CN109298664B - Electric push rod control device and furniture - Google Patents
Electric push rod control device and furniture Download PDFInfo
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- CN109298664B CN109298664B CN201811294943.4A CN201811294943A CN109298664B CN 109298664 B CN109298664 B CN 109298664B CN 201811294943 A CN201811294943 A CN 201811294943A CN 109298664 B CN109298664 B CN 109298664B
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- relay
- control
- push rod
- electric push
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25314—Modular structure, modules
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electronic Switches (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention provides an electric push rod control device and furniture, comprising: the device comprises an alternating current relay control circuit (1), an electric push rod control circuit (2), an electric push rod control interface circuit (3) and a laser radar signal receiving and judging circuit (4); the electric push rod control circuit (2) controls the action of the electric push rod through the electric push rod control interface circuit (3) according to the input signal. The invention solves the connection of common household switches and the connection of household switches of the Internet of things by adopting the structure of the alternating current relay circuit. The invention solves the problem that the electric forward turning bed or side turning bed product can not be actively stopped after meeting obstacles (children, old people and pets) by adopting a structure of the laser radar and the controller.
Description
Technical Field
The invention relates to the field of electric push rod control, in particular to an electric push rod control device and furniture.
Background
In the prior art, the electric push rod controller is mostly controlled by a 433M remote controller. Although the operation of the mode has certain convenience, the defects that on one hand, the common household 220V switch cannot be connected externally, and on the other hand, the Internet of things products on the market cannot be directly connected with the other party. When in operation, the electric push rod can not stop due to the obstacle, thereby causing unnecessary damage.
Disclosure of Invention
In view of the defects in the prior art, the invention aims to provide an electric push rod control device.
According to the present invention, there is provided an electric putter control device comprising: the device comprises an alternating current relay control circuit 1, an electric push rod control circuit 2, an electric push rod control interface circuit 3 and a laser radar signal receiving and judging circuit 4;
the output of the alternating current relay control circuit 1 is connected with the input of the electric push rod control circuit 2, the output of the electric push rod control circuit 2 is connected with the input of the electric push rod control interface circuit 3, and the output of the laser radar signal receiving and judging circuit 4 is connected with the input of the electric push rod control circuit 2.
The electric push rod control circuit 2 controls the action of the electric push rod through the electric push rod control interface circuit 3 according to the input signal.
Preferably, the ac relay control circuit 1 includes: an ac relay K1, an ac relay K2;
the alternating current relay K1 and the alternating current relay K2 both comprise an alternating current coil and a single-pole double-throw switch; the single-pole double-throw switch comprises a common contact and a normally open contact;
the common contact of the alternating current relay K1 and the common contact of the alternating current relay K2 are externally connected with a signal level line of the electric push rod control circuit 2; a normally open contact of the alternating current relay K1 is externally connected with a first digital input interface of the electric push rod control circuit 2 through a rising control line; a normally open contact of the alternating current relay K2 is externally connected with a second digital quantity input interface of the electric push rod control circuit 2 through a descending control line;
two ends of an alternating current coil of the alternating current relay K1 are respectively connected with a rising live wire and a zero wire; two ends of an alternating current coil of the alternating current relay K2 are respectively connected with a descending live wire and a zero wire.
Preferably, the laser radar signal reception judging circuit 4 includes: laser radar and laser radar signal receiving circuit; the laser radar signal receiving circuit is used as a control loop;
a control line RXD of the laser radar is in butt joint with a serial port receiving pin in the control loop; a control pin of the control loop is connected with a third digital quantity input interface of the electric push rod control circuit 2;
the control loop obtains the position conditions of surrounding obstacles by taking the laser radar as a circle center according to data obtained from the control line RXD, and controls the level of the control pin according to the position conditions of the obstacles.
Preferably, the electric putter control interface circuit 3 comprises: the circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R49, a resistor R10, a resistor R11, a triode Q1, a triode Q2, a relay K3, a relay K4, a current-limiting inductor L1, a current-limiting inductor L2 and an interface P1;
one end of the resistor R1 is connected with a first digital output interface of the electric push rod control circuit 2, the other end of the resistor R1 is connected with a base electrode of a triode Q1, a collector electrode of the triode Q1 is connected with one end of a coil of a relay K3, the other end of the coil of the relay K3 is connected with an upper pull voltage end, and an emitter electrode of the triode Q1 is grounded through a resistor R10; a common contact of the relay K3 is connected with one input pin of the interface P1 through a current-limiting inductor L1, and a normally closed contact of the relay K3 is grounded through a resistor R49;
one end of the resistor R2 is connected with a second digital quantity output interface of the electric push rod control circuit 2, the other end of the resistor R2 is connected with a base electrode of a triode Q2, a collector electrode of the triode Q2 is connected with one end of a coil of a relay K4, the other end of the coil of the relay K4 is connected with an upper pull voltage end, and an emitter electrode of the triode Q2 is grounded through a resistor R11; a common contact of the relay K4 is connected with the other input pin of the interface P1 through a current-limiting inductor L2, and a normally closed contact of the relay K4 is grounded through a resistor R49;
the normally closed contact of the relay K3 and the normally closed contact of the relay K4 are both connected with a first analog quantity input interface of the electric push rod control circuit 2;
and the normally open contact of the relay K3 and the normally open contact of the relay K4 are respectively connected with a driving voltage end.
Preferably, the electric putter control circuit 2 includes: the control logic of the controller is: and processing the actions of the first digital quantity output interface and the second digital quantity output interface according to the first digital quantity input interface, the second digital quantity input interface, the third digital quantity input interface and the first analog quantity input interface.
Preferably, when the electric push rod performs any action, the laser radar signal receiving and judging circuit 3 continuously judges the surrounding situation, and if the received obstacle information is out of the detection range, the control pin is not pulled high; if the received obstacle information is in the detection range, the control pin is pulled high; the current action controlled by the electric push rod control circuit 2 is changed into a stop state until the control pin becomes low again, and the current action state is recovered;
if alternating current exists between the ascending live wire and the zero line and the descending live wire and the zero line do not exist, the alternating current relay K1 is closed, the ascending control line is connected with a signal level line, the controller of the electric push rod control circuit 2 receives the ascending control line pull-up and does not receive the descending control line pull-up, the controller can firstly confirm whether the level of a control pin of the laser radar signal receiving judgment circuit 3 is pulled up or not, if the level is pulled up, the relay K3 and the relay K4 are closed, and the common contact is maintained to be connected to one side of the normally closed contact; if the control pin is not pulled high, the control relay K3 is opened, the common contact is connected with the normally open contact to switch on the driving voltage end, the control relay K4 is closed, and the common contact is maintained to be connected to one side of the normally closed contact; definition when the relay K3 is opened and the relay K4 is closed, the electric push rod is lifted.
If alternating current exists between the descending live wire and the zero line and the ascending live wire and the zero line do not exist, the alternating current relay K2 is closed, the descending control line is connected with a signal level line, the controller of the electric push rod control circuit 2 receives the pull-up of the descending control line and does not receive the pull-up of the ascending control line, the controller can firstly confirm whether the level of a control pin of the laser radar signal receiving judgment circuit 3 is pulled up or not, if the level is pulled up, the control relay K3 and the relay K4 are both closed, and the common contact is maintained to be connected to one side of the normally closed contact; if the control pin is not pulled high, the control relay K4 is opened, the common contact is connected with the normally open contact to switch on the driving voltage end, so that the V level is pulled high, the control relay K3 is closed, and the common contact is kept connected to one side of the normally closed contact and the level is unchanged; definition when the relay K3 is closed and the relay K4 is opened, the electric push rod descends.
The furniture provided by the invention comprises an electric push rod and the electric push rod control device, wherein the electric push rod moves under the control of the electric push rod control device.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention solves the connection of common household switches and the connection of household switches of the Internet of things by adopting the structure of the alternating current relay circuit. Therefore, the using mode and the environment of the electric push rod are widened, and for example, the purpose of controlling the electric push rod by voice can be achieved by matching with a 220V Internet of things switch of a third party and an intelligent voice assistant.
2. The invention solves the problem that the electric forward turning bed or side turning bed product can not be actively stopped after meeting obstacles (children, old people and pets) by adopting a structure of the laser radar and the controller.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of an electric putter control device according to the present invention.
Fig. 2 is a schematic structural diagram of an ac relay control circuit 1 in the electric push rod control device according to the present invention.
Fig. 3 is a schematic structural diagram of an electric putter control interface circuit 3 in the electric putter control device according to the present invention.
Fig. 4 is a schematic structural principle diagram of a laser radar signal receiving and judging circuit 4 in the electric push rod control device provided by the present invention.
The figures show that:
AC relay control circuit 1
Electric push rod control circuit 2
Electric push rod control interface circuit 3
Laser radar signal receiving judgment circuit 4
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
Multi-functional electric putter controlling means includes: the device comprises an alternating current relay control circuit 1, an electric push rod control circuit 2, an electric push rod control interface circuit 3 and a laser radar signal receiving and judging circuit 4. The ac relay control circuit 1 is preferably, in particular, a 220V ac relay control circuit.
The output of the alternating current relay control circuit 1 is connected with the input of the electric push rod control circuit 2, the output of the electric push rod control circuit 2 is connected with the input of the electric push rod control interface circuit 3, and the output of the laser radar signal receiving and judging circuit 4 is connected with the input of the electric push rod control circuit 2.
The ac relay control circuit 1 includes: an ac relay K1, an ac relay K2; the ac relay K1 and the ac relay K2 are both relays that have an ac 220V coil and are open and closed. The circuit function of the part is to introduce household 220V switching value into the whole multifunctional loop of the electric push rod, and meanwhile, the part can be externally connected with a household 220V Internet of things switch of a third party. The public contact of the alternating current relay K1 and the public contact of the alternating current relay K2 are connected with the 3.3V level line of the electric push rod control circuit 2 externally, the normally open contact of the alternating current relay K1 is connected with the first digital input interface of the electric push rod control circuit 2 externally through a rising control line, and the normally open contact of the alternating current relay K2 is connected with the second digital input interface of the electric push rod control circuit 2 externally through a falling control line.
The electric putter control circuit 2 includes: an STM32F103C8T6 controller of the intentionally semi-conductor, and minimal system circuitry of the controller. The controller is led out 3 digital quantity input interfaces which are respectively connected with an ascending control line and a descending control line of the alternating current relay control circuit 1 and connected with a control pin of the laser radar signal receiving and judging circuit 4. An analog quantity input interface is led out from the controller and is connected to a current output interface of the electric push rod control interface circuit 3 to realize current feedback.
The control logic of the controller processes the actions of the two digital quantity output interfaces according to the three digital quantity input interfaces and the analog quantity input interface.
The electric putter control interface circuit 3 includes: the circuit comprises a resistor R1(1K ohm resistor), a resistor R2(1K ohm resistor), a resistor R3(1K ohm resistor), a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a resistor R9, a triode Q1(NPN triode), a triode Q2(NPN triode), a relay K3(5V relay), a relay K4(5V relay), a current-limiting inductor L1 and a current-limiting inductor L2. The resistor R1 and the resistor R2 are respectively used as base resistors of the triode Q1 and the triode Q2, the relay K3 and the relay K4 are connected to collectors of the triode Q1 and the triode Q2, and a 5V power supply is pulled up.
The resistor R4, the resistor R5, the resistor R6, the resistor R7, the resistor R8 and the resistor R9 which are connected in parallel are all 1-ohm 1/4W power resistors.
The laser radar signal reception determination circuit 4 includes: a laser radar and STM32F103C8T6 control loop; the control lines of the laser radar are respectively a 5V power supply line, a 3.3V power supply line, a ground wire GND and a control line RXD. Wherein control line RXD is interfaced to a serial receive pin in the STM32F103C8T6 control loop. The power requirements of the 5V power line and the 3.3V power line are more than 1A, the 5V power line supplies power to a laser transmitting and receiving circuit and an internal processing circuit of the laser radar, and the 3.3V power line supplies power to a motor of the laser radar. The control loop of STM32F103C8T6 needs to process data obtained from the control line RXD of the laser radar, and the position condition (distance 0.2M to 6M) (angle 0 to 360) of surrounding obstacles with the laser radar as the center of a circle can be known through the data. The STM32F103C8T6 control loop can recognize the situation of surrounding obstacles and control the level of the output pin by analyzing these obstacles, thereby controlling the action of the electric putter through the electric putter control circuit 2.
If there is the 220V alternating current between rising live wire and the zero line, do not have between decline live wire and the zero line, then K1 is closed, rising control line connection 3.3V, electric putter control circuit 2 controller STM32F103C8T6 has received the rising control line and has pulled up, do not receive the decline control line and pull up, the controller can confirm at first that laser radar signal reception judges whether the level of circuit 3's control pin pulls up, if pull up, then control K3 and K4's pin can not move. If the control pin is not pulled high, then the pin level of control K3 is pulled high and the pin level of control K4 is unchanged. When the level signals of R1 and R2 are equal to or higher than the on voltage (VBE, generally 0.7V) between the base emitters of Q1 and Q2, the collector voltages of Q1 and Q2 approach the emitter voltage, so that the coil ends of K3 and K4 are 5V, and are connected to the collectors of Q1 and Q2, and the voltage drops to approximately 0V. Thus, the K3 and K4 relays are opened. We define that when K3 is open, K4 is closed, the electric push rod is raised, K3 is closed, and when K4 is open, the electric push rod is lowered. When the level of the control K3 is pulled high, the electric push rod rises.
If there is the 220V alternating current between decline live wire and the zero line, do not have between rising live wire and the zero line, then K2 is closed, the decline control line is connected 3.3V, electric putter control circuit 2 controller STM32F103C8T6 has received the decline control line and has pulled up, it pulls up not receiving the control line that rises, the controller can confirm at first that laser radar signal reception judges whether the level of circuit 3's control pin pulls up, if pull up, then control K3 and K4's pin can not move. If the control pin is not pulled high, then the pin level of control K4 is pulled high and the pin level of control K3 is unchanged. When the level of the control K4 is pulled high, the electric push rod descends.
When any action is performed, the lidar signal reception determination circuit 3 constantly determines the surrounding situation, and if the received obstacle information is outside the detection range (for example, 0 ° -180 °) (outside the distance of 1.5 m), the control pin is not pulled high. If the received obstacle information is within the detection range (e.g., within 0 ° -180 °) (within 1.5 meters distance), the control pin will pull high. The current operation (whether ascending, descending, or stopping) of the electric putter control circuit 2 is stopped. Until the control pin goes low again, the current action state is restored.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (6)
1. An electric putter control device, comprising: the device comprises an alternating current relay control circuit (1), an electric push rod control circuit (2), an electric push rod control interface circuit (3) and a laser radar signal receiving and judging circuit (4);
the output of the alternating current relay control circuit (1) is connected with the input of the electric push rod control circuit (2), the output of the electric push rod control circuit (2) is connected with the input of the electric push rod control interface circuit (3), and the output of the laser radar signal receiving and judging circuit (4) is connected with the input of the electric push rod control circuit (2);
the electric push rod control circuit (2) controls the action of the electric push rod through the electric push rod control interface circuit (3) according to the input signal;
the laser radar signal reception determination circuit (4) includes: laser radar and laser radar signal receiving circuit; the laser radar signal receiving circuit is used as a control loop;
a control line RXD of the laser radar is in butt joint with a serial port receiving pin in the control loop; a control pin of the control loop is connected with a third digital quantity input interface of the electric push rod control circuit (2);
the control loop obtains the position conditions of surrounding obstacles by taking the laser radar as a circle center according to data obtained from the control line RXD, and controls the level of the control pin according to the position conditions of the obstacles.
2. The electric putter control device according to claim 1, characterized in that the ac relay control circuit (1) comprises: an ac relay K1, an ac relay K2;
the alternating current relay K1 and the alternating current relay K2 both comprise an alternating current coil and a single-pole double-throw switch; the single-pole double-throw switch comprises a common contact and a normally open contact;
the common contact of the alternating current relay K1 and the common contact of the alternating current relay K2 are externally connected with a signal level line of the electric push rod control circuit (2); a normally open contact of the alternating current relay K1 is externally connected with a first digital quantity input interface of the electric push rod control circuit (2) through a rising control line; a normally open contact of the alternating current relay K2 is externally connected with a second digital quantity input interface of the electric push rod control circuit (2) through a descending control line;
two ends of an alternating current coil of the alternating current relay K1 are respectively connected with a rising live wire and a zero wire; two ends of an alternating current coil of the alternating current relay K2 are respectively connected with a descending live wire and a zero wire.
3. The electric putter control device of claim 1, wherein the electric putter control interface circuit (3) comprises: the circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R49, a resistor R10, a resistor R11, a triode Q1, a triode Q2, a relay K3, a relay K4, a current-limiting inductor L1, a current-limiting inductor L2 and an interface P1;
one end of the resistor R1 is connected with a first digital output interface of the electric push rod control circuit (2), the other end of the resistor R1 is connected with a base electrode of a triode Q1, a collector electrode of the triode Q1 is connected with one end of a coil of a relay K3, the other end of the coil of the relay K3 is connected with an upper pull voltage end, and an emitter electrode of the triode Q1 is grounded through a resistor R10; a common contact of the relay K3 is connected with one input pin of the interface P1 through a current-limiting inductor L1, and a normally closed contact of the relay K3 is grounded through a resistor R49;
one end of the resistor R2 is connected with a second digital quantity output interface of the electric push rod control circuit (2), the other end of the resistor R2 is connected with a base electrode of a triode Q2, a collector electrode of the triode Q2 is connected with one end of a coil of a relay K4, the other end of the coil of the relay K4 is connected with an upper pull voltage end, and an emitter electrode of the triode Q2 is grounded through a resistor R11; a common contact of the relay K4 is connected with the other input pin of the interface P1 through a current-limiting inductor L2, and a normally closed contact of the relay K4 is grounded through a resistor R49;
the normally closed contact of the relay K3 and the normally closed contact of the relay K4 are both connected with a first analog quantity input interface of the electric push rod control circuit (2);
and the normally open contact of the relay K3 and the normally open contact of the relay K4 are respectively connected with a driving voltage end.
4. The electric putter control device of claim 2, wherein the electric putter control circuit (2) comprises: the control logic of the controller is: and processing the actions of the first digital quantity output interface and the second digital quantity output interface according to the first digital quantity input interface, the second digital quantity input interface, the third digital quantity input interface and the first analog quantity input interface.
5. The electric putter control device according to claim 1, wherein the lidar signal reception determination circuit (3) constantly determines the surrounding situation when the electric putter is operated arbitrarily, and if the received obstacle information is outside the detection range, the control pin is not pulled up; if the received obstacle information is in the detection range, the control pin is pulled high; the current action controlled by the electric push rod control circuit (2) is changed into a stop state until the control pin becomes low again, and the current action state is recovered;
if alternating current exists between the ascending live wire and the zero line and the descending live wire and the zero line do not exist, the alternating current relay K1 is closed, the ascending control line is connected with a signal level line, the controller of the electric push rod control circuit (2) receives the ascending control line pull-up and does not receive the descending control line pull-up, the controller can firstly confirm whether the level of a control pin of the laser radar signal receiving judgment circuit (3) is pulled up or not, if the level is pulled up, the relay K3 and the relay K4 are closed, and the common contact is maintained to be connected to one side of the normally closed contact; if the control pin is not pulled high, the control relay K3 is opened, the common contact is connected with the normally open contact to switch on the driving voltage end, the control relay K4 is closed, and the common contact is maintained to be connected to one side of the normally closed contact; when the relay K3 is opened and the relay K4 is closed, the electric push rod ascends;
if alternating current exists between the descending live wire and the zero line and the ascending live wire and the zero line do not exist, the alternating current relay K2 is closed, the descending control line is connected with a signal level line, the controller of the electric push rod control circuit (2) receives the pull-up of the descending control line and does not receive the pull-up of the ascending control line, the controller can firstly confirm whether the level of a control pin of the laser radar signal receiving judgment circuit (3) is pulled up or not, if the level is pulled up, the relay K3 and the relay K4 are both closed, and the common contact is maintained to be connected to one side of the normally closed contact; if the control pin is not pulled high, the control relay K4 is opened, the common contact is connected with the normally open contact to switch on the driving voltage end, so that the V level is pulled high, the control relay K3 is closed, and the common contact is kept connected to one side of the normally closed contact and the level is unchanged; definition when the relay K3 is closed and the relay K4 is opened, the electric push rod descends.
6. An article of furniture including an electric putter, comprising an electric putter control device according to any one of claims 1 to 5, the electric putter being moved under the control of the electric putter control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294943.4A CN109298664B (en) | 2018-11-01 | 2018-11-01 | Electric push rod control device and furniture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811294943.4A CN109298664B (en) | 2018-11-01 | 2018-11-01 | Electric push rod control device and furniture |
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| Publication Number | Publication Date |
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| CN109298664A CN109298664A (en) | 2019-02-01 |
| CN109298664B true CN109298664B (en) | 2020-02-11 |
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| CN201811294943.4A Expired - Fee Related CN109298664B (en) | 2018-11-01 | 2018-11-01 | Electric push rod control device and furniture |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203691308U (en) * | 2014-01-23 | 2014-07-02 | 中山市高利锁业股份有限公司 | Motor control circuit capable of controlling opening and closing of door, window or curtain |
| CN205038518U (en) * | 2015-10-10 | 2016-02-17 | 华北电力大学（保定） | Automatic dolly of falling storehouse of barrier is kept away to intelligence |
| CN205344864U (en) * | 2016-01-22 | 2016-06-29 | 青岛港国际股份有限公司 | Openly hang intelligence brake auxiliary system that backs a car |
| CN206809015U (en) * | 2016-12-31 | 2017-12-29 | 深圳市中科智宏实业发展有限公司 | A kind of electricity-saving type Intelligent seat |
| CN108186268A (en) * | 2018-02-07 | 2018-06-22 | 成都名典匠心工业产品设计有限公司 | A kind of gynecological examination couch convenient for adjusting |
| CN108445938A (en) * | 2018-04-19 | 2018-08-24 | 浙江工业大学 | A kind of lifting gear and its control method based on multi-source perceptual signal Collaborative Control |
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