CN102360073A - Circuit functional module of signal calibration instrument for determining life detection radar performance - Google Patents
Circuit functional module of signal calibration instrument for determining life detection radar performance Download PDFInfo
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- CN102360073A CN102360073A CN201110264792XA CN201110264792A CN102360073A CN 102360073 A CN102360073 A CN 102360073A CN 201110264792X A CN201110264792X A CN 201110264792XA CN 201110264792 A CN201110264792 A CN 201110264792A CN 102360073 A CN102360073 A CN 102360073A
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Abstract
The invention, which belongs to the radar detection technology field, provides a circuit functional module of a signal calibration instrument for determining a life detection radar performance. According to the invention, a single-chip microcomputer controls a signal generation circuit to generate a respiration signal, a heartbeat signal and a near direct current sine wave signal; an oscillation resistance of a frequency adjusting unit is adjusted through the signal generation circuit so as to adjust a frequency of a signal; and an amplitude adjusting unit is utilized to adjust an amplitude of an output signal of the signal generation circuit. Besides, after a signal that is output by the signal generation circuit is amplified through a drive circuit, the amplified signal is transmitted to a signal input terminal of an electromagnetic/ mechanical oscillation apparatus; a displacement sensor that is installed on the electromagnetic/ mechanical oscillation apparatus is utilized to obtain a signal that is oscillated by the electromagnetic/ mechanical oscillation apparatus; and then an analog-to-digital converter is used to transmit an obtained digital signal to the single-chip microcomputer; and displacement, a frequency and a waveform type can be displayed through a displacement display unit, a frequency display unit, and a waveform type display unit in a signal processing module. Moreover, the circuit functional module provided in the invention has advantages of simple structure and reliable performance.
Description
Technical field
The invention belongs to the The radar exploration technique field, relate in particular to a kind of signal scaling instrument circuit functional module of measuring the life detection radar performance.
Background technology
Radar type noncontact life detection technology is to survey media with the electromagnetic wave, adopts the radar mode, through non-contact detecting or detecting breathing, the caused body surface fine motion of heartbeat, and then extracts required vital sign parameter.But the detectivity of quantitative measurement radar life-detection instrument how; The detection performance of radar life detection system is carried out this research field or the blank out of objective evaluation, and prior art can't provide supporting circuit function module for the signal scaling appearance of measuring the radar life-detection instrument detectivity.
Summary of the invention
The invention provides a kind of signal scaling instrument circuit functional module of measuring the life detection radar performance, be intended to solve the problem that prior art can't provide supporting circuit function module for the signal scaling appearance of measuring the radar life-detection instrument detectivity.
The object of the present invention is to provide a kind of signal scaling instrument circuit functional module of measuring the life detection radar performance, this circuit function module comprises:
Detect the straight-line displacement amount of electromagnetism/mechanical vibrator, be used for converting straight-line displacement amount to analog electrical signal, and the displacement transducer that said analog electrical signal is exported;
Be connected with said displacement transducer, be used to receive the analog electrical signal of said displacement transducer output, convert said analog electrical signal to digital signal, and the analog to digital converter that said digital signal is exported;
Be connected with said analog to digital converter, be used to receive the digital signal of said analog to digital converter output, said digital signal is handled, and sent the signal processing module of control signal;
Be connected with said signal processing module, be used to receive the control signal of said signal processing module output, and the signal generating circuit of output signal;
Be connected with said signal generating circuit, be used to receive the signal of said signal generating circuit output, and the driving circuit of output drive signal.
The present invention converts the straight-line displacement amount of electromagnetism/mechanical vibrator into electric signal through displacement transducer, and analog to digital converter is a digital signal with the electrical signal conversion that receives, and is sent to signal processing module; Frequency, type of waveform to digital signal show that signal processing module sends control signal after received digital signal is handled, and signal generating circuit receives control signal; And the regulating action through frequency adjustment unit, amplitude regulon; The signal that sends the certain frequency that tallies with the actual situation, amplitude is to driving circuit, and the drive signal after driving circuit output is amplified is simple in structure; Dependable performance, accommodation is wider.
Description of drawings
Fig. 1 is the structured flowchart of the signal scaling instrument circuit functional module of the mensuration life detection radar performance that provides of the embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further specified below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in the qualification invention.
Fig. 1 shows the structure of the signal scaling instrument circuit functional module of the mensuration life detection radar performance that the embodiment of the invention provides.For the ease of explanation, only show the part relevant with the present invention.
This circuit function module comprises:
Detect the straight-line displacement amount of electromagnetism/mechanical vibrator, be used for converting straight-line displacement amount to analog electrical signal, and the displacement transducer 11 that analog electrical signal is exported;
Be connected with displacement transducer 11, be used to receive the analog electrical signal of displacement transducer 11 outputs, convert analog electrical signal to digital signal, and the analog to digital converter 12 that digital signal is exported;
Be connected with analog to digital converter 12, be used to receive the digital signal of analog to digital converter 12 outputs, digital signal is handled, and sent the signal processing module 13 of control signal;
Be connected with signal processing module 13, be used to receive the control signal of signal processing module 13 outputs, and the signal generating circuit 14 of output signal;
Be connected with signal generating circuit 14, be used to receive the signal of signal generating circuit 14 outputs, and the driving circuit 15 of output drive signal.
In embodiments of the present invention, said signal processing module 13 comprises:
Be connected with analog to digital converter 12 and signal generating circuit 14, be used to receive the digital signal of digital to analog converter output, and the single-chip microcomputer 131 of the control signal that received of output signal generating circuit 14;
Be connected with single-chip microcomputer 131, be used for the type of waveform display unit 132 that the type of waveform to single-chip microcomputer 131 receiving digital signals shows;
Be connected with single-chip microcomputer 131, be used for the waveform trigger element 133 that the waveform to single-chip microcomputer 131 receiving digital signals triggers;
Be connected with single-chip microcomputer 131, be used for the frequency display unit 134 that the frequency to single-chip microcomputer 131 receiving digital signals detects, shows;
Be connected with single-chip microcomputer 131, be used for the displacement display unit 135 that the displacement to displacement transducer 11 detected electromagnetism/mechanical vibrators shows.
In embodiments of the present invention, signal generating circuit 14 also is provided with:
Be used for control signal, the frequency adjustment unit 141 of conditioning signal generation circuit 14 output signal frequencies according to the single-chip microcomputer that receives 131 outputs;
Be used for control signal, the amplitude regulon 142 of conditioning signal generation circuit 14 output signal amplitudes according to the single-chip microcomputer that receives 131 outputs.
In embodiments of the present invention, displacement transducer 11 is installed on electromagnetism/mechanical vibrator.
In embodiments of the present invention, driving circuit 15 also is connected with the input end of electromagnetism/mechanical vibrator.
What in embodiments of the present invention, analog to digital converter 12 adopted is that model is the analog to digital converter 12 of ADC0809.
Below in conjunction with accompanying drawing and specific embodiment application principle of the present invention is further described.
As shown in Figure 1; Single-chip microcomputer 131 control signal generation circuit 14 in the signal processing module 13 produce to be breathed and heartbeat signal; Signal generator uses the chip of model as AP8821; Through the oscillation resistance in its regulating frequency regulon 141, scalable signal generating circuit 14 output signal frequency are through the amplitude of amplitude regulon 142 scalable signal generating circuits 14 output signals; After the signal of signal generating circuit 14 outputs amplifies through driving circuit 15; Being sent to the signal input part of electromagnetism/mechanical vibrator, utilizing the displacement transducer of installing on electromagnetism/mechanical vibrator 11 can obtain the signal of electromagnetism/mechanical vibrator vibration, is the analog to digital converter 12 of ADC0809 again through model; Give single-chip microcomputer 131 with the digital data transmission that is converted to, can show displacement, frequency and type of waveform through the displacement display unit 135 in the signal processing module 13, frequency display unit 134, type of waveform display unit 132.
The embodiment of the invention converts the straight-line displacement amount of electromagnetism/mechanical vibrator into electric signal through displacement transducer 11; Analog to digital converter 12 is a digital signal with the electrical signal conversion that receives, and is sent to signal processing module 13, and frequency, the type of waveform of digital signal shown; After handling, 13 pairs of received digital signals of signal processing module send control signal; Signal generating circuit 14 receives control signal, and passes through the regulating action of frequency adjustment unit 141, amplitude regulon 142, sends the certain frequency that tallies with the actual situation, signal to the driving circuit 15 of amplitude; Drive signal after driving circuit 15 outputs are amplified; Simple in structure, dependable performance, accommodation is wider.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. signal scaling instrument circuit functional module of measuring the life detection radar performance is characterized in that this circuit function module comprises:
Detect the straight-line displacement amount of electromagnetism/mechanical vibrator, be used for converting straight-line displacement amount to analog electrical signal, and the displacement transducer that said analog electrical signal is exported;
Be connected with said displacement transducer, be used to receive the analog electrical signal of said displacement transducer output, convert said analog electrical signal to digital signal, and the analog to digital converter that said digital signal is exported;
Be connected with said analog to digital converter, be used to receive the digital signal of said analog to digital converter output, said digital signal is handled, and sent the signal processing module of control signal;
Be connected with said signal processing module, be used to receive the control signal of said signal processing module output, and the signal generating circuit of output signal;
Be connected with said signal generating circuit, be used to receive the signal of said signal generating circuit output, and the driving circuit of output drive signal.
2. circuit function module as claimed in claim 1 is characterized in that, said signal processing module comprises:
Be connected with said analog to digital converter and said signal generating circuit, be used to receive the digital signal of said digital to analog converter output, and export the single-chip microcomputer of the control signal that said signal generating circuit receives;
Be connected with said single-chip microcomputer, be used for the type of waveform display unit that the type of waveform to said single-chip microcomputer receiving digital signals shows;
Be connected with said single-chip microcomputer, be used for the waveform trigger element that the waveform to said single-chip microcomputer receiving digital signals triggers;
Be connected with said single-chip microcomputer, be used for the frequency display unit that the frequency to said single-chip microcomputer receiving digital signals detects, shows;
Be connected with said single-chip microcomputer, be used for the displacement display unit that the displacement to the detected electromagnetism/mechanical vibrator of said displacement transducer shows.
3. circuit function module as claimed in claim 1 is characterized in that, said signal generating circuit also is provided with:
Be used for control signal, regulate the frequency adjustment unit of said signal generating circuit output signal frequency according to the said single-chip microcomputer output that receives;
Be used for control signal, regulate the amplitude regulon of said signal generating circuit output signal amplitude according to the said single-chip microcomputer output that receives.
4. circuit function module as claimed in claim 1 is characterized in that said displacement transducer is installed on electromagnetism/mechanical vibrator.
5. circuit function module as claimed in claim 1 is characterized in that, said driving circuit also is connected with the input end of electromagnetism/mechanical vibrator.
6. circuit function module as claimed in claim 1 is characterized in that, what said analog to digital converter adopted is that model is the analog to digital converter of ADC0809.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110264792XA CN102360073A (en) | 2011-09-08 | 2011-09-08 | Circuit functional module of signal calibration instrument for determining life detection radar performance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110264792XA CN102360073A (en) | 2011-09-08 | 2011-09-08 | Circuit functional module of signal calibration instrument for determining life detection radar performance |
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| CN102360073A true CN102360073A (en) | 2012-02-22 |
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| CN201110264792XA Pending CN102360073A (en) | 2011-09-08 | 2011-09-08 | Circuit functional module of signal calibration instrument for determining life detection radar performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103110422A (en) * | 2012-12-18 | 2013-05-22 | 中国人民解放军第四军医大学 | Breath and heartbeat real-time separating method based on biological radar detection |
| CN103823207A (en) * | 2012-11-16 | 2014-05-28 | 哈尔滨飞机工业集团有限责任公司 | Helicopter altimeter outfield signal simulator |
-
2011
- 2011-09-08 CN CN201110264792XA patent/CN102360073A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 吕昊: "模拟人体系统及超宽谱生物雷达系统的设计研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823207A (en) * | 2012-11-16 | 2014-05-28 | 哈尔滨飞机工业集团有限责任公司 | Helicopter altimeter outfield signal simulator |
| CN103823207B (en) * | 2012-11-16 | 2016-08-24 | 哈尔滨飞机工业集团有限责任公司 | Helicopter altimeter outfield signal simulator |
| CN103110422A (en) * | 2012-12-18 | 2013-05-22 | 中国人民解放军第四军医大学 | Breath and heartbeat real-time separating method based on biological radar detection |
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Application publication date: 20120222 |