CN201236579Y - Garage door control system with double-pulse signal detection apparatus - Google Patents

Abstract

Aiming to solve the problem that the miscalculation on the actual movement position of the garage door is easily caused through adopting the prior art, the utility model provides garage door control system with a dipulse signal detection device and relates to a garage door control system. The utility model comprises a coded disc and two detection devices which are matched with the coded disc and can send detection signals. The coded disc is in transmission connection with a driving device; first signal segments and second signal segments are interlaced with each other on the circumference of the coded disc; the detection devices respectively send high level signals and low level signals to a controller when corresponding with the first signal segments and the second signal segments; when the signals sent by one of the detection devices generate high-low level conversion, signals sent by the other detection device to the controller keep the original level state; the controller comprises a phase comparison module and a signal pulse counting module. The utility model has the advantages of achieving the purpose that the moving direction, the speed and the position of the garage door can be simultaneously detected and accurately judging the travel of the garage door after the garage door is stopped and interrupted by the external force so as to generate movement.

Description

Garage door control system with dipulse signal supervisory instrument

[technical field]

The utility model relates to a kind of garage door control system, specifically is a kind of control system that has the dipulse signal supervisory instrument and can detect the garage door direction of motion, speed and position.

[background technology]

A kind of garage door of opening is up and down generally used in the place between garage or warehouse or large car etc., this garage door generally all is provided with the opening and closing that the garage door control system is come control gate, and present common garage door control system generally all is provided with checkout gear the moving situation of garage door is monitored.These checkout gears all link with the motor of garage door, by detecting the rotation number of turns of motor, controller to garage door sends single lap signal, calculates the movement position and the stroke of garage door by controller, and obtains the speed of garage door by the measurement motor speed.This garage door in use, sometimes because of stopped by accident or external force is disturbed and to be produced improper motion, and the garage door control system can not detect these improper travel directions, motor rotates and feeds back to the increase that the checkout gear place only brings the number of turns, and can not reflect turning to of motor, cause the erroneous calculations of control system to garage door actual motion position easily, the accumulative total of a large amount of erroneous calculations can make the stroke of garage door produce bigger deviation.

[utility model content]

In order to overcome the above-mentioned defective that exists in the prior art, the utility model provides a kind of garage door control system with dipulse signal supervisory instrument, by two output signals be set there be the checkout gear of certain phase difference, with reach when garage door moves, stopped or the external force disturbed condition under accurately detecting gate the position, eliminate the purpose of stroke cumulative errors.

For this reason, the utility model is by the following technical solutions: the garage door control system with dipulse signal supervisory instrument, comprise and drive the drive unit that garage door moves up and down, the controller of accessory drive work and the operational order input unit that links to each other with controller, it is characterized in that: described control system also comprises code-disc and cooperates two checkout gears that can send detectable signal of code-disc, code-disc and drive unit are in transmission connection, code-disc is provided with first signal segment and the secondary signal section that is interspersed along circumference, checkout gear sends high level and low level signal to controller respectively during corresponding to first signal segment and secondary signal section, two lines between the position of two checkout gears and the code-disc center of circle have angle, when signal generation high-low level conversion that a checkout gear sends to controller, the signal that another checkout gear sends to controller keeps original level state constant, and controller comprises signal phase comparison module and signal pulse counting module.Drive unit drives the garage door rotation can drive the code-disc rotation simultaneously, and the code-disc rotation makes corresponding alternately first signal segment of checkout gear and secondary signal section, promptly staggered high level and the low level signal of sending.The installation site of two checkout gears certain angle of being separated by, same signal segment was had successively through the time of two checkout gears, therefore the waveform signal of their generations has certain phase difference, signal phase comparison module in the controller compares these two waveforms, the rotation direction that just can obtain code-disc in conjunction with the installation site of two checkout gears i.e. the direction of motion of door, counter comprises the counting that opens and closes both direction, writes down the motion of the corresponding both direction that adds up respectively.Like this, when garage door in the use because of being obstructed or external force when producing accidental movement, these accidental movement feed back to drive unit and code-disc are rotated, because of accurately learning the rotation direction of code-disc, just can obtain rising or decline information that these accidental movement cause door thus, thereby accurately record the physical location of garage door, guarantee the stroke accuracy of door.The speed of door then can record according to the rotating speed of code-disc.Generally, controller can be got the moment of a signal high-low level variation and judge the sequencing of same signal segment through two checkout gears according to the high-low level state of another signal, therefore want the installation site of the shared angle of suitable conditioning signal section and two checkout gears to guarantee when the signal generation high-low level that a checkout gear sends to controller is changed, the signal that another checkout gear sends to controller keeps original level state constant, reaches the measurement purpose.

As the further of technique scheme improved and replenish, the utility model is taked following technical measures:

Described checkout gear comprises detecting element and the shaping treatment circuit that detecting element is linked to each other with controller.Detecting element detects the state of code-disc, sends different signals at first signal segment with the secondary signal section, and the shaping treatment circuit is handled these two kinds of different signals, sends high level or low level accordingly and gives controller.

All shared angles of first signal segment (214) all equate to be a on the described code-disc, all shared angles of secondary signal section (215) also all equate to be b, if c is the angle that the position of two detecting elements is become with code-disc circle line, i is an arbitrary integer, n is the number of code-disc circumference signal segment, then (a, b)/2, unit is degree to c=i* (360/n)+360/4n ± min.Satisfying under the situation of above-mentioned condition, can guarantee that the signal that another checkout gear sends to controller keeps original level state constant when the signal generation high-low level that a checkout gear sends to controller is changed.

Described detecting element is a correlation optocoupler sensor, the transmitting terminal of sensor and receiving terminal lay respectively at the both sides of code-disc, light path between transmitting terminal and the receiving terminal is corresponding with the signal segment position of code-disc, and wherein first signal segment is resistance light section, and the secondary signal end is the printing opacity section.When resistance light section was between optocoupler sensor emission end and the receiving terminal, receiving terminal can't receive the signal that transmitting terminal sends, and just can send the signal of " breaking "; When the printing opacity section was between optocoupler sensor emission end and the receiving terminal, receiving terminal can receive the signal that transmitting terminal sends, and just can send the signal of " leading to ".The shaping treatment circuit sends corresponding low level or high level signal according to " leading to ", " breaking " signal.The reaction of correlation optocoupler sensor is relatively sensitiveer.

Described detecting element is reflective optocoupler sensor, the transmitting terminal of sensor and receiving terminal are positioned at the homonymy of code-disc, the light emitted road of transmitting terminal is corresponding with the signal segment position of code-disc, and wherein first signal segment is the reflecting surface section, and the secondary signal end is the non-reflecting surface section.When the reflecting surface section went to the sensor place, the light that transmitting terminal sends was reflected to receiving terminal, sent the signal of " leading to "; When the non-reflecting surface section went to the sensor place, the light that transmitting terminal sends can not be reflected to receiving terminal, can send the signal of " breaking ".The transmitting terminal of reflective optocoupler sensor and receiving terminal do not need to be arranged on the code-disc both sides, install more convenient.

Described detecting element is a Hall element, and Hall element is located at code-disc one side, and the magnetic circuit that it produced is corresponding with the signal segment position of code-disc, and wherein first signal segment is a permeable segments, and the secondary signal end is non-permeable segments.When permeable segments and non-permeable segments are passed through Hall element alternately, magnetic field is changed, thereby produce different signals.The good environmental adaptability of Hall element, vibration resistance, the pollution or the corrosion of not being afraid of dust, greasy dirt, steam and salt fog etc.

Described code-disc comprises circular disk body and is located on circular disk body one side perpendicular to disk, center and the circle disk center cylinder on same straight line that the constant spacing of being separated by on the cylindrical wall offers the identical port of some sizes.Adopt under the situation of correlation optocoupler sensor, cylinder adopts and makes every luminescent material, and port forms the printing opacity section, and part forms resistance light section between port, and the transmitting terminal of sensor and receiving terminal lay respectively at the inboard and the outside of cylinder; Adopt under the reflective optocoupler sensor situation, cylinder adopts the material with certain diffuse reflectance to make, and port forms the non-reflecting surface section, and part forms the reflecting surface section between port, and the transmitting terminal of sensor and receiving terminal are positioned at the cylinder outside; Adopt under the situation of Hall element, cylinder adopts the metal material with certain permeability to make, and port forms non-permeable segments, and part forms permeable segments between port, and sensor is positioned at the outside of cylinder.

Described drive unit comprises motor and by motor-driven transmission mechanism, described code-disc is located on the motor shaft, code-disc central authorities are provided with the collar, the collar is made up of a plurality of cover ring plates, be provided with the gap between per two cover ring plates, the outer ring of the collar is wound with the lock ring ring, and motor shaft is plugged in the collar and code-disc is fixed on the motor shaft.Each cover ring plate all can tilt independently to the inside, can be close to motor shaft better.The lock ring ring is made with the metal material of good-extensibility, after motor shaft inserts the collar, clamps the lock ring ring, and code-disc is fixed on the motor shaft reliably.

Described detecting element is located on the testing circuit plate, also is provided with connecting pin on the testing circuit plate, and detecting element is electrically connected with connecting pin.The testing circuit plate provides a reliable fixed-site to detecting element, and connecting pin is convenient to lead detecting element be linked to each other with other circuit parts.

Described control system includes base plate, and motor is fixed on the base plate by a support, and the testing circuit plate also is fixed on this support, and a side of base plate is provided with control panel and power panel, and described controller and shaping treatment circuit are located on the control panel.Power panel is given all circuit part power supplies, and control panel and power panel are positioned at a place, are convenient to wiring and installation.

Beneficial effect: the utility model has the checkout gear of certain phase difference by two output signals are set, reached the purpose that can detect the garage door direction of motion, speed and position simultaneously, stop or external force is disturbed and also can accurately be judged the stroke of garage door after producing motion at garage door, eliminated accumulated error, reliable operation, easy for installation.

[description of drawings]

Fig. 1 is the overall structure schematic diagram that has garage door of the present utility model;

Fig. 2 is a structural representation of the present utility model;

Fig. 3 is code-disc of the present utility model, drive unit and checkout gear structural representation;

Fig. 4 is code-disc of the present utility model and checkout gear structural representation;

Fig. 5 is the structural representation of the utility model code-disc;

Fig. 6 is the structural representation of the utility model testing circuit plate;

Fig. 7 is a functional block diagram of the present utility model;

Fig. 8 is the circuit theory diagrams of the utility model checkout gear;

Fig. 9 is the signal waveforms of exporting in the utility model checkout gear course of work.

Figure 10 is the schematic flow sheet that the utility model is realized the counting of motor positive and inverse and both direction.

Figure 11 is that the utility model is implemented in the schematic flow sheet that the process of closing the door is eliminated cumulative errors.

Figure 12 is that the utility model is implemented in the schematic flow sheet that the process of opening the door is eliminated cumulative errors.

[specific embodiment]

Garage door control system shown in Fig. 2,3 with dipulse signal supervisory instrument, a side of base plate 209 is equipped with power panel 201 and control panel 202, and motor 208 is fixed on the base plate 209 by support 207, and worm screw 211 and gear train 212 are transmission mechanism.Testing circuit plate 206 also is fixed on the support 207, and detecting element 205 and connecting pin 213 (Fig. 6) are installed on the testing circuit plate 206, and both link to each other by the circuit at the back side, and connecting pin 213 links to each other by signal connecting line 204 with control panel.Include controller and shaping treatment circuit on the control panel 202.

Be with code-disc 203 on the motor shaft 210, code-disc 203 comprises circular disk body and is located on circular disk body one side perpendicular to disk, center and the circle disk center cylinder (Fig. 5) on same straight line, the constant spacing of being separated by on the cylindrical wall offers the identical port of some sizes 215, port 215 forms first signal segment, and the cylindrical portions may 214 between port forms the secondary signal section.Code-disc central authorities are provided with the collar 216, and the collar is made up of a plurality of cover ring plates, and per two covers are provided with the gap between the ring plates, and the outer ring of the collar is wound with lock ring ring (not shown), and motor shaft is plugged in the collar and code-disc is fixed on the motor shaft 210.Figure 4 shows that detecting element 205 adopts the situation of correlation optocoupler sensor, during installation, the signal segment that makes code-disc 203 is between the transmitting terminal and receiving terminal of correlation optocoupler sensor.If all shared angles of first signal segment all equate to be a on the code-disc, all shared angles of secondary signal section also all equate to be b, c is the differential seat angle in the relative code-disc center of circle, the position of two detecting elements, i is an arbitrary integer, then need satisfy following condition: c=i* (a+b)+d, as a〉during b, 0＜d＜b or b＜d＜a or a＜d＜a+b; When a＜b, 0＜d＜a or a＜d＜b or b＜d＜a+b.When reality was used, i can get 0, and the value of a and b is as far as possible little, and the value of d is got the median of two border conditions.Detecting element also can use reflective optocoupler sensor, Hall element etc., and other can turn to the sensor that diverse location sends unlike signal according to code-disc.

When adopting the optocoupler sensor, the test section circuit diagram as shown in Figure 8, power supply is by behind the current-limiting resistance, give pin 814,816,815,817 power supplies of two optocoupler sensor 803,804 transmitting terminals respectively, transmitting terminal is emitted beam, when having resistance light thing between optocoupler sensor 803,804 transmitting terminals and the receiving terminal, the pin 818,819,820,821 of receiving terminal ends, and the colelctor electrode 811 of transistor 809,810 and 812 produces high level; When not hindering the light thing between optocoupler sensor 803,804 transmitting terminals and the receiving terminal, pin 818,819,820,821 conductings of receiving terminal, the colelctor electrode 811 of transistor 809,810 and 812 produces low level, thereby reach according to the code-disc state to exporting high level and low level purpose respectively as the single-chip microcomputer 813 of controller, and generation waveform as shown in Figure 9, between two groups of waveforms 1901,2902 phase difference is arranged, be the having when changing of one of them waveform, another waveform is in stable level state.

Have garage door of the present utility model as shown in Figure 1, the user is by the forward or reverse of motor in the wall controlled switch 702 control heads 102, forward and reverse rotation of head motor, drive turbine 212 by chain drive 103 and connecting rod 104 push-and-pull garage doors 105 by scroll bar 211, thereby realize the switch of garage door, the critical piece of control system all is loaded in the head.

The functional structure chart that Fig. 7 in use may have for the utility model, it also comprises CPU element 704, as the core of controller, accepts the signal of each input module, and according to the sending controling instruction of each signal; IR intrusion detector 701, whether be responsible for monitoring has object in student side, if object is being arranged, then notice is controlled the shutdown switch door; Remote controller 703 is convenient to the remote control switch door; Wall controlled switch 702 is installed on the wall, and the user is by wall controlled switch button operation door opener; Indicator lamp 705, the working condition of reaction door; Power and transmission device 707 mainly comprise above-mentioned drive unit, directly the switch of driving gate; Motion state checkout gear 706 comprises above-mentioned code-disc, checkout gear etc., is responsible for feedback motor movement situation, and then the moving situation of reaction door.Remote controller and wall controlled switch all are instruction inputting device.

Controller includes signal phase comparison module and signal pulse counting module, the available software mode realizes, the process that detects motor steering and rotating speed is as shown in figure 10: when the code-disc rotation process of motor shaft end, colelctor electrode place 809,810 can produce the waveform that has phase difference as Fig. 9.Waveform directly is transferred to two pins of single-chip microcomputer.The timer 1 of single-chip microcomputer 813 is as timer work, open capture function, find the level of waveform 1901 (waveform 1) when single-chip microcomputer the timing value of timer 1 takes place to catch when the edge changes as trailing edge, and the level of horse back detection waveform 2902 (waveform 2), if the level of waveform 2 is high level, single-chip microcomputer judges that motor is to change towards one of them direction (direction 1) so, and the counter of this direction increases by 1, if this direction is caught for the first time, then withdraw from, otherwise calculate the rotating speed of this direction; If when the level of single-chip microcomputer detection waveform 2, find it is low level, single-chip microcomputer judges that motor is to change towards another one direction (direction 2) so, and the counter of this direction increase by 1, if this direction is caught for the first time, then withdraw from, otherwise calculate the rotating speed of this direction; By above-mentioned deterministic process, we can obtain the direction of motion and displacement and the rotating speed of door in the open and close process.

The utility model is implemented in the process of closing the door and open the door and eliminates the stroke cumulative errors, obtains the process of accurate position of door respectively as Figure 11, shown in Figure 12.At closing time, whether the motor detecting gate is obstructed in the motion process of closing the door, if be not obstructed, continues to carry out the action of closing the door.If be obstructed, single-chip microcomputer judges whether the current position of being obstructed has arrived the bottom of stroke, if arrive bottom of travel, single-chip microcomputer judges that this action safety of closing the door finishes so, satisfies disable motor.If do not arrive bottom of travel when being obstructed, disable motor so at once, and wait for that door is static.The static back of door is according to the counters count of the both direction moving displacement of both direction that opens the door, closes the door, and carries out weighted calculation, obtains the accurate position when the Qianmen.Carry out the action of closing the door subsequently, till door arrives the stroke upper limit.

Same, when opening the door, whether the motor detecting gate is obstructed in the motion process that opens the door, if be not obstructed, continues to carry out the action of opening the door.If be obstructed, single-chip microcomputer is judged the current whether top of stroke on earth, position of being obstructed, if arrive top of stroke, single-chip microcomputer judges that this action safety of opening the door finishes so, satisfies disable motor.If when being obstructed, do not arrive top of stroke, disable motor so at once, and wait for that door is static.The static back of door is according to the counters count of the both direction moving displacement of both direction that opens the door, closes the door, and carries out weighted calculation, obtains the accurate position when the Qianmen.Carry out the action of opening the door subsequently, till door arrives the stroke upper limit.

Claims (10)

1, garage door control system with dipulse signal supervisory instrument, comprise and drive the drive unit that garage door moves up and down, the controller of accessory drive work and the operational order input unit that links to each other with controller, it is characterized in that: described control system also comprises code-disc and cooperates two checkout gears that can send detectable signal of code-disc, code-disc and drive unit are in transmission connection, code-disc is provided with first signal segment and the secondary signal section that is interspersed along circumference, checkout gear sends high level and low level signal to controller respectively during corresponding to first signal segment and secondary signal section, two lines between the position of two checkout gears and the code-disc center of circle have angle, when signal generation high-low level conversion that a checkout gear sends to controller, the signal that another checkout gear sends to controller keeps original level state constant, and controller comprises signal phase comparison module and signal pulse counting module.

2, the garage door control system with dipulse signal supervisory instrument according to claim 1 is characterized in that: described checkout gear comprises detecting element and the shaping treatment circuit that detecting element is linked to each other with controller.

3, the garage door control system with dipulse signal supervisory instrument according to claim 2, it is characterized in that: all shared angles of first signal segment all equate to be a on the described code-disc, all shared angles of secondary signal section also all equate to be b, if c is the angle that the position of two detecting elements is become with code-disc circle line, i is an arbitrary integer, n is the number of code-disc circumference signal segment, then c=i* (360/n)+360/4n ± min (a, b)/2.

4, the garage door control system with dipulse signal supervisory instrument according to claim 3, it is characterized in that: described detecting element is a correlation optocoupler sensor, the transmitting terminal of sensor and receiving terminal lay respectively at the both sides of code-disc, light path between transmitting terminal and the receiving terminal is corresponding with the signal segment position of code-disc, wherein first signal segment is resistance light section, and the secondary signal end is the printing opacity section.

5, the garage door control system with dipulse signal supervisory instrument according to claim 3, it is characterized in that: described detecting element is reflective optocoupler sensor, the transmitting terminal of sensor and receiving terminal are positioned at the homonymy of code-disc, the light emitted road of transmitting terminal is corresponding with the signal segment position of code-disc, wherein first signal segment is the reflecting surface section, and the secondary signal section is the non-reflecting surface section.

6, the garage door control system with dipulse signal supervisory instrument according to claim 3, it is characterized in that: described detecting element is a Hall element, Hall element is located at code-disc one side, its position is corresponding with the signal segment position of code-disc, wherein first signal segment is a permeable segments, and the secondary signal end is non-permeable segments.

7, according to claim 4 or 5 or 6 described garage door control systems with dipulse signal supervisory instrument, it is characterized in that: described code-disc comprises circular disk body and is located on circular disk body one side perpendicular to disk, center and the circle disk center cylinder on same straight line that the constant spacing of being separated by on the cylindrical wall offers the identical port of some sizes.

8, the garage door control system with dipulse signal supervisory instrument according to claim 3, it is characterized in that: described drive unit comprises motor and by motor-driven transmission mechanism, described code-disc is located on the motor shaft, code-disc central authorities are provided with the collar, the collar is made up of a plurality of cover ring plates, per two covers are provided with the gap between the ring plates, and the outer ring of the collar is wound with the lock ring ring, and motor shaft is plugged in the collar and code-disc is fixed on the motor shaft.

9, the garage door control system with dipulse signal supervisory instrument according to claim 3 is characterized in that: described detecting element is located on the testing circuit plate, also is provided with connecting pin on the testing circuit plate, and detecting element is electrically connected with connecting pin.

10, the garage door control system with dipulse signal supervisory instrument according to claim 9, it is characterized in that: described control system includes base plate, motor is fixed on the base plate by a support, the testing circuit plate also is fixed on this support, one side of base plate is provided with control panel and power panel, and described controller and shaping treatment circuit are located on the control panel.

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