CN202486309U - Signal transducer combining ranging and positioning - Google Patents
Signal transducer combining ranging and positioning Download PDFInfo
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- CN202486309U CN202486309U CN2012200597038U CN201220059703U CN202486309U CN 202486309 U CN202486309 U CN 202486309U CN 2012200597038 U CN2012200597038 U CN 2012200597038U CN 201220059703 U CN201220059703 U CN 201220059703U CN 202486309 U CN202486309 U CN 202486309U
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Abstract
The utility model relates to a signal transducer combining ranging and positioning. The signal transducer combining the ranging and the positioning comprises an ultrasonic transmitting and receiving circuit and a control module which are used for the ranging; and an infrared transmitting and receiving circuit and a display module which are used for positioning and detecting obstacles. The ultrasonic transmitting and receiving circuit comprises an ultrasonic transmitting module for transmitting an ultrasonic wave and an ultrasonic receiving module for receiving returned ultrasonic wave signals. The infrared transmitting and receiving circuit comprises an infrared transmitting module for transmitting infrared rays to detect the obstacles and an infrared receiver for receiving returned infrared rays. The ultrasonic receiving module, the infrared receiver and the display module are all connected with the control module. Through the infrared transmitting and receiving circuit, the signal transducer combining the ranging and the positioning can eliminate dead zones of an ultrasonic transducer, has detecting advantages of an ultrasonic transducer and an infrared transducer, can carry out ranging and orientation accurately, improves a whole performance of a system, and has the advantages of being more comprehensive in functions, higher in accuracy, simpler in structure and lower in cost.
Description
Technical field
The utility model relates to a kind of positioning signal sensor, what be specifically related to is a kind of positioning signal sensor that utilizes ultrasound wave and infrared ray hybrid ranging location.
Background technology
Sensor detecting, telecommunication technology, Computer Control Technology are three big pillars of modern information technologies, and they have constituted " sense organ ", " nerve " and " brain " of information technology system respectively.Sensor technology is the important technology basis of information society, and its kind, performance and quality have directly determined the function and the quality of information technology system.Along with development of modern science and technology; People have higher requirement to the performance level and the operational mode of sensor; And in the sensor family that is extensively used by people; Ultrasonic sensor and infrared ray sensor obtain people's favor with its excellent performance, are widely used in military affairs, medical treatment, industry and household appliances.But ultrasonic sensor and infrared ray sensor generally all are independent uses at present; And at present; Ultrasonic sensor is widely used as distance measuring sensor, and a kind of accessorial visual means of Chang Zuowei and other vision aids (like ccd image sensor) are used, and can effectively improve the visual performance of machine.
Existing ultrasonic positioning sensor comprises ultrasonic emitting sensor and ultrasound wave receiving sensor; This principle of work is: the ultrasonic emitting sensor is to a certain direction emission ultrasound wave; In emission, pick up counting; Ultrasound wave is propagated in air, runs into barrier in the way and just returns immediately, and the ultrasound wave receiving sensor receives that reflection wave just stops timing immediately.The aerial velocity of propagation of ultrasound wave is 340m/s, according to the time t of timer record, just can calculate launching site apart from barrier apart from S, that is: S=340t/2.But existing ultrasonic positioning sensor is because ultrasonic signal has directivity; The limited coverage area of discrete component (ultrasonic emitting element, ultrasound wave receiving element) can not guarantee that the ultrasonic signal that the ultrasonic emitting sensor sends can be received by the ultrasound wave receiving sensor exactly outward; And because the wave beam of ultrasonic sensor is dispersed more serious; When ultrasonic emitting point is far away apart from barrier; The direction bearing accuracy of ultrasonic sensor is relatively poor, causes the ultrasonic positioning sensor poor work stability, thereby is necessary to introduce other method or sensor improves its performance.
The utility model content
To the deficiency that exists on the prior art; The utility model purpose is to be to provide a kind of employing infrared ray sensor to eliminate the ultrasonic sensor blind area; And utilize ultrasound wave and infrared ray hybrid ranging location, improve the hybrid ranging positioning signal sensor of entire system performance
To achieve these goals, the utility model is to realize through following technical scheme:
A kind of hybrid ranging positioning signal sensor; It comprises ultrasonic transmission/reception circuit and the control module that is used to find range; It is characterized in that; It also comprises infrared ray transmission circuit and the display module that is used to position the detecting obstacles thing; Said ultrasonic transmission/reception circuit comprises and is used to launch hyperacoustic ultrasonic emitting module and is used to receive the ultrasound wave receiver module that returns ultrasonic signal that said infrared ray transmission circuit comprises that being used to launch infrared ray carries out the infrared module of detecting obstacles thing and be used for reception returning ultrared infrared receiver, and said ultrasound wave receiver module, infrared receiver and display module all are connected with control module.
Further; Said ultrasound wave receiver module comprises ultrasonic receiver, first amplifier and signal conditioning circuit; The output terminal of said ultrasonic receiver connects the incoming end of first amplifier; The output terminal of said first amplifier connects the incoming end of signal conditioning circuit, the incoming end of said signal conditioning circuit output terminal link control module.
Further, said ultrasonic emitting module comprises ultrasonic transmitter, second amplification appliance and first clock circuit, and the output terminal of said first clock circuit connects second amplifier input terminal, and the output terminal of said second amplifier connects ultrasonic transmitter.
Further, said infrared module comprises second clock circuit, the 3rd amplifier and RF transmitter, and the output terminal of said second clock circuit connects the 3rd amplifier input terminal, and the output terminal of said the 3rd amplifier connects RF transmitter.
What further, said control module adopted is the AT89C51 single-chip microcomputer.
As preferably, what said display module adopted is light-emitting diode display.
The utility model can remedy the deficiency on the ultrasonic sensor performance through the infrared ray transmission circuit, eliminates the ultrasonic sensor blind area with respect to ultrasonic sensor, and its orientation accuracy is greatly improved.Possessed the advantage that ultrasonic sensor and infrared ray sensor are surveyed simultaneously, can find range and orientation more accurately, improved the overall performance of system, it has the advantage that function is more complete, precision is higher, structure is simpler, cost is lower.
Description of drawings
Specify the utility model below in conjunction with accompanying drawing and embodiment;
Fig. 1 is the module diagram of the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with embodiment, further set forth the utility model.
Referring to Fig. 1; Present embodiment provides a kind of elimination ultrasonic sensor blind area; Utilize the hybrid ranging positioning signal sensor of ultrasound wave and infrared ray hybrid ranging location, it comprises ultrasonic transmission/reception circuit, the control module that is used to find range, infrared ray transmission circuit and the display module that is used to position the detecting obstacles thing; Said ultrasonic transmission/reception circuit comprises and is used to launch hyperacoustic ultrasonic emitting module 30 and is used to receive the ultrasound wave receiver module 20 that returns ultrasonic signal; Said infrared ray transmission circuit comprises that being used to launch the infrared module 40 that infrared ray carries out the detecting obstacles thing returns ultrared infrared receiver 50 with being used for receiving, and said ultrasound wave receiver module 20, infrared receiver 50 all are connected with control module with display module.
Present embodiment ultrasound wave receiver module 20 comprises ultrasonic receiver 21, first amplifier 22 and signal conditioning circuit 23; The output terminal of said ultrasonic receiver 21 connects the incoming end of first amplifier 22; The output terminal of said first amplifier 22 connects the incoming end of signal conditioning circuit 23, the incoming end of these signal conditioning circuit 23 output terminal link control modules.Ultrasonic emitting module 30 comprises ultrasonic transmitter 31, second amplification appliance 32 and first clock circuit 33; The output terminal of said first clock circuit 33 connects the input end of second amplification appliance 32, and the output terminal of said second amplification appliance 32 connects ultrasonic transmitter 31.In this ultrasonic emitting module 30, control ultrasound wave through input pin, and launch through the emitting head of ultrasonic transmitter.In first amplifier 22, the reception head through ultrasonic receiver 21 receives ultrasound wave earlier, amplifies 60dB to signal through two-stage amplifier then, flows to the ultrasound wave detecting circuit again.In this ultrasound wave detecting circuit; Ultrasonic pulse signal is rectified into positive phase signals (through test; This positive phase signals is similar to direct current signal); This positive phase signals changes the voltage comparator in the circuit over to, causes comparer output pin (being the INT0 pin of single-chip microcomputer) voltage jump, can judge whether that thus echoed signal exists.
It should be noted that; This enforcement infrared module 40 comprises second clock circuit 41, the 3rd amplifier 42 and RF transmitter 43; The output terminal of said second clock circuit 41 connects the input end of the 3rd amplifier 42, and the output terminal of said the 3rd amplifier 42 connects RF transmitter 43.In this circuit, the signal that infrared ray sensor receives through the input of IN pin, when the base stage of triode has electric current, the triode conducting, thus there is electric current to flow through from the infrared diode that is positioned at emitter, inspire infrared ray.In infrared receiver 50; When receiving the reflected infrared signal; The resistance of photodiode will be lowered, and the voltage that is input to the voltage comparator negative terminal will be raised, thereby make the output terminal output low level of comparer; And show through extinguishing of light emitting diode, can judge thus whether the place ahead has barrier.
In the present embodiment, what control module adopted is AT89C51 single-chip microcomputer 10, is used for control signal emission function, signal judgement and analytic function and control Presentation Function; What display module adopted is light-emitting diode display 60.The AT89C51 single-chip microcomputer receives information that front two parts circuit feeds back and through after the processing of respective algorithms; Draw the distance and information such as direction of objects in front; Can control corresponding controlled device carries out corresponding action on the one hand, can show corresponding distance through LED on the other hand.
In present embodiment when work, at first start infrared ray sensor and survey, and when having detected barrier and exist, restarts ultrasonic sensor and find range, and shows through LED then.If detected object in the measurement blind area of ultrasonic sensor, is then adjusted the distance according to the response condition of infrared ray sensor and is estimated to show.
Its concrete principle of work is: after infrared ray reflecting module energized, promptly forwards launch infrared ray from the infrared reflection pipe of inside modules, in case when having the object or person body to get in its effective investigative range; Infrared ray will some be reflected; Received with the photosensitive receiving tube that row installs with power valve, therefore the resistance of photosensitive receiving tube will reduce, and cause that change in voltage appears in the resistance with its polyphone; After the voltage comparator processing; Provide low level signal at output terminal, cause singlechip interruption, thereby control effectively.
Based on above-mentioned; The utility model adopts ultrasonic sensor and infrared ray sensor to form Ranging Integration Location System; Overcome deficiency by detection system that single-sensor constitutes; Possessed the advantage that ultrasonic sensor and infrared ray sensor are surveyed simultaneously, can find range and orientation more accurately.Simultaneously, system has also adopted single-chip microcomputer control technology, makes system have good extendability and practicality.
And, can also adopt reaction velocity faster infrared ray sensor (like the photoconduction infrared sensor, its response time has reached the microsecond level) eliminate the ultrasonic sensor blind area, improve the overall performance of system.Infrared ray has the little advantage of beam divergence, is easy to obtain the light beam visual angle at present less than 5 ° infrared ray sensor.
More than show and described ultimate principle of the utility model and the advantage of principal character and the utility model.The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the instructions that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (6)
1. hybrid ranging positioning signal sensor; It comprises ultrasonic transmission/reception circuit and the control module that is used to find range; It is characterized in that; It also comprises infrared ray transmission circuit and the display module that is used to position the detecting obstacles thing; Said ultrasonic transmission/reception circuit comprises and is used to launch hyperacoustic ultrasonic emitting module and is used to receive the ultrasound wave receiver module that returns ultrasonic signal that said infrared ray transmission circuit comprises that being used to launch infrared ray carries out the infrared module of detecting obstacles thing and be used for reception returning ultrared infrared receiver, and said ultrasound wave receiver module, infrared receiver and display module all are connected with control module.
2. a kind of hybrid ranging positioning signal sensor according to claim 1; It is characterized in that; Said ultrasound wave receiver module comprises ultrasonic receiver, first amplifier and signal conditioning circuit; The output terminal of said ultrasonic receiver connects the incoming end of first amplifier, and the output terminal of said first amplifier connects the incoming end of signal conditioning circuit, the incoming end of said signal conditioning circuit output terminal link control module.
3. a kind of hybrid ranging positioning signal sensor according to claim 2; It is characterized in that; Said ultrasonic emitting module comprises ultrasonic transmitter, second amplification appliance and first clock circuit; The output terminal of said first clock circuit connects second amplifier input terminal, and the output terminal of said second amplifier connects ultrasonic transmitter.
4. according to claim 1 or 3 described a kind of hybrid ranging positioning signal sensors; It is characterized in that; Said infrared module comprises second clock circuit, the 3rd amplifier and RF transmitter; The output terminal of said second clock circuit connects the 3rd amplifier input terminal, and the output terminal of said the 3rd amplifier connects RF transmitter.
5. a kind of hybrid ranging positioning signal sensor according to claim 1 is characterized in that, what said control module adopted is the AT89C51 single-chip microcomputer.
6. a kind of hybrid ranging positioning signal sensor according to claim 1 is characterized in that, what said display module adopted is light-emitting diode display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200597038U CN202486309U (en) | 2012-02-23 | 2012-02-23 | Signal transducer combining ranging and positioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200597038U CN202486309U (en) | 2012-02-23 | 2012-02-23 | Signal transducer combining ranging and positioning |
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| Publication Number | Publication Date |
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| CN202486309U true CN202486309U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200597038U Expired - Fee Related CN202486309U (en) | 2012-02-23 | 2012-02-23 | Signal transducer combining ranging and positioning |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590816A (en) * | 2012-02-23 | 2012-07-18 | 江苏三通仪器系统有限公司 | Comprehensive ranging positioning signal sensor |
| CN104536002A (en) * | 2014-12-15 | 2015-04-22 | 河南师范大学 | Integrated voice directional propagation device with target detection function |
-
2012
- 2012-02-23 CN CN2012200597038U patent/CN202486309U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590816A (en) * | 2012-02-23 | 2012-07-18 | 江苏三通仪器系统有限公司 | Comprehensive ranging positioning signal sensor |
| CN104536002A (en) * | 2014-12-15 | 2015-04-22 | 河南师范大学 | Integrated voice directional propagation device with target detection function |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20130223 |