Elevator control circuit

Abstract

The present invention discloses an elevator control circuit, which includes: a control module, which is used to receive an external elevator call trigger signal, generate and output a corresponding control signal; a key module, the controlled end of the key module is connected to the control end of the control module, starts and outputs a key trigger signal when receiving the control signal, and is also used to output a key feedback signal; an operation module, the controlled end of the operation module is connected to the control end of the key module, and is used to control the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal and output a key feedback signal; a feedback module, which is respectively connected to the operation module and the key module, and is turned on and outputs a key feedback signal when receiving a key feedback signal. The technical solution of the present invention can improve the convenience and practicality of the elevator control system.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator control, and in particular to an elevator control circuit. Background Art

[0002] With the development of science and technology, robots can replace manual services, reduce people's labor burden, and bring great convenience to people. However, when robots perform cross-floor tasks, they need to spend more time to successfully take the elevator, or even fail to take the elevator. Summary of the invention

[0003] The main purpose of the present invention is to provide an elevator control circuit, aiming to improve the convenience and practicality of the elevator control system to facilitate robot riding.

[0004] To achieve the above object, the elevator control circuit proposed by the present invention is characterized by comprising:

[0005] The control module is used to generate and output a corresponding control signal when receiving an elevator call trigger signal input from the outside;

[0006] A key module, wherein a controlled end of the key module is connected to a control end of the control module; the key module starts and outputs a key trigger signal and a key feedback signal upon receiving the control signal;

[0007] An operation module, wherein a controlled end of the operation module is connected to a control end of the key module, and the operation module is used to control the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal, and output a key feedback signal;

[0008] A feedback module, wherein the feedback module is connected to the operation module and the button module respectively, and the output end of the feedback module is also connected to the control module. The feedback module is turned on when receiving a button feedback signal output by the button module and / or the operation module, and outputs the button feedback signal to the control module.

[0009] Preferably, the button module includes:

[0010] A key trigger circuit, wherein a controlled end of the key trigger circuit is connected to a control end of the control module, and the control end of the key trigger circuit is connected to a controlled end of the operation module, and the key trigger circuit outputs a key trigger signal upon receiving the control signal, so that the operation module controls the elevator to move to a position corresponding to the key trigger signal;

[0011] A key feedback circuit, wherein the controlled end of the key feedback circuit is connected to the control end of the control module, the control end of the key feedback circuit is connected to the controlled end of the feedback module, and the key feedback circuit is used to output a key feedback signal to the feedback module.

[0012] Preferably, the button module further includes:

[0013] A relay driving circuit, wherein a controlled end of the relay driving circuit is connected to a control end of the control module, and the relay driving circuit is used to control the relay to work when receiving a control signal;

[0014] A double-pole double-throw relay, wherein a controlled end of the double-pole double-throw relay is connected to a control end of the relay drive circuit, a group of contacts of the double-pole double-throw relay is connected to the operation module, another group of contacts of the double-pole double-throw relay is connected to the feedback module, and the double-pole double-throw relay is used to output a key trigger signal to the operation module when closed, and output a key feedback signal to the feedback module.

[0015] Preferably, the button module further includes:

[0016] A mode switching circuit, wherein the mode switching circuit is arranged in series between the key feedback circuit and the feedback module, the mode switching circuit has a first working mode and a second working mode, and when the mode switching circuit works in the first working mode, the key feedback circuit is controlled to be connected to the feedback module circuit;

[0017] When the mode switching circuit operates in the second operating mode, the key feedback circuit is controlled to be disconnected from the feedback module circuit.

[0018] Preferably, the mode switching circuit comprises:

[0019] A dip switch, wherein the input end of the dip switch is used to be connected to a power source;

[0020] A first switching switch circuit, wherein the first switching switch circuit is arranged in series between the key feedback circuit and the feedback module, a controlled end of the first switching switch circuit is connected to the output end of the dip switch, and / or a controlled end of the first switching switch circuit is connected to the control end of the control module;

[0021] When the dip switch is closed and / or the control module outputs a mode switching signal, the first switch circuit operates in the first operating mode to control the key feedback circuit to be connected to the feedback module circuit;

[0022] When the dip switch is disconnected and / or the control module does not output a mode switching signal, the first switch circuit operates in the second operating mode to control the key feedback circuit to be disconnected from the feedback module circuit.

[0023] Preferably, the first switching circuit comprises:

[0024] A switch, which is arranged in series between the key feedback circuit and the feedback module, and the switch is used for the mode switching circuit to control the key feedback circuit and the feedback module circuit to be connected when the switch is closed;

[0025] A switching switch driving circuit, wherein the control end of the switching switch driving circuit is connected to the controlled end of the switching switch, the controlled end of the switching switch driving circuit is connected to the output end of the dip switch, and / or the controlled end of the switching switch driving circuit is connected to the control end of the control module;

[0026] The switch driving circuit is used to control the switch to be closed when working in the first working mode, and is used to control the switch to be opened when working in the second working mode.

[0027] Preferably, the operation module includes:

[0028] An LED feedback circuit, wherein a control end of the LED feedback circuit is connected to a controlled end of the feedback module, and the LED feedback circuit is used to output a key feedback signal to the feedback module when turned on;

[0029] An elevator control system, wherein a controlled end of the elevator control system is connected to a control end of the button module, and a control end of the elevator control system is connected to a controlled end of the LED feedback circuit. The elevator control system is used to control the elevator to move to a position corresponding to the button trigger signal according to the button trigger signal, and to control the LED feedback circuit to work.

[0030] Preferably, the feedback module includes an optocoupler, and the controlled end of the optocoupler is respectively connected to the LED feedback circuit and the key module. The optocoupler is used to turn on when receiving the key feedback signal output by the key module and / or the LED feedback circuit, and output the key feedback signal to the control module.

[0031] Preferably, the mode switching circuit further comprises a second switching switch circuit, a controlled end of the second switching switch circuit is connected to the output end of the dip switch, and / or a controlled end of the second switching switch circuit is connected to the control end of the control module, and the control end of the second switching switch circuit is connected to the ground end of the optocoupler;

[0032] When the dip switch is closed and / or the control module outputs a mode switching signal, the second switch circuit operates in the first operating mode to control the ground terminal of the optical coupler to be connected to the ground circuit;

[0033] When the dip switch is disconnected and / or the control module does not output a mode switching signal, the second switch circuit operates in the second operating mode to control the ground terminal of the optocoupler to be disconnected from the ground circuit.

[0034] Preferably, a plurality of the button modules are arranged in series between the control module and the operation module, a plurality of the feedback modules are arranged in series between the control module and the operation module, and a plurality of the feedback modules are also connected to a plurality of the button modules in a one-to-one correspondence.

[0035] The technical solution of the present invention is to set a control module, an operation module, a key module and a feedback module. When the control module receives an elevator call trigger signal input from the outside, a corresponding control signal is generated and output to the key module, thereby controlling the key module to start and output a key trigger signal and a key feedback signal, and then the operation module controls the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal, and outputs a key feedback signal. The present invention also sets a feedback module, and is turned on when receiving a key feedback signal output by the key module and / or the operation module, and outputs the key feedback signal to the control module. The present invention realizes closed-loop detection of the key control of the elevator control system by setting a control module, an operation module, a key module and a feedback module, thereby improving the convenience and practicality of the elevator control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0037] Figure 1 A schematic diagram of a circuit module of an embodiment of an elevator control circuit of the present invention;

[0038] Figure 2 A schematic diagram of a circuit module of another embodiment of an elevator control circuit of the present invention;

[0039] Figure 3 A schematic diagram of a circuit module of another embodiment of an elevator control circuit of the present invention;

[0040] Figure 4 A schematic diagram of a circuit module of another embodiment of an elevator control circuit of the present invention;

[0041] Figure 5 This is a circuit structure diagram of an embodiment of an elevator control circuit of the present invention;

[0042] Figure 6 The figure is a circuit structure diagram of another embodiment of the elevator control circuit of the present invention.

[0043] Description of Figure Numbers:

[0044] Label name Label name 10 Control Module LED2 The second light emitting diode 20 Button module U1 First optocoupler 30 Run Module U2 Second optocoupler 40 Feedback module M1 The first field effect tube 50 Mode switching circuit M2 The second field effect tube 21 Key trigger circuit Q1~Q3 The first transistor ~ the third transistor 22 Key feedback circuit D1~D3 The first diode to the third diode 23 Relay drive circuit C1~C5 The first capacitor to the fifth capacitor 24 Double Pole Double Throw Relay V1~V5 The first power input terminal to the fifth power input terminal LED1 First light emitting diode R1~R11 The first resistor R1 to the eleventh resistor

[0045] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0049] The invention provides an elevator control circuit.

[0050] Reference Figure 1 In one embodiment, the elevator control circuit includes:

[0051] The control module 10 is used to generate and output a corresponding control signal when receiving an elevator call trigger signal input from the outside;

[0052] A key module 20, wherein the controlled end of the key module 20 is connected to the control end of the control module 10; the key module 20 starts and outputs a key trigger signal and a key feedback signal upon receiving the control signal;

[0053] An operation module 30, wherein the controlled end of the operation module 30 is connected to the control end of the button module 20, and the operation module 30 is used to control the elevator to move to a position corresponding to the button trigger signal according to the button trigger signal, and output a button feedback signal;

[0054] A feedback module 40, wherein the feedback module 40 is connected to the operation module 30 and the button module 20 respectively, and the output end of the feedback module 40 is also connected to the control module 10. The feedback module 40 is turned on when receiving a button feedback signal output by the button module 20 and / or the operation module 30, and outputs the button feedback signal to the control module 10.

[0055] In this embodiment, the control module 10 can realize wireless communication with the outside by setting a control chip and a WIFI module. The control module 10 can also be provided with a Bluetooth module, a voice recognition module, etc., so as to send an elevator call trigger signal to the control module 10 via Bluetooth or voice. This embodiment can be applied to the scene where the service robot needs to take the elevator. The robot can realize autonomous elevator riding and perform cross-floor tasks by cooperating with the elevator control circuit. When the robot needs to take the elevator, the robot can send a call trigger signal to the control module 10 according to the floor to be visited through wireless communication and other methods. After receiving the call trigger signal sent by the robot, the control module 10 will output a corresponding control signal to the corresponding key module 20 according to the call trigger signal, and control the key module 20 to start. After the key module 20 is started, it will output a key trigger signal to the operation module 30, so that the operation module 30 starts working after receiving the key trigger signal, and controls the elevator to go to the corresponding floor. At the same time, the key module 20 and the operation module 30 will also output a key feedback signal to the feedback module 40, so that the feedback module 40 is turned on and outputs the key feedback signal to the control module 10. After receiving the key feedback signal, the control module 10 can send the received key feedback signal to the robot, so that the robot can determine the running state of the elevator through the key feedback signal. When the key operation is abnormal and the control module 10 fails to receive the key feedback signal, the robot can report the fault, or resend the call trigger signal to the control module 10 to re-control the elevator. In this way, the robot can autonomously take the elevator to the floor to be visited.

[0056] The elevator control circuit can use three signal feedback methods. The first is that the key module 20 outputs a key feedback signal. The key module 20 can be set with two output signals, namely, a key trigger signal and a key feedback signal. When the key module 20 receives the control signal output by the control module 10, it outputs a key trigger signal to the operation module 30, so that the operation module 30 controls the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal. At the same time, it outputs a key feedback signal to the feedback module 40, so that the feedback module 40 is turned on when receiving the key feedback signal, and outputs the key feedback signal to the control module 10, so that the control module 10 determines the response of the key module 20. In this way, the elevator key control can be made into a closed-loop operation, and the control module 10 can know the action that the key module 20 has sent the key trigger signal through the key feedback signal. It can be understood that in the first signal feedback mode, when the button module 20 receives the control signal output by the control module 10, it outputs the button feedback signal and outputs it to the control module 10 through the feedback module 40. In this way, during production testing, there is no need to connect the elevator control circuit to the elevator. It only needs to ensure that the control module 10 can normally receive the feedback signal output by the button module 20 after sending the control signal, so that it can be known that the button module 20 and the feedback module 40 can work normally.

[0057] The second signal feedback method is that the operation module 30 outputs a key feedback signal. The operation module 30 can be connected to the feedback module 40. When the operation module 30 receives the key trigger signal output by the key module 20, the operation module 30 will control the elevator operation and output the key feedback signal to the feedback module 40, so that the feedback module 40 is turned on when receiving the key feedback signal, and outputs the key feedback signal to the control module 10; in addition, when the operation module 30 responds to the key module 20 and controls the elevator operation, in an elevator with a key cancel function, if the elevator button is canceled by the user after the elevator starts running, the operation module 30 can control the elevator to stop executing the action corresponding to the key trigger signal, and the operation module 30 will stop outputting the key feedback signal to the control module 10 via the feedback module 40. The control module 10 can determine the running status of the elevator according to whether the key feedback signal is received and the duration of the key feedback signal.

[0058] The third signal feedback method is a combination of the first two feedback methods. Since the operation module 30 is based on the control of the key module 20, the response time of the operation module 30 may be slightly delayed compared with the key module 20. In this embodiment, the operation module 30 and the key module 20 simultaneously output key feedback signals to the control module 10. In this way, the control module 10 can receive two key feedback signals successively. The control module 10 can determine the response of the operation module 30 and control the elevator operation according to the number and duration of the received key feedback signals.

[0059] The present invention sets a control module 10, and when the control module 10 receives an elevator call trigger signal input from the outside, a corresponding control signal is generated and output to the key module 20, thereby controlling the key module 20 to start and output a key trigger signal and a key feedback signal, so that the operation module 30 controls the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal, and outputs a key feedback signal. The present invention also sets a feedback module 40, and is turned on when receiving a key feedback signal output by the key module 20 and / or the operation module 30, and outputs the key feedback signal to the control module 10. The present invention can perform closed-loop detection on the control signal output by the control module 10, so that the control module 10 can know the operating status of the elevator in real time, and improve the stability of key control. At the same time, the present invention is also provided with a variety of signal feedback methods, and users can use different signal feedback methods in combination with actual application scenarios to complete the closed-loop detection of key control, which can not only meet the different needs of users, but also improve the accuracy of closed-loop detection.

[0060] In some elevator control schemes, each elevator button requires an operation interface, so at least ten or more button control interfaces are required, and dozens of them are required. Docking dozens of test access test fixtures during production testing makes the test efficiency low, and when in use, whether the elevator control is successful or not cannot get feedback on the elevator button operation. However, the present invention does not need to be connected to the elevator during production testing, and the first signal feedback method can be directly selected for testing. In this way, whether the control module 10 can receive the button feedback signal output by the button module 20 can be used to determine whether the button module 20 and the feedback module 40 can work normally. The cumbersome interface fixture loading and unloading operations can be avoided during production testing, which greatly improves the test efficiency of the present invention.

[0061] Reference Figure 2 In one embodiment, the button module 20 includes:

[0062] A key trigger circuit 21, wherein the controlled end of the key trigger circuit 21 is connected to the control end of the control module 10, and the control end of the key trigger circuit 21 is connected to the controlled end of the operation module 30. When receiving the control signal, the key trigger circuit 21 outputs a key trigger signal so that the operation module 30 controls the elevator to move to a position corresponding to the key trigger signal;

[0063] A key feedback circuit 22, wherein the controlled end of the key feedback circuit 22 is connected to the control end of the control module 10, and the control end of the key feedback circuit 22 is connected to the controlled end of the feedback module 40, and the key feedback circuit 22 is used to output a key feedback signal to the feedback module 40.

[0064] In this embodiment, the key trigger circuit 21 and the key feedback circuit 22 generate a key trigger signal and a key feedback signal respectively when receiving the control signal output by the control module 10. Specifically, when the key trigger circuit 21 receives the control signal output by the control module 10, it outputs the key trigger signal to the operation module 30, so that the operation module 30 controls the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal. When the key feedback circuit 22 receives the control signal output by the control module 10, it outputs the key trigger signal to the feedback module 40, so that the feedback module 40 is turned on when receiving the key feedback signal, and outputs the key feedback signal to the control module 10, so that the control module 10 determines the operating state of the elevator. The present invention sets a key trigger circuit 21 and a key feedback circuit 22, so that the key module 20 can synchronously output a key trigger signal and a key feedback signal after receiving a control signal. In this way, the key feedback signal can be output to the feedback module 40 while the key trigger signal is output to control the movement of the elevator, so that the elevator key control becomes a closed-loop operation. The control module 10 can know the action that the key module 20 has sent the key trigger signal through the key feedback signal, thereby improving the stability of the key control.

[0065] Reference Figure 3 In one embodiment, the button module 20 further includes:

[0066] A relay driving circuit 23, wherein a controlled end of the relay driving circuit 23 is connected to a control end of the control module 10, and the relay driving circuit 23 is used to control the relay to work when receiving a control signal;

[0067] A double-pole double-throw relay 24, wherein the controlled end of the double-pole double-throw relay 24 is connected to the control end of the relay drive circuit 23, a group of contacts of the double-pole double-throw relay 24 is connected to the operation module 30, and another group of contacts of the double-pole double-throw relay 24 is connected to the feedback module 40. The double-pole double-throw relay 24 is used to output a key trigger signal to the operation module 30 when closed, and output a key feedback signal to the feedback module 40.

[0068] In this embodiment, the double-pole double-throw relay 24 can be a DPDT relay, which has two sets of contacts, one of which is connected to the operation module 30, and the other is connected to the feedback module 40. When the relay drive circuit 23 receives the control signal output by the control module 10, the relay drive circuit 23 controls the two sets of contacts of the relay to close at the same time, and the set of contacts connected to the operation module 30 outputs a key trigger signal to the operation module 30, thereby controlling the operation module 30 to work and controlling the elevator to move to a position corresponding to the key trigger signal. The other set of contacts outputs a key trigger signal to the feedback module 40 to trigger the feedback module 40 to conduct and output the key feedback signal to the control module 10.

[0069] Among them, Figure 5 , Figure 6 As shown, the relay driving circuit 23 includes a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a second diode D2, a second transistor Q2, a first field effect transistor M1, a first power input terminal V1, a second power input terminal V2, a third power input terminal V3 and a first optical coupler U1. After the control module 10 receives the elevator call trigger signal sent by the robot, the control module 10 outputs a control signal to control the second transistor Q2 to be turned on, so that the power of the first power input terminal V1 is output to the ground terminal of the second transistor Q2 through the first optical coupler U1, thereby controlling the first optical coupler U1 to be turned on so that the power of the second power input terminal V2 can be output to the gate of the first field effect transistor M1 through the first optical coupler U1, so as to control the first field effect transistor M1 to be turned on, so that the power of the third power input terminal V3 supplies power to the coil of the relay, so that the relay is electrically attracted. In this embodiment, contact 5 and contact 6 are connected to the operation module 30. When the relay is energized, contact 5 is connected to contact 6 to output a key trigger signal to the operation module 30. Contact 3 and contact 4 are connected to the feedback module 40. When the relay is energized, contact 3 is connected to contact 4 to output a key feedback signal to the feedback module 40. In this embodiment, a first light-emitting diode LED1 is connected in series between the contact 4 of the relay and the feedback module 40 as an indicator light. When the relay is energized and outputs a key feedback signal to the feedback module 40, the first light-emitting diode LED1 is turned on and emits light. In this way, during production testing, there is no need to connect the elevator control circuit to the elevator. After the control module 10 sends the control signal, it is only necessary to observe whether the control module 10 can normally receive the feedback signal output by the key module 20, or observe whether the first light-emitting diode LED1 can normally emit light, to know whether the key module 20 and the feedback module 40 can work normally. At the same time, the first light-emitting diode LED1 can also play a role in preventing backflow.

[0070] The present invention sets a relay driving circuit 23 and a double-pole double-throw relay 24 to synchronously output a key trigger signal and a key feedback signal through two sets of contacts of the double-pole double-throw relay 24. In this way, the elevator key control can be made into a closed-loop operation. The control module 10 can know that the key module 20 has sent the key trigger signal through the key feedback signal, thereby improving the stability of the key control. At the same time, the present invention does not need to be connected to the elevator during production testing. Whether the double-pole double-throw relay 24 can output a key feedback signal to the control module 10 can be determined to determine whether the key module 20 and the feedback module 40 can work normally. In this way, the cumbersome interface fixture loading and unloading operations can be avoided during production testing, thereby greatly improving the testing efficiency of the present invention. The present invention also uses an optical coupler to electrically isolate the elevator control part and the elevator control part, thereby reducing signal crosstalk between circuits and improving the stability of the key control.

[0071] Reference Figure 4 In one embodiment, the elevator control circuit further includes:

[0072] A mode switching circuit 50, wherein the mode switching circuit 50 is arranged in series between the key feedback circuit 22 and the feedback module 40, and the mode switching circuit 50 has a first working mode and a second working mode. When the mode switching circuit 50 works in the first working mode, the key feedback circuit 22 and the feedback module 40 are connected to each other;

[0073] When the mode switching circuit 50 operates in the second operating mode, the key feedback circuit 22 is controlled to be disconnected from the feedback module 40 .

[0074] In this embodiment, a mode switching circuit 50 is provided to control the signal feedback mode. The mode switching circuit 50 is provided in series between the key feedback circuit 22 and the feedback module 40. The mode switching circuit 50 can switch the signal feedback mode by controlling whether the path between the key feedback circuit 22 and the feedback module 40 is turned on. When the mode switching circuit 50 works in the first working mode, the circuit between the key feedback circuit 22 and the feedback module 40 is turned on. The key feedback circuit 22 can output the key feedback signal to the feedback module 40 through the path, so that the feedback module 40 is turned on when receiving the key feedback signal, and outputs the key feedback signal to the control module 10.

[0075] When the mode switching circuit 50 operates in the second operating mode, the path between the key feedback circuit 22 and the feedback module 40 is disconnected, and the key feedback circuit 22 cannot send the key feedback signal to the feedback module 40. At this time, the operation module 30 can be connected to the feedback module 40. When the operation module 30 receives the key trigger signal output by the key module 20, the operation module 30 will control the elevator operation and output the key feedback signal to the feedback module 40 at the same time, so that the feedback module 40 is turned on when receiving the key feedback signal, and outputs the key feedback signal to the control module 10.

[0076] Both working modes can make the feedback module 40 output a feedback signal to the control module 10. In the first working mode, the control module 10 can determine the response of the button module 20 through the button feedback signal; in the second working mode, the control module 10 can determine the response of the operation module 30 and control the elevator operation through the button feedback signal; in addition, when the operation module 30 responds to the button module 20 and controls the elevator operation, in an elevator with a button cancellation function, if the elevator button is canceled by the user after the elevator starts running, the operation module 30 can control the elevator to stop executing the action corresponding to the button trigger signal, and the operation module 30 will stop outputting the button feedback signal to the control module 10 through the feedback module 40, and the control module 10 can determine the running state of the elevator according to whether the button feedback signal is received and the duration of the button feedback signal. The present invention sets a mode switching circuit 50 to have two working modes, so that the application scenarios are more diversified. Users can use different signal feedback methods to complete the closed-loop detection of button control in combination with actual application scenarios, which can not only meet the different needs of users, but also improve the accuracy of closed-loop detection.

[0077] Reference Figures 1 to 6 In one embodiment, the mode switching circuit 50 includes:

[0078] A dip switch, wherein the input end of the dip switch is used to be connected to a power source;

[0079] A first switching switch circuit, wherein the first switching switch circuit is arranged in series between the key feedback circuit 22 and the feedback module 40, a controlled end of the first switching switch circuit is connected to the output end of the dip switch, and / or a controlled end of the first switching switch circuit is connected to the control end of the control module 10;

[0080] When the dip switch is closed, and / or the control module 10 outputs a mode switching signal, the first switch circuit operates in the first operating mode to control the key feedback circuit 22 to be connected to the feedback module 40 circuit;

[0081] When the dip switch is disconnected and / or the control module 10 does not output a mode switching signal, the first switch circuit operates in the second operating mode to control the key feedback circuit 22 to be disconnected from the feedback module 40 circuit.

[0082] Furthermore, the first switching circuit includes:

[0083] A switch, which is arranged in series between the key feedback circuit 22 and the feedback module 40, and the switch is used for the mode switching circuit 50 to control the key feedback circuit 22 and the feedback module 40 to be connected when the switch is closed;

[0084] A switch driving circuit, wherein the control end of the switch driving circuit is connected to the controlled end of the switch, the controlled end of the switch driving circuit is connected to the output end of the dip switch, and / or the controlled end of the switch driving circuit is connected to the control end of the control module 10;

[0085] The switch driving circuit is used to control the switch to be closed when working in the first working mode, and is used to control the switch to be opened when working in the second working mode.

[0086] In this embodiment, the switch is arranged in series between the key feedback circuit 22 and the feedback module 40, and is turned on / off based on the control of the switch driving circuit. Specifically, in the first working mode, the switch driving circuit controls the switch to be turned on, thereby connecting the key feedback circuit 22 and the feedback module 40, so that the key feedback circuit 22 can output the key feedback signal to the feedback module 40 through the path; in the second working mode, the switch driving circuit controls the switch to be in the off state, the path between the key feedback circuit 22 and the feedback module 40 is disconnected, and the key feedback circuit 22 cannot output the key feedback signal to the feedback module 40 through the path. At this time, the operation module 30 outputs the key feedback signal to the feedback module 40.

[0087] It can be understood that, in the first working mode, the switch driving circuit controls the switch to be turned on, thereby connecting the key feedback circuit 22 and the feedback module 40, so that the key feedback circuit 22 can output the key feedback signal to the feedback module 40 through the path, and at this time, the operation module 30 can also output the key feedback signal to the feedback module 40. That is, in the first working mode, the key feedback circuit 22 and the operation module 30 can simultaneously output the key feedback signal to the feedback module 40 to improve the reliability of the signal feedback.

[0088] Among them, Figure 5As shown, the switching switch driving circuit includes a fourth power input terminal V4, a first diode D1, a first resistor R1, a second resistor R2, a seventh resistor R7, a first capacitor C1 and a first transistor Q1, and the switching switch is a second field effect transistor M2. The base of the first transistor Q1 can be connected to the control module 10 and controlled by the control module 10, or it can be connected to the power supply through the dip switch and controlled by the dip switch, or it can be controlled by the control module 10 and the dip switch at the same time. When the dip switch is closed and the control module 10 outputs a certain voltage level, sufficient voltage can be provided to control the first transistor Q1 to turn on; in the first working mode, the first transistor Q1 is in the on state under the control of the dip switch or the control module 10, and the power of the fourth power input terminal V4 will be output to the ground through the first transistor. At this time, The gate terminal voltage of the second field effect tube M2 will be pulled up to make the second field effect tube M2 turned on, thereby connecting the key feedback circuit 22 and the feedback module 40, so that the key feedback circuit 22 can output the key feedback signal to the feedback module 40; in the second working mode, the first transistor Q1 is in a disconnected state under the control of the dip switch or the control module 10. At this time, the gate terminal voltage of the second field effect tube M2 is zero, the second field effect tube M2 is in a disconnected state, and the key feedback circuit 22 cannot output the key feedback signal to the feedback module 40 through the second field effect tube M2.

[0089] The present invention sets a first switching switch circuit to control the circuit conduction / disconnection between the key feedback circuit 22 and the feedback module 40, thereby realizing the switching of the signal feedback mode. At the same time, the present invention can also control whether the first switching switch circuit connects the key feedback circuit 22 and the feedback module 40 through different control methods, making the application scenarios of the present invention more diversified. Users can use different signal feedback methods in combination with actual application scenarios to complete closed-loop detection of key control, which can not only meet the different needs of users, but also improve the accuracy of closed-loop detection.

[0090] Reference Figures 1 to 6 In one embodiment, the operation module 30 includes:

[0091] An LED feedback circuit, wherein a control end of the LED feedback circuit is connected to a controlled end of the feedback module 40, and the LED feedback circuit is used to output a key feedback signal to the feedback module 40 when turned on;

[0092] An elevator control system, wherein the controlled end of the elevator control system is connected to the control end of the button module 20, and the control end of the elevator control system is connected to the controlled end of the LED feedback circuit. The elevator control system is used to control the elevator to move to a position corresponding to the button trigger signal according to the button trigger signal, and control the LED feedback circuit to work.

[0093] In this embodiment, the LED feedback circuit in the operation module 30 is connected to the feedback module 40, specifically, the second light-emitting diode LED2 is connected to the feedback module 40. When the elevator control system receives the key trigger signal, the elevator control system controls the elevator to run and controls the LED feedback circuit to turn on. At this time, the second light-emitting diode LED2 lights up and outputs the key feedback signal to the feedback module 40, so that the feedback module 40 is turned on when receiving the key feedback signal, and outputs the key feedback signal to the control module 10. In addition, a connector can be provided to connect the LED feedback circuit to the feedback module 40 through the connector, and to connect the elevator control system to the key trigger circuit 21 through the connector. In this way, during installation, it is only necessary to connect the elevator line to the connector accordingly.

[0094] The present invention sets an LED feedback circuit and an elevator control system, so that the elevator control system controls the elevator operation and the LED feedback circuit when receiving a key trigger signal, so that the LED feedback circuit outputs a key feedback signal to the feedback module 40, so that the feedback module 40 is turned on when receiving the key feedback signal, and outputs the key feedback signal to the control module 10, so that the control module 10 determines that the operation module 30 responds and controls the elevator operation. The present invention can perform closed-loop detection on the control signal output by the control module 10, so that the control module 10 can know the operation status of the elevator in real time, and improve the stability of key control. In addition, the present invention can also connect the key trigger circuit 21 and the feedback module 40 to the operation module 30 correspondingly through a connector. In this way, when installing the present invention in the elevator, it is only necessary to connect the elevator line to the connector accordingly, which can simplify the installation or disassembly process of the present invention and improve the convenience of the product.

[0095] Reference Figures 1 to 6 In one embodiment of the present invention, the feedback module 40 includes an optocoupler, and the controlled end of the optocoupler is connected to the LED feedback circuit and the button module 20 respectively. The optocoupler is used to be turned on when receiving the button feedback signal output by the button module 20 and / or the LED feedback circuit, and output the button feedback signal to the control module 10.

[0096] Further, the mode switching circuit 50 further includes a second switching switch circuit, the controlled end of the second switching switch circuit is connected to the output end of the dip switch, and / or the controlled end of the second switching switch circuit is connected to the control end of the control module 10, and the control end of the second switching switch circuit is connected to the ground end of the optocoupler;

[0097] When the dip switch is closed and / or the control module 10 outputs a mode switching signal, the second switching circuit operates in the first operating mode to control the ground terminal of the optical coupler to be connected to the ground circuit;

[0098] When the dip switch is disconnected and / or the control module 10 does not output a mode switching signal, the second switch circuit operates in the second operating mode to control the ground terminal of the optocoupler to be disconnected from the ground circuit.

[0099] In this embodiment, the second switching switch circuit is connected to the ground terminal of the optocoupler to control whether the ground terminal of the optocoupler is connected to the ground; the first switching switch circuit and the second switching switch circuit can control the circuit between the key feedback circuit 22 and the feedback module 40 to be turned on / off to achieve the switching of the signal feedback mode; specifically, in the first working mode, the first switching switch circuit and the second switching switch circuit are turned on under the control of the dial switch or the control module 10, thereby connecting the key feedback circuit 22 and the feedback module 40, so that the key feedback circuit 22 can output the key feedback signal to the feedback module 40 through the path, and control the optocoupler to be turned on to output the key feedback signal to the control module 10; in the second working mode, the first switching switch circuit and the second switching switch circuit are in the off state under the control of the dial switch or the control module 10, the path between the key feedback circuit 22 and the feedback module 40 is disconnected, and the key feedback circuit 22 cannot output the key feedback signal to the feedback module 40 through the path. At this time, the operation module 30 outputs the key feedback signal to the feedback module 40 and controls the optocoupler to be turned on to output the key feedback signal to the control module 10.

[0100] Among them, Figure 5As shown, the feedback module 40 includes an eighth resistor R8, a ninth resistor R9, a second optocoupler U2 and a fifth power input terminal V5, and the second switching circuit includes a seventh power input terminal, a tenth resistor R10, an eleventh resistor R11, a fifth capacitor, a third diode D3 and a third transistor Q3. In the first working mode, the third transistor Q3 is in the on state under the control of the dip switch or the control module 10, and the key feedback signal output by the key feedback circuit 22 will be output to the ground terminal of the third transistor Q3 through the second optocoupler U2 to control the conduction of the second optocoupler U2. After the second optocoupler U2 is turned on, the power of the fifth power input terminal V5 is output to the control module 10 through the ninth resistor R9, that is, the key feedback signal is output to complete the signal feedback work; in the second working mode, the third transistor Q3 is in the off state under the control of the dip switch or the control module 10. At this time, the second optocoupler U2 is connected in parallel with the second light-emitting diode LED2 of the operating module 30. When the operating module 30 controls the second light-emitting diode LED2 to turn on and emit light, the voltage difference across the second light-emitting diode LED2 will control the second optocoupler U2 to turn on, thereby outputting the key feedback signal to complete the signal feedback work.

[0101] The present invention uses an optical coupler to electrically isolate the ladder control part from the elevator control part, reducing the signal crosstalk between the circuits and improving the stability of the button control feedback. The present invention also controls the first switching switch circuit and the second switching switch circuit to control the circuit conduction / disconnection between the button feedback circuit 22 and the feedback module 40, thereby switching the signal feedback mode. At the same time, the present invention can also control whether the first switching switch circuit and the second switching switch circuit are connected to the button feedback circuit 22 and the feedback module 40 through different control methods, making the application scenarios of the present invention more diversified. Users can use different signal feedback methods in combination with actual application scenarios to complete the closed-loop detection of button control and improve the accuracy of closed-loop detection.

[0102] Reference Figures 1 to 6 In one embodiment of the present invention, a plurality of the button modules 20 are arranged in series between the control module 10 and the operation module 30, a plurality of the feedback modules 40 are arranged in series between the control module 10 and the operation module 30, and a plurality of the feedback modules 40 are also connected to the plurality of the button modules 20 in a one-to-one correspondence.

[0103] In this embodiment, a plurality of button modules 20 and feedback modules 40 are arranged between the control module 10 and the operation module 30, each button module 20 and feedback module 40 corresponds to an elevator floor, the control module 10 can send a control signal to the corresponding button module 20 according to the elevator call trigger signal, the button module 20 outputs a button trigger signal to the operation module 30 after receiving the control signal, the operation module 30 starts working after receiving the button trigger signal, and controls the elevator to go to the corresponding floor, and the plurality of feedback modules 40 are turned on when receiving the button feedback signal output by the button module 20 and / or the operation module 30, and output the button feedback signal to the control module 10;

[0104] The present invention sets a plurality of button modules 20 so that the control module 10 can output a plurality of control signals to the corresponding button modules 20, thereby controlling the plurality of button modules 20 to start and output button trigger signals and button feedback signals, and then the operation module 30 controls the elevator to move to a position corresponding to the plurality of button trigger signals according to the plurality of button trigger signals, and outputs a plurality of button feedback signals. The present invention also sets a plurality of feedback modules 40, and conducts when receiving a plurality of button feedback signals output by the button module 20 and / or the operation module 30, and outputs a plurality of button feedback signals to the control module 10. The present invention can perform closed-loop detection on the plurality of control signals output by the control module 10, so that the control module 10 can know the operation status of the elevator in real time, and improve the stability of button control.

[0105] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An elevator control circuit, characterized in that: include: The control module is used to generate and output a corresponding control signal when receiving an elevator call trigger signal input from the outside; A key module, wherein a controlled end of the key module is connected to a control end of the control module; the key module starts and outputs a key trigger signal and a key feedback signal upon receiving the control signal; An operation module, wherein a controlled end of the operation module is connected to a control end of the key module, and the operation module is used to control the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal, and output a key feedback signal; A feedback module, wherein the feedback module is connected to the operation module and the key module respectively, and an output end of the feedback module is also connected to the control module. The feedback module is turned on upon receiving a key feedback signal output by the key module and / or the operation module, and outputs the key feedback signal to the control module; The key module comprises: A key trigger circuit, wherein a controlled end of the key trigger circuit is connected to a control end of the control module, and the control end of the key trigger circuit is connected to a controlled end of the operation module, and the key trigger circuit outputs a key trigger signal upon receiving the control signal, so that the operation module controls the elevator to move to a position corresponding to the key trigger signal; A key feedback circuit, wherein a controlled end of the key feedback circuit is connected to a control end of the control module, and a control end of the key feedback circuit is connected to a controlled end of the feedback module, and the key feedback circuit is used to output a key feedback signal to the feedback module; The button module also includes: A relay driving circuit, wherein a controlled end of the relay driving circuit is connected to a control end of the control module, and the relay driving circuit is used to control the relay to work when receiving a control signal; A double-pole double-throw relay, wherein a controlled end of the double-pole double-throw relay is connected to a control end of the relay drive circuit, a group of contacts of the double-pole double-throw relay is connected to the operation module, another group of contacts of the double-pole double-throw relay is connected to the feedback module, and the double-pole double-throw relay is used to output a key trigger signal to the operation module and output a key feedback signal to the feedback module when closed; The button module also includes: A mode switching circuit, wherein the mode switching circuit is arranged in series between the key feedback circuit and the feedback module, the mode switching circuit has a first working mode and a second working mode, and when the mode switching circuit works in the first working mode, the key feedback circuit is controlled to be connected to the feedback module circuit; When the mode switching circuit operates in the second operating mode, the key feedback circuit is controlled to be disconnected from the feedback module circuit.

2. The elevator control circuit according to claim 1, characterized in that: The mode switching circuit comprises: A dip switch, wherein the input end of the dip switch is used to be connected to a power source; A first switching switch circuit, wherein the first switching switch circuit is arranged in series between the key feedback circuit and the feedback module, a controlled end of the first switching switch circuit is connected to the output end of the dip switch, and / or a controlled end of the first switching switch circuit is connected to the control end of the control module; When the dip switch is closed and / or the control module outputs a mode switching signal, the first switch circuit operates in the first operating mode to control the key feedback circuit to be connected to the feedback module circuit; When the dip switch is disconnected and / or the control module does not output a mode switching signal, the first switch circuit operates in the second operating mode to control the key feedback circuit to be disconnected from the feedback module circuit.

3. The elevator control circuit according to claim 2, characterized in that: The first switching circuit comprises: A switch, which is arranged in series between the key feedback circuit and the feedback module, and the switch is used for the mode switching circuit to control the key feedback circuit and the feedback module circuit to be connected when the switch is closed; A switching switch driving circuit, wherein the control end of the switching switch driving circuit is connected to the controlled end of the switching switch, the controlled end of the switching switch driving circuit is connected to the output end of the dip switch, and / or the controlled end of the switching switch driving circuit is connected to the control end of the control module; The switch driving circuit is used to control the switch to be closed when working in the first working mode, and is used to control the switch to be opened when working in the second working mode.

4. The elevator control circuit according to claim 2, characterized in that: The operation module includes: An LED feedback circuit, wherein a control end of the LED feedback circuit is connected to a controlled end of the feedback module, and the LED feedback circuit is used to output a key feedback signal to the feedback module when turned on; An elevator control system, wherein a controlled end of the elevator control system is connected to a control end of the button module, and a control end of the elevator control system is connected to a controlled end of the LED feedback circuit. The elevator control system is used to control the elevator to move to a position corresponding to the button trigger signal according to the button trigger signal, and to control the LED feedback circuit to work.

5. The elevator control circuit according to claim 4, characterized in that: The feedback module includes an optocoupler, and the controlled end of the optocoupler is connected to the LED feedback circuit and the key module respectively. The optocoupler is used to turn on when receiving the key feedback signal output by the key module and / or the LED feedback circuit, and output the key feedback signal to the control module.

6. The elevator control circuit according to claim 5, characterized in that: The mode switching circuit further includes a second switching switch circuit, wherein a controlled end of the second switching switch circuit is connected to an output end of the dip switch, and / or a controlled end of the second switching switch circuit is connected to a control end of the control module, and a control end of the second switching switch circuit is connected to a ground end of the optocoupler; When the dip switch is closed and / or the control module outputs a mode switching signal, the second switch circuit operates in the first operating mode to control the ground terminal of the optical coupler to be connected to the ground circuit; When the dip switch is disconnected and / or the control module does not output a mode switching signal, the second switch circuit operates in the second operating mode to control the ground terminal of the optocoupler to be disconnected from the ground circuit.

7. The elevator control circuit according to any one of claims 1 to 6, characterized in that: The plurality of button modules are arranged in series between the control module and the operation module, the plurality of feedback modules are arranged in series between the control module and the operation module, and the plurality of feedback modules are also connected to the plurality of button modules in a one-to-one correspondence.

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