CN201270570Y

CN201270570Y - Horizontal stage positioning apparatus

Info

Publication number: CN201270570Y
Application number: CNU200820142308XU
Authority: CN
Inventors: 胡艳君
Original assignee: Tianjin Yaan Technology Electronic Co Ltd
Current assignee: Tianjin Yaan Technology Co Ltd
Priority date: 2008-10-10
Filing date: 2008-10-10
Publication date: 2009-07-08
Anticipated expiration: 2018-10-10

Abstract

The utility model relates to a cloud platform positioning device which belongs to the video monitoring field and is composed of an electromotor which is installed on a supporting frame, a cloud platform shaft which is driven by the electromotor and a control circuit, wherein a code disc which is provided with teeth evenly around the code disc is coaxially installed on a free end of an electromotor shaft, a photoelectric coupling position sensor is installed on the upper end surface of the supporting frame on the teeth external edge position of the code disc, a dial plate is fixedly installed on the cloud platform shaft, and a photoelectric coupling reset sensor which senses the dial plate is fixedly installed on a cloud platform base. The cloud platform positioning device has strong versatility, wide application range and lower system cost, and is characterized in that the realization is convenient, a control circuit is simple, and the positioning precision is high, simultaneously, electro-optical conversion principles are utilized, the average service life can be more than tens of thousands of hours, the interference immunity is strong, and the reliability is high.

Description

The The Cloud Terrace positioner

Technical field

The utility model belongs to field of video monitoring, especially a kind of The Cloud Terrace positioner.

Background technology

The Cloud Terrace is the visual plant in the video monitoring system, and it drives the camera rotation and makes the zone that camera is aimed at needs monitoring, therefore, and the good and bad performance and the work quality that directly influences whole monitoring system of The Cloud Terrace positioning performance.

At present The Cloud Terrace realizes that the method for camera location has three kinds: 1, use motor as drive unit, by the rotary pulsed location positioning that how much realizes of control motor; 2, the angle by the rotation of inclinometer record The Cloud Terrace realizes the location; 3, the mode of using motor to combine with photoelectric encoder, how many output pulses by the recording light photoelectric coder realizes locating.All there is common shortcoming in these three kinds of The Cloud Terrace localization methods, i.e. drive circuit complexity, system cost height.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of positioning accuracy height, wide accommodation, use common motor just can realize the The Cloud Terrace positioner of positioning function.

The utility model solves its technical problem and is achieved through the following technical solutions:

A kind of The Cloud Terrace positioner, constitute by the motor that is installed on support, electric motor driven The Cloud Terrace axle and control circuit, it is characterized in that: be coaxially installed with at the uniform code-disc that is shaped on the shape tooth of its periphery at the free end of motor reel, one photoelectricity coupling position transducer be installed in the support upper surface of the shape tooth exterior rim position of this code-disc; On the The Cloud Terrace axle, be fixed with a plectrum, on the The Cloud Terrace base, be fixed with the photoelectricity coupling reseting sensor of this plectrum of induction.

And, described code-disc be at least two and mutually closed assembly constitute, each code-disc behind closed assembly its shape tooth for evenly staggering mutually.

And the shape tooth of described code-disc is a rectangular teeth, or stepped tooth.

And described code-disc is stamped to form with light screening material, or adopts transparent material and apply light shield layer in the above and make.

Advantage of the present utility model and beneficial effect are:

1, this The Cloud Terrace positioner is to be the The Cloud Terrace location by being installed in code-disc, photoelectricity coupling position transducer on the motor reel, to motor types without limits, can use cheap synchronous motor, therefore can reduce equipment cost effectively.

2, the code-disc of this The Cloud Terrace positioner is installed on the motor reel and rotates with speed with motor, revolution is crossed the angle that the corresponding The Cloud Terrace axle of shape tooth adorned: 360 °/(gearratio of the code-disc shape number of teeth * motor and The Cloud Terrace axle), because shape number of teeth amount is more, and the gearratio of motor and The Cloud Terrace axle is bigger, so this The Cloud Terrace positioner precision is higher.

3, the utility model highly versatile, wide accommodation, system cost is lower, has the characteristics convenient, that control circuit is simple, positioning accuracy is high that realize; Use the photoelectricity transforming principle simultaneously, average life span can be more than several ten thousand hours, and antijamming capability is strong, the reliability height.

Description of drawings

Fig. 1 is the front view of the utility model embodiment 1;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the front view of the utility model embodiment 2;

Fig. 4 is the A place partial enlarged drawing of Fig. 3.

Embodiment

The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection range of the present utility model with this.

Embodiment 1:

As shown in Figure 1 and Figure 2, a kind of The Cloud Terrace positioner, constitute by being installed on the motor 5 on the support upper surface 10, electric motor driven The Cloud Terrace axle 6 and control circuit, free end at motor reel 2 is coaxially installed with one at the uniform code-disc 1 that is shaped on shape tooth 11 of its periphery, support upper surface in the shape tooth exterior rim position of this code-disc is equipped with a photoelectricity coupling position transducer 8, the shape tooth of this code-disc can be that rectangular teeth also can be a stepped tooth, and code-disc in an embodiment is a rectangular teeth; This photoelectricity coupling position transducer installs with the support upper surface by a position transducer strutting piece 9.This photoelectricity coupling position transducer is made up of light-emitting diode and phototriode, and its light-emitting diode and phototriode lay respectively at the both sides of code-disc.Shape tooth on the code-disc can alternately block the light that light-emitting diode sends in the process of rotation, therefore, phototriode receives the light that occurs at interval and produces electric impulse signal, and this electric impulse signal is transferred into control circuit.

The Cloud Terrace axle top radially installs one and has the plectrum 4 that is converted into 90 degree, is fixed with the photoelectricity coupling reseting sensor 3 of this plectrum of induction on The Cloud Terrace base 12, and this electric coupling reseting sensor also is made up of light-emitting diode and phototriode; Photoelectricity coupling reseting sensor installs by reseting sensor strutting piece 7 and The Cloud Terrace base.When The Cloud Terrace rotates a whole circle, plectrum forwards between light-emitting diode and the phototriode, the light that light-emitting diode sends is blocked by plectrum, phototriode loses illumination, produce an electric impulse signal, this pulse signal is delivered to control circuit, makes the counter reset of the record The Cloud Terrace position in the control circuit, and the The Cloud Terrace position is counted again.

Described plectrum can also use the plectrum of other shapes, and this plectrum is installed on the appropriate location on the The Cloud Terrace axle; Photoelectricity coupling reseting sensor also can adopt other mounting meanss to be installed in the The Cloud Terrace appropriate location, can respond to as long as satisfy photoelectricity coupling reseting sensor.

Described code-disc can use light screening material to be stamped to form, and also can adopt transparent material and apply light shield layer in the above and make.

Embodiment 2:

Its structure is substantially the same manner as Example 1, and difference is that the code-disc that is adopted is to use two mutual closed assemblies of code-disc that are shaped on the shape tooth to constitute, and promptly code-disc is made of preceding code-disc 13 and back code-disc 14, and the shape tooth of each code-disc evenly staggers mutually.

Claims

1. The Cloud Terrace positioner, constitute by the motor that is installed on support, electric motor driven The Cloud Terrace axle and control circuit, it is characterized in that: be coaxially installed with at the uniform code-disc that is shaped on the shape tooth of its periphery at the free end of motor reel, one photoelectricity coupling position transducer be installed in the support upper surface of the shape tooth exterior rim position of this code-disc; On the The Cloud Terrace axle, be fixed with a plectrum, on the The Cloud Terrace base, be fixed with the photoelectricity coupling reseting sensor of this plectrum of induction.

2. The Cloud Terrace positioner according to claim 1 is characterized in that: described code-disc be at least two and mutually closed assembly constitute, each code-disc behind closed assembly its shape tooth for evenly staggering mutually.

3. The Cloud Terrace positioner according to claim 1 and 2 is characterized in that: the shape tooth of described code-disc is a rectangular teeth, or stepped tooth.

4 The Cloud Terrace positioners according to claim 1 and 2, it is characterized in that: described code-disc is stamped to form with light screening material, or adopts transparent material and apply light shield layer in the above and make.