Determination method, control method and control system for delay duration of escalator

Abstract

The invention discloses a delay duration determination method, control method and control system of an escalator. The method comprises the steps that a controller receives an escalator entering signal fed back by a first sensor and receives an escalator leaving signal fed back by a second sensor; wherein the first sensor is arranged at an entrance of the escalator, the second sensor is arranged at an exit of the escalator, the escalator entering signal is fed back when the first sensor detects that a target object enters the escalator, and the escalator leaving signal is fed back when the second sensor detects that the target object leaves the escalator; based on the escalator entering signal, determining an escalator entering moment corresponding to the target object; based on the escalator leaving signal, determining an escalator leaving moment corresponding to the target object; and the delay duration is obtained through the time difference between the escalator entering moment and the escalator leaving moment. In this way, the delay duration of the escalator can be determined in a self-adaptive mode.

Description

Technical Field

[0001] The present application relates to the technical field of elevators, and in particular to a method for determining a delay duration of an escalator, a control method and a control system. Background Art

[0002] As an important transportation equipment in buildings, escalators have been widely used in shopping malls, office buildings, hospitals, stations and other places. During the operation of existing escalators, photoelectric, beam or radar sensors are mainly used to determine whether there are passengers entering the escalator; when the sensor detects that a passenger has entered the escalator, it will immediately switch to high-speed operation to improve transportation efficiency; when the sensor does not detect a passenger for a long time, it will switch from high-speed operation to low-speed / stop operation to achieve energy saving.

[0003] Among them, the escalator is switched from normal mode to energy-saving mode through delay judgment, that is, relying on sensors to judge whether there are passengers entering, and if no passengers are detected during the period, a timing judgment is made. When the timing time reaches the preset delay time, the escalator switches to energy-saving mode. However, at present, the delay time is manually set in advance, which is not accurate enough, resulting in unnecessary energy loss. Summary of the invention

[0004] The main technical problem solved by the present application is to provide a method for determining the delay duration of an escalator, a control method and a control system, which can adaptively determine the delay duration of the escalator.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a method for determining the delay duration of an escalator, the method comprising: a controller receives an escalator entry signal fed back by a first sensor and receives an escalator exit signal fed back by a second sensor; wherein the first sensor is arranged at the escalator entrance, and the second sensor is arranged at the escalator exit, the escalator entry signal is fed back when the first sensor detects that a target object enters the escalator, and the escalator exit signal is fed back when the second sensor detects that the target object leaves the escalator; based on the escalator entry signal, the escalator entry time corresponding to the target object is determined; and based on the escalator exit signal, the escalator exit time corresponding to the target object is determined; and the delay duration is obtained by using the time difference between the escalator entry time and the escalator exit time.

[0006] The target object is any object that enters the escalator during the delay time determination process.

[0007] Among them, the target object is the reference object that first enters the escalator during the delay time determination process. Within the first preset time after the entry moment corresponding to the reference object, no new object enters the escalator, and the first preset time is greater than the time difference.

[0008] There are two first sensors, and the two first sensors are used to be arranged at intervals along the running direction of the escalator, one first sensor is arranged close to the second sensor, and the other first sensor is arranged far away from the second sensor; receiving the escalator entry signal fed back by the first sensor, including: receiving the first escalator entry signal and the second escalator entry signal; wherein the first escalator entry signal is fed back when the first sensor arranged far away from the second sensor detects that the target object enters the escalator, and the second escalator entry signal is fed back when the other first sensor detects that the target object enters the escalator; based on the escalator entry signal, determining the escalator entry time corresponding to the target object, including: determining a first interval duration between receiving the first escalator entry signal and receiving the second escalator entry signal; in response to the first interval duration meeting the first duration requirement, determining the escalator entry time corresponding to the target object based on the second escalator entry signal.

[0009] There are two second sensors, and the two second sensors are used to be arranged at intervals along the running direction of the escalator, one second sensor is arranged close to the first sensor, and the other second sensor is arranged far away from the first sensor; receiving the leaving escalator signal fed back by the second sensor, including: receiving the first leaving escalator signal and the second leaving escalator signal; wherein the first leaving escalator signal is fed back when the second sensor arranged close to the first sensor detects that the target object leaves the escalator, and the second leaving escalator signal is fed back when the other second sensor detects that the target object leaves the escalator; based on the leaving escalator signal, determining the leaving escalator time corresponding to the target object, including: determining the second interval duration between receiving the first leaving escalator signal and receiving the second leaving escalator signal; in response to the second interval duration meeting the second duration requirement, determining the leaving escalator time corresponding to the target object based on the second leaving escalator signal.

[0010] Wherein, based on the escalator entry signal, determining the escalator entry time corresponding to the target object includes: receiving the first load current information fed back by the drive component; wherein the drive component is connected to the controller and is used to connect to the escalator; based on the escalator entry signal and the first load current information, determining the escalator entry time corresponding to the target object; based on the escalator exit signal, determining the escalator exit time corresponding to the target object, including: receiving the second load current information fed back by the drive component; based on the escalator exit signal and the second load current information, determining the escalator exit time corresponding to the target object.

[0011] Among them, the delay duration is obtained by utilizing the time difference between the time of entering the escalator and the time of leaving the escalator, including: obtaining the escalator riding time based on the time difference between the time of entering the escalator and the time of leaving the escalator; and taking the sum of the escalator riding time and the second preset time as the delay duration.

[0012] To solve the above technical problems, another technical solution adopted in the present application is: to provide a control method for an escalator, the method comprising: detecting a target object entering the escalator, controlling the frequency converter to accelerate to increase the running speed of the escalator; in response to not detecting a new object entering the escalator within a delay period after the target object enters the escalator, controlling the frequency converter to decelerate to reduce the running speed of the escalator; wherein the delay period is determined by the above-mentioned method for determining the delay period of the escalator.

[0013] Among them, the control method of the escalator also includes: in response to detecting a new object entering the escalator within the delay period after the target object enters the escalator, maintaining the running speed of the escalator, and if no other new objects are detected entering the escalator within the delay period after the new object enters the escalator, controlling the frequency converter to decelerate to reduce the running speed of the escalator.

[0014] Among them, in response to the target object entering the escalator and not detecting a new object entering the escalator within the delay time, the frequency converter is controlled to decelerate to reduce the running speed of the escalator. The escalator control method also includes: detecting whether the running speed of the escalator reaches a speed threshold; in response to the running speed of the escalator reaching the speed threshold, controlling the frequency converter to enter an energy-saving mode.

[0015] To solve the above technical problems, another technical solution adopted in the present application is: to provide an escalator control system, which includes at least one first sensor, at least one second sensor and a controller, at least one first sensor and at least one second sensor are respectively connected to the controller, at least one first sensor is used to be set at the escalator entrance, at least one second sensor is used to be set at the escalator exit, and the controller is used to execute the above-mentioned escalator delay time determination method and escalator control method.

[0016] The above technical solution. The delay duration is determined by using the time difference between the time of entering the escalator and the time of leaving the escalator to adaptively determine the delay duration of the escalator. Compared with the delay duration manually set in advance, the determined delay duration is more compatible with the escalator under the current scene and the current ladder type, thereby reducing unnecessary energy loss and efficiently realizing the energy-saving operation of the escalator. In addition, the delay duration determination method provided in the present application can be implemented without the need for additional hardware, thereby reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a flowchart of an embodiment of a method for determining the delay duration of an escalator provided by the present application;

[0018] Figure 2It is a schematic diagram of the framework structure of an embodiment of an escalator control system provided by the present application;

[0019] Figure 3 It is a simplified diagram of an embodiment of an escalator transport object provided by the present application;

[0020] Figure 4 is a schematic diagram of another embodiment of an escalator transport object provided by the present application;

[0021] Figure 5 It is a flow chart of an embodiment of a control method for an escalator provided in the present application. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application. It should be noted that if there are descriptions of "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for description purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the ability of ordinary technicians in the field to achieve. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that the combination of such technical solutions does not exist and is not within the scope of protection required by the present application.

[0023] See also Figure 1 , Figure 1 1 is a flow chart of an embodiment of a method for determining the delay time of an escalator provided in the present application. It should be noted that if there are substantially the same results, this embodiment does not necessarily use Figure 1 The process sequence shown is limited. Figure 1 As shown, this embodiment includes:

[0024] Step S11: the controller receives the escalator entry signal fed back by the first sensor and receives the escalator exit signal fed back by the second sensor.

[0025] The delay time of existing escalators is manually set in advance. If the delay time is too long, the escalator will wait longer to switch to energy-saving mode after the actual object leaves, causing unnecessary energy loss and poor energy-saving effect. If the delay time is too short, the escalator will switch to energy-saving mode before the actual object leaves, affecting the safety of the object and transportation efficiency.

[0026] The method of this embodiment is used to determine the delay duration of the escalator by utilizing the time difference between an object entering the escalator and leaving the escalator. The delay duration of the escalator is determined adaptively. The determined delay duration is more consistent with the escalator in the current scene and the current escalator type, thereby reducing unnecessary energy loss and efficiently realizing energy-saving operation of the escalator in a no-object state.

[0027] In this embodiment, the controller receives an escalator entry signal fed back by a first sensor and an escalator exit signal fed back by a second sensor; wherein the first sensor is arranged at the entrance of the escalator, and the second sensor is arranged at the exit of the escalator, the escalator entry signal is fed back when the first sensor detects that a target object enters the escalator, and the escalator exit signal is fed back when the second sensor detects that a target object leaves the escalator.

[0028] Specifically, Figure 2 As shown, Figure 2 It is a schematic diagram of the framework structure of an embodiment of an escalator control system provided by the present application. The escalator control system includes a controller, at least one first sensor and at least one second sensor. At least one first sensor is arranged at the entrance of the escalator and connected to the controller. At least one second sensor is arranged at the exit of the escalator and connected to the controller. The first sensor located at the entrance of the escalator is used to detect whether an object enters the escalator, and the second sensor located at the exit of the escalator is used to detect whether an object leaves the escalator. When the first sensor arranged at the entrance of the escalator detects that the target object enters the escalator, it will generate an escalator entry signal and feed it back to the controller. When the second sensor arranged at the exit of the escalator detects that the target object leaves the escalator, it will generate an escalator exit signal and feed it back to the controller.

[0029] For example, if Figure 3 As shown, Figure 3 is a schematic diagram of an embodiment of an escalator transport object provided by the present application. The escalator control system includes a controller, a first sensor ( Figure 3 sensor A) and a second sensor ( Figure 3Sensor B in the escalator), sensor A is set at the escalator entrance, and sensor B is set at the escalator exit; when sensor A set at the escalator entrance detects that the target object enters the escalator, it will generate an escalator entry signal and feed it back to the controller; when sensor B set at the escalator exit detects that the target object leaves the escalator, it will generate an escalator exit signal and feed it back to the controller.

[0030] In one embodiment, the target object is a passenger, and the escalator is used to carry the passenger. Of course, in other embodiments, the target object may also be an article, and the escalator is used to carry the article, for example, the article is cargo etc.

[0031] In one embodiment, the first sensor and the second sensor may be photoelectric sensors. Of course, in other embodiments, the first sensor and the second sensor may also be through-beam sensors or radar sensors, etc., which are not specifically limited here.

[0032] Step S12: determining the escalator entry time corresponding to the target object based on the escalator entry signal; and determining the escalator exit time corresponding to the target object based on the escalator exit signal.

[0033] In this embodiment, based on the escalator entry signal, the escalator entry time corresponding to the target object is determined; and based on the escalator exit signal, the escalator exit time corresponding to the target object is determined. Figure 2 As shown, the escalator control system also includes a timer, which is connected to the controller; when the controller receives an escalator entry signal fed back by the first sensor, the controller will obtain the current time of the timer as the escalator entry time corresponding to the target object; when the controller receives an escalator exit signal fed back by the second sensor, the controller will obtain the current time of the timer as the escalator exit time corresponding to the target object.

[0034] In one embodiment, the target object is any object that enters the escalator during the delay duration determination process.

[0035] For example, take the target object as the first object entering the escalator during the delay time determination process as an example: Assuming that the first object is object α, the controller receives the first escalator entry signal fed back by the first sensor as feedback when the first sensor detects that object α enters the escalator; then, the controller controls the timer to start timing, and uses the time when the timer starts timing as the escalator entry time corresponding to object α. The controller receives the first escalator exit signal fed back by the second sensor as feedback when the second sensor detects that object α leaves the escalator; then, the controller controls the timer to stop timing, and uses the time when the timer stops timing as the escalator exit time corresponding to object α. It should be noted that, since object α is the first to enter the escalator, the first escalator entry signal fed back by the first sensor must correspond to object α; and since object α is the first to enter the escalator, it can be determined that object α is the first to leave the escalator, so the first escalator exit signal fed back by the second sensor must correspond to object α. In addition, since other objects may enter the escalator one after another after the first object (i.e., object α) enters the escalator, the controller will inevitably receive the escalator entry signals corresponding to the other objects. During the process of determining the delay time of the escalator, the controller does not record the moment when other objects enter the escalator.

[0036] For another example, take the target object as the third object entering the escalator during the delay time determination process as an example: Assuming that the third object is object β, the controller receives the third escalator entry signal fed back by the first sensor as the feedback when the first sensor detects that object β enters the escalator; then, the controller controls the timer to start timing, and the time when the timer starts timing is the corresponding escalator entry time of object α. The controller receives the third escalator exit signal fed back by the second sensor as the feedback when the second sensor detects that object β leaves the escalator; then, the controller controls the timer to stop timing, and the time when the timer stops timing is the corresponding escalator exit time of object β. It should be noted that the first sensor will feed back the escalator entry signal to the controller when it detects that an object enters the escalator. Since object β is the third to enter the escalator, the third escalator entry signal fed back by the first sensor must correspond to object β; the second sensor will feed back the escalator exit signal to the controller when it detects that an object leaves the escalator. Since object β is the third to enter the escalator, it can be determined that object β is the third to leave the escalator, so the third escalator exit signal fed back by the second sensor must correspond to object β.

[0037] For another example, take the target object as the third object entering the escalator during the delay time determination process as an example: assuming that the first entering object is object α, the second entering object is object β, and the third entering object is object γ, the controller receives the first escalator entering signal fed back by the first sensor as feedback when the first sensor detects object α entering the escalator; then, the controller controls the timer to start timing, and the time when the timer starts timing is the time when object α enters the escalator. The controller receives the second escalator entering signal fed back by the first sensor as feedback when the first sensor detects object β entering the escalator; then, the controller controls the timer to restart timing, and the time when the timer restarts timing is the time when object β enters the escalator. The controller receives the third escalator entering signal fed back by the first sensor as feedback when the first sensor detects object γ entering the escalator; then, the controller controls the timer to restart timing, and the time when the timer restarts timing is the time when object γ enters the escalator. The controller receives the third escalator leaving signal fed back by the second sensor as the feedback when the second sensor detects that the object γ leaves the escalator; then, the controller controls the timer to stop timing, and uses the time when the timer stops timing as the corresponding escalator leaving time of the object γ. It should be noted that when the first sensor detects that an object enters the escalator, it will feedback the escalator entering signal to the controller. Since the object γ is the third to enter the escalator, the third escalator entering signal fed back by the first sensor must correspond to the object γ; when the second sensor detects that an object leaves the escalator, it will feedback the escalator leaving signal to the controller. Since the object γ is the third to enter the escalator, it can be determined that the object γ is the third to leave the escalator, so the third escalator leaving signal fed back by the second sensor must correspond to the object γ. In addition, since the controller needs to obtain the corresponding escalator entering time of the third object, after the object γ enters the escalator, the timer will not be controlled to restart timing because a new object enters the escalator.

[0038] For another example, take the target object as the third object entering the escalator during the delay time determination process: Assuming that the first entering object is object α, the second entering object is object β, and the third entering object is object γ, the controller receives the first escalator entering signal fed back by the first sensor as feedback when the first sensor detects object α entering the escalator; then, the controller controls the timer to start timing, and the time when the timer starts timing is the time when object α enters the escalator. The controller receives the second escalator entering signal fed back by the first sensor as feedback when the first sensor detects object β entering the escalator; then, the controller controls the timer to feedback the time when the second escalator entering signal is received as the time when object β enters the escalator, and records it. The controller receives the third escalator entering signal fed back by the first sensor as feedback when the first sensor detects object γ entering the escalator; then, the controller controls the timer to feedback the time when the third escalator entering signal is received as the time when object γ enters the escalator, and records it. The controller receives the first escalator entry signal fed back by the second sensor as feedback when the second sensor detects that object α leaves the escalator; then, the controller controls the timer to feed back the moment of receiving the second escalator exit signal as the escalator exit moment corresponding to object β. The controller receives the third escalator exit signal fed back by the second sensor as feedback when the second sensor detects that object γ leaves the escalator; then, the controller controls the timer to feed back the moment of receiving the third escalator exit signal as the escalator exit moment corresponding to object γ, and records it. It should be noted that when the first sensor detects that an object enters the escalator, it will feed back the escalator entry signal to the controller. Since object γ is the third object to enter the escalator, the third escalator entry signal fed back by the first sensor must be that of object γ; when the second sensor detects that an object leaves the escalator, it will feed back the escalator exit signal to the controller. Since object γ is the third object to enter the escalator, it can be determined that object γ is the third object to leave the escalator, so the third escalator exit signal fed back by the second sensor must be that of object γ.

[0039] In other embodiments, the target object is the reference object that first enters the escalator during the delay time determination process, and within the first preset time after the entry time corresponding to the reference object, no new object enters the escalator, and the first preset time is greater than the time difference. The length of the first preset time is not limited and can be specifically set according to actual use needs.

[0040] For example, if Figure 3 As shown, the controller receives the first sensor ( Figure 3The first escalator entry signal is fed back by sensor A when sensor A detects object α entering the escalator; then, the controller controls the timer to start timing and records the time point as Ta. If the controller receives the second sensor ( Figure 3 Within the first preset time after the first leaving escalator signal fed back by sensor B) in the escalator, that is, after the leaving escalator time Tb of object α leaving the escalator, no new object enters the escalator, then object α is used as the reference object. At this time, the reference object is used as the target object; the entering escalator time Ta of reference object-object α is used as the entering escalator time corresponding to the target object; the leaving escalator time Tb of reference object-object α is used as the leaving escalator time corresponding to the target object.

[0041] For another example, the controller receives a first sensor ( Figure 3 The controller controls the timer to restart the timing and records the time point as Ta. If the controller receives a signal from the second sensor ( Figure 3 Within the first preset time after the first leaving escalator signal fed back by sensor B) in the escalator, that is, after the leaving escalator time Tb of object α leaving the escalator, no new object enters the escalator, then object α is used as the reference object. At this time, the reference object is used as the target object; the entering escalator time Ta of reference object-object α is used as the entering escalator time corresponding to the target object; the leaving escalator time Tb of reference object-object α is used as the leaving escalator time corresponding to the target object.

[0042] Because there are objects blocking or passing by the entrance of the escalator (such as when the target object is a passenger, there may be passenger blocking or running, etc.), there will be an error detection of the first sensor, which will lead to an error in the determined time of entering the escalator, and then the determined delay time is inaccurate. Therefore, in one embodiment, there are two first sensors, and the two first sensors are used to be arranged at intervals along the running direction of the escalator, one first sensor is arranged close to the second sensor, and the other first sensor is arranged far away from the second sensor, and the escalator entry signal fed back by the first sensor is received, specifically: receiving the first escalator entry signal and the second escalator entry signal, wherein the first escalator entry signal is fed back when the first sensor arranged far away from the second sensor detects that the target object enters the escalator, and the second escalator entry signal is fed back when another first sensor detects that the target object enters the escalator. At this time, based on the escalator entry signal, the escalator entry time corresponding to the target object is determined, specifically: determining the first interval duration between receiving the first escalator entry signal and receiving the second escalator entry signal; in response to the first interval duration meeting the first duration requirement, based on the second escalator entry signal, the escalator entry time corresponding to the target object is determined. That is to say, only when the first sensor set far away from the second sensor feeds back the escalator entry signal and the first sensor set close to the second sensor feeds back the escalator entry signal within a short period of time, can it be determined that the target object enters the escalator, and only then can the escalator entry time be determined.

[0043] Specifically, Figure 4 As shown, Figure 4 is a schematic diagram of another embodiment of an escalator transport object provided by the present application, wherein the controller receives a first sensor ( Figure 4 ① The sensor A1) in the first embodiment feeds back the escalator entry signal, and within the first interval after receiving the escalator entry signal, receives the first sensor ( Figure 4 ② sensor A2) feedback signal of entering the escalator; at this time, the controller controls the timer to start timing, and receives the moment of entering the escalator signal feedback from the first sensor set close to the second sensor as the moment of entering the escalator.

[0044] There is no limitation on the length of the first duration requirement, and it can be set according to actual usage needs.

[0045] When there is an object blocking or passing by the escalator exit (such as, when the target object is a passenger, there may be a passenger blocking or running, etc.), there will also be an error detection of the second sensor, which will lead to an error in the determined time of leaving the escalator, and then lead to an inaccurate delay time. Therefore, in other embodiments, there are two second sensors, and the two second sensors are used to be arranged at intervals along the running direction of the escalator, one second sensor is arranged close to the first sensor, and the other second sensor is arranged away from the first sensor. Receiving the leaving escalator signal fed back by the second sensor is specifically: receiving the first leaving escalator signal and the second leaving escalator signal, wherein the first leaving escalator signal is fed back when the second sensor arranged close to the first sensor detects that the target object leaves the escalator, and the second leaving escalator signal is fed back when another second sensor detects that the target object leaves the escalator. At this time, based on the leaving escalator signal, determining the leaving escalator time corresponding to the target object, specifically: determining the second interval duration between receiving the first leaving escalator signal and receiving the second leaving escalator signal; in response to the second interval duration meeting the second duration requirement, based on the second leaving escalator signal, determining the leaving escalator time corresponding to the target object. That is to say, only when the second sensor set close to the first sensor feeds back the leaving escalator signal and the second sensor set far away from the first sensor feeds back the leaving escalator signal within a short time, can it be determined that the target object has left the escalator, and only then can the leaving escalator time be determined.

[0046] Specifically, the controller receives a second sensor ( Figure 4 ④) feedback of the leaving escalator signal from the sensor B1), and within the second interval after receiving the leaving escalator signal, receiving the second sensor ( Figure 4 ③ The sensor B2) in the left escalator signal feedback; at this time, the time when the left escalator signal feedback from the second sensor set far away from the first sensor is received is used as the time of leaving the escalator.

[0047] There is no limitation on the length of the second duration requirement, and it can be set according to actual usage needs.

[0048] Since the weight of the escalator will increase after the object enters the escalator, in this case, in order to ensure the stable operation of the escalator, the driving component of the escalator controller system needs to provide a greater driving force, and the load current of the driving component increases so that the driving component can provide a greater driving force. In addition, since the weight of the escalator will decrease after the object leaves the escalator, in this case, the driving component of the escalator controller system can still ensure the stable operation of the escalator while reducing the driving force provided; therefore, the driving component will reduce the driving force provided after an object leaves the escalator. Therefore, the load current information of the driving component can also assist in determining whether a new object enters the escalator or whether an object leaves the escalator.

[0049] Therefore, in one embodiment, based on the escalator entry signal, the target object's escalator entry time is determined, specifically: receiving the first load current information fed back by the drive component, wherein the drive component is connected to the controller and used to connect to the escalator; based on the escalator entry signal and the first load current information, the target object's corresponding escalator entry time is determined. Based on the escalator exit signal, the target object's corresponding escalator exit time is determined, specifically: receiving the second current information fed back by the drive component; based on the escalator exit signal and the second load current information, the target object's corresponding escalator exit time is determined. In other words, through the load current change of the drive component and the detection signal fed back by the sensor, that is, through the load current + sensor combination, it is determined whether the target object enters the escalator or whether the target object leaves the escalator; and when it is determined that the target object enters the escalator, the target object's corresponding escalator entry time is determined based on the escalator entry signal, and when it is determined that the target object leaves the escalator, the target object's corresponding escalator exit time is determined based on the escalator exit signal.

[0050] Step S13: Using the time difference between the time of entering the escalator and the time of leaving the escalator, the delay duration is obtained.

[0051] In this embodiment, the delay duration is obtained by using the time difference between the time of entering the escalator and the time of leaving the escalator. Determining the delay duration by using the time difference between the time of entering the escalator and the time of leaving the escalator is to adaptively determine the delay duration of the escalator. Compared with the delay duration manually set in advance, the determined delay duration is more compatible with the escalator under the current scene and the current ladder type, thereby reducing unnecessary energy loss and efficiently realizing the energy-saving operation of the escalator. In addition, the delay duration determination method provided by the present application can be implemented without the need for additional hardware, thereby reducing costs.

[0052] In one embodiment, the time difference between the time when the target object enters the escalator and the time when the target object leaves the escalator is directly used as the delay time.

[0053] In order to avoid frequent starting and stopping of the escalator due to a new object entering the escalator in a short time, in one embodiment, first, the riding time is obtained based on the time difference between the time when the target object enters the escalator and the time when the target object leaves the escalator; then, the sum of the riding time and the second preset time is used as the delay time. That is, based on the time difference between the time when the target object enters the escalator and the time when the target object leaves the escalator, a certain time is added as the delay time.

[0054] There is no limitation on the length of the second preset time period, and it can be set according to actual use needs.

[0055] In the above implementation, the delay duration is determined by using the time difference between the time of entering the escalator and the time of leaving the escalator, so as to adaptively determine the delay duration of the escalator. Compared with the delay duration manually set in advance, the determined delay duration is more compatible with the escalator under the current scene and the current ladder type, thereby reducing unnecessary energy loss and efficiently realizing the energy-saving operation of the escalator. In addition, the delay duration determination method provided by the present application can be implemented without adding additional hardware, thereby reducing costs.

[0056] See also Figure 5 , Figure 5 1 is a flow chart of an embodiment of the escalator control method provided by the present application. It should be noted that if there are substantially the same results, this embodiment is not limited to Figure 5 The process sequence shown is limited. Figure 5 As shown, this embodiment includes:

[0057] Step S51: Detecting that a target object enters the escalator, controlling the frequency converter to accelerate to increase the running speed of the escalator.

[0058] In this embodiment, when the target object enters the escalator, the inverter is controlled to accelerate to increase the running speed of the escalator. That is, after the controller determines that the target object enters the escalator, it controls the inverter to accelerate so that the motor speed increases, thereby increasing the running speed of the escalator and ensuring the transportation efficiency of the escalator.

[0059] Specifically, Figure 2As shown, the escalator control system includes a controller and at least one first sensor connected to each other, and the at least one first sensor is arranged at the entrance of the escalator; when the target object enters the escalator, the first sensor arranged at the entrance of the escalator detects that the target object enters the escalator, generates an escalator entry signal, and sends it to the controller; after the controller receives the escalator entry signal sent by the first sensor, it determines that the target object enters the escalator, and at this time controls the frequency converter to enter the acceleration operation mode, that is, controls the frequency converter to accelerate, so that the motor speed increases, thereby increasing the running speed of the escalator, to ensure the transportation efficiency of the escalator.

[0060] Step S52: In response to not detecting a new object entering the escalator within the delay time after the target object enters the escalator, controlling the frequency converter to decelerate to reduce the running speed of the escalator.

[0061] In this embodiment, in response to the fact that no new object is detected entering the escalator within the delay time after the target object enters the escalator, the frequency converter is controlled to decelerate to reduce the running speed of the escalator. That is to say, within the delay time after the controller controls the frequency converter to accelerate, if no new object is detected entering the escalator, the frequency converter will be controlled to decelerate, so that the motor speed is reduced, thereby reducing the running speed of the escalator, so as to reduce the energy loss when there is no object being carried on the escalator, thereby achieving the purpose of energy saving.

[0062] Specifically, Figure 2 As shown, the escalator control system also includes at least one second sensor connected to the controller, and the second sensor is arranged at the escalator exit; when the target object leaves the escalator, the second sensor arranged at the escalator exit detects that the target object leaves the escalator, generates an escalator leaving signal, and sends it to the controller; after receiving the escalator leaving signal sent by the second sensor, the controller determines that the target object has left the escalator, and no new object is detected to enter the escalator within the delay time after the target object corresponding to the escalator entry moment, at this time, the frequency converter is controlled to exit the acceleration operation mode, and enter the low-speed operation mode from the acceleration operation mode, that is, the frequency converter is controlled to decelerate, so that the motor speed is reduced, thereby reducing the running speed of the escalator, so as to reduce the energy loss when there is no carrying object on the escalator, thereby achieving the purpose of energy saving.

[0063] It should be noted that the delay duration is determined by any of the embodiments of the above-mentioned method for determining the delay duration of the escalator. Since the delay duration is determined by the time difference between the time of entering the escalator and the time of leaving the escalator, that is, the delay duration of the escalator is determined adaptively, compared with the delay duration manually set in advance, the determined delay duration is more compatible with the escalator under the current scene and the current type of escalator, thereby reducing unnecessary energy loss and efficiently realizing the energy-saving operation of the escalator. Therefore, by controlling the escalator based on this delay duration, it is possible to accurately realize energy-saving operation when there is no load-bearing object on the escalator, reduce unnecessary energy loss, and improve energy-saving efficiency.

[0064] In one embodiment, in response to detecting a new object entering the escalator within the delay period after the target object enters the escalator, the running speed of the escalator is maintained, and if no other new object is detected entering the escalator within the delay period after the new object enters the escalator, the frequency converter is controlled to decelerate to reduce the running speed of the escalator. In other words, when the controller detects a new object entering the escalator within the delay period after controlling the frequency converter to accelerate, the running speed of the escalator is maintained to ensure the transportation efficiency of the escalator. It should be noted that after entering the low-speed operation mode, as long as a new object is detected entering the escalator, the frequency converter will be controlled to exit the low-speed operation mode and the frequency converter will be controlled to accelerate to achieve the purpose of immediate response to transportation.

[0065] In order to further reduce unnecessary energy loss and improve energy-saving efficiency, in one embodiment, in response to the target object entering the escalator, if no new object is detected entering the escalator within the delay time, the inverter is controlled to accelerate to reduce the running speed of the escalator, and then it is detected whether the running speed of the escalator reaches the speed threshold; in response to the running speed of the escalator reaching the speed threshold, the inverter is controlled to enter the energy-saving mode. That is to say, the energy-saving control of the escalator is divided into two stages: the first stage: when no new object is detected entering the escalator within the delay time after the target object enters the escalator, the inverter is controlled to decelerate so that the escalator runs at a low speed, so as to achieve the purpose of energy saving and improve energy-saving efficiency; the second stage, when it is detected that the running speed of the escalator is reduced to the speed threshold, the inverter is controlled to enter the energy-saving mode, wherein the energy-saving mode is to minimize the load current while keeping the motor speed unchanged, so as to further improve the energy-saving efficiency.

[0066] like Figure 2As shown, the present application also provides an escalator control system, which includes at least one first sensor, at least one second sensor and a controller, wherein the at least one first sensor and the at least one second sensor are respectively connected to the controller, the at least one first sensor is used to be set at the entrance of the escalator, and the at least one second sensor is used to be set at the exit of the escalator, and the controller is used to execute the above-mentioned escalator delay time determination method and escalator control method.

[0067] The delay time is determined by the time difference between the time of entering the escalator and the time of leaving the escalator, that is, the delay time of the escalator is determined adaptively. Compared with the delay time set in advance, the determined delay time is more compatible with the escalator under the current scene and the current type of escalator, thereby reducing unnecessary energy loss and efficiently realizing the energy-saving operation of the escalator. Controlling the escalator based on this delay time can accurately realize energy-saving operation when there is no load on the escalator, reduce unnecessary energy loss, and improve energy-saving efficiency.

[0068] If the technical solution of this application involves personal information, the product using the technical solution of this application has clearly informed the personal information processing rules and obtained the individual's voluntary consent before processing the personal information. If the technical solution of this application involves sensitive personal information, the product using the technical solution of this application has obtained the individual's separate consent before processing the sensitive personal information, and at the same time meets the "explicit consent" requirement. For example, on personal information collection devices such as cameras, clear and prominent signs are set to inform that the personal information collection scope has been entered and personal information will be collected. If the individual voluntarily enters the collection scope, it is deemed that he or she agrees to the collection of his or her personal information; or on the device that processes personal information, the personal information processing rules are notified by obvious signs / information, and the individual's authorization is obtained through pop-up information or by asking the individual to upload his or her personal information; among them, the personal information processing rules may include information such as the personal information processor, the purpose of personal information processing, the processing method, and the type of personal information processed.

[0069] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for determining the delay duration of an escalator, characterized in that: The method comprises: The controller receives an escalator entry signal fed back by a first sensor and an escalator exit signal fed back by a second sensor; wherein the first sensor is arranged at an escalator entrance, and the second sensor is arranged at an escalator exit, the escalator entry signal is fed back when the first sensor detects that a target object enters the escalator, and the escalator exit signal is fed back when the second sensor detects that the target object leaves the escalator; Based on the escalator entry signal, determining the escalator entry time corresponding to the target object; and based on the escalator exit signal, determining the escalator exit time corresponding to the target object; The delay duration is obtained by using the time difference between the time of entering the escalator and the time of leaving the escalator.

2. The method according to claim 1, characterized in that: The target object is any object that enters the escalator during the delay duration determination process.

3. The method according to claim 1, characterized in that The target object is the reference object that first enters the escalator during the delay duration determination process. Within a first preset duration after the entry moment corresponding to the reference object, no new object enters the escalator, and the first preset duration is greater than the time difference.

4. The method according to claim 1, characterized in that: There are two first sensors, and the two first sensors are arranged at intervals along the running direction of the escalator, one of the first sensors is arranged close to the second sensor, and the other of the first sensors is arranged far away from the second sensor; The step of receiving the escalator entry signal fed back by the first sensor comprises: Receiving a first escalator entry signal and a second escalator entry signal; wherein the first escalator entry signal is fed back when the first sensor disposed away from the second sensor detects that the target object enters the escalator, and the second escalator entry signal is fed back when another of the first sensors detects that the target object enters the escalator; The step of determining the escalator entry time corresponding to the target object based on the escalator entry signal includes: Determining a first interval duration between receiving the first escalator entry signal and receiving the second escalator entry signal; In response to the first interval duration meeting the first duration requirement, based on the second escalator entry signal, the escalator entry time corresponding to the target object is determined.

5. The method according to claim 1, characterized in that There are two second sensors, and the two second sensors are arranged at intervals along the running direction of the escalator, one second sensor is arranged close to the first sensor, and the other second sensor is arranged far away from the first sensor; The step of receiving the escalator leaving signal fed back by the second sensor comprises: Receiving a first escalator leaving signal and a second escalator leaving signal; wherein the first escalator leaving signal is fed back when the second sensor arranged close to the first sensor detects that the target object leaves the escalator, and the second escalator leaving signal is fed back when another second sensor detects that the target object leaves the escalator; The step of determining the escalator leaving time corresponding to the target object based on the escalator leaving signal includes: Determining a second interval duration between receiving the first escalator leaving signal and receiving the second escalator leaving signal; In response to the second interval duration meeting the second duration requirement, a corresponding escalator leaving time of the target object is determined based on the second escalator leaving signal.

6. The method according to claim 1, characterized in that The step of determining the escalator entry time corresponding to the target object based on the escalator entry signal includes: Receiving first load current information fed back by a driving component; wherein the driving component is connected to the controller and is used to connect to the escalator; Determining an escalator entry time corresponding to the target object based on the escalator entry signal and the first load current information; The step of determining the escalator leaving time corresponding to the target object based on the escalator leaving signal includes: receiving second load current information fed back by the driving component; Based on the escalator leaving signal and the second load current information, a leaving escalator time corresponding to the target object is determined.

7. The method according to claim 1, characterized in that The method of obtaining the delay duration by using the time difference between the time of entering the escalator and the time of leaving the escalator comprises: Obtaining the duration of the escalator ride based on the time difference between the escalator entry time and the escalator exit time; The sum of the elevator riding time and the second preset time is used as the delay time.

8. A control method for an escalator, characterized in that: Detecting that a target object enters the escalator, controlling the frequency converter to accelerate so as to increase the running speed of the escalator; In response to not detecting a new object entering the escalator within a delay period after the target object enters the escalator, controlling the frequency converter to decelerate to reduce the operating speed of the escalator; wherein the delay period is determined using the method described in any one of claims 1-7.

9. The method according to claim 8, characterized in that The method further comprises: In response to detecting a new object entering the escalator within a delay period after the target object enters the escalator, the running speed of the escalator is maintained, and if no other new object is detected entering the escalator within a delay period after the new object enters the escalator, the frequency converter is controlled to decelerate to reduce the running speed of the escalator.

10. The method according to claim 8, characterized in that After controlling the frequency converter to decelerate in response to the target object entering the escalator and detecting that no new object enters the escalator within the delay time after the target object enters the escalator to reduce the running speed of the escalator, the method further includes: Detecting whether the running speed of the escalator reaches a speed threshold; In response to the running speed of the escalator reaching the speed threshold, the frequency converter is controlled to enter an energy-saving mode.

11. An escalator control system, characterized in that: The escalator control system includes at least one first sensor, at least one second sensor and a controller, wherein the at least one first sensor and the at least one second sensor are respectively connected to the controller, the at least one first sensor is used to be set at the escalator entrance, the at least one second sensor is used to be set at the escalator exit, and the controller is used to execute the method described in any one of claims 1 to 10.

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