CN103622232B - Singlechip computer control-based full-automatic umbrella - Google Patents
Singlechip computer control-based full-automatic umbrella Download PDFInfo
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- CN103622232B CN103622232B CN201310632428.3A CN201310632428A CN103622232B CN 103622232 B CN103622232 B CN 103622232B CN 201310632428 A CN201310632428 A CN 201310632428A CN 103622232 B CN103622232 B CN 103622232B
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Abstract
The invention discloses a singlechip computer control-based full-automatic umbrella. The singlechip computer control-based full-automatic umbrella comprises a hollow tubular umbrella handle, a sliding block which is sleeved outside the umbrella handle and slides along the umbrella handle, an umbrella frame and an umbrella surface, wherein the cavity of the umbrella handle is communicated with the cavity of a handle; a control device is arranged in the cavity and comprises a screw rod, a stepping motor, a singlechip computer development board and a power supply, wherein the screw rod comprises an upper screw thread installation end, a lower screw thread installation end and a middle screw thread section; the stepping motor is connected with the singlechip computer development board through a conducting wire; the singlechip computer development board is integrated with a singlechip computer, a crystal oscillator circuit, a reset circuit, a stepping motor drive circuit chip and a matrix keyboard arranged on the handle; the power supply supplies power to the singlechip computer and the stepping motor drive circuit chip in the singlechip computer development board respectively. The singlechip computer control-based full-automatic umbrella has the beneficial effects that the umbrella can be unfolded and folded by one hand; the umbrella surface can be fixedly kept at a certain opening angle; the umbrella folding and unfolding speed can be adjusted.
Description
Technical field
The present invention relates to a kind of based on monolithic processor controlled full-automatic umbrella.
Background technology
At present, automatic umbrella on the market just can complete by a hand when opening, but when folding, must help, just can complete by another hand or by other object.This brings inconvenience just to some special personages.Under the umbrella cover of umbrella can not fixedly remain on certain opening angle in the ordinary course of things on the market, can only open completely or fold completely, to open in addition and to fold the speed of umbrella unadjustable, automatically can not regulate the size of rain gear, thus in some in particular cases inconvenience to some extent.
Summary of the invention
The present invention is directed to current umbrella can only be in the state of opening completely or fold completely and open or the problem that size cannot adjust, bimanualness is fixed, needed to umbrella handle effective length of the speed that folds and umbrella cover, propose that a kind of opening angle can adjust at any time, speed of opening is controlled, umbrella handle effective length large, only need one hand and controllable based on monolithic processor controlled full-automatic umbrella.
Of the present invention based on monolithic processor controlled full-automatic umbrella, comprise hollow tubular umbrella handle, be socketed on umbrella handle outside and the slide block, umbrella stand, the umbrella cover that slide along umbrella handle, described umbrella handle end mounting knob, described umbrella stand comprises many umbrella frames and corresponding umbrella spoke, described umbrella frame upper end thereof is in umbrella jacking nut outer rim, and one end of described umbrella spoke is hinged on the periphery of slide block, the hinged corresponding umbrella frame of other end difference; Described umbrella cover is fixed on the surface of described umbrella frame, it is characterized in that: the cavity connects between described umbrella handle and described handle, control device described in installing in described cavity, described control device comprises screw rod, stepper motor, microcomputer development plate, power supply, described screw rod comprises the thread segment of threaded mounting end, lower threaded mounting end and centre, the two ends of described screw rod respectively by upper bearing (metal) and lower bearing bracket inner in umbrella handle; The part that under described screw rod, threaded mounting end is connected with the output shaft of described stepper motor by shaft coupling, upper threaded mounting end stretches out umbrella handle engages umbrella jacking nut, described screw flight section is spirally connected umbrella handle nut, and described umbrella handle nut is fixed by the window on umbrella handle and described slide block; Described stepper motor is connected with described microcomputer development plate wire.
Integrated monolithic machine, crystal oscillating circuit, reset circuit, stepper motor driving circuit chip and the matrix keyboard that is arranged on handle on described microcomputer development plate; Described crystal oscillating circuit, reset circuit, stepper motor driving circuit chip and matrix keyboard are all connected with described single-chip microcomputer signal; The described power supply single-chip microcomputer be respectively in described microcomputer development plate is powered and stepper motor driving circuit chip power supply; Described single-chip microcomputer adopts the Timer/Counter carried, Timer/Counter arrange be operated in timing mode, to timer compose an initial value can make its timing regular hour after triggered interrupts program; Initialize Timer and the timing of startup timer in main program, in interrupt routine, again initial value is composed to timer, and restart timer, a variable is set in interrupt routine for recording the number of times interrupting reaching, when interruption times reaches preset value, this variable is cleared for again counting, the key-case of the matrix keyboard now obtained according to keyboard scan program, and each pin of corresponding output port exports corresponding level; When counting variable reaches preset value again, according to the key-case of now keyboard, each pin of corresponding output port exports corresponding level, and circulating with this exports corresponding sequence of levels to control the rotation of motor.
Described screw rod is coaxial with described umbrella handle.
The upper threaded mounting end of described screw rod and the external diameter of described lower threaded mounting end are all less than the external diameter of described thread segment, and the thread pitch being arranged on threaded mounting end and lower threaded mounting end is less than the thread pitch of described thread segment.
The time of described umbrella jacking nut from the lowermost end threading action of upper threaded mounting end to the top screw thread is equal to the time of the top screw thread from the lowermost end threading action of thread segment with described umbrella handle nut.
The upper end installation end be positioned at directly over described upper bearing (metal) is furnished with the bearing (ball) cover for limiting upper bearing (metal) axial displacement.
Described umbrella handle and described handle are spirally connected.
Described microcomputer development plate and described power supply are placed in described handle, and the upper bearing (metal) of described stepper motor, screw rod and standing screw, lower bearing and umbrella handle nut are all placed in umbrella handle inside.
Described microcomputer development plate adopts STC series monolithic 89C52RC; Described power acquisition+5V Power supply; Described stepper motor driving circuit chip adopts the anti-phase driving chip ULN2003 of external power source; Described matrix keyboard is 2 × 2 matrix keyboards, is provided with 4 buttons altogether, is respectively positive turn key, reverse key, accelerator key and deceleration key.
Operation principle of the present invention is: single-chip microcomputer adopts the Timer/Counter carried, Timer/Counter arrange be operated in timing mode, to timer compose an initial value can make its timing regular hour after triggered interrupts program.Initialize Timer and the timing of startup timer in main program, in interrupt routine, again initial value is composed to timer, and restart timer, a variable is set in interrupt routine for recording the number of times interrupting reaching, when interruption times reaches preset value, this variable is cleared for again counting, and the key-case of the matrix keyboard now obtained according to keyboard scan program, each pin of corresponding output port exports corresponding level.When counting variable reaches preset value again, according to the key-case of now keyboard, each pin of corresponding output port exports corresponding level, and circulating with this exports corresponding sequence of levels to control the rotation of motor; When pressing positive turn key, single-chip microcomputer output port exports corresponding sequence of levels control step motor and rotates forward, and drives bolt rotary, and the direction of umbrella handle nut toward umbrella top on screw rod is moved, and band movable slider moves in the same way, promotes umbrella frame and struts umbrella cover.Meanwhile, the rotation of screw rod also drives umbrella jacking nut to move toward same direction with umbrella handle nut, and due to little relative to umbrella handle nut place of the pitch of the screw thread at umbrella jacking nut place, the distance of thus umbrella jacking nut movement is less than the distance of umbrella handle nut movement.When umbrella handle nut moves to screw flight top, umbrella jacking nut also moves to maximum distance apart, and now umbrella frame opens completely, and the movement of umbrella jacking nut makes the effective length of umbrella handle increase, and the space that parachute kit can block increases.
When the reverse key is pressed, stepper motor reverses, and drives screw rod to rotate backward, the oppositely movement on umbrella handle of umbrella handle nut band movable slider, shrinks umbrella frame and umbrella cover.The rotation of screw rod drives umbrella jacking nut to move toward same direction with umbrella handle nut simultaneously.When umbrella handle nut moves to screw flight tail end, umbrella jacking nut also moves to maximum distance apart, and now umbrella frame shrinks completely, and the movement of umbrella jacking nut makes the effective length of umbrella handle reduce, and the size after parachute kit shrinks reduces to a certain extent to some extent.
Button is unclamped when a certain moment at bolt rotary, stepper motor stops operating, and screw rod stops operating, now due to the self-locking action of umbrella handle nut, umbrella jacking nut and screw flight; umbrella handle nut, umbrella jacking nut do not move, and now umbrella cover just fixedly remains on certain to open or under contraction state.
In interrupt routine, be provided with the preset value of counting variable, the size of this value determines one-chip machine port often how often output level sequence, and the large I changing this value changes the frequency of port output level sequence, thus changes the rotating speed of stepper motor.When pressing accelerator key, program just reduces the value of this counting variable, and when pressing deceleration key, program just increases the value of this counting variable, and when unclamping button, the value of counting variable remains unchanged.By accelerator key and the deceleration key just adjustable speed of opening and folding umbrella.
The invention has the beneficial effects as follows: hand is with regard to expansible and fold umbrella, under umbrella cover can fixedly remain on certain opening angle, to open and to fold the speed of umbrella adjustable, adapt to the situation that some are special, there are good market prospects.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is front view of the present invention.
Fig. 3 is A-A sectional view of the present invention.
Fig. 4 is microcomputer development plate circuit theory diagrams of the present invention.
Detailed description of the invention
The present invention is further illustrated below in conjunction with accompanying drawing
With reference to accompanying drawing:
Embodiment 1 is of the present invention based on monolithic processor controlled full-automatic umbrella, comprise hollow tubular umbrella handle 1, be socketed on umbrella handle outside and the slide block 2, umbrella stand, the umbrella cover 4 that slide along umbrella handle, described umbrella handle 1 end mounting knob 11, described umbrella stand comprises many umbrella frames 31 and corresponding umbrella spoke 32, described umbrella frame 31 upper end thereof is in umbrella jacking nut 5 outer rim, and one end of described umbrella spoke 32 is hinged on the periphery of slide block 2, the other end hinged corresponding umbrella frame 31 respectively; Described umbrella cover 4 is fixed on the surface of described umbrella frame 31, cavity connects between described umbrella handle 1 and described handle 11, control dress described in installing in described cavity, described control device comprises screw rod 61, stepper motor 62, microcomputer development plate 63, power supply 64, described screw rod 61 comprises the thread segment 613 of threaded mounting end 611, lower threaded mounting end 612 and centre, the two ends of described screw rod 61 respectively by upper bearing (metal) 614 and lower bearing 615 frame inner in umbrella handle 1; The part that described lower threaded mounting end 612 is connected with the output shaft of described stepper motor 62 by shaft coupling 616, upper threaded mounting end 611 stretches out umbrella handle 1 engages umbrella jacking nut 5, the thread segment 613 of described screw rod 61 is spirally connected umbrella handle nut 617, and described umbrella handle nut 617 is fixed by the window 12 on umbrella handle 1 and described slide block 2; Described stepper motor 62 is connected with described microcomputer development plate 63 wire.
Integrated monolithic machine, crystal oscillating circuit, reset circuit, stepper motor driving circuit chip and the matrix keyboard that is arranged on handle on described microcomputer development plate 63; Described crystal oscillating circuit, reset circuit, stepper motor driving circuit chip and matrix keyboard are all connected with described single-chip microcomputer signal; The described power supply single-chip microcomputer be respectively in described microcomputer development plate 63 is powered and stepper motor driving circuit chip power supply; Described single-chip microcomputer adopts the Timer/Counter carried, Timer/Counter arrange be operated in timing mode, to timer compose an initial value can make its timing regular hour after triggered interrupts program; Initialize Timer and the timing of startup timer in main program, in interrupt routine, again initial value is composed to timer, and restart timer, a variable is set in interrupt routine for recording the number of times interrupting reaching, when interruption times reaches preset value, this variable is cleared for again counting, the key-case of the matrix keyboard now obtained according to keyboard scan program, and each pin of corresponding output port exports corresponding level; When counting variable reaches preset value again, according to the key-case of now keyboard, each pin of corresponding output port exports corresponding level, and circulating with this exports corresponding sequence of levels to control the rotation of motor.
Described screw rod 61 is coaxial with described umbrella handle.
Upper threaded mounting end 611 and the external diameter of described lower threaded mounting end 612 of described screw rod 61 are all less than the external diameter of described thread segment 613, and the thread pitch being arranged on threaded mounting end 611 and lower threaded mounting end 612 is less than the thread pitch of described thread segment 613.
The time of described umbrella jacking nut 5 from the lowermost end threading action of upper threaded mounting end 611 to the top screw thread is equal to the time of the top screw thread from the lowermost end threading action of thread segment 613 with described umbrella handle nut 617.
The upper end installation end 611 be positioned at directly over described upper bearing (metal) 614 is furnished with the bearing (ball) cover 618 for limiting upper bearing (metal) axial displacement.
Described umbrella handle 1 is spirally connected with described handle 11.
Described microcomputer development plate 63 and described power supply 64 are placed in described handle 11, and it is inner that the upper bearing (metal) 614 of described stepper motor 62, screw rod 61 and standing screw, lower bearing 615 and umbrella handle nut 617 are all placed in umbrella handle 1.
Described microcomputer development plate 63 adopts STC series monolithic 89C52RC; Described power supply 64 adopts+5V Power supply; Described stepper motor driving circuit chip adopts the anti-phase driving chip ULN2003 of external power source; Described matrix keyboard is 2 × 2 matrix keyboards, is provided with 4 buttons altogether, is respectively positive turn key, reverse key, accelerator key and deceleration key.
Embodiment 2 microcomputer development program and annotate as follows:
Program is mainly divided into three parts, is respectively timer initialize routine, keyboard scan round program and interrupt routine.In timer initialize routine, 8 of Timer/Counter mode register TMOD are set to binary number 00000001, represent that single-chip microcomputer adopts T0 timer and T0 adopts 16 bit timings/counter works mode.The least-significant byte of T0 and most-significant byte are respectively by tax initial value 00111100 and 11110110, and the machine cycle is 2 μ s, therefore timing is 5ms.Start timer after setting and start timing.
In keyboard scan round program, consider the low 4 of P2 port, high 4 unification all set of P2 port.The first stage of circulation resets first to P2.0 pin, to the set of P2.1, P2.2, P2.3 pin, reads the level state of 4 pins afterwards.If now the level state big-endian of 4 pins is not 1110, then show that S2 key or S3 key are pressed.If level state is 1010, then show that S2 key is pressed.If level state is 0110, then show that S3 key is pressed.If above-mentioned situation, using the return of value of the level state of now P2 port as program.Otherwise the return of value of program is its default value.This return of value is stored with a variable temp.The second stage program of circulation resets to P2.1, to the set of P2.0, P2.2, P2.3 pin, reads the level state of 4 pins afterwards.If now the level state big-endian of 4 pins is not 1101, then show that S4 key or S5 key are pressed.If level state is 1001, then show that S4 key is pressed.If level state is 0101, then show that S5 key is pressed.If above-mentioned situation, using the return of value of the level state of now P2 port as program.Otherwise the return of value of program is its default value.Equally, the return of value assignment of program is to variable temp.P2 port returns level state when in 4 first stage that element is stored in circulation respectively of array keycode, S2 key, S3 key are individually pressed and when in the second stage circulated, S4 key, S5 key are individually pressed.Variable temp is compared with 4 elements of array keycode respectively, if consistent element can be found, then returns the subscript value of this element in array, if there is no consistent element, then return default value 4.Global variable command is for storing this return of value.In the present embodiment, command=0 shows that S2 key is pressed, and command=1 shows that S3 key is pressed, and command=2 shows that S4 key is pressed, and command=3 shows that S5 key is pressed, and command=4 shows to be pressed without button.
In interrupt routine, think highly of new tax initial value to timing and restart, variable timer0_tick is for recording the number of times interrupting reaching, often trigger an interrupt routine timer0_tick just from adding one, when the value of timer0_tick reaches preset value, timer0_tick is cleared for again counting, variable j is from adding one, just be cleared when the value of j reaches 4, now program is according to the value of command, export subscript value in array forward or array backward to each pin of P0 port and equal the level state represented by the element of j, or change the size of the preset value of timer0_tick, or give the equal set of each pin of P0 port.With this, program is every at regular intervals just according to the value of command, cyclically export the level state represented by the element in array forward or array backward to each pin of P0 port successively, or change the size of the preset value of timer0_tick, or give the equal set of each pin of P0 port.Wherein, 4 element representations in array forward be control motor rotate forward needed for the sequence of P0 port output level, 4 element representations in array backward be the sequence of the P0 port output level controlled needed for motor reversal.
When pressing positive turn key, command=0, now single-chip microcomputer P0 port cyclically exports the level state represented by each element in array forward successively, through the anti-phase driving of motor drive ic, carry out control step motor 62 to rotate forward, drive screw rod 61 to rotate, the direction of umbrella handle nut 617 toward umbrella top on screw rod 61 is moved, move with the direction of movable slider 2 toward umbrella top on umbrella handle 1, promote umbrella frame 31 and strut umbrella cover 4.Meanwhile, the rotation of screw rod 61 also drives umbrella jacking nut 5 to move toward same direction with umbrella handle nut 617, and due to little relative to umbrella handle nut 617 place of the pitch of the screw thread at umbrella jacking nut 5 place, the distance of thus umbrella jacking nut 5 movement is less than the distance of umbrella handle nut 617 movement.When umbrella handle nut 617 moves to the screw thread tail end of screw rod 61, umbrella jacking nut 5 also moves to maximum distance apart, and now umbrella frame 31 opens completely, and the movement of umbrella jacking nut 5 makes the effective length of umbrella handle 1 increase, and the space that parachute kit can block increases.
When the reverse key is pressed, command=1, now single-chip microcomputer P0 port cyclically exports the level state represented by each element in array backward successively, through the anti-phase driving of motor drive ic, carry out control step motor 62 to reverse, drive screw rod 61 to rotate backward, umbrella handle nut 617 is with movable slider 2 oppositely movement on umbrella handle 1, shrinks umbrella frame 31 and umbrella cover 4.The rotation of screw rod 61 drives umbrella jacking nut 5 to move toward same direction with umbrella handle nut 617 simultaneously.When umbrella handle nut 5 moves to the screw thread tail end of screw rod 61, umbrella jacking nut 5 also moves to maximum distance apart, and now umbrella frame 31 shrinks completely, and the movement of umbrella jacking nut 5 makes the effective length of umbrella handle 1 reduce, and the size of parachute kit reduces to a certain extent to some extent.
Button is unclamped when a certain moment of rotating at screw rod 61, now command=4, the each pin of P0 port is all set, through the anti-phase driving of motor drive ic, stepper motor 62 stops operating, and screw rod 61 does not rotate, now due to the self-locking action of umbrella handle nut 617, umbrella jacking nut 5 and screw rod 61 screw thread; umbrella handle nut 617, umbrella jacking nut 5 do not move, under now umbrella cover 4 just fixedly remains on certain state.
When pressing accelerator key, command=2, program reduces the size of the preset value of timer0_tick.When pressing deceleration key, command=3, program increases the size of the preset value of timer0_tick.By accelerator key and the deceleration key just adjustable speed of opening and folding umbrella.
Content described in this description embodiment is only enumerating the way of realization of inventive concept; protection scope of the present invention should not be regarded as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also comprises those skilled in the art and conceives the equivalent technologies means that can expect according to the present invention.
Claims (8)
1. based on monolithic processor controlled full-automatic umbrella, comprise hollow tubular umbrella handle, be socketed on umbrella handle outside and the slide block, umbrella stand, the umbrella cover that slide along umbrella handle, described umbrella handle end mounting knob, described umbrella stand comprises many umbrella frames and corresponding umbrella spoke, described umbrella frame upper end thereof is in umbrella jacking nut outer rim, and one end of described umbrella spoke is hinged on the periphery of slide block, the hinged corresponding umbrella frame of other end difference; Described umbrella cover is fixed on the surface of described umbrella frame, it is characterized in that: the cavity connects between described umbrella handle and described handle, control device described in installing in described cavity, described control device comprises screw rod, stepper motor, microcomputer development plate, power supply, described screw rod comprises the thread segment of threaded mounting end, lower threaded mounting end and centre, the two ends of described screw rod respectively by upper bearing (metal) and lower bearing bracket inner in umbrella handle; The part that under described screw rod, threaded mounting end is connected with the output shaft of described stepper motor by shaft coupling, upper threaded mounting end stretches out umbrella handle engages umbrella jacking nut, described screw flight section is spirally connected umbrella handle nut, and described umbrella handle nut is fixed by the window on umbrella handle and described slide block; Described stepper motor is connected with described microcomputer development plate wire, integrated monolithic machine, crystal oscillating circuit, reset circuit, stepper motor driving circuit chip and the matrix keyboard that is arranged on handle on described microcomputer development plate; Described crystal oscillating circuit, reset circuit, stepper motor driving circuit chip and matrix keyboard are all connected with described single-chip microcomputer signal; The described power supply single-chip microcomputer be respectively in described microcomputer development plate is powered and stepper motor driving circuit chip power supply;
Integrated monolithic machine, crystal oscillating circuit, reset circuit, stepper motor driving circuit chip and the matrix keyboard that is arranged on handle on described microcomputer development plate; Described crystal oscillating circuit, reset circuit, stepper motor driving circuit chip and matrix keyboard are all connected with described single-chip microcomputer signal; The described power supply single-chip microcomputer be respectively in described microcomputer development plate is powered and stepper motor driving circuit chip power supply; Described single-chip microcomputer adopts the Timer/Counter carried, Timer/Counter arrange be operated in timing mode, to timer compose an initial value can make its timing regular hour after triggered interrupts program; Initialize Timer and the timing of startup timer in main program, in interrupt routine, again initial value is composed to timer, and restart timer, a variable is set in interrupt routine for recording the number of times interrupting reaching, when interruption times reaches preset value, this variable is cleared for again counting, the key-case of the matrix keyboard now obtained according to keyboard scan program, and each pin of corresponding output port exports corresponding level; When counting variable reaches preset value again, according to the key-case of now keyboard, each pin of corresponding output port exports corresponding level, and circulating with this exports corresponding sequence of levels to control the rotation of motor.
2. as claimed in claim 1 based on monolithic processor controlled full-automatic umbrella, it is characterized in that: described screw rod is coaxial with described umbrella handle.
3. as claimed in claim 2 based on monolithic processor controlled full-automatic umbrella, it is characterized in that: the upper threaded mounting end of described screw rod and the external diameter of described lower threaded mounting end are all less than the external diameter of described thread segment, and the thread pitch being arranged on threaded mounting end and lower threaded mounting end is less than the thread pitch of described thread segment.
4. as claimed in claim 1 based on monolithic processor controlled full-automatic umbrella, it is characterized in that: the time of described umbrella jacking nut from the lowermost end threading action of upper threaded mounting end to the top screw thread is equal to the time of the top screw thread from the lowermost end threading action of thread segment with described umbrella handle nut.
5. as claimed in claim 1 based on monolithic processor controlled full-automatic umbrella, it is characterized in that: the upper end installation end be positioned at directly over described upper bearing (metal) is furnished with the bearing (ball) cover for limiting upper bearing (metal) axial displacement.
6. as claimed in claim 1 based on monolithic processor controlled full-automatic umbrella, it is characterized in that: described umbrella handle and described handle are spirally connected.
7. as claimed in claim 5 based on monolithic processor controlled full-automatic umbrella, it is characterized in that: described microcomputer development plate and described power supply are placed in described handle, the upper bearing (metal) of described stepper motor, screw rod and standing screw, lower bearing and umbrella handle nut are all placed in umbrella handle inside.
8. as claimed in claim 7 based on monolithic processor controlled full-automatic umbrella, it is characterized in that: described microcomputer development plate adopts STC series monolithic 89C52RC; Described power acquisition+5V Power supply; Described stepper motor driving circuit chip adopts the anti-phase driving chip ULN2003 of external power source; Described matrix keyboard is 2 × 2 matrix keyboards, is provided with 4 buttons altogether, is respectively positive turn key, reverse key, accelerator key and deceleration key.
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| CN201310632428.3A CN103622232B (en) | 2013-11-29 | 2013-11-29 | Singlechip computer control-based full-automatic umbrella |
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| CN201310632428.3A CN103622232B (en) | 2013-11-29 | 2013-11-29 | Singlechip computer control-based full-automatic umbrella |
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| CN106617560A (en) * | 2016-11-29 | 2017-05-10 | 辽宁大学 | Full-automatic electronic-control umbrella |
| CN106360912A (en) * | 2016-12-05 | 2017-02-01 | 郭轩 | Full-automatic intelligent straight-handle multipurpose umbrella |
| CN108991668A (en) * | 2018-05-31 | 2018-12-14 | 南京工业职业技术学院 | A kind of SCM Based sunshade-rain umbrella |
| CN110067285B (en) * | 2019-05-22 | 2021-02-09 | 河海大学 | Solar groundwater extraction device and extraction method thereof |
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| CN101427862B (en) * | 2008-11-05 | 2012-07-04 | 惠州市泓利实业有限公司 | Solar energy automatic remote control umbrella |
| CN201332757Y (en) * | 2009-01-09 | 2009-10-28 | 宓建伟 | Umbrella with solar energy lamp |
| CN203290367U (en) * | 2013-05-03 | 2013-11-20 | 厦门明和实业有限公司 | Operating mechanism for automatically unfolding and folding umbrella |
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