TWI788914B - Pneumatic elevator system and its control method - Google Patents

Abstract

A pneumatic elevator system, comprising a well, a pneumatic car, a driving device, a plurality of magnetic parts, a magnetic sensing part, a control device, the pneumatic car is located in the well, and the magnetic parts correspond to the floors of the building , the magnetic sensor is arranged in the pneumatic carriage. The control method includes the following steps: the control device receives an activation signal, and controls the driving device to move the pneumatic carriage; during the movement of the pneumatic carriage, the magnetic sensing part outputs a pulse signal when it corresponds to any magnetic part; the control device outputs a pulse signal according to the received signal. The sequence of the pulse signal determines the position of the magnetic sensor during the movement of the pneumatic carriage, and correspondingly controls the driving device, so that the pneumatic carriage moves to the target floor. In this way, the wiring on each floor is effectively reduced.

Description

Pneumatic elevator system and control method thereof

The present invention is related to elevators; in particular, it refers to a pneumatic elevator system and its control method.

FIG. 1 shows a conventional pneumatic elevator system 100 , including a shaft 10 , a pneumatic car 12 , a driving device 14 , a plurality of sensors 16 and a control device 18 . This hoistway 10 runs through each floor F of the building. The pneumatic carriage 12 is movably located in the hoistway 10, and the pneumatic carriage 12 is provided with a sensed part 122 and an operation panel 124, and the operation panel 124 is operated by a user to generate an activation signal. The driving device 14 pumps air or releases pressure in the space of the hoistway 10 above the pneumatic carriage 12, so that the pneumatic carriage 12 moves upward or downward. The sensors 16 are respectively arranged at the shaft 10 corresponding to each floor F, and the sensors 16 are used to sense the sensed parts of the pneumatic carriage 12 to determine the position of the pneumatic carriage 12 . The control device 18 is electrically connected to the drive device 14, the sensors 16 and the operation panel 124, and controls the drive device 14 to pump air or release pressure according to the activation signal of the operation panel 124 and the output signals of the sensors 16. , so that the pneumatic car 12 moves up or down to a target floor.

Since the sensors 16 on each floor F are connected to the control device 18 by wires 162, the more the number of floors, the more the number of sensors 16, and the relative increase in the number of wires 162, which will increase the difficulty of wiring. The large number of wires 162 also increases the cost.

Therefore, the design of the conventional pneumatic elevator system 100 is still incomplete and needs to be improved.

In view of this, the object of the present invention is to provide a pneumatic elevator system and its control method, which can simplify wiring and reduce the use of electric wires.

In order to achieve the above object, a pneumatic elevator system provided by the present invention is installed in a building, and the building includes a plurality of floors, and the floors include a lower floor and at least one upper floor; the pneumatic elevator system includes a shaft, A pneumatic carriage, a driving device, a plurality of magnetic parts, a magnetic sensing part, and a control device, wherein:

The well communicates the lower floor with the at least one upper floor; the pneumatic carriage is movably located in the well; the driving device is arranged in the well, and the driving device is controlled to pump or discharge air from the space of the well above the pneumatic carriage. Press to make the pneumatic carriage move up or down; the magnetic parts include a lower magnetic part and at least one upper magnetic part, wherein the lower magnetic part is arranged in the hoistway and corresponds to the lower layer; the at least one upper magnetic part is arranged in The hoistway corresponds to the at least one upper floor; the magnetic sensing part is arranged on the pneumatic carriage and moves with the pneumatic carriage, and the magnetic sensing part outputs a pulse wave signal when it moves to correspond to any of the magnetic parts; the control device Electrically connected to the magnetic sensor, the control device controls the driving device to move the pneumatic carriage after receiving an activation signal, and judges the magnetic sensor during the movement of the pneumatic carriage according to the sequence of the received pulse signals. The location of the parts and corresponding control of the drive means, so that the pneumatic car moves to one of the floors.

A control method for a pneumatic elevator system provided by the present invention comprises the following steps:

A. The control device receives an activation signal, and controls the driving device to move the pneumatic carriage according to the activation signal;

B. During the movement of the pneumatic carriage, the magnetic sensing part outputs the pulse signal when it corresponds to any of the magnetic parts;

C. The control device receives the pulse wave signal output by the magnetic sensing element, judges the position of the magnetic sensing element during the movement of the pneumatic carriage according to the sequence of the received pulse wave signal, and performs corresponding control on the drive device control to move the pneumatic car to one of the floors.

The effect of the present invention is that the magnetic parts are arranged on each floor, and the magnetic sensing parts on the pneumatic carriage are electrically connected to the control device, and the control device judges the position of the magnetic sensing part during the movement of the pneumatic carriage according to the sequence of the pulse wave signals. position to control the drive. Compared with the conventional pneumatic elevator system, the present invention can effectively reduce the wiring of each floor, reduce the use of electric wires, and effectively reduce the cost.

In order to illustrate the present invention more clearly, preferred embodiments are given and detailed descriptions are given below in conjunction with drawings. Please refer to FIG. 2 and FIG. 3 , which is a pneumatic elevator system 1 according to a first preferred embodiment of the present invention, which is installed in a building, and the building includes a plurality of floors. The floors include a lower floor F1 and an upper floor F2, the lower floor F1 is an example of the first floor, and the upper floor F2 is an example of a second floor. The pneumatic elevator system 1 includes a shaft 20 , a pneumatic car 22 , a driving device 26 , a plurality of magnetic components, a magnetic sensing component 32 and a control device 34 .

The shaft 20 communicates with the lower floor F1 and the upper floor F2. The hoistway 20 has a plurality of positioning elements such as positioning grooves 202, and the positioning grooves 202 are located on the upper layer F2. In addition, the hoistway 20 is provided with a door locking device 36 next to the doors of each floor. The door locking device 36 has a door lock 362 and an unlocking indication switch 364, and the door locking device 36 is connected with an unlocking member 38. When the unlocking member 38 is When touched, the door lock 362 linked with the door locking device 36 will be unlocked and the unlock indication switch 364 will be triggered. The unlocking member 38 on the lower floor F1 is disposed at the bottom of the shaft 20 , and the unlocking member 38 on the upper floor F2 is located in the positioning groove 202 .

The pneumatic carriage 22 is movably located in the hoistway 20, and an operation panel 24 is arranged in the pneumatic carriage 22. The operation panel 24 has a plurality of floor buttons (not shown) for the user to select. When the floor button is pressed, the operation panel 24 outputs an activation signal including the target floor. In this embodiment, the top of the pneumatic carriage 22 is provided with a leveling stop device, the leveling stop device 40 includes a plurality of blocks 402, and the leveling stop device 40 can be controlled to protrude laterally. These stoppers 402 (refer to FIG. 3 ), when these stoppers 402 extend into these positioning grooves 202, the stoppers 402 can be against the positioning grooves 202, and can touch the unlocking member 38 in the positioning grooves 202, so as to be located in the positioning grooves 202 The door lock 362 of the door locking device 36 on the upper floor F2 is unlocked and the unlock indication switch 364 is turned on (on). When the pneumatic carriage 22 moves up, the block 402 leaves the unlocking member 38, and the door lock 362 of the door locking device 36 is stretched out to lock the door D of the upper floor F2, and at the same time, the unlock indication switch 364 is turned off (off); And the inclined surfaces of each of the stoppers 402 are retracted by being pressed by each of the positioning grooves 202, until they are controlled to protrude laterally again.

When the pneumatic carriage 22 moves to the lower floor F1 and the bottom of the pneumatic carriage 22 touches the unlocking member 38 at the bottom of the hoistway 20 (see FIG. 2 ), the door lock 362 of the door locking device 36 located in the lower floor F1 is unlocked and locked. The touch unlock indication switch 364 is turned on (on). When the pneumatic carriage 22 moved up, the bottom of the pneumatic carriage 22 left the unlocking member 38, and the door lock 362 of the door locking device 36 stretched out to lock the door D of the lower floor F1. At the same time, the unlock indication switch 364 was closed (off ).

The driving device 26 is disposed on the hoistway 20 and above the pneumatic carriage 22 . The driving device 26 is controlled to pump air or depressurize the space of the hoistway 20 above the pneumatic carriage 22 . In this embodiment, the driving device 26 includes an air extraction device 28 and a pressure relief device 30, the air extraction device 28 is used to extract air from the space of the hoistway 20 above the pneumatic carriage 22, so that the pressure is reduced to allow the The pneumatic carriage 22 moves upwards.

In this embodiment, the air extraction device 28 includes a first air extraction module 282 and a second air extraction module 284, the first air extraction module 282 and the second air extraction module 284 are controlled respectively The space of the hoistway 20 above the pneumatic carriage 22 is pumped, wherein, when the first pumping module 282 is activated, the driving device 26 has a first pumping rate; when the first pumping module 282 When both the second air extraction module 284 are activated, the driving device 26 has a second air extraction rate, which is higher than the first air extraction rate, so as to increase the moving speed of the pneumatic carriage 22 . In one embodiment, the air extraction device 28 can also have an air extraction module, which can be controlled to have two different air extraction rates, or only a single air extraction rate.

The pressure relief device 30 may include a pressure relief valve, and the pressure relief device 30 is used to release the pressure in the space of the hoistway 20 above the pneumatic carriage 22 so as to recover the pressure and allow the pneumatic carriage 22 to move downward due to gravity. Thereby, the purpose of allowing the pneumatic carriage 22 to move up or down is achieved.

The magnetic elements include a lower magnetic element and at least one upper magnetic element, wherein the lower magnetic element is disposed in the shaft 20 and corresponds to the lower layer F1. The at least one upper magnetic part is arranged in the shaft 20 and corresponds to the upper layer F2. In this embodiment, the number of the at least one upper magnetic part is two and includes a first upper magnetic part M2 and a second upper magnetic part MU2 , the position of the second upper magnetic element MU2 is higher than the position of the first upper magnetic element M2. Each of the magnetic parts has a magnet to generate magnetic force.

The magnetic sensing part 32 is arranged on the pneumatic carriage 22 and moves with the pneumatic carriage 22. When the magnetic sensing part 32 moves to correspond to any of the magnetic parts, it senses the magnetic force of any magnetic part and outputs a corresponding pulse. wave signal. The magnetic sensing element 32 can be, for example, a reed switch, a Hall sensor, or other sensing elements that can sense changes in magnetic force.

The control device 34 is electrically connected to the magnetic sensor 32, the operation panel 24, the unlocking indicator switches 364, and the leveling stop device 40, and the control device 34 controls the driving device 26 so that the pneumatic carriage 22 moves to One of these floors, and control the leveling stop device 40 to stretch out the block, and receive the activation signal of the operation panel 24, the conducting or closing signal of each of the unlocking indicator switches 364. In addition, an operation panel (not shown) for calling a car can also be provided on each floor. The operation panel is electrically connected to the control device 34 for the user to press the up button or down button to output an activation signal to In the control device, the activation signal may also include a target floor, which is the floor where the operation panel is located.

With the above structure, the control method of this embodiment can be implemented. The control method comprises the following steps:

The control device 34 receives the activation signal, and controls the driving device 26 to move the pneumatic carriage 22 according to the activation signal.

In this embodiment, the control device 34 records a current floor where the pneumatic car 22 is located. As shown in FIG. 2 , the control device 34 records the current floor as the lower floor. For example, the control device 34 can know the current floor by judging the conduction signal of the unlock indication switch 364 of the corresponding floor. The activation signal is taken from the operation panel in the pneumatic car 22 as an example, for example, the user presses the button of the target floor (the button of the upper floor F2 is taken as an example). In one embodiment, the activation signal can also come from the operation panel for calling a car on each floor.

Please cooperate with the signal sequence diagram shown in Figure 4 to describe the control steps for controlling the pneumatic carriage 22 to move from the lower floor F1 to the upper floor F2, wherein the signals T1, T2, EVO, and CLO are the control signals output by the control device 34, The signal T1 is used to control the first air extraction module 282, the signal T2 is used to control the second air extraction module 284, the signal EVO is used to control the pressure relief device 30, and the signal CLO is used to control the leveling stop device 40. Signals DU1, DU2, S are the input signals to the control device 34, the signal DU1 is the signal of the unlock indicator switch 364 of the lower layer F1, the signal DU2 is the signal of the unlock indicator switch 364 of the upper layer F2, and the signal S is the signal of the magnetic switch 364. The signal of the sensor 32.

When the control device 34 judges that the current floor is the lower floor F1 (signal DU1 is high level) and the target floor is the upper floor F2, the control device 34 controls the driving device 26 to pump air (signal T1 is high level), so that The pneumatic carriage 22 moves upwards. In this embodiment, the first air pumping module 282 is firstly controlled to pump air, so that the driving device 26 first pumps air at the first pumping rate. When the control device 34 judges that the signal DU1 is at a low level, it means that the pneumatic carriage 22 has moved up. At this time, the control device 34 makes the signal T2 a high level again, so that the second air pumping module 284 and the second air extraction module 284 An air pumping module 282 pumps air at the same time, so that the driving device 26 pumps air at the second pumping rate, and the moving speed of the pneumatic carriage 22 increases.

During the moving process of the pneumatic carriage 22, the magnetic sensing element 32 outputs a pulse wave signal when corresponding to any one of the magnetic elements. Each pulse signal in the signal S in FIG. 4 represents that the magnetic sensing element senses the corresponding magnetic element.

The control device 34 receives the pulse wave signal output by the magnetic sensing element 32, judges the position of the magnetic sensing element 32 during the movement of the pneumatic carriage 22 according to the sequence of the received pulse wave signal, and 26 carries out corresponding control, makes this pneumatic car 22 move to one of these floors.

In this embodiment, when the control device 34 receives the first pulse signal in the signal S, it means that the magnetic sensing part 32 has sensed the lower magnetic part, and the control device 34 judges that the pneumatic carriage 22 is currently passing the Lower layer magnetics. When the control device receives at least one of the pulse signals in the signal S, it judges that the magnetic sensing part has passed at least one upper magnetic part. At this time, it means that the pneumatic carriage 22 has moved up to the upper layer F2, and then controls the drive. The device 26 slows down the pumping and stops the pumping.

In this embodiment, the control device 34 receives the second pulse signal in the signal S to indicate that the first upper magnetic member M2 is sensed, and judges that the magnetic sensing member 32 passes the first upper magnetic member M2, and When the signal S turns to a high level, the control device turns the signal T2 to a low level to stop the second air pumping module 284, thereby controlling the driving device 26 to pump air at the first pumping rate, that is, Slowing down the pumping reduces the speed at which the pneumatic carriage 22 moves.

The control device 34 receives the third pulse signal in the signal S to indicate that the second upper magnetic member MU2 is sensed, and the control device 34 turns the signal CLO to a high level control when the signal S turns to a high level The leveling stop device 40 protrudes laterally from the blocks 402 and turns the signal T1 to a low level to control the driving device 26 to stop pumping. Since the pneumatic carriage 22 still has a section of upward inertia after it stops pumping air, it will move down, that is, the magnetic sensing element 32 will move down and pass through the second upper magnetic element MU2 when it goes up and exceeds the second upper magnetic element MU2. Second, the upper magnetic unit MU2, therefore, after the third pulse wave of the signal S ends, a fourth pulse wave will be generated. When the pneumatic carriage 22 moves down, the blocks 402 enter into the positioning grooves 202 and abut against the positioning grooves 202 to fix the pneumatic carriage 22 in the hoistway 20 . And the stopper 402 touches the unlocking piece 38 in the positioning groove 202 to unlock the door lock 362 of the door locking device 36 located on the upper floor F2 and trigger the unlocking indicator switch 364 to turn on, so that the signal DU2 turns to a high level, and the user immediately Can open the door D of this upper floor F2, state as shown in Figure 3. The control device 34 can determine and record that the current floor is the upper floor F2 by the high level of the signal DU2. When the signal DU2 turns to a high level, the control device 34 turns the signal CLO to a low level, which does not affect the extended position of the stopper 402 .

Continue with FIG. 5 to illustrate the steps of controlling the pneumatic cabin 22 to move to the lower floor F1.

The control device 34 receives the start signal, and when the current floor is the upper floor F2 and the target floor is the lower floor F1, the control device 34 controls the first air extraction module 282 of the driving device 26 to pump air (signal T1 turns high Level), so that the pneumatic carriage 22 moves upward; when the pneumatic carriage 22 moves upward, the stopper 402 leaves the unlocking member, and the door lock 362 of the locking device 36 of the upper floor F2 is extended to lock the upper floor F2 For door D, at the same time, the unlock indication switch 364 is turned off (the signal DU2 turns to a low level), and the slopes of the blocks 402 are pressed by the positioning grooves 202 to retract.

When the control device 34 receives the first pulse signal in the signal S, it judges that the magnetic sensor 32 passes the second upper magnetic part MU2, and the control device 34 turns the signal T1 to a low level to control the The driving device 26 stops pumping air, and turns the signal EVO to a high level to control the pressure relief device 30 of the driving device 26 to release pressure. Since the pneumatic carriage 22 still has a section of upward inertia after it stops pumping air, it will move down, that is, the magnetic sensing element 32 will move down and pass through the second upper magnetic element MU2 when it goes up and exceeds the second upper magnetic element MU2. Two upper magnetic parts MU2, therefore, after the first pulse wave of the signal S ends, there will be a second pulse wave to generate, at this moment, the control device 34 judges that the pneumatic carriage 22 has indeed moved down.

When the control device 34 receives the third pulse signal in the signals S, it is judged that the magnetic sensing element 32 moves down to the first upper magnetic element M2. When the control device 34 receives the fourth pulse signal in the signal S, it judges that the magnetic sensing element 32 passes the lower magnetic element, and turns the signal EVO to a low level when the signal S turns to a high level The driving device 26 is controlled to stop the pressure release. Since the pressure is no longer depressurized, the downward movement speed of the pneumatic car 22 is reduced. When the pneumatic carriage 22 moves to the lower floor F1 and the bottom of the pneumatic carriage 22 touches the unlocking member 38 at the bottom of the hoistway 20 (see FIG. 2 ), the door lock 362 of the door locking device 36 located in the lower floor F1 is unlocked and locked. The touch unlock indication switch 364 is turned on (the signal DU1 turns to a high level). The control device 34 can determine and record that the current floor is the lower floor F1 by the high level of the signal DU1.

Fig. 6 to Fig. 8 are the pneumatic elevator system 2 of the second preferred embodiment of the present invention, and it has the structure roughly the same as that of the first embodiment, the difference is, the upper floor of the building among the present embodiment is plural floors, It includes at least a first upper layer F2a and a second upper layer F2b, and the second upper layer F2b is higher than the first upper layer F2a. In other words, the first upper floor F2a is an intermediate floor located between the second upper floor F2b and the lower floor F1.

The shaft 20 is provided with a first upper magnetic member M2, M3 and a second upper magnetic member MU2a, MU3 corresponding to the first upper layer F2a and the second upper layer F2b. The magnetic parts further include at least one third upper magnetic part MU2b, the third upper magnetic part MU2b is arranged in the shaft 20 corresponding to the first upper layer F2a and higher than the second upper magnetic part in the first upper layer F2a MU2a. The hoistway 20 has the positioning grooves 202 corresponding to the first upper layer F2a and the second upper layer F2b.

The other components of the pneumatic elevator system 2 disposed on the first upper floor F2a and the second upper floor F2b are the same as those in the first embodiment, and will not be repeated here.

The third upper magnetic part MU2b is used as a basis for the control device 34 to control the driving device 26 when the pneumatic carriage 22 descends from above the first upper layer F2a to the first upper layer F2a. In more detail, please refer to FIG. 9 to describe the steps of controlling the pneumatic carriage 22 to move down from the second upper floor F2b to the first upper floor F2a. In FIG. 9, the signal DU2 is the signal of the unlock indication switch 364 of the first upper layer F2a, and the signal DU3 is the signal of the unlock indication switch 364 of the second upper layer F2b.

As shown in Figure 8, the stopper 402 touches the unlocking member in the positioning groove 202 of the second upper layer F2b, so as to unlock the door lock 362 of the door locking device 36 located on the second upper layer F2b and trigger the unlocking indicator switch 364 to conduct, Make the signal DU3 turn to a high level, and the user can open the door of the second upper floor F2b. Based on this, the control device 34 can determine that the current floor is the second upper floor F2b. The control device 34 receives the starting signal. When the current floor is the second upper floor F2b and the target floor is the first upper floor F2a, the control device 34 controls the first air extraction module 282 of the drive device 26 to pump air (signal T1 turns to the high level), the pneumatic carriage 22 is moved upwards. When the pneumatic carriage 22 moved up, the block 402 left the unlocking member, and the door lock 362 of the door locking device 36 of the second upper floor F2b was extended to lock the door of the second upper floor F2b. At the same time, the unlocking indicator switch 364 close (signal DU3 turns to low level), and the slopes of the stoppers 402 are retracted by the pressure of the positioning slots 202 .

During the moving process of the pneumatic carriage 22, the magnetic sensing element 32 outputs a pulse wave signal when corresponding to any one of the magnetic elements.

When the control device 34 receives the first pulse signal in the signal S, it judges that the magnetic sensor 32 passes through the second upper magnetic member MU3 corresponding to the second upper layer F2b, and the control device 34 sends the signal T1 Switching to a low level controls the driving device 26 to stop pumping, and switching the signal EVO to a high level controls the pressure relief device of the driving device 26 to release pressure. Since the pneumatic carriage 22 still has a section of upward inertia after it stops pumping air, it will move down, that is, the magnetic sensor 32 will move down and pass through the second upper magnetic part MU3 after it goes up and surpasses the second upper magnetic part MU3. Two upper magnetic parts MU3, therefore, after the first pulse wave of the signal S ends, there will be a second pulse wave to generate, at this moment, the control device 34 judges that the pneumatic carriage 22 has indeed moved down.

When the control device 34 receives the third pulse signal in the signals S, it is judged that the magnetic sensing element 32 moves down to the first upper magnetic element M3 corresponding to the second upper layer F2b. When the control device receives the fourth pulse signal in the signal S, it judges that the magnetic sensing element 32 passes the third upper magnetic element MU2b corresponding to the first upper layer F2a, and the signal S turns to a high level At this time, the signal EVO is turned to a low level to control the driving device 26 to stop the pressure release and the signal CLO is turned to a high level to control the leveling stop device 40 to extend the blocks 402 laterally. Since the pressure is no longer depressurized, the downward movement speed of the pneumatic car 22 is reduced. The pneumatic carriage 22 moves down and the stoppers 402 abut against the positioning grooves 202 corresponding to the first upper floor F2a, so that the pneumatic carriage 22 is fixed in the hoistway 20 . The stopper 402 touches the unlocking piece 38 in the positioning groove 202 to unlock the door lock 362 of the door locking device 36 located on the first upper floor F2a and triggers the unlock indication switch 364 to turn on, so that the signal DU2 turns to a high level, and the user The door D of the first upper floor F2a can be opened, as shown in FIG. 7 . The control device 34 can determine and record that the current floor is the first upper floor F2a by the high level of the signal DU2. When the signal DU2 turns to a high level, the control device turns the signal CLO to a low level, which does not affect the extended position of the stopper 402 .

Fig. 10 is a signal timing diagram for controlling the movement of the pneumatic carriage 22 from the lower floor F1 to the first upper floor F2a, the control steps are roughly the same as those of the pneumatic carriage 22 in the first embodiment shown in Fig. 4 moving from the lower floor F1 to the upper floor F2 The same, the difference is that the pneumatic car 22 stops at the first upper floor F2a at last.

FIG. 11 is a timing diagram of signals for controlling the movement of the pneumatic carriage 22 from the first upper floor F2a to the second upper floor F2b. The control steps are roughly the same as those of the pneumatic carriage 22 in FIG. 10 moving from the lower floor F1 to the first upper floor F2a. Similarly, the control device 34 also judges the position of the magnetic sensor 32 during the movement of the pneumatic carriage 22 according to the sequence of the received pulse signals. The difference is that the first pulse signal of the signal S corresponds to the second upper magnetic member MU2a of the first upper layer F2a, and the second pulse signal of the signal S corresponds to the third upper magnetic member MU2a of the first upper layer F2a. MU2b, the third pulse signal of signal S corresponds to the first upper magnetic component M3 of the second upper layer F2b, and the fourth and fifth pulse signals correspond to the second upper layer of the second upper layer F2b Magnetic piece MU3. The pneumatic carriage 22 finally stops at the second upper floor F2b, and the signal DU3 is at a high level.

Fig. 12 is a signal sequence diagram for controlling the movement of the pneumatic carriage 22 from the lower floor F1 to the second upper floor F2b, and the control steps are roughly the same as those of the pneumatic carriage 22 in Fig. 11 moving from the first upper floor F2a to the second upper floor F2b The same, the difference is that the first pulse signal of the signal S corresponds to the lower magnetic part M1 of the lower layer F1, and the second pulse signal of the signal S corresponds to the first upper magnetic part M2 of the first upper layer F2a , the third pulse signal of the signal S is corresponding to the second upper magnetic member MU2a of the first upper layer F2a, and the fourth pulse signal of the signal S is corresponding to the third upper magnetic member MU2b of the first upper layer F2a , the fifth pulse signal of the signal S corresponds to the first upper magnetic part M3 of the second upper layer F2b, and the sixth and seventh pulse signals correspond to the second upper magnetic part of the second upper layer F2b MU3. The pneumatic car finally stops at the second upper floor F2b, and the signal DU3 is high.

FIG. 13 is a timing diagram of signals for controlling the movement of the pneumatic carriage 22 from the first upper floor F2a to the lower floor F1. The control steps are roughly the same as those of the pneumatic carriage 22 of the first embodiment shown in FIG. 5 moving from the upper floor F2 to the lower floor F1. Same, the difference is that the current floor is the first upper floor F2a, the signal DU2 is high level, the first and second pulse signals of the signal S are the second upper magnetic member MU2a corresponding to the first upper floor F2a, the signal The third pulse signal of S is corresponding to the first upper magnetic part M2 of the first upper layer F2a, and the fourth pulse signal of signal S is corresponding to the lower magnetic part M1 of the lower layer F1.

Fig. 14 is a signal timing diagram for controlling the pneumatic carriage 22 to move from the second upper floor F2b to the lower floor F1, the steps of its control are roughly the same as the steps of moving the pneumatic carriage from the first upper floor F2a to the lower floor F1 in Fig. 13, the difference is In that, the current floor is the second upper floor F2b, the signal DU3 is at a high level, the first and second pulse signals of the signal S are corresponding to the second upper magnetic member MU3 of the second upper floor F2b, and the first pulse wave signal of the signal S is The three pulse signals are corresponding to the first upper magnetic part M3 of the second upper layer F2b, and the fourth pulse signal of the signal S is corresponding to the third upper magnetic part MU2b of the first upper layer F2a. The five pulse signals are corresponding to the second upper magnetic part MU2a of the first upper layer F2a, and the sixth pulse signal of the signal S is corresponding to the first upper magnetic part M2 of the first upper layer F2a. The seven pulse signals correspond to the lower magnetic member M1 of the lower layer F1.

In practice, there may also be a plurality of first upper layers F2a located between the second upper layer F2b and the lower layer F1. The hoistway is provided with a first upper layer magnetic piece M2, a second upper layer magnetic piece MU2a, and a third upper layer magnetic piece MU2b corresponding to each first upper layer F2a. The control steps for controlling the movement of the pneumatic carriage 22 across the plurality of first upper floors F2a are substantially the same as the above, the only difference is that the number of pulse signals that the signal S passes through is different. The control device 34 can also determine the position of the magnetic sensing element 32 during the movement of the pneumatic carriage 22 according to the sequence of the pulse wave signals output by the magnetic sensing element 32 .

According to the above, the pneumatic elevator system and its control method of the present invention, by arranging magnetic components on each floor, use the magnetic sensing components on the pneumatic car to electrically connect to the control device, and the control device judges according to the sequence of the pulse wave signal The position of the magnetic sensing part during the movement of the pneumatic carriage is used to control the driving device. Compared with the conventional pneumatic elevator system, the present invention can effectively reduce the wiring of each floor, reduce the use of electric wires, and effectively reduce the cost.

The above description is only a preferred feasible embodiment of the present invention, and all equivalent changes made by applying the description of the present invention and the scope of the patent application should be included in the scope of the patent of the present invention.

[used] 100:Pneumatic elevator system 10: shaft 12: Pneumatic compartment 122: Induced piece 124: Operation panel 14: Drive device 16: Sensor 162: wire 18: Control device F: floor [this invention] 1,2: Pneumatic elevator system 20: shaft 202: positioning slot 22: Pneumatic carriage 24: Operation panel 26: Drive device 28: Air extraction device 282: The first air extraction module 284:Second air extraction module 30: Pressure relief device 32: Magnetic sensor 34: Control device 36: Door locking device 362: door lock 364: Unlock indication switch 38: Unlocking piece 40: Leveling stop device 402: block D: door F1: lower layer F2: upper layer F2a: First Upper Floor F2b: second upper floor M1: Lower layer magnetic parts M2: The first upper magnetic part MU2: The second upper magnetic piece MU2a: second upper magnetic piece MU2b: The third upper magnetic piece M3: The first upper magnetic part MU3: The second upper magnetic piece T1, T2, EVO, CLO, DU1, DU2, DU3, S: signal

FIG. 1 is a schematic diagram of a conventional pneumatic elevator system. Fig. 2 is a schematic diagram of the pneumatic elevator system according to the first preferred embodiment of the present invention. Fig. 3 is a schematic diagram of the pneumatic elevator system according to the first preferred embodiment of the present invention. Fig. 4 is a timing diagram of signals for the pneumatic carriage moving from the lower floor F1 to the upper floor F2. Fig. 5 is a timing diagram of signals for the pneumatic carriage moving from the upper floor F2 to the lower floor F1. Fig. 6 is a schematic diagram of a pneumatic elevator system according to a second preferred embodiment of the present invention. Fig. 7 is a schematic diagram of a pneumatic elevator system according to a second preferred embodiment of the present invention. Fig. 8 is a schematic diagram of a pneumatic elevator system according to a second preferred embodiment of the present invention. FIG. 9 is a timing diagram of signals for the pneumatic car moving from the second upper floor F2b to the first upper floor F2a. FIG. 10 is a timing diagram of signals for the pneumatic carriage moving from the lower floor F1 to the first upper floor F2a. FIG. 11 is a timing diagram of signals for the pneumatic car moving from the first upper floor F2a to the second upper floor F2b. FIG. 12 is a timing diagram of signals for the pneumatic carriage moving from the lower floor F1 to the second upper floor F2b. Fig. 13 is a timing diagram of signals for the pneumatic carriage moving from the first upper floor F2a to the lower floor F1. FIG. 14 is a timing diagram of signals for the pneumatic carriage moving from the second upper floor F2b to the lower floor F1.

1: Pneumatic elevator system

20: shaft

202: positioning slot

22: Pneumatic carriage

24: Operation panel

26: Drive device

28: Air extraction device

282: The first air extraction module

284:Second air extraction module

30: Pressure relief device

32: Magnetic sensor

34: Control device

36: Door locking device

362: door lock

364: Unlock indication switch

38: Unlocking piece

40: Leveling stop device

D: door

F1: lower layer

F2: upper layer

M1: Lower layer magnetic parts

M2: The first upper magnetic part

MU2: The second upper magnetic piece

Claims (8)

A pneumatic elevator system, installed in a building, the building includes a plurality of floors, the floors include a lower floor and at least one upper floor; the pneumatic elevator system includes: a shaft connecting the lower floor and the at least one upper floor; A pneumatic car is movably located in the well; a driving device is arranged in the well, and the driving device is controlled to pump air or release pressure in the space of the well above the pneumatic car, so that the pneumatic car goes upward or toward Moving down; a plurality of magnetic parts, including a lower magnetic part and at least one upper magnetic part, wherein the lower magnetic part is arranged in the shaft and corresponds to the lower layer; the at least one upper magnetic part is arranged in the shaft and corresponds to the at least one upper layer ; A magnetic sensing part is arranged on the pneumatic carriage and moves with the pneumatic carriage, and the magnetic sensing part outputs a pulse wave signal when it moves to correspond to any of the magnetic parts; a control device is electrically connected to the magnetic induction After receiving a starting signal, the control device controls the driving device to move the pneumatic carriage, and judges the position of the magnetic sensing part during the movement of the pneumatic carriage according to the sequence of the received pulse signals and Carry out corresponding control to this driving device, make this pneumatic car move to one of these floors; Wherein, this control device records the current floor that this pneumatic car is in; The starting signal includes a target floor, the current floor When it is the lower floor and the target floor is the at least one upper floor, the control device controls the driving device to pump air to move the pneumatic carriage upward, and when the control device receives the first pulse signal, it records the magnetic sensing The component passes through the lower magnetic component, and when the control device receives at least one of the pulse signals, it records that the magnetic sensing component passes the at least one upper magnetic component, and then controls the driving device to slow down the pumping and stop the pumping; Wherein, the at least one upper-layer magnetic part is plural and includes a first upper-layer magnetic part and a second upper-layer magnetic part, wherein the position of the second upper-layer magnetic part is higher than the position of the first upper-layer magnetic part; the control device When receiving the pulse signal corresponding to the first upper magnetic part, record that the magnetic sensing part passes through the first upper magnetic part and control the driving device to slow down the pumping; the control device receives the pulse signal corresponding to the second upper magnetic part When the pulse wave signal is received, the driving device is controlled to stop pumping; wherein, the hoistway has a plurality of positioning parts, and these positioning parts are located at least one upper layer; a leveling stop device is arranged on the pneumatic carriage and is electrically connected to the A control device, the leveling stop device includes a plurality of stops, and the leveling stop device can be controlled to protrude these blocks laterally; the control device receives the pulse corresponding to the second upper magnetic piece When the wave signal is activated, the leveling stop device is controlled to extend the blocks laterally, and when the pneumatic carriage moves down, the blocks abut against the positioning pieces to fix the pneumatic carriage on the In the well. As for the pneumatic elevator system described in claim 1, when the control device controls the driving device to pump air, the driving device first pumps air at a first pumping rate, and then pumps air at a second pumping rate, the first pumping rate The second pumping rate is higher than the first pumping rate; when the control device receives the pulse signal corresponding to the first upper magnetic part, it controls the driving device to pump gas at the first pumping rate. The pneumatic elevator system according to claim 1, wherein when the current floor is the at least one upper floor and the target floor is the lower floor, the control device controls the driving device to pump air to move the pneumatic car upwards, and the The stoppers are retracted; when the control device receives the first pulse signal, it records that the magnetic sensing part passes the second upper magnetic part, and the control device controls the drive device to stop pumping and release the pressure. The pneumatic carriage moves downward; when the control device receives the pulse signal corresponding to the lower magnetic part, it records that the magnetic sensing part passes the lower magnetic part, and then controls the driving device to stop the pressure release. The pneumatic elevator system as described in claim 1, wherein the at least one upper floor is a plurality of floors, including a first upper floor and a second upper floor, and the second upper floor is higher than the first upper floor; the shaft is corresponding to the first Both the upper layer and the second upper layer are provided with a first upper layer magnetic piece and a second upper layer magnetic piece; these magnetic pieces further include a third upper layer magnetic piece, and the third upper layer magnetic piece is arranged on the shaft at Corresponding to the first upper floor and higher than the second upper magnetic piece located on the first upper floor; the positioning pieces are respectively located on the first upper floor and the second upper floor; wherein, the current floor is the second upper floor and the target When the floor is the first upper floor, the control device controls the driving device to pump air, so that the pneumatic carriage moves upward, and the blocks are retracted; when the control device receives the first pulse signal, it records the magnetic induction The test piece passes through the second upper magnetic part corresponding to the second upper layer, and the control device controls the driving device to stop pumping and release pressure, and the pneumatic carriage moves downward; the control device receives the corresponding first upper layer When the pulse signal of the third upper magnetic part is recorded, the magnetic sensing part passes through the third upper magnetic part corresponding to the first upper layer, and the flat stop device is controlled to extend the stoppers laterally , and when the pneumatic carriage moves down, the stoppers abut against the locating pieces corresponding to the first upper layer, so as to fix the pneumatic carriage in the hoistway. A method for controlling a pneumatic elevator system, wherein the pneumatic elevator system is set in a building, the building includes a plurality of floors, and the floors include a lower floor and at least one upper floor; the pneumatic elevator system includes a well, communicating with The lower layer and the at least one upper layer; a pneumatic car, which is movably located in the well; a driving device, which is arranged in the well, and the driving device is controlled to pump air or release pressure in the space of the well above the pneumatic car , so that the pneumatic carriage moves up or down; a plurality of magnetic parts, including a lower magnetic part and at least one upper magnetic part, wherein the lower magnetic part is arranged in the hoistway and corresponds to the lower layer; the at least one upper magnetic part is arranged on The hoistway corresponds to at least one upper layer; a magnetic sensing part is arranged on the pneumatic carriage and moves with the pneumatic carriage, and the magnetic sensing part is moved to correspond to any of the magnetic parts output a pulse signal; a control device, electrically connected to the magnetic sensor; the control method includes the following steps: A. The control device receives a start signal, and controls the drive device to make the pneumatic carriage according to the start signal B. During the movement of the pneumatic carriage, the magnetic sensing part outputs the pulse signal when it corresponds to any of the magnetic parts; C. The control device receives the pulse signal output by the magnetic sensing part, according to the Judging the position of the magnetic sensor during the movement of the pneumatic car by the sequence of the received pulse signals, and correspondingly controlling the driving device, so that the pneumatic car moves to one of the floors; wherein, the steps In A, the control device records a current floor where the pneumatic car is located; the activation signal includes a target floor; when the current floor is the lower floor and the target floor is the at least one upper floor, the control device controls the driving device Pump air to move the pneumatic carriage upwards; in step C, when the control device receives the first pulse signal, it judges that the magnetic sensing part passes the lower magnetic part, and the control device receives at least one pulse signal When the wave signal is detected, it is judged that the magnetic sensing element passes through the at least one upper magnetic element, and then the driving device is controlled to slow down the pumping and stop the pumping; wherein, the at least one upper magnetic element is plural and includes a first upper magnetic element and a second upper magnetic part, wherein the position of the second upper magnetic part is higher than the position of the first upper magnetic part; in step C, when the control device receives the pulse signal corresponding to the first upper magnetic part , judging that the magnetic sensing part passes the first upper magnetic part and controlling the driving device to slow down the pumping; when the control device receives the pulse signal corresponding to the second upper magnetic part, it controls the driving device to stop pumping; Wherein, the hoistway has a plurality of positioning parts, and these positioning parts are located at the at least one upper layer; a leveling stop device is arranged on the pneumatic carriage and is electrically connected to the control device, and the leveling stop The stop device includes a plurality of stops, and the leveling stop device can be controlled to extend these blocks laterally; in step C, when the control device receives the pulse signal corresponding to the second upper magnetic part , control the leveling stop device to laterally protrude the blocks, and when the pneumatic carriage moves down, the blocks abut against the positioning members to fix the pneumatic carriage in the hoistway. The control method of the pneumatic elevator system as described in claim 5, wherein in step A, when the control device controls the driving device to pump air, the driving device first pumps air at a first pumping rate, and then at a second The pumping rate is pumping, and the second pumping rate is higher than the first pumping rate; in step C, when the control device receives the pulse signal corresponding to the first upper magnetic part, it controls the driving device to use the Pumping at the first pumping rate. The control method of the pneumatic elevator system as described in claim 5, wherein, in step A, when the current floor is the at least one upper floor and the target floor is the lower floor, the control device controls the driving device to pump air so that the The pneumatic carriage moves upward, and the stoppers are retracted; in step C, when the control device receives the first pulse signal, it judges that the magnetic sensing part passes the second upper magnetic part, and the control device controls the The driving device stops pumping air and releases the pressure, and the pneumatic carriage moves downward; when the control device receives the pulse signal corresponding to the lower magnetic part, it judges that the magnetic sensing part passes the lower magnetic part, and controls the driving device Stop depressurizing. The control method of the pneumatic elevator system as described in claim 5, wherein the at least one upper floor is a plurality of floors, including a first upper floor and a second upper floor, and the second upper floor is higher than the first upper floor; The first upper layer and the second upper layer should be provided with a first upper magnetic piece and a second upper magnetic piece; these magnetic pieces further include a third upper magnetic piece, and the third upper magnetic piece is arranged on The shaft corresponds to the first upper layer and is higher than the second upper magnetic member located on the first upper layer; the shaft has the positioning members corresponding to the first upper layer and the second upper layer; wherein, in step A , the current floor is the second upper floor and the When the target floor is the first upper floor, the control device controls the driving device to pump air, so that the pneumatic carriage moves upward, and the stoppers are retracted; in step C, when the control device receives the first pulse signal , judging that the magnetic sensing part passes through the second upper magnetic part corresponding to the second upper layer, and the control device controls the driving device to stop pumping and release the pressure, and the pneumatic carriage moves downward; the control device receives the pair In response to the pulse signal of the third upper magnetic part of the first upper layer, it is judged that the magnetic sensing part passes through the third upper magnetic part corresponding to the first upper layer, and the leveling stop device is controlled to extend laterally When the pneumatic carriage moves down, the stoppers abut against the locating pieces corresponding to the first upper layer, so as to fix the pneumatic carriage in the well.

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