CN218601423U - Switch state detection circuit and spacecraft - Google Patents
Switch state detection circuit and spacecraft Download PDFInfo
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- CN218601423U CN218601423U CN202222849126.9U CN202222849126U CN218601423U CN 218601423 U CN218601423 U CN 218601423U CN 202222849126 U CN202222849126 U CN 202222849126U CN 218601423 U CN218601423 U CN 218601423U
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Abstract
The utility model discloses a switch state detection circuitry, spacecraft. The switch state detection circuit includes: the device comprises a relay, a first resistor and an impedance detection module; the relay comprises a linked switch and a switch to be detected, wherein the linked switch is synchronous in state, the first end of the linked switch is grounded, the second end of the linked switch is electrically connected with the state quantity detection end of the switch state detection circuit, and the state quantity detection end is used for being connected with the first detection end of the impedance detection module; the first end of the switch to be detected is connected with a first preset voltage, and the second end of the switch to be detected is used for connecting an external load; the first end of the first resistor is electrically connected with the second end of the ganged switch, and the second end of the first resistor is grounded; and the second detection end of the impedance detection module is used for grounding. The utility model discloses can solve the problem that the spacecraft can't detect the on-off state when not going up the electricity.
Description
Technical Field
The utility model relates to an on-off state detects technical field, especially relates to an on-off state detection circuitry, spacecraft.
Background
The switch state detection has important application in modern society, for example, in the field of spacecrafts, the satellite products carry more and more load single machines, and the detection of the switch state is more and more important.
The existing switch state detection circuit can only detect after the spacecraft is powered on, and cannot detect when the spacecraft is not powered on, so that the further application of the spacecraft is limited.
SUMMERY OF THE UTILITY MODEL
The utility model provides a on-off state detection circuitry, spacecraft to the unable problem that detects the on-off state when solving the spacecraft and not going up the electricity.
According to the utility model discloses an aspect provides a switch state detection circuitry, switch state detection circuitry includes:
the device comprises a relay, a first resistor and an impedance detection module;
the relay comprises a linked switch and a switch to be detected, wherein the linked switch is synchronous in state, the first end of the linked switch is grounded, the second end of the linked switch is electrically connected with the state quantity detection end of the switch state detection circuit, and the state quantity detection end is used for being connected with the first detection end of the impedance detection module;
the first end of the switch to be detected is connected with a first preset voltage, and the second end of the switch to be detected is used for connecting an external load;
the first end of the first resistor is electrically connected with the second end of the ganged switch, and the second end of the first resistor is grounded;
and the second detection end of the impedance detection module is used for grounding.
Optionally, the switch state detection circuit further includes:
a first end of the second resistor is connected to a second preset voltage, and a second end of the second resistor is electrically connected with the first end of the first resistor;
and the voltage detection module is used for being electrically connected with the state quantity detection end.
Optionally, the switch state detection circuit further includes: a switch; the state quantity detection end is electrically connected with the impedance detection module and the voltage detection module through the selector switch;
the common end of the change-over switch is electrically connected with the state quantity detection end, the first end of the change-over switch is electrically connected with the impedance detection module, the second end of the change-over switch is electrically connected with the voltage detection module, and the change-over switch can conduct the first end of the change-over switch with the common end of the change-over switch or conduct the second end of the change-over switch with the common end of the change-over switch according to a control signal.
Optionally, the switch state detection circuit further includes:
a third resistor and a filter capacitor;
the first end of the third resistor is electrically connected with the first end of the second resistor, and the second end of the third resistor is electrically connected with the second end of the second resistor;
the first end of the filter capacitor is electrically connected with the first end of the first resistor, and the second end of the filter capacitor is electrically connected with the second end of the first resistor.
Optionally, the switch state detection circuit further includes a fourth resistor;
and the second end of the linkage switch is electrically connected with the state quantity detection end through the fourth resistor.
Optionally, the switch state detection circuit further includes a voltage regulator tube, a first end of the voltage regulator tube is electrically connected to the state quantity detection end, and a second end of the voltage regulator tube is grounded.
Optionally, the switch state detection circuit further includes an auxiliary relay, and a switch of the auxiliary relay is connected in parallel with the switch to be detected.
Optionally, the relay is a magnetic latching relay.
According to the utility model discloses an on the other hand provides a spacecraft, spacecraft includes spacecraft body and foretell on-off state detection circuitry.
Optionally, the switch state detection circuit further includes: a first end of the second resistor is connected to a second preset voltage, and a second end of the second resistor is electrically connected with the first end of the first resistor; the voltage detection module is used for being electrically connected with the state quantity detection end;
the spacecraft also comprises a communication module, and the communication module is used for transmitting the voltage quantity detected by the voltage detection module to an external server.
The utility model discloses technical scheme, the on-off state detection circuitry who adopts includes: the device comprises a relay, a first resistor and an impedance detection module; the relay comprises a linked switch and a switch to be detected, wherein the linked switch is synchronous in state, the first end of the linked switch is grounded, the second end of the linked switch is electrically connected with the state quantity detection end of the switch state detection circuit, and the state quantity detection end is used for being connected with the first detection end of the impedance detection module; the first end of the switch to be detected is connected with a first preset voltage, and the second end of the switch to be detected is used for connecting an external load; the first end of the first resistor is electrically connected with the second end of the ganged switch, and the second end of the first resistor is grounded; the second detection end of the impedance detection module is used for grounding. The state of the switch to be detected can be judged by detecting the impedance between the state quantity detection end and the ground, and the detection of the state of the switch to be detected is realized when the spacecraft is not electrified.
It should be understood that the statements herein are not intended to identify key or critical features of any embodiment of the present invention, nor are they intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.
Fig. 1 is a schematic circuit diagram of a switch state detection circuit according to an embodiment of the present invention;
fig. 2 is a schematic circuit diagram of a further switch state detection circuit according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of another switch state detection circuit according to an embodiment of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic circuit structure diagram of a switch state detection circuit provided by an embodiment of the present invention, referring to fig. 1, the switch state detection circuit includes: the device comprises a relay 11, a first resistor R1 and an impedance detection module 13; the relay 11 comprises a linked switch K1 and a switch K2 to be detected, wherein the states of the linked switch K1 are synchronous, the first end of the linked switch K1 is grounded, the second end of the linked switch K1 is electrically connected with a state quantity detection end TM of the switch state detection circuit, and the state quantity detection end TM is used for being connected with a first detection end of the impedance detection module 13; a first end of the switch K2 to be detected is connected to a first preset voltage V1, and a second end of the switch K2 to be detected is used for being connected with an external load 12; the first end of the first resistor R1 is electrically connected with the second end of the ganged switch K1, and the second end of the first resistor R1 is grounded; the second detection terminal of the impedance detection module 13 is used for grounding.
Specifically, the switch state detection circuit can be used in a spacecraft, and the switch K2 to be detected is also a switch in the spacecraft, which needs to detect the switch state; the switch K2 to be detected and the linkage switch K1 belong to the same relay, the switch states of the two are the same, namely when the switch K2 to be detected is closed, the linkage switch K1 is also closed; when the switch K2 to be detected is opened, the linkage switch K1 is also opened, so that the state of the switch K2 to be detected can be determined according to the state of the linkage switch K1. The external load 12 is an internal load of the spacecraft, when the spacecraft is not powered on, the first end of the switch K2 to be detected has no input, and after the spacecraft is powered on, the first end of the switch K2 to be detected can input a first preset voltage.
When the spacecraft is not powered on, if the switch K2 to be detected is closed, the linkage switch K1 is also closed at the moment, the state detection end TM is directly short-circuited to the ground by the linkage switch K1, the impedance between the state quantity detection end TM and the ground is 0 at the moment, and the impedance detected by the impedance detection module 13 is 0 at the moment; when the switch K2 to be detected is turned on, the ganged switch K1 is also turned on, and a first resistor R1 exists between the state quantity detection end TM and the ground, so that the impedance between the state quantity detection end TM and the ground is the resistance value of the first resistor R1, and the impedance detected by the impedance detection module 13 is the resistance value of the first resistor R1; therefore, the state of the switch to be detected can be judged through the impedance detected by the impedance detection module 13, and the state detection of the switch to be detected when the spacecraft is not powered on is realized. It should be noted that, in the above embodiment, the impedance detection module may be a multimeter.
When the spacecraft is powered on, the state of the switch K2 to be detected can be judged through the impedance detected by the impedance detection module 13, the detection principle is the same as that of the spacecraft, and details are not repeated here.
In the technical solution of this embodiment, the switch state detection circuit includes: the device comprises a relay, a first resistor and an impedance detection module; the relay comprises a linked switch and a switch to be detected, wherein the linked switch is synchronous in state, the first end of the linked switch is grounded, the second end of the linked switch is electrically connected with the state quantity detection end of the switch state detection circuit, and the state quantity detection end is used for being connected with the first detection end of the impedance detection module; the first end of the switch to be detected is connected with a first preset voltage, and the second end of the switch to be detected is used for connecting an external load; the first end of the first resistor is electrically connected with the second end of the ganged switch, and the second end of the first resistor is grounded; and the second detection end of the impedance detection module is used for grounding. The state of the switch to be detected can be judged by detecting the impedance between the state quantity detection end and the ground, and the detection of the state of the switch to be detected is realized when the spacecraft is not electrified.
Optionally, fig. 2 is a schematic circuit diagram of a circuit structure of another switch state detection circuit provided by an embodiment of the present invention, referring to fig. 2, the switch state detection circuit further includes: a first end of the second resistor R2 is connected with a second preset voltage, and a second end of the second resistor R2 is electrically connected with a first end of the first resistor R1; and the voltage detection module 14, wherein the voltage detection module 14 is used for being electrically connected with the state quantity detection end TM.
In particular, when the spacecraft is powered on, if the impedance is still detected, the impedance may be detected inaccurately. Therefore, in this embodiment, a second resistor R2 and a voltage detection module 14 may be provided, and when the spacecraft is not powered on, the voltage at the first end of the second resistor R2 is 0, so that the impedance detection module 13 is used to detect the impedance at this time without being affected. When the spacecraft is powered on, the voltage of the first end of the second resistor R2 is V2, and at the moment, the first resistor R1 and the second resistor R2 form a voltage division network; when the switch K2 to be detected is turned off, the linkage switch K1 is also turned off, the voltage detection module 14 is equivalently grounded, and the detected voltage is 0; when the switch K2 to be detected is closed, the ganged switch K1 is also closed, and the voltage detected by the voltage detection module 14 is the divided voltage of the first resistor R1 and the second resistor R2 to the second preset voltage V2. Therefore, the state of the switch K2 to be detected can be determined according to the voltage value detected by the voltage detection module 14. In the above embodiments, the first preset voltage V1 may be 3v,5v,12v,28v, or 45V; the second preset voltage V2 may be 3v,5v,12v,28v, 45V, or the like.
It should be noted that, in the above embodiment, only the impedance detection module 13 may be connected to the state quantity detection terminal TM when the spacecraft is not powered on, and only the voltage detection module 14 may be connected to the state quantity detection terminal TM after the spacecraft is powered on, so as to avoid mutual interference between the two.
Preferably, as shown in fig. 2, the switch state detection circuit further includes a switch 15, and the state quantity detection end TM is electrically connected to the impedance detection module 13 and the voltage detection module 14 through the switch 15; the common terminal of the switch 15 is electrically connected to the state quantity detection terminal TM, the first terminal of the switch 14 is electrically connected to the impedance detection module 13, the second terminal of the switch 15 is electrically connected to the voltage detection module 14, and the switch can conduct the first terminal thereof with the common terminal thereof or conduct the second terminal thereof with the common terminal thereof according to a control signal.
Specifically, the switch 15 is configured to conduct its first terminal with its common terminal when the spacecraft is not powered on; after the spacecraft is powered on, the second end of the spacecraft is conducted with the common end of the spacecraft; accordingly, it can be realized that only the impedance detection module 13 is connected to the state quantity detection end TM when the spacecraft is not powered on, and only the voltage detection module 14 is connected to the state quantity detection end TM after the spacecraft is powered on, so as to avoid mutual interference between the two.
Alternatively, referring to fig. 1 and 2, the switch state detection circuit further includes: a third resistor R3 and a filter capacitor C; a first end of the third resistor R3 is electrically connected with a first end of the second resistor R2, and a second end of the third resistor R3 is electrically connected with a second end of the second resistor R2; the first end of the filter capacitor C is electrically connected with the first end of the first resistor R1, and the second end of the filter capacitor C is electrically connected with the second end of the first resistor R1.
Specifically, the filter capacitor C and the third resistor R3 form a filter network, which has a filtering function, and can prevent noise from interfering with the impedance detection module 13 or the voltage detection module 14, thereby affecting the accuracy of detection.
Optionally, fig. 3 is a schematic circuit structure diagram of another switch state detection circuit provided by an embodiment of the present invention, referring to fig. 3, the switch state detection circuit further includes a fourth resistor R4, and the ganged switch K1 is electrically connected to the state quantity detection end TM through the fourth resistor R4.
In particular, the fourth resistor R4 may be used for limiting current, so as to prevent a large current from affecting the voltage detection module. Therefore, the fourth resistor R4 can be provided to greatly improve the detection accuracy.
Optionally, with reference to fig. 3, the switch state detection circuit further includes a voltage regulator tube D, a first end of the voltage regulator tube D is electrically connected to the state quantity detection end TM, and a second end of the voltage regulator tube D is grounded. Through setting up the stabilivolt, can carry out steady voltage to the voltage of quantity of state detection end TM, further improve the accuracy that voltage detection module detected.
Optionally, in the above embodiment, the relay 11 is a magnetic latching relay having two contacts, one of which is responsible for opening and the other of which is responsible for closing the switch. In addition, the switch state detection circuit can also comprise an auxiliary relay, and a switch in the auxiliary relay is connected with the switch K2 to be detected in parallel. The auxiliary relay can be used for standby, and the spacecraft can not be used when the relay 11 is damaged.
The embodiment of the utility model provides a still provide a spacecraft, the spacecraft includes the utility model discloses the on-off state detection circuitry that arbitrary embodiment provided, because of it includes the utility model discloses the on-off state detection circuitry that arbitrary embodiment provides, therefore also have the same beneficial effect, no longer describe here. The spacecraft may be, for example, a satellite or the like.
In the above embodiment, the spacecraft may further include a communication module for transmitting the voltage detected by the voltage detection module to an external server. The computing resources in the satellite are precious, so that the detected voltage can be transmitted to an external server through a voltage detection module, and the state of the switch to be detected is judged by the external server. The external server may be, for example, a calculator or the like on the ground.
It should be understood that various forms of the flows shown above may be used, with steps reordered, added, or deleted. For example, the steps described in the present invention may be executed in parallel, may be executed sequentially, or may be executed in different orders, as long as the desired result of the technical solution of the present invention can be achieved, and the present invention is not limited thereto.
The above detailed description does not limit the scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A switch state detection circuit, comprising:
the device comprises a relay, a first resistor and an impedance detection module;
the relay comprises a linked switch and a switch to be detected, wherein the states of the linked switch are synchronous, the first end of the linked switch is grounded, the second end of the linked switch is electrically connected with the state quantity detection end of the switch state detection circuit, and the state quantity detection end is used for being connected with the first detection end of the impedance detection module;
the first end of the switch to be detected is connected with a first preset voltage, and the second end of the switch to be detected is used for connecting an external load;
the first end of the first resistor is electrically connected with the second end of the ganged switch, and the second end of the first resistor is grounded;
and the second detection end of the impedance detection module is used for being grounded.
2. The switch state detection circuit of claim 1, further comprising:
a first end of the second resistor is connected to a second preset voltage, and a second end of the second resistor is electrically connected with the first end of the first resistor;
and the voltage detection module is used for being electrically connected with the state quantity detection end.
3. The switch state detection circuit of claim 2, further comprising: a switch; the state quantity detection end is electrically connected with the impedance detection module and the voltage detection module through the selector switch;
the common end of the change-over switch is electrically connected with the state quantity detection end, the first end of the change-over switch is electrically connected with the impedance detection module, the second end of the change-over switch is electrically connected with the voltage detection module, and the change-over switch can conduct the first end of the change-over switch with the common end of the change-over switch or conduct the second end of the change-over switch with the common end of the change-over switch according to a control signal.
4. The switch state detection circuit of claim 2, further comprising:
a third resistor and a filter capacitor;
the first end of the third resistor is electrically connected with the first end of the second resistor, and the second end of the third resistor is electrically connected with the second end of the second resistor;
the first end of the filter capacitor is electrically connected with the first end of the first resistor, and the second end of the filter capacitor is electrically connected with the second end of the first resistor.
5. The switch state detection circuit of claim 4, further comprising a fourth resistor;
and the second end of the linkage switch is electrically connected with the state quantity detection end through the fourth resistor.
6. The switch state detection circuit according to claim 5, further comprising a voltage regulator tube, wherein a first end of the voltage regulator tube is electrically connected to the state quantity detection end, and a second end of the voltage regulator tube is grounded.
7. The switch state detection circuit according to claim 1, further comprising an auxiliary relay, a switch of the auxiliary relay being connected in parallel with the switch to be detected.
8. The switch state detection circuit of claim 1, wherein the relay is a magnetically held relay.
9. A spacecraft comprising a spacecraft body and the switch state detection circuit of any of claims 1-8.
10. A spacecraft of claim 9, wherein the switch state detection circuit further comprises: a first end of the second resistor is connected to a second preset voltage, and a second end of the second resistor is electrically connected with the first end of the first resistor; the voltage detection module is used for being electrically connected with the state quantity detection end;
the spacecraft further comprises a communication module, and the communication module is used for transmitting the voltage quantity detected by the voltage detection module to an external server.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222849126.9U CN218601423U (en) | 2022-10-27 | 2022-10-27 | Switch state detection circuit and spacecraft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222849126.9U CN218601423U (en) | 2022-10-27 | 2022-10-27 | Switch state detection circuit and spacecraft |
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| CN218601423U true CN218601423U (en) | 2023-03-10 |
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| CN202222849126.9U Active CN218601423U (en) | 2022-10-27 | 2022-10-27 | Switch state detection circuit and spacecraft |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117382917A (en) * | 2023-11-15 | 2024-01-12 | 苏州馥昶空间技术有限公司 | Unfolding mechanism unlocking control circuit and spacecraft |
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- 2022-10-27 CN CN202222849126.9U patent/CN218601423U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117382917A (en) * | 2023-11-15 | 2024-01-12 | 苏州馥昶空间技术有限公司 | Unfolding mechanism unlocking control circuit and spacecraft |
| CN117382917B (en) * | 2023-11-15 | 2024-05-28 | 苏州馥昶空间技术有限公司 | Unfolding mechanism unlocking control circuit and spacecraft |
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