CN206378590U - A kind of object monitoring device - Google Patents
A kind of object monitoring device Download PDFInfo
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- CN206378590U CN206378590U CN201720025823.9U CN201720025823U CN206378590U CN 206378590 U CN206378590 U CN 206378590U CN 201720025823 U CN201720025823 U CN 201720025823U CN 206378590 U CN206378590 U CN 206378590U
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- radar sensor
- target object
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- signal
- sensor
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Abstract
The utility model embodiment discloses a kind of object monitoring device.Including the first radar sensor, the second radar sensor and MCU；Wherein, first radar sensor and second radar sensor are the radar sensor of continuous wave Doppler；First radar sensor and second radar sensor are connected with the MCU respectively.Using the utility model, it is possible to reduce to the operand of the monitoring of target object, lift the monitoring efficiency to target object, effectively reduce monitoring blind area, it is ensured that the accuracy monitored to target object.
Description
Technical field
The utility model is related to electronic technology field, more particularly to a kind of object monitoring device.
Background technology
As electronic technology is constantly developed and developed, radar sensor has been widely used in the prison to various objects
Survey, for example：Vehicle speed measurement, sign measurement etc..Passed more than the existing measurement to stationary body using the radar for adding modulation system
Sensor, for example：Modulation system of CW with frequency modulation (Frequency Modulated Continuous Wave, FMCW) etc., leads to
The position of the mode monitoring objective object of ranging is crossed, but using operand of the FMCW radar sensor to the monitoring of target object
It is larger, the monitoring efficiency to target object is reduced, while the monitoring blind area that also presence can not be eliminated, have impact on to target object
The accuracy of monitoring.
Utility model content
The utility model embodiment provides a kind of object monitoring device, it is possible to reduce the computing to the monitoring of target object
Amount, lifts the monitoring efficiency to target object, is prevented effectively from monitoring blind area, it is ensured that the accuracy monitored to target object.
The utility model embodiment provides a kind of object monitoring device, it may include：First radar sensor, the second radar
Sensor and micro-control unit (Microcontroller Unit, MCU)；Wherein, first radar sensor and described
Two radar sensors are the radar sensor of continuous wave Doppler；
First radar sensor and second radar sensor are connected with the MCU respectively；
The first radar beam covering of first radar sensor includes the monitoring range including target object, and described the
One radar sensor sends the first radar beam to the monitoring range, and the second radar beam of second radar sensor covers
Lid includes the monitoring range including target object, and second radar sensor sends the second radar wave to the monitoring range
Beam, the echo-signal that second radar beam reflects the target object of generation through the target object is transmitted to described the
One radar sensor, the motor message that second radar beam reflects the target object of generation through the target object is passed
Second radar sensor is transported to, the echo-signal is transmitted to the MCU, the motion through first radar sensor
Signal is transmitted to the MCU through second radar sensor, and the echo-signal and the motor message are respectively through the MCU
Carry out the exercise data that signal transacting generates the target object.
In the utility model embodiment, by using the radar sensor of two continuous wave Dopplers in monitored area
Target object be monitored, can meet the monitoring of stationary body and the monitoring of dynamic object simultaneously, simplify to target object
Monitoring operand, improve the monitoring efficiency to target object, effectively avoid monitoring blind area, it is ensured that to object
The accuracy of body monitoring.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation for object detecting apparatus that the utility model embodiment is provided.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
The object monitoring device that the utility model embodiment is provided, which can apply to parking position monitoring etc., needs detection
The scene of stationary body and dynamic object.The object monitoring device provided below in conjunction with accompanying drawing 1 the utility model embodiment
Describe in detail.
Fig. 1 is referred to, a kind of structural representation of object monitoring device is provided for the utility model embodiment.Such as Fig. 1
Shown, the object monitoring device 1 of the utility model embodiment can include：First radar sensor 11, the second radar are passed
Sensor 12, MCU13, the first wave filter 14, the second wave filter 15, geomagnetic sensor 16 and data output interface 17.
The radar sensor 12 of first radar sensor 11 and second is connected with the MCU13 respectively, and described first
Wave filter 14 is connected with first radar sensor 11 and the MCU13 respectively, second wave filter 15 respectively with institute
State the second radar sensor 12 with the MCU13 to be connected, the geomagnetic sensor 16 is connected with the MCU13, the number
It is connected according to output interface 17 with the MCU13.It is understood that above-mentioned annexation can be electrical connection.
The first radar beam covering of first radar sensor 11 includes the monitoring range including target object, described
First radar sensor 11 sends the first radar beam, the second radar of second radar sensor 12 to the monitoring range
Wave cover includes the monitoring range including target object, and second radar sensor 12 sends second to the monitoring range
Radar beam, second radar beam through the target object reflect generation the target object echo-signal transmit to
First radar sensor 11, second radar beam reflects the fortune of the target object of generation through the target object
Dynamic signal is transmitted to second radar sensor 12, and the echo-signal is transmitted to described through first radar sensor 11
MCU13, the motor message is transmitted to the MCU13, the echo-signal and the fortune through second radar sensor 12
Dynamic signal carries out the exercise data that signal transacting generates the target object through the MCU13 respectively.
It should be noted that because the first radar beam reflects the of the target object of generation through the target object
One echo-signal can be transmitted to first radar sensor 11, and first radar beam is launched through the target object
First motor message of the target object of generation can be transmitted to second radar sensor 12, in order to avoid first time
Ripple signal and the first motor message are impacted to effective echo-signal and motor message, therefore are filtered using the first wave filter 14
First motor message is filtered out except the first echo signal, and using the second wave filter 15.
Further, first time of the target object of first radar beam through target object reflection generation
Ripple signal is transmitted to first radar sensor 11, and second radar beam is through described in target object reflection generation
The second echo signal of target object is transmitted to first radar sensor 11, the first echo signal and described second time
Ripple signal is transmitted to first wave filter 14 through first radar sensor 11 respectively, the first echo signal and described
Second echo signal retains the second echo signal as the target object after the filtering process of the first wave filter 14
Echo-signal, further, the first echo signal and the second echo signal are in first radar sensor 11
In be mixed respectively with first radar beam, first wave filter 14 can filter out the first echo signal and institute
The mixed frequency signal of the first radar beam is stated, the mixed frequency signal of the second echo signal and first radar beam is protected
Give over to as the echo-signal of the target object；
The first motor message that first radar beam reflects the target object of generation through the target object is passed
Second radar sensor 12 is transported to, second radar beam reflects the target object of generation through the target object
The second motor message transmit to second radar sensor 12, first motor message and second motor message point
Do not transmitted through second radar sensor 12 to second wave filter 15, first motor message and second motion
Signal retains second motor message after the filtering process of the second wave filter 15 to be believed as the motion of the target object
Number, further, first motor message and second motor message in second radar sensor 12 with it is described
Second radar beam is mixed respectively, and second wave filter 15 can filter out first motor message and second thunder
Up to the mixed frequency signal of wave beam, the mixed frequency signal of second motor message and second radar beam is retained as institute
State the motor message of target object.
It is understood that above-mentioned first echo signal and the first motor message are represented as the target object reflection institute
The identical signal produced by the first radar beam is stated, above-mentioned second echo signal and the second motor message are represented as the mesh
The identical signal that object is reflected produced by second radar beam is marked, is made a distinction using echo-signal and motor message,
Only for illustrating that it is transferred to the first radar sensor 11 and the second radar sensor 12 respectively.First radar sensor
11 and second radar sensor 12 can be continuous wave Doppler radar sensor, it is many by using two continuous waves
The radar sensor of general Le, can replace existing FMCW radar sensor, simplify the operand of the monitoring to target object, together
When can effectively reduce monitoring blind area.The filtering bandwidth of first wave filter 14 specifically can by first radar beam and
The difference frequency value of the tranmitting frequency of second radar beam determines that the filtering bandwidth of second wave filter 15 can be by the monitoring mesh
Target translational speed determines that first wave filter 14 and second wave filter 15 can be that bandpass filter or high pass are filtered
Ripple device.The tranmitting frequency of first radar beam is preferably 24.1GHz, and the tranmitting frequency of second radar sensor is preferred
For 24.12GHz, for example：The tranmitting frequency of first radar beam of first radar sensor 11 and the second radar sensor
When the tranmitting frequency of 12 the second radar beam is at intervals of 20MHz, then according to the speed of parking, the cake resistancet of the first wave filter 14
Width can be 5MHz-50MHz, and the filtering bandwidth of the second wave filter 15 can be 10Hz-6KHz etc..
When the monitoring objective is not present in the monitored area, first wave filter 14 and second wave filter
Equal no signal output in 15, thus may determine that the monitoring objective is not present in the monitored area；
When the monitoring objective remains static, because first echo signal and the first radar beam are in mixing phase
Mutually offset, the mixed frequency signal of the second echo signal and first radar beam is only existed after filtering, and then may determine that
There is monitoring objective in the currently monitored region, and due to first motor message and the second radar beam after mixing it is described
Second wave filter 15 is filtered out, and second motor message and second radar beam are cancelled out each other in mixing, thus described
Second wave filter 15 has no signal output, thus may determine that the monitoring objective remains static；
When the monitoring objective is kept in motion, the quilt after mixing due to first echo signal and the first radar beam
First wave filter 14 is filtered out, and the mixing letter of the second echo signal and first radar beam is only existed after filtering
Number, and then may determine that there is monitoring objective in the currently monitored region, and due to first motor message and the second radar wave
Beam is filtered out after mixing by second wave filter 15, and due to the monitoring objective produced in motion process described
The signal frequency of two motor messages and the signal frequency of second radar beam are differed, and second fortune is only existed after filtering
The mixed frequency signal of dynamic signal and second radar beam, thus may determine that the monitoring objective is kept in motion.
The geomagnetic sensor 16 monitors the earth induction signal that changes of magnetic field in the monitored area is generated, describedly
Magnetic strength induction signal is transmitted to the MCU13 through the geomagnetic sensor 16, and the earth induction signal is believed through the MCU13
Number conversion generation enabling signal, the enabling signal is transmitted separately to first radar sensor 11 and the through the MCU13
Two radar sensors 12, for starting first radar sensor 11 and second radar sensor 12 to the monitoring section
Launch the first radar beam and the second radar beam in domain.Become by adding the magnetic field in the induction monitoring region of geomagnetic sensor 16
Change, radar sensor can be restarted when there is changes of magnetic field monitored area is monitored, reduce radar sensor
Power consumption.Further, the enabling signal is preferably pulse control signal, for example：Pulse width modulation (Pulse Width
Modulation, PWM) waveform etc., the pulse control signal can control the switch in first radar sensor 11 with
And the switch in second radar sensor 12, for controlling first radar sensor 11 and second radar to sense
Device 12 is started working or is stopped, and reduce further the power consumption of radar sensor.
The data output interface 17 is also associated with external equipment, and the exercise data is transmitted to described through the MCU13
Data output interface 17, and exported through the data output interface 17 to the external equipment, it is to be understood that the motion
Data can specifically describe the echo-signal and the concrete meaning represented by the motor message, for example：The currently monitored stops
There is the echo-signal and the motor message in parking stall, can using output campaign data as current parking stall in exist close to stopping
Vehicle of car etc., the external equipment is specifically as follows background terminal used in the manager of monitored area, for reality
When monitor situation in the monitored area.
In the utility model embodiment, by using the radar sensor of two continuous wave Dopplers in monitored area
Target object be monitored, can meet the monitoring of stationary body and the monitoring of dynamic object simultaneously, simplify to target object
Monitoring operand, improve the monitoring efficiency to target object, effectively avoid monitoring blind area, it is ensured that to object
The accuracy of body monitoring.
Above disclosed is only the utility model preferred embodiment, can not limit the utility model with this certainly
Interest field, one of ordinary skill in the art will appreciate that realize all or part of flow of above-described embodiment, and according to this reality
The equivalent variations made with new claim, still fall within the scope that utility model is covered.
Claims (8)
1. a kind of object monitoring device, it is characterised in that including the first radar sensor, the second radar sensor and microcontroller list
First MCU；Wherein, first radar sensor and second radar sensor are the radar sensing of continuous wave Doppler
Device；
First radar sensor and second radar sensor are connected with the MCU respectively；
The first radar beam covering of first radar sensor includes the monitoring range including target object, first thunder
The first radar beam, the second radar beam covering bag of second radar sensor are sent up to sensor to the monitoring range
Containing the monitoring range including target object, second radar sensor sends the second radar beam, institute to the monitoring range
The echo-signal for stating the target object that the second radar beam reflects generation through the target object is transmitted to first thunder
Up to sensor, second radar beam through the target object reflect generation the target object motor message transmit to
Second radar sensor, the echo-signal is transmitted to the MCU, the motor message through first radar sensor
Transmitted through second radar sensor to the MCU, the echo-signal and the motor message are carried out through the MCU respectively
Signal transacting generates the exercise data of the target object.
2. equipment according to claim 1, it is characterised in that also including the first wave filter and the second wave filter；Wherein,
First radar sensor is connected through first wave filter with the MCU, and second radar sensor is through institute
The second wave filter is stated with the MCU to be connected.
3. equipment according to claim 2, it is characterised in that first radar beam reflects through the target object gives birth to
Into the first echo signal of the target object transmit to first radar sensor, second radar beam is through described
The second echo signal of the target object of target object reflection generation is transmitted to first radar sensor, described first
Echo-signal and the second echo signal are transmitted to first wave filter, described through first radar sensor respectively
One echo-signal and the second echo signal retain the second echo signal after being handled through first filter filtering and made
For the echo-signal of the target object；
First radar beam through the target object reflect generation the target object the first motor message transmit to
Second radar sensor, second radar beam reflects the second of the target object of generation through the target object
Motor message is transmitted to second radar sensor, and first motor message and second motor message are respectively through described
Second radar sensor is transmitted to second wave filter, and first motor message and second motor message are through described
Retain second motor message as the motor message of the target object after the processing of two filter filterings.
4. equipment according to claim 1, it is characterised in that also including geomagnetic sensor, the geomagnetic sensor and institute
MCU is stated to be connected.
5. equipment according to claim 4, it is characterised in that the geomagnetic sensor monitoring changes of magnetic field generation ground magnetic strength
Induction signal, the earth induction signal is transmitted to the MCU through the geomagnetic sensor, and the earth induction signal is through described
MCU carries out signal conversion generation enabling signal, and the enabling signal is transmitted separately to first radar sensor through the MCU
With the second radar sensor.
6. equipment according to claim 1, it is characterised in that also including data output interface, the data output interface
It is connected respectively with the MCU and external equipment.
7. equipment according to claim 6, it is characterised in that the exercise data is transmitted to the data through the MCU
Output interface, and exported through the data output interface to the external equipment.
8. equipment according to claim 1, it is characterised in that the tranmitting frequency of first radar sensor is
24.1GHz, the tranmitting frequency of second radar sensor is 24.12GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720025823.9U CN206378590U (en) | 2017-01-10 | 2017-01-10 | A kind of object monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720025823.9U CN206378590U (en) | 2017-01-10 | 2017-01-10 | A kind of object monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206378590U true CN206378590U (en) | 2017-08-04 |
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ID=59404718
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720025823.9U Expired - Fee Related CN206378590U (en) | 2017-01-10 | 2017-01-10 | A kind of object monitoring device |
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| Country | Link |
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| CN (1) | CN206378590U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108614263A (en) * | 2018-04-20 | 2018-10-02 | Oppo广东移动通信有限公司 | Mobile terminal, method for detecting position and Related product |
-
2017
- 2017-01-10 CN CN201720025823.9U patent/CN206378590U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108614263A (en) * | 2018-04-20 | 2018-10-02 | Oppo广东移动通信有限公司 | Mobile terminal, method for detecting position and Related product |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170804 Termination date: 20200110 |