CN105721007A - Portable signal collecting and capturing device - Google Patents
Portable signal collecting and capturing device Download PDFInfo
- Publication number
- CN105721007A CN105721007A CN201610211624.7A CN201610211624A CN105721007A CN 105721007 A CN105721007 A CN 105721007A CN 201610211624 A CN201610211624 A CN 201610211624A CN 105721007 A CN105721007 A CN 105721007A
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- signal
- module
- signal receiving
- receiving module
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/12—Neutralising, balancing, or compensation arrangements
- H04B1/123—Neutralising, balancing, or compensation arrangements using adaptive balancing or compensation means
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
The invention discloses a portable signal collecting and capturing device, and relates to the technical field of signal control. According to the device, a CPU control module is used for controlling a peak value detector, a gain adjusting module and a signal scaling unit. The digital signals of a gain control module are adjusted through the external signals received by a sensor. The effects that the size is automatically adjusted and the distortion is automatically repaired are realized according to differences of external barriers and propagation media. Signal capturing and signal repairing functions are improved.
Description
Technical field
The present invention is that a kind of portable signal collects trap setting, relates to signal and controls technical field.
Background technology
Wireless signal is extensive use in daily life, but the obstruction due to propagation medium, cause that signal quality is uneven, eventually affect user's experience for high-fidelity digital signal, therefore it is badly in need of solving this problem, thus ensureing that signal is reaching a good signal quality after barrier and medium.
Summary of the invention
The technical problem to be solved, it it is the technical deficiency for above-mentioned existence, provide a kind of portable signal and collect trap setting, adopt CPU to control module and control peak detector and gain adjustment module and signal unit for scaling, the outer signals received by sensor regulates the digital signal of gain control, reach the difference according to extraneous barrier and propagation medium, be automatically adjusted size and repair the effect of distortion, improve signal capture and the function of signal reparation.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: include sensor assembly, automatic control module, DC level move circuit, digital interpolation filter, geometric ratio adjustor, drive circuit and signal receiving module, and sensor module circuitry is connected to automatic control module；Automatic control module is according to digital signal automatic signal detection height and revises size；Revised digital signal is moved circuit by DC level and is delivered to digital interpolation filter；Noise is filtered by digital interpolation filter according to digital signal；Digital signal after filtration is delivered to drive circuit by geometric ratio adjustor；Drive circuit Electricity Federation signal receiving module.
Optimizing the technical program further, described automatic control module includes peak detector, gain adjustment module, CPU control module and signal unit for scaling；Whether digital signal is normal by peak detector monitoring digital signal, repairs distorted digital signal by gain adjustment module；CPU controls module and peak detector and gain adjustment module is automatically controlled；Digital signal is delivered to DC level by signal unit for scaling and moves circuit by the digital signal after reparation.
Optimizing the technical program further, it is PT2313L processor that described CPU controls module, and gain adjustment module (22) adopts floating point DSP for processing core, completes Gain Automatic control by simple agc algorithm；Adopting DC level to move circuit (3) for AC coupled form A/D sampled voltage scope is 0～2.5V, make to be sampled signal to mate with A/D and avoid clipping distortion, input signal proportion is zoomed in or out, and center voltage is moved near 1.25V, increase digital signal repair function.
Compared with prior art, the invention have the advantages that 1, to control module be PT2313L processor to CPU, input signal is detected, the i.e. feedforward, detects output signal, so stronger at defeated people's Shi Ruo signal, output can be limited, avoid affecting reception, adopt floating point DSP for processing core, complete Gain Automatic control by simple agc algorithm；2, adopt DC level to move circuit general outut device digital signal to be differed and for AC coupled form, and the A/D sampled voltage scope of DSP is 0～2.5V, mate with A/D avoid clipping distortion to make to be sampled signal, need input signal proportion is amplified (or reducing), and center voltage is moved near 1.25V, add digital signal repair function.
Accompanying drawing explanation
Fig. 1 is the system block diagram that a kind of portable signal collects trap setting.
Fig. 2 is the circuit theory diagrams that a kind of portable signal collects trap setting.
Fig. 3 is the circuit theory diagrams that DC level moves circuit.
Fig. 4 is the system block diagram of automatic control module.
In figure, 1, sensor assembly；2, automatic control module；3, DC level moves circuit；4, digital interpolation filter；5, geometric ratio adjustor；6, drive circuit；7, signal receiving module；21, peak detector；22, gain adjustment module；23, CPU controls module；24, signal unit for scaling.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with detailed description of the invention and with reference to accompanying drawing, the present invention is described in more detail.It should be understood that these descriptions are illustrative of, and it is not intended to limit the scope of the present invention.Additionally, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring idea of the invention.
Detailed description of the invention: as Figure 1-4, moving circuit 3, digital interpolation filter 4, geometric ratio adjustor 5, drive circuit 6 and signal receiving module 7 including sensor assembly 1, automatic control module 2, DC level, sensor assembly 1 circuit is connected to automatic control module 2；Automatic control module 2 is according to digital signal automatic signal detection height and revises size；Revised digital signal is moved circuit 3 by DC level and is delivered to digital interpolation filter 4；Noise is filtered by digital interpolation filter 4 according to digital signal；Digital signal after filtration is delivered to drive circuit 6 by geometric ratio adjustor 5；Drive circuit 6 Electricity Federation signal receiving module 7；Automatic control module 2 includes peak detector 21, gain adjustment module 22, CPU control module 23 and signal unit for scaling 24；Digital signal, by whether normally peak detector 21 monitors digital signal, repairs distorted digital signal by gain adjustment module 22；CPU controls module 23 and peak detector 21 and gain adjustment module 22 is automatically controlled；Digital signal is delivered to DC level by signal unit for scaling 24 and moves circuit 3 by the digital signal after reparation；It is PT2313L processor that CPU controls module 23；Input signal is detected, i.e. the feedforward, output signal is detected, if the signal of input is relatively strong, output can be limited, it is to avoid affects reception, gain adjustment module 22 adopts floating point DSP to be process core, completes Gain Automatic control by simple agc algorithm；Adopt DC level to move circuit 3 general outut device digital signal to be differed and for AC coupled form, and the A/D sampled voltage scope of DSP is 0～2.5V, mate with A/D avoid clipping distortion to make to be sampled signal, need input signal proportion is amplified (or reducing), and center voltage is moved near 1.25V, increase digital signal repair function.
It is PT2313L processor that signal input CPU controls module 23, input signal is detected, the i.e. feedforward, output signal is not detected, so relatively big in defeated people's Shi Ruo gain, output can be limited, and affects reception, adopt floating point DSP for processing core, complete Gain Automatic control by simple agc algorithm；Signal output adopts DC level to move circuit 3 to differ for general outut device digital signal and for AC coupled form, and the A/D sampled voltage scope of DSP is 0～2.5V, mate with A/D avoid clipping distortion to make to be sampled signal, need input signal proportion is amplified (or reducing), and center voltage is moved near 1.25V, add digital signal repair function.
Detailed description of the invention two: present embodiment and embodiment one are different in that, this device can adopt contact panel to be operated, panel both sides show the yield value of current demand signal respectively, shown by three-color LED light, 40db is arrived in green expression 0, orange expression, more than 40db to 70db, adopts redness to represent more than 70db, and each color all uses mode from the superficial to the deep to express.During use, first sensor acquisition parameter is set, by the rejection ratio of signal and clutter can be arranged by contact panel, the initial rejection ratio of signal Yu clutter is set in suitable scope.Can the embedded WebServer of contact panel by the network of 10/100/1000, the online upgrading of product can be realized and revise IP address and MAC Address flexibly, signal intensity before and after treatment can be supervised, thus facilitating client intuitively the signal before and after processing to be contrasted, the present invention also has power-down direct connection function simultaneously, supports snmp protocol.
As shown in Figure 3, DC level is moved circuit and is adopted the AGC algorithm of signal processing, in conventional AGC algorithm, multiplication and division computing is bigger to taking of cpu resource, here the AGC method comparison proposed is simple and practical, its flow process is as shown in Figure 3, storage of array digital signal reaches thresholding and compares requirement, enter peakedness ratio relatively flow process, input signal digital signal according to storage, the algorithm adopting bubble sort finds out maximum amplitude, judge whether input has signal, if it is determined that not having signal to input, then gain does not adjust, prevent from increasing gain owing to output signal is too little always, clutter is excessive, or once signal occurs, due to gain excessive and occur the short time output signal too big；Input has signal, then outfan is detected, and calls bubble sort program equally and finds out maximum amplitude, and as found, output signal magnitude exceedes setting thresholding, then reduce gain, otherwise then increase gain.Reduce gain time, stepping will more greatly, and increase gain time stepping want less, so when Gain tuning export signal make on Consumer's Experience more smooth.
It should be appreciated that the above-mentioned detailed description of the invention of the present invention is used only for exemplary illustration or explains principles of the invention, and it is not construed as limiting the invention.Therefore, any amendment of making when without departing from the spirit and scope of the present invention, equivalent replacement, improvement etc., should be included within protection scope of the present invention.Additionally, claims of the present invention be intended to fall in the equivalents on scope and border or this scope and border whole change and modifications example.
Claims (3)
1. a portable signal collects trap setting, it is characterized in that: include sensor assembly (1), automatic control module (2), DC level move circuit (3), digital interpolation filter (4), geometric ratio adjustor (5), drive circuit (6) and signal receiving module (7), and sensor assembly (1) circuit is connected to automatic control module (2)；Automatic control module (2) is according to signal receiving module data signal automatic detection signal receiver module height and revises signal receiving module size；Revised signal receiving module data are moved circuit (3) by DC level and are delivered to digital interpolation filter (4)；Noise is filtered by digital interpolation filter (4) according to signal receiving module data；Signal receiving module data after filtration are delivered to drive circuit (6) by geometric ratio adjustor (5)；Drive circuit (6) Electricity Federation signal receiving module (7).
2. a kind of portable signal according to claim 1 collects trap setting, it is characterised in that: automatic control module (2) includes peak detector (21), gain adjustment module (22), CPU control module (23) and signal unit for scaling (24)；Whether signal receiving module data are normal by peak detector (21) monitor signal receiver module data, carry out repair signal receiver module distortion data by gain adjustment module (22)；CPU controls module (23) and peak detector (21) and gain adjustment module (22) is automatically controlled；Signal receiving module data are delivered to DC level by signal unit for scaling (24) and move circuit (3) by the signal receiving module data after reparation.
3. a kind of portable signal according to claim 2 collects trap setting, it is characterized in that: it is PT2313L signal receiving module processor that CPU controls module (23), gain adjustment module (22) adopts floating point DSP for processing core, completes Gain Automatic control by simple agc algorithm；Adopting DC level to move circuit (3) for AC coupled form A/D sampled voltage scope is 0～2.5V, make to be sampled signal to mate with A/D and avoid clipping distortion, input signal proportion is zoomed in or out, and center voltage is moved near 1.25V, increase signal receiving module data repair function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610211624.7A CN105721007A (en) | 2016-04-06 | 2016-04-06 | Portable signal collecting and capturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610211624.7A CN105721007A (en) | 2016-04-06 | 2016-04-06 | Portable signal collecting and capturing device |
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| Publication Number | Publication Date |
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| CN105721007A true CN105721007A (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610211624.7A Pending CN105721007A (en) | 2016-04-06 | 2016-04-06 | Portable signal collecting and capturing device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071957A1 (en) * | 2000-03-24 | 2001-09-27 | Matsushita Electric Industrial Co.,Ltd. | Receiving apparatus and gain control method |
| CN104242968A (en) * | 2014-08-25 | 2014-12-24 | 余凤莲 | Self-adaptive wireless receiver based on zigbee |
| CN204465475U (en) * | 2015-04-30 | 2015-07-08 | 广州市天邦计算机科技有限公司 | A kind of audio gain control device of environment self-adaption |
-
2016
- 2016-04-06 CN CN201610211624.7A patent/CN105721007A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001071957A1 (en) * | 2000-03-24 | 2001-09-27 | Matsushita Electric Industrial Co.,Ltd. | Receiving apparatus and gain control method |
| CN104242968A (en) * | 2014-08-25 | 2014-12-24 | 余凤莲 | Self-adaptive wireless receiver based on zigbee |
| CN204465475U (en) * | 2015-04-30 | 2015-07-08 | 广州市天邦计算机科技有限公司 | A kind of audio gain control device of environment self-adaption |
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Application publication date: 20160629 |