CN107170169A - The anti-interference method and system of a kind of infrared shooting device - Google Patents
The anti-interference method and system of a kind of infrared shooting device Download PDFInfo
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- CN107170169A CN107170169A CN201710329185.4A CN201710329185A CN107170169A CN 107170169 A CN107170169 A CN 107170169A CN 201710329185 A CN201710329185 A CN 201710329185A CN 107170169 A CN107170169 A CN 107170169A
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- light beam
- default
- predetermined number
- code information
- arranged code
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
- G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
- G08B29/18—Prevention or correction of operating errors
- G08B29/185—Signal analysis techniques for reducing or preventing false alarms or for enhancing the reliability of the system
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a kind of anti-interference method of infrared shooting device and system, by the transmitting light beam for carrying pre-arranged code information for launching predetermined number successively according to default launch requirements, the default launch requirements include default shooting sequence and default transmission time interval, then the receive information of all reception light beams received is obtained, the receive information includes received quantity, reception order, receive the coding information of time interval and its carrying, and by default launch requirements, predetermined number and pre-arranged code information are compared with receive information, obtain the interference signal in all reception light beams, final filtering interference signals, accurately the interference signal in infrared shooting device can be filtered out, improve its antijamming capability, avoid occurring false alarm.
Description
Technical field
The present invention relates to infrared emission technical field, more particularly to a kind of infrared shooting device anti-interference method and be
System.
Background technology
Infrared emission is named as " active infrared intrsion detector " entirely, and its basic construction includes transmitting terminal, receiving terminal, light beam
Strong indicating lamp, optical lens etc..It is the infrared-ray launched using infrarede emitting diode that it, which detects principle, then by optics
Lens do focusing, light is reached great distances, and last light is received by the photistor of receiving terminal.When there is object gear
Firmly during the infrared-ray of transmitting terminal transmitting, receiving terminal can not receive infrared ray, can send alarm.Based on the such a of infrared emission
Function, it is usually used in the purposes of boundary defence, burglar alarm.
However, existing infrared shooting device can be influenceed by extraneous factors such as strong light, misty rains, and infrared emission is caused to be examined
The accuracy reduction of survey, anti-jamming effectiveness is poor.
The content of the invention
The embodiments of the invention provide a kind of anti-interference method of infrared shooting device and system, it is intended to solves existing red
Outer poor to injection device anti-jamming effectiveness the problem of.
The first aspect of the embodiment of the present invention provides a kind of anti-interference method of infrared shooting device, including：
Launch the transmitting light beam for carrying pre-arranged code information of predetermined number successively according to default launch requirements, it is described pre-
If launch requirements include default shooting sequence and default transmission time interval；
Obtain the receive information of all reception light beams received, the receive information include received quantity, reception order,
Receive the coding information that time interval and all reception light beams are carried；
The default launch requirements, the predetermined number and the pre-arranged code information are compared with the receive information
It is right, obtain all interference signals received in light beam；
Filter out the interference signal.
The second aspect of the embodiment of the present invention provides a kind of jamproof system of infrared shooting device, including：
Transmitter module, the hair for carrying pre-arranged code information for launching predetermined number successively according to default launch requirements
Irradiating light beam, the default launch requirements include default shooting sequence and default transmission time interval；
Receiving module, the receive information for obtaining all reception light beams received, the receive information includes receiving
Quantity, reception order, the coding information for receiving time interval and all reception light beam carryings；
Interference signal acquisition module, for the default launch requirements, the predetermined number and the pre-arranged code to be believed
Breath is compared with the receive information, obtains all interference signals received in light beam；
Interference signal filters out module, for filtering out the interference signal.
The beneficial effect that the embodiment of the present invention exists compared with prior art is：By being sent out successively according to default launch requirements
The transmitting light beam for carrying pre-arranged code information of predetermined number is penetrated, the default launch requirements include default shooting sequence and pre-
If transmission time interval, the receive information of all reception light beams received is then obtained, the receive information includes receiving number
Amount, reception order, receive time interval and its coding information carried, and by default launch requirements, predetermined number and default compile
Code information is compared with receive information, obtains the interference signal in all reception light beams, final filtering interference signals, Ke Yizhun
Really the interference signal in infrared shooting device is filtered out, its antijamming capability is improved, it is to avoid occurs false alarm.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In required for the accompanying drawing that uses be briefly described, it should be apparent that, drawings in the following description are only some of the present invention
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is a kind of implementation process of the anti-interference method for infrared shooting device that one embodiment of the present of invention is provided
Figure；
Fig. 2 is the implementation process figure of step S101 in Fig. 1 that one embodiment of the present of invention is provided；
Fig. 3 is the implementation process figure of step S103 in Fig. 1 that one embodiment of the present of invention is provided；
Fig. 4 is a kind of structured flowchart of the jamproof system for infrared shooting device that one embodiment of the present of invention is provided；
Fig. 5 is the structured flowchart of transmitter module in Fig. 4 that one embodiment of the present of invention is provided；
Fig. 6 is the structured flowchart of interference signal acquisition module in Fig. 4 that one embodiment of the present of invention is provided.
Embodiment
To enable goal of the invention, feature, the advantage of the present invention more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that disclosed below
Embodiment be only a part of embodiment of the invention, and not all embodiment.Based on the embodiment in the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
In order to illustrate technical solutions according to the invention, illustrated below by specific embodiment.
As shown in figure 1, a kind of anti-interference method of the infrared shooting device provided for one embodiment of the present of invention, it is wrapped
Include：
Step S101, the transmitting light for carrying pre-arranged code information of predetermined number is launched according to default launch requirements successively
Beam, presetting launch requirements includes default shooting sequence and default transmission time interval.
In one embodiment, infrared shooting device includes transmitting terminal and receiving terminal, and transmitting terminal includes multiple transmitting tubes, often
Individual transmitting tube can launch single beam, and receiving terminal includes to receive with the one-to-one multiple reception pipes of transmitting tube, each reception pipe
Corresponding single beam.The installation site of the corresponding transmitting tube of reception pipe is parallel.
In a particular application, by controlling the working condition of each transmitting tube, it is possible to achieve the transmitting number to launching light beam
The control of amount, shooting sequence and transmission time interval, transmitting tube launches light beam when opening, and light beam is not launched during closing.Control is pre-
If each transmitting tube in the transmitting tube of quantity opens transmitting light beam according to prefixed time interval successively, each transmitting tube launches light
Closed immediately after beam, each only one of which transmitting tube is in closed mode in work, other transmitting tubes, in each transmitting
After the transmitting of pipe terminates, by presetting transmission time interval, then next transmitting tube is set to open concurrent irradiating light beam, so as to realize pre-
If the transmitting light beam of quantity is launched successively according to default shooting sequence and default transmission time interval.Control the transmitting of predetermined number
Each transmitting tube in pipe opens transmitting light beam according to prefixed time interval in turn, after the transmitting of each transmitting tube terminates,
By presetting transmission time interval, then next transmitting tube is set to open concurrent irradiating light beam；In the emitter junction of last transmitting tube
Shu Hou, by presetting transmission time interval, then makes first transmitting tube open concurrent irradiating light beam, according to this sequential loop, so that
Realize that the transmitting light beam of predetermined number is launched in turn according to default shooting sequence and default transmission time interval.
In a particular application, pre-arranged code information can be loaded into often by setting pulse moder in transmitting terminal
On individual transmitting light beam, so that each transmitting light beam carries pre-arranged code information.
In one embodiment, also include before step S101：
Pre-set and preserve the predetermined number, the pre-arranged code information, the default shooting sequence and described pre-
If transmission time interval.
In one embodiment, the prefixed time interval is constant duration or not constant duration.
In one embodiment, it is each described in the transmitting light beam for carrying pre-arranged code information of the predetermined number
Pre-arranged code information entrained by transmitting light beam is differed.Pre-arranged code information entrained by each transmitting light beam not phase
Together, to distinguish different transmitting light beams.
Step S102, obtains the receive information of all reception light beams received, and receive information includes received quantity, received
Sequentially, time interval and all coding informations for receiving light beam carrying are received.
In one embodiment, also include after step S102：Preserve the receive information of all reception light beams received.
In a particular application, its reception order is determined and between the reception time according to the specific reception time of each reception light beam
Every the reception time can be actual time or reference time, be matched with the launch time for launching light beam.Actual time can be with
Obtained during by network pair, the reference time can be obtained by timing.
In a particular application, the coding letter that light beam is carried can be received to obtain by setting decoding circuit in receiving terminal
Breath.Under normal circumstances, the pre-arranged code information phase that the coding information of light beam carrying answers corresponding transmitting light beam to carry is received
Together, if the two is differed, illustrate there is interference signal, or infrared shooting device is faulty.
In one embodiment, the pre-arranged code information entrained by each transmitting light beam is differed, then receives light beam institute
The coding information of carrying is also different.According to different coding informations, different reception light beams can be distinguished.
Step S103, default launch requirements, predetermined number and pre-arranged code information and receive information are compared, obtained
Interference signal in all reception light beams.
If predetermined number is different from received quantity, illustrate there is transmitting light beam not to be received, its reason includes：Transmitting terminal
It is at least partially obscured, or receiving terminal is faulty, can point out user's manual handle.
If default shooting sequence is different with reception order, fault alarm is sent.
If default transmission time interval is different with time interval is received, it can determine that and be unsatisfactory for default transmission time interval
Period in the light beam that receives be interference signal, can filter out.
If pre-arranged code information is different from the coding information for receiving light beam, it can determine that there is interference letter in reception light beam
Number.
Step S104, filters out the interference signal.
In the present embodiment, after filtering interference signals in receiving light beam, determined whether further according to remaining reception signal
Intrusion event occurs to realize burglar alarm, can improve the accuracy of safety monitoring, it is to avoid missed because misty rain, fallen leaves etc. trigger
Alarm.
The embodiment of the present invention carries pre-arranged code information by launch predetermined number successively according to default launch requirements
Transmitting light beam, the default launch requirements include default shooting sequence and default transmission time interval, then obtain and receive
All reception light beams receive information, the receive information include received quantity, reception order, receive time interval and its take
The coding information of band, and default launch requirements, predetermined number and pre-arranged code information and receive information are compared, obtain institute
There is the interference signal received in light beam, final filtering interference signals accurately can filter the interference signal in infrared shooting device
Remove, improve its antijamming capability, it is to avoid occur false alarm, and accident analysis can also be carried out to infrared shooting device.
Further, as a kind of embodiment, infrared shooting device includes the drive circuit of predetermined number, Mei Gesuo
Stating drive circuit includes an on-off circuit.
In a particular application, drive circuit is infrared emission drive circuit, and on-off circuit is used to control drive circuit and electricity
The conducting and disconnection of source connection.
As shown in Fig. 2 in one embodiment of the invention, the step S101 in the embodiment corresponding to Fig. 1 is specifically wrapped
Include：
Step S201, pre-arranged code information is carried by what the drive circuit of predetermined number launched predetermined number successively
Launch light beam, each one transmitting light beam of drive circuit correspondence.
Step S202, controls the emitting shape of the transmitting light beam corresponding to it by the on-off circuit of each drive circuit respectively
State, emission state includes default shooting sequence and default transmission time interval.
In a particular application, it is every to drive all the way by setting drive circuit in transmitting terminal to drive transmitting tube to launch light beam
Circuit one transmitting tube of correspondence, can individually control the working condition of its corresponding transmitting tube by the drive circuit of predetermined number
(opening or closing), to realize the transmitting light beam of transmitting predetermined number.Transmitting tube launches light beam when opening, and light is not launched during closing
Beam.In the process of running, each only one of which transmitting tube is in work, and other transmitting tubes are in closed mode.
In addition, drive circuit also includes pulse code module, so that transmitting light beam carries pre-arranged code information.
In a particular application, its corresponding drive circuit is controlled to be turned on or off by the on-off circuit of each drive circuit
With the connection of power supply, so as to control the working condition (opening or closing) of each transmitting tube, and then each transmitting light beam is controlled
Emission state.
In one embodiment, pre-arranged code is carried by what the drive circuit of predetermined number launched predetermined number successively
The transmitting light beam of information, and respectively by the on-off circuit of each drive circuit control corresponding to it transmitting light beam emitting shape
State.
Controlled by the on-off circuit of each drive circuit, after the transmitting of each transmitting tube terminates, by default hair
Time interval is penetrated, then next transmitting tube is opened concurrent irradiating light beam.
In one embodiment, pre-arranged code is carried by what the drive circuit of predetermined number launched predetermined number in turn
The transmitting light beam of information, and respectively by the on-off circuit of each drive circuit control corresponding to it transmitting light beam emitting shape
State.
Controlled by the on-off circuit of each drive circuit, after the transmitting of each transmitting tube terminates, by default hair
Time interval is penetrated, then next transmitting tube is opened concurrent irradiating light beam；After the transmitting of last transmitting tube terminates, by pre-
If transmission time interval, then first transmitting tube is opened concurrent irradiating light beam, according to this sequential loop.
In the embodiment of the present invention, by setting drive circuit, and controlled respectively by the on-off circuit of each drive circuit
The emission state of transmitting light beam corresponding to it, easy realization simple in construction.
As shown in figure 3, in one embodiment of the invention, the step S103 in the embodiment corresponding to Fig. 1 is specifically wrapped
Include：
Step S301, according to default shooting sequence and default transmission time interval, obtains the preset window of non-emissive light beam
Time.
Step S302, according to reception order and reception time interval, by the reception light received within the preset window time
Beam is defined as interference signal.
As shown in figure 3, in one embodiment of the invention, the step S103 in the embodiment corresponding to Fig. 1 also includes：
Step S303, compares received quantity whether identical with predetermined number.
Step S304, if received quantity is identical with predetermined number, by coding information and the default volume of all transmitting light beams
The reception light beam that code information is differed is defined as interference signal.
Step S305, if received quantity is different from predetermined number, it is more all transmitting light beams pre-arranged code information and
All coding informations for receiving light beam, the pre-arranged code information of the transmitting light beam lacked.
In a particular application, in the transmitting light beam for carrying pre-arranged code information of predetermined number, each transmitting light beam institute
The pre-arranged code information of carrying is differed, and it is also different each to receive the coding information of light beam carrying.
For ease of understanding, the embodiment according to described by Fig. 3, below with a practical application scene to the embodiment of the present invention
It is described：
Infrared shooting device launches 4 light beams altogether：First transmitting light beam, the second transmitting light beam, the 3rd transmitting light beam and the
Four transmitting light beams.Also, the pre-arranged code information that the first transmitting light beam is carried is A, the pre-arranged code that the second transmitting light beam is carried
Information is B, and the pre-arranged code information that the 3rd transmitting light beam is carried is C, and the pre-arranged code information that the 4th transmitting light beam is carried is D.
Also, A ≠ B ≠ C ≠ D.Prefixed time interval between each two transmitting light beam is T, then the preset window time is also T.
Scene 1, the first reception light beam is received in the T1 times, and its coding information carried is A, is received in the T2 times
Light beam is received to second, as T2-T1 ≠ T, second receives light beam for interference signal.
Scene 2, when receiving 4 light beams：First reception light beam, the second reception light beam, the 3rd reception light beam and the 4th connect
Light beam is received, also, the first coding information for receiving light beam carrying is A, the coding information that the second reception light beam is carried is B ˊ, the 3rd
The coding information for receiving light beam carrying is C, and the coding information that the 4th reception light beam is carried is.As B ˊ ≠ A ≠ B ≠ C ≠ D, then
Two receive light beam for interference signal.
Scene 3, when receiving 3 light beams：First reception light beam, the second reception light beam and the 3rd reception light beam, also, the
One coding information for receiving light beam carrying is A, and the second coding information for receiving light beam carrying is B, what the 3rd reception light beam was carried
Coding information is C.Transmitting light beam of the 4th transmitting light beam for missing is then can obtain, points out user to check whether transmitting terminal has screening
Gear.
It should be understood that the size of the sequence number of each step is not meant to the priority of execution sequence, each process in above-described embodiment
Execution sequence should determine that the implementation process without tackling the embodiment of the present invention constitutes any limit with its function and internal logic
It is fixed.
As shown in figure 4, a kind of jamproof system 100 for infrared shooting device that one embodiment of the present of invention is provided, is used
In performing the method and step in the embodiment corresponding to Fig. 1, it includes：
Transmitter module 110, pre-arranged code information is carried for launch predetermined number successively according to default launch requirements
Transmitting light beam, the default launch requirements include default shooting sequence and default transmission time interval.
Receiving module 120, the receive information for obtaining all reception light beams received, the receive information includes connecing
Receive quantity, reception order, receive time interval and all coding informations for receiving light beam carrying.
Interference signal acquisition module 130, for by the default launch requirements, the predetermined number and the pre-arranged code
Information is compared with the receive information, obtains all interference signals received in light beam.
Interference signal filters out module 140, for filtering out the interference signal.
In one embodiment, jamproof system 100 also includes：
Memory module is set, for pre-setting and preserving the predetermined number, the pre-arranged code information, described default
Shooting sequence and the default transmission time interval.In one embodiment, the prefixed time interval be constant duration or
Not constant duration.In one embodiment, in the transmitting light beam for carrying pre-arranged code information of the predetermined number, each
Pre-arranged code information entrained by the transmitting light beam is differed.
In one embodiment, transmitter module 110, are specifically additionally operable to：
Launch the transmitting light beam for carrying pre-arranged code information of predetermined number in turn according to default launch requirements.Such as Fig. 5
Shown, in one embodiment of the invention, the transmitter module 110 in the embodiment corresponding to Fig. 4 also includes being used to perform Fig. 2
The structure of method and step in corresponding embodiment, it includes：
Drive circuit unit 111, the carrying of predetermined number is launched for the drive circuit by the predetermined number successively
There is the transmitting light beam of pre-arranged code information, one transmitting light beam of each drive circuit correspondence.
On-off circuit unit 112, for being controlled respectively by the on-off circuit of each drive circuit corresponding to it
The emission state of the transmitting light beam, the emission state includes default shooting sequence and default transmission time interval.
In one embodiment, in the transmitting light beam for carrying pre-arranged code information of predetermined number, light beam is each launched
Entrained pre-arranged code information is differed.
In one embodiment, drive circuit unit 111, are specifically additionally operable to：
Launch the transmitting light beam for carrying pre-arranged code information of predetermined number in turn by the drive circuit of predetermined number.
As shown in fig. 6, in one embodiment of the invention, the interference signal in the embodiment corresponding to Fig. 4 obtains mould
Block 130 also includes the structure for being used to perform the method and step in the embodiment corresponding to Fig. 3, and it includes：
Window time acquiring unit 131, for according to the default shooting sequence and default transmission time interval, obtaining nothing
Launch the preset window time of light beam.
First interference signal acquiring unit 132, for according to the reception order and the reception time interval, will be in institute
State the reception light beam received in the preset window time and be defined as interference signal.
Whether quantity comparing unit 133 is identical with the predetermined number for comparing the received quantity.
Second interference signal acquiring unit 134, will coding if identical with the predetermined number for the received quantity
The reception light beam that information and the pre-arranged code information of all transmitting light beams are differed is defined as interference signal.
Lack light beam acquiring unit 135, if different from the predetermined number for the received quantity, more all institutes
The pre-arranged code information and all coding informations for receiving signal of transmitting light beam are stated, the transmitting light beam lacked
Pre-arranged code information.
Module or unit in all embodiments of the invention, can pass through universal integrated circuit, such as CPU (Central
Processing Unit, central processing unit), or pass through ASIC (Application Specific Integrated
Circuit, application specific integrated circuit) realize.
Step in present invention method can be sequentially adjusted, merged and deleted according to actual needs.
Module or unit in system of the embodiment of the present invention can be combined, divided and deleted according to actual needs.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (10)
1. a kind of anti-interference method of infrared shooting device, it is characterised in that the anti-interference method includes：
Launch the transmitting light beam for carrying pre-arranged code information of predetermined number, the default hair successively according to default launch requirements
Penetrate and require to include default shooting sequence and default transmission time interval；
The receive information of all reception light beams received is obtained, the receive information includes received quantity, reception order, received
Time interval and all coding informations for receiving light beam carrying；
The default launch requirements, the predetermined number and the pre-arranged code information are compared with the receive information,
Obtain all interference signals received in light beam；
Filter out the interference signal.
2. the anti-interference method of infrared shooting device according to claim 1, it is characterised in that the infrared shooting device
Drive circuit including predetermined number, each drive circuit includes an on-off circuit；
The transmitting light beam for carrying pre-arranged code information for launching predetermined number successively according to default launch requirements is specifically wrapped
Include：
Launch the transmitting light beam for carrying pre-arranged code information of predetermined number successively by the drive circuit of the predetermined number,
One transmitting light beam of each drive circuit correspondence；
The emission state of the transmitting light beam corresponding to it, institute are controlled by the on-off circuit of each drive circuit respectively
Stating emission state includes default shooting sequence and default transmission time interval.
3. the anti-interference method of infrared shooting device according to claim 1, it is characterised in that the predetermined number is taken
In transmitting light beam with pre-arranged code information, the pre-arranged code information entrained by each transmitting light beam is differed.
4. the anti-interference method of infrared shooting device according to claim 3, it is characterised in that described by the default hair
Penetrate requirement, the predetermined number and the pre-arranged code information to be compared with the receive information, obtain all receptions
Interference signal in light beam, is specifically included：
According to the default shooting sequence and default transmission time interval, the preset window time of non-emissive light beam is obtained；
According to reception order and the reception time interval, the reception that will be received within the preset window time
Light beam is defined as interference signal.
5. the anti-interference method of infrared shooting device according to claim 3, it is characterised in that described by the default hair
Penetrate requirement, the predetermined number and the pre-arranged code information to be compared with the receive information, obtain all receptions
Interference signal in light beam, in addition to：
Compare the received quantity whether identical with the predetermined number；
If the received quantity is identical with the predetermined number, by coding information and the pre-arranged code of all transmitting light beams
The reception light beam that information is differed is defined as interference signal；
If the received quantity is different from the predetermined number, the pre-arranged code information of more all transmitting light beams and institute
There are the coding information of the reception light beam, the pre-arranged code information of the transmitting light beam lacked.
6. a kind of jamproof system of infrared shooting device, it is characterised in that including：
Transmitter module, the transmitting light for carrying pre-arranged code information for launching predetermined number successively according to default launch requirements
Beam, the default launch requirements include default shooting sequence and default transmission time interval；
Receiving module, for obtaining the receive information of all reception light beams received, the receive information include received quantity,
Reception order, the coding information for receiving time interval and all reception light beam carryings；
Interference signal acquisition module, for by the default launch requirements, the predetermined number and the pre-arranged code information with
The receive information is compared, and obtains all interference signals received in light beam；
Interference signal filters out module, for filtering out the interference signal.
7. the jamproof system of infrared shooting device according to claim 6, it is characterised in that the infrared shooting device
Drive circuit including predetermined number, each drive circuit includes an on-off circuit；
The transmitter module includes：
Drive circuit unit, default volume is carried for what the drive circuit by the predetermined number launched predetermined number successively
The transmitting light beam of code information, one transmitting light beam of each drive circuit correspondence；
On-off circuit unit, for controlling the transmitting corresponding to it by the on-off circuit of each drive circuit respectively
The emission state of light beam, the emission state includes default shooting sequence and default transmission time interval.
8. the jamproof system of infrared shooting device according to claim 6, it is characterised in that the predetermined number is taken
In transmitting light beam with pre-arranged code information, the pre-arranged code information entrained by each transmitting light beam is differed.
9. the jamproof system of infrared shooting device according to claim 8, it is characterised in that the interference signal is obtained
Module includes：
Window time acquiring unit, for according to the default shooting sequence and default transmission time interval, obtaining non-emissive light
The preset window time of beam；
First interference signal acquiring unit, for that according to reception order and the reception time interval, will be preset described
The reception light beam received in window time is defined as interference signal.
10. the jamproof system of infrared shooting device according to claim 8, it is characterised in that the interference signal is obtained
Modulus block also includes：
Whether quantity comparing unit is identical with the predetermined number for comparing the received quantity；
Second interference signal acquiring unit, if identical with the predetermined number for the received quantity, by coding information with
The reception light beam that the pre-arranged code information of all transmitting light beams is differed is defined as interference signal；
Lack light beam acquiring unit, if different from the predetermined number for the received quantity, more all transmittings
The pre-arranged code information of light beam and all coding informations for receiving signal, the default volume of the transmitting light beam lacked
Code information.
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| CN201710329185.4A CN107170169B (en) | 2017-05-11 | 2017-05-11 | A kind of anti-interference method and system of infrared shooting device |
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| CN201710329185.4A CN107170169B (en) | 2017-05-11 | 2017-05-11 | A kind of anti-interference method and system of infrared shooting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884725A (en) * | 2019-03-26 | 2019-06-14 | 珠海格力智能装备有限公司 | Detection method, device, system, storage medium and the processor of optical-signal end |
| WO2021109497A1 (en) * | 2019-12-02 | 2021-06-10 | 合肥美的智能科技有限公司 | Goods falling detection method and system for vending container and vending container |
| CN114681085A (en) * | 2022-03-28 | 2022-07-01 | 上海飞象健康科技有限公司 | Oral cleaner based on intelligent light sensation start-stop control, start-stop control method and terminal |
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| CN109884725A (en) * | 2019-03-26 | 2019-06-14 | 珠海格力智能装备有限公司 | Detection method, device, system, storage medium and the processor of optical-signal end |
| WO2021109497A1 (en) * | 2019-12-02 | 2021-06-10 | 合肥美的智能科技有限公司 | Goods falling detection method and system for vending container and vending container |
| CN114681085A (en) * | 2022-03-28 | 2022-07-01 | 上海飞象健康科技有限公司 | Oral cleaner based on intelligent light sensation start-stop control, start-stop control method and terminal |
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