Further, a second conversion circuit includes: the fourth resistor, the fifth resistor, the sixth resistor and the second triode;
the first end of the fourth resistor is connected with the command signal input end, and the second end of the fourth resistor is connected with the first end of the fifth resistor;
the first end of the fifth resistor is also connected with the first end of the second triode; the second end of the fifth resistor is connected with the ground;
the third end of the second triode is connected with the second end of the sixth resistor and the command signal output end, and the second end of the second triode is connected with the ground;
the first end of the sixth resistor is connected with the power supply.
Further, the fourth resistor is 1K, the fifth resistor is 1K, and the sixth resistor is 10K.
Further, a third conversion circuit is also included; the third conversion circuit includes: the device comprises a current-limiting resistor, a photoelectric coupler and a pull-down resistor;
the first end of the current-limiting resistor is connected with the in-phase signal input end, and the second end of the current-limiting resistor is connected with a pin 1 at the input end of the photoelectric coupler;
the pin 2 at the input end of the photoelectric coupler is connected with the ground;
the output end pin 3 of the photoelectric coupler is connected with the first end of the pull-down resistor and the in-phase signal output end;
the 4 pins of the output end of the photoelectric coupler are connected with a power supply;
the second end of the pull-down resistor is connected with the ground.
Further, the resistance of the current limiting resistor is 330 Ω, and the resistance of the pull-down resistor is 10K.
Further, the high-level signal is a status signal sent by an I/O board of the floating controller board card.
Further, the low level signal is a command signal sent by the upper simulation system.
The utility model provides a suspension interface box's IO board can establish the relation of suspension controller (true or kernel integrated circuit board) IO board and host simulation system, and it is the main part of high-speed magnetic levitation semi-physical simulation platform suspension interface box, and it acquires the signal (status signal) that suspension controller board card's IO board sent and inserts host simulation system up, simulates the various circumstances of core control computer in the true car; the method comprises the steps of obtaining IO signals (command signals) of an upper simulation system downwards, sending the IO signals to an I/O board of a suspension controller board card, constructing a bridge between the upper simulation system and a suspension controller (a real part or an inner core board card), forming a part of a simulation test loop, and providing a physical platform for the simulation test system.
Drawings
FIG. 1 is a block diagram of an embodiment of an I/O board of the present invention;
fig. 2 is a block diagram of an embodiment of a first conversion circuit of the I/O board of the floating interface box according to the present invention;
fig. 3 is a block diagram of an embodiment of a second conversion circuit of the I/O board of the floating interface box according to the present invention;
fig. 4 is a block diagram of an embodiment of a third converting circuit of the I/O board of the suspension interface box of the present invention.
Detailed Description
As shown in fig. 1, the present invention provides an I/O board of a suspension interface box, comprising:
a: the first conversion circuit from high level to low level is used for converting high level signals sent by an I/O board of the suspension controller board card into low level signals, integrating the low level signals into signal data and sending the signal data to an upper simulation system; specifically, the high-level signal may be selected from, but not limited to, status signals sent by the I/O board of the floating controller board card, including a reed inflation control command, a reed current-related exhaust channel 1, a reed current-related exhaust channel 2, a local redundant status signal, a brake current off status output signal, a fan power supply (24V) detection signal, a maximum brake current status output signal, and status signals (HEB _ RzN _ P, HEB _ RzN _ N) output to the next stage in two ways. More specifically, the high level signal sent by the I/O board of the floating controller board card through the DB37 is converted into a low level signal through the I/O board of the floating interface box, and then the low level signal reaches the control board of the floating interface box through the bottom board of the floating interface box, and finally the high level signal is sent to the upper simulation system through the connector.
B: and the second conversion circuit from low level to high level is used for converting low level signals sent by the upper simulation system into high level signals and sending the high level signals to the I/O board of the suspension controller board card. Specifically, the low level signal may be, but not limited to, a Command signal sent by an upper simulation system, and includes 6 external Command signals Command11, 12, 13, 21, 22, and 23, an adjacent point redundant state signal, a fan rotation speed pulse signal, an air spring minimum pressure monitoring signal, an air spring semi-air discharge monitoring signal, and an air spring inflation monitoring signal. More specifically, the low level signal that this upper simulation system sent, but optional control panel, the bottom plate connector etc. that is not only limited to through the suspension interface case transmit extremely the utility model discloses a suspension interface case's IO board converts high level signal into again, sends the IO board for suspension controller board card through DB 37.
In the embodiment, the connection between the I/O board of the suspension controller board card (a real or kernel board card) and the upper simulation system is established through the I/O board of the suspension interface box, the connection is a main component of the suspension interface box of the high-speed magnetic suspension semi-physical simulation platform, signals (state signals) sent by the I/O board of the suspension controller board card are acquired by the suspension interface box and are accessed to the upper simulation system, and various conditions of a core control computer on a real vehicle are simulated; the method comprises the steps of obtaining IO signals (command signals) of an upper simulation system downwards, sending the IO signals to an I/O board of a suspension controller board card, constructing a bridge between the upper simulation system and a suspension controller (a real part or an inner core board card), forming a part of a simulation test loop, and providing a physical platform for the simulation test system.
Preferred A1: as shown in fig. 2, the first switching circuit may optionally, but not exclusively, include a first resistor R1, a second resistor R2, a third resistor R3, and a first transistor Q1. The first end of the first resistor is connected with a state signal input end (a state signal sent on the suspension controller board card), and the second end of the first resistor is connected with the first end of the second resistor; the first end of the second resistor is also connected with the first end of the first triode; the second end of the second resistor is connected with the ground; the third end of the first triode is connected with the second end of the third resistor and the state signal output end (the upper end is connected to the upper simulation system), and the second end is connected with the ground; the first end of the third resistor is connected with a power supply. Specifically, the types of the components, such as the resistance value of the resistor, the type of the first triode, and the like, can be set by a person skilled in the art. Preferably, the first resistor is 20K, the second resistor is 1K, the third resistor is 3K, the first triode is selected from MMBT3904, and the power supply is +3.3V.
In this embodiment, a specific embodiment of the first conversion circuit from high level to low level is given, when the input is low level, the first triode is cut off, and the output is pulled up to 3.3V; when the input voltage is 24V, the first triode is conducted, the output voltage is pulled down to be low level, and high level signals sent by an I/O board of the floating controller board card can be converted into low level signals to be sent to the upper simulation system.
More preferably, B1: as shown in fig. 3, the second converting circuit, optionally but not limited to, includes: a fourth resistor R4, a fifth resistor R5, a sixth resistor R6 and a second triode Q2. The first end of the fourth resistor is connected with a command signal input end (a command signal issued by an upper simulation system), and the second end of the fourth resistor is connected with the first end of the fifth resistor; the first end of the fifth resistor is also connected with the first end of the second triode; the second end of the fifth resistor is connected with the ground; the third end of the second triode is connected with the second end of the sixth resistor and the command signal output end (issued to the floating controller board card), and the second end of the second triode is connected with the ground; and the first end of the sixth resistor is connected with a power supply. Specifically, the types of the components, such as the resistance value of the resistor, the type of the second triode, and the like, can be set by a person skilled in the art. Preferably, the fourth resistor is 1K, the fifth resistor is 1K, the sixth resistor is 10K, the second triode is MMBT3904, and the power supply is +24V.
In this embodiment, a specific embodiment of the second conversion circuit from low level to high level is shown, when a 3.3V (high level output by ARM) signal is input, the transistor is turned on, and the output is pulled to ground and is at low level. When a low level (low level output by the ARM) signal is input, the triode is cut off, the output is pulled up to 24V, the output is high level, and the low level signal sent by the upper simulation system can be converted into a high level signal to be sent to the I/O board of the suspension controller board card.
Preferably, as shown in fig. 4, a third converting circuit is further included, optionally but not limited to including: a current limiting resistor R49, a photoelectric coupler (optical coupler for short) and a pull-down resistor R46; the first end of the current-limiting resistor is connected with the in-phase signal input end, and the second end of the current-limiting resistor is connected with a pin 1 at the input end of the photoelectric coupler; the pin 2 at the input end of the photoelectric coupler is connected with the ground; the pin 3 of the output end of the photoelectric coupler is connected with the first end of the pull-down resistor and the in-phase signal output end; the 4 pins of the output end of the photoelectric coupler are connected with a power supply; the second end of the pull-down resistor is connected with the ground. Specifically, the types of the components, such as the resistance value of the resistor, the type of the photoelectric coupler, and the like, can be set by a person skilled in the art. Preferably, the resistance of the current-limiting resistor at the input end is 330 Ω, the resistance of the pull-down resistor at the output end is 10K, the TLP521-1 for the photoelectric coupler is used, and the power supply is +24V.
In this embodiment, a specific embodiment of a third conversion circuit for converting a low level to a high level is given, when a low level (a low level output by an ARM) signal is input, the optocoupler is turned off and outputs a low level; when a 3.3V (high level output by ARM) signal is input, the optical coupler is conducted and outputs 24V high level; redundant signals of an adjacent controller (another real kernel computer) can be sent to the I/O board of the local suspension control board card.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. An I/O board of a floating interface box, comprising:
the first conversion circuit from high level to low level is used for converting high level signals sent by an I/O board of the suspension controller board card into low level signals, integrating the low level signals into signal data and sending the signal data to an upper simulation system;
and the second conversion circuit for converting the low level signal sent by the upper simulation system into the high level signal and sending the high level signal to the I/O board of the suspension controller board card.
2. The I/O board of claim 1, wherein the first switching circuit comprises a first resistor, a second resistor, a third resistor and a first transistor;
the first end of the first resistor is connected with the state signal input end, and the second end of the first resistor is connected with the first end of the second resistor;
the first end of the second resistor is also connected with the first end of the first triode; the second end of the second resistor is connected with the ground;
the third end of the first triode is connected with the second end of the third resistor and the state signal output end, and the second end of the first triode is connected with the ground;
the first end of the third resistor is connected with a power supply.
3. The I/O board of claim 2, wherein the first resistor has a resistance of 20K, the second resistor has a resistance of 1K, and the third resistor has a resistance of 3K.
4. The I/O board of the floating interface box of claim 1, wherein the second switching circuit comprises: the fourth resistor, the fifth resistor, the sixth resistor and the second triode;
the first end of the fourth resistor is connected with the command signal input end, and the second end of the fourth resistor is connected with the first end of the fifth resistor;
the first end of the fifth resistor is also connected with the first end of the second triode; the second end of the fifth resistor is connected with the ground;
the third end of the second triode is connected with the second end of the sixth resistor and the command signal output end, and the second end of the second triode is connected with the ground;
and the first end of the sixth resistor is connected with a power supply.
5. The I/O board of claim 4, wherein the fourth resistor has a resistance of 1K, the fifth resistor has a resistance of 1K, and the sixth resistor has a resistance of 10K.
6. The I/O board of the floating interface box of claim 1, further comprising a third conversion circuit; the third conversion circuit includes: the current limiting resistor, the photoelectric coupler and the pull-down resistor;
the first end of the current-limiting resistor is connected with the in-phase signal input end, and the second end of the current-limiting resistor is connected with a pin 1 at the input end of the photoelectric coupler;
the pin 2 at the input end of the photoelectric coupler is connected with the ground;
the pin 3 of the output end of the photoelectric coupler is connected with the first end of the pull-down resistor and the in-phase signal output end;
4 pins of the output end of the photoelectric coupler are connected with a power supply;
the second end of the pull-down resistor is connected with the ground.
7. The I/O board of claim 6, wherein the current limiting resistor has a resistance of 330 Ω and the pull-down resistor has a resistance of 10K.
8. The I/O board of the floating interface box of any of claims 1-7, wherein the high level signal is a status signal sent by the I/O board of the floating controller board card.
9. The I/O board of the floating interface box of claim 8, wherein the low level signal is a command signal sent by an upper simulation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221774325.1U CN218099977U (en) | 2022-07-11 | 2022-07-11 | I/O board of suspension interface box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221774325.1U CN218099977U (en) | 2022-07-11 | 2022-07-11 | I/O board of suspension interface box |
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| Publication Number | Publication Date |
|---|---|
| CN218099977U true CN218099977U (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221774325.1U Active CN218099977U (en) | 2022-07-11 | 2022-07-11 | I/O board of suspension interface box |
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| CN (1) | CN218099977U (en) |
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2022
- 2022-07-11 CN CN202221774325.1U patent/CN218099977U/en active Active
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