CN109596173A - The building safety monitoring information collecting device and method of time-sharing multiplex - Google Patents
The building safety monitoring information collecting device and method of time-sharing multiplex Download PDFInfo
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- CN109596173A CN109596173A CN201811511333.5A CN201811511333A CN109596173A CN 109596173 A CN109596173 A CN 109596173A CN 201811511333 A CN201811511333 A CN 201811511333A CN 109596173 A CN109596173 A CN 109596173A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 127
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000000926 separation method Methods 0.000 claims description 21
- 238000005070 sampling Methods 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000002123 temporal effect Effects 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 3
- 230000035939 shock Effects 0.000 claims description 3
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- 238000004088 simulation Methods 0.000 description 2
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
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- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/1205—Multiplexed conversion systems
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
- H03M1/1245—Details of sampling arrangements or methods
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Abstract
The building safety monitoring information collecting device of time-sharing multiplex designed by the present invention, the clock signal output end connection that module occurs for its timing makes the clock signal input terminal of energy control module and demultiplexer, multiple sensor control signal output ends of energy control module are made to be separately connected the control terminal of corresponding each building safety monitoring sensor, the input end of analog signal of the signal output end connection analog-digital converter of each building safety monitoring sensor, the signal input part of the digital signal output end connection signal separator of analog-digital converter.The present invention uses a single channel analog-digital converter, and multiple sensors of plugging into carry out signal acquisition by the method for time-sharing multiplex, and the corresponding collection result of synchronism output realizes multi-channel signal acquiring, meets the needs of building safety monitoring field signal acquisition.
Description
Technical field
The present invention relates to signal processing technology fields, adopt in particular to a kind of building safety monitoring information of time-sharing multiplex
Acquisition means and method.
Technical background
Analog-to-digital conversion module in the devices such as classical signal capture card, signal acquiring board, usually possessing the higher time adopts
Sample rate and less acquisition channel number.But in building safety monitoring, same monitoring point generally requires to acquire multiple sensings
Device (such as shock sensor, load transducer, degree of disturbing sensor, strain gauge, temperature sensor and humidity sensor)
Data, frequency acquisition demand are relatively low.If using traditional acquisition device, due to the port number of traditional signal pickup assembly
It is less, the needs of a monitoring point are insufficient for, multiple analog-to-digital conversion modules can only be configured, meanwhile, building safety monitoring
It is lower to frequency acquisition, the performance of classical signal acquisition device can not be played, the waste on hardware resource is caused.
Summary of the invention
Present invention aim to provide the building safety monitoring information collecting device and method of a kind of time-sharing multiplex,
The present invention uses a single channel analog-digital converter, and multiple sensors of plugging into carry out signal acquisition by the method for time-sharing multiplex,
The corresponding collection result of synchronism output realizes multi-channel signal acquiring, meets the need of building safety monitoring field signal acquisition
It wants.
In order to achieve this, the building safety monitoring information collecting device of time-sharing multiplex designed by the present invention, special
Sign is, it include timing occur module, make energy control module, multiple building safety monitoring sensors, analog-digital converter and
Demultiplexer, wherein the clock signal output end connection that module occurs for timing make energy control module and demultiplexer when
Sequential signal input terminal makes multiple sensor control signal output ends of energy control module be separately connected corresponding each building peace
The control terminal of full monitoring sensor, the simulation of the signal output end connection analog-digital converter of each building safety monitoring sensor
Signal input part, the signal input part of the digital signal output end connection signal separator of analog-digital converter.
A kind of building safety monitoring information collecting method of the time-sharing multiplex of above-mentioned apparatus, it includes the following steps:
Step 1: module occurs for the timing according to the quantity and building safety monitoring of building safety monitoring sensor
Clock signal is arranged in time interval between the adjacent double sampling of sensor, and timing occurs module and is transferred to clock signal respectively
Make energy control module and demultiplexer, timing occurs module and is transported to the clock signal of demultiplexer as separation timing
Signal, timing occur module be transported to make the clock signal of energy control module with separate with clock signal timing having the same letter
Breath；The clock signal entirely recycle in time, the minimum sampling interval of not more than each building safety monitoring sensor；
The type that clock signal entirely recycles interior different clock signals is not less than the quantity of building safety monitoring sensor；It is every in circulation
Highest acquisition time needed for the duration of a clock signal is not less than each signal；
Step 2: described that energy control module is made to control each building safety monitoring working sensor according to clock signal；
Each building safety monitoring sensor acquires corresponding building peace in turn under the control for making energy control module
Full monitoring analog signal, and collected each building safety monitoring analog signal is successively passed according to respective sampling time sequence
It is defeated by analog-digital converter and carries out analog-to-digital conversion, analog-digital converter exports building safety monitoring data signal groups, building peace
It include temporal information and each building safety monitoring digital signal in full monitoring data signal groups；
Step 3: the demultiplexer is by the building safety monitoring data signal groups received according to separation timing
Signal separator goes out the collected building safety monitoring signal of each building safety monitoring sensor and exports.
The present invention is realized using only a set of analog-digital converter, be can be completed multiple by design above-mentioned apparatus and method
The time signal of building safety monitoring sensor acquires, the prison such as sampling interval in sampling time needed for meeting building monitoring
In the case where surveying index, hardware cost is saved.
Detailed description of the invention
Fig. 1 is structural block diagram of the invention；
Fig. 2 is the signal schematic representation that four building safety monitoring sensor actual acquisitions arrive in embodiment；
Fig. 3 is that analog-digital converter exports building safety monitoring data signal groups signal graph in embodiment；
Fig. 4 is to separate signal schematic representation in embodiment, the result that acquisition signal is separated according to clock signal；
Fig. 5 is output signal schematic diagram in embodiment, and collected four sensings of the present apparatus are utilized after Signal separator
The signal of device.
Four curves indicate the actual signal that four sensors should acquire in Fig. 2；
Abscissa inside Fig. 2~5 indicates the time, and ordinate indicates the numerical value (reality of physical parameter representated by sensor
Actual value or sensor collection value, unit is different and different according to different physical parameter, is exactly degree Celsius if it is temperature, such as
Fruit is that humidity is exactly percentage, etc.)
4 curves inside Fig. 2 respectively represent the actual value of physical parameter representated by four sensors, such as acquire
Actual temperature value, humidity value, stress, load in this period.
Just there was only a curve inside Fig. 3, represents using after present apparatus acquisition, analog-digital converter exports building safety and supervises
Survey data signal groups.
Fig. 4 added four dotted lines on the basis of Fig. 3, this four dotted lines indicate the processing mode of demultiplexer.
Fig. 5 is exactly inside Fig. 4, and the signal of building safety monitoring data signal groups removes, and has just obtained required 4
Monitoring curve.
Wherein, 1-timing generation module, 2-make energy control module, 3-building safety monitoring sensors, 4-moduluses
Converter, 5-demultiplexers.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
The building safety monitoring information collecting device for a kind of time-sharing multiplex that the present invention designs, as shown, it includes
Timing occurs module 1, makes energy control module 2, multiple building safety monitoring sensors 3, analog-digital converter 4 and demultiplexer
5, wherein the clock signal output end connection that module 1 occurs for timing makes the clock signal of energy control module 2 and demultiplexer 5
Input terminal makes multiple sensor control signal output ends of energy control module 2 be separately connected corresponding each building safety prison
Survey the control terminal of sensor 3, the simulation of the signal output end connection analog-digital converter 4 of each building safety monitoring sensor 3
Signal input part, the signal input part of the digital signal output end connection signal separator 5 of analog-digital converter 4.
In above-mentioned technical proposal, analog-digital converter 4 is full-time, but acts on different prisons in different times
Sensor 3 is surveyed, this is " time-sharing multiplex ".
In above-mentioned technical proposal, each building safety monitoring sensor 3 is shock sensor, load transducer, degree of disturbing
Sensor, strain gauge, temperature sensor or humidity sensor etc..
In above-mentioned technical proposal, the timing occur module 1 be used for according to the quantity of building safety monitoring sensor 3 and
Clock signal is arranged in time interval between the adjacent double sampling of building safety monitoring sensor 3.
In above-mentioned technical proposal, the clock signal entirely recycle in time, not more than each building safety monitoring
The minimum sampling interval of sensor 3；The type that clock signal entirely recycles interior different clock signals is supervised not less than building safety
Survey the quantity of sensor 3；The duration of each clock signal is not less than highest acquisition time needed for each signal in recycling.
Such as have connected 4 sensors, it is desirable that the sampling interval is that every five seconds is primary, and one time 1 second, then generating clock signal is
1,2,3,4,5,1,2,3,4,5 ... circulation, each signal duration are 1 second；
It is described that energy control module 2 is made to control each building safety monitoring biography according to clock signal in above-mentioned technical proposal
Sensor 3 works.According to the value of clock signal, if the value has corresponding sensor, the working sensor, other sensors are not
Work；If the value does not have corresponding sensor, all the sensors do not work.
In above-mentioned technical proposal, each building safety monitoring sensor 3 is adopted in turn under the control for making energy control module 2
Collect corresponding building safety monitoring analog signal, and by collected each building safety monitoring analog signal according to respective
Sampling time sequence be successively transferred to analog-digital converter 4 carry out analog-to-digital conversion, analog-digital converter 4 export building safety monitoring number
Signal group includes temporal information and each building safety monitoring digital signal in the building safety monitoring data signal groups.
In above-mentioned technical proposal, the timing occurs module 1 and is transported to the clock signal of demultiplexer 5 as separation use
Clock signal, timing occur module 1 be transported to make the clock signal of energy control module 2 with separate it is having the same with clock signal
Timing information；
The demultiplexer 5 is for believing the building safety monitoring data signal groups received according to separation timing
It number isolates the collected building safety monitoring signal of each building safety monitoring sensor 3 and exports.
In above-mentioned technical proposal, the demultiplexer 5 is used for the building safety monitoring data signal groups that will be received
Separate with clock signal according to separation and sequence arranges, separate mode is to supervise separation clock signal and building safety
Survey data signal groups temporal information matched, and according to the result of pairing by building safety monitoring data signal groups according to
The timing of separation clock signal separate and sequence chronologically arranges, finally by tactic each building safety
Monitoring digital signal exports respectively.In the data exported according to upper example, analog-to-digital conversion module, the part that interception clock signal is 1 is made
For the acquisition signal of sensor 1；Intercept the part that clock signal is 2, the acquisition signal as sensor 2；Intercept clock signal
Acquisition signal for 3 part, as sensor 3；Intercept the part that clock signal is 4, the acquisition signal as sensor 4；
Give up remaining data.
A kind of building safety monitoring information collecting method of the time-sharing multiplex based on above-mentioned apparatus, which is characterized in that it
Include the following steps:
Step 1: the timing occurs module 1 and is supervised according to the quantity and building safety of building safety monitoring sensor 3
Clock signal is arranged in the time interval surveyed between the adjacent double sampling of sensor 3, and timing occurs module 1 and passes clock signal respectively
Being defeated by makes energy control module 2 and demultiplexer 5, and the clock signal that timing generation module 1 is transported to demultiplexer 5, which is used as, to be divided
From with clock signal, timing occur module 1 be transported to make the clock signal of energy control module 2 with separate with clock signal with phase
Same timing information；The clock signal entirely recycle in time, not more than each building safety monitoring sensor 3 is most
The low sampling interval；Clock signal entirely recycles the type of interior different clock signals not less than building safety monitoring sensor 3
Quantity；The duration of each clock signal is not less than highest acquisition time needed for each signal in recycling；
Step 2: described that energy control module 2 is made to control each work of building safety monitoring sensor 3 according to clock signal；
Each building safety monitoring sensor 3 acquires corresponding building in turn under the control for making energy control module 2
Safety monitoring analog signal, and by collected each building safety monitoring analog signal according to respective sampling time sequence successively
It is transferred to analog-digital converter 4 and carries out analog-to-digital conversion, analog-digital converter 4 exports building safety monitoring data signal groups, the building
Include each building safety monitoring digital signal and each building safety monitoring number in object safety monitoring data signal groups
Clock signal corresponding to signal；
Step 3: the demultiplexer 5 is by the building safety monitoring data signal groups received according to separation timing
Signal separator goes out the collected building safety monitoring signal of each building safety monitoring sensor 3 and exports.
In the step 3 of above-mentioned technical proposal, the building safety monitoring that the demultiplexer 5 is used to receive is digital
Signal group separate with clock signal according to separation and sequence arranges, and separate mode is by separation clock signal and building
The temporal information of safety monitoring data signal groups is matched, and according to the result of pairing by building safety monitoring digital signal
Group is arranged according to the sequence that the timing of separation clock signal separate and chronologically, finally by tactic each building
Object safety monitoring digital signal exports respectively.
The content that this specification is not described in detail belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of building safety monitoring information collecting device of time-sharing multiplex, which is characterized in that it includes that module occurs for timing
(1), make energy control module (2), multiple building safety monitoring sensors (3), analog-digital converter (4) and demultiplexer (5),
Wherein, the clock signal output end connection that module (1) occurs for timing makes the timing of energy control module (2) and demultiplexer (5)
Signal input part makes multiple sensor control signal output ends of energy control module (2) be separately connected corresponding each building
The signal output end of the control terminal of safety monitoring sensor (3), each building safety monitoring sensor (3) connects analog-to-digital conversion
The signal of the input end of analog signal of device (4), the digital signal output end connection signal separator (5) of analog-digital converter (4) is defeated
Enter end.
2. the building safety monitoring information collecting device of time-sharing multiplex according to claim 1, it is characterised in that: each
Building safety monitoring sensor (3) is shock sensor, load transducer, degree of disturbing sensor, strain gauge, temperature sensing
Device or humidity sensor.
3. the building safety monitoring information collecting device of time-sharing multiplex according to claim 1, it is characterised in that: described
Module (1) occurs for timing for the quantity and building safety monitoring sensor (3) according to building safety monitoring sensor (3)
Clock signal is arranged in time interval between adjacent double sampling.
4. the building safety monitoring information collecting device of time-sharing multiplex according to claim 3, it is characterised in that: described
Clock signal entirely recycle in time, the minimum sampling interval of not more than each building safety monitoring sensor (3)；Timing
The type that signal entirely recycles interior different clock signals is not less than the quantity of building safety monitoring sensor (3)；It is every in circulation
Highest acquisition time needed for the duration of a clock signal is not less than each signal.
5. the building safety monitoring information collecting device of time-sharing multiplex according to claim 3, it is characterised in that: described
Make energy control module (2) control each building safety monitoring sensor (3) according to clock signal to work.
6. the building safety monitoring information collecting device of time-sharing multiplex according to claim 5, it is characterised in that: each
Building safety monitoring sensor (3) acquires corresponding building safety monitoring in turn under the control for making energy control module (2)
Analog signal, and collected each building safety monitoring analog signal is combined and is successively transmitted according to respective sampling time sequence
Analog-to-digital conversion is carried out to analog-digital converter (4), analog-digital converter (4) exports building safety monitoring data signal groups, the building
It include temporal information and each building safety monitoring digital signal in object safety monitoring data signal groups.
7. the building safety monitoring information collecting device of time-sharing multiplex according to claim 5, it is characterised in that: described
Timing occurs module (1) and is transported to the clock signal of demultiplexer (5) as separation clock signal, timing generation module
(1) be transported to make the clock signal of energy control module (2) with separate with clock signal timing information having the same；
The building safety monitoring data signal groups that the demultiplexer (5) is used to receive are according to separation clock signal
It isolates the collected building safety monitoring signal of each building safety monitoring sensor (3) and exports.
8. the building safety monitoring information collecting device of time-sharing multiplex according to claim 7, it is characterised in that: described
Demultiplexer (5) with clock signal for separating the building safety monitoring data signal groups received according to separation
And sequence arranges, separate mode is to carry out separation with clock signal and the temporal information of building safety monitoring data signal groups
Pairing, and divided building safety monitoring data signal groups according to the timing of separation clock signal according to the result of pairing
From and chronologically sequence arrangement, finally tactic each building safety monitoring digital signal is exported respectively.
9. a kind of building safety monitoring information collecting method of the time-sharing multiplex based on claim 1 described device, feature
It is, it includes the following steps:
Step 1: the timing occurs module (1) and is supervised according to the quantity and building safety of building safety monitoring sensor (3)
Clock signal is arranged in the time interval surveyed between sensor (3) adjacent double sampling, and module (1) occurs for timing by clock signal point
Supplementary biography, which is defeated by, makes energy control module (2) and demultiplexer (5), timing occur module (1) be transported to demultiplexer (5) when
Sequential signal as separation clock signal, timing occur module (1) be transported to make the clock signal of energy control module (2) with separate
With clock signal timing information having the same；The clock signal entirely recycle in time, not more than each building peace
The minimum sampling interval of full monitoring sensor (3)；Clock signal entirely recycles the type of interior different clock signals not less than building
The quantity of object safety monitoring sensor (3)；The duration of each clock signal is not less than needed for each signal most in recycling
High acquisition time；
Step 2: described that energy control module (2) is made to control each building safety monitoring sensor (3) work according to clock signal；
Each building safety monitoring sensor (3) acquires corresponding building in turn under the control for making energy control module (2)
Safety monitoring analog signal, and by collected each building safety monitoring analog signal according to respective sampling time sequence successively
It is transferred to analog-digital converter (4) and carries out analog-to-digital conversion, analog-digital converter (4) exports building safety monitoring data signal groups, should
It include temporal information and each building safety monitoring digital signal in building safety monitoring data signal groups；
Step 3: the demultiplexer (5) believes the building safety monitoring data signal groups received according to separation timing
It number isolates the collected building safety monitoring signal of each building safety monitoring sensor (3) and exports.
10. the building safety monitoring information collecting method of time-sharing multiplex according to claim 9, it is characterised in that: institute
It states in step 3, the building safety monitoring data signal groups that the demultiplexer (5) is used to receive are according to the separation used time
Sequential signal separate and sequence arranges, and separate mode is by separation clock signal and building safety monitoring data signal groups
Temporal information matched, and building safety monitoring data signal groups are believed according to separation timing according to the result of pairing
Number timing separate and sequence arrangement chronologically, finally by tactic each building safety monitoring digital signal
It exports respectively.
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| CN113740042A (en) * | 2021-07-30 | 2021-12-03 | 西安交通大学 | Device and method for testing vibration contact characteristic of gas turbine blade damper system |
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