CN108471271A - A kind of projecting apparatus slide motor control method and control device - Google Patents

A kind of projecting apparatus slide motor control method and control device Download PDF

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Publication number
CN108471271A
CN108471271A CN201810335596.9A CN201810335596A CN108471271A CN 108471271 A CN108471271 A CN 108471271A CN 201810335596 A CN201810335596 A CN 201810335596A CN 108471271 A CN108471271 A CN 108471271A
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CN
China
Prior art keywords
temperature
slide
relation table
motor
value
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Granted
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CN201810335596.9A
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Chinese (zh)
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CN108471271B (en
Inventor
钟波
肖适
刘志明
符松
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Chengdu XGIMI Technology Co Ltd
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Chengdu XGIMI Technology Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P31/00Arrangements for regulating or controlling electric motors not provided for in groups H02P1/00 - H02P5/00, H02P7/00 or H02P21/00 - H02P29/00

Abstract

The present invention discloses a kind of projecting apparatus slide motor control method, including:Acquire ambient temperature value;Motor speed value is obtained according to the temperature rotation speed relation table to prestore, or electric machine frequency value is obtained according to the temperature frequency relation table to prestore;It is opened according to motor speed value or electric machine frequency value control slide motor driving slide, or is closed according to motor speed value or electric machine frequency value control slide motor driving slide.The present invention may be implemented to control slide motor according to different temperature dynamics by the temperature rotation speed relation table or temperature frequency relation table that prestore, ensure that projecting apparatus power-operated sliding door at different temperatures can normally-open or closing.

Description

A kind of projecting apparatus slide motor control method and control device
Technical field
The present invention relates to projecting apparatus slide control fields, and in particular to a kind of projecting apparatus slide motor control method and control Device.
Background technology
Projecting apparatus is also known as projector, is a kind of equipment that can be projected image or video on curtain, can be by not With the same computer of interface, DV etc. is connected plays corresponding vision signal, projecting apparatus be now widely used in family, office, There are the different types such as CRT, LCD, DLP in school and public place of entertainment according to working method difference.
The existing projection device with power-operated sliding door, the fixation of slide motor generally use involve torque to drive slide It opens and closes, in the case of different temperatures, the variation of the characteristics such as slide track lubrication oil can cause slide running resistance anxious Increase severely big, involves torque less than resistance suffered by slide to motor occur, cause slide can not normally-open or closing.Therefore, Working out a kind of can have very according to temperature change come the method that opens or closes of dynamic control slide motor driving slide Important meaning.
Invention content
In view of this, the application provides a kind of projecting apparatus slide motor control method, this method is turned by the temperature-to prestore Fast relation table or temperature-frequency relation table may be implemented to control slide motor according to different temperature dynamics, ensure projecting apparatus electricity Dynamic slide at different temperatures can be normally-open or be closed.In order to solve the above technical problems, technical solution provided by the invention It is as follows:
A kind of projecting apparatus slide motor control method, including:
Acquire ambient temperature value;
Motor speed value is obtained according to the temperature to prestore-rotation speed relation table, or is obtained according to the temperature-frequency relation table to prestore To electric machine frequency value;
Opened according to motor speed value or electric machine frequency value control slide motor driving slide, or according to motor speed value or Electric machine frequency value controls slide motor driving slide and closes.
Further, the generation step of the temperature-rotation speed relation table includes:
Temperature-drag relationship table is obtained, wherein temperature is ambient temperature value, and resistance is the resistance suffered by slide sliding total kilometres Power;
It obtains resistance-and involves moment conditions table, wherein involving the output torque that torque is slide motor;Acquisition involves power Square-rotation speed relation table, wherein rotating speed are the steady-state speed of slide motor;
Obtain temperature-rotation speed relation table.
Further, the acquisition temperature-drag relationship table is specially:At different ambient temperatures, it is obtained using thrust meter The resistance suffered by slide sliding total kilometres is taken, temperature-drag relationship table is obtained.
Further, the acquisition temperature-drag relationship table is specially:Respectively under varying environment temperature value, repeatedly adopt At the uniform velocity slide is pushed to open or close with thrust meter, obtains the maximum resistance that slide opens or closes under varying environment temperature value Value, temperature-drag relationship table is worth to according to each ambient temperature value maximum resistance corresponding with the ambient temperature value.
Further, the acquisition resistance-involves moment conditions table and is specially:Surplus coefficient M is set, in varying environment temperature Under angle value, motor is set to involve product of the size equal to resistance and M suffered by slide sliding total kilometres of torque, wherein M > 1 are obtained Moment conditions table is involved to resistance-.
Further, the value of M is 1.5.
Further, the acquisition involves torque-rotation speed relation table and is specially:Make motor operation under different rotating speeds, adopts Torque is involved with torque measuring device acquisition slide motor, obtains involving torque-rotation speed relation table.
Further, the generation step of the temperature-frequency relation table includes:
Obtain temperature-rotation speed relation table;
Temperature-frequency relation table is obtained according to formula (I) and temperature-rotation speed relation table
Wherein, n is motor steady-state speed, and P is motor number of pole-pairs, and f is electric machine frequency.
Further, ambient temperature value is acquired by temperature sensor.
A kind of projecting apparatus slide motor control assembly can in aforementioned manners control projecting apparatus slide motor, packet It includes:
Data acquisition module:For acquiring ambient temperature value;
Data memory module:For the temperature that prestores-rotation speed relation table and/or temperature-frequency relation table;
Data generation module:Relation table for being stored according to the data and data memory module of data collecting module collected Generate corresponding motor speed or electric machine frequency;
Motor drive module:Motor speed or electric machine frequency for being generated according to data generation module control slide motor Driving slide is turned on and off.
The present invention provides a kind of projecting apparatus slide motor control method, passes through the temperature-rotation speed relation table or temperature-to prestore Frequency relation table may be implemented to control slide motor according to different temperature dynamics, ensure projecting apparatus power-operated sliding door in not equality of temperature Degree is lower can normally-open or closing;During obtaining temperature-rotation speed relation table or temperature-frequency relation table, it can obtain Temperature-drag relationship table and torque-rotation speed relation table is involved, is slided as long as ensureing to involve torque under each temperature value to be greater than or equal to Gate resistance power, so that it may to ensure that power-operated sliding door is normally-open or closes;By experiment, the existing projecting apparatus with power-operated sliding door is zero Degree Celsius hereinafter, power-operated sliding door can not open or close, and the projecting apparatus of control slide motor is carried out using the present invention, Power-operated sliding door still switchs normally at subzero ten degrees Celsius;In addition, the present invention is by improving the use environment range of product, it can be with Product reliability is greatly improved, to promote the experience comfort level of user.
Description of the drawings
Fig. 1 is the method flow diagram that embodiment 1 provides.
Fig. 2 is the control device structure diagram that embodiment 2 provides.
Specific implementation mode
It is below in conjunction with the accompanying drawings and specific real in order to make those skilled in the art more fully understand technical scheme of the present invention Applying example, the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, the present embodiment provides a kind of projecting apparatus slide motor control methods, including:
Step S1:Acquire ambient temperature value;
Step S2:Motor speed value is obtained according to the temperature to prestore-rotation speed relation table, or according to the temperature-frequency to prestore Relation table obtains electric machine frequency value;
Step S3:It is opened according to motor speed value or electric machine frequency value control slide motor driving slide, or according to motor Tachometer value or electric machine frequency value control slide motor driving slide are closed.
What needs to be explained here is that temperature-rotation speed relation table and/or temperature-frequency relation table be before step S1 just It generates, is then pre-stored in controller again, when the present embodiment is embodied, can only prestore temperature-rotation speed relation table, Can only be prestored temperature-frequency relation table, and can also prestore temperature-rotation speed relation table and temperature-frequency relation table simultaneously, when same When prestore temperature-rotation speed relation table and temperature-frequency relation table when, specific control mode is (by temperature-rotation speed relation table Corresponding tachometer value drives slide motor to drive slide motor, or by the frequency values in temperature-frequency relation table) it can be with Preset, in operational process can also switching control mode, the present embodiment can by PLC or other with control function Microprocessor realizes control, in addition, temperature-rotation speed relation table and temperature-frequency relation table can also indicate with other forms, Such as coordinate diagram, in practical applications, as long as preparing the correspondence between surface parameter.
Specifically, the generation step of the temperature-rotation speed relation table includes:
Temperature-drag relationship table is obtained, wherein temperature is ambient temperature value, and resistance is the resistance suffered by slide sliding total kilometres Power;
It obtains resistance-and involves moment conditions table, wherein involving the output torque that torque is slide motor;Acquisition involves power Square-rotation speed relation table, wherein rotating speed are the steady-state speed of slide motor;
Obtain temperature-rotation speed relation table.
What needs to be explained here is that in the specific implementation, moment conditions table and torque-rotation speed relation are involved according to resistance- Table obtains resistance-revolution counter, obtains temperature-revolution counter further according to temperature-drag relationship table and resistance-revolution counter, wherein every Under a temperature value, it is big to involve the equal specific resistance of torque, in order to which convenience of calculation can make also for making data relationship have regularity Setting involves torque and the relationship of resistance in this way:Motor is set to lead then under the temperature value if the corresponding resistance of some temperature value is F It is F+F1 to go out torque, or it is F × M so that motor is involved torque, wherein F1 > 0, M > 1, for each temperature value, F1 and M's takes Value is the same.
Preferably, the acquisition temperature-drag relationship table is specially:At different ambient temperatures, it is obtained using thrust meter The resistance suffered by slide sliding total kilometres is taken, temperature-drag relationship table is obtained.
Further, the acquisition temperature-drag relationship table is specially:Respectively under varying environment temperature value, repeatedly At the uniform velocity slide is pushed to open or close using thrust meter, obtains the maximum resistance that slide opens or closes under varying environment temperature value Value, temperature-drag relationship table is worth to according to each ambient temperature value maximum resistance corresponding with the ambient temperature value.
What needs to be explained here is that under each ambient temperature value, 3 times or 3 times or more slide resistances can be carried out It measures, each slide drag measurement is at the uniform velocity slide to be pushed to open or close using thrust meter, and obtain slide and open or close When suffered resistance, then take maximum resistance value as slide the suffered resistance under this ambient temperature value, can ensure to slide in this way Door can be opened or closed normally in corresponding involve of slide motor under torque.
Preferably, the acquisition resistance-involves moment conditions table is specially:Surplus coefficient M is set, in varying environment temperature Under angle value, motor is set to involve product of the size equal to resistance and M suffered by slide sliding total kilometres of torque, wherein M > 1 are obtained Moment conditions table is involved to resistance-.
Preferably, the value of M is 1.5.
What needs to be explained here is that the specific value of surplus coefficient can be specifically arranged according to actual conditions, user is examining When worry, the factors such as track lubrication oil can be considered emphatically.
Preferably, the acquisition involves torque-rotation speed relation table and is specially:Make motor operation under different rotating speeds, adopts Torque is involved with torque measuring device acquisition slide motor, obtains torque-rotation speed relation table.
Specifically, the generation step of the temperature-frequency relation table includes:
Obtain temperature-rotation speed relation table;
Temperature-frequency relation table is obtained according to formula (I) and temperature-rotation speed relation table
Wherein, n is motor steady-state speed, and P is motor number of pole-pairs, and f is electric machine frequency.
When the present embodiment is embodied, ambient temperature value can be acquired by temperature sensor.
Embodiment 2
As shown in Fig. 2, the present embodiment provides a kind of projecting apparatus slide motor control assembly, embodiment 1 can be used to provide Control method controls projecting apparatus slide motor, including
Data acquisition module:For acquiring ambient temperature value;
Data memory module:For the temperature that prestores-rotation speed relation table and/or temperature-frequency relation table;
Data generation module:Relation table for being stored according to the data and data memory module of data collecting module collected Generate corresponding motor speed or electric machine frequency;
Motor drive module:Motor speed or electric machine frequency for being generated according to data generation module control slide motor Driving slide is turned on and off.
It the above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair The limitation of the present invention, protection scope of the present invention should be subject to claim limited range.For the art For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change Protection scope of the present invention is also should be regarded as into retouching.

Claims (10)

1. a kind of projecting apparatus slide motor control method, which is characterized in that including:
Acquire ambient temperature value;
Motor speed value is obtained according to the temperature to prestore-rotation speed relation table, or electricity is obtained according to the temperature-frequency relation table to prestore Unit frequency value;
It is opened according to motor speed value or electric machine frequency value control slide motor driving slide, or according to motor speed value or motor Frequency values control slide motor driving slide and close.
2. a kind of projecting apparatus slide motor control method according to claim 1, which is characterized in that the temperature-rotating speed The generation step of relation table includes:
Temperature-drag relationship table is obtained, wherein temperature is ambient temperature value, and resistance is the resistance suffered by slide sliding total kilometres;
It obtains resistance-and involves moment conditions table, wherein involving the output torque that torque is slide motor;Acquisition involves torque-and turns Fast relation table, wherein rotating speed are the steady-state speed of slide motor;
Moment conditions table, which is involved, according to temperature-drag relationship table, resistance-and involves torque-rotation speed relation table obtains temperature-rotating speed Relation table.
3. a kind of projecting apparatus slide motor control method according to claim 2, which is characterized in that the acquisition temperature- Drag relationship table is specially:At different ambient temperatures, the resistance suffered by slide sliding total kilometres is obtained using thrust meter, obtained Temperature-drag relationship table.
4. a kind of projecting apparatus slide motor control method according to claim 3, which is characterized in that the acquisition temperature- Drag relationship table is specially:Respectively under varying environment temperature value, thrust meter is employed many times and at the uniform velocity slide is pushed to open or close, The maximum resistance value that slide under varying environment temperature value opens or closes is obtained, according to each ambient temperature value and the environment temperature It is worth corresponding maximum resistance and is worth to temperature-drag relationship table.
5. a kind of projecting apparatus slide motor control method according to claim 2, which is characterized in that the acquisition resistance- Involving moment conditions table is specially:Setting surplus coefficient M makes motor involve size of torque etc. under varying environment temperature value The product of resistance and M suffered by slide sliding total kilometres, wherein M > 1 obtain resistance-and involve moment conditions table.
6. a kind of projecting apparatus slide motor control method according to claim 5, which is characterized in that the value of M is 1.5.
7. a kind of projecting apparatus slide motor control method according to claim 2, which is characterized in that the acquisition involves power Square-rotation speed relation table is specially:Make motor operation under different rotating speeds, involving for slide motor is obtained using torque measuring device Torque obtains involving torque-rotation speed relation table.
8. a kind of projecting apparatus slide motor control method according to claim 1, which is characterized in that the temperature-frequency The generation step of relation table includes:
Obtain temperature-rotation speed relation table;
Temperature-frequency relation table is obtained according to formula (I) and temperature-rotation speed relation table
Wherein, n is motor steady-state speed, and P is motor number of pole-pairs, and f is electric machine frequency.
9. a kind of projecting apparatus slide motor control method according to claim 1, which is characterized in that pass through temperature sensor Acquire ambient temperature value.
10. a kind of projecting apparatus slide motor control assembly, which is characterized in that including
Data acquisition module:Data control block is sent to for acquiring ambient temperature value, and by collected ambient temperature value;
Data memory module:For the temperature that prestores-rotation speed relation table and/or temperature-frequency relation table;
Data generation module:Relation table for being stored according to the data and data memory module of data collecting module collected generates Corresponding motor speed or electric machine frequency;
Motor drive module:Motor speed for being generated according to data generation module or electric machine frequency control slide motor driving Slide is turned on and off.
CN201810335596.9A 2018-04-16 2018-04-16 Projector sliding door motor control method and control device Active CN108471271B (en)

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Application Number Priority Date Filing Date Title
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CN110958336A (en) * 2019-11-20 2020-04-03 维沃移动通信有限公司 Method and electronic device for controlling motor in telescopic CCM
CN113866635A (en) * 2021-12-01 2021-12-31 山东蓝湾新材料有限公司 Method for determining motor fault occurrence time in chemical equipment

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