Method and device for detecting a braking device in an elevator

Abstract

The application discloses a detection method and device of a brake device in an elevator. The brake device comprises an electrical brake device, the method comprises the following steps: identifying whether a detection condition of the electrical brake device is met at present; in response to the detection condition being met at present, controlling the elevator to enter a non-service state; obtaining a first detection flow of the electrical brake device, and controlling the elevator to start the first detection flow; obtaining first detection data corresponding to the first detection flow, wherein the first detection data at least comprises an electrical brake speed of the elevator; identifying that the electrical brake speed is greater than a first preset threshold value, and determining that a brake function of the electrical brake device is invalid. Therefore, the method can automatically detect the electrical brake device during the use of the elevator, can accurately judge the effectiveness of the electrical brake device according to the electrical brake speed, can save detection cost, can help improving the safety of the brake of the elevator, and can guarantee the personal safety of users.

Description

Technical Field

[0001] This invention relates to the field of elevator technology, and in particular to a method, apparatus, elevator, electronic equipment, and computer-readable storage medium for detecting braking devices in elevators. Background Technology

[0002] During elevator operation, braking devices may fail due to their own lifespan, harsh environmental conditions, or equipment aging, affecting the elevator's safety performance. For example, many technologies use contactors to short-circuit permanent magnet synchronous motors for electrical braking; however, contactor contacts may age, corrode, or oxidize, leading to braking failure and compromising elevator safety. Therefore, accurate testing of braking device effectiveness is crucial. Currently, testing methods for elevator braking devices are complex and costly. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the technical problems in the above-mentioned technologies.

[0004] Therefore, one objective of this invention is to provide a method for detecting braking devices in elevators, which can automatically detect electrical braking devices during elevator use and accurately determine the effectiveness of electrical braking devices based on the electrical braking speed. This method can save detection costs, help improve the safety of elevator braking, and protect the personal safety of users.

[0005] The second objective of this invention is to provide a detection device for braking equipment in an elevator.

[0006] The third objective of this invention is to provide an elevator.

[0007] The fourth objective of this invention is to provide an electronic device.

[0008] The fifth objective of this invention is to provide a computer-readable storage medium.

[0009] To achieve the above objectives, a first aspect of the present invention provides a method for detecting a braking device in an elevator, the braking device including an electrical braking device, the method comprising: identifying whether a detection condition of the electrical braking device is currently met; in response to the current satisfaction of the detection condition, controlling the elevator to enter a non-service state; acquiring a first detection process of the electrical braking device and controlling the elevator to start the first detection process; acquiring first detection data corresponding to the first detection process, the first detection data including at least the electrical braking speed of the elevator; identifying that the electrical braking speed is greater than a first preset threshold, and determining that the braking function of the electrical braking device has failed.

[0010] The elevator braking device detection method according to an embodiment of the present invention can identify whether the detection conditions of the electrical braking device are currently met. If the detection conditions are met, the elevator is controlled to enter a non-service state, and the elevator is controlled to initiate the first detection process of the electrical braking device. If the electrical braking speed is identified to be greater than a first preset threshold, the braking function of the electrical braking device is determined to be faulty. Therefore, this method can automatically detect the electrical braking device during elevator use and accurately determine the effectiveness of the electrical braking device based on the electrical braking speed. This saves detection costs, helps improve elevator braking safety, and protects the personal safety of users.

[0011] In addition, the elevator braking device detection method proposed in the above embodiments of the present invention may also have the following additional technical features:

[0012] In one embodiment of the present invention, the braking device further includes a mechanical braking device. After determining that the braking function of the electrical braking device has failed, the process includes: acquiring a second detection process of the mechanical braking device and controlling the elevator to start the second detection process; acquiring second detection data corresponding to the second detection process, wherein the second detection data includes at least the braking force of the mechanical braking device; identifying that the braking force is less than a second preset threshold, and determining that the braking function of the mechanical braking device has failed.

[0013] In one embodiment of the present invention, after determining that the braking function of the mechanical braking device has failed, the procedure includes: controlling the elevator to enter a stopped operation state.

[0014] In one embodiment of the present invention, the method further includes: identifying that the braking force is greater than or equal to the second preset threshold, and determining that the braking function of the mechanical braking device has not failed.

[0015] In one embodiment of the present invention, the method further includes: identifying that the electric braking speed is less than or equal to the first preset threshold, and determining that the braking function of the electric braking device has not failed.

[0016] In one embodiment of the present invention, after determining that the braking function of the braking device has not failed, the method further includes: controlling the elevator to end the detection process and enter the service state.

[0017] In one embodiment of the present invention, the detection conditions include at least one of the following: the current time reaches a preset target detection time; the duration during which the elevator has not received a service request is greater than or equal to a third preset threshold.

[0018] To achieve the above objectives, a second aspect of the present invention provides a detection device for a braking device in an elevator. The braking device includes an electric braking device. The device includes: an identification module for identifying whether the detection conditions of the electric braking device are currently met; a control module for controlling the elevator to enter a non-service state in response to the current satisfaction of the detection conditions; the control module is further configured to acquire a first detection process of the electric braking device and control the elevator to start the first detection process; an acquisition module for acquiring first detection data corresponding to the first detection process, the first detection data including at least the electric braking speed of the elevator; and a determination module for identifying that the electric braking speed is greater than a first preset threshold and determining that the braking function of the electric braking device has failed.

[0019] The elevator braking device detection apparatus of this invention can identify whether the detection conditions of the electrical braking device are currently met. When the detection conditions are met, the apparatus controls the elevator to enter a non-service state and initiates the first detection process of the electrical braking device. If the electrical braking speed is found to be greater than a first preset threshold, the braking function of the electrical braking device is determined to be faulty. Therefore, this device can automatically detect the electrical braking device during elevator use and accurately determine its effectiveness based on the electrical braking speed. This saves detection costs, helps improve elevator braking safety, and protects the personal safety of users.

[0020] In addition, the detection device for the braking device in an elevator according to the above embodiments of the present invention may also have the following additional technical features:

[0021] In one embodiment of the present invention, the braking device includes a mechanical braking device. After determining that the braking function of the electrical braking device has failed, the control module is further configured to: acquire a second detection process of the mechanical braking device and control the elevator to start the second detection process; the acquisition module is further configured to: acquire second detection data corresponding to the second detection process, the second detection data including at least the braking force of the mechanical braking device; the determination module is further configured to: identify that the braking force is less than a second preset threshold and determine that the braking function of the mechanical braking device has failed.

[0022] In one embodiment of the present invention, after determining that the braking function of the mechanical braking device has failed, the control module is further configured to: control the elevator to enter a stopped operation state.

[0023] In one embodiment of the present invention, the determining module is further configured to: identify that the braking force is greater than or equal to the second preset threshold, and determine that the braking function of the mechanical braking device has not failed.

[0024] In one embodiment of the present invention, the determining module is further configured to: identify that the electric braking speed is less than or equal to the first preset threshold, and determine that the braking function of the electric braking device has not failed.

[0025] In one embodiment of the present invention, after determining that the braking function of the braking device has not failed, the control module is further configured to: control the elevator to end the detection process and enter the service state.

[0026] In one embodiment of the present invention, the detection conditions include at least one of the following: the current time reaches a preset target detection time; the duration during which the elevator has not received a service request is greater than or equal to a third preset threshold.

[0027] To achieve the above objectives, a third aspect of the present invention provides an elevator, including a detection device for the braking device in the elevator as described in the second aspect of the present invention.

[0028] The elevator of this invention can identify whether the detection conditions of the electrical braking device are currently met. When the detection conditions are met, the elevator is controlled to enter a non-service state and the first detection process of the electrical braking device is initiated. If the electrical braking speed is found to be greater than a first preset threshold, the braking function of the electrical braking device is determined to be faulty. Therefore, the electrical braking device can be automatically detected during elevator use, and its effectiveness can be accurately determined based on the electrical braking speed. This saves detection costs, helps improve elevator braking safety, and protects the personal safety of users.

[0029] To achieve the above objectives, a fourth aspect of the present invention provides an electronic device, including a memory and a processor; wherein the processor reads executable program code stored in the memory to run a program corresponding to the executable program code, so as to implement the elevator braking device detection method described in the first aspect of the present invention.

[0030] The electronic device of this invention, through a processor executing a computer program stored in a memory, can identify whether the detection conditions of the electrical braking device are currently met. If the detection conditions are met, the device controls the elevator to enter a non-service state and initiates the first detection process of the electrical braking device. If the electrical braking speed is found to be greater than a first preset threshold, the device's braking function is determined to be faulty. Therefore, the electrical braking device can be automatically detected during elevator use, and its effectiveness can be accurately determined based on the braking speed. This saves detection costs, improves elevator braking safety, and protects user safety.

[0031] To achieve the above objectives, a fifth aspect of the present invention provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the elevator braking device detection method described in the first aspect of the present invention.

[0032] The computer-readable storage medium of this invention, by storing a computer program and having it executed by a processor, can identify whether the detection conditions of the electrical braking device are currently met. If the detection conditions are met, the elevator is controlled to enter a non-service state, and the first detection process of the electrical braking device is initiated. If the electrical braking speed is found to be greater than a first preset threshold, the braking function of the electrical braking device is determined to be faulty. Therefore, the electrical braking device can be automatically detected during elevator use, and its effectiveness can be accurately determined based on the electrical braking speed. This saves detection costs, helps improve elevator braking safety, and protects the personal safety of users.

[0033] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0034] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0035] Figure 1 A flowchart of a method for detecting a braking device in an elevator according to an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of elevator wiring according to an embodiment of the present invention;

[0037] Figure 3 A flowchart illustrating the process after determining the braking function failure of an electrical braking device in a detection method for braking devices in an elevator according to an embodiment of the present invention;

[0038] Figure 4 A flowchart illustrating a method for detecting a braking device in an elevator according to a specific example of the present invention;

[0039] Figure 5 This is a block diagram of a detection device for a braking device in an elevator according to an embodiment of the present invention;

[0040] Figure 6 A block diagram of an elevator according to an embodiment of the present invention; and

[0041] Figure 7 This is a block diagram of an electronic device according to an embodiment of the present invention. Detailed Implementation

[0042] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0043] The following description, in conjunction with the accompanying drawings, describes a method, apparatus, elevator, electronic device, and computer-readable storage medium for detecting braking devices in elevators according to embodiments of the present invention.

[0044] In embodiments of the present invention, the braking device in the elevator includes a mechanical braking device and an electrical braking device.

[0045] It is understandable that mechanical and electrical braking systems have different braking functions. Mechanical braking systems can bring an elevator to a complete stop, while electrical braking systems can move the elevator at a slower speed; that is, mechanical braking systems are more effective. When an elevator needs to be braked, the mechanical braking system is used first to achieve braking. When the mechanical braking system fails, the electrical braking system is used to achieve braking.

[0046] It should be noted that there are no excessive restrictions on the structure or type of mechanical braking devices and electrical braking devices. For example, the moving iron core of the electromagnet in a mechanical braking device can adopt a plunger-type structure, while an electrical braking device can be a permanent magnet synchronous motor.

[0047] Figure 1 This is a flowchart of a method for detecting a braking device in an elevator according to an embodiment of the present invention.

[0048] S101, identify whether the current detection conditions of the electric braking device are met.

[0049] In embodiments of the present invention, it is possible to identify whether the detection conditions of the electric braking device are currently met. It is understood that the detection conditions can be set according to actual circumstances, and no further limitations are imposed here.

[0050] In one implementation, the detection conditions include at least one of the following:

[0051] Condition 1: The current time reaches the preset target detection time.

[0052] In embodiments of the present invention, the target detection time can be preset according to actual conditions. For example, the target detection time can be set to 24:00, 1:00, etc. Furthermore, the current time can be obtained and compared with the target detection time. If the current time reaches the target detection time, it is identified that the detection conditions of the electric braking device are met.

[0053] In one implementation, the current time can be obtained using a timer within the elevator. For example, a timer can be installed within the elevator's electrical control unit.

[0054] Condition 2: The duration during which the elevator does not receive a service request is greater than or equal to the third preset threshold.

[0055] In embodiments of the present invention, the elevator can receive service requests. A service request refers to a user's request to ride the elevator. For example, a user can press elevator buttons such as "up," "down," "open," "close," or any floor to send a service request to the elevator. The elevator's electronic control device can detect whether any elevator button has been pressed; if any elevator button is detected to be pressed, it determines that a service request has been received.

[0056] In embodiments of the present invention, the duration during which the elevator has not received a service request can be obtained. If the duration is greater than or equal to a third preset threshold, it indicates that the duration during which the elevator has not received a service request is relatively long, meaning that no one is riding the elevator at this time, and the detection conditions of the electrical braking device can be identified.

[0057] The third preset threshold can be set according to the actual situation, and no further restrictions are imposed here. For example, the third preset threshold can be set to 1 minute.

[0058] S102, in response to the current fulfillment of the detection conditions, controls the elevator to enter a non-service state.

[0059] In embodiments of the present invention, the elevator can be controlled to enter a non-service state in response to the current fulfillment of detection conditions. It should be noted that when the elevator is in a non-service state, it will not respond to service requests. For example, if a user presses the "up" elevator button to send a service request to the elevator to move to the user's current floor when the elevator is in a non-service state, the elevator will not respond to the service request; that is, the elevator will remain stationary.

[0060] Understandably, this solution allows the elevator to enter a non-service state when the current testing conditions for the electrical braking equipment are met. This avoids situations where there are passengers in the elevator while the electrical braking equipment is being tested, thus helping to ensure the personal safety of users.

[0061] S103, obtain the first detection process of the electrical braking device, and control the elevator to start the first detection process.

[0062] In embodiments of the present invention, the first detection process of the electric braking device can be set according to the actual situation, without making too many limitations here, and the first detection process can be stored in the storage space of the elevator, for example, the first detection process can be stored in the storage space of the elevator's electrical control device.

[0063] In one implementation, the first detection process can be set as follows:

[0064] Step 1: Control the elevator to stop at its extreme position;

[0065] The extreme position refers to the position where the torque difference between the elevator car and the counterweight is the largest.

[0066] It is understandable that when the elevator stops at its extreme position, the corresponding electrical braking speed is the highest, and the detection effect of the electrical braking equipment is the best.

[0067] Step 2: Release the mechanical braking device;

[0068] Step 3: Control the drive equipment (such as traction motor, frequency converter, etc.) to be in a non-output state (no torque output).

[0069] Step 4: Detect the elevator's electrical braking speed.

[0070] Taking an empty elevator car as an example, the weight difference between the car and the counterweight will generate a downward torque. The car will move upward under the action of the downward torque. The electrical braking device (such as a permanent magnet synchronous motor) will generate an upward torque that hinders the upward movement of the car under the action of the downward torque. When the upward torque and the downward torque are balanced, the car will move upward at a slower speed.

[0071] For example, such as Figure 2 As shown, elevator 100 includes a main power supply 11, a main switch 12, a frequency converter 13, a main contactor 14, a sealing contactor 15, a permanent magnet synchronous motor 16, a brake 17, an encoder 18, a controller 19, a brake power supply 20, a brake contactor 21, and a sensor group 22. It should be noted that the brake 17 is a mechanical braking device, and the permanent magnet synchronous motor 16 is an electrical braking device.

[0072] The controller 19 includes a main contactor status monitoring module 191, a sealing contactor status monitoring module 192, a brake contactor status monitoring module 193, and a brake-holding status monitoring module 194. The controller 19 can monitor the holding status of the main contactor 11, the sealing contactor 15, the brake contactor 21, and the brake 17 through the main contactor status monitoring module 191, the sealing contactor status monitoring module 192, the brake contactor status monitoring module 193, and the brake-holding status monitoring module 194, respectively.

[0073] Figure 2 The corresponding first detection process can be set as follows:

[0074] Step 1: Control the elevator to stop at its extreme position;

[0075] Step 2: The controller 19 sends the brake command to the brake power supply 20. Based on the brake command, the brake contactor 21 is activated, so that the brake power supply 20 supplies power to the brake 17, thereby releasing the brake 17.

[0076] Step 3: Control the frequency converter 13 to be in a non-output state (no torque output), and disconnect the main contactor 14.

[0077] Step 4: Detect the elevator's electrical braking speed.

[0078] Optionally, detecting the electrical braking speed during elevator braking can include the following two possible implementation methods:

[0079] Method 1: Encoder 18 collects the elevator's speed signal and feeds the speed signal back to controller 19. Controller 19 obtains the electrical braking speed based on the speed signal.

[0080] Method 2: The speed sensor in sensor group 22 collects the speed of the car and feeds the car speed back to controller 19.

[0081] S104, Obtain the first detection data corresponding to the first detection process, the first detection data including at least the electric braking speed of the elevator.

[0082] In embodiments of the present invention, first detection data is generated during the first detection process. The first detection data includes at least the electric braking speed of the elevator. It is understood that the electric braking speed refers to the speed of the elevator car during the electric braking process.

[0083] In one implementation, the first detection data may include elevator operating data, such as the elevator's displacement during the electric braking process, the braking torque, braking force, torque current, etc. generated by the electric braking device.

[0084] In one implementation, the first detection data can be acquired using a sensor. This sensor may include displacement sensors, torque sensors, force sensors, current sensors, speed sensors, etc., without further limitation. For example, the speed of the car can be detected using a speed sensor to obtain the electric braking speed.

[0085] S105, if the electric braking speed is greater than the first preset threshold, determine that the braking function of the electric braking device has failed.

[0086] It should be noted that in the embodiments of the present invention, the first preset threshold is a critical value for determining the failure of the braking function of the electrical braking device. It can be set according to the actual situation, and no further limitations are imposed here. For example, it can be set to 0.3 m / s. If the electrical braking speed is greater than the first preset threshold, it indicates that the electrical braking speed is too fast, the safety of the elevator's electrical braking is low, and it can be determined that the braking function of the electrical braking device has failed.

[0087] In one implementation, after determining that the braking function of the electric braking device has failed, a notification message can be generated to promptly inform the user of the braking failure, allowing for timely repair or replacement of the electric braking device. The notification message may carry identification information about the elevator and the electric braking device. For example, the notification message can be sent to a server.

[0088] In summary, the elevator braking device detection method according to embodiments of the present invention can identify whether the detection conditions of the electrical braking device are currently met. When the detection conditions are met, the elevator is controlled to enter a non-service state, and the elevator is controlled to initiate the first detection process of the electrical braking device. If the electrical braking speed is identified to be greater than a first preset threshold, the braking function of the electrical braking device can be determined to be faulty. Therefore, this method can automatically detect the electrical braking device during elevator use and accurately determine the effectiveness of the electrical braking device based on the electrical braking speed. This saves detection costs, helps improve elevator braking safety, and protects the personal safety of users.

[0089] Based on any of the above embodiments, after obtaining the first detection data corresponding to the first detection process in step S104, it may include identifying that the electric braking speed is less than or equal to a first preset threshold, indicating that the electric braking speed is relatively slow at this time, the safety of the elevator electric braking is relatively high, and it can be determined that the braking function of the electric braking device has not failed.

[0090] In one implementation, after determining that the braking function of the electrical braking device has not failed, the elevator can be controlled to end the detection process and enter the service state. It should be noted that when the elevator enters the service state, it can respond to service requests. Therefore, this method can immediately end the detection process after determining that the braking function of the electrical braking device has not failed, allowing the elevator to provide service, ensuring the normal operation of the elevator, and meeting the user's needs.

[0091] Based on any of the above embodiments, such as Figure 3 As shown, after determining that the braking function of the electric braking device has failed in step S105, the following may be included:

[0092] S301, obtain the second detection process of the mechanical braking device, and control the elevator to start the second detection process.

[0093] In embodiments of the present invention, a second detection process for the mechanical braking device can be set according to actual conditions, without being overly limited here, and the second detection process can be stored in the elevator's storage space, for example, the second detection process can be stored in the storage space of the elevator's electronic control device.

[0094] In one implementation, before controlling the elevator to start the second detection process, the process may include controlling the elevator to exit the first detection process, thereby stopping the detection process of the electrical braking equipment.

[0095] For example, continue with Figure 2 For example, controlling the elevator to exit the first detection process may include the controller 19 sending a brake release command to the brake power supply 20, and disconnecting the brake contactor 21 based on the brake release command.

[0096] S302, Obtain the second detection data corresponding to the second detection process, the second detection data including at least the braking force of the mechanical braking device.

[0097] In embodiments of the present invention, second detection data is generated during the second detection process, and the second detection data includes at least the braking force of the mechanical braking device.

[0098] In one implementation, the second detection data may include elevator operating data, such as the elevator's displacement during mechanical braking, mechanical braking speed, and braking torque generated by the mechanical braking device. It is understood that mechanical braking speed refers to the speed of the elevator car during mechanical braking.

[0099] In one implementation, the second detection data can be acquired using sensors. These sensors may include displacement sensors, torque sensors, force sensors, speed sensors, etc., without further limitation. For example, the speed of the car can be detected using a speed sensor to obtain the mechanical braking speed, and the braking force can be detected using a force sensor.

[0100] S303, if the braking force is less than the second preset threshold, it is determined that the braking function of the mechanical braking device has failed.

[0101] It should be noted that in the embodiments of the present invention, the second preset threshold is a critical value for determining the failure of the braking function of the mechanical braking device, and can be set according to the actual situation. No further limitations are imposed here. If the braking force is less than the second preset threshold, it indicates that the braking force is relatively small, the safety of the elevator's mechanical braking is low, and the braking function of the mechanical braking device can be determined to have failed.

[0102] In one implementation, after determining that the mechanical braking device has failed, the elevator may be controlled to enter a stopped state. It should be noted that when the elevator enters the stopped state, it cannot respond to service requests. It is understood that at this time, both the electrical and mechanical braking devices have failed, resulting in lower elevator safety. Therefore, controlling the elevator to enter a stopped state prevents it from providing service and ensures the personal safety of users.

[0103] Optionally, before controlling the elevator to enter the stopped operation state, it may be possible to control the elevator to exit the second detection process, thereby stopping the detection process of the mechanical braking device.

[0104] In one implementation, after determining that the mechanical braking device has failed, a notification message can be generated to inform the user of the failure, allowing for timely repair or replacement of the mechanical braking device. The notification message may carry identification information about the elevator and the mechanical braking device. For example, the notification message can be sent to a server.

[0105] Therefore, this method can control the elevator to start the second detection process of the mechanical braking device after determining that the braking function of the electrical braking device has failed. If the braking force of the mechanical braking device is less than the second preset threshold, it can be determined that the braking function of the mechanical braking device has failed. That is, this method can automatically detect the mechanical braking device after determining that the braking function of the electrical braking device has failed, and accurately judge the effectiveness of the mechanical braking device based on the braking force, which helps to improve the safety of elevator braking and protect the personal safety of users.

[0106] Based on any of the above embodiments, after obtaining the second detection data corresponding to the second detection process in step S302, it may include identifying that the braking force is greater than or equal to the second preset threshold, indicating that the braking force is large at this time, the safety of the elevator mechanical braking is high, and it can be determined that the braking function of the mechanical braking device has not failed.

[0107] In one implementation, after determining that the mechanical braking device has not failed, the elevator can be controlled to end the detection process and enter service mode. It should be noted that the elevator can respond to service requests when it enters service mode. Therefore, this method can immediately end the detection process after determining that the mechanical braking device has not failed, allowing the elevator to provide service, ensuring normal elevator operation, and meeting user needs.

[0108] Based on any of the above embodiments, after obtaining the first detection data corresponding to the first detection process in step S104, it may include obtaining a reference speed of the electric braking speed, identifying that the electric braking speed is greater than the reference speed and less than or equal to a first preset threshold, and then determining that the electric braking device needs to be maintained.

[0109] The reference speed refers to the optimal speed for electrical braking. For example, during the elevator installation and commissioning phase, the electrical braking speed of the elevator car under empty and / or full load conditions can be tested and used as the reference speed.

[0110] It is understandable that if the identified electric braking speed is greater than the reference speed, it indicates that the braking performance of the electric braking device has declined. The electric braking device may have problems such as corrosion and aging with use, which means that the electric braking device needs maintenance. Timely maintenance of the electric braking device can help improve its braking performance and extend its service life.

[0111] To enable those skilled in the art to better understand the present invention, Figure 4 A flowchart illustrating a method for detecting a braking device in an elevator according to a specific example of the present invention is shown below. Figure 4 As shown, the detection method may include the following steps:

[0112] S401, identify whether the current detection conditions of the electric braking device are met.

[0113] S402, in response to the current fulfillment of detection conditions, controls the elevator to enter a non-service state.

[0114] S403, obtain the first detection process of the electrical braking equipment, and control the elevator to start the first detection process.

[0115] S404, Obtain the first detection data corresponding to the first detection process, the first detection data including at least the electric braking speed of the elevator.

[0116] S405, identify whether the electric braking speed is greater than the first preset threshold.

[0117] If yes, proceed to step S406; otherwise, proceed to step S413.

[0118] S406, indicating that the braking function of the electrical braking equipment has failed.

[0119] S407: Obtain the second detection process of the mechanical braking device and control the elevator to start the second detection process.

[0120] S408, Obtain the second detection data corresponding to the second detection process, the second detection data including at least the braking force of the mechanical braking device.

[0121] S409 identifies whether the braking force is less than the second preset threshold.

[0122] If yes, proceed to step S410; otherwise, proceed to step S412.

[0123] S410, indicating that the braking function of the mechanical braking device has failed.

[0124] S411 controls the elevator to enter a stopped state.

[0125] S412, confirming that the braking function of the mechanical braking device has not failed.

[0126] S413, confirming that the braking function of the electrical braking equipment has not failed.

[0127] S414 controls the elevator to end the inspection process and enter service mode.

[0128] For a detailed description of steps S401 to S414, please refer to the relevant content in the above embodiments, which will not be repeated here.

[0129] Figure 5 This is a block diagram of a detection device for a braking system in an elevator according to an embodiment of the present invention. The braking system includes an electric braking system.

[0130] like Figure 5 As shown, the detection device 200 for the braking device in an elevator according to an embodiment of the present invention includes: an identification module 21, a control module 22, an acquisition module 23, and a determination module 24.

[0131] The identification module 21 is used to identify whether the detection conditions of the electric braking device are currently met.

[0132] Control module 22 is used to control the elevator to enter a non-service state in response to the current fulfillment of the detection conditions;

[0133] The control module 22 is also used to acquire the first detection process of the electric braking device and control the elevator to start the first detection process;

[0134] The acquisition module 23 is used to acquire the first detection data corresponding to the first detection process, wherein the first detection data includes at least the electric braking speed of the elevator;

[0135] The determination module 24 is used to identify that the electric braking speed is greater than a first preset threshold and determine that the braking function of the electric braking device has failed.

[0136] In one embodiment of the present invention, the braking device further includes a mechanical braking device. After determining that the braking function of the electrical braking device has failed, the control module 22 is further configured to: acquire a second detection process of the mechanical braking device and control the elevator to start the second detection process; the acquisition module 23 is further configured to: acquire second detection data corresponding to the second detection process, the second detection data including at least the braking force of the mechanical braking device; the determination module 24 is further configured to: identify that the braking force is less than a second preset threshold and determine that the braking function of the mechanical braking device has failed.

[0137] In one embodiment of the present invention, after determining that the braking function of the mechanical braking device has failed, the control module 22 is further configured to: control the elevator to enter a stopped operation state.

[0138] In one embodiment of the present invention, the determining module 24 is further configured to: identify that the braking force is greater than or equal to the second preset threshold, and determine that the braking function of the mechanical braking device has not failed.

[0139] In one embodiment of the present invention, the determining module 24 is further configured to: identify that the electric braking speed is less than or equal to the first preset threshold, and determine that the braking function of the electric braking device has not failed.

[0140] In one embodiment of the present invention, after determining that the braking function of the braking device has not failed, the control module 22 is further configured to: control the elevator to end the detection process and enter the service state.

[0141] In one embodiment of the present invention, the detection conditions include at least one of the following: the current time reaches a preset target detection time; the duration during which the elevator has not received a service request is greater than or equal to a third preset threshold.

[0142] It should be noted that for details not disclosed in the detection device for the braking device in the elevator in the embodiments of the present invention, please refer to the details disclosed in the detection method for the braking device in the elevator in the above embodiments of the present invention, which will not be repeated here.

[0143] In summary, the elevator braking device detection device of this invention can identify whether the detection conditions of the electrical braking device are currently met. When the detection conditions are met, the device controls the elevator to enter a non-service state and initiates the first detection process of the electrical braking device. If the electrical braking speed is found to be greater than a first preset threshold, the device can be determined to have failed. Therefore, this device can automatically detect the electrical braking device during elevator use and accurately determine its effectiveness based on the braking speed. This saves detection costs, improves elevator braking safety, and protects user safety.

[0144] To achieve the above embodiments, the present invention also proposes an elevator 100, such as... Figure 6 As shown, the elevator 100 of this embodiment includes the detection device 200 for the braking device in the elevator described above.

[0145] The elevator of this invention can identify whether the detection conditions of the electrical braking device are currently met. When the detection conditions are met, the elevator is controlled to enter a non-service state and the first detection process of the electrical braking device is initiated. If the electrical braking speed is found to be greater than a first preset threshold, the braking function of the electrical braking device is determined to be faulty. Therefore, the electrical braking device can be automatically detected during elevator use, and its effectiveness can be accurately determined based on the electrical braking speed. This saves detection costs, helps improve elevator braking safety, and protects the personal safety of users.

[0146] To implement the above embodiments, the present invention also proposes an electronic device 300, such as... Figure 7 As shown, the electronic device 300 includes a memory 31 and a processor 32. The processor 32 reads executable program code stored in the memory 31 to run a program corresponding to the executable program code, so as to implement the above-mentioned detection method for the braking device in the elevator.

[0147] The electronic device of this invention, through a processor executing a computer program stored in a memory, can identify whether the detection conditions of the electrical braking device are currently met. If the detection conditions are met, the device controls the elevator to enter a non-service state and initiates the first detection process of the electrical braking device. If the electrical braking speed is found to be greater than a first preset threshold, the device's braking function is determined to be faulty. Therefore, the electrical braking device can be automatically detected during elevator use, and its effectiveness can be accurately determined based on the braking speed. This saves detection costs, improves elevator braking safety, and protects user safety.

[0148] To implement the above embodiments, the present invention also proposes a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for detecting braking devices in elevators.

[0149] The computer-readable storage medium of this invention, by storing a computer program and having it executed by a processor, can identify whether the detection conditions of the electrical braking device are currently met. If the detection conditions are met, the elevator is controlled to enter a non-service state, and the first detection process of the electrical braking device is initiated. If the electrical braking speed is found to be greater than a first preset threshold, the braking function of the electrical braking device is determined to be faulty. Therefore, the electrical braking device can be automatically detected during elevator use, and its effectiveness can be accurately determined based on the electrical braking speed. This saves detection costs, helps improve elevator braking safety, and protects the personal safety of users.

[0150] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0151] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0152] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0153] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0154] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0155] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for detecting braking devices in an elevator, characterized in that, The braking device includes an electric braking device, and the method includes: Identify whether the current detection conditions of the electrical braking device are met; In response to the current fulfillment of the detection conditions, the elevator is controlled to enter a non-service state; Obtain the first detection process of the electrical braking device, and control the elevator to start the first detection process; Obtain the first detection data corresponding to the first detection process. The first detection data includes at least the electric braking speed of the elevator. The first detection data also includes the displacement of the elevator during the electric braking process and the braking torque, braking force and torque current generated by the electric braking device. If the electric braking speed is found to be greater than a first preset threshold, it is determined that the braking function of the electric braking device has failed. The first detection process includes: controlling the elevator to stop at the extreme position; the control controller sending a brake command to the brake power supply, and based on the brake command, activating the brake contactor to supply power to the brake, thereby releasing the brake; controlling the frequency converter to be in a non-output state and disconnecting the main contactor; detecting the electric braking speed of the elevator, wherein the electric braking speed is the speed of the elevator car during the electric braking process; The braking device further includes a mechanical braking device. After determining that the braking function of the electrical braking device has failed, the process includes: acquiring a second detection process of the mechanical braking device and controlling the elevator to start the second detection process; acquiring second detection data corresponding to the second detection process, wherein the second detection data includes at least the braking force of the mechanical braking device; identifying that the braking force is less than a second preset threshold, and determining that the braking function of the mechanical braking device has failed. The second detection data also includes the elevator's displacement during the braking process, the mechanical braking speed, and the braking torque generated by the mechanical braking device, wherein the mechanical braking speed is the speed of the elevator car during the mechanical braking process.

2. The method according to claim 1, characterized in that, After determining that the braking function of the mechanical braking device has failed, the following steps are included: Control the elevator to enter a stopped state.

3. The method according to claim 1, characterized in that, The method further includes: If the braking force is greater than or equal to the second preset threshold, it is determined that the braking function of the mechanical braking device has not failed.

4. The method according to any one of claims 1-3, characterized in that, The method further includes: If the electric braking speed is less than or equal to the first preset threshold, it is determined that the braking function of the electric braking device has not failed.

5. The method according to claim 4, characterized in that, After determining that the braking function of the braking device has not failed, the method further includes: The elevator is controlled to end the testing process and enter service mode.

6. The method according to any one of claims 1-3, characterized in that, The detection conditions include at least one of the following: The preset target detection time has been reached at the current moment; The duration during which the elevator does not receive a service request is greater than or equal to a third preset threshold.

7. A detection device for braking equipment in an elevator, characterized in that, The braking device includes an electric braking device, and the device includes: The identification module is used to identify whether the detection conditions of the electric braking device are currently met. The control module is used to control the elevator to enter a non-service state in response to the current fulfillment of the detection conditions; The control module is further configured to acquire the first detection process of the electrical braking device and control the elevator to start the first detection process, wherein the first detection process includes: controlling the elevator to stop at the extreme position; controlling the controller to send a brake command to the brake power supply, and based on the brake command, engaging the brake contactor to supply power to the brake, thereby releasing the brake; controlling the frequency converter to be in a non-output state and disconnecting the main contactor; detecting the electric braking speed of the elevator, wherein the electric braking speed is the speed of the elevator car during the electric braking process; The acquisition module is used to acquire the first detection data corresponding to the first detection process. The first detection data includes at least the electric braking speed of the elevator, and also includes the displacement of the elevator during the electric braking process and the braking torque, braking force and torque current generated by the electric braking device. The determination module is used to identify that the electric braking speed is greater than a first preset threshold and determine that the braking function of the electric braking device has failed. The braking device further includes a mechanical braking device, and the detection device is further configured to: acquire a second detection process of the mechanical braking device and control the elevator to start the second detection process; acquire second detection data corresponding to the second detection process, the second detection data including at least the braking force of the mechanical braking device; identify that the braking force is less than a second preset threshold, and determine that the braking function of the mechanical braking device has failed, the second detection data including the elevator displacement, mechanical braking speed and braking torque generated by the mechanical braking device during the braking process, the mechanical braking speed being the speed of the elevator car during the mechanical braking process.

8. An elevator, characterized in that, include: The detection device for braking equipment in an elevator as described in claim 7.

9. An electronic device, characterized in that, Including memory and processor; The processor reads executable program code stored in the memory to run a program corresponding to the executable program code, so as to implement the detection method of the braking device in the elevator as described in any one of claims 1-6.

10. A computer-readable storage medium storing a computer program, characterized in that, When executed by the processor, the program implements the method for detecting the braking device in an elevator as described in any one of claims 1-6.

Images