CN103023554B - Switch matrix device and remote sensing satellite data receiving system comprising same - Google Patents
Switch matrix device and remote sensing satellite data receiving system comprising same Download PDFInfo
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- CN103023554B CN103023554B CN201210488500.5A CN201210488500A CN103023554B CN 103023554 B CN103023554 B CN 103023554B CN 201210488500 A CN201210488500 A CN 201210488500A CN 103023554 B CN103023554 B CN 103023554B
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Abstract
The invention provides a switch matrix device. The switch matrix device comprises multiple n input and n output units arranged in n rows and n columns; the input ends of the units in the first column form the input end of the device; the output end of each unit in the first column is respectively and electrically connected with a certain input end of each unit in a second column, the output end of each unit in the second column is respectively and electrically connected with a certain input end of each unit in a third column, and the output ends and input ends mutually in electrical connections are in one-to-one correspondence; the output ends of the units in the third column form the output end of the device, wherein the units have the function that the signal output from any output end of the units according to a predetermined control signal is the one input by any predetermined input end of the units. The invention further provides a remote sensing satellite data receiving system. The system comprises antenna equipment, channel equipment and recording equipment, and further comprises a switch matrix device and a control device, wherein the switch matrix device is inserted between the antenna device and the channel device so as to optimize the configuration of the equipment, and the control device is used for setting the switching state of the switch matrix device.
Description
Technical field
The present invention relates to remote sensing satellite data receiver technical field, specifically, relate to a kind of switch matrix device and comprise the remote sensing satellite data receiving system of this device.
Background technology
At present, the remote sensing satellite data receiving system set up in remote sensing satellite DRS generally comprises many cover remote sensing satellite data receiver subsystems, and often overlapping subsystem and have a style of one's own, is separate each other substantially.
Fig. 1 is schematic diagram, shows existing remote sensing satellite data receiving system.As shown in Figure 1, existing remote sensing satellite data receiving system comprises many cover remote sensing satellite data receiver subsystems, often overlap subsystem and mainly comprise antenna equipment 10, radio equipment 20 and recording equipment 30, wherein, radio equipment 20 mainly comprises frequency converter 21 and demodulator 22.Antenna equipment 10 receives satellite RF signal, and the satellite RF signal received by antenna equipment 10 becomes baseband signal after radio equipment 20 frequency reducing and demodulation, and this baseband signal carries out record by recording equipment 30.
A set of remote sensing satellite data receiver subsystem only comprises a set of antenna equipment 10, but the quantity passing down passage of the satellite-signal that will be able to receive according to this cover antenna equipment 10, for this cover antenna equipment 10 is equipped with the radio equipment 20 of respective numbers, to make difference pass down the satellite-signal of passage after antenna equipment 10 receives, processed by different radio equipments 20.In this case, as shown in Figure 1, diverter switch 90 can be set at antenna equipment 10 and overlap between radio equipment 20 more.In other situation, at antenna equipment 10 and overlap between radio equipment 20, power splitter (not shown) can be set, so that the satellite-signal received by antenna equipment 10 is transferred on each cover radio equipment 20 simultaneously more.
Even so, but generally speaking, be difficult to multiplexing between the subsystems in existing remote sensing satellite data receiving system.Due to performance and the allocation problem of radio equipment, often overlap subsystem and can only receive at most the signal that several satellites pass down, sometimes in order to not lose the chance of receiving satellite signal and lower work of nonserviceabling of having to.Although arrange some diverter switches can realize some multiplexing functions in remote sensing satellite data receiving system, the switching capability of these diverter switches is more weak, is also not enough to the resource integrating whole system.Particularly, for large-scale remote sensing satellite data receiving system (such as, have ten more overlap antenna equipment and/or radio equipment even more), the integration of system resource is more difficult.
Summary of the invention
The present invention is to solve the above-mentioned technical problem that exists in prior art and making, its object is to the remote sensing satellite data receiving system a kind of switch matrix device being provided and comprising this device, make in the remote sensing satellite data receiving system with this switch matrix device, often overlap radio equipment to be connected with any antenna equipment independently by this switch matrix device, thus be convenient to carry out integration and multiplexing to intrasystem various equipment.
According to an aspect of the present invention, provide a kind of switch matrix device, it comprises the identical and switch matrix unit of each tool n input and n output of 3n function, and this 3n switch matrix unit is lined up n capable 3 and arranged; The common n of n switch matrix unit of first row
2individual input forms the input of this switch matrix device; N output of each switch matrix unit of first row is electrically connected with an input of each switch matrix unit of secondary series respectively, and the output be electrically connected to each other and input one_to_one corresponding; N output of each switch matrix unit of secondary series is electrically connected with an input of each switch matrix unit tertial respectively, and the output be electrically connected to each other and input one_to_one corresponding; The common n of tertial n switch matrix unit
2individual output forms the output of this switch matrix device, wherein, the function of the switch matrix unit of the described n of a having input and n output is, according to predetermined control signal, the signal exported from arbitrary output of this switch matrix unit is the signal inputted from predetermined arbitrary input of this switch matrix unit; N is natural number, n>=2.
Preferably, a jth output of i-th switch matrix unit of above-mentioned first row can be electrically connected with i-th input of the jth of a secondary series switch matrix unit; A jth output of i-th switch matrix unit of secondary series can be electrically connected with i-th input of a tertial jth switch matrix unit, and i, j are natural number, 1≤i≤n, 1≤j≤n.
In addition, preferably, described in there is n input and n output switch matrix unit can comprise n compensated amplifier, a n n power splitter and n n and select 1 selector, wherein, the input electrical connection of the compensated amplifier that each input is corresponding with it; The input electrical connection of the n power splitter that the output of this compensated amplifier is corresponding with it; N output of this n power splitter selects in 1 selector input to be electrically connected respectively with each n, and the output be electrically connected to each other and input one_to_one corresponding; A described n n selects the output of 1 selector to constitute n output of described switch matrix unit.Further preferably, a jth output and a jth n of i-th n power splitter select i-th of 1 selector input to be electrically connected, and i, j are natural number, 1≤i≤n, 1≤j≤n.
In the application of remote sensing satellite data receiving system, described switch matrix unit is radio-frequency (RF) switch matrix unit, and described switch matrix device is radio-frequency (RF) switch matrix arrangement.In addition, preferably, described switch matrix device is 16 × 16 switch matrix device, i.e. said n=4.
According to a further aspect in the invention, a kind of remote sensing satellite data receiving system is provided, it comprises and overlaps antenna equipment more, many covers radio equipment and overlap recording equipment more, also comprise switch matrix device and control device as elucidated before, wherein, different antenna equipments is electrically connected from the different input of described switch matrix device, different radio equipments is electrically connected from the different output of described switch matrix device, often overlap the radio equipment electrical connection that recording equipment is corresponding with it, described control device is electrically connected with described switch matrix device, for arranging the switching state of described switch matrix device.
Preferably, above-mentioned remote sensing satellite data receiving system can also comprise testing source, the first switching device shifter and test signal testing circuit, wherein, described first switching device shifter comprises two groups of inputs and one group of output, these two groups of inputs are respectively with described testing source with describedly more overlap antenna equipment and be electrically connected, and this group of output is electrically connected with the input of described switch matrix device; The output of described switch matrix device is also electrically connected with described test signal testing circuit; Described control device is also electrically connected with described first switching device shifter, for arranging the switching state of this first switching device shifter.
Further preferably, above-mentioned remote sensing satellite data receiving system can also comprise backup circuit breaker matrix arrangement and the second switching device shifter, and wherein, this backup circuit breaker matrix arrangement is identical with described switch matrix device; Described second switching device shifter comprises one group of input and two groups of outputs, this group of input is electrically connected with the output of described first switching device shifter, and these two groups of outputs are electrically connected with the input of described switch matrix device and described backup circuit breaker matrix arrangement respectively; The output of described backup circuit breaker matrix arrangement is electrically connected with the output of described switch matrix device; Described control device is also electrically connected with described second switching device shifter and described backup circuit breaker matrix arrangement respectively, for arranging the switching state of this second switching device shifter and this backup circuit breaker matrix arrangement.
In addition, preferably, above-mentioned remote sensing satellite data receiving system can also comprise display unit, and described control device is also electrically connected with this display unit, for showing the state of described remote sensing satellite data receiving system in this display unit.
In addition, preferably, in above-mentioned remote sensing satellite data receiving system, described control device can comprise RCI, for being electrically connected with remote control equipment.
According to description above and put into practice known, the invention provides a kind of switch matrix device, by arranging its state, its each output can be made to connect with arbitrary input independently.Insert described switch matrix device between many covers antenna equipment and many cover radio equipments of remote sensing satellite data receiving system after, often overlap radio equipment to be connected with any antenna equipment independently by this switch matrix device, thus be convenient to carry out integration and multiplexing to intrasystem various equipment.Switch matrix device of the present invention can be used in large-scale remote sensing satellite data receiving system (such as, have ten more overlap antenna equipment and/or radio equipment even more) in.In addition, the present invention also provides a kind of remote sensing satellite data receiving system with backup circuit breaker matrix arrangement, when switch matrix device original in this system needs maintenance, backup circuit breaker matrix arrangement can be enabled to realize antenna equipment freely switching to radio equipment at once, thus increase the reliability of system.In addition, the state of switch matrix device can be set by Long-distance Control, and can on the display apparatus the state of miscellaneous equipment in the state of switch matrix device and system be shown intuitively, thus flexible, quick, real-time control can be carried out to switch matrix arrangement, and remote monitoring can be carried out to the state of equipment, whole system operation easier is little, the response time is short and equipment control convenient.
Accompanying drawing explanation
Fig. 1 is schematic diagram, shows the structure of existing remote sensing satellite data receiving system;
Fig. 2 is circuit diagram, shows a kind of structure of 2 × 2 switch matrix unit;
Fig. 3 is circuit diagram, show described in one embodiment of the present of invention by 4 × 4 switch matrix devices of 2 × 2 switch matrix unit structures;
Fig. 4 is circuit diagram, show described in one embodiment of the present of invention by 16 × 16 switch matrix devices of 4 × 4 switch matrix unit structures;
Fig. 5 is circuit diagram, shows a kind of structure of 4 × 4 switch matrix unit;
Fig. 6 is schematic diagram, shows the structure of the remote sensing satellite data receiving system described in one embodiment of the present of invention;
Fig. 7 is schematic diagram, shows the structure of the remote sensing satellite data receiving system described in an alternative embodiment of the invention; And
Fig. 8 is schematic diagram, shows the structure of the remote sensing satellite data receiving system described in another embodiment of the present invention.
Embodiment
In the following description, for purposes of illustration, in order to provide the complete understanding to one or more embodiment, many details have been set forth.But, clearly, also these embodiments can be realized when there is no these details.In other example, one or more embodiment for convenience of description, known structure and equipment illustrate in block form an.
Come below with reference to accompanying drawings to be described in detail each embodiment according to the present invention.
First describe a kind of 2 × 2 switch matrix unit, this switch matrix unit has 2 inputs and 2 outputs, and according to predetermined control signal, the signal exported from its arbitrary output is the signal inputted from predetermined arbitrary input.Fig. 2 is circuit diagram, shows a kind of structure of 2 × 2 switch matrix unit.As shown in Figure 2, the described switch matrix unit 1 with 2 inputs (i.e. input i1 and input i2) and 2 outputs (i.e. output o1 and output o2) comprise 2 compensated amplifiers, 101,22 power splitters 102 and 22 select 1 selector 103, wherein, the input electrical connection of the compensated amplifier 101 that each input is corresponding with it; The input electrical connection of 2 power splitters 102 that the output of compensated amplifier 101 is corresponding with it; A jth output of i-th 2 power splitter 102 selects i-th input of 1 selector 103 to be electrically connected with jth individual 2, and i, j are natural number, 1≤i≤2,1≤j≤2; The output of 1 selector 103 is selected for 22 to constitute 2 outputs of 2 × 2 switch matrix unit 1.
Here, the power of compensated amplifier 101 to the signal inputted from its input amplifies, and the power of the signal be exaggerated that compensated amplifier 101 exports by 2 power splitters 102 carries out 2 deciles, then makes the signal after power 2 decile export from two output.Like this, the signal that each output of 2 power splitters 102 exports is substantially identical with the signal of input offset amplifier 101, in other words, every road input signal of switch matrix unit 1 is all being duplicated into the identical signal of 2 Ge Yugai road input signals through ovefcompensated amplifier 101 after 2 power splitters 102.Because the output of two 2 power splitters 102 and two 2 select the above-mentioned connected mode of the input of 1 selector 103, be input to each 2 and select the signal of the different inputs of 1 selector 103 from the signal of different inputs being input to switch matrix unit 1.Then, each 2 select 1 selector 103 to arrange state according to self, and a certain road signal can be selected from the signal of its input to export.Therefore, total effect is, by arranging the inside switching state (i.e. described two 2 switching states selecting 1 selector 103) of switch matrix unit 1, can make its each output independently input arbitrary with it connect.
In above-mentioned 2 × 2 switch matrix unit 1,2 outputs of each 2 power splitters 102 2 select an input in 1 selector 103 to be electrically connected with each respectively, certainly, the output be electrically connected to each other and input want one_to_one corresponding, and can not occur the situation of multipair 1.Output and 2 for 2 power splitters 102 selects the different connected modes of the input of 1 selector 103,2 select 1 selector 103 correspondingly to need to arrange different inside switching states, and the constrained input of guarantee whole switch matrix unit 1 has same corresponding relation.
The switch matrix device that the switch matrix unit structure exponent number that exponent number can be used low is high.Fig. 3 is circuit diagram, show described in one embodiment of the present of invention by 4 × 4 switch matrix devices of 2 × 2 switch matrix unit structures.
As shown in Figure 3, described in one embodiment of the present of invention by 4 × 4 switch matrix device 40(4 × 4 of 2 × 2 switch matrix unit structures) comprise the identical and switch matrix unit 1 of each tool 2 inputs and 2 outputs of 6 functions, these 6 switch matrix unit 1 are lined up 2 row 3 and are arranged; Totally 4 inputs of 2 switch matrix unit of first row form switch matrix device 40(4 × 4) input (i.e. input i1-i4); A jth output of i-th switch matrix unit of first row is electrically connected with i-th input of a jth switch matrix unit of secondary series; A jth output of i-th switch matrix unit of secondary series is electrically connected with i-th input of a tertial jth switch matrix unit, and i, j are natural number, 1≤i≤2,1≤j≤2; Totally 4 outputs of tertial 2 switch matrix unit form this switch matrix device 40(4 × 4) output (i.e. output o1-o4).Here, the switch matrix unit 1 with 2 inputs and 2 outputs can be as above face 2 × 2 switch matrix unit described in conjunction with Figure 2, its function is, according to predetermined control signal, the signal exported from arbitrary output is the signal inputted from predetermined arbitrary input.
As shown in Figure 3, if the input of above-mentioned 4 × 4 switch matrix devices is i1-i4, the signal inputted from each input is accordingly designated as 1,2,3,4 respectively.The possible signal exported from two outputs of first 2 × 2 switch matrix unit of first row is designated as (1,2) respectively
1, (1,2)
2, its implication is respectively, and the signal that the signal that the first output of this switch matrix unit may export is 1 or 2, the second output may export is 1 or 2.The possible signal exported from two outputs of second 2 × 2 switch matrix unit of first row is designated as (3,4) respectively
1, (3,4)
2, the signal that the signal that the first output that its implication is respectively this switch matrix unit may export is 3 or 4, the second output may export is 3 or 4.
In like manner, the possible signal exported from two outputs of first 2 × 2 switch matrix unit of secondary series is respectively ((1,2)
1, (3,4)
1)
1, ((1,2)
1, (3,4)
1)
2, the possible signal exported from two outputs of second 2 × 2 switch matrix unit of secondary series is respectively ((1,2)
2, (3,4)
2)
1, ((1,2)
2, (3,4)
2)
2.It should be noted that for example, although can be all the arbitrary signal 1,2,3,4 from the possible signal of the first and second outputs outputs of first 2 × 2 switch matrix unit of secondary series, the signal exported from these two outputs be independently.Obviously, such as, when the first output outputs signal 1, the second output can not output signal 2, only may output signal a signal in 1,3,4; And when the first output outputs signal 2, the second output can not output signal 1, only may output signal a signal in 2,3,4, because the signal 1 or 2 that these two outputs export is from same source.
Similarly, from the output o1-o2 of two outputs (i.e. described switch matrix device 40(4 × 4) of the 3rd row first 2 × 2 switch matrix unit) the possible signal that exports is respectively (((1,2)
1, (3,4)
1)
1, ((1,2)
2, (3,4)
2)
1)
1, (((1,2)
1, (3,4)
1)
1, ((1,2)
2, (3,4)
2)
1)
2.Output o3-o4 from two outputs (i.e. described switch matrix device 40(4 × 4) of tertial second 2 × 2 switch matrix unit) the possible signal that exports is respectively (((1,2)
1, (3,4)
1)
2, ((1,2)
2, (3,4)
2)
2)
1, (((1,2)
1, (3,4)
1)
2, ((1,2)
2, (3,4)
2)
2)
2.From above-mentioned signal representation, by arranging switch matrix device 40(4 × 4) in the switching state of each switch matrix unit, each output of this device can be made to connect by input arbitrary with it independently.
Should note, in above-mentioned switch matrix device 40(4 × 4) in, 2 outputs of each switch matrix unit of first row are electrically connected with an input of each switch matrix unit of secondary series respectively, certainly, the output be electrically connected to each other and input want one_to_one corresponding, and can not occur the situation of multipair 1.The connection of the input of each switch matrix unit during the output and the 3rd of each switch matrix unit in secondary series arranges also is like this.In this case, by correspondingly arranging the switching state of each switch matrix unit, these device 40(4 × 4 can be made equally) each output can connect by input arbitrary with it independently.
Fig. 4 is circuit diagram, show described in one embodiment of the present of invention by 16 × 16 switch matrix devices of 4 × 4 switch matrix unit structures.
As shown in Figure 4, described in one embodiment of the present of invention by 16 × 16 switch matrix device 40(16 × 16 of 4 × 4 switch matrix unit structures) comprise the identical and switch matrix unit of each tool 4 inputs and 4 outputs of 12 functions, these 12 switch matrix unit are lined up 4 row 3 and are arranged; Totally 16 inputs of 4 switch matrix unit of first row form switch matrix device 40(16 × 16) input 40a; A jth output of i-th switch matrix unit of first row is electrically connected with i-th input of a jth switch matrix unit of secondary series; A jth output of i-th switch matrix unit of secondary series is electrically connected with i-th input of a tertial jth switch matrix unit, and i, j are natural number, 1≤i≤4,1≤j≤4; Totally 16 outputs of tertial 4 switch matrix unit form this switch matrix device 40(4 × 4) output 40b.Here, the described function with the switch matrix unit of 4 inputs and 4 outputs is, according to predetermined control signal, the signal exported from arbitrary output of this switch matrix unit can be the signal inputted from predetermined arbitrary input of this switch matrix unit.With reference to above-mentioned to 40(4 × 4) description of switch matrix device, can verifying, by arranging the switching state of each 4 × 4 switch matrix unit, said apparatus 40(16 × 16 can be made) each output can connect by input arbitrary with it independently.
In above-mentioned switch matrix device 40(16 × 16) in, 4 outputs of each switch matrix unit of first row are electrically connected with an input of each switch matrix unit of secondary series respectively, certainly, the output be electrically connected to each other and input want one_to_one corresponding, and can not occur the situation of multipair 1.The connection of the input of each switch matrix unit during the output and the 3rd of each switch matrix unit in secondary series arranges also is like this.In this case, by correspondingly arranging the switching state of each switch matrix unit, these device 40(16 × 16 can be made equally) each output can connect by input arbitrary with it independently.
Above-mentioned switch matrix device 40(16 × 16) in 4 × 4 switch matrix unit switch matrix device 40(4 × 4 that can be described by composition graphs 3) realize, also can be realized by 4 × 4 switch matrix unit described below in conjunction with Fig. 5.
Fig. 5 is circuit diagram, shows a kind of structure of 4 × 4 switch matrix unit.As shown in Figure 5,4 × 4 switch matrix unit 1 ' have 4 inputs (i.e. input i1-i4) and 4 outputs (i.e. output o1-o4), its inside comprise 4 compensated amplifiers, 101,44 power splitters 102 ' and 44 select 1 selector 103 ', wherein, the input electrical connection of the compensated amplifier 101 that each input is corresponding with it; The input electrical connection of 4 power splitters 102 ' that the output of compensated amplifier 101 is corresponding with it; A jth output of i-th 4 power splitter 102 ' selects i-th of 1 selector 103 ' input to be electrically connected with jth individual 4, and i, j are natural number, 1≤i≤4,1≤j≤4; The output of 1 selector 103 ' is selected for 44 to constitute 4 outputs of 4 × 4 switch matrix unit 1 '.Act on described 44 select control signal on 1 selector 103 ' according to predetermined, the signal exported from arbitrary output of this 4 × 4 switch matrix unit can be the signal inputted from predetermined arbitrary input of this 4 × 4 switch matrix unit.
The operation principle of above-mentioned 4 × 4 switch matrix unit is similar to the operation principle of previously described 2 × 2 switch matrix unit, just repeats no more here.Similarly, in above-mentioned 4 × 4 switch matrix unit, 4 outputs of each 4 power splitters 102 ' 4 select in 1 selector 103 ' input to be electrically connected with each respectively, certainly, the output be electrically connected to each other and input want one_to_one corresponding, and can not occur the situation of multipair 1.
From description below, 16 × 16 switch matrix devices as above for the satellite signal receiving terminal of the overwhelming majority application enough.It can integrate nearly 16 cover antenna equipments and 16 cover radio equipments.But still can do further genralrlization to above-mentioned switch matrix device.
Specifically, the present invention also provides a kind of switch matrix device, and it comprises the identical and switch matrix unit of each tool n input and n output of 3n function, and this 3n switch matrix unit is lined up n capable 3 and arranged; The common n of n switch matrix unit of first row
2individual input forms the input of this switch matrix device; A jth output of i-th switch matrix unit of first row is electrically connected with i-th input of a jth switch matrix unit of secondary series; A jth output of i-th switch matrix unit of secondary series is electrically connected with i-th input of a tertial jth switch matrix unit, and i, j are natural number, 1≤i≤n, 1≤j≤n, the common n of tertial n switch matrix unit
2individual output forms the output of this switch matrix device, wherein, the function of the switch matrix unit of the described n of a having input and n output is, according to predetermined control signal, the signal exported from arbitrary output is the signal inputted from predetermined arbitrary input; N is natural number, n>=2.
Further, n output of each switch matrix unit of above-mentioned first row is electrically connected with an input of each switch matrix unit of secondary series respectively, but the output be electrically connected to each other and input want one_to_one corresponding.In like manner, n output of each switch matrix unit of secondary series is electrically connected with an input of each switch matrix unit tertial respectively, but the output be electrically connected to each other and input want one_to_one corresponding.
The switch matrix unit of the described n of a having input and n output can comprise n compensated amplifier, a n n power splitter and n n and select 1 selector, wherein, and the input electrical connection of the compensated amplifier that each input is corresponding with it; The input electrical connection of the n power splitter that the output of this compensated amplifier is corresponding with it; A jth output and a jth n of i-th n power splitter select i-th of 1 selector input to be electrically connected, and i, j are natural number, 1≤i≤n, 1≤j≤n; A described n n selects the output of 1 selector to constitute n output of described switch matrix unit.
Further, n output of above-mentioned each n power splitter selects in 1 selector input to be electrically connected respectively with each n, but the output be electrically connected to each other and input want one_to_one corresponding.
Switch matrix device as above can be used in remote sensing satellite data receiving system, with the antenna equipment in integration system and radio equipment.
Fig. 6 is schematic diagram, shows the structure of the remote sensing satellite data receiving system of the above-mentioned switch matrix device of use described in one embodiment of the present of invention.
As shown in Figure 6, remote sensing satellite data receiving system described in one embodiment of the present of invention comprises many cover antenna equipments 10, many covers radio equipment 20 and many cover recording equipments 30, also comprise foregoing switch matrix device 40(such as 16 × 16 switch matrix devices) and control device 50, wherein, often overlap radio equipment 20 and mainly comprise frequency converter 21 and demodulator 22, different antenna equipments 10 is electrically connected from the different input of switch matrix device 40, different radio equipments 20 is electrically connected from the different output of switch matrix device 40, the radio equipment 20 often overlapping recording equipment 30 corresponding with it is electrically connected, control device 50 is electrically connected with switch matrix device 40, for arranging the switching state of switch matrix device 40, namely the switching state of each switch matrix unit in switch matrix device 40 is set.
Should note, because the signal passed down from remote sensing satellite is radiofrequency signal, therefore, each switch matrix unit in switch matrix device 40 should be radio-frequency (RF) switch matrix unit, thus switch matrix device 40 is radio-frequency (RF) switch matrix arrangement, can switch by radio frequency satellite-signal.
In addition, electrical connection recited above can be direct electrical connection, also can be the electrical connection by other device (as switching device shifter, amplifying device etc.).
Insert switch matrix device 40 between many covers antenna equipment 10 and many cover radio equipments 20 of remote sensing satellite data receiving system after, the switching state of each switch matrix unit in switch matrix device 40 is set by control device 50, can make often to overlap radio equipment 10 can both be connected with any antenna equipment 10 independently by this switch matrix device 40, thus be convenient to carry out integration and multiplexing to intrasystem various equipment, even can reduce some redundance units, thus save substantial contribution.
In addition, above-mentioned remote sensing satellite data receiving system can also comprise display unit 60.Control device 50 is also electrically connected with this display unit 60, for showing the state of described remote sensing satellite data receiving system in this display unit.Specifically, such as, the switching state of each switch matrix unit in switch matrix device 40 and connection status can show by display unit 60 intuitively, thus are convenient to the actual annexation of staff's confirmation or change antenna equipment 10 and radio equipment 20.
Moreover above-mentioned control device 50 can also comprise RCI, for being electrically connected with remote control equipment.Like this, staff is just facilitated to carry out remote monitoring and control by remote control equipment to the state of the equipment in system.
Before use remote sensing satellite data receiving system receiving satellite signal of the present invention, should first test the switch matrix device in this system, with guarantee annexation between antenna equipment and radio equipment and connection status normally errorless.In addition, also should test radio equipment, to guarantee that radio equipment can receive and tracer signal.Use aforesaid switch matrix device also can be incorporated in system by system test equipment very easily, and simplify the operating process of test.
Fig. 7 is schematic diagram, shows the structure of the remote sensing satellite data receiving system described in an alternative embodiment of the invention.As shown in Figure 7, testing source 200, first switching device shifter 71 and test signal testing circuit 210 can also be comprised with reference to the remote sensing satellite data receiving system described by figure 6, wherein, first switching device shifter 71 comprises two groups of inputs and one group of output, these two groups of inputs are respectively with testing source 200 with overlap antenna equipment 10 more and be electrically connected, and this group of output is electrically connected with the input of switch matrix device 40; The output of switch matrix device 40 is also electrically connected with test signal testing circuit 210.Control device 50 is also electrically connected with the first switching device shifter 71, for arranging the switching state of the first switching device shifter 71.
Before receiving satellite signal, control device 50 arranges the switching state of the first switching device shifter 71, make testing source 200 by switch matrix device 40 with multiple radio equipment 20 and be connected with test signal testing circuit 210, wherein, test signal testing circuit 210 can the output end signal of monitoring switch matrix arrangement 40.Testing source 200 comprises signal generator 201 and coupled multiselect one selector 202.Each input that testing source 200 can be followed successively by switch matrix device 40 in the mode of scanning provides signal.By the response of test signal testing circuit 210, can judge whether each input of switch matrix device 40 establishes correct connection with predetermined output.If the correct connection of setting up, then the test of switch matrix device 40 terminates; If there is incorrect connection, then adjusted the inside switching state of switch matrix device 40 by control device 50.By display unit 60, this adjustment process can complete soon.
In above process, also can the operating state of often overlapping radio equipment be tested simultaneously.
After the test process of system completes, control device 50 arranges the switching state of the first switching device shifter 71, make many cover antenna equipments 10 by switch matrix device 40 with how overlap radio equipment 20 and connects, thus it is ready to be that antenna equipment 10 receives remote sensing satellite signal.
From describing above, described switch matrix device is in the position that throat wants road in remote sensing satellite data receiving system.Once switch matrix device breaks down, so probably just mean the failure of satellite signal receiving.In order to improve the reliability of remote sensing satellite data receiving system, can also switch matrix device for subsequent use be set in remote sensing satellite data receiving system.
Fig. 8 is schematic diagram, shows the structure of the remote sensing satellite data receiving system described in another embodiment of the present invention.As shown in Figure 8, can also comprise backup circuit breaker matrix arrangement 80 and the second switching device shifter 72 with reference to the remote sensing satellite data receiving system described by figure 7, wherein, backup circuit breaker matrix arrangement 80 is identical with switch matrix device 40; Second switching device shifter 72 comprises one group of input and two groups of outputs, and this group of input is electrically connected with the output of the first switching device shifter 71, and these two groups of outputs are electrically connected with the input of switch matrix device 40 and backup circuit breaker matrix arrangement 80 respectively; The output of backup circuit breaker matrix arrangement 80 is electrically connected with the output of switch matrix device 40; Control device 50 is also electrically connected with the second switching device shifter 72 and backup circuit breaker matrix arrangement 80 respectively, for arranging the switching state of the second switching device shifter 72 and backup circuit breaker matrix arrangement 80.
When remote sensing satellite data receiving system receiving satellite signal, control device 50 arranges the switching state of the second switching device shifter 72, makes switch matrix device 40 enter system.If switch matrix device 40 breaks down or suspected malfunctions in the course of the work, then control device 50 is by arranging the switching state of the second switching device shifter 72, backup circuit breaker matrix arrangement 80 can be made to enter system rapidly, and substitute the switch matrix device 40 gone wrong, thus ensure that satellite signal receiving process is not interrupted.Certainly, under normal conditions, switch matrix device 40 and backup circuit breaker matrix arrangement 80 can be also used alternatingly, so that the maintenance of system.
To be shown specifically and the preferred embodiment described discloses the present invention although combined, but those skilled in the art are to be understood that, the switch matrix device proposed for the invention described above and the remote sensing satellite data receiving system comprising this device, can also make various improvement on the basis not departing from content of the present invention.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (8)
1. a remote sensing satellite data receiving system, comprises and overlaps antenna equipment, many cover radio equipments more and overlap recording equipment more, also comprise switch matrix device, testing source, the first switching device shifter, test signal testing circuit and control device,
Wherein, described switch matrix device comprises the identical and switch matrix unit of each tool n input and n output of 3n function, and this 3n switch matrix unit is lined up n capable 3 and arranged; The common n of n switch matrix unit of first row
2individual input forms the input of this switch matrix device; N output of each switch matrix unit of first row is electrically connected with an input of each switch matrix unit of secondary series respectively, and the output be electrically connected to each other and input one_to_one corresponding; N output of each switch matrix unit of secondary series is electrically connected with an input of each switch matrix unit tertial respectively, and the output be electrically connected to each other and input one_to_one corresponding; The common n of tertial n switch matrix unit
2individual output forms the output of this switch matrix device, wherein, the function of the switch matrix unit of the described n of a having input and n output is, according to predetermined control signal, the signal exported from arbitrary output of this switch matrix unit is the signal inputted from predetermined arbitrary input of this switch matrix unit; N is natural number, n>=2, and described switch matrix unit is radio-frequency (RF) switch matrix unit, and described switch matrix device is radio-frequency (RF) switch matrix arrangement,
Wherein, described first switching device shifter comprises two groups of inputs and one group of output, and these two groups of inputs are respectively with described testing source with describedly more overlap antenna equipment and be electrically connected, and this group of output is electrically connected with the input of described switch matrix device; Different radio equipments is electrically connected from the different output of described switch matrix device, often overlaps the radio equipment electrical connection that recording equipment is corresponding with it; The output of described switch matrix device is also electrically connected with described test signal testing circuit,
Wherein, described control device is electrically connected with described switch matrix device, and for arranging the switching state of described switch matrix device, and described control device is also electrically connected with described first switching device shifter, for arranging the switching state of this first switching device shifter.
2. remote sensing satellite data receiving system as claimed in claim 1, also comprise backup circuit breaker matrix arrangement and the second switching device shifter, wherein, this backup circuit breaker matrix arrangement is identical with described switch matrix device; Described second switching device shifter comprises one group of input and two groups of outputs, this group of input is electrically connected with the output of described first switching device shifter, and these two groups of outputs are electrically connected with the input of described switch matrix device and described backup circuit breaker matrix arrangement respectively; The output of described backup circuit breaker matrix arrangement is electrically connected with the output of described switch matrix device; Described control device is also electrically connected with described second switching device shifter and described backup circuit breaker matrix arrangement respectively, for arranging the switching state of this second switching device shifter and this backup circuit breaker matrix arrangement.
3. remote sensing satellite data receiving system as claimed in claim 1 or 2, also comprise display unit, described control device is also electrically connected with this display unit, for showing the state of described remote sensing satellite data receiving system in this display unit.
4. remote sensing satellite data receiving system as claimed in claim 1 or 2, wherein, described control device comprises RCI, for being electrically connected with remote control equipment.
5. remote sensing satellite data receiving system as claimed in claim 1, wherein, in described switch matrix device, a jth output of i-th switch matrix unit of first row is electrically connected with i-th input of a jth switch matrix unit of secondary series; A jth output of i-th switch matrix unit of secondary series is electrically connected with i-th input of a tertial jth switch matrix unit, and i, j are natural number, 1≤i≤n, 1≤j≤n.
6. remote sensing satellite data receiving system as claimed in claim 1, wherein, in described switch matrix device, the switch matrix unit of the described n of a having input and n output comprises n compensated amplifier, a n n power splitter and n n and selects 1 selector, wherein, the input electrical connection of the compensated amplifier that each input is corresponding with it; The input electrical connection of the n power splitter that the output of this compensated amplifier is corresponding with it; N output of this n power splitter selects in 1 selector input to be electrically connected respectively with each n, and the output be electrically connected to each other and input one_to_one corresponding; A described n n selects the output of 1 selector to constitute n output of described switch matrix unit.
7. remote sensing satellite data receiving system as claimed in claim 6, wherein, in described switch matrix device, a jth output and a jth n of i-th n power splitter select i-th of 1 selector input to be electrically connected, and i, j are natural number, 1≤i≤n, 1≤j≤n.
8. remote sensing satellite data receiving system as claimed in claim 1, wherein, n=4.
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| CN103336511B (en) * | 2013-06-27 | 2015-10-21 | 西安空间无线电技术研究所 | A kind of switch matrix universalization control system and control method |
| CN104460423B (en) * | 2014-10-30 | 2017-04-05 | 中国电子科技集团公司第三十六研究所 | A kind of drive control circuit |
| CN104932326B (en) * | 2015-05-04 | 2017-12-22 | 深圳市国电科技通信有限公司 | signal switching matrix |
| CN105510736B (en) * | 2015-11-26 | 2019-03-12 | 北京东方计量测试研究所 | A kind of test macro and method of satellite borne equipment |
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