Brake circuit detection method and device, computer device and storage medium

Abstract

The application relates to a brake circuit detection method and device, computer equipment and a storage medium. The method comprises the following steps: obtaining an elevator operation mode of a target elevator; in the case that the elevator operation mode is an electric mode, detecting power information of a brake circuit of the target elevator, and recording a fault frequency of the brake circuit according to the power information of the brake circuit; in the case that the fault frequency of the brake circuit is greater than a preset fault frequency threshold, closing a brake pipe in the brake circuit; in the case that the brake pipe is in a closed state and the brake circuit has power consumption, determining that the brake pipe in the brake circuit has a fault, and controlling the target elevator to keep a door-open standby state after stopping at a target floor. The method can detect and locate the fault of the brake circuit of the elevator in different operation modes according to the power information and resistance value information, and can control the elevator to slow down and stop after detecting the fault and notify maintenance personnel, so that the safety of the elevator operation is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of elevators, and in particular to a brake circuit detection method and device, a computer device, a storage medium, and a computer program product. BACKGROUND

[0002] In the field of elevator technology, the brake circuit plays an important role in ensuring the safe and stable operation of the elevator. Specifically, the elevator control system controls the brake circuit to be turned on, and the energy generated by the elevator during operation is dissipated through the brake resistance in the brake circuit, so as to achieve smooth operation and safe landing of the elevator. If the brake circuit of the elevator is abnormal, the safety of the elevator operation will be affected, and even a safety accident may occur.

[0003] In the traditional technology, the elevator contactor is arranged in front of the frequency converter. When the frequency converter fails, the main power supply can be automatically cut off to ensure the safety of the elevator operation.

[0004] However, in the current traditional method, when the brake circuit of the elevator is abnormal, the elevator control system cannot detect the brake circuit abnormality in time, which is not conducive to improving the safety of the elevator operation. SUMMARY

[0005] Therefore, it is necessary to provide a brake circuit detection method, device, computer device, computer readable storage medium, and computer program product capable of detecting brake circuit abnormality in time to solve the above technical problems.

[0006] In a first aspect, the present application provides a brake circuit detection method, which comprises:

[0007] obtaining an elevator operation mode of a target elevator;

[0008] in the case where the elevator operation mode is a motoring mode, detecting power information of a brake circuit of the target elevator, and recording a failure frequency of the brake circuit according to the power information of the brake circuit;

[0009] in the case where the failure frequency of the brake circuit is greater than a preset failure frequency threshold, closing a brake pipe in the brake circuit;

[0010] in the case where the brake pipe is in a closed state and there is power consumption in the brake circuit, determining that the brake pipe in the brake circuit has a failure, and controlling the target elevator to keep a door open standby state after stopping at a target floor.

[0011] In one of the embodiments, the recording of the failure frequency of the brake circuit according to the power information of the brake circuit comprises:

[0012] In a case where the power in the power information is greater than a preset power threshold, it is determined that the brake circuit has a fault phenomenon;

[0013] A number of times that the brake circuit has the fault phenomenon in a preset time interval is recorded to obtain a fault frequency of the brake circuit.

[0014] In one of the embodiments, after the step of obtaining the elevator operation mode of the target elevator, the method further comprises:

[0015] In a case where the elevator operation mode is a power generation mode, power information and resistance value information of a brake circuit of the target elevator are detected;

[0016] According to the power information and the resistance value information of the brake circuit, a fault frequency of the brake circuit is determined;

[0017] In a case where the fault frequency of the brake circuit is greater than a preset fault frequency threshold, it is determined that the resistance in the brake circuit has a fault, and the target elevator is controlled to reduce an operation speed.

[0018] In one of the embodiments, after the step of controlling the target elevator to reduce the operation speed, the method further comprises:

[0019] A number of times that the target elevator reduces the operation speed is recorded to obtain an elevator speed reduction frequency;

[0020] In a case where the elevator speed reduction frequency is greater than a preset speed reduction frequency threshold, it is determined that the resistance fault in the brake circuit is escalated, and the target elevator is controlled to keep a door open standby state after stopping at a target floor.

[0021] In one of the embodiments, the step of obtaining the elevator operation mode of the target elevator comprises:

[0022] A balance coefficient, an actual load, and a rated load of the target elevator are obtained;

[0023] A product of the rated load and the balance coefficient is obtained, and according to the product and the actual load, the elevator operation mode of the target elevator is determined.

[0024] In a case where the operation direction of the target elevator is upward, the step of determining the elevator operation mode of the target elevator according to the product and the actual load comprises:

[0025] The balance coefficient, the actual load, the rated load, and the operation direction of the target elevator are obtained;

[0026] In a case where the actual load is greater than the product, it is determined that the target elevator is in a power mode;

[0027] determining that the target elevator is in the power generation mode when the actual load is less than the product;

[0028] determining the elevator operation mode of the target elevator according to the product and the actual load includes:

[0029] determining that the target elevator is in the power generation mode when the actual load is less than the product;

[0030] determining that the target elevator is in the power generation mode when the actual load is less than the product.

[0031] In one of the embodiments, after closing the brake pipe in the brake circuit, further comprising:

[0032] detecting the bus voltage of the frequency converter in the brake circuit;

[0033] determining that the sampling control in the brake circuit has a fault and controlling the target elevator to keep the open door standby state after stopping at the target floor when the brake pipe is in the closed state and the bus voltage is greater than the opening voltage of the brake pipe.

[0034] In a second aspect, the present application further provides a brake circuit detection device, the device comprising:

[0035] an acquisition module for acquiring the elevator operation mode of a target elevator;

[0036] a detection module for detecting the power information of the brake circuit of the target elevator when the elevator operation mode is the power mode, and recording the fault frequency of the brake circuit according to the power information of the brake circuit;

[0037] an operation module for closing the brake pipe in the brake circuit when the fault frequency of the brake circuit is greater than a preset fault frequency threshold;

[0038] a control module for determining that the brake pipe in the brake circuit has a fault and controlling the target elevator to keep the open door standby state after stopping at the target floor when the brake pipe is in the closed state and the brake circuit has power consumption.

[0039] In a third aspect, the present application further provides a computer device, the computer device comprising a memory and a processor, the memory storing a computer program, and the computer program is executed by the processor to realize the steps of the above method.

[0040] In a fourth aspect, the present application provides a computer readable storage medium, having stored thereon a computer program, which, when executed by a processor, implements the steps of the method described above.

[0041] In a fifth aspect, the present application provides a computer program product, comprising a computer program, which, when executed by a processor, implements the steps of the method described above.

[0042] The brake circuit detection method, device, computer device, storage medium and computer program product described above, by acquiring the elevator operation mode of the target elevator, in the case of the elevator operation mode being the motoring mode, detecting the power information of the brake circuit of the target elevator, and recording the failure frequency of the brake circuit according to the power information of the brake circuit, in this way, by detecting the power information of the target elevator in the motoring mode, and determining the failure information of the brake circuit based on the power information, the failure of the brake circuit of the target elevator can be detected in time, in the case of the failure frequency of the brake circuit being greater than the preset failure frequency threshold, the brake pipe in the brake circuit is closed, in the case of the brake pipe being in the closed state and the brake circuit existing power consumption, it is determined that the brake pipe in the brake circuit exists a failure, so as to realize the positioning of the failure of the brake circuit of the target elevator, and the target elevator is controlled to keep the open door standby state after stopping at the target floor, and thus, after the brake circuit failure detection of the target elevator, the target elevator can be controlled to stop and wait, and the safety of the target elevator operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0043] For better describing and illustrating the embodiments and examples disclosed herein, one or more drawings can be referred to. Additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the disclosed inventions, the presently described embodiments and / or examples, and the best mode presently understood of these inventions.

[0044] Figure 1 An application environment diagram of a brake circuit detection method in an embodiment;

[0045] Figure 2 A flowchart of a brake circuit detection method in an embodiment;

[0046] Figure 3 A flowchart of a power failure detection in an embodiment;

[0047] Figure 4 A flowchart of a brake circuit detection method in another embodiment;

[0048] Figure 5 A flowchart of a speed reduction frequency detection in an embodiment;

[0049] Figure 6 A flowchart of a process for determining an elevator operation mode in an embodiment;

[0050] Figure 7 A flowchart of a process for determining an elevator operation mode in an embodiment;

[0051] Figure 8 A flowchart of a process for sampling control detection in an embodiment;

[0052] Figure 9 A block diagram of a structure of a brake circuit detection device in an embodiment;

[0053] Figure 10 An internal structure diagram of a computer device in an embodiment. DETAILED DESCRIPTION

[0054] In order to make the purposes, technical solutions and advantages of the present application clearer, further detailed description will be made to the present application in combination with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0055] The brake circuit detection method provided by the embodiments of the present application can be applied in an application environment as shown in Figure 1 . The electronic device 102 obtains an elevator operation mode of a target elevator; in a case where the elevator operation mode is a motoring mode, the electronic device 102 detects power information of a brake circuit of the target elevator, and records a failure frequency of the brake circuit according to the power information of the brake circuit; in a case where the failure frequency of the brake circuit is greater than a preset failure frequency threshold, the electronic device 102 closes a brake pipe in the brake circuit; in a case where the brake pipe is in a closed state and there is power consumption in the brake circuit, the electronic device 102 determines that there is a failure in the brake pipe in the brake circuit, and controls the target elevator to keep a door open standby state after stopping at a target floor. The electronic device 102 can be, but is not limited to, various personal computers, notebook computers, smart phones, tablet computers, Internet of Things devices and portable wearable devices.

[0056] In some embodiments, as shown in Figure 2 , a brake circuit detection method is provided. Taking the electronic device 102 in Figure 1 as an example, the method includes the following steps:

[0057] S210, obtaining an elevator operation mode of a target elevator.

[0058] The target elevator can refer to an elevator that needs to perform brake circuit fault detection. In specific implementation, the target elevator can include a passenger elevator and a cargo elevator.

[0059] The elevator operation mode can refer to an operation mode generated by the target elevator based on different working principles.

[0060] In specific implementation, the elevator operation mode can be divided into an electric mode and a power generation mode. The elevator operation is similar to the up-and-down movement of a lever, and there is energy conversion during operation. The electric mode can refer to a mode in which the elevator system consumes energy to operate the elevator, such as empty downward and full upward. In the electric mode, the elevator brake circuit does not generate power consumption. The power generation mode can refer to a mode in which the elevator system generates energy when the elevator is running, such as empty upward and full downward. In the power generation mode, the elevator brake circuit generates power consumption.

[0061] For example, the electronic device obtains the operation parameters of the target elevator during operation, and determines the operation mode of the target elevator according to the obtained operation parameters and the preset judgment standard.

[0062] S220, in the case where the elevator operation mode is the electric mode, detecting power information of a brake circuit of the target elevator, and recording a fault frequency of the brake circuit according to the power information of the brake circuit.

[0063] The brake circuit can refer to an elevator frequency converter brake circuit of the target elevator. In specific implementation, a Hall current sensor for detecting a brake circuit current signal can be configured in the elevator frequency converter brake circuit.

[0064] The power information can refer to a power consumption value of the brake circuit during operation of the target elevator. In specific implementation, the power consumption value of the brake circuit of the target elevator can be estimated according to the value of the current detected by the Hall current sensor and the value of the brake resistor in the brake circuit of the target elevator, through a preset calculation formula.

[0065] The fault frequency can refer to the number of times that the power information of the brake circuit of the target elevator does not meet a preset power threshold within a preset time interval, based on the power information, in the case where the elevator operation mode is the electric mode.

[0066] In specific implementation, in the case where the elevator operation mode is the electric mode and the brake circuit does not have a fault, if the power information of the brake circuit does not meet the preset power threshold in a certain detection, this detection is recorded as a fault state, and is recorded as one fault.

[0067] For example, in the case that the elevator operation mode is the motoring mode, the electronic device obtains current information in the brake circuit through the Hall current sensor, estimates power information of the brake circuit by using the current information and a value of a brake resistor of the brake circuit, and determines whether the brake circuit has a fault according to the power information, and records a fault frequency of the brake circuit.

[0068] S230, in the case that the fault frequency of the brake circuit is greater than a preset fault frequency threshold, closing a brake pipe in the brake circuit.

[0069] The fault frequency threshold can be a reference threshold for determining whether the number of times of faults of the brake circuit exceeds a preset parameter, and in a specific implementation, the fault frequency threshold can be adjusted by a maintenance personnel according to an actual situation.

[0070] The brake pipe can be a circuit element connected with the brake resistor and the frequency converter bus in the brake circuit, and in a specific implementation, the brake resistor is connected with the frequency converter bus through the brake pipe, and the brake pipe can control on-off of the brake circuit.

[0071] S240, in the case that the brake pipe is in the closed state and the brake circuit has power consumption, determining that the brake pipe in the brake circuit has a fault, and controlling the target elevator to keep a door open standby state after stopping at a target floor.

[0072] The target floor can be a floor where the elevator needs to stop when the elevator has a fault, and in a specific implementation, the target floor can be adjusted by a maintenance personnel based on an actual situation.

[0073] For example, in the case that the fault frequency of the brake circuit is greater than the preset fault frequency threshold, the electronic device closes the brake pipe through the elevator system, at this time, the brake circuit is blocked, in the case that the brake circuit of the elevator does not have a fault, the brake circuit does not have power consumption, if the brake circuit still has power consumption at this time, it indicates that the brake pipe has a fault, the electronic device controls the target elevator to keep a door open standby state after stopping at a target floor, and outputs fault maintenance information to a maintenance personnel, waits for the maintenance personnel to maintain, the maintenance personnel removes the fault and confirms, and the electronic device controls the elevator to resume normal operation.

[0074] The brake circuit detection method, device, computer device, storage medium and computer program product, by acquiring the elevator operation mode of the target elevator, in the case that the elevator operation mode is the electric mode, detecting the power information of the brake circuit of the target elevator, and recording the failure frequency of the brake circuit according to the power information of the brake circuit, thus, by detecting the power information of the target elevator in the electric mode, and determining the failure information of the brake circuit based on the power information, the failure of the brake circuit of the target elevator can be detected in time, in the case that the failure frequency of the brake circuit is greater than the preset failure frequency threshold, the brake pipe in the brake circuit is closed, in the case that the brake pipe is in the closed state and the brake circuit exists power consumption, it is determined that the brake pipe in the brake circuit exists failure, so that the failure of the brake circuit of the target elevator is located, and the target elevator is controlled to keep the door open in standby state after stopping at the target floor, and then, after the brake circuit failure of the target elevator is detected, the target elevator can be controlled to stop and wait, and the safety of the target elevator operation is improved.

[0075] In some embodiments, as shown in Figure 3 The recording of the failure frequency of the brake circuit according to the power information of the brake circuit includes:

[0076] In the case that the power in the power information is greater than the preset power threshold, it is determined that the brake circuit exists failure phenomenon.

[0077] The power threshold can be a reference threshold for judging whether the power in the power information exceeds a preset parameter, and in a specific implementation, the power threshold can be adjusted by a maintenance personnel based on actual conditions.

[0078] In the case that the power in the power information is greater than the preset power threshold, it is determined that the brake circuit exists failure phenomenon.

[0079] The preset time interval can be a reference time interval for obtaining the failure frequency of the brake circuit, and in a specific implementation, the preset time interval can be adjusted by a maintenance personnel based on actual conditions, and the preset time interval can include but is not limited to one day, one week, one month and one year.

[0080] For example, in the case that the power in the power information is greater than the preset power threshold, the electronic device determines that the brake circuit exists failure phenomenon, and records this detection as a failure phenomenon, records the number of times that the brake circuit exists failure phenomenon in the preset time interval, and according to the preset time interval and the number of failure phenomena, the electronic device obtains the failure frequency of the brake circuit based on a preset calculation method.

[0081] The technical scheme of the embodiment compares the power information with the preset power threshold value, detects the power fault of the brake circuit, records the fault times of the brake circuit, and further obtains the fault frequency, so that the fault of the brake circuit can be detected in time.

[0082] In some embodiments, as shown in Figure 4 The method further includes, after the step of obtaining the elevator operation mode of the target elevator:

[0083] S410, in the case where the elevator operation mode is the power generation mode, detecting power information and resistance value information of a brake circuit of the target elevator.

[0084] The resistance value information can refer to the resistance value of the brake circuit during the elevator operation.

[0085] S420, determining the fault frequency of the brake circuit according to the power information and the resistance value information of the brake circuit.

[0086] In the specific implementation, in the case where the elevator operation mode is the power generation mode, whether the brake circuit has a fault phenomenon is determined based on the size relationship between the resistance value information and a preset resistance value threshold.

[0087] For example, in the case where the elevator operation mode is the power generation mode, when the power information of the brake circuit detected by the electronic device is greater than the preset power threshold value, and the resistance value information of the brake circuit does not match or is multiplied by the preset resistance value threshold, the electronic device determines that the brake circuit has a fault phenomenon.

[0088] S430, in the case where the fault frequency of the brake circuit is greater than a preset fault frequency threshold, determining that the resistance in the brake circuit has a fault, and controlling the target elevator to reduce the operation speed.

[0089] For example, in the case where the fault frequency of the brake circuit is greater than the preset fault frequency threshold, the electronic device controls the target elevator to reduce the operation speed through the elevator system, and outputs fault maintenance information to the maintenance personnel, waits for the maintenance personnel to perform maintenance, the maintenance personnel removes the fault and confirms, and the electronic device controls the elevator to resume normal operation.

[0090] The technical scheme of the embodiment compares the power information and the preset power threshold value, and compares the resistance value information and the preset resistance value threshold, detects the resistance fault of the brake circuit, records the fault times of the brake circuit, and further obtains the fault frequency, so that the fault of the brake circuit can be detected in time, and the elevator is controlled to reduce the operation speed after the fault is detected, and the elevator operation safety is improved.

[0091] In some embodiments, as shown in Figure 5As shown, after the step of controlling the target elevator to reduce the running speed, the method further comprises:

[0092] S510, record the number of times that the target elevator reduces the running speed to obtain an elevator speed reduction frequency.

[0093] The elevator speed reduction frequency can refer to the number of times that the elevator reduces the running speed.

[0094] For example, in the case where the failure frequency of the brake circuit is greater than the preset failure frequency threshold, the electronic device determines that the resistance in the brake circuit has a failure, controls the target elevator to reduce the running speed, and records this operation as a speed reduction operation. The number of speed reduction operations in a preset time interval is recorded, and based on the preset time interval and the number of speed reduction operations, the electronic device obtains the elevator speed reduction frequency based on a preset calculation method.

[0095] S520, in the case where the elevator speed reduction frequency is greater than the preset speed reduction frequency threshold, determine that the resistance in the brake circuit has an escalated failure, and control the target elevator to remain in an open door standby state after stopping at a target floor.

[0096] The speed reduction frequency threshold can refer to a reference threshold for determining whether the number of elevator speed reduction operations exceeds a preset parameter. In specific implementations, the speed reduction frequency threshold can be adjusted by maintenance personnel according to actual conditions.

[0097] For example, in the case where the elevator speed reduction frequency of the target elevator is greater than the preset speed reduction frequency threshold, the electronic device controls the target elevator to remain in an open door standby state after stopping at a target floor, and outputs a failure repair information to the maintenance personnel. After the maintenance personnel repair and confirm that the failure is resolved, the electronic device controls the elevator to resume normal operation.

[0098] The technical solution of the embodiment records the elevator speed reduction frequency of the target elevator, further determines the failure degree of the brake circuit, can timely detect the brake circuit failure, and at the same time prompts the maintenance personnel to repair, thereby improving the safety of elevator operation.

[0099] In some embodiments, as shown, Figure 6 The target elevator running mode is obtained, comprising:

[0100] S610, obtain the balance coefficient, actual load, and rated load of the target elevator.

[0101] The balance coefficient can refer to a coefficient for representing the corresponding relationship between the actual load and the rated load in the ideal running state of the elevator. In specific implementations, the balance coefficient can include 0.4 and 0.5, and the balance coefficient can be adjusted by maintenance personnel based on actual conditions.

[0102] The actual load can refer to the weight actually borne by the elevator.

[0103] The rated load can refer to the weight that the elevator can bear within a rated range.

[0104] In specific implementation, the electronic device can acquire the actual load and the rated load of the target elevator through a sensor.

[0105] S620, a product of the rated load and the balance coefficient is acquired, and an elevator operation mode of the target elevator is determined according to the product and the actual load.

[0106] The technical scheme of the embodiment can determine the elevator operation mode of the target elevator by acquiring the balance coefficient, the actual load and the rated load of the target elevator, and can determine the elevator operation mode for fault detection of the braking circuit in different operation modes, thereby improving the accuracy of fault detection of the braking circuit.

[0107] In some embodiments, as shown in Figure 7 In a case where the operation direction of the target elevator is upward, the determination of the elevator operation mode of the target elevator according to the product and the actual load can include:

[0108] S710, a balance coefficient, an actual load, a rated load and an operation direction of the target elevator are acquired.

[0109] The operation direction can refer to the movement direction of the elevator during operation, and in specific implementation, the operation direction can be upward or downward.

[0110] S720, in a case where the actual load is greater than the product, it is determined that the target elevator is in a motoring mode.

[0111] In a case where the operation direction of the target elevator is upward, if the actual load of the target elevator is greater than the product of the rated load and the balance coefficient, the electronic device determines that the operation mode of the target elevator at this time is the motoring mode.

[0112] S730, in a case where the actual load is less than the product, it is determined that the target elevator is in a generating mode.

[0113] In a case where the operation direction of the target elevator is upward, if the actual load of the target elevator is less than the product of the rated load and the balance coefficient, the electronic device determines that the operation mode of the target elevator at this time is the generating mode.

[0114] S740, in the case that the running direction of the target elevator is downward, the determining the elevator running mode of the target elevator according to the product and the actual load includes: in the case that the actual load is greater than the product, determining that the target elevator is in the power generation mode.

[0115] In the specific implementation, in the case that the running direction of the target elevator is downward, if the actual load of the target elevator is greater than the product of the rated load and the balance coefficient, the electronic device determines that the running mode of the target elevator at this time is the power generation mode.

[0116] S750, in the case that the actual load is less than the product, determining that the target elevator is in the power mode.

[0117] In the specific implementation, in the case that the running direction of the target elevator is downward, if the actual load of the target elevator is less than the product of the rated load and the balance coefficient, the electronic device determines that the running mode of the target elevator at this time is the power mode.

[0118] The technical scheme of the embodiment determines the running mode of the target elevator by judging the relationship between the actual load of the target elevator and the product of the balance coefficient and the rated load in different running directions, determines the running mode for the fault detection of the brake circuit in different running modes, and improves the accuracy of the fault detection of the brake circuit.

[0119] In some embodiments, as shown in Figure 8 Further includes:

[0120] S810, detecting the bus voltage of the frequency converter in the brake circuit.

[0121] The bus voltage can refer to the voltage across the frequency converter after rectification of the frequency converter in the brake circuit.

[0122] S820, in the case that the brake pipe is in the closed state and the bus voltage is greater than the opening voltage of the brake pipe, determining that the sampling control in the brake circuit has a fault, and controlling the target elevator to keep the door open standby state after stopping at the target floor.

[0123] For example, in the case that the fault frequency of the brake circuit is greater than the preset fault frequency threshold, the electronic device closes the brake pipe through the elevator system, at this time the brake circuit is blocked, and the brake circuit does not exist power consumption in the case that the brake circuit does not exist fault, if the bus voltage of the frequency converter in the brake circuit is greater than the opening voltage of the brake pipe at this time, it indicates that the sampling control of the elevator system exists fault, the electronic device controls the target elevator to keep the door open standby state after stopping at the target floor, and outputs the fault maintenance information to the maintenance personnel, waits for the maintenance personnel to maintain, the maintenance personnel removes the fault and confirms, and the electronic device controls the elevator to resume normal operation.

[0124] The technical scheme of the embodiment can detect and locate the brake circuit fault accurately by detecting the bus voltage of the frequency converter in the brake circuit and comparing the bus voltage with the opening voltage of the brake pipe in the brake pipe closed state.

[0125] It should be understood that, although each step in the flowchart involved in each of the above-described embodiments is displayed in sequence according to the arrow, these steps are not necessarily executed in sequence according to the arrow. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other sequences. Moreover, at least part of the steps in the flowchart involved in each of the above-described embodiments can include multiple steps or stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of these steps or stages is not necessarily sequential, but can be executed in rotation or alternation with at least part of other steps or steps or stages in other steps.

[0126] Based on the same inventive concept, the embodiment of the present application also provides a brake circuit detection device for implementing the above-mentioned brake circuit detection method. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme described in the above method, so the specific limitations in one or more brake circuit detection device embodiments provided below can refer to the limitations of the brake circuit detection method described above, which will not be repeated here.

[0127] In one embodiment, as shown in Figure 9 a brake circuit detection device is provided, comprising:

[0128] The acquisition module 910 is configured to acquire an elevator operation mode of a target elevator.

[0129] The detection module 920 is configured to, in the case that the elevator operation mode is the motoring mode, detect power information of a brake circuit of the target elevator, and record a fault frequency of the brake circuit according to the power information of the brake circuit.

[0130] The operation module 930 is configured to close the brake pipe in the brake circuit when the failure frequency of the brake circuit is greater than a preset failure frequency threshold.

[0131] The control module 940 is configured to determine that the brake pipe in the brake circuit has a failure when the brake pipe is in the closed state and the brake circuit has power consumption, and control the target elevator to keep a door open standby state after stopping at a target floor.

[0132] In one of the embodiments, the detection module 920 is specifically configured to determine that the brake circuit has a failure phenomenon when the power in the power information is greater than a preset power threshold, record a number of times that the brake circuit has the failure phenomenon in a preset time interval, and obtain the failure frequency of the brake circuit.

[0133] In one of the embodiments, the device further includes a resistance value inspection module, which is specifically configured to detect power information and resistance value information of a brake circuit of the target elevator when the elevator operation mode is a power generation mode, determine the failure frequency of the brake circuit according to the power information and the resistance value information of the brake circuit, and determine that the resistance in the brake circuit has a failure and control the target elevator to reduce the operation speed when the failure frequency of the brake circuit is greater than a preset failure frequency threshold.

[0134] In one of the embodiments, the device further includes a speed reduction inspection module, which is specifically configured to record a number of times that the target elevator reduces the operation speed, obtain an elevator speed reduction frequency, and determine that the resistance failure in the brake circuit is escalated and control the target elevator to keep a door open standby state after stopping at a target floor when the elevator speed reduction frequency is greater than a preset speed reduction frequency threshold.

[0135] In one of the embodiments, the acquisition module 910 is specifically configured to acquire a balance coefficient, an actual load, and a rated load of the target elevator, acquire a product of the rated load and the balance coefficient, and determine the elevator operation mode of the target elevator according to the product and the actual load.

[0136] In one of the embodiments, the acquisition module 910 is specifically further configured to acquire the balance coefficient, the actual load, the rated load and the running direction of the target elevator; in the case that the running direction of the target elevator is upward; in the case that the actual load is greater than the product, determining that the target elevator is in the motoring mode; in the case that the actual load is less than the product, determining that the target elevator is in the generating mode; in the case that the running direction of the target elevator is downward; in the case that the actual load is greater than the product, determining that the target elevator is in the generating mode; in the case that the actual load is less than the product, determining that the target elevator is in the motoring mode.

[0137] In one of the embodiments, the device further comprises a sampling control checking module, which is specifically configured to detect the bus voltage of the frequency converter in the braking circuit; in the case that the braking pipe is in the closed state and the bus voltage is greater than the opening voltage of the braking pipe, determining that there is a fault in the sampling control of the braking circuit, and controlling the target elevator to keep the door open standby state after stopping at the target floor.

[0138] The modules in the braking circuit detection device can be realized by software, hardware or a combination thereof. The modules can be embedded in or independent of the processor in the computer device in hardware form, or stored in the memory in the computer device in software form, so as to be called and executed by the processor to perform the operations corresponding to the modules.

[0139] In one of the embodiments, a computer device is provided, which can be a terminal, and the internal structure diagram thereof can be as shown in Figure 10 The computer device comprises a processor, a memory, a communication interface, a display screen and an input device connected through a system bus. The processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operating system and the computer program in the non-volatile storage medium to run. The communication interface of the computer device is configured to perform wired or wireless communication with an external terminal. The wireless communication can be achieved through WIFI, mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by the processor to implement a braking circuit detection method. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen. The input device of the computer device can be a touch layer overlaid on the display screen, or a key, trackball or touchpad arranged on the shell of the computer device, or an external keyboard, touchpad or mouse, etc.

[0140] Those skilled in the art can understand that Figure 10The structure shown in the figure is only a block diagram of part of the structure related to the scheme of the present application, and does not constitute a limitation on the computer device to which the scheme of the present application is applied. The specific computer device can include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0141] In an embodiment, a computer device is also provided, including a memory and a processor, the memory storing a computer program, and the processor implementing the steps in the above method embodiments when executing the computer program.

[0142] In an embodiment, a computer readable storage medium is provided, storing a computer program, and the computer program implementing the steps in the above method embodiments when executed by a processor.

[0143] In an embodiment, a computer program product is provided, including a computer program, and the computer program implementing the steps in the above method embodiments when executed by a processor.

[0144] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data for analysis, stored data, displayed data, etc.) involved in the present application are all information and data authorized by the user or authorized by all parties.

[0145] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer readable storage medium, and when the computer program is executed, the processes of the above-mentioned embodiments of the methods can be included. Any reference to memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory, optical storage, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetoresistive random access memory (Magnetoresistive Random Access Memory, MRAM), ferroelectric memory (Ferroelectric Random Access Memory, FRAM), phase change memory (Phase Change Memory, PCM), graphene memory, etc. Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory, etc. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc. The database involved in the embodiments provided in the present application can include at least one of a relational database and a non-relational database. The non-relational database can include a distributed database based on a block chain, etc., without being limited thereto. The processor involved in the embodiments provided in the present application can be a general-purpose processor, a central processing unit, a graphics processing unit, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., without being limited thereto.

[0146] Any combination of the technical features of the above embodiments can be made. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0147] The above embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A brake circuit detection method characterized by, The method comprises: acquiring an elevator operation mode of a target elevator; in a case where the elevator operation mode is a motoring mode, detecting power information of a brake circuit of the target elevator, and recording a failure frequency of the brake circuit according to the power information of the brake circuit; in a case where the failure frequency of the brake circuit is greater than a preset failure frequency threshold, closing a brake pipe in the brake circuit; in a case where the brake pipe is in a closed state and there is power consumption in the brake circuit, determining that there is a failure in the brake pipe in the brake circuit, and controlling the target elevator to keep a door open in a standby state after stopping at a target floor; in a case where the brake pipe is in a closed state and there is no power consumption in the brake circuit, detecting a bus voltage of a frequency converter in the brake circuit; in a case where the bus voltage in the brake circuit is greater than an opening voltage of the brake pipe, determining that there is a failure in a sampling control in the brake circuit, and controlling the target elevator to keep the door open in the standby state after stopping at the target floor.

2. The method of claim 1, wherein, The recording of the failure frequency of the brake circuit according to the power information of the brake circuit comprises: in a case where power in the power information is greater than a preset power threshold, determining that there is a failure phenomenon in the brake circuit; recording a number of times that the brake circuit has the failure phenomenon in a preset time interval to obtain the failure frequency of the brake circuit.

3. The method of claim 1, wherein, After the step of acquiring the elevator operation mode of the target elevator, the method further comprises: in a case where the elevator operation mode is a power generation mode, detecting power information and resistance value information of the brake circuit of the target elevator; determining the failure frequency of the brake circuit according to the power information and the resistance value information of the brake circuit; in a case where the failure frequency of the brake circuit is greater than a preset failure frequency threshold, determining that there is a failure in a resistance in the brake circuit, and controlling the target elevator to reduce an operation speed.

4. The method of claim 3, wherein, After the step of controlling the target elevator to reduce the operation speed, the method further comprises: recording a number of times that the target elevator reduces the operation speed to obtain an elevator speed reduction frequency; in a case where the elevator speed reduction frequency is greater than a preset speed reduction frequency threshold, determining that the resistance failure in the brake circuit is escalated, and controlling the target elevator to keep the door open in the standby state after stopping at the target floor.

5. The method according to any one of claims 1 to 4, characterized in that, The acquisition of the elevator operation mode of the target elevator comprises: acquiring a balance coefficient, an actual load, and a rated load of the target elevator; acquiring a product of the rated load and the balance coefficient, and determining the elevator operation mode of the target elevator according to the product and the actual load.

6. The method of claim 5, wherein, In a case where an operation direction of the target elevator is upward, the determination of the elevator operation mode of the target elevator according to the product and the actual load comprises: acquiring the balance coefficient, the actual load, the rated load, and the operation direction of the target elevator; in a case where the actual load is greater than the product, determining that the target elevator is in a motoring mode; in a case where the actual load is less than the product, determining that the target elevator is in a power generation mode; In a case that the running direction of the target elevator is downward, the determining the elevator running mode of the target elevator according to the product and the actual load comprises: In a case that the actual load is greater than the product, it is determined that the target elevator is in a power generation mode; In a case that the actual load is less than the product, it is determined that the target elevator is in a power mode.

7. A brake circuit detection device characterized by comprising: The device comprises: an acquisition module, configured to acquire an elevator running mode of a target elevator; a detection module, configured to, in a case that the elevator running mode is a power mode, detect power information of a brake circuit of the target elevator, and record a failure frequency of the brake circuit according to the power information of the brake circuit; an operation module, configured to, in a case that the failure frequency of the brake circuit is greater than a preset failure frequency threshold, close a brake pipe in the brake circuit; a control module, configured to, in a case that the brake pipe is in a closed state and the brake circuit has power consumption, determine that the brake pipe in the brake circuit has a failure, and control the target elevator to keep a door open standby state after stopping at a target floor; a sampling control checking module, configured to, in a case that the brake pipe is in a closed state and the brake circuit has no power consumption, detect a bus voltage of a frequency converter in the brake circuit; in a case that the bus voltage in the brake circuit is greater than an opening voltage of the brake pipe, determine that a sampling control in the brake circuit has a failure, and control the target elevator to keep a door open standby state after stopping at a target floor. 8.A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer device is configured to perform the method according to any one of claims 1-7. The processor executes the computer program to realize the steps of the method in any one of claims 1 to 6.

9. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to realize the steps of the method in any one of claims 1 to 6.

10. A computer program product comprising a computer program, characterized in that, The computer program is executed by the processor to realize the steps of the method in any one of claims 1 to 6.

Images