A zero-finding method of incremental encoder through image area code
An incremental encoder and encoder technology, applied in the direction of using feedback control, etc., can solve the problems of increased volume, weight, cost, and low reliability of zero-seeking of the mechanism, so as to simplify the structural design of the mechanism, increase the reliability, cost reduction effect
Active Publication Date: 2021-07-09
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
View PDF12 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In order to solve the problem that the existing encoder homing requires the use of external sensors, resulting in increased volume, weight, and cost of the mechanism, and the traditional homing method only performs homing once, and the reliability of homing is not high. The present invention provides a The design and assembly method of the recording position of the encoder image area code, and the corresponding zero-seeking control algorithm are proposed at the same time
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:
[0033] A homing method by an incremental encoder with an image area code, specifically comprising the following steps:
[0034] The first step is to select a suitable encoder with an image area code according to the limit range of the mechanism, and perform correct assembly;
[0035] The encoders are not limited to photoelectric encoders, but also magnetic encoders; not limited to relative encoders, but also quasi-absolute encoders; and not limited to circular encoders, but also strip encoders. It is characterized in that the image area code recorded by the selected encoder can at least divide the entire circumference into 4 areas, and the encoder such as figure 1 As shown (if it is used for a strip encoder, the strip encoder can be bent into a circular encoder by analogy, and the corresponding partitions are made), in which the second code area has at least one...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a homing method of an incremental encoder through an image area code. According to the limit range of the mechanism, an appropriate encoder with an image area code is selected and assembled correctly. After the homing starts, first pass the code The disk reading head reads the image code area where the current mechanism is located, and assigns the current image area code value to the image area code variable; at the same time, it starts the overtime counter and enters the circular homing mode. When the homing ends, the motors stop Rotate and report the homing results to the system. This method is not limited by the initial position of the mechanism, and the homing time is short. Under normal circumstances, the encoder and motor are successful in one homing. If the mechanism fails or the code track of the encoder is damaged, the homing can be repeated multiple times to ensure the homing At the same time, it avoids the impact damage to the motor and mechanism caused by the traditional homing method.
Description
technical field [0001] The invention is applied to a limited rotation angle high-reliability servo system, and in particular relates to a zero-seeking method of an incremental encoder through an image area code. Background technique [0002] The invention relates to a zero-seeking method of an incremental encoder through an image area code. The mechanism described here mainly refers to systems with high reliability and stability requirements applied to airborne or missile-borne photoelectric servos. Limited by the product cost and the manufacturing process of localized encoders, the rotary mechanism of the airborne photoelectric servo system mostly uses incremental encoders or quasi-absolute encoders. Add a limit sensor at the end, and use the limit sensor and motor stall as the main reference for homing. In this homing method, the area where the mechanism is located is not clear during the homing process, and the homing efficiency is low, and it is easy to collide with the...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G05D3/12
CPCG05D3/12
Inventor 王建刚韩文斌路向明高军科
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC