CN211786093U

CN211786093U - Multi-station ultrasonic sensor ranging module

Info

Publication number: CN211786093U
Application number: CN201922390327.5U
Authority: CN
Inventors: 唐晓明
Original assignee: Rugao Zhongguang Electronic Technology Co ltd
Current assignee: Rugao Zhongguang Electronic Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-27
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses an ultrasonic sensor ranging module of multistation, its structure includes support, a plurality of different output frequency's ultrasonic sensor and noise detection appearance, and the top of support is equipped with the rotating electrical machines, and the output of rotating electrical machines is equipped with the circular shape graduated disk, and graduated disk equidistance division has a plurality of sectorial detection stations, and a plurality of ultrasonic sensor correspond the one-to-one respectively and fix on detecting the station, are equipped with PLC on the rotating electrical machines, and noise detection appearance fixes at the top of support and is connected with the PLC electricity, the utility model discloses an external noise is proper ultrasonic sensor of autonomous selection and is surveyed the range to the target, has improved the precision that the target object ranged range.

Description

Multi-station ultrasonic sensor ranging module

The technical field is as follows:

the utility model belongs to the technical field of the ultrasonic sensor range finding technique and specifically relates to an ultrasonic sensor range finding module of multistation.

Background art:

an ultrasonic sensor is a sensor that converts an ultrasonic signal into another energy signal (typically an electrical signal). The ultrasonic sensor performs non-contact non-abrasion detection on the detected object by using the sound wave medium. Wherein the ultrasonic wave is a mechanical wave with vibration frequency higher than 20 KHz. It has the features of high frequency, short wavelength, less diffraction, high directivity, directional propagation, etc. Therefore, the ultrasonic sensor can detect transparent or colored objects, metal or nonmetal objects, solid, liquid and powdery substances, especially opaque solids in sunlight. The detection performance is hardly influenced by any environmental conditions, including smoke environment and rainy days, but factors influencing the measurement accuracy of the ultrasonic sensor are various, particularly in a building place, a plurality of mechanical devices exist, generated noise is various, and the accuracy of the distance measurement of the ultrasonic sensor is easily influenced.

The utility model has the following contents:

the utility model aims at providing an ultrasonic sensor ranging module of multistation solves one or more among the above-mentioned prior art problem.

In order to solve the technical problem, the utility model discloses an innovation point lies in: its structure includes support, a plurality of different output frequency's ultrasonic sensor and noise detection appearance, and the top of support is equipped with the rotating electrical machines, and the output of rotating electrical machines is equipped with the circular shape graduated disk, and the graduated disk equidistance is divided there are a plurality of sectorial detection stations, and a plurality of ultrasonic sensor correspond the one-to-one respectively and fix on detecting the station, are equipped with PLC on the rotating electrical machines, and noise detection appearance is fixed at the top of support and is connected with the PLC electricity.

Furthermore, sound insulation boards are arranged among the detection stations at intervals.

Further, the rotating electric machine is a servo rotating electric machine.

Furthermore, the circle intervals among a plurality of the ultrasonic sensors are the same.

Further, the utility model discloses the structure still includes locating component, and locating component includes a plurality of RFID labels and locating lever, and a plurality of RFID labels one-to-one respectively are fixed on surveying the station, and the locating lever is fixed at the top of support, and the extending direction of locating lever is on a parallel with the graduated disk, and the tip of locating lever is equipped with the singlechip, and the input of singlechip is used for receiving the signal of RFID label, and singlechip output and PLC electricity are connected.

The beneficial effects of the utility model reside in that: the utility model provides an ultrasonic sensor range finding technical field when carrying out detection distance to the object, utilizes noise detector to carry out the noise detection to external environment's noise to carry out detection distance to the object according to the structure autonomous selection suitable ultrasonic sensor that the noise detected, the effectual external noise that has reduced has improved the precision of ultrasonic sensor detection object distance to the influence of ultrasonic detection sound wave frequency.

Description of the drawings:

fig. 1 is a front view of the present invention.

Fig. 2 is a schematic circuit diagram of the present invention.

The specific implementation mode is as follows:

in order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

Fig. 1 to fig. 2 do the utility model discloses a concrete implementation mode, its structure includes support 1, a plurality of different output frequency's ultrasonic sensor 2 and noise detector 3, the top of support 1 is equipped with rotating electrical machines 11, rotating electrical machines 11's output is equipped with circular shape graduated disk 12, graduated disk 12 equidistance is divided and is had a plurality of sectorial detection stations 4, a plurality of ultrasonic sensor 2 correspond the one-to-one respectively and fix on detecting stations 4, be equipped with PLC on the rotating electrical machines 11, noise detector 3 fixes at support 1's top and is connected with the PLC electricity.

The utility model discloses in, before utilizing ultrasonic sensor 2 to find a distance, the frequency of external noise is preferentially monitored to noise detector 3, and according to the external noise frequency that noise detector 3 detected, gives PLC with noise frequency signal transmission, and PLC carries out detection distance to the object according to the ultrasonic sensor 2 of the frequency selection suitable frequency of current external noise, and the concrete performance is as follows: PLC control rotating electrical machines 11 rotates, rotating electrical machines 11 drives graduated disk 12 and rotates, at the rotation in-process of graduated disk 12, it rotates along with it to survey station 4, will survey the ultrasonic sensor 2 of the inside suitable frequency of station 4 and rotate to suitable position, open the ultrasonic sensor of this position, carry out detection distance to the object, follow-up external noise frequency changes the back, the noise frequency that corresponding noise detection appearance 3 detected also continues to change, when utilizing ultrasonic detection distance, continue to select suitable ultrasonic sensor 2 according to above-mentioned theory of operation and carry out detection distance to the object, it is concrete, PLC is when selecting suitable ultrasonic sensor 2, the basis of selection is: the frequency difference between the external noise frequency and the frequency of the ultrasonic sensor 2 in the detection station 4 is the largest, and through the steps, when the target object is detected, the proper ultrasonic sensor 2 is selected to detect the distance, so that the influence of the external noise on the ultrasonic detection sound wave frequency is effectively reduced, and the precision of the ultrasonic sensor 2 for detecting the distance of the target object is improved.

The utility model discloses in, for further reduction external noise to surveying the inside ultrasonic sensor 2's of station 4 influence, there is acoustic celotex board 41 at the interval between a plurality of above-mentioned survey stations 4, and acoustic celotex board 41 can completely cut off external partial noise, has reduced the noise and has surveyed ultrasonic influence to ultrasonic sensor 2.

The utility model discloses, for the convenience of PLC to rotating electrical machines's control, above-mentioned rotating electrical machines 11 utilizes servo rotating electrical machines self function for servo rotating electrical machines, PLC can control servo rotating electrical machines's rotation rate, radius of rotation to the realization is with suitable detection station 4 rotatory suitable position.

The utility model discloses in, the circle interval between a plurality of above-mentioned ultrasonic sensor 2 is the same, and the circle interval between ultrasonic sensor 2 is the same, has guaranteed the homogeneity that ultrasonic sensor 2 distributes on graduated disk 12, is favorable to selecting suitable ultrasonic sensor 2 at every turn, and selected ultrasonic sensor 2 all stops in the same position, has improved ultrasonic sensor 2 to the precision of target object range finding.

In the utility model, in order to specifically explain how PLC selects the ultrasonic sensor 2 with proper frequency and make the ultrasonic sensor 2 stop at proper position, the structure of the utility model also comprises a positioning component 5, the positioning component 5 comprises a plurality of RFID labels 51 and a positioning rod 52, the RFID labels 51 are respectively fixed on the detection station 4 in one-to-one correspondence, the positioning rod 52 is fixed on the top of the bracket 1, the extending direction of the positioning rod 52 is parallel to the index plate 12, the end part of the positioning rod 52 is provided with a single chip microcomputer 521, the input end of the single chip microcomputer 521 is used for receiving the signal of the RFID label 51, the output end of the single chip microcomputer 521 is electrically connected with the PLC, the ultrasonic frequency of the ultrasonic sensor 2 on the corresponding detection station 4 is input into each RFID label 51, in the rotating process of the index plate 12, the RFID label 51 is driven to pass through the bottom of the single chip microcomputer 521 in turn, when, REFID tag 51 transmits the signal to single-chip microcomputer 521 at this time, and single-chip microcomputer 521 processes: the signal of passing into frequency with REFID label 51 and the signal that noise detector 3 detected are compared, after the comparison, select RDFID label 51 and the input signal that the external noise frequency that detects differed the biggest to reached and stopped suitable RDFID label 51 under locating lever 52, at this moment, ultrasonic sensor 2 under locating lever 52 is the most suitable ultrasonic sensor under the current environment.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an ultrasonic sensor range module of multistation which characterized in that: the structure of the ultrasonic detector comprises a support (1), a plurality of ultrasonic sensors (2) with different output frequencies and a noise detector (3), wherein a rotating motor (11) is arranged at the top of the support (1), the output end of the rotating motor (11) is provided with a circular dividing disc (12), the dividing disc (12) is divided into a plurality of fan-shaped detection stations (4) in equal intervals, the ultrasonic sensors (2) are fixed on the detection stations (4) in a one-to-one correspondence mode respectively, a PLC is arranged on the rotating motor (11), and the noise detector (3) is fixed to the top of the support (1) and electrically connected with the PLC.

2. The multi-station ultrasonic sensor ranging module according to claim 1, wherein: sound insulation boards (41) are arranged among the detection stations (4).

3. The multi-station ultrasonic sensor ranging module according to claim 1, wherein: the rotating motor (11) is a servo rotating motor.

4. The multi-station ultrasonic sensor ranging module according to claim 1, wherein: the circle intervals among the plurality of ultrasonic sensors (2) are the same.

5. The multi-station ultrasonic sensor ranging module according to claim 1, wherein: the structure of the device also comprises a positioning assembly (5), wherein the positioning assembly (5) comprises a plurality of RFID tags (51) and a positioning rod (52), the RFID tags (51) are fixed on the detection station (4) in a one-to-one correspondence mode respectively, the positioning rod (52) is fixed at the top of the support (1), the extending direction of the positioning rod (52) is parallel to the index plate (12), a single chip microcomputer (521) is arranged at the end part of the positioning rod (52), the input end of the single chip microcomputer (521) is used for receiving signals of the RFID tags (51), and the output end of the single chip microcomputer (521) is electrically connected with the PLC.