System and method for detecting overcapacity of an elevator car

Abstract

The application discloses a system and method for detecting overcapacity of an elevator car, which comprises a video monitoring unit inside and outside the car for obtaining a hall image and an image inside and outside the car; a video analysis processing unit for determining whether the car outside passenger's behavior of taking the elevator belongs to a predetermined behavior mode according to the hall image and the image inside and outside the car, the predetermined behavior mode being the behavior of judging that the available volume inside the car is overcapacity; and an elevator control unit for determining whether the elevator is in an overcapacity state although not overloaded, calling a full-load straight-drive function mode of the elevator if the video analysis processing unit determines the predetermined behavior mode twice continuously, and automatically exiting the full-load straight-drive function mode of the elevator when running to a calling floor inside the car. The method is realized by the system, the application can detect the overcapacity of the elevator car at a low hardware cost, and improves the elevator operation efficiency and customer satisfaction.

Description

TECHNICAL FIELD

[0001] The present application relates to the elevator technical field, and particularly to a system and method for detecting over-capacity of an elevator car. BACKGROUND

[0002] Most of the existing passenger elevators have overloading detection function, but few of them are equipped with over-capacity detection function. Therefore, when the elevator does not reach the full load state, but the available volume of the car has been saturated and cannot accommodate passengers, the elevator will still respond to the external call instructions floor by floor, which will cause the elevator use efficiency to be reduced and the user's riding experience to be poor.

[0003] Most of the current over-capacity detection technologies use infrared, ultrasonic and other devices to detect the area utilization rate of the elevator car, which will use various sensors and have high implementation cost. At the same time, the detection effect will be different due to the quality and precision of various electrical components. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the present application provides a system and method for detecting over-capacity of an elevator car, which can utilize the original full-load straight driving function of the elevator and achieve the purpose of detecting over-capacity of the elevator car with lower hardware cost.

[0005] The technical scheme adopted by the present application is as follows:

[0006] A method for detecting over-capacity of an elevator car, comprising the following steps:

[0007] Step S1. The elevator runs the boarding function and reaches the floor of the external call instruction, opens the door to respond, obtains the image of the waiting hall and the image inside and outside the car, and determines whether the boarding behavior of the passengers outside the car belongs to the predetermined behavior mode, which is the behavior of the passengers after judging that the available volume in the car is over-capacity.

[0008] Step S2. The elevator reaches the next floor of the external call instruction, opens the door to respond, obtains the image of the waiting hall and the image inside and outside the car, and determines whether the boarding behavior of the passengers outside the car belongs to the predetermined behavior mode.

[0009] Step S3. If the predetermined behavior mode is determined twice in succession, the elevator is in the state of over-capacity although it is not overloaded, and the elevator calls the full-load straight driving function mode; otherwise, the elevator is not in the state of over-capacity although it is not overloaded, and the elevator continues to run the boarding function.

[0010] Step S4. When the elevator is in the full-load straight driving function mode, it automatically exits the full-load straight driving function mode after running to the floor of the internal call instruction.

[0011] In the method for detecting over-capacity of an elevator car disclosed in the application, the process of determining whether the boarding behavior of the passenger outside the car belongs to the predetermined behavior mode in step S1 is specifically as follows: first, reminding the passenger not to block the monitoring camera, the monitoring camera acquires the hall image and the image inside and outside the car, captures the boarding behavior of a single passenger without load, and determines whether it belongs to the predetermined behavior mode.

[0012] In the method for detecting over-capacity of an elevator car disclosed in the application, the predetermined behavior mode is that a single passenger without load has a pre-boarding behavior but does not enter the car, or has a waiting behavior first, then enters the car and exits the car, and selects the continuous behavior of continuing to wait for boarding outside the car.

[0013] In the method for detecting over-capacity of an elevator car disclosed in the application, in step S3, when the elevator calls the full-load straight-drive function mode, the passenger is prompted that the over-capacity straight-drive function has been started.

[0014] In the method for detecting over-capacity of an elevator car disclosed in the application, in step S4, when the elevator is in the full-load straight-drive function mode, the hall-out indicator light displays overloading or over-limit, the elevator only responds to the in-car instruction, and the elevator automatically restores the hall-out calling instruction after driving.

[0015] Based on the same inventive concept, the application further discloses a system for detecting over-capacity of an elevator car, which is used to implement the aforementioned method, and specifically,

[0016] A system for detecting over-capacity of an elevator car comprises:

[0017] A car-in and car-out video monitoring unit is configured to acquire a hall image and an image inside and outside the car.

[0018] A video analysis processing unit is configured to determine, according to the hall image and the image inside and outside the car, whether the boarding behavior of the passenger outside the car belongs to a predetermined behavior mode, the predetermined behavior mode being the behavior of the passenger after judging that the available capacity in the car is over-capacity.

[0019] An elevator control unit is configured to determine whether the elevator is in an over-capacity state without overloading, determine that the elevator is in the over-capacity state without overloading if the video analysis processing unit determines the predetermined behavior mode twice in succession, call the full-load straight-drive function mode of the elevator, and automatically exit the full-load straight-drive function mode of the elevator when the elevator runs to the in-car calling instruction floor.

[0020] In the system for detecting over-capacity of an elevator car disclosed in the application, the car-in and car-out video monitoring unit comprises:

[0021] A hall monitoring camera is configured to acquire the hall image and capture the waiting behavior of the passenger.

[0022] The monitoring camera device is used for acquiring images inside and outside the car and capturing the behavior of a single passenger without load.

[0023] In the system for detecting overcapacity of the elevator car, the system further comprises a voice broadcast unit for prompting that the overcapacity straight driving function of the elevator is started and reminding passengers not to block the monitoring camera device.

[0024] In the system for detecting overcapacity of the elevator car, the system further comprises a light curtain device for assisting the video analysis processing unit in determining the behavior of a passenger entering and then exiting the car.

[0025] In the system for detecting overcapacity of the elevator car, the video analysis processing unit is provided with a predetermined behavior mode model for enhancing the determination ability through training and learning.

[0026] The present application has the following advantages:

[0027] The present application provides a system and method for detecting overcapacity of the elevator car. The monitoring camera device is used for acquiring images inside and outside the car and capturing the behavior of a single passenger without load. The behavior of a passenger outside the car is determined whether it belongs to a predetermined behavior mode, i.e. a single passenger without load has a behavior of pre-boarding the car but does not enter the car, or has a behavior of entering and then exiting the car after a behavior of waiting for the car. The predetermined behavior mode is the behavior of a passenger after determining that the available capacity in the car is overcapacity. To avoid special situations, the elevator is determined to be in an overcapacity state without overloading by determining twice that the behavior conforms to the predetermined behavior mode. The full-load straight driving function of the elevator is called, and the original full-load straight driving function of the elevator is used to achieve the purpose of detecting overcapacity of the elevator car with low hardware cost, improve the efficiency of the elevator, and improve customer satisfaction. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0029] Figure 1 The flowchart of the method for detecting overcapacity of the elevator car in the present application;

[0030] Figure 2 The schematic diagram of the system for detecting overcapacity of the elevator car in the present application. DETAILED DESCRIPTION

[0031] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the purpose of description, only the parts related to the present application are shown in the drawings, rather than all the structures. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0032] The terms "comprising" and "having" and any variations thereof in the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally further includes steps or units not listed, or optionally further includes other steps or units inherent to these processes, methods, products or devices.

[0033] In the present application, referring to "embodiments" means that the specific features, structures or characteristics described in conjunction with the embodiments can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0034] Current over-volume detection technology mostly uses infrared, ultrasonic and other devices to detect the area utilization rate of the elevator car, which uses various sensors and has high implementation cost. At the same time, the detection effect will be greatly different due to the quality and precision of various electrical components.

[0035] In order to solve the problems of the prior art, the present application provides a method for detecting over-volume of an elevator car, the flowchart of which is shown in FIG. 1. Figure 1 The method comprises the following steps:

[0036] Step S1. The elevator runs the boarding function, goes to a hall outside the calling instruction layer, opens the door to respond, obtains the image of the waiting hall and the image inside and outside the car, and determines whether the boarding behavior of the passenger outside the car belongs to a predetermined behavior mode, which is the behavior of the passenger after judging that the available volume in the car is over-volume.

[0037] Step S2. The elevator goes to the next hall outside the calling instruction layer, opens the door to respond, obtains the image of the waiting hall and the image inside and outside the car, and determines whether the boarding behavior of the passenger outside the car belongs to a predetermined behavior mode.

[0038] Step S3. If the determination is consistent with the predetermined behavior pattern for two times in succession, the elevator is in the state of non-overload but over-capacity, the elevator calls the full-load (over-capacity) straight-drive function mode; otherwise, the elevator is not in the state of non-overload but over-capacity, the elevator continues to run the boarding function.

[0039] Step S4. The elevator is in the full-load straight-drive function mode, and when running to the car-in-call floor, the full-load (over-capacity) straight-drive function mode is automatically exited.

[0040] The method determines whether the boarding behavior of the passenger outside the car belongs to a predetermined behavior pattern by acquiring the hall image and the car-in and car-out image. The predetermined behavior pattern is the behavior of the passenger after judging that the available capacity in the car is over-capacity. In order to avoid special situations, the elevator is determined to be in the state of non-overload but over-capacity after two times of determination that the boarding behavior is consistent with the predetermined behavior pattern, and then the full-load straight-drive function mode of the elevator is called. The original full-load straight-drive function of the elevator and the low hardware cost are used to achieve the purpose of detecting the over-capacity of the elevator car, improve the efficiency of the elevator, and can be widely used in high-rise passenger elevators to improve customer satisfaction.

[0041] In one embodiment, in step S1, the process of determining whether the boarding behavior of the passenger outside the car belongs to a predetermined behavior pattern is specifically: first, reminding the passenger not to block the monitoring camera, the monitoring camera acquires the hall image and the car-in and car-out image, captures the boarding behavior of the passenger, and determines whether it belongs to the predetermined behavior pattern. Specifically, the boarding situation of the passenger outside the car and whether the passenger carries goods are obtained through the hall image, it is determined whether the passenger is a single person without load, and the boarding behavior of the single person without load is captured through the car-in and car-out image.

[0042] In one embodiment, the predetermined behavior pattern is that the single person without load has a pre-boarding behavior but does not enter the car, or has a boarding behavior first, then enters and exits the car, and selects to continue waiting for boarding outside the car. The predetermined behavior pattern is the behavior of the single person without load after judging that the available capacity in the car is over-capacity. By judging the boarding behavior of the single person without load, the efficiency of judging whether the elevator is over-capacity can be improved, and the efficiency of the elevator can be improved.

[0043] In one embodiment, in step S3, when the elevator calls the full-load straight-drive function mode, the passenger is prompted that the over-capacity straight-drive function is started, the efficiency of the elevator is improved, and customer satisfaction is improved.

[0044] In one embodiment, in step S4, when the elevator is in the full load straight driving function mode, the hall outside indicating light displays overload or over limit, the elevator only responds to the in-car instruction, and the elevator automatically restores the hall outside call instruction after driving. The original full load straight driving function of the elevator is used, and the purpose of detecting the elevator car over volume is achieved with low hardware cost, the elevator operation efficiency is improved, and the system can be widely used in high-rise passenger elevators to improve customer satisfaction.

[0045] The above embodiment introduces the method for detecting the elevator car over volume in detail, and the following embodiment will try to introduce the system for detecting the elevator car over volume.

[0046] As shown in the accompanying Figure 2 The system for detecting the elevator car over volume comprises:

[0047] The car inside and outside video monitoring unit is configured to acquire the hall image and the car inside and outside image.

[0048] The video analysis processing unit is configured to determine whether the passenger behavior outside the car belongs to a predetermined behavior mode according to the hall image and the car inside and outside image, the predetermined behavior mode being the behavior of the passenger after judging that the available volume in the car is over volume.

[0049] The elevator control unit is configured to determine whether the elevator is in the over volume state although not overloaded, determine that the elevator is in the over volume state although not overloaded if the video analysis processing unit determines the predetermined behavior mode twice in succession, call the elevator full load straight driving function mode, and automatically exit the elevator full load straight driving function mode when running to the car inside call instruction floor.

[0050] Specifically, the car inside and outside video monitoring unit comprises a hall monitoring camera device and a car inside and outside monitoring camera device. The hall monitoring camera device is configured to acquire the hall image and capture the passenger hall behavior. The car inside and outside monitoring camera device is configured to acquire the car inside and outside image and capture the passenger behavior of the single person without load. The passenger hall condition and whether the passenger carries goods are acquired through the hall behavior captured by the hall monitoring camera device, whether the passenger is a single person without load is determined, and the passenger behavior of the single person without load is captured through the car inside and outside monitoring camera device.

[0051] In one embodiment, the system further comprises a voice broadcast unit configured to prompt that the elevator over volume straight driving function is started and remind the passenger not to block the monitoring camera device. The judgment efficiency of the elevator over volume is improved through the language broadcast unit, and the elevator operation efficiency is improved.

[0052] In one embodiment, the system further comprises a light curtain device configured to assist the video analysis processing unit in determining the behavior of the passenger entering and exiting the car.

[0053] In one embodiment, the video analysis processing unit is provided with a predetermined behavior pattern model for enhancing its decision-making ability through training learning.

[0054] The system acquires the hall image and the image inside and outside the car through the video monitoring unit inside and outside the car, and the video analysis processing unit determines whether the boarding behavior of the passenger outside the car belongs to the predetermined behavior pattern, i.e. the boarding behavior of a single passenger without load but not entering the car, or the behavior of entering and exiting the car after the boarding behavior, and the behavior of continuing to wait for boarding outside the car. The predetermined behavior pattern is the behavior of the passenger after judging that the available volume in the car is over volume. In order to avoid special situations, the elevator control unit determines that the elevator is in an over volume state although it is not overloaded by determining twice in succession that the behavior conforms to the predetermined behavior pattern, and then calls the full load straight driving function mode, uses the original full load straight driving function of the elevator, and achieves the purpose of detecting the over volume of the elevator car with low hardware cost, improves the efficiency of the elevator operation, and can be widely used in high-rise passenger elevators to improve customer satisfaction.

[0055] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for detecting over-capacity in an elevator car, characterized in that, Includes the following steps: Step S1. The elevator operates the elevator function, travels to the call command floor outside the lobby, and opens the door in response; acquires images of the waiting hall and the inside and outside of the car, and determines whether the passenger's elevator riding behavior outside the car belongs to the predetermined behavior mode. The predetermined behavior mode is the behavior of the passenger after judging that the available volume inside the car is exceeded. Step S2. When the elevator reaches the next hall outside the call command floor, the door opens in response, the image of the waiting hall and the images inside and outside the car are obtained, and it is determined whether the passenger's elevator riding behavior outside the car belongs to the predetermined behavior pattern; Step S3. If the predetermined behavior pattern is met twice in a row, the elevator is in a state of being overloaded but exceeding its capacity, and the elevator will activate the full-load direct travel function mode; otherwise, the elevator is not in a state of being overloaded but exceeding its capacity, and the elevator will continue to operate the elevator function. Step S4. The elevator is in full-load direct-drive mode. When it reaches the floor where the call command is received, it will automatically exit the full-load direct-drive mode.

2. The method for detecting over-volume in an elevator car according to claim 1, characterized in that, In step S1, the specific process of acquiring images of the waiting hall and the inside and outside of the car, and determining whether the passenger's elevator riding behavior outside the car belongs to the predetermined behavior pattern is as follows: First, remind the passenger not to block the monitoring camera equipment. The monitoring camera equipment acquires images of the waiting hall and the inside and outside of the car, captures the elevator riding behavior of a single passenger without load, and determines whether it belongs to the predetermined behavior pattern.

3. The method for detecting over-volume in an elevator car according to claim 2, characterized in that, The predetermined behavior pattern is a continuous behavior of a single passenger without load who has pre-rides the elevator but does not enter the car, or who first waits for the elevator, then enters and then exits the car, and chooses to continue waiting for the elevator outside the car.

4. The method for detecting over-volume in an elevator car according to claim 1, characterized in that, In step S3, when the elevator activates the full-load direct-drive function mode, it prompts passengers that the over-capacity direct-drive function has been activated.

5. The method for detecting over-volume in an elevator car according to claim 1, characterized in that, In step S4, when the elevator is in full-load direct-drive mode, the indicator light outside the control hall shows overload or over-limit, the elevator only responds to commands inside the car, and automatically resumes calling commands outside the hall after the elevator has passed.

6. A system for detecting over-volume in an elevator car, used to implement the method for detecting over-volume in an elevator car as described in any one of claims 1 to 5, characterized in that, include: The video monitoring unit inside and outside the elevator car is used to acquire images of the waiting hall and the inside and outside of the elevator car; The video analysis and processing unit is used to determine, based on the images of the waiting hall and the images inside and outside the car, whether the passenger's behavior outside the car belongs to a predetermined behavior pattern. The predetermined behavior pattern is the behavior of the passenger after judging that the available volume inside the car is exceeded. The elevator control unit is used to determine whether the elevator is in a state of being overloaded but exceeding its capacity. If the video analysis and processing unit determines the predetermined behavior mode twice in a row, it determines that the elevator is in a state of being overloaded but exceeding its capacity, calls the elevator full-load direct-drive function mode, and automatically exits the elevator full-load direct-drive function mode after running to the floor of the call command in the car.

7. The system for detecting over-volume in elevator cars according to claim 6, characterized in that, The video monitoring unit inside and outside the car includes: Elevator lobby surveillance cameras are used to acquire images of the elevator lobby and capture passengers' waiting behavior. The elevator car's internal and external monitoring camera equipment is used to acquire images inside and outside the elevator car and capture the elevator riding behavior of a single passenger without load.

8. The system for detecting over-volume in elevator cars according to claim 7, characterized in that, The system also includes a voice broadcast unit, which is used to indicate that the elevator's overcapacity direct-drive function has been activated and to remind passengers not to obstruct the monitoring camera equipment.

9. The system for detecting over-volume in an elevator car according to claim 6, characterized in that, The system also includes a light curtain device to assist the video analysis and processing unit in determining whether a passenger has entered and then exited the elevator car.

10. The system for detecting over-volume in an elevator car according to claim 6, characterized in that, The video analysis and processing unit has a predetermined behavior pattern model, which is used to enhance its judgment ability through training and learning.

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