CN209486295U - A kind of adjustable microwave sensor of detectivity - Google Patents
A kind of adjustable microwave sensor of detectivity Download PDFInfo
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- CN209486295U CN209486295U CN201821954596.9U CN201821954596U CN209486295U CN 209486295 U CN209486295 U CN 209486295U CN 201821954596 U CN201821954596 U CN 201821954596U CN 209486295 U CN209486295 U CN 209486295U
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Abstract
The utility model discloses a kind of adjustable microwave sensors of detectivity, including microwave transmitting and receiving circuit and microwave mixer detecting circuit, it is characterized in that being additionally provided with microwave module mixing detection working efficiency regulating device, for adjusting the working efficiency of microwave mixer detecting circuit, the realization of detection working efficiency regulating device is mixed by control microwave module and adjusts microwave mixer detecting circuit to the responsiveness and amplitude output signal of various different echo-signals, and then adjusts microwave sensor to the susceptibility of detecting object action response.It realizes to the high sensitive mode of product and the seamless switching of general mode, facilitate user manually or automatically according to its susceptibility of installation environment adjust automatically, it can guarantee the normal work of microwave sensor especially in some extreme abnormal environment, it is adaptable, have a wide range of application.
Description
Technical field
The utility model relates to automation fields, are more particularly to a kind of adjustable microwave sensor of detectivity.
Background technique
It is different as the automatic control that various places illuminate is continued to increase with the promotion efficiency of microwave sensor power supply
Requirement of the application to microwave sensor is also different.Therefore different applications may want the susceptibility that it is detected
The method for asking also different, more conventional susceptibility adjustment be matched according to the amplitude of inductive signal different amplification factor and
Duration adjusts the demand of varying sensitivity to realize.There may be self-oscillation in component environment in practical applications
The problem of, so-called self-oscillation is that input signal is not added in the input terminal of amplifier, and output end still has certain amplitude and frequency
The output signal of rate.Since human body infrared/Doppler signal output is faint, it is therefore desirable to amplify small signal, and amplify
Gain is very big, and small signal change will cause very big signal intensity.(the ratio when the working environment of product changes
Such as: being put into metal environment, outdoor environment, hot environment, low temperature environment), not working for product will be caused to ask with unstability
Topic.In general microwave sensor is all using orientation microwave antenna, it is also desirable to only main lobe, but actually centainly deposit
In minor lobe and secondary lobe, when installation site is to fly metal material, minor lobe and secondary lobe largely all return preferable release,
It reflects typically small therefore smaller on detection influence.But it if is mounted in such as the metal base plate of extreme larger area
When position, since its minor lobe of effect and secondary lobe microwave signal of metal are most of by reflection repeatedly, the microwave letter of reflection
It number will necessarily be added in the microwave signal of microwave sensor detection, cause it in no actual human body movable signal, microwave
For inductor there is also the output of certain signal, the size of its output of different environment is also different, so if be not added differentiation general
The susceptibility of microwave sensor is set as identical, necessarily will cause the problem of certain occasions are judged by accident.And microwave sensor
When leaving the factory and its specific installation environment can not be known in advance, thus the fixed adjustable microwave sensor of detectivity without
Method meets various application scenarios.And current is all generally by adjusting the amplifier after microwave signal detection for susceptibility adjustment
Amplification factor or the processing threshold value of adjustment signal processing circuit realize different susceptibilitys, when certain occasions such as large area gold
Belong to minor lobe and secondary lobe microwave signal major part in plate environment to be likely to result in human mobile signal by reflection repeatedly and be submerged in
It reflects in signal, may cause the problem of cannot achieve normal work.
Utility model content
Technical problem to be solved in the utility model is how to provide one kind to adjust phase according to actual installation environment
The microwave sensor for the susceptibility matched is realized to the high sensitive mode of product and the seamless switching of general mode.
In order to solve the above-mentioned technical problem, the utility model devises a kind of adjustable microwave sensor of detectivity,
Including microwave transmitting and receiving circuit and microwave mixer detecting circuit, it is characterised in that be additionally provided with microwave module mixing detection working efficiency tune
Regulating device is mixed detection working efficiency tune by control microwave module for adjusting the working efficiency of microwave mixer detecting circuit
Regulating device, which is realized, adjusts microwave mixer detecting circuit to the responsiveness and amplitude output signal of various different echo-signals, and then adjusts
Susceptibility of the whole microwave sensor to detecting object action response.
The adjustable microwave sensor of the detectivity, it is characterised in that the microwave module mixing detection work effect
Rate regulating device includes that 1 or more control switch and 1 or more adjustment load, the control switch control the adjustment
It is supported in the microwave mixer detecting circuit and accesses or disconnect, realize that adjusting microwave mixer detecting circuit returns various differences
The responsiveness and amplitude output signal of wave signal, and then realize adjustment microwave sensor to the sensitivity of detecting object action response
Degree.
The adjustable microwave sensor of the detectivity, it is characterised in that the control switch is mechanical switch, specially
With the control terminal of chip, triode or field-effect tube；The adjustment loads for resistance, inductively or capacitively.
The adjustable microwave sensor of the detectivity, it is characterised in that the microwave module mixing detection work effect
Rate regulating device includes 1 adjustment load and 1 control switch, one end and microwave after the adjustment load is connected with control switch
The signal output end of mixing detecting circuit is connected, other end ground connection.
The adjustable microwave sensor of the detectivity, it is characterised in that the adjustment load is resistance, passes through control
The access or disconnection of the signal output end of switch control resistance processed and microwave mixer detecting circuit.And then realize adjustment access
Resistance virtual value.
The adjustable microwave sensor of the detectivity, it is characterised in that the adjustment load is adjustable resistance, is led to
The access or disconnection of the signal output end of control switch control adjustable resistance and microwave mixer detecting circuit are crossed, by adjusting can
Resistance is adjusted to realize effective resistance value of the adjustable resistance of adjustment access.
The adjustable microwave sensor of the detectivity, it is characterised in that the resistance is fixed resistance.
The adjustable microwave sensor of the detectivity, it is characterised in that the adjustable resistance is manual adjustable resistance
Or automatically controlled adjustable resistance.
The adjustable microwave sensor of the detectivity, it is characterised in that the microwave module mixing detection work effect
Rate regulating device is separately provided, is wholely set with microwave mixer detecting circuit or is wholely set with signal amplification module.
The adjustable microwave sensor of the detectivity, it is characterised in that it is additionally provided with abnormality detection module, it is described different
Whether the microwave induced signal that normal detection module is used to detect and judge to be currently installed on environment is more than pre-set amplitude threshold
And duration threshold, when being more than, evaluation current environment is abnormal, and exports current environment abnormal signal or pass through sound or light
Output device prompts user's current environment abnormal.
The adjustable microwave sensor of the detectivity, it is characterised in that microwave is controlled when detecting environmental abnormality
Module is mixed detection working efficiency regulating device, reduces the working efficiency of the microwave mixer detecting circuit, so that abnormal inspection
It surveys module and detects that microwave induced signal is no more than pre-set amplitude threshold and duration threshold.
The adjustable microwave sensor of the detectivity, it is characterised in that the abnormality detection module is sentenced by software
Whether the microwave induced signal that regular inspection measures is more than pre-set amplitude threshold and duration threshold to realize；Microprocessor
The access or disconnection of adjustment load are realized by the control terminal of control switch.
The adjustable microwave sensor of the detectivity, it is characterised in that filter module is additionally provided on microprocessor,
The filter module realizes filter background exception microwave signal.
Implement the utility model has the following beneficial effects: user can be facilitated manually or adjusted automatically automatically according to installation environment
Its whole susceptibility can guarantee the normal work of microwave sensor especially in some extreme abnormal environment, adaptable, answer
It is wide with range.
Detailed description of the invention
Fig. 1 is the microwave sensor system block diagram that detection efficiency adjustment module is separately provided；
Fig. 2 is detection efficiency adjustment module and the microwave sensor system block diagram that Doppler's detection module is wholely set；
It is microwave induced that Fig. 3 is that detection efficiency adjustment module, Doppler's detection module and signal amplification module are wholely set
Device system block diagram；
Fig. 4 is the specific implementation circuit diagram that microwave module mixing detection working efficiency regulating device is separately provided；
Fig. 5 is the specific implementation electricity that microwave module mixing detection working efficiency regulating device is arranged in signal amplification module
Road schematic diagram；
Fig. 6 is that microwave module is mixed detection working efficiency regulating device, signal amplification module is all disposed within Doppler's detection
Specific implementation circuit diagram in module.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1 is the microwave sensor system block diagram that detection efficiency adjustment module is separately provided；Fig. 2 is detection efficiency adjustment mould
The microwave sensor system block diagram that block and Doppler's detection module are wholely set；Fig. 3 is detection efficiency adjustment module, Doppler's inspection
The microwave sensor system block diagram that survey module and signal amplification module are wholely set.Microwave sensor system mainly includes that power supply supplies
Electric module 1, Doppler's detection module 2, detection efficiency adjust module 3, signal amplification module 4, and microprocessor module 5 executes electricity
Road module 6；The microprocessor module 5 mainly includes signal acquisition unit, digital filter unit, software algorithm and journey
Sequence, output controling instructin unit and output dimming commands unit.Execution circuit module 6 mainly include control load switch unit and
Control load dimming unit；Setting execution circuit, photoinduction circuit and/or remote control reception module can also be increased as needed.It is micro-
Wave module is mixed the setting of detection working efficiency regulating device in detection efficiency adjustment module 3.Doppler's detection module 2 includes micro-
Wave transmission circuit and microwave mixer detecting circuit.Manually or automatically control microwave module mixing detection working efficiency adjusts dress
It sets and realizes that realization adjusts microwave mixer detecting circuit to the responsiveness and amplitude output signal of various different echo-signals, and then adjust
Susceptibility of the whole microwave sensor to detecting object action response.
Fig. 4 is the specific implementation circuit diagram that microwave module mixing detection working efficiency regulating device is separately provided；Fig. 5
It is the specific implementation circuit diagram that microwave module mixing detection working efficiency regulating device is arranged in signal amplification module；Figure
6 be the tool that microwave module mixing detection working efficiency regulating device, signal amplification module are all disposed in Doppler's detection module
Body implementing circuit schematic diagram.The principle of increased microwave module mixing detection working efficiency regulating device is by examining in mixing
The output end of wave circuit increases the resistance controlled by control switch, controls specifically by the on-off of control switch mixed
The output end whether ground resistance connected over the ground to realize adjustment mixing detecting circuit that the output end of frequency detecting circuit newly increases
Raw microwave signal, the different and prior art one, which is done, all by adjusting the amplification coefficient of the signal amplification circuit of rear class or to be passed through
The technical solution of different threshold values is arranged in software.Embodiment the simplest is directly by the output in mixing detecting circuit
End increases an adjustment load over the ground, and access is equipped with a control switch, and can control the adjustment to load by control switch is
It disconnects or connects.After microwave sensor is installed, general default control adjustment load is disconnected, and after being installed, is passed through
The microwave signal for detecting the output of Doppler's detection module, when the microwave signal detected is more than pre-set amplitude threshold and is held
Continuous time threshold is that user is reminded by sound or light signal, and current environment is abnormal, needs to adjust mixing detection working efficiency, useful
Family manually controls, and if manual switch, toggle switch control microwave adjust load conduction, reduces microwave mixer detecting circuit output letter
Number amplitude.In order to adapt to different environment, load can be adjusted by setting multiple groups, pass through control various combination adjustment load
It effectively prevents, to realize that adjustment reduces the coefficient of the amplitude of microwave mixer detecting circuit output signal, different adjustment shelves is set.
Or have equipment automatic or the suitable regulation coefficient of remote control realization selection, by selecting different resistance to be connected, so that inspection
The microwave signal measured is no more than pre-set amplitude threshold and duration threshold.Microprocessor module detects output signal
Exception come control mixing detecting circuit working efficiency, form the negative feed back control system of closed loop.Or directly pass through dial-up
Switch or other machinery switch, according to the location determination of arrangement, such as installation environment, there are the metals of large area during installation by user
It is abnormal to determine that current environment exists for face, then toggle switch or other machinery switch is manually controlled, by the susceptibility tune of wave inductor
To low grade, that is, control adjustment load connection.
Power supply module 1, Doppler's detection module 2, detection efficiency adjust module 3, signal amplification module 4, micro process
Device module 5, execution circuit module 6；Power supply AC input is Doppler's detection module 2 through power supply module 1, and signal amplifies mould
Block 3, microprocessor module 5, execution circuit module 6 include switch execution circuit and light modulation execution circuit, provide supply current, when
Microprocessor module 5 detects that the output signal of signal amplification module 3 is abnormal, then the output of microprocessor module 5 control signal control
The S1 device of system connects or disconnects, and wherein S1 device can be mechanical switch, the control terminal of special chip, triode, field effect
Ying Guan, adjustment load may is that resistance, potentiometer, capacitor, inductance etc..When output end the connecing by S1 of mixing detecting circuit
Enter and disconnect the resistance value over the ground for changing output, so that the virtual value of Doppler's rectified signal output is reduced, when mixing detection
It is general mode when the output end of circuit adjusts load by the access of S1.When the output end of mixing detecting circuit passes through S1's
It is high sensitive mode when disconnecting adjustment load.Its helpfulness is the susceptibility reduced to extraneous echo probe object motion, is improved
Anti-interference ability reaches the unstability factor for solving product.And then reach raising product reliability, widen products application range
Purpose.
Disclosed above is only a kind of embodiment of the utility model, cannot limit the utility model certainly with this
Interest field, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and according to this reality
The equivalent variations made by novel claim, still falls within the scope of the utility model.
Claims (9)
1. a kind of adjustable microwave sensor of detectivity, including microwave transmitting and receiving circuit and microwave mixer detecting circuit, special
Sign is to be additionally provided with microwave module mixing detection working efficiency regulating device, for adjusting the work effect of microwave mixer detecting circuit
Rate is mixed detection working efficiency regulating device by control microwave module and realizes adjusting microwave mixer detecting circuit to various differences
The responsiveness and amplitude output signal of echo-signal, and then microwave sensor is adjusted to the susceptibility of detecting object action response.
2. the adjustable microwave sensor of detectivity according to claim 1, it is characterised in that the microwave module is mixed
Frequency detection working efficiency regulating device includes 1 or more control switch and 1 or more adjustment load, the control switch
It controls the adjustment to be supported on access in the microwave mixer detecting circuit or disconnect, realizes and adjust microwave mixer detecting circuit
To the responsiveness and amplitude output signal of various different echo-signals.
3. the adjustable microwave sensor of detectivity according to claim 2, it is characterised in that the control switch is
Mechanical switch, the control terminal of special chip, triode or field-effect tube；The adjustment loads for resistance, inductively or capacitively.
4. the adjustable microwave sensor of detectivity according to claim 3, it is characterised in that the microwave module is mixed
Frequency detection working efficiency regulating device includes 1 adjustment load and 1 control switch, and the adjustment load is connected with control switch
One end is connected with the signal output end of microwave mixer detecting circuit afterwards, other end ground connection.
5. the adjustable microwave sensor of detectivity according to claim 4, it is characterised in that the adjustment, which loads, is
Resistance controls the access or disconnection of the signal output end of resistance and microwave mixer detecting circuit, Jin Ershi by control switch
Now adjust the resistance virtual value of access.
6. the adjustable microwave sensor of detectivity according to claim 4, it is characterised in that the adjustment, which loads, is
Adjustable resistance controls the access of the signal output end of adjustable resistance and microwave mixer detecting circuit by control switch or breaks
It opens, or realizes the effective resistance value for the adjustable resistance that adjustment accesses by adjusting adjustable resistance.
7. the adjustable microwave sensor of detectivity according to claim 5, it is characterised in that the adjustment, which loads, is
Fixed resistance.
8. the adjustable microwave sensor of detectivity according to claim 6, it is characterised in that the adjustable resistance is
Manual adjustable resistance or automatically controlled adjustable resistance.
9. according to claim 1 to the adjustable microwave sensor of detectivity described in 8 any one, it is characterised in that described
Microwave module mixing detection working efficiency regulating device be separately provided, with microwave mixer detecting circuit be wholely set or with letter
Number amplification module is wholely set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821954596.9U CN209486295U (en) | 2018-11-26 | 2018-11-26 | A kind of adjustable microwave sensor of detectivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821954596.9U CN209486295U (en) | 2018-11-26 | 2018-11-26 | A kind of adjustable microwave sensor of detectivity |
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| CN209486295U true CN209486295U (en) | 2019-10-11 |
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| CN201821954596.9U Active CN209486295U (en) | 2018-11-26 | 2018-11-26 | A kind of adjustable microwave sensor of detectivity |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632565A (en) * | 2019-10-25 | 2019-12-31 | 深圳迈睿智能科技有限公司 | Self-excitation self-adaptive microwave detector and self-adaptive method thereof |
| WO2023088451A1 (en) * | 2021-11-19 | 2023-05-25 | 深圳迈睿智能科技有限公司 | Doppler microwave detection device and detection boundary adaptive adjustment method therefor |
-
2018
- 2018-11-26 CN CN201821954596.9U patent/CN209486295U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110632565A (en) * | 2019-10-25 | 2019-12-31 | 深圳迈睿智能科技有限公司 | Self-excitation self-adaptive microwave detector and self-adaptive method thereof |
| WO2023088451A1 (en) * | 2021-11-19 | 2023-05-25 | 深圳迈睿智能科技有限公司 | Doppler microwave detection device and detection boundary adaptive adjustment method therefor |
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