CN2500032Y - New analogue channel heat spare device - Google Patents
New analogue channel heat spare device Download PDFInfo
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- CN2500032Y CN2500032Y CN 01267843 CN01267843U CN2500032Y CN 2500032 Y CN2500032 Y CN 2500032Y CN 01267843 CN01267843 CN 01267843 CN 01267843 U CN01267843 U CN 01267843U CN 2500032 Y CN2500032 Y CN 2500032Y
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- analog
- analog signal
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- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 5
- 230000003993 interaction Effects 0.000 abstract 1
- 238000004088 simulation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
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Abstract
Hot backup is an important means to enhance the system reliability. In communication and electronic system equipment, the analog signal interaction between modules is inevitable, when the modules need a hot backup, the problem on the hot backup of the analog channel has to be resolved. The novel analog channel hot backup device provided in the utility model uses an analog signal driver with a prohibition control end to form an analog signal bus, and when one analog channel is selected out, the other channels are all in the high-resistance state, and the real-time and seamless handover between the analog channels is achieved.
Description
(1) technical field: the utility model belongs to wireless communication field, comprises any application scenario that needs the analog channel Hot Spare, for example radio communication base station, cellular mobile communication base station etc.
(2) background technology:
The utility model relates to the realization technology of analog channel Hot Spare, is a kind of key technology of new raising analog module reliability.
Hot Spare is the important means that improves system reliability.In wireless communication devices, the analog signal between the module is inevitably alternately, when module needs Hot Spare, must solve the Hot Spare problem of analog channel.
The Hot Spare of analog channel adopts the variable connector method usually.That is: by adopting the back-up job of controlled variable connector (machinery or electronics) a plurality of analog channels of realization, its disadvantage is: limited, the easy insertion switch noise of bandwidth of operation, increase backboard and realize complexity etc.
(3) summary of the invention:
Novel analog passage heat backup device is forbidden that the analog signal driver held and analog signal bus constitute and is characterised in that to have adopted and has the analog signal driver forbidding holding as elementary cell by having, the output of different elementary cells is connected and composed analog signal bus, and by controlling the Hot Spare of forbidding holding the realization analog channel of elementary cell.
The novel analog passage heat backup method that the utility model proposes has been removed analog multichannel switch from, employing have the analog signal driver of forbidding control end or have forbid control end operational amplifier as elementary cell, and the output of different elementary cells is connected to form analog signal bus.Above-mentioned elementary cell forbids that by band the operational amplifier and resistance R, R1, the R2 that hold connect and compose, as shown in Figure 1.
The input/output relation of above-mentioned elementary cell can be expressed from the next:
Wherein, Ain is the elementary cell input signal; Aout is the elementary cell output signal; Ctrl is that elementary cell is forbidden logic control signal; Z is a high impedance status.
Above-mentioned elementary cell is placed the disparate modules that needs Hot Spare mutually, and with the output of the elementary cell formation analog signal bus that links together; The elementary cell of each module constitutes an analog channel that needs Hot Spare, by the Hot Spare control signal this analog channel is controlled, as shown in Figure 2.
When the analog channel A of this module of the Hot Spare control signal Ctrl1 of primary module gating, the analog channel A output main channel analog signal Aout1 of primary module, simultaneously, the standby simulation channel B of Hot Spare is output as high-impedance state each other with it, and analog signal bus ABus is not constituted influence; At this moment, the signal on the analog signal bus Abus is main channel analog signal Aout1.
When primary module breaks down or need switch to the analog channel B of spare module owing to other reason, the analog channel A of primary module is closed in the Hot Spare control signal Ctrl1 control of primary module, the analog channel B of the Hot Spare control signal Ctrl2 control gating spare module of spare module, at this moment analog signal bus ABus promptly switches to alternate channel analog signal Aout2, finishes Hot Spare and switches.
Hot Spare switch operating process from the analog channel B of spare module to the analog channel A of primary module and above-mentioned analog channel A from primary module are to the Hot Spare switch operating similar process of the analog channel B of spare module.
As mentioned above, utilize the utility model can finish the real-time seamless switching of analog channel.
Basic principle of the present utility model is described below:
And have forbid control end the analog signal driver as the basic comprising unit, this elementary cell also can constitute by having the operational amplifier of forbidding control end.When forbidding that control end is effective (high level or low level depend on the concrete model of selected driver exclusive disjunction amplifier), this elementary cell is output as high impedance status, can not cause interference to other output that links together with it that is:; When forbidding that control end is invalid (low level or high level depend on the concrete model of selected driver exclusive disjunction amplifier), this elementary cell is output as the function (as amplifying or driving etc.) of input.
Need the output of the elementary cell of backup to link together with two or more, constitute the simulation output bus.The state of simulation output bus depends on the state of forbidding control end of each elementary cell, and the control end of forbidding of generally simulating the elementary cell on the output bus only has one to be disarmed state, and other forbids that control end is effective status.
By the backup control signal control end of forbidding that is connected to the elementary cell of simulation on the output bus is controlled, gating one of them as the working cell, other elementary cell is as stand-by unit.The control end of forbidding of working cell is set to disarmed state, and the control end of forbidding of stand-by unit all is set to effective status.
The backup control signal can be produced by microprocessor, also can be produced by Digital Logical Circuits.
Novel analog passage heat backup device is characterised in that to have forbids that the analog signal driver held can forbid the operational amplifier held or substituted by the device of other same or similar function by having.The a plurality of output of forbidding the analog signal driver held formation analog signal bus that link together that have.
In sum, the design's essential characteristic is:
1, novel analog passage heat backup device forbids that by having analog signal driver and the analog signal bus held constitute.
2, realize that by the control end of forbidding of control analog signal driver the analog signal Hot Spare switches.
The beneficial effects of the utility model: utilize the design to need not the Hot Spare that variable connector can be realized a plurality of analog channels, can realize broadband analog channel Hot Spare, and do not have switching noise and disturb by selecting broad-band driver for use.
(4) description of drawings:
Fig. 1 is for constituting the element circuit schematic diagram;
Fig. 2 is the circuit theory diagrams of the utility model device;
Fig. 3 is the utility model embodiment circuit theory diagrams.
(5) embodiment:
Specific embodiment of the utility model is described as follows in conjunction with Fig. 3.
Protection of the present utility model is not subjected to the restriction of Fig. 3 feature that embodiment describes, and comprises other distortion and the change in claims scope.
Fig. 3 is the embodiment of base band sendaisle Hot Spare in the communication system.
This embodiment adopts the activestandby hot backup method, has omitted other module that has nothing to do with the design among the figure.
Among Fig. 3, A and B are that analog signal bus, Ctrl1 and Ctrl2 are that backup control signal, the Ain1 that Controlled CPU is exported is that primary module base-band input signal, Ain2 are the spare module base-band input signal for broadband analog signal driver, the ABus that can forbid.
When primary module was worked, the Controlled CPU of primary module output control signal Ctrl1 made main analog channel broadband analog signal driver A effective; The Controlled CPU output control signal Ctrl2 of spare module forbids standby simulation channel width band analog signal driver B; At this moment, the signal on the analog signal bus Abus is Aout1.
When primary module broke down or need switch to spare module owing to other reason, the Controlled CPU of primary module output control signal Ctrl1 forbade main analog channel broadband analog signal driver A; The Controlled CPU output control signal Ctrl2 of spare module makes standby simulation channel width band analog signal driver B effective; At this moment, the signal on the analog signal bus Abus is Aout2, finishes switching.
Claims (3)
1. novel analog passage heat backup device forbids that by having analog signal driver and the analog signal bus held constitute, it is characterized in that: adopt to have the analog signal driver forbidding holding as elementary cell, the output of different elementary cells is connected and composed analog signal bus, and by controlling the Hot Spare of forbidding holding the realization analog channel of elementary cell.
2. according to the novel analog passage heat backup device of claim 1, it is characterized in that: have and forbid that the analog signal driver held can forbid the operational amplifier held or substituted by the device of other same or similar function by having.
3. according to the novel analog passage heat backup device of claim 1, it is characterized in that: a plurality of output of forbidding the analog signal driver held formation analog signal bus that link together that have.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01267843 CN2500032Y (en) | 2001-10-22 | 2001-10-22 | New analogue channel heat spare device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01267843 CN2500032Y (en) | 2001-10-22 | 2001-10-22 | New analogue channel heat spare device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2500032Y true CN2500032Y (en) | 2002-07-10 |
Family
ID=33674146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01267843 Expired - Fee Related CN2500032Y (en) | 2001-10-22 | 2001-10-22 | New analogue channel heat spare device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2500032Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780111A (en) * | 2019-11-11 | 2020-02-11 | 杭州和利时自动化有限公司 | Current type analog quantity output module and control method thereof |
-
2001
- 2001-10-22 CN CN 01267843 patent/CN2500032Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780111A (en) * | 2019-11-11 | 2020-02-11 | 杭州和利时自动化有限公司 | Current type analog quantity output module and control method thereof |
| CN110780111B (en) * | 2019-11-11 | 2022-04-26 | 杭州和利时自动化有限公司 | Current type analog quantity output module and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |