CN201018469Y - Stroke protective circuit of precision moving platform - Google Patents

Stroke protective circuit of precision moving platform Download PDF

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Publication number
CN201018469Y
CN201018469Y CNU2006201752567U CN200620175256U CN201018469Y CN 201018469 Y CN201018469 Y CN 201018469Y CN U2006201752567 U CNU2006201752567 U CN U2006201752567U CN 200620175256 U CN200620175256 U CN 200620175256U CN 201018469 Y CN201018469 Y CN 201018469Y
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CN
China
Prior art keywords
microprocessor
platform
protective circuit
stroke
mobile platform
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CNU2006201752567U
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Chinese (zh)
Inventor
徐一华
杨聪
徐庆华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Tian Zhun Science and Technology Co., Ltd.
Original Assignee
BEIJING TZTEK TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CNU2006201752567U priority Critical patent/CN201018469Y/en
Application granted granted Critical
Publication of CN201018469Y publication Critical patent/CN201018469Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

A moving range protection circuit for high-precision mobile platforms comprises microprocessor moving range protection and direct moving range protection. Wherein, the direct moving range protection takes a photoelectric limit switch signal and a microprocessor direction control signal as input signals and outputs a stop signal to directly control the mobile platform, thus ensuring safety mobile platform stop and preventing accident while the high-precision mobile platform exceeds a limit position and despite the microprocessor undergoes a failure.

Description

A kind of stroke protective circuit of precise mobile platform
Affiliated technical field
The utility model relates to a kind of stroke protective circuit of precise mobile platform, especially uses microprocessor control motor to realize the stroke protective circuit of precise mobile platform.
Background technology
Existing precise mobile platform normally adopts microprocessor control motor to drive.Because microprocessor is powerful, the stroke protection of motion platform also is to be realized by it usually.After platform motion exceeded the maximum the position, photoelectric limit switch sent limit signal, and microprocessor is handled this signal, sent the platform halt instruction, and platform is slowed down fast, and safety stops.Therefore, if want platform when exceeding the maximum the position, can reliably stop, must guaranteeing that microprocessor work is normal at this moment, otherwise will have an accident.Because the ubiquity of electromagnetic interference will guarantee that it almost is impossible that microprocessor is in normal operating conditions in the electromechanical equipment always.
Summary of the invention
In order to overcome the deficiency of existing precise mobile platform in the stroke protection; the utility model provides a kind of stroke protective circuit of precise mobile platform; guaranteed under platform motion exceeds the maximum the situation of position; even microprocessor is in malfunction; also can guarantee stopping of platform energy safety, avoid the generation of accident.
To achieve these goals, the utility model is taked following technical scheme:
On existing precise mobile platform stroke protected mode; increase by a direct stroke protective circuit; when having limit signal to occur; do not rely on microprocessor; directly the stroke protective circuit only allows platform toward opposite direction motion; can not continue towards original direction motion, thereby the stroke of reliably realizing precise mobile platform is protected.
Directly the operation principle of stroke protective circuit is as follows:
At the platform positive movement during to extreme position; the forward photoelectric limit switch sends signal, this signal and platform direction of motion signal with, will produce the effective platform stop signal; even guaranteed that this moment, microprocessor did not send stop signal, this protective circuit also can be sent stop signal.On the other hand, directly the stroke protective circuit play forbid the platform positive movement in, in the time of can also guaranteeing that microprocessor sends in the other direction motion command, platform can move reliably in the other direction.
When the platform counter motion, oppositely photoelectric limit switch participates in control, and basically identical when direct stroke protective circuit work principle and platform positive movement is just to judging after the negate of platform motion direction signal again.
The beneficial effects of the utility model are, even can guarantee that precise mobile platform also can safe operation under rugged environment, avoid the generation of accident.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the common stroke protection scheme schematic diagram that has only microprocessor control.
Fig. 2 is the schematic diagram of direct stroke protective circuit among the utility model embodiment.
Primary structure is among the figure: 1-microprocessor, 2-forward photoelectric limit switch, the reverse photoelectric limit switch of 3-, 4-platform driver module, the direct stroke protective circuit of 5-, 6-or door, 7-and door, 8-and door.
Embodiment
Below in conjunction with accompanying drawing preferred implementation of the present utility model is elaborated:
Under common operating state, forward photoelectric limit switch (2) is output as high level, when the extreme position of forward is arrived in platform motion, platform will produce the forward photoelectric limit switch and block, and make the limit switch output low level, and then cause and door (7) generation high level, therefore, even this moment, microprocessor was in malfunction, or door (6) also can produce effective stop signal, makes the platform stop motion.
On the other hand, if this moment, microprocessor was in normal operating conditions, can send the heterodromous instruction of platform, though this moment forward photoelectric limit switch output low level, but because the platform direction control signal of microprocessor is a low level, cause with door (7) be output as low, therefore or door (6) can not produce stop signal, make microprocessor platform can be included in the normal motion control state.
In like manner, the stroke during the platform counter motion also can obtain reliable protection under the control of direct stroke protective circuit.

Claims (2)

1. the stroke protective circuit of a precise mobile platform has photoelectric limit switch and microprocessor, it is characterized in that: this circuit has direct stroke protective circuit.
2. direct stroke protective circuit according to claim 1 is characterized in that: directly the stroke protective circuit is input with photoelectric limit switch signal and microprocessor direction control signal, and output is the stop signal of controlling platform directly.
CNU2006201752567U 2006-12-25 2006-12-25 Stroke protective circuit of precision moving platform Expired - Lifetime CN201018469Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2006201752567U CN201018469Y (en) 2006-12-25 2006-12-25 Stroke protective circuit of precision moving platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2006201752567U CN201018469Y (en) 2006-12-25 2006-12-25 Stroke protective circuit of precision moving platform

Publications (1)

Publication Number Publication Date
CN201018469Y true CN201018469Y (en) 2008-02-06

Family

ID=39058969

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2006201752567U Expired - Lifetime CN201018469Y (en) 2006-12-25 2006-12-25 Stroke protective circuit of precision moving platform

Country Status (1)

Country Link
CN (1) CN201018469Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102904513A (en) * 2012-09-27 2013-01-30 中国科学院长春光学精密机械与物理研究所 Processing method of spacing switch signals in control system driven by stepping motor
CN112073626A (en) * 2019-06-10 2020-12-11 海信视像科技股份有限公司 Motor control circuit, driving device and display device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102904513A (en) * 2012-09-27 2013-01-30 中国科学院长春光学精密机械与物理研究所 Processing method of spacing switch signals in control system driven by stepping motor
CN102904513B (en) * 2012-09-27 2015-04-22 中国科学院长春光学精密机械与物理研究所 Processing method of spacing switch signals in control system driven by stepping motor
CN112073626A (en) * 2019-06-10 2020-12-11 海信视像科技股份有限公司 Motor control circuit, driving device and display device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: XU YIHUA

Free format text: FORMER OWNER: BEIJING TIANZHUN TECHNOLOGY CO., LTD.

Effective date: 20090904

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20090904

Address after: International Education Exchange building, No. 66 West Third Ring Road, Beijing, Haidian District, 408, postcode: 100081

Patentee after: Xu Yihua

Address before: Room 25, building 5, 100-4 South Avenue, Beijing, Haidian District, Zhongguancun: 100081

Patentee before: Beijing TZTEK Technology Co., Ltd.

ASS Succession or assignment of patent right

Owner name: SUZHOU TIANZHUN PRECISION TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: XU YIHUA

Effective date: 20091211

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20091211

Address after: Suzhou Zhujianglu Road (Yuen junctions) No. 1 Chinese CEPREI floor 3, zip code: 215011

Patentee after: Suzhou Tianhuai Precision Technology Co., Ltd.

Address before: International Education Exchange building, No. 66 West Third Ring Road, Beijing, Haidian District, 408, postcode: 100081

Patentee before: Xu Yihua

C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: 215163 high tech Zone of Suzhou science and Technology City Peiyuan Road No. 5

Patentee after: Suzhou Tianhuai Precision Technology Co., Ltd.

Address before: 215011 Suzhou (Zhujianglu Road No. 1 Chuk Yuen Road) Chinese CEPREI floor 3

Patentee before: Suzhou Tianhuai Precision Technology Co., Ltd.

C56 Change in the name or address of the patentee

Owner name: SUZHOU TZTEK TECHNOLOGY CO., LTD.

Free format text: FORMER NAME: SUZHOU TIANHUAI PRECISION TECHNOLOGY CO., LTD.

CP03 Change of name, title or address

Address after: 215163 Jiangsu hi tech Zone of Suzhou science and technology city eswell Road No. 5

Patentee after: Suzhou Tian Zhun Science and Technology Co., Ltd.

Address before: Science and Technology City high tech Zone of Suzhou City, Jiangsu province 215163 eswell Road No. 5

Patentee before: Suzhou Tianhuai Precision Technology Co., Ltd.

CX01 Expiry of patent term

Granted publication date: 20080206

EXPY Termination of patent right or utility model