Escalator operation control system, method, device and equipment and storage medium

Abstract

The invention relates to an escalator operation control system, method, device and equipment and a storage medium, and relates to the technical field of escalator control, and the escalator operation control system comprises an energy storage module which supplies power to an escalator when the state of commercial power is abnormal, and supplies power to a direct current bus when the bus voltage of the escalator is lower than a preset voltage threshold value; the energy storage control module is connected with the energy storage module and is used for acquiring the electric quantity state and the bus voltage of the energy storage module and controlling the energy storage module to charge or discharge according to the electric quantity state and the bus voltage; the power supply control module is connected with the energy storage module and used for monitoring the state of the mains supply and the electric quantity state of the energy storage module, and when the state of the mains supply is abnormal, the energy storage module is switched to supply power to the escalator; the escalator control module is connected with the power supply control module and the energy storage control module and used for controlling the running speed of the escalator when the energy storage module supplies power and the running speed of the escalator when the mains supply supplies power according to the electric quantity state and the state of the mains supply. The system can improve the safety.

Description

Technical Field

[0001] The present application relates to the technical field of escalator control, and in particular to an escalator operation control system and method, a control device, equipment and storage medium. Background Art

[0002] During the operation of the escalator, the escalator faces the problem of the stability of the power supply of the power grid. When the power supply for the escalator fails or the instantaneous voltage drops, the bus voltage of the escalator control system will be significantly affected, which may cause the elevator controller to fail, thereby triggering the safety protection device and causing the escalator to stop operating. This kind of escalator stoppage not only brings inconvenience to passengers, but also aggravates potential safety hazards. Especially during peak hours, the escalator stoppage may cause crowding or panic among passengers, thereby increasing the probability of secondary injury events. Therefore, the current escalator operation control method has the problem of low safety. Summary of the invention

[0003] Based on this, it is necessary to provide an escalator operation control system and its method, device, equipment and storage medium that can improve the operation safety of the escalator in response to the above technical problems.

[0004] An escalator operation control system, comprising:

[0005] An energy storage module, used for storing electric energy, and supplying power to the escalator when there is an abnormality in the state of the mains electricity, and supplying power to the DC bus when the bus voltage of the DC bus of the escalator is lower than a preset voltage threshold;

[0006] an energy storage control module, connected to the energy storage module, for obtaining the power state of the energy storage module and the bus voltage of the escalator, and controlling the energy storage module to perform a charging operation or a discharging operation according to the power state and the bus voltage;

[0007] a power control module connected to the energy storage module, and used to monitor the state of the mains power supplying the escalator and the power state of the energy storage module, and switch to the energy storage module to supply power to the escalator when there is an abnormality in the state of the mains power;

[0008] The escalator control module is connected to the power control module and the energy storage control module respectively, and is used to receive the power status sent by the energy storage control module and the status of the mains power sent by the power control module, and control the running speed of the escalator when powered by the energy storage module and the running speed when powered by the mains power according to the power status and the status of the mains power.

[0009] In one embodiment, there are at least two escalators, and at least two of the escalators have different running directions. When any target escalator among all the escalators runs downward, the potential energy of the target escalator is converted into electrical energy to charge the energy storage module.

[0010] In one embodiment, each escalator corresponds to one power control module and one escalator control module, and at least two escalators correspond to one energy storage control module and one energy storage module.

[0011] In one embodiment, the energy storage module comprises:

[0012] Batteries;

[0013] a DC-DC converter, the DC-DC converter being connected to the battery and the DC bus of the escalator respectively, the DC-DC converter being used to charge the battery, and when the bus voltage is lower than the preset voltage threshold, the battery supplies power to the DC bus through the DC-DC converter;

[0014] A DC-AC converter is connected to the power control module and the battery respectively. When the state of the mains electricity is abnormal, the battery supplies power to the escalator through the DC-AC converter.

[0015] In one embodiment, the energy storage control module includes:

[0016] A connecting unit, the connecting unit is connected to the DC bus, and the connecting unit is used to obtain the bus voltage;

[0017] A control unit, wherein the control unit is connected to the connection unit and the energy storage module respectively, and the control unit is used to control the energy storage module to discharge to the DC bus through the DC-DC converter when the bus voltage is lower than the preset voltage threshold; control the energy storage module to stop discharging to the bus voltage when the power state is less than a preset minimum power; and control the energy storage module to charge through the DC-DC converter when the power state is less than a preset maximum power; the preset minimum power is the minimum power consumed to meet the escalator's deceleration until it stops.

[0018] An escalator operation control method is applied to an escalator control module of the escalator operation control system described in any one of the above embodiments, and the method comprises:

[0019] Obtaining the state of the mains power for the escalator collected by the power control module and the power state of the energy storage module sent by the energy storage control module;

[0020] According to the state of the mains power and the power state of the energy storage module, an operation strategy of the mains power supplying the escalator and an operation strategy of the energy storage module supplying the escalator are determined respectively; the energy storage module is used to be controlled by the power control module to supply power to the escalator when there is an abnormality in the state of the mains power;

[0021] According to the operation strategy, the operation speed of the escalator is determined.

[0022] In one embodiment, the operation strategy of using the mains to power the escalator and the operation strategy of using the energy storage module to power the escalator are determined according to the state of the mains and the power state of the energy storage module, respectively, including:

[0023] When the state of the mains power is normal power supply and the energy storage module is not powered, determining that the operation strategy of the escalator is to run at a preset normal speed;

[0024] When the state of the mains power is abnormal and the escalator is switched to be powered by the energy storage module, the deceleration of the escalator is determined according to the power state, and the escalator is controlled to decelerate based on the deceleration until it stops.

[0025] An escalator operation control device is applied to an escalator control module of the escalator operation control system described in any one of the above embodiments, comprising:

[0026] The power acquisition module is used to obtain the state of the mains power for the escalator collected by the power control module and the power state of the energy storage module;

[0027] A strategy determination module, for determining, according to the state of the mains power and the power state of the energy storage module, an operation strategy for the mains power to supply power to the escalator and an operation strategy for the energy storage module to supply power to the escalator; the energy storage module is used to be controlled by the power control module to supply power to the escalator when there is an abnormality in the state of the mains power;

[0028] The escalator control module is used to determine the running speed of the escalator according to the running strategy.

[0029] A computer device comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0030] Obtaining the state of the mains power for the escalator collected by the power control module and the power state of the energy storage module sent by the energy storage control module;

[0031] According to the state of the mains power and the power state of the energy storage module, an operation strategy of the mains power supplying the escalator and an operation strategy of the energy storage module supplying the escalator are determined respectively; the energy storage module is used to be controlled by the power control module to supply power to the escalator when there is an abnormality in the state of the mains power;

[0032] According to the operation strategy, the operation speed of the escalator is determined.

[0033] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the following steps:

[0034] Obtaining the state of the mains power for the escalator collected by the power control module and the power state of the energy storage module sent by the energy storage control module;

[0035] According to the state of the mains power and the power state of the energy storage module, an operation strategy of the mains power supplying the escalator and an operation strategy of the energy storage module supplying the escalator are determined respectively; the energy storage module is used to be controlled by the power control module to supply power to the escalator when there is an abnormality in the state of the mains power;

[0036] According to the operation strategy, the operation speed of the escalator is determined.

[0037] The above-mentioned escalator operation control system and method, control device, equipment and storage medium, the system includes an energy storage module, an energy storage control module, a power control module and an escalator control module. Among them, the energy storage module is used to store electric energy, and to supply power to the escalator when there is an abnormality in the state of the mains power, and to supply power to the DC bus when the bus voltage of the DC bus of the escalator is lower than the preset voltage threshold. As a backup power supply for the escalator, it can supply power to the escalator when the mains power is abnormal, and can maintain the bus voltage within a normal range when the bus voltage fluctuates, further ensuring the safety of the escalator; the energy storage control module is connected to the energy storage module, and is used to obtain the power status of the energy storage module and the bus voltage of the escalator, and control the energy storage module to perform charging or discharging operations according to the power status and the bus voltage, so as to maintain the power of the energy storage module in a state that can provide timely working guarantee for the escalator, thereby further improving the safety of the escalator; the power control module is connected to the energy storage module, and is used to monitor the power supply to the escalator. The escalator control module monitors the power supply of the escalator and can respond to abnormal power supply of the escalator in time; the escalator control module, the power control module and the energy storage control module are connected respectively, for receiving the power status sent by the energy storage control module and the state of the mains power sent by the power control module, and controlling the running speed of the escalator when powered by the energy storage module and the running speed when powered by the mains according to the power status and the state of the mains power. The escalator control module can control the running speed of the escalator according to different power supply conditions, and determine the most suitable escalator running speed on the premise that the power supply can be met, to avoid accidents, thereby improving the safety of escalator operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 It is a structural schematic diagram of an escalator operation control system in one embodiment;

[0040] Figure 2 It is a structural schematic diagram of an escalator operation control system in another embodiment;

[0041] Figure 3 A schematic diagram of a flow chart of an escalator operation control method in one embodiment;

[0042] Figure 4 is a structural schematic diagram of an escalator operation control device in one embodiment;

[0043] Figure 5 A schematic diagram of the specific structure of an escalator and an escalator operation control device in one embodiment;

[0044] Figure 6 is a structural block diagram of an escalator operation control device in another embodiment;

[0045] Figure 7 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0046] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0048] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. In addition, the "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if there is transmission of electrical signals or data between the connected objects.

[0049] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0050] In one embodiment, Figure 1 As shown, an escalator operation control system is provided, comprising:

[0051] Energy storage module 101 , energy storage control module 102 , power supply control module 103 and escalator control module 104 .

[0052] The energy storage module 101 is used to store electric energy, and to supply power to the escalator when the state of the mains electricity is abnormal, and to supply power to the DC bus when the bus voltage of the DC bus of the escalator is lower than a preset voltage threshold; the energy storage control module 102 is connected to the energy storage module 101, and is used to obtain the power state of the energy storage module 101 and the bus voltage of the escalator, and to control the energy storage module 101 to perform charging or discharging operations according to the power state and the bus voltage; the power supply control module 103 is connected to the energy storage module 101, and is used to monitor the escalator. The state of the AC power supply and the power state of the energy storage module 101. When there is an abnormality in the state of the AC power, switch to the energy storage module 101 to power the escalator; the escalator control module 104, the power control module 103 and the energy storage control module 102 are connected respectively, for receiving the power state sent by the energy storage control module 102 and the state of the AC power sent by the power control module 103, and control the running speed of the escalator when powered by the energy storage module 101 and the running speed when powered by the AC power according to the power state and the state of the AC power.

[0053] It should be noted that in daily operation, the escalator is mainly powered by the mains electricity, which can be industrial frequency alternating current. When there is no abnormality in the state of the mains electricity, it can meet the daily operation of the escalator. However, when there is an abnormality in the state of the mains electricity, the abnormal state includes but is not limited to power outages, momentary interruptions and temporary drops. The abnormal state of the mains electricity will cause the bus voltage of the escalator to drop significantly, which will cause the escalator to stop operating due to a fault, and may even cause secondary passenger injuries. It can also be seen that when the power control module 103 switches to the energy storage module 101 for power supply, the energy storage module 101 will also increase the bus voltage of the escalator to maintain the normal operation of the escalator.

[0054] It is understandable that the energy storage module 101 and the power control module 103 are set so that when there is an abnormality in the state of the mains power, the power control module 103 can switch the power supply of the escalator from the mains power to the energy storage module 101 for power supply, thereby ensuring the normal operation of the escalator and avoiding escalator failures caused by abnormal mains power. In addition, the escalator operation control module may include a control unit, a speed regulating unit, a controllable switch, and a drive unit, and each unit is linearly connected. The control unit is used to receive the state of the mains power sent by the power control module 103 and the power state sent by the energy storage control module 102, and generate a control instruction. The speed regulating unit adjusts the running speed of the escalator in response to the control instruction of the control unit, the controllable switch can control the start and stop of the escalator, and the drive unit is used to drive the escalator to run.

[0055] In the above-mentioned escalator operation control system, the system includes an energy storage module 101, an energy storage control module 102, a power control module 103 and an escalator control module 104. Among them, the energy storage module 101 is used to store electric energy, and to supply power to the escalator when there is an abnormality in the state of the mains power, and to supply power to the DC bus when the bus voltage of the DC bus of the escalator is lower than the preset voltage threshold. As a backup power supply for the escalator, the mains power can supply power to the escalator when it is abnormal, and the bus voltage can be maintained within a normal range when the bus voltage fluctuates, further ensuring the safety of the escalator; the energy storage control module 102 is connected to the energy storage module 101, and is used to obtain the power state of the energy storage module 101 and the bus voltage of the escalator, and control the energy storage module 101 to perform charging or discharging operations according to the power state and the bus voltage, so as to maintain the power of the energy storage module 101 in a state that can provide timely working guarantee for the escalator, thereby further improving the safety of the escalator; the power control module 103 is connected to the energy storage module 101 respectively, and is used to monitor the mains power supply for the escalator. The escalator control module 104 is connected to the power control module 103 and the energy storage control module 102 respectively, and is used to receive the state of the mains power sent by the power control module 103 and the state of charge sent by the energy storage control module 102, and control the running speed of the escalator when powered by the energy storage module 101 and the running speed when powered by the mains power according to the state of charge and the state of the mains power. The escalator control module 104 can control the running speed of the escalator according to different power supply conditions, and determine the most suitable running speed of the escalator on the premise that the power supply can be met, so as to avoid accidents and improve the safety of the escalator operation.

[0056] In one embodiment, Figure 2 As shown, the energy storage module 101 includes:

[0057] A battery 1011 , a DC-DC converter 1012 and a DC-AC converter 1013 .

[0058] Among them, the DC-DC converter 1012 is connected to the battery 1011 and the DC bus of the escalator respectively, the DC-DC converter 1012 is used to charge the battery 1011, and when the bus voltage is lower than a preset voltage threshold, the battery 1011 supplies power to the DC bus through the DC-DC converter 1012; the DC-AC converter 1013 is connected to the power control module 103 and the battery 1011 respectively, when there is an abnormality in the state of the mains power, the battery 1011 supplies power to the escalator through the DC-AC converter 1013.

[0059] Among them, the DC-DC conversion module can be a DC-DC (Direct Current-Direct Current) conversion module, which is used to convert one DC voltage into another DC voltage; wherein the DC-AC conversion module can be a DC-AC (Direct Current-Alternating Current) conversion module, which is used to convert a DC voltage into an AC voltage, usually outputting a sine wave or a square wave.

[0060] It is understandable that the battery 1011 is used to store electrical energy, and the state of charge stored in the battery 1011 is the state of charge of the energy storage module 101. The preset voltage threshold may be the lowest bus voltage that can support the normal operation of the escalator. In the case of multiple escalators, the precondition for the battery 1011 to discharge to the DC bus through the DC-DC converter 1012 is that the bus voltage difference between the escalators needs to be within a preset range. If the bus voltage difference exceeds the preset range, it indicates that the escalator may have a fault and needs to be repaired, and the energy storage module 101 cannot be connected to the DC bus, which further improves the safety of the escalator operation.

[0061] It should be noted that there are at least two escalators, and at least two escalators have different running directions, and the escalators can be arranged in parallel or adjacent positions. In the case where there is any target escalator among all the escalators whose running direction is from top to bottom, the potential energy of the target escalator running downward can be converted into electrical energy to charge the battery 1011 of the energy storage module 101, thereby realizing energy conversion and utilization and reducing energy waste. In addition, the correspondence between the at least two escalators and the internal modules of the escalator operation control device is: each escalator corresponds to a power control module 103 and an escalator control module 104, and at least two escalators correspond to an energy storage control module 102 and an energy storage module 101.

[0062] In one embodiment, continue to refer to Figure 2 , the energy storage control module 102 includes:

[0063] The connection unit 1021 and the control unit 1022 .

[0064] Wherein, the connection unit 1021 is connected to the DC bus, and the connection unit 1021 is used to obtain the bus voltage; the control unit 1022 is connected to the connection unit 1021 and the energy storage module 101 respectively, and the control unit 1022 is used to control the energy storage module 101 to discharge to the DC bus through the DC-DC converter 1012 when the bus voltage is lower than the preset voltage threshold; when the power state is less than the preset minimum power, the energy storage module 101 is controlled to stop discharging to the bus voltage; when the power state is less than the preset maximum power, the energy storage module 101 is controlled to charge through the DC-DC converter 1012. Wherein, the preset minimum power is the minimum power consumed to meet the escalator's deceleration until it stops.

[0065] It should be noted that the connection unit 1021 can be connected to the DC bus of the escalator through a contactor, and the control unit 1022 can be connected to the energy storage module 101 through the RS485 communication protocol. In addition, the energy storage control module 102 can also be connected to the main controller of the escalator through a CAN (Controller Area Network, a serial communication protocol) bus.

[0066] It can be understood that in this embodiment, the control unit 1022 is used to control the energy storage module 101 to discharge to the DC bus through the DC-DC converter 1012 when the bus voltage is lower than the preset voltage threshold, so as to maintain the stability of the DC bus voltage and further ensure the stability of the escalator operation; when the power state is less than the preset minimum power, the energy storage module 101 is controlled to stop discharging to the bus voltage; when the power state is less than the preset maximum power, the energy storage module 101 is controlled to charge through the DC-DC converter 1012 to maintain the power of the energy storage module 101 above the power that can be slowly decelerated until it stops, so as to avoid the situation where the mains power is abnormal, and the escalator cannot be guaranteed to run or slowly stop. Among them, the preset minimum power is the minimum power consumed to meet the escalator's deceleration and stop. When the mains power is abnormal, the escalator can be maintained to slow down until it stops, thereby causing a secondary passenger injury accident and improving the safety of the escalator operation.

[0067] In one embodiment, Figure 3 As shown, an escalator operation control method is provided, which is applied to an escalator control module of the escalator operation control system described in any one of the above embodiments, and the method includes:

[0068] Step S302, obtaining the state of the mains power for the escalator collected by the power control module and the power state of the energy storage module sent by the energy storage control module.

[0069] The state of the mains power may include a normal state and an abnormal state, and the abnormal state includes power outage, momentary interruption and temporary drop.

[0070] The power state refers to the power stored in the battery of the energy storage module.

[0071] Optionally, the escalator control module obtains the state of the AC power collected by the power control module when the AC power is used to power the escalator, and the power state of the energy storage module sent by the energy storage control module when the energy storage module is used to power the escalator.

[0072] Step S304, according to the state of the mains and the power state of the energy storage module, respectively determine the operation strategy of powering the escalator by the mains and the operation strategy of powering the escalator by the energy storage module.

[0073] The energy storage module is used to be controlled by the power control module to supply power to the escalator when there is an abnormality in the state of the mains power.

[0074] The operation strategy may be a plan for controlling the operation of the escalator, including a speed change plan for controlling the operation of the escalator, the direction of operation, etc.

[0075] Optionally, the escalator control module determines the corresponding operating speed change plan for each escalator according to the state of the AC power and the power state of the energy storage module, and determines the operating strategy of powering the escalator by the AC power and the operating strategy of powering the escalator by the energy storage module according to the operating speed change plan.

[0076] Step S306, determining the running speed of the escalator according to the running strategy.

[0077] Optionally, the escalator control module determines the running speed of the escalator when powered by the mains and the running speed of the escalator when powered by the energy storage module according to the running strategy.

[0078] In this embodiment, the power control module monitors the mains power status and the energy storage module power in real time, and the escalator can quickly switch to energy storage power supply when the mains power is abnormal, avoiding operation interruption caused by power outage. In addition, according to different power supply states, the escalator control module can adjust the running speed. If the mains power supply is normal, the high-efficiency operation mode can be selected; when the energy storage module is used for power supply, the speed may be reduced to extend the use time of the energy storage module, which can optimize energy consumption, respond to abnormal mains power conditions, and reduce risks.

[0079] In one embodiment, step S302 determines, according to the state of the mains and the power state of the energy storage module, an operation strategy of powering the escalator by the mains and an operation strategy of powering the escalator by the energy storage module, respectively, including:

[0080] When the mains power is in normal state and the energy storage module is not supplying power, the escalator's operating strategy is determined to run at a preset normal speed; when the mains power is abnormal and the escalator is switched to be powered by the energy storage module, the escalator's deceleration is determined according to the power state, and the escalator is controlled to decelerate based on the deceleration until it stops.

[0081] Among them, deceleration can be a physical quantity that describes the reduction in the speed of an object, and is a measure of the reduction in the speed of an object per unit time.

[0082] Optionally, when the AC power status is normal and the energy storage module is not supplying power, the escalator control module determines that the escalator operation strategy is that the escalator runs at a preset normal speed. When the AC power status is abnormal and the power control module switches the value to the energy storage module to supply power to the escalator, the escalator control module calculates the minimum deceleration that the power status can support for the escalator to slow down from the current speed to zero based on the power status, and controls the escalator to decelerate based on the deceleration until it stops.

[0083] In this embodiment, when the escalator is powered by the energy storage module, the minimum deceleration that supports the escalator to decelerate to zero is determined according to the power status of the energy storage module, and the escalator is controlled to decelerate based on the deceleration until it stops. The escalator decelerates slowly until it stops, reducing the probability of secondary passenger injuries caused by the emergency stop of the escalator, thereby further improving the safety of the escalator operation.

[0084] In one embodiment, Figure 4 As shown, an escalator operation control device is provided, which specifically includes:

[0085] Elevator A, Elevator B, energy storage module, energy storage control module, power control module and escalator control module.

[0086] Among them, ladder A and ladder B are two escalators with opposite running directions. Ladder A and ladder B correspond to a power control module and an escalator control module respectively. The energy storage module, energy storage control module, power control module and escalator control module are linearly connected. The energy storage module includes a battery, a DC-DC unit and a DC-AC unit. The escalator operation control module includes all components that can enable the escalator to handle safe operation status, such as a control unit, a speed control unit, a controllable switch and a drive unit. The power control module can detect the state of the input mains power and switch the control power supply under a specific state. The escalator operation control module is the operation control module of each of the two escalators, and the input to the escalator control module is a three-phase power supply. The DC bus of the speed control unit of each of the two escalators is linearly connected to the connection unit and the energy storage module. The energy storage control module is linearly connected to the control unit of each of the two escalators. The data that the energy storage control module is linearly connected to the energy storage module and exchanges data is the electric energy of the energy storage module. The control device can be connected to multiple escalators with different running directions. The energy storage control module obtains the DC bus voltage of the two escalators through the escalator control unit. When the DC bus voltage difference is within the allowable range, the DC bus of the speed control unit of the two escalators is connected through the connection unit. Under the control of the energy storage control module, the energy storage module connects the DC bus and stores electric energy through the DC-DC module. The power control module monitors the mains power status. When an abnormality in the mains power is detected, it switches to the energy storage module for power supply. The energy storage module supplies electric energy to the escalator operation control module through the DC-AC module. The input to the power control module is a single-phase power supply. When the power is lower than P1, the energy storage control module stops the energy storage module from supplying power to the DC bus; when the power is higher than P2, the energy storage control module stops the DC bus from charging the energy storage module. The power P1 is the power that can maintain the slow braking and stopping of the two escalators when the mains power is cut off; the power P2 is the maximum cycle allowable charging power of the rated capacity of the energy storage module. Abnormal mains power supply includes but is not limited to power outages, momentary interruptions, and temporary drops.

[0087] For example, Figure 5As shown, a schematic diagram of the specific structure of the escalator and the escalator operation control device is provided. The escalator controller includes a control unit CMPU (Central Processing Unit), a speed control unit inverter, a controllable switch AVR (a switching power supply based on an AVR single-chip microcomputer) and a driving unit braking resistor. The controllable switch AVR transmits direct current DC24, DC48 or alternating current 220 to the CMPU. The CMPU is connected to the main control of the escalator through the CAN bus. The CMPU controls the contactor between the controllable switch AVR and the brake. The controllable switch AVR transmits direct current DC00 to the brake. The three-phase power supply AC380 is input into the inverter, and the inverter is connected to the braking resistor. The inverter is also connected to the DC-DC unit of the motor and the energy storage module through the contactor, wherein the line connecting the inverter and the DC-DC unit is DC BUS (Direct Current Bus), the energy storage control module is connected to the contactor of the DC bus, the energy storage module is connected to the energy storage module through the RS485 communication protocol, the DC-AC unit of the energy storage module generates 220V AC220, which is transmitted to the power switching unit of the power control module (instantaneous power failure detection module), the single-phase power supply AC220 of the mains is input into the power detection unit and the power magic unit, the power detection unit detects whether the mains has an abnormal situation of instantaneous power failure or power outage, and the power switching unit is connected to the controllable switch of the escalator control module.

[0088] In this embodiment, the escalator's potential energy can be converted into electrical energy and stored in the battery of the energy storage module, which has a higher energy-saving effect. When the AC power supply fluctuates, the escalator can be switched to battery power supply to maintain operation, which has higher operation reliability. When the AC power supply is abnormal, the escalator can be switched to battery power supply to maintain operation until the escalator slows down and stops, which has better safety performance.

[0089] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0090] Based on the same inventive concept, the embodiment of the present application also provides an escalator operation control device for implementing the escalator operation control method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more escalator operation control device embodiments provided below can refer to the limitations of the escalator operation control method above, and will not be repeated here.

[0091] In one embodiment, Figure 6 As shown, an escalator operation control device 600 is provided, comprising: an electric energy acquisition module 601, a strategy determination module 602 and an escalator control module 603, wherein:

[0092] The power acquisition module 601 is used to acquire the state of the mains power for the escalator collected by the power control module and the power state of the energy storage module sent by the energy storage control module.

[0093] The strategy determination module 602 is used to determine the operation strategy of the escalator being powered by the mains and the operation strategy of the escalator being powered by the energy storage module according to the state of the mains and the power state of the energy storage module; the energy storage module is used to be controlled by the power control module to power the escalator when there is an abnormality in the state of the mains.

[0094] The escalator control module 603 is used to determine the running speed of the escalator according to the running strategy.

[0095] Furthermore, in one embodiment, the strategy determination module 602 is also used to determine that the escalator's operating strategy is to run at a preset normal speed when the mains power supply is normal and the energy storage module is not supplying power; when the mains power supply is abnormal and the escalator is switched to be powered by the energy storage module, the deceleration of the escalator is determined according to the power status, and the escalator is controlled to decelerate based on the deceleration until it stops.

[0096] Each module in the escalator operation control device 600 can be implemented in whole or in part by software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in the form of hardware, or can be stored in a memory in a computer device in the form of software, so that the processor can call and execute operations corresponding to each module.

[0097] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 7As shown. The computer device includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store data such as the state of the mains and the state of the electric energy. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, an escalator operation control method is implemented.

[0098] Those skilled in the art will understand that Figure 7 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0099] In one embodiment, a computer device is further provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the steps in the above method embodiments when executing the computer program.

[0100] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0101] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0102] 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, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0103] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", "ideal embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0104] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0105] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. An escalator operation control system, characterized in that: include: An energy storage module, used for storing electric energy, and supplying power to the escalator when there is an abnormality in the state of the mains electricity, and supplying power to the DC bus when the bus voltage of the DC bus of the escalator is lower than a preset voltage threshold; an energy storage control module, connected to the energy storage module, for obtaining the power state of the energy storage module and the bus voltage of the escalator, and controlling the energy storage module to perform a charging operation or a discharging operation according to the power state and the bus voltage; a power control module connected to the energy storage module, and used to monitor the state of the mains power supplying the escalator and the power state of the energy storage module, and switch to the energy storage module to supply power to the escalator when there is an abnormality in the state of the mains power; The escalator control module is connected to the power control module and the energy storage control module respectively, and is used to receive the power status sent by the energy storage control module and the status of the mains power sent by the power control module, and control the running speed of the escalator when powered by the energy storage module and the running speed when powered by the mains power according to the power status and the status of the mains power.

2. The escalator operation control system according to claim 1, characterized in that: There are at least two escalators, and at least two of the escalators have different running directions. When any target escalator among all the escalators runs from top to bottom, the potential energy of the target escalator is converted into electrical energy to charge the energy storage module.

3. The escalator operation control system according to claim 2, characterized in that: Each of the escalators corresponds to one of the power control modules and one of the escalator control modules, and at least two of the escalators correspond to one of the energy storage control modules and one of the energy storage modules.

4. The escalator operation control system according to claim 1, characterized in that: The energy storage module comprises: Batteries; a DC-DC converter, the DC-DC converter being connected to the battery and the DC bus of the escalator respectively, the DC-DC converter being used to charge the battery, and when the bus voltage is lower than the preset voltage threshold, the battery supplies power to the DC bus through the DC-DC converter; A DC-AC converter is connected to the power control module and the battery respectively. When the state of the mains electricity is abnormal, the battery supplies power to the escalator through the DC-AC converter.

5. The escalator operation control system according to claim 4, characterized in that: The energy storage control module comprises: A connecting unit, the connecting unit is connected to the DC bus, and the connecting unit is used to obtain the bus voltage; A control unit, wherein the control unit is connected to the connection unit and the energy storage module respectively, and the control unit is used to control the energy storage module to discharge to the DC bus through the DC-DC converter when the bus voltage is lower than the preset voltage threshold; control the energy storage module to stop discharging to the bus voltage when the power state is less than a preset minimum power; and control the energy storage module to charge through the DC-DC converter when the power state is less than a preset maximum power; the preset minimum power is the minimum power consumed to meet the escalator's deceleration until it stops.

6. An escalator operation control method, characterized in that: An escalator control module applied to an escalator operation control system according to any one of claims 1 to 5, the method comprising: Obtaining the state of the mains power for the escalator collected by the power control module and the power state of the energy storage module sent by the energy storage control module; According to the state of the mains power and the power state of the energy storage module, an operation strategy of the mains power supplying the escalator and an operation strategy of the energy storage module supplying the escalator are determined respectively; the energy storage module is used to be controlled by the power control module to supply power to the escalator when there is an abnormality in the state of the mains power; According to the operation strategy, the operation speed of the escalator is determined.

7. The escalator operation control method according to claim 6, characterized in that: The step of determining, according to the state of the mains power and the power state of the energy storage module, an operation strategy of supplying power to the escalator by the mains power and an operation strategy of supplying power to the escalator by the energy storage module, respectively, comprises: When the state of the mains power is normal power supply and the energy storage module is not powered, determining that the operation strategy of the escalator is to run at a preset normal speed; When the state of the mains power is abnormal and the escalator is switched to be powered by the energy storage module, the deceleration of the escalator is determined according to the power state, and the escalator is controlled to decelerate based on the deceleration until it stops.

8. An escalator operation control device, characterized in that: An escalator control module applied to the escalator operation control system according to any one of claims 1 to 5, comprising: The power acquisition module is used to obtain the state of the mains power for the escalator collected by the power control module and the power state of the energy storage module sent by the energy storage control module; A strategy determination module, for determining, according to the state of the mains power and the power state of the energy storage module, an operation strategy for the mains power to supply power to the escalator and an operation strategy for the energy storage module to supply power to the escalator; the energy storage module is used to be controlled by the power control module to supply power to the escalator when there is an abnormality in the state of the mains power; The escalator control module is used to determine the running speed of the escalator according to the running strategy.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 6 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 6 to 7 are implemented.

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