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Single track brush-based position encoder for rotating shaft. The majority of components of halcomatser master end unit are identical to the slave end unit, and so only the slave end unit will be described here as illustrative of both. The present inventor’s earlier 22000 application, GB, discloses a new type of covering system whereby a leading portion of a retractable screen is mounted to a number of longitudinal wires via clamping systems releaseably attached to the wires.
Each end unit is therefore communicatively coupled with the control unit so that it can both send and receive signals. The retractable awning according to claim 2, wherein said control unit is 2200 to operate according to the sensed tension and controls the motor.
However, with the much larger screens to which this invention applies, there is a much larger quantity of screen fabric to roll up and a much higher tension must be applied to the screen during deployment and retraction.
The motor is then stopped. Cutler, Daniel Geneva, CH. Both rollers comprise a toothed portion not shown which meshes with the worm gear 8. However, it may also be monitored by other means such as by optical distance measuring e.
This may be achieved galcomaster controlling the motors such that a predetermined degree of stretch is applied to the screen. Other covering systems have a covering screen attached to moveable wires that are operated to extend or retract the screen. It also sends appropriate motion commands to the slave end unit 21 over an RS communications channel via a data cable 57 and respective connections 62 It is desired that the master and slave units keep synchronised i.
However, preferably each motor individually communicates with and is controlled by the main control unit. Device for covering a swimming pool, by hoisting a film by means of a movable winding drum which is moved electrically. An alternative arrangement is shown in FIG.
The position and velocity of the screen 3 can be monitored by means of rotary halcomzster in the storage roller and in the winches in the same way as in the first embodiment. The motion control PCB 34 has a local controller 39which receives commands from the external controller 45 via the interface 37 and controls operation of the stationary AC motor 35 via a relay. Dual drive pool cover. A retractable screen as claimed in claim 1wherein the motors are independently controlled.
A retractable awning as claimed in 22000 1wherein the first motors are arranged halcomastter pull a leading edge of the screen and the second motor is arranged to pull a trailing edge of the screen. The master local controller 64 receives motion commands from the motion control PCB halcmoaster through communications connector 65 and information from the rotary encoder 11 M as to the motion of the halcomster unit along the cable.
Other arrangements will work equally well. 22000, the clamping systems can slip along wires e.
As the tension in the screen varies, so does the load applied to the end supports. It will be apparent that features described above in relation to a covering apparatus may be equally applicable to the control system or method, and vice versa. It also communicates directly with master end unit 20 in order to control the DC motor 9 on one side of the transverse bar. However, it is particularly preferred for a plurality of first motors to be provided, most preferably one for each tensile wire.
Slave end unit 21 is provided with a slave PCB 50which provides power to motor 9 S via a local power management unit, motor driver and motor connector 51 in a similar manner to the master end unit The motion control PCB 34 sends a command comprising a destination position on cable 4 to master local controller 64 of the master PCB 60 via the RS communications channel over cable If the tension sensor senses that the tension has exceeded a certain threshold limit, the screen 3 can be automatically retracted so as to prevent the screen 3 from being damaged through excessive tension.
A major problem with all of these types of covering is providing sufficient tension in the screen so that the canopy does not sway unduly or flap in the wind. The motor drives the roller system 6 via worm gear 8 and causes it to move along cable 4. Master 220 controller 64 also receives information regarding the ualcomaster of the storage roller, and determines the drive velocity of the roller system in accordance with this so that the storage roller and end unit velocities remain synchronised, and so that the screen is maintained under appropriate tension during retraction.
It is desirable for canopies and awnings to be easily extended and retracted, whilst at the same time, the extended canopy must be strong enough to resist wind loading, etc. The storage roller 2 and cable ends halcomsster attached to a wall.
A SumoBrain Solutions Company.
CN101675198A – retractable awning – Google Patents
If the slave overcomes the torque obstacles, it will start to close the gap with the master end unit. This activates the bidirectional bumper of the limit switch and causes it to send a signal to a respective local controller 5464 of the end unit described in more detail below with reference to FIG. This information is received by the slave local controller 54which is in position loop mode, and consequently operates its motor 9 S to move the slave end unit to the same distance along its cable as the master end unit.
The end unit’s position command is then maintained slightly under that value in order to keep the awning material taut. Also, the tension required to maintain a large screen sufficiently taut at such a reduced angle is prohibitively large.
Therefore data from the tension meter does not have to be fed through wires in the screen. Small variations in tension are amplified and the effects are far more severe, and therefore it is much more important in larger canopies not only to ensure that tension is applied and maintained throughout deployment and retraction, but also to ensure that the tension is applied evenly to both sides of the screen.
EAN – Simu Halco Master Pro Und Pro/L Regensensor | UPC Lookup
Master local controller 64 receives this data and limits the drive velocity of the roller system in accordance with this so that the storage roller and end unit velocities remain synchronised. A halcomqster command limiter prevents the current command from exceeding a predetermined maximum value.
In a most typical arrangement of the invention there will be provided an extendible canopy disposed on a storage roller e.