CN201464767U - Power distribution protective circuit of multispectral remote sensing CCD camera power supply - Google Patents
Power distribution protective circuit of multispectral remote sensing CCD camera power supply Download PDFInfo
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- CN201464767U CN201464767U CN2009201085393U CN200920108539U CN201464767U CN 201464767 U CN201464767 U CN 201464767U CN 2009201085393 U CN2009201085393 U CN 2009201085393U CN 200920108539 U CN200920108539 U CN 200920108539U CN 201464767 U CN201464767 U CN 201464767U
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- power supply
- distribution
- power
- relay
- steering order
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Abstract
The utility model relates to a power distribution protective circuit of a multispectral remote sensing CCD camera power supply. A relay is selected as an apparatus for realizing switching-on and switching-off of power distribution, and parallel redundancy design is adopted for each switching-on channel and each switching-off channel. A circuit port comprises a satellite general power supply input end, a power-up instruction control input end, a power-down instruction control input end and a remote sensing CCD camera power supply output end. By arranging the power distribution protective circuit in a power distribution circuit, the sequence of primary power distribution and secondary power distribution required by the power distribution protective circuit of the multispectral remote sensing CCD camera power supply can be ensured, the damage of the CCD camera caused by the operation error of the primary power distribution and the secondary power distribution can be avoided, the reliability of the power distribution circuit is improved, and effective protection is formed for the electronic components of a subsequent circuit.
Description
Technical field
The utility model relates to a kind of holding circuit that is applied to space flight multispectral remote sensing CCD camera power supply.
Background technology
Multispectral remote sensing CCD camera power supply power distribution circuit strict once, secondary power distribution order, power distribution circuit adopts the mode of control magnetic latching relay passage closure, disconnection to realize the function of different distribution orders.Fig. 1 has provided power distribution circuit form on present a kind of typical star, power distribution circuit adds cut-offing instruction by the reception distribution and carries out distribution, as shown in Figure 1, its principle of work is: V_IN202 is as the input end of power supply on the star, respectively via relay passage 210 and relay passage 212 carry out once, the secondary power supply distribution, wherein, when input instruction V1_ON201 is effective, relay passage 210 open circuits, when input instruction V1_OFF203 was effective, relay passage 210 opened circuit; When input instruction V2_OFF204 is effective, relay passage 212 open circuits, when input instruction 205V2_ON was effective, relay passage 212 opened circuit.Multispectral remote sensing CCD camera distribution sequence requirement primary power distribution powers up prior to secondary power distribution, cut off the power supply in secondary power distribution after the primary power distribution, for the steering order sequence of operation strict requirement is arranged, but be not difficult to find from circuit theory, this circuit exists because the steering order maloperation, cause after the primary power distribution in primary power distribution power up, primary power distribution is prior to the hidden danger of secondary power distribution outage, both meetings cause permanent lesion for the CCD camera.
The utility model content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art; a kind of normal distribution of power supply that both can guarantee is provided, can have avoided again because the steering order maloperation causes the multispectral remote sensing CCD camera power supply power distribution protection circuit of distribution sequence error.
Technical solution of the present utility model is: multispectral remote sensing CCD camera power supply power distribution protection circuit, comprise the overall power input V_IN of satellite, the relay primary power distribution passage of two parallel connections, the relay secondary power distribution passage of two parallel connections, CCD camera primary power distribution power output end V1_OUT, CCD camera secondary power distribution power output end V2_OUT, the power supply distribution once powers up steering order input end V1_ON, the power supply distribution steering order input end V1_OFF that once cuts off the power supply, power supply distribution secondary powers up steering order input end V2_ON, power supply distribution secondary outage steering order input end V2_OFF, the relay power distribution of two parallel connections steering order passage that once cuts off the power supply, the relay power distribution secondary of two parallel connections powers up the steering order passage, the power supply distribution steering order relay output end V1_D that once cuts off the power supply, power supply distribution secondary powers up steering order relay output end V2_T; The input power supply of the overall power input V_IN of described satellite connects an end of relay primary power distribution passage, the other end of relay primary power distribution passage is connected to CCD camera primary power distribution power output end V1_OUT, the input power supply of the overall power input V_IN of described satellite also connects an end of relay secondary power distribution passage, and the other end of relay secondary power distribution passage is connected to CCD camera secondary power distribution power output end V2_OUT; The power supply distribution once powers up once the cut off the power supply instruction closure and the disconnection of pilot relay primary power distribution passage respectively of steering order relay output end V1_D of the instruction of steering order input end V1_ON and power supply distribution; Power supply distribution secondary powers up the instruction of steering order relay output end V2_T and the instruction closure and the disconnection of pilot relay secondary power distribution passage respectively of power supply distribution secondary outage steering order input end V2_OFF; The power supply distribution steering order input end V1_OFF that once cuts off the power supply connects once a cut off the power supply end of steering order passage of relay power distribution, once the cut off the power supply other end of steering order passage of relay power distribution connects the power supply distribution steering order relay output end V1_D that once cuts off the power supply, power supply distribution secondary powers up steering order input end V2_ON and connects the end that relay power distribution secondary powers up the steering order passage, and the other end connection power supply distribution secondary that relay power distribution secondary powers up the steering order passage powers up steering order relay output end V2_T; The instruction that the instruction of power supply distribution secondary outage steering order input end V2_OFF and power supply distribution secondary power up steering order relay output end V2_T once the cut off the power supply closure and the disconnection of steering order passage of pilot relay power supply distribution respectively; The power supply distribution once power up the instruction of steering order input end V1_ON and power supply distribution once cut off the power supply steering order relay output end V1_D instruction respectively pilot relay power supply distribution secondary power up the closure and the disconnection of steering order passage.
Once the cut off the power supply relay power distribution secondary of steering order passage and two parallel connections of the relay power distribution of described two parallel connections powers up the steering order passage and adopts four single channel relays, or two binary channels relays, or single four-way relay is realized.
The relay secondary power distribution passage of the relay primary power distribution passage of described two parallel connections and two parallel connections adopts four single channel relays, or two binary channels relays, or single four-way relay is realized.
Described relay is a magnetic latching relay.
The utility model advantage compared with prior art is: the utility model has adopted the scheme of controlling in proper order for the distribution steering order, has reached three advantages:
1. secondary power distribution powers up steering order and powers up the steering order input prior to primary power distribution, and this power distribution protection circuit secondary power distribution does not power up, and has promptly realized the defencive function that primary power distribution can not afterwards power up in secondary power distribution;
2. primary power distribution outage steering order is prior to the input of secondary power distribution outage steering order, this power distribution protection circuit primary power distribution is not cut off the power supply, and has promptly realized the defencive function that primary power distribution can not power up prior to secondary power distribution;
3. all passages adopt form in parallel, and when one of them passage damaged, the another one passage can continue to use, and does not influence the function of circuit, has improved reliability.
Description of drawings
Fig. 1 is CCD camera power supply power distribution circuit figure on a kind of type star that adopts at present;
Fig. 2 is the circuit diagram of the utility model spectral remote sensing CCD camera power supply power distribution protection circuit.
Embodiment
As shown in Figure 2, the multispectral resources remote sensing CCD of the utility model camera power supply power distribution circuit comprises the overall power input V_IN202 of satellite, the relay primary power distribution passage 210 of two parallel connections, 211, the relay secondary power distribution passage 212 of two parallel connections, 213, CCD camera primary power distribution power output end V1_OUT214, CCD camera secondary power distribution power output end V2_OUT215, the power supply distribution once powers up steering order input end V1_ON201, the power supply distribution steering order input end V1_OFF203 that once cuts off the power supply, power supply distribution secondary powers up steering order input end V2_ON205, power supply distribution secondary outage steering order input end V2_OFF204, the relay power distribution of two parallel connections steering order passage 206 that once cuts off the power supply, 207, the relay power distribution secondary of two parallel connections powers up steering order passage 208,209, the power supply distribution steering order relay output end V1_D216 that once cuts off the power supply, power supply distribution secondary powers up steering order relay output end V2_T217, wherein passage 210 and 211 is the relay passage of primary power source distribution, passage 212 and 213 is the relay passage of secondary power supply distribution, passage 206 and 207 relay passages for the outage steering order, passage 208 and 209 relay passages for the energising steering order, passage 210,211,212,213 can adopt four single channel relays to realize, also can adopt two binary channels relays to realize, perhaps adopt single four-way relay to realize.In like manner, passage 206,207,208,209 can adopt four single channel relays to realize, also can adopt two binary channels relays to realize, perhaps adopts single four-way relay to realize.
In the utility model circuit, all passages initially are off-state, and CCD camera primary power distribution power output end V1_OUT214 output is invalid, and CCD camera secondary power distribution power output end V2_OUT215 output is invalid.At first, the power supply distribution once powers up steering order input end V1_ON201 input effectively, it is closed simultaneously that the input power supply of the overall power input V_IN202 of satellite connects relay primary power distribution parallel port 210 and 211, CCD camera primary power distribution power output end V1_OUT214 output is effective, and it is closed simultaneously that relay power distribution secondary powers up steering order parallel port 208 and 209.Secondly, power supply distribution secondary powers up steering order input end V2_ON205 input effectively, it is effective that power supply distribution secondary powers up steering order relay output end V2_T217, it is closed simultaneously that the input power supply of the overall power input V_IN202 of satellite connects relay secondary power distribution parallel port 212 and 213, and CCD camera secondary power distribution power output end V2_OUT215 output effectively; Then, power supply distribution secondary outage steering order input end V2_OFF204 input effectively, relay secondary power distribution parallel port 212 and 213 disconnects simultaneously, CCD camera secondary power distribution power output end V2_OUT215 output is invalid, relay power distribution once cut off the power supply steering order parallel port 206 and 207 closures simultaneously; At last, the power supply distribution once cuts off the power supply steering order input end V1_OFF203 input effectively, the power supply distribution steering order relay output end V1_D216 that once cuts off the power supply, relay primary power distribution parallel port 210 and 211 disconnects simultaneously, and CCD camera primary power distribution power output end V1_OUT214 output is invalid.
Need to prove, in the process that CCD camera power supply distribution powers up, if power supply distribution secondary powers up steering order input end V2_ON205 and once powers up steering order input end V1_ON201 input effectively prior to the power supply distribution, because relay power distribution secondary powered up steering order parallel port 208 and 209 and was in the state of disconnection simultaneously this moment, it is effective that power supply distribution secondary powers up steering order relay output end V2_T217, CCD camera secondary power distribution power output end V2_OUT215 output is invalid, like this, this circuit can avoid because in the power supply distribution process because once, secondary powering order mistake causes the infringement of successor device.In the process of CCD camera power supply distribution outage, steering order input end V1_OFF203 prior to power supply distribution secondary outage steering order input end V2_OFF204 input effectively if the power supply distribution once cuts off the power supply, because relay power distribution secondary powered up steering order parallel port 208 and 209 and was in the state of disconnection simultaneously this moment, the power supply distribution once cuts off the power supply, and V1_D216 is invalid for the steering order relay output end, CCD camera secondary power distribution power output end V2_OUT215 output is still effective, like this, this circuit can avoid because in the power supply distribution process because once, secondary power down sequence mistake causes the infringement of successor device.
The relay of being mentioned in the utility model can adopt the multi-channel magnetic guard relay, also can select single channel magnetic latching relay or single channel electrical relay for use, because increase reliability and dwindle the PCB size, selected the multi-channel magnetic guard relay for use in the utility model.
The content that is not described in detail in the utility model instructions belongs to those skilled in the art's known technology.
Claims (4)
1. multispectral remote sensing CCD camera power supply power distribution protection circuit, it is characterized in that comprising: the overall power input V_IN of satellite (202), the relay primary power distribution passage (210 of two parallel connections, 211), the relay secondary power distribution passage (212 of two parallel connections, 213), CCD camera primary power distribution power output end V1_OUT (214), CCD camera secondary power distribution power output end V2_OUT (215), the power supply distribution once powers up steering order input end V1_ON (201), the power supply distribution steering order input end V1_OFF (203) that once cuts off the power supply, power supply distribution secondary powers up steering order input end V2_ON (205), power supply distribution secondary outage steering order input end V2_OFF (204), the relay power distribution of two parallel connections steering order passage (206 that once cuts off the power supply, 207), the relay power distribution secondary of two parallel connections powers up steering order passage (208,209), the power supply distribution steering order relay output end V1_D (216) that once cuts off the power supply, power supply distribution secondary powers up steering order relay output end V2_T (217); The input power supply of the overall power input V_IN of described satellite (202) connects an end of relay primary power distribution passage (210,211), the other end of relay primary power distribution passage (210,211) is connected to CCD camera primary power distribution power output end V1_OUT (214), the input power supply of the overall power input V_IN of described satellite (202) also connects an end of relay secondary power distribution passage (212,213), and the other end of relay secondary power distribution passage (212,213) is connected to CCD camera secondary power distribution power output end V2_OUT (215); The power supply distribution once powers up once the cut off the power supply instruction closure and the disconnection of pilot relay primary power distribution passage (210,211) respectively of steering order relay output end V1_D (216) of the instruction of steering order input end V1_ON (201) and power supply distribution; Power supply distribution secondary powers up the instruction of steering order relay output end V2_T (217) and the instruction closure and the disconnection of pilot relay secondary power distribution passage (212,213) respectively of power supply distribution secondary outage steering order input end V2_OFF (204); The power supply distribution steering order input end V1_OFF (203) that once cuts off the power supply connects the relay power distribution steering order passage (206 that once cuts off the power supply, 207) a end, the relay power distribution steering order passage (206 that once cuts off the power supply, 207) the other end connects the power supply distribution steering order relay output end V1_D (216) that once cuts off the power supply, power supply distribution secondary powers up steering order input end V2_ON (205) connection relay power distribution secondary and powers up steering order passage (208,209) a end, relay power distribution secondary powers up steering order passage (208,209) the other end connects power supply distribution secondary and powers up steering order relay output end V2_T (217); The instruction that the instruction of power supply distribution secondary outage steering order input end V2_OFF (204) and power supply distribution secondary power up steering order relay output end V2_T (217) once the cut off the power supply closure and the disconnection of steering order passage (206,207) of pilot relay power supply distribution respectively; The power supply distribution once power up the instruction of steering order input end V1_ON (201) and power supply distribution once cut off the power supply steering order relay output end V1_D (216) instruction respectively pilot relay power supply distribution secondary power up the closure and the disconnection of steering order passage (208,209).
2. multispectral remote sensing CCD camera power supply power distribution protection circuit according to claim 1; it is characterized in that: once the cut off the power supply relay power distribution secondary of steering order passage (206,207) and two parallel connections of the relay power distribution of described two parallel connections powers up steering order passage (208,209) and adopts four single channel relays; or two binary channels relays, or single four-way relay is realized.
3. multispectral remote sensing CCD camera power supply power distribution protection circuit according to claim 1 and 2; it is characterized in that: the relay primary power distribution passage (210,211) of described two parallel connections and the relay secondary power distribution passage (212,213) of two parallel connections adopt four single channel relays; or two binary channels relays, or single four-way relay is realized.
4. multispectral remote sensing CCD camera power supply power distribution protection circuit according to claim 3, it is characterized in that: described relay is a magnetic latching relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201085393U CN201464767U (en) | 2009-06-05 | 2009-06-05 | Power distribution protective circuit of multispectral remote sensing CCD camera power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201085393U CN201464767U (en) | 2009-06-05 | 2009-06-05 | Power distribution protective circuit of multispectral remote sensing CCD camera power supply |
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| Publication Number | Publication Date |
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| CN201464767U true CN201464767U (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201085393U Expired - Fee Related CN201464767U (en) | 2009-06-05 | 2009-06-05 | Power distribution protective circuit of multispectral remote sensing CCD camera power supply |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103631168A (en) * | 2013-12-04 | 2014-03-12 | 中国飞机强度研究所 | Structural function test control device |
| CN104714582A (en) * | 2015-03-09 | 2015-06-17 | 中国科学院长春光学精密机械与物理研究所 | spaceborne camera power supply system based on magnetic latching relay |
| CN107835339A (en) * | 2017-09-30 | 2018-03-23 | 中国科学院长春光学精密机械与物理研究所 | A kind of space camera cmos image sensor locking means of defence and system |
| CN114326473A (en) * | 2021-11-30 | 2022-04-12 | 中国科学院长春光学精密机械与物理研究所 | Program control instruction circuit for on-track operation of space optical remote sensor |
-
2009
- 2009-06-05 CN CN2009201085393U patent/CN201464767U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103631168A (en) * | 2013-12-04 | 2014-03-12 | 中国飞机强度研究所 | Structural function test control device |
| CN104714582A (en) * | 2015-03-09 | 2015-06-17 | 中国科学院长春光学精密机械与物理研究所 | spaceborne camera power supply system based on magnetic latching relay |
| CN107835339A (en) * | 2017-09-30 | 2018-03-23 | 中国科学院长春光学精密机械与物理研究所 | A kind of space camera cmos image sensor locking means of defence and system |
| CN107835339B (en) * | 2017-09-30 | 2019-12-27 | 中国科学院长春光学精密机械与物理研究所 | Locking protection method and system for CMOS image sensor of space camera |
| CN114326473A (en) * | 2021-11-30 | 2022-04-12 | 中国科学院长春光学精密机械与物理研究所 | Program control instruction circuit for on-track operation of space optical remote sensor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20160605 |