阅读说明：本技术 电梯控制电路 (Elevator control circuit ) 是由 顾震江 王辉 于 2021-08-17 设计创作，主要内容包括：本发明公开一种电梯控制电路,该电梯控制电路包括：控制模块,用于接收外部输入的呼梯触发信号,时产生对应的控制信号并输出；按键模块,按键模块的受控端与控制模块的控制端连接,在接收到控制信号时启动并输出按键触发信号,还用于输出按键反馈信号；运行模块,运行模块的受控端与按键模块的控制端连接,用于根据按键触发信号控制电梯运动至与按键触发信号对应的位置并输出按键反馈信号；反馈模块,分别与运行模块及按键模块连接,在接收到按键反馈信号时导通并输出按键反馈信号。本发明技术方案可以提高梯控系统的便利性与实用性。(The invention discloses an elevator control circuit, which comprises: the control module is used for receiving an externally input call triggering signal, generating a corresponding control signal and outputting the control signal; the controlled end of the key module is connected with the control end of the control module, starts and outputs a key trigger signal when receiving the control signal, and is also used for outputting a key feedback signal; the controlled end of the operation module is connected with the control end of the key module and used for controlling the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal and outputting a key feedback signal; and the feedback module is respectively connected with the operation module and the key module, and is conducted and outputs the key feedback signal when receiving the key feedback signal. The technical scheme of the invention can improve the convenience and the practicability of the ladder control system.)

1. An elevator control circuit, comprising:

the control module is used for generating and outputting a corresponding control signal when receiving an externally input call triggering signal;

the controlled end of the key module is connected with the control end of the control module; the key module starts and outputs a key trigger signal and a key feedback signal when receiving the control signal;

the controlled end of the operation module is connected with the control end of the key module, and the operation module is used for controlling the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal and outputting a key feedback signal;

the feedback module is respectively connected with the operation module and the key module, the output end of the feedback module is also connected with the control module, and the feedback module is conducted 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.

2. The elevator control circuit of claim 1, wherein the key module comprises:

the controlled end of the key trigger circuit is connected with the control end of the control module, the control end of the key trigger circuit is connected with the controlled end of the operation module, and the key trigger circuit outputs a key trigger signal when receiving the control signal so that the operation module controls the elevator to move to a position corresponding to the key trigger signal;

and the controlled end of the key feedback circuit is connected with the control end of the control module, the control end of the key feedback circuit is connected with the controlled end of the feedback module, and the key feedback circuit is used for outputting a key feedback signal to the feedback module.

3. The elevator control circuit of claim 2, wherein the key module further comprises:

the controlled end of the relay driving circuit is connected with the control end of the control module, and the relay driving circuit is used for controlling the relay to work when receiving a control signal;

the double-pole double-throw relay comprises a double-pole double-throw relay, wherein a controlled end of the double-pole double-throw relay is connected with a control end of the relay driving circuit, one group of contacts of the double-pole double-throw relay is connected with the operation module, the other group of contacts of the double-pole double-throw relay is connected with the feedback module, and the double-pole double-throw relay is used for outputting a key trigger signal to the operation module and outputting a key feedback signal to the feedback module when the double-pole double-throw relay is closed.

4. The elevator control circuit of claim 2, wherein the key module further comprises:

the mode switching circuit is arranged between the key feedback circuit and the feedback module in series, the mode switching circuit has a first working mode and a second working mode, and the mode switching circuit controls the key feedback circuit to be conducted with the feedback module circuit when working in the first working mode;

and when the mode switching circuit works in the second working mode, the key feedback circuit is controlled to be disconnected with the feedback module circuit.

5. The elevator control circuit of claim 4, wherein the mode switching circuit comprises:

the input end of the dial switch is used for being connected with a power supply;

the first change-over switch circuit is arranged between the key feedback circuit and the feedback module in series, a controlled end of the first change-over switch circuit is connected with an output end of the dial switch, and/or a controlled end of the first change-over switch circuit is connected with a control end of the control module;

when the dial switch is closed and/or the control module outputs a mode switching signal, the first switching switch circuit works in the first working mode to control the key feedback circuit to be conducted with the feedback module circuit;

when the dial switch is switched off and/or the control module does not output a mode switching signal, the first switch circuit works in the second working mode to control the key feedback circuit to be switched off from the feedback module circuit.

6. The elevator control circuit of claim 5, wherein the first switching switch circuit comprises:

the change-over switch is arranged between the key feedback circuit and the feedback module in series, and the mode change-over circuit is used for controlling the key feedback circuit to be conducted with the feedback module circuit when the change-over switch is closed;

the control end of the change-over switch driving circuit is connected with the controlled end of the change-over switch, the controlled end of the change-over switch driving circuit is connected with the output end of the dial switch, and/or the controlled end of the change-over switch driving circuit is connected with the control end of the control module;

the change-over switch driving circuit is used for controlling the change-over switch to be switched on when the change-over switch driving circuit works in a first working mode, and is used for controlling the change-over switch to be switched off when the change-over switch driving circuit works in a second working mode.

7. The elevator control circuit of claim 5, wherein the run module comprises:

the control end of the LED feedback circuit is connected with the controlled end of the feedback module, and the LED feedback circuit is used for outputting a key feedback signal to the feedback module when the LED feedback circuit is switched on;

the controlled end of the elevator control system is connected with the control end of the key module, the control end of the elevator control system is connected with the controlled end of the LED feedback circuit, and the elevator control system is used for controlling the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal and controlling the LED feedback circuit to work.

8. The elevator control circuit according to claim 7, wherein the feedback module comprises an optocoupler, a controlled end of the optocoupler is connected with the LED feedback circuit and the key module respectively, and the optocoupler is configured to be turned on when receiving a key feedback signal output by the key module and/or the LED feedback circuit, and output the key feedback signal to the control module.

9. The elevator control circuit according to claim 8, wherein the mode switching circuit further comprises a second switch circuit, a controlled terminal of the second switch circuit is connected with an output terminal of the dial switch, and/or a controlled terminal of the second switch circuit is connected with a control terminal of the control module, and a control terminal of the second switch circuit is connected with a ground terminal of the optocoupler;

when the dial switch is closed and/or the control module outputs a mode switching signal, the second switching switch circuit works in the first working mode to control the grounding end of the optical coupler to be conducted with the ground circuit;

when the dial switch is turned off and/or the control module does not output a mode switching signal, the second switch circuit works in the second working mode to control the grounding end of the optocoupler to be disconnected with the ground circuit.

10. The elevator control circuit according to any one of claims 1 to 9, wherein a plurality of the key 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 further connected in one-to-one correspondence with a plurality of the key modules.

Technical Field

The invention relates to the technical field of elevator control, in particular to an elevator control circuit.

Background

With the development of science and technology, the robot can replace manual service, the labor burden of people is reduced, and great convenience is brought to people. However, when the robot performs a cross-floor task, the robot takes a lot of time to successfully board the elevator, even resulting in a failed boarding.

Disclosure of Invention

The invention mainly aims to provide an elevator control circuit, aiming at improving the convenience and the practicability of an elevator control system so as to be beneficial to riding of a robot.

In order to achieve the above object, an elevator control circuit according to the present invention includes:

the control module is used for generating and outputting a corresponding control signal when receiving an externally input call triggering signal;

the controlled end of the key module is connected with the control end of the control module; the key module starts and outputs a key trigger signal and a key feedback signal when receiving the control signal;

the controlled end of the operation module is connected with the control end of the key module, and the operation module is used for controlling the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal and outputting a key feedback signal;

the feedback module is respectively connected with the operation module and the key module, the output end of the feedback module is also connected with the control module, and the feedback module is conducted 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.

Preferably, the key module includes:

the controlled end of the key trigger circuit is connected with the control end of the control module, the control end of the key trigger circuit is connected with the controlled end of the operation module, and the key trigger circuit outputs a key trigger signal when receiving the control signal so that the operation module controls the elevator to move to a position corresponding to the key trigger signal;

and the controlled end of the key feedback circuit is connected with the control end of the control module, the control end of the key feedback circuit is connected with the controlled end of the feedback module, and the key feedback circuit is used for outputting a key feedback signal to the feedback module.

Preferably, the key module further includes:

the controlled end of the relay driving circuit is connected with the control end of the control module, and the relay driving circuit is used for controlling the relay to work when receiving a control signal;

the double-pole double-throw relay comprises a double-pole double-throw relay, wherein a controlled end of the double-pole double-throw relay is connected with a control end of the relay driving circuit, one group of contacts of the double-pole double-throw relay is connected with the operation module, the other group of contacts of the double-pole double-throw relay is connected with the feedback module, and the double-pole double-throw relay is used for outputting a key trigger signal to the operation module and outputting a key feedback signal to the feedback module when the double-pole double-throw relay is closed.

Preferably, the key module further includes:

the mode switching circuit is arranged between the key feedback circuit and the feedback module in series, the mode switching circuit has a first working mode and a second working mode, and the mode switching circuit controls the key feedback circuit to be conducted with the feedback module circuit when working in the first working mode;

and when the mode switching circuit works in the second working mode, the key feedback circuit is controlled to be disconnected with the feedback module circuit.

Preferably, the mode switching circuit includes:

the input end of the dial switch is used for being connected with a power supply;

the first change-over switch circuit is arranged between the key feedback circuit and the feedback module in series, a controlled end of the first change-over switch circuit is connected with an output end of the dial switch, and/or a controlled end of the first change-over switch circuit is connected with a control end of the control module;

when the dial switch is closed and/or the control module outputs a mode switching signal, the first switching switch circuit works in the first working mode to control the key feedback circuit to be conducted with the feedback module circuit;

when the dial switch is switched off and/or the control module does not output a mode switching signal, the first switch circuit works in the second working mode to control the key feedback circuit to be switched off from the feedback module circuit.

Preferably, the first switching switch circuit includes:

the change-over switch is arranged between the key feedback circuit and the feedback module in series, and the mode change-over circuit is used for controlling the key feedback circuit to be conducted with the feedback module circuit when the change-over switch is closed;

the control end of the change-over switch driving circuit is connected with the controlled end of the change-over switch, the controlled end of the change-over switch driving circuit is connected with the output end of the dial switch, and/or the controlled end of the change-over switch driving circuit is connected with the control end of the control module;

the change-over switch driving circuit is used for controlling the change-over switch to be switched on when the change-over switch driving circuit works in a first working mode, and is used for controlling the change-over switch to be switched off when the change-over switch driving circuit works in a second working mode.

Preferably, the operation module includes:

the control end of the LED feedback circuit is connected with the controlled end of the feedback module, and the LED feedback circuit is used for outputting a key feedback signal to the feedback module when the LED feedback circuit is switched on;

the controlled end of the elevator control system is connected with the control end of the key module, the control end of the elevator control system is connected with the controlled end of the LED feedback circuit, and the elevator control system is used for controlling the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal and controlling the LED feedback circuit to work.

Preferably, the feedback module includes an optical coupler, a controlled end of the optical coupler is connected to the LED feedback circuit and the key module, and the optical coupler is configured to be turned on when receiving a key feedback signal output by the key module and/or the LED feedback circuit, and output the key feedback signal to the control module.

Preferably, the mode switching circuit further includes a second switch circuit, a controlled end of the second switch circuit is connected to the output end of the dial switch, and/or a controlled end of the second switch circuit is connected to the control end of the control module, and a control end of the second switch circuit is connected to the ground end of the optocoupler;

when the dial switch is closed and/or the control module outputs a mode switching signal, the second switching switch circuit works in the first working mode to control the grounding end of the optical coupler to be conducted with the ground circuit;

when the dial switch is turned off and/or the control module does not output a mode switching signal, the second switch circuit works in the second working mode to control the grounding end of the optocoupler to be disconnected with the ground circuit.

Preferably, the plurality of key modules are arranged between the control module and the operation module in series, the plurality of feedback modules are arranged between the control module and the operation module in series, and the plurality of feedback modules are further connected with the plurality of key modules in a one-to-one correspondence manner.

According to the technical scheme, the control module, the operation module, the key module and the feedback module are arranged, when the control module receives an externally input calling call trigger signal, a corresponding control signal is generated and output to the key module, so that the key module is controlled to start and output a key trigger signal and a key feedback signal, the operation module controls the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal, and the key feedback signal is output. The invention also sets a feedback module, is conducted when receiving the key feedback signal output by the key module and/or the operation module, and outputs the key feedback signal to the control module. According to the invention, the control module, the operation module, the key module and the feedback module are arranged, so that the closed-loop detection is realized for the key control of the elevator control system, and the convenience and the practicability of the elevator control system are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic diagram of the circuit modules of an embodiment of the elevator control circuit of the present invention;

fig. 2 is a schematic diagram of a circuit module of another embodiment of the elevator control circuit of the present invention;

fig. 3 is a schematic diagram of a circuit module of a further embodiment of the elevator control circuit of the present invention;

fig. 4 is a schematic diagram of a circuit module of yet another embodiment of the elevator control circuit of the present invention;

fig. 5 is a schematic circuit diagram of an embodiment of the elevator control circuit of the present invention;

fig. 6 is a schematic circuit diagram of another embodiment of the elevator control circuit of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Control module	LED2	Second light emitting diode
20	Key module	U1	First optical coupler
				30	Operating module	U2	Second optical coupler
40	Feedback module	M1	First field effect transistor
				50	Mode switching circuit	M2	Second field effect transistor
21	Key trigger circuit	Q1～Q3	First to third triodes
				22	Key feedback circuit	D1～D3	First to third diodes
23	Relay drive circuit	C1～C5	First to fifth capacitors
				24	Double-pole double-throw relay	V1～V5	First to fifth power input terminals
LED1	First light emitting diode	R1～R11	First to eleventh resistors R1 to R

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides an elevator control circuit.

Referring to fig. 1, in one embodiment, the elevator control circuit includes:

the control module 10 is used for generating and outputting a corresponding control signal when receiving an externally input call triggering signal;

the controlled end of the key module 20 is connected with the control end of the control module 10; the key module 20 starts and outputs a key trigger signal and a key feedback signal when receiving the control signal;

the controlled end of the operation module 30 is connected with the control end of the key module 20, and the operation module 30 is used for controlling the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal and outputting a key feedback signal;

the feedback module 40 is connected to the operation module 30 and the key module 20, an output end of the feedback module 40 is further connected to the control module 10, and the feedback module 40 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.

In this embodiment, the control module 10 may be configured with a control chip and a WIFI module to implement external wireless communication, and the control module 10 may also be configured with a bluetooth module, a voice recognition module, and the like to send a call triggering signal to the control module 10 through bluetooth or voice. The embodiment can be applied to the scene that the service robot needs to take the elevator, and the robot can automatically take the elevator through the cooperation with the elevator control circuit to execute the cross-floor task. When the robot needs to take the elevator, the robot can send a call triggering signal to the control module 10 through wireless communication and the like according to the floor to be moved to, after receiving the call triggering signal sent by the robot, the control module 10 can output a corresponding control signal to the corresponding key module 20 according to the call triggering signal, the control key module 20 is started, after the key module 20 is started, the key triggering signal is output to the operation module 30, so that the operation module 30 starts to work after receiving the key triggering signal, the elevator is controlled to move to the corresponding floor, meanwhile, the key module 20 and the operation module 30 can also output a key feedback signal to the feedback module 40, so that the feedback module 40 is conducted 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, the robot can determine the running state of the elevator through the key feedback signal. When the control module 10 cannot receive the key feedback signal due to the abnormal condition of the key operation, the robot can report the fault condition, or send the call triggering signal to the control module 10 again to control the elevator again, so that the robot can automatically take the elevator to go to a floor to be visited.

The elevator control circuit can use three signal feedback modes, the first mode is that the key module 20 outputs a key feedback signal, the key module 20 can set two paths of output signals, namely a key trigger signal and a key feedback signal, when the key module 20 receives a control signal output by the control module 10, the key trigger signal is output 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, meanwhile, the key feedback signal is output to the feedback module 40, so that the feedback module 40 is switched on when receiving the key feedback signal, and the key feedback signal is output to the control module 10, so that the control module 10 determines the response of the key module 20. Thus, the elevator key control can be closed-loop operation, and the control module 10 can know that the key module 20 has sent the action of the key trigger signal through the key feedback signal. It can be understood that, in the first signal feedback mode, when the key module 20 receives the control signal output by the control module 10, the key module outputs the key feedback signal and outputs the key feedback signal to the control module 10 through the feedback module 40, so that, during the production test, the elevator control circuit does not need to be connected to the elevator, and only after the control module 10 sends the control signal, the control module can normally receive the feedback signal output by the key module 20, and thus it can be known that the key module 20 and the feedback module 40 can normally work.

The second signal feedback mode is that the operation module 30 outputs a key feedback signal, the operation module 30 can be connected with the feedback module 40, when the operation module 30 receives a key trigger signal output by the key module 20, the operation module 30 controls the elevator to operate, and simultaneously 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; in addition, after the operation module 30 responds to the key module 20 and controls the elevator to operate, in the elevator with the key cancellation function, if the elevator key is cancelled by the user after the elevator starts to operate, the operation module 30 may control the elevator to stop executing the action corresponding to the key trigger signal, and the operation module 30 may stop outputting the key feedback signal to the control module 10 through the feedback module 40, and the control module 10 may determine the operation state of the elevator according to whether the key feedback signal is received, the duration of the key feedback signal, and the like.

The third signal feedback mode is a combination of the first two feedback modes, because the operation module 30 is controlled based on the key module 20, the response time of the operation module 30 may be slightly delayed from that of the key module 20, and in this embodiment, the operation module 30 and the key module 20 simultaneously output the key feedback signals to the control module 10, so that the control module 10 may receive the two key feedback signals successively, and the control module 10 may determine that the operation module 30 responds and controls the elevator to operate according to the number, duration, and the like of the received key feedback signals.

According to the elevator control system, the control module 10 is arranged, when the control module 10 receives an externally input call triggering signal, a corresponding control signal is generated and output to the key module 20, so that the key module 20 is controlled to start and output a key triggering signal and a key feedback signal, the operation module 30 controls the elevator to move to a position corresponding to the key triggering signal according to the key triggering signal, and the key feedback signal is output. The present invention further provides a feedback module 40, which 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 invention can carry out closed-loop detection on the control signal output by the control module 10, can enable the control module 10 to know the running state of the elevator in real time, and improves the stability of key control. Meanwhile, the invention is also provided with a plurality of signal feedback modes, and a user can complete the closed-loop detection of the key control by adopting different signal feedback modes in combination with practical application scenes, thereby not only meeting different requirements of the user, but also improving the accuracy of the closed-loop detection.

In some elevator accuse schemes, every elevator button all needs an operation interface, so, need more than ten button control interfaces at least, then dozens, butt joint dozens of tests access test fixture makes the efficiency of software testing low when production test, and whether elevator accuse succeeds in getting feedback to elevator button operation when using. However, the elevator is not required to be connected during production test, the first signal feedback mode can be directly selected for testing, and thus whether the key module 20 and the feedback module 40 can work normally can be judged by judging whether the control module 10 can receive the key feedback signal output by the key module 20, and complicated interface jig assembling and disassembling operations can be omitted during production test, so that the test efficiency of the invention is greatly improved.

Referring to fig. 2, in an embodiment, the key module 20 includes:

the controlled end of the key trigger circuit 21 is connected with the control end of the control module 10, the control end of the key trigger circuit 21 is connected with the controlled end of the operation module 30, and the key trigger circuit 21 outputs a key trigger signal when receiving the control signal, so that the operation module 30 controls the elevator to move to a position corresponding to the key trigger signal;

the controlled end of the key feedback circuit 22 is connected to the control end of the control module 10, 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 configured to output a key feedback signal to the feedback module 40.

In the present embodiment, the key triggering circuit 21 and the key feedback circuit 22 respectively generate a key triggering signal and a key feedback signal when receiving the control signal output by the control module 10. Specifically, when receiving the control signal output by the control module 10, the key trigger circuit 21 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. The key feedback circuit 22 outputs a key trigger signal to the feedback module 40 when receiving the control signal output by the control module 10, 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 operation state of the elevator. According to the elevator control system, the key trigger circuit 21 and the key feedback circuit 22 are arranged, so that the key module 20 can synchronously output the key trigger signal and the key feedback signal after receiving the control signal, the key feedback signal can be output to the feedback module 40 while the key trigger signal is output to control the elevator to move, the elevator key control becomes closed-loop operation, the control module 10 can know that the key module 20 sends the key trigger signal through the key feedback signal, and the stability of the key control is improved.

Referring to fig. 3, in an embodiment, the key module 20 further includes:

the controlled end of the relay driving circuit 23 is connected with the control end of the control module 10, and the relay driving circuit 23 is used for controlling the relay to work when receiving a control signal;

the double-pole double-throw relay 24 is characterized in that a controlled end of the double-pole double-throw relay 24 is connected with a control end of the relay driving circuit 23, one group of contacts of the double-pole double-throw relay 24 is connected with the operation module 30, the other group of contacts of the double-pole double-throw relay 24 is connected with the feedback module 40, and the double-pole double-throw relay 24 is used for outputting a key trigger signal to the operation module 30 and outputting a key feedback signal to the feedback module 40 when the double-pole double-throw relay is closed.

In this embodiment, the double-pole double-throw relay 24 may be a DPDT relay, and the DPDT relay has two sets of contacts, wherein one set of contact is connected with the operation module 30, and the other set of contact is connected with the feedback module 40, when the relay driving circuit 23 receives the control signal output by the control module 10, the relay driving circuit 23 may control the two sets of contacts of the relay to be closed simultaneously, and the one set of contact connected with the operation module 30 may output the key trigger signal to the operation module 30, thereby controlling the operation module 30 to operate and controlling the elevator to move to the position corresponding to the key trigger signal. The other set of contacts outputs a key triggering 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.

As shown in fig. 5 and 6, 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 triode Q2, a first fet M1, a first power input terminal V1, a second power input terminal V2, a third power input terminal V3, and a first optocoupler U1. When the control module 10 receives a call triggering signal sent by the robot, the control module 10 outputs a control signal to control the conduction of the second triode Q2, so that the power of the first power input end V1 is output to the grounding end of the second triode Q2 through the first optical coupler U1, thereby controlling the conduction of the first optical coupler U1 to enable the power of the second power input end V2 to be output to the grid of the first field-effect tube M1 through the first optical coupler U1, controlling the conduction of the first field-effect tube M1, and enabling the power of the third power input end V3 to supply power to the coil of the relay, so that the relay is powered and pulled in. In the embodiment, the contact 5 and the contact 6 are connected with the operation module 30, and when the relay is attracted, the contact 5 is communicated with the contact 6 to output a key triggering signal to the operation module 30; the contact 3 and the contact 4 are connected with the feedback module 40, and when the relay is closed, the contact 3 is communicated with the contact 4 to output a key feedback signal to the feedback module 40. In this embodiment, a first LED1 is serially connected between the contact 4 of the relay and the feedback module 40 as an indicator light, when the relay is attracted and outputs a key feedback signal to the feedback module 40, the first LED1 is turned on and emits light, so that, during production testing, the elevator control circuit does not need to be connected to the elevator, after the control module 10 sends a control signal, whether the feedback signal output by the key module 20 can be normally received according to the control module 10 or not, or whether the first LED1 can normally emit light or not is observed, whether the key module 20 and the feedback module 40 can normally operate or not can be known, and meanwhile, the first LED1 can also play a role in preventing backflow.

According to the elevator key control system, the relay drive circuit 23 and the double-pole double-throw relay 24 are arranged, so that the key trigger signal and the key feedback signal are synchronously output through two groups of contacts of the double-pole double-throw relay 24, the elevator key control can be closed-loop operation, the control module 10 can know that the key module 20 sends the key trigger signal through the key feedback signal, the stability of the key control is improved, meanwhile, the elevator does not need to be connected during production test, the key feedback signal can be output to the control module 10 through the double-pole double-throw relay 24 or not, so that whether the key module 20 and the feedback module 40 can normally work or not is judged, and thus, complicated interface jig assembling and disassembling operations can be omitted during production test, and the test efficiency of the elevator key control system is greatly improved; the invention also adopts the optical coupler to electrically isolate the elevator control part from the elevator control part, thereby reducing the signal crosstalk between circuits and improving the stability of key control.

Referring to fig. 4, in an embodiment, the elevator control circuit further includes:

a mode switching circuit 50, where the mode switching circuit 50 is serially connected between the key feedback circuit 22 and the feedback module 40, the mode switching circuit 50 has a first operating mode and a second operating mode, and when the mode switching circuit 50 operates in the first operating mode, the mode switching circuit controls the key feedback circuit 22 and the feedback module 40 to be electrically connected;

when the mode switching circuit 50 works in the second working mode, the key feedback circuit 22 is controlled to be disconnected from the feedback module 40.

In this embodiment, the mode switching circuit 50 is configured to control the signal feedback mode, the mode switching circuit 50 is serially connected between the key feedback circuit 22 and the feedback module 40, and 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 conducted; when the mode switching circuit 50 operates in the first operating mode, the circuit between the key feedback circuit 22 and the feedback module 40 is turned on, and the key feedback circuit 22 can output a 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;

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, the key feedback circuit 22 cannot send the key feedback signal to the feedback module 40, at this time, the operating module 30 may be connected to the feedback module 40, when the operating module 30 receives the key trigger signal output by the key module 20, the operating module 30 controls the elevator to operate, and simultaneously 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 both operating modes, the feedback module 40 can output a feedback signal to the control module 10, and in the first operating mode, the control module 10 can determine that the key module 20 responds by a key feedback signal; in a second operation mode, the control module 10 can determine that the operation module 30 responds and controls the elevator to operate through the key feedback signal; in addition, after the operation module 30 responds to the key module 20 and controls the elevator to operate, in the elevator with the key cancellation function, if the elevator key is cancelled by the user after the elevator starts to operate, the operation module 30 may control the elevator to stop executing the action corresponding to the key trigger signal, and the operation module 30 may stop outputting the key feedback signal to the control module 10 through the feedback module 40, and the control module 10 may determine the operation state of the elevator according to whether the key feedback signal is received, the duration of the key feedback signal, and the like. According to the invention, the mode switching circuit 50 is arranged to have two working modes, so that the application scene is more diversified, a user can complete closed-loop detection on key control in different signal feedback modes by combining with the actual application scene, different requirements of the user can be met, and the accuracy of closed-loop detection can be improved.

Referring to fig. 1 to 6, in an embodiment, the mode switching circuit 50 includes:

the input end of the dial switch is used for being connected with a power supply;

the first switch circuit is arranged between the key feedback circuit 22 and the feedback module 40 in series, a controlled end of the first switch circuit is connected with an output end of the dial switch, and/or a controlled end of the first switch circuit is connected with a control end of the control module 10;

when the dial switch is turned on 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 and the feedback module 40 to be electrically connected;

when the dial switch is turned off 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 electrically disconnected from the feedback module 40.

Further, the first switching switch circuit includes:

the switch is arranged between the key feedback circuit 22 and the feedback module 40 in series, and the mode switching circuit 50 is used for controlling the key feedback circuit 22 and the feedback module 40 to be electrically connected when the switch is closed;

a control end of the change-over switch driving circuit is connected with a controlled end of the change-over switch, the controlled end of the change-over switch driving circuit is connected with an output end of the dial switch, and/or the controlled end of the change-over switch driving circuit is connected with a control end of the control module 10;

the change-over switch driving circuit is used for controlling the change-over switch to be switched on when the change-over switch driving circuit works in a first working mode, and is used for controlling the change-over switch to be switched off when the change-over switch driving circuit works in a second working mode.

In the present embodiment, the switch is serially connected 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 operation mode, the switch driving circuit controls the switch to be turned on, so as to connect the key feedback circuit 22 with 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 operation 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, the key feedback circuit 22 cannot output the key feedback signal to the feedback module 40 through the path, and the operation module 30 outputs the key feedback signal to the feedback module 40 at this time.

It can be understood that, in the first operation mode, the switch driving circuit controls the switch to be turned on, so as to connect the key feedback circuit 22 and the feedback module 40, so that the operating module 30 can also output the key feedback signal to the feedback module 40 when the key feedback circuit 22 can output the key feedback signal to the feedback module 40 through the path. That is, in the first operation mode, the key feedback circuit 22 and the operation module 30 may output the key feedback signal to the feedback module 40 at the same time, so as to improve the reliability of the signal feedback.

As shown in fig. 5, the 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 switch is a second fet M2. The base electrode of the first triode Q1 can be connected with the control module 10, controlled by the control module 10, or connected with a power supply through a dial switch, controlled by the dial switch, or controlled by the control module 10 and the dial switch at the same time, when the dial switch is closed and the control module 10 outputs a certain voltage level, enough voltage can be provided to control the conduction of the first triode Q1; in the first operation mode, the first transistor Q1 is in a conducting state under the control of the dial switch or the control module 10, the power of the fourth power input terminal V4 is output to the ground through the first transistor, and at this time, the gate terminal voltage of the second fet M2 is pulled high to turn on the second fet M2, so as to connect 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 operation mode, the first transistor Q1 is in an off state under the control of the dial switch or the control module 10, the voltage at the gate terminal of the second fet M2 is zero, the second fet M2 is in an off state, and the key feedback circuit 22 cannot output the key feedback signal to the feedback module 40 through the second fet M2.

The invention realizes the switching of the signal feedback mode by arranging the first change-over switch circuit to control the on/off of the circuit between the key feedback circuit 22 and the feedback module 40, and simultaneously, the invention can also control whether the first change-over switch circuit is communicated with the key feedback circuit 22 and the feedback module 40 or not by different control modes, so that the application scene of the invention is more diversified, a user can complete the closed-loop detection of the key control by adopting different signal feedback modes in combination with the actual application scene, not only can meet different requirements of the user, but also can improve the accuracy of the closed-loop detection.

Referring to fig. 1-6, in one embodiment, the operation module 30 includes:

the control end of the LED feedback circuit is connected with the controlled end of the feedback module 40, and the LED feedback circuit is used for outputting a key feedback signal to the feedback module 40 when the LED feedback circuit is switched on;

and a controlled end of the elevator control system is connected with a control end of the key module 20, a control end of the elevator control system is connected with a controlled end of the LED feedback circuit, and the elevator control system is used for controlling the elevator to move to a position corresponding to the key trigger signal according to the key trigger signal and controlling the LED feedback circuit to work.

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 triggering signal, the elevator control system controls the elevator to operate and controls the LED feedback circuit to be turned 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 arranged, the LED feedback circuit is connected with the feedback module 40 through the connector, and the elevator control system is connected with the key trigger circuit 21 through the connector, so that when the elevator is installed, only the elevator circuit needs to be correspondingly connected into the connector.

According to the elevator control system, the LED feedback circuit and the elevator control system are arranged, so that the elevator control system controls the elevator to operate and controls the LED feedback circuit to work when receiving the key trigger signal, the LED feedback circuit outputs the key feedback signal to the feedback module 40, the feedback module 40 is conducted when receiving the key feedback signal, and the key feedback signal is output to the control module 10, and therefore the control module 10 determines that the operation module 30 responds and controls the elevator to operate. In addition, the invention can also correspondingly connect the key trigger circuit 21 and the feedback module 40 with the operation module 30 through the connector, so that when the invention is installed in an elevator, only the elevator circuit needs to be correspondingly connected into the connector, thus simplifying the installation or disassembly process of the invention and improving the convenience of products.

Referring to fig. 1 to 6, in an embodiment of the present invention, the feedback module 40 includes an optical coupler, a controlled end of the optical coupler is connected to the LED feedback circuit and the key module 20, respectively, and the optical coupler is configured to be turned on when receiving a key feedback signal output by the key module 20 and/or the LED feedback circuit, and output the key feedback signal to the control module 10.

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

when the dial switch is turned on and/or the control module 10 outputs a mode switching signal, the second switch circuit operates in the first operating mode to control the grounding end of the optocoupler to be conducted with the ground circuit;

when the dial switch is turned off and/or the control module 10 does not output the 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.

In this embodiment, the second switch circuit is connected to the ground terminal of the optocoupler to control whether the ground terminal of the optocoupler is connected to ground; the first switch circuit and the second switch circuit can control the on/off of the circuit between the key feedback circuit 22 and the feedback module 40 to realize the switching of the signal feedback mode; specifically, in a first working mode, the first switch circuit and the second switch circuit are turned on under the control of the dial switch or the control module 10, so as to communicate the key feedback circuit 22 with the feedback module 40, so that the key feedback circuit 22 can output a key feedback signal to the feedback module 40 through a path, and control the optical coupler to be turned on, so as to output the key feedback signal to the control module 10; in a second working mode, the first and second switch circuits are in an 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, the key feedback circuit 22 cannot output the key feedback signal to the feedback module 40 through the path, and at this time, the operation module 30 outputs the key feedback signal to the feedback module 40 and controls the optical coupler to be turned on, so as to output the key feedback signal to the control module 10.

As shown in fig. 5, 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 switch 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 a first working mode, the third triode Q3 is in a conducting state under the control of the dial switch or the control module 10, a key feedback signal output by the key feedback circuit 22 is output to the ground terminal of the third triode Q3 through the second optocoupler U2 to control the conduction of the second optocoupler U2, after the second optocoupler U2 is conducted, the power supply of the fifth power supply input terminal V5 is output to the control module 10 through the ninth resistor R9, that is, a key feedback signal is output, and the signal feedback work is completed; in a second working mode, the third transistor Q3 is in an off state under the control of the dial 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 operation module 30, and when the operation module 30 controls the second light emitting diode LED2 to be turned on and emit light, the voltage difference between the two ends of the second light emitting diode LED2 controls the second optocoupler U2 to be turned on, so that a key feedback signal is output, and the signal feedback work is completed.

The invention adopts the optical coupler to electrically isolate the elevator control part from the elevator control part, thereby reducing the signal crosstalk between circuits and improving the stability of key control feedback. The invention also controls the on/off of the circuit between the key feedback circuit 22 and the feedback module 40 by controlling the first change-over switch circuit and the second change-over switch circuit, thereby realizing the switching of the signal feedback mode, and simultaneously, the invention can also control whether the first change-over switch circuit and the second change-over switch circuit are communicated with the key feedback circuit 22 and the feedback module 40 by different control modes, so that the application scene of the invention is more diversified, a user can complete the closed-loop detection of the key control by adopting different signal feedback modes in combination with the actual application scene, and the accuracy of the closed-loop detection is improved.

Referring to fig. 1 to 6, in an embodiment of the present invention, a plurality of key modules 20 are serially connected between the control module 10 and the operation module 30, a plurality of feedback modules 40 are serially connected between the control module 10 and the operation module 30, and the plurality of feedback modules 40 are further connected with the plurality of key modules 20 in a one-to-one correspondence manner.

In this embodiment, a plurality of key modules 20 and feedback modules 40 are disposed between the control module 10 and the operation module 30, each of the key modules 20 and the feedback modules 40 corresponds to one elevator floor, the control module 10 can send a control signal to the corresponding key module 20 according to the call trigger signal, the key module 20 outputs a key trigger signal to the operation module 30 after receiving the control signal, the operation module 30 starts to operate after receiving the key trigger signal to control the elevator to go to the corresponding floor, and the plurality of feedback modules 40 are turned on when receiving the key feedback signal output by the key module 20 and/or the operation module 30 and output the key feedback signal to the control module 10;

according to the elevator control system, the plurality of key modules 20 are arranged, so that the control module 10 can output a plurality of control signals to the corresponding key modules 20, the plurality of key modules 20 are controlled to be started and to output key trigger signals and key feedback signals, the operation module 30 controls the elevator to move to positions corresponding to the plurality of key trigger signals according to the plurality of key trigger signals, and a plurality of key feedback signals are output. The present invention further provides a plurality of feedback modules 40, which are turned on when receiving a plurality of key feedback signals output by the key module 20 and/or the operating module 30, and output a plurality of key feedback signals to the control module 10. The invention can carry out closed-loop detection on a plurality of control signals output by the control module 10, can enable the control module 10 to know the running state of the elevator in real time, and improves the stability of key control.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.