CN110474417B - Power supply system of encoder - Google Patents
Power supply system of encoder Download PDFInfo
- Publication number
- CN110474417B CN110474417B CN201910650301.1A CN201910650301A CN110474417B CN 110474417 B CN110474417 B CN 110474417B CN 201910650301 A CN201910650301 A CN 201910650301A CN 110474417 B CN110474417 B CN 110474417B
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- power supply
- encoder
- voltage
- circuit
- supply system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
- G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/40—Testing power supplies
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
Abstract
The invention provides a power supply system of an encoder, which provides working voltage for the encoder by a preset power supply strategy, realizes the balance and optimization of the direct power supply of a solar cell panel to the encoder and the charging and energy storage of a storage battery, and omits the process from charging to discharging in the process of directly supplying power to the encoder.
Description
Technical Field
The invention relates to a power supply system of an encoder, in particular to a power supply system of an encoder based on solar energy.
Background
The photoelectric encoder is an angle measuring device integrating optics, mechanics and electricity, and converts optical signals into electric signals through a mechanical structure and a signal processing circuit, so that direct or indirect measurement of various physical quantities such as angular displacement, speed and position is realized.
In photoelectric encoder, the driver need supply power in order to record many circles data through outside battery when the outage, and most encoders count many circles and be the dry battery power supply at present, use the dry battery just must face the problem that needs regularly to detect, change maintenance and degradation difficult polluted environment. With the improvement of the industrial automation degree, the energy waste becomes the primary problem of resource waste, people gradually pay attention to the problem of renewable energy utilization, solar energy is regarded as mainstream renewable energy and has been widely paid attention for a long time, and how to combine solar energy with industrial production becomes an industrial problem.
In order to solve the above problems, patent CN201010572916.6 proposes a concept of solar power supply, but the patent also solves a series of technical problems such as how to improve power supply efficiency and power supply reliability.
Therefore, in a power supply system which adopts solar energy to supply power to an encoder, how to enable the power supply system to ensure the reliability of power supply and have higher energy utilization rate is a technical problem which needs to be solved at present.
Disclosure of Invention
The invention aims to provide a power supply system of an encoder, which is reliable in power supply and high in energy utilization rate. In order to achieve the purpose of the invention, the following technical scheme is provided.
The utility model provides a power supply system of encoder, power supply system passes through solar cell panel input mains voltage, power supply system provides operating voltage for the encoder, power supply system includes control circuit.
The control circuit is configured to:
and controlling the power supply system to provide working voltage for the encoder according to the value of the power supply voltage by using a preset power supply strategy.
The power supply system also comprises a power supply circuit, a voltage detection circuit, a charging circuit and a storage battery, wherein the voltage detection circuit is used for detecting the value of the power supply voltage; the charging circuit is used for charging the storage battery; the battery outputs a battery voltage.
The preset control strategy comprises the following steps:
when the value of the power supply voltage detected by the voltage detection circuit is a first preset value, controlling the power supply circuit to select the power supply voltage as a working voltage and controlling the charging circuit to charge a storage battery;
when the value of the power supply voltage detected by the voltage detection circuit is a second preset value, controlling the power supply circuit to select the power supply voltage as a working voltage, and controlling the charging circuit to stop charging a storage battery;
and when the value of the power supply voltage detected by the voltage detection circuit is a third preset value, controlling the power supply circuit to select the battery voltage as a working voltage, and controlling the charging circuit to charge the storage battery.
Preferably, the first preset value is greater than the second preset value, and the second preset value is greater than the third preset value.
The encoder is provided with a sleep state and a working state, and the encoder is switched between the sleep state and the working state according to a preset energy-saving strategy.
The preset energy-saving strategy comprises the following steps: when the rotating speed of the encoder is 0, the encoder enters a sleep state; after sleeping for a certain time, waking up from a sleeping state and entering a working state; and judging whether the rotating speed of the encoder is still 0, and if so, entering a dormant state.
Wherein the encoder in the sleep state has a lower current than the encoder in the active state.
The power supply system further comprises a voltage stabilizing circuit, and the output voltage of the solar cell panel is stabilized by the voltage stabilizing circuit and then outputs the power supply voltage.
When the encoder works normally, the power is supplied by the driver; when the driver is powered down, the power supply system provides working voltage for the encoder.
Preferably, the encoder is a multi-turn encoder.
The power supply system of the encoder has the beneficial technical effects that the power supply system provides working voltage for the encoder by using the preset power supply strategy, so that the balance and optimization of the direct power supply of the encoder by the solar cell panel and the charging and energy storage of the storage battery are realized, wherein the process from charging to discharging is omitted in the process of directly supplying power to the encoder, and the power supply system not only ensures the reliability of power supply, but also has higher energy utilization rate.
Drawings
Fig. 1 is a schematic diagram of the power supply system of the present invention.
Fig. 2 is a schematic diagram of the preset energy saving strategy of the present invention.
Detailed Description
As shown in fig. 1, the power supply system of an encoder of the present invention inputs a power supply voltage through a solar panel, provides a working voltage for the encoder, and includes a control circuit.
Wherein the control circuit is configured to:
and controlling the power supply system to provide working voltage for the encoder according to the value of the power supply voltage by using a preset power supply strategy.
The power supply system also comprises a power supply circuit, a voltage detection circuit, a charging circuit and a storage battery, wherein the voltage detection circuit is used for detecting the value of the power supply voltage; the charging circuit is used for charging the storage battery; the battery outputs a battery voltage.
When the driver is powered down, the solar cell panel is used for absorbing illumination and converting the illumination into electric energy, and the voltage output by the voltage stabilizing circuit is expressed by power supply voltage. When the voltage detection module detects that the power supply voltage is H, the control circuit controls the power supply voltage to be directly used as the working voltage of the encoder, and meanwhile, the control circuit starts the charging circuit to charge the storage battery; when the voltage detection module detects that the conversion voltage is M, the control circuit cuts off the charging circuit, stops charging the storage battery and only ensures that power is supplied to the encoder; when the voltage detection module detects that the conversion voltage is L, the control circuit controls the multi-circle power supply to obtain the power supply voltage from the storage battery, and the stability of the multi-circle power supply of the encoder is ensured. The invention can solve the problem of frequent maintenance of the dry battery of the photoelectric encoder during regular replacement and can also reduce the problem of environmental pollution caused by the fact that the waste dry battery cannot be rapidly degraded.
As a preferred embodiment, the preset control strategy includes:
when the value of the power supply voltage detected by the voltage detection circuit is a first preset value, controlling the power supply circuit to select the power supply voltage as a working voltage and controlling the charging circuit to charge a storage battery;
when the value of the power supply voltage detected by the voltage detection circuit is a second preset value, controlling the power supply circuit to select the power supply voltage as a working voltage, and controlling the charging circuit to stop charging a storage battery;
and when the value of the power supply voltage detected by the voltage detection circuit is a third preset value, controlling the power supply circuit to select the battery voltage as a working voltage, and controlling the charging circuit to charge the storage battery.
As a preferred embodiment, the first preset value is greater than the second preset value, and the second preset value is greater than the third preset value.
As shown in fig. 2, the encoder has a sleep state and an operating state, and the encoder switches between the sleep state and the operating state according to a preset power saving strategy. Wherein the encoder in the sleep state has a lower current than the encoder in the active state.
The encoder is characterized in that the rotation angle of the encoder is 0-360 degrees and is a single turn, and the encoder is a plurality of turns when the rotation angle is more than 360 degrees; the energy-saving control system comprises a microprocessor, a speed detection unit and a current output unit, the multi-turn power supply unit plays a role only when the system is powered off, and the main purpose is to record the position change of the system caused by external force, so that the microprocessor can be used for realizing the energy-saving output of the multi-turn power supply system. When the speed detection module detects that the rotating speed of the encoder is 0, the microprocessor controls the current output module to reduce the current output of the system and then enters a dormant state; after a certain time T is delayed, the microprocessor is recovered to a normal working state from a dormant state, and the current output is recovered to a normal state, so that whether the position of the encoder changes or not and the rotating speed is judged; if the rotating speed is still zero, repeating the sleep operation; the energy-saving output of the multi-turn power supply system of the encoder is realized, and the reliability of power supply is improved.
As a preferred embodiment, the preset energy-saving strategy includes: when the rotating speed of the encoder is 0, the encoder enters a sleep state; after sleeping for a certain time, waking up from a sleeping state and entering a working state; and judging whether the rotating speed of the encoder is still 0, and if so, entering a dormant state.
As a preferred embodiment, the power supply system further includes a voltage stabilizing circuit, and the output voltage of the solar cell panel is stabilized by the voltage stabilizing circuit and then outputs the power supply voltage.
In a preferred embodiment, the encoder is powered by the driver during normal operation; when the driver is powered down, the power supply system provides working voltage for the encoder.
As a preferred embodiment, the encoder is a multi-turn encoder.
The above-mentioned embodiments are only used for understanding the technical solutions of the present invention, and should not be construed as limiting the scope of the present invention. It should be noted that variations to those skilled in the art may be made without departing from the spirit of the invention, and these are within the scope of the invention.
Claims (4)
1. A power supply system of an encoder inputs power supply voltage through a solar panel and provides working voltage for the encoder,
the power supply system includes a control circuit configured to:
controlling the power supply system to provide working voltage for the encoder according to a preset power supply strategy according to the value of the power supply voltage,
the power supply system also comprises a power supply circuit, a voltage detection circuit, a charging circuit and a storage battery, wherein the voltage detection circuit is used for detecting the value of the power supply voltage; the charging circuit is used for charging the storage battery; the storage battery outputs a battery voltage;
the preset power supply strategy comprises the following steps:
when the value of the power supply voltage is a first preset value, controlling the power supply circuit to select the power supply voltage as a working voltage, and controlling the charging circuit to charge a storage battery;
when the value of the power supply voltage is a second preset value, controlling the power supply circuit to select the power supply voltage as a working voltage, and controlling the charging circuit to stop charging the storage battery;
when the value of the power supply voltage is a third preset value, the power supply circuit is controlled to select the battery voltage as a working voltage, and the charging circuit is controlled to charge a storage battery,
the encoder is provided with a sleep state and a working state, the encoder is switched between the sleep state and the working state according to a preset energy-saving strategy,
the preset energy-saving strategy comprises the following steps: when the rotating speed of the encoder is 0, the encoder enters a sleep state; after sleeping for a certain time, waking up from a sleeping state and entering a working state; judging whether the rotation speed of the encoder is still 0, if so, entering a sleep state,
when the encoder works normally, the power is supplied by the driver; when the driver is powered down, the power supply system provides working voltage for the encoder.
2. The power supply system of claim 1, wherein the encoder in a sleep state has a lower current than the encoder in an active state.
3. The power supply system according to claim 1 or 2, further comprising a voltage stabilizing circuit, wherein the output voltage of the solar cell panel is stabilized by the voltage stabilizing circuit and then outputs the power supply voltage.
4. The power supply system of claim 1 or 2, wherein the encoder is a multi-turn encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910650301.1A CN110474417B (en) | 2019-07-18 | 2019-07-18 | Power supply system of encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910650301.1A CN110474417B (en) | 2019-07-18 | 2019-07-18 | Power supply system of encoder |
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| Publication Number | Publication Date |
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| CN110474417A CN110474417A (en) | 2019-11-19 |
| CN110474417B true CN110474417B (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910650301.1A Active CN110474417B (en) | 2019-07-18 | 2019-07-18 | Power supply system of encoder |
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Citations (4)
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| JPS5968026A (en) * | 1982-10-13 | 1984-04-17 | Fuji Electric Co Ltd | Solar light electric power generating device |
| CN200987080Y (en) * | 2006-09-29 | 2007-12-05 | 郑州市联合能源电子有限公司 | Solar energy notebook computer power supply device |
| CN201970876U (en) * | 2010-12-29 | 2011-09-14 | 上海汽车集团股份有限公司 | Automobile lighting power supply |
| CN102593936A (en) * | 2012-02-20 | 2012-07-18 | 海尔集团公司 | Solar energy and mains supply complementary refrigeration power supply system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3911916A1 (en) * | 1988-10-26 | 1990-05-10 | Telefunken Systemtechnik | Automatic road sign traffic recognition method - transmitting corresp. signal from sign for reception driver console after evaluation |
| CN101697429B (en) * | 2009-09-22 | 2012-05-09 | 林肯电梯(中国)有限公司 | Micro power consumption elevator |
| CN106131936A (en) * | 2016-03-23 | 2016-11-16 | 安徽京师方圆信息技术有限公司 | Solar powered low-power consumption field detection device |
| CN106054835A (en) * | 2016-06-21 | 2016-10-26 | 苏州迈奇杰智能技术有限公司 | Intelligent haze preventing device based on artificial intelligent control of microprocessor |
| CN106078740A (en) * | 2016-06-21 | 2016-11-09 | 苏州迈奇杰智能技术有限公司 | A kind of control to go haze to may move system based on LIFI long-range CCD robot |
| CN108037678A (en) * | 2017-11-16 | 2018-05-15 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of servo drive system and its control method |
| CN108756621A (en) * | 2018-08-21 | 2018-11-06 | 深圳市桐耀智能门窗科技工程有限公司 | A kind of intelligent door and window |
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- 2019-07-18 CN CN201910650301.1A patent/CN110474417B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5968026A (en) * | 1982-10-13 | 1984-04-17 | Fuji Electric Co Ltd | Solar light electric power generating device |
| CN200987080Y (en) * | 2006-09-29 | 2007-12-05 | 郑州市联合能源电子有限公司 | Solar energy notebook computer power supply device |
| CN201970876U (en) * | 2010-12-29 | 2011-09-14 | 上海汽车集团股份有限公司 | Automobile lighting power supply |
| CN102593936A (en) * | 2012-02-20 | 2012-07-18 | 海尔集团公司 | Solar energy and mains supply complementary refrigeration power supply system |
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| CN110474417A (en) | 2019-11-19 |
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