FR2691746A1 - Device generating signals characteristic of the movement of a closure means. - Google Patents

Abstract

The signal-generating device consists of a friction element (11) which is integral with the closure means, for example a roller shutter (2), this friction element rubbing on a fixed rigid element capable of being driven in vibration by the friction element and extending over at least the length of the travel of the closure means, and of a vibration sensor (7) mounted on the rigid element and delivering a signal characteristic of these vibrations. The vibrating rigid element can be made up of a blade (9) fixed in one of the slides of the roller shutter or of the slide itself (3). The signals delivered by the sensor can be used for checking the control of the closure means and for detecting attempts at entry.

Description

The subject of the present invention is a general device

  signal generator characteristic of the movement of a closing means, such as a shutter, rollable or not,

blind or door.

  Such generators are used for the command and control of the movement of closing means, in particular for the detection of obstacles, the detection of intrusion attempts and the control of the stopping of the

  closing means at the end of the stroke.

  A signal generator device associated with a shutter

  motorized roller is described in patent FR 2 657 646.

  This generator includes a pulley mounted on the axis

  of rolling shutter and on which is

  rolled a flexible element whose other end is re-

  linked to the end of the roller shutter, so that the unwinding of the shutter drives the pulley whose axis is mechanically connected to a signal generator, by

  example a synchronous motor The generator, arranged

  literally on the winding axis, therefore requires a

  space that is not always available in a

  window soldering or door frame On the other hand, the flexible element connecting the generator pulley to the final bar of the roller shutter is unattractive

  and this flexible element can be accidentally hung-

  lying or deteriorated due to its unprotected passage,

  such an incident being likely to seriously disturb

  the operation of the roller shutter.

  The object of the present invention is to obviate these drawbacks.

  come. The signal generator device according to the invention

  is characterized in that it comprises a solider

  of the closing means, a fixed rigid element

  likely to be driven in vibration by the friction

  and extending over at least the length of the run-

  of the closing means so that the friction

  teur rubs on the rigid element during movement of the closure means, and a vibration sensor rigidly mounted on the rigid element and delivering a signal

characteristic of these vibrations.

  The closure means generally comprise guide means in the form of a slide, so that the wiper can move in the slide in

  being hidden and perfectly protected.

  The rigid vibrating element can be constituted by the slide itself or by the guide slide of a tilting or side-moving door or by a

  added element on this slide or this slide.

  The subject of the invention is also a motor vehicle closure

  risée equipped with at least one device generating

  signals according to the invention, this closure being charac-

  characterized in that it further comprises means

  electronic signal processing from the cape

  vibration generator and control means of the

  motors for closing means in operation

  tion of orders received from the processing means of the

general.

  The control means can provide both the ar-

  end of closure, when it encounters an obsession

  tackle, that the triggering of an alarm in the event of

  intrusion attempt, as well as the closure stop at the end of the race and / or in intermediate positions,

  using a toothed or grooved vibrating element allows

  both to obtain a vibration with periodic variations corresponding to its teeth or grooves and therefore characteristic of the position of the closure. When controlling a roller shutter with stackable slats, it is possible to obtain a stop in the open position

  and a stop in a stacked position by means of two rubs

  tors, one of which is located on the lower blade and the other on the blade entering the slide just

  before the lower blade comes to a stop.

  The use of two vibration sensors, one per slide, and two walkers makes it possible to define a

  intermediate position and / or more functional areas

  operation. The accompanying drawing shows, by way of example,

embodiments of the invention.

  Figure 1 is a sectional view of a roller shutter

  equipped with a generator according to the invention.

  Figure 2 shows a detail of Figure 1.

  FIG. 3 represents an alternative embodiment of the

figure 2.

  FIG. 4 represents the detail, in vertical section along IV-IV of FIG. 5, of an example of execution of

the vibrating element and the wiper.

  Figure 5 is a sectional view along V-V of Figure 4. Figures 6 and 7 show two other forms

  of the vibrating element.

  FIG. 8 represents the diagram of the means of milking

  signal and means for controlling the rolling means

lant shown in Figure 1.

  Figure 9 shows a first embodiment

  of the reference signal generator.

  FIG. 10 represents a simplified embodiment

  from the reference signal generator.

  The figure it represents the main program of

control means.

  Figure 12 shows an alternative subroutine

  for controlling the shutter shutter.

  FIG. 13 represents a variant of the subroutine for triggering an alarm in the event of an intrusion attempt. FIG. 14 represents the decoding circuit of a

  variant with two sensors.

  FIG. 15 represents the diagram of a cable execution

of the control device.

  Figure 16 shows a variant of the main program.

  cipal for the case of a signal transmission with varia-

periodic statements.

  Figure 17 shows the counting routine

variations.

  Figure 18 shows the alarm routine.

  FIG. 19 represents a modification of the program of FIG. 16 making it possible to obtain intermediate stop positions. Figure 20 shows the counting routine

  of the variant shown in Figure 19.

  FIG. 1 represents, in vertical section, a clutch

  window 1 in which a roller shutter is mounted

  lant 2 guided in a pair of runners 3 and roll up

  lant on a winding axis 4 mounted in a housing 5 and driven by a motor not shown The motor has two windings ensuring the rotation of the shaft

  winding 4 in two opposite directions The roller shutter

  lant 2 is shown here in a fully unwrapped position

  lée Its last blade is provided with an end-of-travel stop 6 constituted by a lug intended to abut against the top of the recess 1 The slide 3 is extended by a part 3 a in the housing 5 and at the end of this extension 3a is rigidly fixed a vibration sensor 7 On the last blade 8 of the

  a roller shutter is also fixed with a wiper, for example

  ple a steel blade whose free end rubs on one of the inner faces of the slide whose

  surface has been roughened or grainy by sandblasting.

  When moving roller shutter 2, the friction

  of the wiper it on the slide 3 generates vibrations

  which are transmitted by the slide to the vibration sensor 7 The vibration sensor can be of the accelerometer or piezo or

  ferroelectric, micro-machined silicon type with electro

  integrated processing control, for example a sensor

  marketed by MURATA under the trade name

  ciale PKS-4 A. The signals emitted by the sensor 7 are processed by a control device 13 controlling the motor of the winding axis 4 The installation is completed by a remote control 14, whether or not galvanically connected to the control electronics 13 and comprising keys

  for controlling the ascent, descent and ar-

shutter shutter.

  Instead of rubbing directly on the slide, the

  wiper can rub on a vibrating element auxiliai-

  re The detail of an embodiment is shown in Figure 2 The vibrating element consists of a steel blade 9 fixed on one of the inner faces 10 of

  the slide 3 and on which a wiper 11 rubs.

  The opposite face 12 of the slide is smooth and the bottom

  nière blade 8 is provided with a pad 15 sliding on the face 12 In the case of Figure 2, the stop 6 comes

  abut against the doorway when the flap comes in

  high position, the vibrations stop and the detector 7 detects the absence of vibration and controls the stopping of the

engine.

  3 shows an alternative embodiment of Figure 2, in which the stop 6 is removed and the vibrating element 9 is shorter The high position

  of the shutter is reached when the wiper leaves the vibrating element 9 This execution allows the stop of the

  let smooth, without sudden pull It is particularly advantageous in the case of fragile roller shutters.

  Figures 4 and 5 show, in more detail, an embodiment and mounting of the wiper 11 This is fixed by riveting, welding or clipping at a point

  17 inside the last tubular blade 8 of the

  let rolling and cross this blade through a slot 18 The wiper it has a curved end lla in contact with the vibrating element formed here by the

slide 3 itself.

  In FIG. 6, the vibrating element consists of a rough blade 19 fixed on the slide by means of a

adhesive 20.

  In the execution according to FIG. 7, the rough blade 19

  is replaced by a blade 21 having a den-

  telé 22 This profile could also be crenellated Such a profile allows a periodic variation of

  the amplitude of the vibrations, each variation corresponds

  to a tooth or a niche Counting these values

  riations determines the position of the wiper,

  that is to say the position of the roller shutter.

  The principle described above is applicable to any means of closure guided in its movement, whether

  either by a slide, a rail or hinges.

  The control device 13 is shown diagrammatically

  only in figure 8 It consists of an electro-

  processing 23 and control electronics

  of 24 for motor control 25.

  The processing electronics include an amplifier-

  demodulator 26, a reference generator 27 and a comparator 28 The function of the amplifier-demodulator 26 is to receive the signal delivered by the sensor, to amplify it, possibly to rectify it, to

  smooth and deliver to comparator 28 to which

  plicated, on the other hand, a reference value delivered

  by the reference generator 27.

  The reference generator 27 can be constituted by a simple voltage divider Rl / R 2, as shown

  in Figure 10, delivering a fixed voltage value.

  The reference generator 27 can also be designed

  to deliver a reference value derived from the value

  their of the signal received, as shown in Figure 9.

  In this case, it consists of a voltage divider

  Rl / R 2 in parallel with a capacitor C, all while

  laughs with a resistance R 3 to which the si is applied

  general sensed This allows to take into account the variation of the sensed signal due to aging of the sensor or to any other influence and to adapt automatically to

  signal level corresponding to the use.

  The comparator 28 has the function of comparing the value of the signal received from the amplifier-demodulator 26 with

  that received from the reference generator 27 and from

  check a logic signal (O or 1) according to the relative level

  compared values In the particular case, the com-

  parateur 28 delivers signal 1 when the value of

  signal received is greater than the reference value.

  The control electronics 24 includes a microprocessor

  sor 29 comprising a main program (figure 11),

  inputs DM (request for climb), DD (request for des-

  cente), DS (stop request), SM outputs (climb output), SD (descent output), SA (alarm) and a

  SL input (logic output) connected to the output of the compa-

  rator 28 Its main function is to pass the outputs SM, SD, SA to O, when the signal received in SL = 0. As shown in the drawing, the microprocessor 29 also has a fourth input D Pl (request for intermediate position ), a position counter 291 and a reaction time counter 292, a memory 294 for storing the alarm reaction time or the minimum position variation for the triggering of an alarm and a memory 295 for storing the value of the position counter These elements are used in a more advanced embodiment of the invention which will be described in relation to the figures.

16 and 17.

  The control electronics 24 further comprises an or-

  power switching gane 30 connected to the PN network and to each of the windings direction 1, direction 2 of the motor, by outputs M and D, as well as to an alarm 31

  by an output A, and at the outputs SM, SD, SA of the micro-

  processor 29 Its function is to interrupt the power supply

  tation on M, D and A, when the outputs SM, SD and SA = O The control device 13 also comprises a

  stabilized supply 32 for the supply of diff

different components.

  The execution mode corresponding to the program represented

  as shown in the figure, it includes two end of travel or obstacle indicators, up and down FCM

  and FCD positioned high by the subroutines-

  stop measurements, respectively in the direction of ascent (M) and descent (D) and reset to zero during a

movement in the opposite direction.

  The operation according to the program represented in FIG. 11 is as follows: The first instruction performs the cyclic scanning of the inputs DM, DD, DS, SL of the microprocessor If DS = 1 (stop request activated), the outputs SM and SD are

  resets and the program loops.

  If DS = O (stop request not activated), the program then tests the DM input (climb request) If DM = 1, the following instruction tests the FCM indicator If

  FCM = 1 (flap in high position), the program

  cle If FCM = 0, the following instruction changes the SM output to 1, then calls the stop subroutine which tests the SL input, ie the signal from the sensor 7 If SL = 1 (presence of a vibration), the following instruction sets the limit switch low to 0 (FCD = 0) and the program loops without giving an ascent command, since the presence of a vibration signal means that the flap has not encountered any obstacle or that its wiper has not yet left the vibrating element 19 (FIG. 3), that is to say

  that the shutter has not yet reached its upper position.

  If SL = O (absence of vibration), the following instruction

  takes you to O the SM output, the absence of vibration signifying that the roller shutter has encountered an obstacle or that it has reached its highest point (Figures 2 or 3) and

sets the FCM flag to 1.

  If the DM test gives 0, the program tests the input

  DD If DD = 1 (descent request), the following instruction

  vante tests the FCD indicator If FCD = 1 (shutter already in the low position), the program loops without giving a stop command If FCD = 0, the following instruction sets SD = 1 and the following instruction tests the output SL If SL = O (no vibration), the following instruction35 sets the SD output to O (stop command) and the FCD indicator to 1 If SL = 1, the FCM indicator is set to O and the

  loop-back program without giving a descent command.

  If the test gives DD = O (no request to descend

  te), the alarm subroutine tests the SL input If SL = 0, no alarm is triggered, because it means that the shutter is stationary and that there has been no intrusion attempt. if the test gives SL = 1, this means that the shutter moves in the absence of an up and down order and the exit

  SA goes to 1 which has the effect of triggering the alarm.

  This embodiment therefore allows stopping at the end

  at the top, bottom and in the event of

  spots, by detection of the interruption of vibrations, as well as the detection of an intrusion attempt by

appearance of vibrations.

  In a simplified form, the alarm subroutine

could be deleted.

  According to another embodiment, the control electronics 24 is also provided to test that the

  change of the logical order on the SL output of the

  parateur remains a certain time before suspending the transmission of direction 1 / direction 2 movement orders or

  before transmitting an alarm order.

  In this case, the Rise and Des- stop subroutines

  cente of the figure there are replaced by the subpro-

  gram according to FIG. 12 and the microprocessor comprises a memory 293 storing the value of stop reaction time and a counter of reaction time to stop 292. According to FIG. 12, if the test of the logic output gives SL = 0, instruction 33 increments the stop reaction time counter 292 The following instruction is

  a test instruction 34 which compares the value comp-

  ted to the memorized value If the counted value is greater than the memorized value, then only the SM and SD outputs are set to zero by the following instruction and the program loops Simultaneously,

  instruction 35 resets counter 292 to O.

  However, as long as the test instruction

  34 tests that the counted value is less than the value

  memorized them, the program loops without transmission

stop order.

  The alarm subroutine in Figure 11 is also

  completed as shown in figure 13, ma-

  similar to the shutdown subroutine of FIG. 12 The microprocessor includes a memory 294 storing

  the alarm reaction time value.

  If SL = 1, instruction 36 increments counter 292

  and instruction 37 compares the counted value with the value

  stored in memory 294 If the value comp-

  t is greater than the memorized value, the SA output goes to 1 and an alarm is triggered Simultaneously,

  instruction 38 resets the counter to 292 at 0.

  This embodiment makes it possible to avoid stopping or triggering alarms resulting from false faults, such as those caused by shocks, hard points

  fleeting obstacles in the slide.

  In the case of closing systems with stackable or equivalent blades, the safety-stop device which has just been described leads to the stopping of the descent in the non-stacked blade position (so-called "openwork" position if

  the wiper was placed on the lower blade of the iron

measurement (blade 8).

  If the user prefers a stop in a stacked position

  (fully closed), a second

  rubbing on the blade penetrating the slide 3, in contact with the vibration element, just before

  the lower blade does not come to a stop This variant does not

  no modification of algorithms and cap-

  tor. Another interesting embodiment is to

  use two vibration sensors, one per slide.

  This embodiment makes it possible to define a posi-

  tion and / or several operating zones-

  The intermediate position here corresponds to the po-

"openwork" section described above.

  A first wiper A is disposed on the lower blade 8 of the flap, on the side of a first slide 3 A (or

  the corresponding vibration element) The second friction

  tor B is placed on the side of the slide 3 B (or of the corresponding vibration element) and it is placed on the blade penetrating the slide 3 B (or coming into contact with the corresponding vibration element)

  moment when the flap reaches the intermediate position.

  FIG. 14 represents the decoding of the four usable zones SLA and SLB represent the signals

  verified by each of the sensors in the presence of vibrations. The algorithms for exploiting this information are within the reach of those skilled in the art.

  If there is a signal on SLA and SLB (A = 1), this means that the lower blade of the shutter is still moving

  while the other blade is already in the slides.

  This corresponds to a very small transition zone between the stacking of the blades and the opening. If we have a signal on SLB only then B = 1, which

* corresponds to movement in the stacking area.

  If we have a signal on SLA only then C = 1, which

  corresponds to a movement in the opening area.

  If there is no signal then D = 1 In this case, it is necessary to test if there is a climb order (SM) or

of Descent (SD).

  If SM = 1, it means that the shutter is in high stop.

  If SD = l, we can have two different situations se-

  lon the previous state of outputs B and C.

  If we had C = 1, D = 1 should be interpreted as the pre-

  the presence of an obstacle preventing the shutter from lowering.

  If we had B = 1, D = 1 means that the shutter blades

  are completely stacked and the flap is therefore to-

tightly closed.

  FIG. 15 represents a particular embodiment.

  particularly simple logic of the device

  command 13 indicated by the command control algorithms

  Figures 11 and 12 (alarm function excluded).

  This embodiment uses wired logic and requires only three current integrated circuits (for example TL 084, MC 14538 B, 74 C 74) possibly replaceable by a single circuit of the ASIC type A

  unipolar 71 solid state power supply provides

  supply voltage + Vcc to the entire assembly This voltage is halved to allow, at the output of a follower 72, a potential reference used

  as virtual ground for the analog part of the world

floor.

  The piezoelectric detector 7 sees its output signal

  tie amplified by two operational amplifiers 74

  and 75, with elimination of possible components

  continuous. The amplified signal is applied to the input (+) of an operational amplifier 76 which is used in comparator mode. The output levels of comparator 76 then correspond to the saturation voltages of the operational amplifier and are sufficiently close to + Vcc and

  0 to attack a CMOS type logic Each vibra-

  detected and amplified signal causes the output of comparator 76 to pass (equivalent to signal SL of

  scheduled execution) in the "high" state as long as the

  amplified calf is greater than a reference voltage applied to the input (-) of comparator 76 by a bridge

resistive divider.

  Amplifiers 72, 73, 74, 75, 76 belong to the same integrated circuit (for example TL 084) The output of comparator 76 is applied to a monostable 77 (retriggerable one shot, for example MC 14538 B) whose output Q * goes low for a fixed duration T when input A undergoes a transition from the "low" state to the "high" state This duration T is always counted from the last rising transition of the input if several pulses are applied to it. The duration T is chosen so as to be greater than the

  maximum time separating two pulses during movement-

  ment of the wiper on the vibration element The output Q * therefore returns to the high state only if the vibrations disappear for a period greater than T.

  In this case, two flip-flops 78 and 79, of type D Flip-

  Flop (example MM 74 C 74) record the present state

  on the Data input This state is taken from the collectors

  tors of two transistors 80 and 81 Either of the transistors is conductive in the event of movement In the up direction SM, the transistor 80 is conductive In

  the down direction SD, the transistor 81 is conductive.

  The collector of the conductive transistor is in the "low" state while the collector of the blocked transistor is

in the "high" state.

  The flip-flop 78 or 79 therefore records a "low" state on its output Q * if the vibration ceases while the direction SM

or SD is activated.

  This has the effect of blocking the conduction of the transis-

corresponding tor.

  This blocked state is maintained as long as the other transits

  tor has not been made conductive, so as long as the utility

  player did not give a movement order in the

opposite.

  When the other transistor is made conductive, the passage to the "low" state of its collector causes an action to reset to the "high" state of the output Q * of the

  switches by action on its Preset input.

  The circuit also includes a three-position switch 84: DD, STOP (intermediate position) and DM

  controlled by remote control 14.

  85 and 86 denote transit diodes or other devices

  protective devices intended to avoid induced variations in potential of high amplitude on the emitter of a transistor not connected to ground by the switch 84. We will now describe, in relation to FIGS. 16, 17 and 18, a form d execution using a serrated or grooved vibrating element such as the vibrating element 21

in Figure 7.

  In this case, the sensor 7 is provided to transmit to the

  minus a signal of higher value at the passage of each

  that tooth or slot and the reference value provided by the reference generator 27 of the electronics of

  treatment 23 is fixed so that the electronic-

  that processing only delivers a 0 or 1 signal on the SL output each time this stronger signal is received

  value These signals are counted by the po-

  sition 291 of microprocessor 29 and the number of si-

  emitted signals are stored in memory 295.

  The corresponding program is shown in the figure

  16 In addition to the instructions contained in the program-

  me basic according to Figure 11, the program according to Figure 16 includes the following instructions: a request and initialization (DI) instruction 39, an instruction 40 to scan the DD input (request

  descent), an instruction 41 to reset the

  position sensor 291, an instruction 42 for initialization

  tion of a counting subroutine, an instruction 43 for copying the value counted by the counter 291 into the position memory 295, an instruction 44 for reading the position counter 291, an instruction 45

  to compare the counted value with the memorized value

  entered in 295, an instruction 46 for initialization of the counting subroutine, an instruction 47 for

  parison of the counted value with the memorized value, an instruction 48 for initialization of an ascent subroutine, an instruction 49 for testing the value

  counted by position counter 291 and an instruction

  tion 50 of initialization of the counting subroutine.

  Instructions 42, 46 and 50 initialize the same

counting subroutine.

  Instruction 45 tests whether the counted value is greater than

  greater than or equal to the value stored in memory

of position 295.

  Test instruction 47 tests whether the counted value is

  greater than or equal to the value memorized in position memory 295.

  Instruction 48 allows the shutter to be raised if it

ci encountered an obstacle.30

  Instruction 49 tests whether the counted value is less than

greater than or equal to 0.

  The program runs as shown in Figure 16

  and a more detailed description is considered

superfluous.

  This form of execution allows, in the case of the-

  cente of the rolling shutter, to distinguish the arrival in po-

  low position (closed position) of the finish on an ob-

  stacle and, in this case, activate the ascent routine 48 to clear the obstacle. The counting and alarm subroutines may or may not include instructions intended to prevent the sending of a stop or alarm order respectively before the reception of a certain number of signals. counting and alarm are developed respectively in Figures 17 and 18 The subroutine

alarm is optional.

  The counting routine shown in Figure 17

  includes an instruction 51 for incrementing the comp-

  reaction time 292, 52 test instruction-

  as long as the reaction time counted by counter 292

  is greater than the reaction time stored in the met

  moire 294, an instruction 53 for incrementing / decrementing the position counter 291 and an instruction

  54 reaction time counter reset 54 The SM and SD outputs are set to zero if instruction 52 tests that the reaction time counted 25 is greater than the memorized value As underlined above, you can delete the instructions Sl and 52

  if we refrain from introducing a reaction time.

  The alarm subroutine represented in FIG. 18 includes an instruction 55 for incrementing an alarm reaction time counter, an instruction 56 testing whether the reaction time counted is greater than the stored time, a reset instruction 57 to zero

  of the alarm reaction time counter, an instruction

  tion 58 for incrementing a variation counter of the minimum alarm position, an instruction 59 testing whether the value counted by the variation counter of the mini alarm position is greater than or equal to a value stored in memory 294 and an instruction

  to reset the position variation counter

tion mini alarm.

  Instructions 55 and 56 can be deleted if

  renounces the introduction of a reaction time.

  This embodiment allows, as in the initial embodiment, to avoid stops or

  alarms resulting from false faults.

  The subroutines according to Figures 17 and 18 can

  be used together or separately.

  The characteristic position signals obtained by means of a toothed or grooved vibrating element, as described in the previous embodiment, can

  be used to determine intermediate positions

diaries of the roller shutter.

  For this purpose, it suffices to count the signals on the output SL of the processing electronics 23. Each signal is assigned a number corresponding to a tooth or a slot and the microprocessor 29 also has a memory for storing the signal number. , memory

  which can be programmed manually or by program-

  according to the total number of signals emitted during

  movement of the roller shutter between its former positions

  as well as the input D Pl (request for position

  term) shown in Figure 8.

  The program shown in figure 16 is completed by

  the subroutines shown in Figures 19 and 20.

  The subroutine shown in FIG. 19 is an intermediate position request subroutine II

  includes an instruction 61 for testing the state of the

  entry D Pl (request for intermediate position), an ins-

  test truction 62 testing if the value of counted signals is greater than the value memorized in the storage memory of the number of the signal corresponding to an intermediate position, a test instruction 63 testing if the counted value is less than the value

  stored and an instruction 64 initializing a sub-

  counting program D Pl (request for intermediate position

  instructions 65 and 66 can be deleted

  even if we refrain from introducing a reaction time.

  If the DM input (figure 16) = 0, instruction 61 tests the DPI input If D Pl = 0, the program loops or the

  alarm subroutine is initialized if such a subroutine

program exists.

  If D Pl = 1 (request for intermediate position), the pro-

  gram continues with test instruction 62 which tests whether the number of signals counted is greater than

  stored number counted from the top position.

  If the counted value is not greater than the memorized value, the program continues with the instruction

  test 63 If 63 tests that the counted value is in-

  below the memorized value, which means that the wiper is above the desired intermediate position, the SD output then goes to 1 and the program continues with the DPI counting subroutine, such as

as shown in Figure 20.

  If instruction 63 tests that the counted value is sufficient

  less than or equal to the stored signal number, which means that the intermediate position is reached, the SM and SD outputs are set to zero and the motor 25 is not supplied. If instruction 62 tests that the counted value is greater than the stored signal number, this means

  that the wiper is below the intermediate position

  diaire The output SM is set to 1 and the instruction 64 ′ calls a counting subroutine D Pl similar to the subroutine represented in FIG. 20, but without the ascent subroutine 67 since there is (already) a

climb order.

  The DPI counting routine, as shown in

  Figure 20 is only initialized when going down Sa

  tion is to test if we still have a vibration then

  that there is an order of descent If the vibrations cease

  feels, it means that the shutter has encountered an obs-

  tackle The downhill subroutine includes an instruction

  tion 65 (optional) incrementing the counter

  reaction time 292, a test instruction 66 (fa-

  cultivation) testing whether the reaction time counted is greater than the reaction time memorized in memory 293, an ascent routine 67, an instruction

  68 increment / decrementation of the po counter

  sition 291 and an instruction 69 to reset the reaction time counter 292 This subroutine

  is identical to the counting subroutine of the fi-

  gure 17 with the difference that it also includes the sub-

  ascent program 67, not developed, which ensures a slight rise in the flap when it has encountered

  an obstacle, i.e. if SL = O while SD = 1.

  This embodiment provides automatic

  stop closing in a position if-

  killed between the extreme positions and she is particu-

  particularly advantageous, for example, for stopping a rolling shutter in the open position, that is to say in a low position in which the shutter blades do not

  are not stacked on top of each other.

Claims (16)

  1 device generating signals characteristic of the movement of a closing means, such as shutters, blinds or doors, characterized in that it comprises a   wiper (9) integral with the closure means, an element   fixed rigid ment (3; 16, 19; 21) capable of being vibrated by the wiper and extending over at least the length of the travel of the closure means so that the wiper rubs against   the rigid element during movement of the closing means   ture, and a vibration sensor (7) rigidly mounted on said rigid vibrating element and delivering a signal characteristic of these vibrations.   2 Device according to claim 1, characterized in that the surface of the fixed rigid element in contact with the wiper is serrated (21) or grooved so as to obtain vibrations whose intensity varies periodically.   3 Device according to claim 1 or 2, character-   in that the rigid vibrating element is constituted by   a slide or a guide rail of the closing means ture.   4 Device according to claim 1 or 2, character-   in that the rigid vibrating element (16; 19; 21) is fixed on a slide or guide rail of the means closing.   5 Motorized closure fitted with a general device   signal generator according to one of claims 1 to 4,   characterized in that it further comprises electronic means (23) for processing the signal emitted by the vibration sensor (7) and control means (24) of the motor or motors (25) driving the closing means based on orders received from the means of signal processing.   6 Closure according to claim 5, comprising a motor (25) with two windings for driving the closing means in the closing direction and   the opening, characterized in that the processing means   signal (23) include an amplifier / detector   signal modulator (26), a reference generator (27) delivering a reference value, a comparator   (28) to which the demodulated signal and the value are applied   their references, this comparator delivering a logic signal (0, 1) according to the relative position of the compared values, and that the control means comprise a microprocessor (29) comprising a main program (FIG. 11) of the climb inputs (DM) , descent (DD), stop (DS), ascent (SM) and descent (SD) outputs and an input (SL) connected to the comparator output, and whose main function is to   set the climb (SM) and des-   cent (SD) when the signal received from the comparator is equal to 0, and a power switching device (30)   connected to each of the motor windings by the outputs   up and down links and up and down exits   cent of the microprocessor and whose function is to   cut off the power on the mounted and des-   cente (M, D) of the switching device when the rise and fall outputs of the microprocessor are equal to 0.   7 Closure according to claim 6, characterized in that the microprocessor (29) further comprises a reaction time storage memory and a reaction time counter and that the main program is supplemented by a subroutine (Figures 12 and 13) making it possible to test that the change of the logic value on the output (SL) of the comparator (28) remains a determined time before issuing an order   engine stop and / or an alarm.   8 Closure according to claim 6, characterized in that the surface (22) of the rigid vibrating element in   contact with the wiper is notched or serrated in my-   niere to obtain a vibration whose amplitude varies with the passage of each niche or tooth, that the sensor (7)   is arranged to emit a signal whose amplitude will   laughs according to that of the vibration, that said   reference value is set so that the compa-   erator (28) delivers a logic signal (0, 1) only at each change in amplitude of the signal emitted by the sensor and the microprocessor (29) further includes a counter counting the change of state at the output of the comparator and a memory storing the number   change of state counted when the means of closing   ture traverses its entire length of movement, and means for comparing the number of changes of states counted during the movement of the closure means with the number stored in the memory, so as to make a distinction between arriving in the closed position and arrival at an obstacle (figure 16) and in this case possibly activating a partial ascent subroutine. 9 Closure according to claim 8, characterized in that the microprocessor (29) further comprises a reaction time counter (292), a memory (294) for storing a reaction time value and that the main program is supplemented by a subroutine (Figure 17) to test that the change in   the logic value on the comparator's output (SL)   die for a specified time before issuing an order to rêt.   Closure according to claim 8 or 9, characteristic   sée in that it includes an alarm (31) and that the microprocessor further comprises a memory intended to store a determined number of signals (SL) and an alarm signal counter and that the program (figure 16) is completed by an alarm subroutine (figure 18) ensuring that the alarm is only triggered when   the counted value is greater than the stored value.   11 Closure according to one of claims 8, 9 or   , characterized in that the control means (24) further include a memory for storing a signal number corresponding to the state of the counter when the closure is in the intermediate position and an intermediate position request (DPI) input and that the program further comprises an intermediate position request subroutine (FIG. 19) and a signal counting subroutine (FIG. 20), so as to allow the closure to be stopped in the intermediate position.   12 Closure according to claim 11, characterized in   what the po request counting routine   intermediate location (Figure 20) further includes a ascent routine (67).   13 Motorized closing control device with guided movement comprising position marks (22), detection means (21, 11, 7, 13) of these position marks, a counter (291) for counting the position marks encountered by closing during its movement, a memory (295) to which are   memorized determined positions and a lo-   processing logic (24) for sending orders to the motor (25) according to the counted position marks and the memorized positions, characterized in that the   detection means include a solider (11)   of the closing means, a fixed rigid element (3; 9, 19; 21) capable of being driven in vibration by the wiper and extending over at least the length of the stroke of the closing means so that   that the wiper rubs on the rigid element during the   placement of the closing means, a vibration sensor   tions (7) rigidly mounted on said rigid element vi-   brant and delivering a signal characteristic of these   brations and electronic processing (23) of the signal from the sensor.   14 Motorized closure according to one of claims   5, 6 or 7, the closure means of which consists of a rolling shutter, the blades of which can be stacked or spaced in the closed position, characterized in that it comprises a first wiper secured to the low blade (8) and a second wiper attached to a high blade penetrating the slide (3) and coming into contact with the vibrating element (3; 9; 19) just before the low blade (8) comes into abutment in the closed position, so as to stop the engine only after stacking all the blades in the slide.   Motorized closure according to one of the claims   , 6 or 7, the closing means of which is a rolling shutter, the blades of which are guided in two slides, characterized in that it comprises a vibrating element and a sensor in each of the slides, a first wiper secured to the low blade (8 ) rubbing on one of the vibrating elements so as to deliver a first signal (SLA), and a second rubbing member secured to an intermediate blade penetrating the slides and coming into contact with the other vibrating element at the time when the blade is low (8) arrives in an intermediate position and delivering a second signal (SLB), and in that the electronic control means comprise a decoding circuit (FIG. 14) with four outputs making it possible to   distinguish four states corresponding to the four combi-   the states of the sensor outputs.   16 Closure according to claim 15 comprising a   motor (25) with two windings for two directions of rotation   tion corresponding to the descent and ascent of the vo-   rolling let and a command capable of delivering an ascent order (SM = 1) or a descent order (SD = 1), characterized in that the electronic control means also comprise means for memorizing   the previous state of the outputs of the decoding circuit, so as to make it possible to distinguish, on a descent, between a stop due to an obstacle and a stop in a fully closed position, blades stacked.   17 Motorized closure according to claim 5,   taking a motor (25) with two windings for the   dragging of the closing means in the direction of the   opening and closing, characterized in that the sensor signal processing means (7) comprises   nent a circuit (71, 72) delivering a reference voltage, an amplifier circuit (74, 75), a comparator (76) comparing the amplified signal to the reference voltage and whose output which can take a state "high" or an "Ibas" state, is applied to a resettable monostable (77) whose output Q * goes to the "low" state for a fixed duration (T) greater than the maximum time separating two pulses during the movement of the wiper on the vibrating element and returns to the "high" state only   if the vibrations disappear for a longer period of time less than said fixed duration (T).   18 Closure according to claim 17, characterized in that the processing means further comprise two flip-flops (78, 79) to which the output Q * of the resettable monostable (77) is applied, one of the flip-flops (78) being connected to one circuit (80, 82, 84) detecting an upward movement (SM) and the other rocker (79) being connected to a circuit (81, 83, 84) detecting a downward movement, for recording a fault in the rockers , by a determined state, that is to say if the   vibration stops while the engine is activated when   entry or exit, said circuits being furthermore   so as to maintain the recording of the fault as long as a movement order in the direction opposite was not given.   19 Closure according to claim 18, characterized in that said circuits (80, 82, 84 and 81, 83, 84)   each comprise a transistor (80, 81) whose collars   readers are respectively connected to the Data input of each of the flip-flops (78, 79) and whose transmitters are respectively connected to two terminals (DD, DM) of a control switch (84) for controlling the rise and the lowering of the shutter, one or the other of the transistors being conductive in the event of a movement command, a fault recorded in one of the flip-flops having the effect of blocking the conduction of the corresponding transistor35, this blocked state is maintained as well   as long as the other transistor has not been turned on   conductor by the change of state of the switch,   ie the appearance of an order of movement of opposite direction posed.