A method, device, and storage medium for detecting an operating state
By installing multi-antenna wireless sensors on elevator car doors and landing doors, and cross-transmitting and receiving signals to generate and match feature information, the problems of small elevator detection range and privacy risks are solved, and safe and accurate car door status detection is achieved.
Patent Information
- Application Number
- CN202310185531.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-01
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2043-03-01
AI Technical Summary
Existing elevator car door inspection solutions suffer from problems such as limited detection range, high safety risks, and privacy concerns, especially in the difficulty of effectively detecting situations such as passengers sticking their feet out or pets being on leashes.
Wireless sensors are installed on the elevator car doors and the landing doors on each floor. Each sensor is equipped with multiple antennas. By transmitting and receiving wireless signals in a cross manner, feature information is generated and combined, and matched with preset reference feature information to determine the operating status of the elevator car.
It achieves comprehensive detection coverage, avoids missed detections, ensures elevator safety, protects privacy, reduces computational load and latency, improves detection accuracy, and reduces the impact of narrow field of view and unstable lighting.
Smart Images

Figure CN116062580B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of elevators, and in particular to a running state detection method, device, equipment and storage medium. BACKGROUND
[0002] With the acceleration of urbanization, elevators, as public equipment of residential buildings, office buildings and the like, are widely popularized, and people are increasingly dependent on using elevators. For high-rise buildings, elevators are one of the commonly used equipment.
[0003] In order to improve the safety of using elevators and prevent the situation of pinching passengers, the existing scheme is to set infrared sensors on both sides of the car door. The infrared sensor on one side emits infrared rays, and the infrared sensor on the other side receives infrared rays. When the infrared rays are interrupted, the elevator is controlled to remain open or open in the opposite direction.
[0004] The detection range of a single infrared sensor is a straight line. Since the number of infrared sensors is limited, the detection range of the infrared sensor is small. For the situation that the passenger stretches his foot to the car door, the pet rope and the like, it may be missed and there is a safety risk.
[0005] Therefore, part of the scheme uses a camera in the car to collect image data of the car door, and performs semantic analysis on the image data to check whether there is an obstacle between the car doors.
[0006] However, the image data may involve the privacy information of the passenger, the processing amount of the semantic analysis is large, the delay is high, and the accuracy of the semantic analysis is easily affected by factors such as narrow field of view, transparent object and unstable lighting. SUMMARY
[0007] The present application provides a running state detection method, device, equipment and storage medium to solve the problem of how to detect the running state of the car of the elevator while considering privacy, timeliness and comprehensiveness.
[0008] According to an aspect of the present application, a running state detection method is provided. At least one wireless sensor is installed on the car door of the elevator, and at least one wireless sensor is installed in the landing door of each floor. Each wireless sensor is configured with a plurality of antennas. The method comprises:
[0009] When the car is parked at the floor, a plurality of detection periods are determined;
[0010] In the same detection period, the wireless sensor is sequentially set as a first target sensor, and the wireless sensor other than the first target sensor is set as a second target sensor;
[0011] driving the first target sensor to sequentially use the antennas to emit wireless signals, and generating first characteristic information of the car door and the first target sensor;
[0012] driving the second target sensor to simultaneously use multiple antennas to receive each frame of the wireless signals, and generating second characteristic information of the car door and the second target sensor;
[0013] combining the first characteristic information and the second characteristic information in the same detection period into third characteristic information;
[0014] matching the third characteristic information with preset reference characteristic information, the reference characteristic information being previously collected for a car of an elevator in a specified operating state;
[0015] if the matching is successful, determining that the car of the elevator is in the operating state associated with the reference characteristic information.
[0016] According to another aspect of the present application, there is provided a detection device for an operating state, at least one wireless sensor being installed on a car door of an elevator, and at least one wireless sensor being installed in a landing door of each floor, multiple antennas being configured in each wireless sensor, the device comprising:
[0017] a detection period determination module configured to determine multiple detection periods when the car is parked at the floor;
[0018] a target sensor setting module configured to sequentially set the wireless sensors as a first target sensor and other wireless sensors except the first target sensor as a second target sensor in the same detection period;
[0019] a signal emission control module configured to drive the first target sensor to sequentially use the antennas to emit wireless signals, and generate first characteristic information of the car door and the first target sensor;
[0020] a signal reception control module configured to drive the second target sensor to simultaneously use multiple antennas to receive each frame of the wireless signals, and generate second characteristic information of the car door and the second target sensor;
[0021] a characteristic information combination module configured to combine the first characteristic information and the second characteristic information in the same detection period into third characteristic information;
[0022] a characteristic information matching module configured to match the third characteristic information with preset reference characteristic information, the reference characteristic information being previously collected for a car of an elevator in a specified operating state;
[0023] The running state determination module is configured to determine that the car of the elevator is in the running state associated with the reference feature information if the matching is successful.
[0024] According to another aspect of the present application, an electronic device is provided, the electronic device comprising:
[0025] at least one processor; and
[0026] a memory connected with the at least one processor; wherein,
[0027] The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to perform the method for detecting the running state according to any one of the embodiments of the present application.
[0028] According to another aspect of the present application, a computer readable storage medium is provided, the computer readable storage medium stores a computer program, and the computer program is used to enable a processor to implement the method for detecting the running state according to any one of the embodiments of the present application when executed by the processor.
[0029] In the embodiment, at least one wireless sensor is installed on the car door of the elevator, at least one wireless sensor is installed in the landing door of each floor, and a plurality of antennas are configured in each wireless sensor. When the car stops at a floor, a plurality of detection periods are determined. In the same detection period, the wireless sensor is sequentially set as a first target sensor, and the other wireless sensors except the first target sensor are set as second target sensors. The first target sensor is driven to sequentially use the antennas to emit wireless signals, and the first feature information of the car door and the first target sensor is generated. The second target sensor is driven to simultaneously use the plurality of antennas to receive each frame of wireless signal, and the second feature information of the car door and the second target sensor is generated. The first feature information and the second feature information in the same detection period are combined into third feature information. The third feature information is matched with the preset reference feature information, and the reference feature information is collected in advance for the car of the elevator in a specified running state. If the matching is successful, it is determined that the car of the elevator is in the running state associated with the reference feature information. The wireless sensor is installed on the car door and the landing door, and is convenient to arrange. When the car stops at a floor, the range near the car door can be covered by at least two wireless sensors in combination, the comprehensiveness of detection is ensured, the occurrence of missed detection is avoided, the safety of taking the elevator is ensured, and the wireless sensor relies on wireless signals for detection and does not involve the privacy information of the elevator taker. The amount of calculation is small, the delay is low, the influence of factors such as narrow field of view, transparent object and unstable lighting is effectively reduced, and the accuracy of detection can be ensured.
[0030] It is to be understood that the details set forth herein do not limit the scope of the embodiments of the application to the specific embodiments described. Rather, the scope of the embodiments of the application is to be defined by the appended claims. BRIEF DESCRIPTION OF DRAWINGS
[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor based on these drawings.
[0032] Figure 1 is a flow chart of a running state detection method according to the first embodiment of the present application;
[0033] Figure 2 is a structural example diagram of a wireless sensor according to the first embodiment of the present application;
[0034] Figure 3 is a schematic diagram of arranging a wireless sensor according to the first embodiment of the present application;
[0035] Figure 4 is Figure 3 is a partial enlarged view of arranging a wireless sensor at a car door in the first embodiment of the present application;
[0036] Figure 5 is Figure 3 is a partial enlarged view of arranging a wireless sensor at a landing door in the first embodiment of the present application;
[0037] Figure 6 is a structural schematic diagram of a running state detection device according to the second embodiment of the present application;
[0038] Figure 7 is a structural schematic diagram of an electronic device according to the third embodiment of the present application. DETAILED DESCRIPTION
[0039] In order to make the technical personnel in the art better understand the present application scheme, the following will combine the drawings in the embodiments of the present application, and the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only some embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.
[0040] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and the above-described accompanying drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or apparatus including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products, or apparatuses.
[0041] Embodiment one
[0042] Figure 1 A flowchart of a method for detecting a running state provided by the first embodiment of the present application, the present embodiment can be applicable to the case of detecting the running state of the car of the elevator using wireless sensors, and the method can be executed by a running state detection device, which can be realized in the form of hardware and / or software, and can be configured in an electronic device. As shown in Figure 1 , the method comprises:
[0043] Step 101, when the car stops at a floor, a plurality of detection periods are determined.
[0044] Step 102, in the same detection period, the wireless sensor is set as the first target sensor, and the wireless sensor other than the first target sensor is set as the second target sensor.
[0045] In different buildings, especially high-rise buildings, there are different transportation needs for people, goods, etc., so different types of elevators can be deployed in the building according to different transportation needs, for example, passenger elevators, freight elevators, sightseeing elevators, etc., and the present embodiment does not limit this.
[0046] In different types of elevators, the structure also has differences.
[0047] In one example, the components of a certain type of elevator include a hoisting machine, a control cabinet, a speed governor, a door opener, a car frame, a car door, a counterweight guide rail, a car guide rail, a guide rail support frame, a traveling cable, a counterweight device, a compensation chain (cable), a landing door, a guide device for the compensation chain (cable), a buffer, etc.
[0048] In some types of elevators, the hoisting machine, the control cabinet, the speed governor, the traveling cable, etc. can be omitted.
[0049] These components can be divided into different sets according to functions, thereby constituting various subsystems supporting the operation of the elevator. The controller of the elevator is connected to the various systems of the elevator through a serial port or a serial clock line (SCL) or the like in a wired manner. The controller monitors and controls the operation of the various subsystems.
[0050] In one example, the system includes a door system, a frequency conversion system, a call system, and a traction system, wherein the door system is used to control the car door, the door of the hall of each floor, the frequency conversion system is used to control the frequency converter, the call system is used to control the logic of the in-call (in-car call elevator) and the out-call (hall call elevator), and the traction system is used to control the sliding of the car in the shaft.
[0051] In the present embodiment, at least one wireless sensor is installed on the car door of the elevator, and at least one wireless sensor is installed in the layer door of each floor, that is, when the car stops at a floor, at least two wireless sensors form a sensor group. The wireless sensors in the sensor group can be used to cross-transmit and receive wireless signals to detect the running state of the car.
[0052] The car door is a door installed on the side wall of the car. In some buildings, the car contains two car doors, which are closed towards the middle of the side wall of the car and opened towards the two sides of the side wall of the car. In some buildings, the car contains one foldable car door, which is closed towards one side of the car and opened towards the other side of the car.
[0053] Generally, the layer door is a door installed in the hall of each floor, and the layer door corresponds to the car door, and the two have the same structure. When the car stops at a floor, the car door and the layer door of the floor are opened and closed synchronously.
[0054] The wireless sensor is a sensor that can generate a wireless signal, which can be a WiFi signal, a 2.4G wireless signal, etc.
[0055] As shown in Figure 2 Each wireless sensor is configured with a plurality of antennas 201, and each antenna 201 can be reused to transmit and receive wireless signals.
[0056] In actual application, the car door of the car has different opening and closing modes and areas, etc. Therefore, the number of wireless sensors and the installation positions of the wireless sensors on the car door and the layer door can be set according to these factors, so that the detection range of the wireless sensor group covers the car door. In addition, there are many electronic components around the car door, which also emit wireless signals and interfere with the wireless sensor. Therefore, the number of antennas in the wireless sensor can be set according to the interference condition to ensure the anti-interference ability of the wireless sensor.
[0057] In one example, as shown in Figure 3 When the car 300 stops at a certain floor, two wireless sensors 320 form a sensor group, both of which are located on the center axis between the two car doors 310 of the car 300, one of which is installed at the top of the car door 310 and the other is installed at the bottom of the landing door. Another wireless sensor 320 is equivalent to being arranged at the bottom of the car door 310. During the opening and closing of the two car doors 310, the two wireless sensors 320 in the sensor group can detect the space between the two car doors 310.
[0058] The wireless sensor 320 is provided with three antennas, and the three antennas have strong anti-interference ability, which can ensure the accuracy of car detection.
[0059] As shown in Figure 4 The wireless sensor 320 installed in the middle of the top of the car door, two of which are directed to the two sides of the car door, and the other is directed downward to the wireless sensor installed in the middle of the bottom of the landing door.
[0060] As shown in Figure 5 The wireless sensor 320 installed in the middle of the bottom of the landing door, two of which are directed to the two sides of the landing door, and the other is directed upward to the wireless sensor installed in the middle of the top of the car door.
[0061] Generally, the number of antennas in each wireless sensor is equal to ensure uniformity of detection. In some designs, such as a car with a foldable car door, the number of antennas between wireless sensors can also be unequal, which is not limited in this embodiment.
[0062] Of course, the above arrangement of the wireless sensor is only an example, and other arrangements of the wireless sensor can be set according to actual conditions when implementing the embodiment of the present application, for example, three wireless sensors are installed in a car with a foldable car door, one of which is arranged at the top of one side of the car door, another is arranged in the middle of the other side of the car door, and the other is arranged at the bottom of the landing door. Each wireless sensor is provided with four strip lines, and the included angle between each antenna is 90°, etc. The present embodiment is not limited in this regard. In addition, in addition to the above arrangement of the wireless sensor, other arrangements of the wireless sensor can also be used by those skilled in the art according to actual needs, and the present embodiment is not limited in this regard.
[0063] During the operation of the elevator, the car is controlled to slide to a certain floor by the call request in the car and the call request in the hall, at which time multiple detection cycles can be set for detection.
[0064] The wireless sensors in all sensor groups are sequentially set as first target sensors in order (e.g. in number order), all antennas in each first target sensor sequentially emit wireless signals, and this process is recorded as a detection period. In each setting of the first target sensor, the wireless sensors in the sensor group other than the first target sensor are set as second target sensors, and all antennas in each second target sensor simultaneously receive each frame of wireless signals emitted by each antenna in the first target sensor.
[0065] For example, as shown in FIG. 3, in a detection period, the wireless sensor 320 installed at the bottom of the landing door is set as the first target sensor, and the wireless sensor 320 installed at the top of the car door 310 is set as the second target sensor. The first target sensor is driven to sequentially emit wireless signals using the antennas, and the second target sensor is driven to simultaneously receive wireless signals using all antennas. Then, the wireless sensor 320 installed at the top of the car door 310 is set as the first target sensor, and the wireless sensor 320 installed at the bottom of the landing door is set as the second target sensor. The first target sensor is driven to sequentially emit wireless signals using the antennas, and the second target sensor is driven to simultaneously receive wireless signals using all antennas. At this time, the current detection period ends, and the next detection period begins, and the process is repeated. Figure 3
[0066] Step 103, the first target sensor is driven to sequentially emit wireless signals using the antennas, and first characteristic information of the car door and the first target sensor is generated.
[0067] In each detection period, for the first target sensor in the current detection period, the first target sensor can be controlled to sequentially emit wireless signals using the antennas in order (e.g. in number order), and at this time, first characteristic information of the car door and the first target sensor can be generated.
[0068] In an embodiment of the present application, considering that the first target sensor continuously emits fixed wireless signals, it is difficult to distinguish the working state (i.e. normal, abnormal) of the first target sensor and the second target sensor if the second target sensor continuously receives fixed wireless signals. In this embodiment, step 103 can include the following steps:
[0069] Step 1031, the first target sensor is set with an original angle and an original amplitude coefficient.
[0070] In this embodiment, the first target sensor in the current detection period can be set with an original angle and an original amplitude coefficient according to certain rules.
[0071] Step 1032, respectively adjust the original angle to the target angle, and adjust the original amplitude coefficient to the target amplitude coefficient.
[0072] In this embodiment, the mapping relationship can be set according to the characteristics of the current elevator, and the original angle is adjusted to the target angle and the original amplitude coefficient is adjusted to the target amplitude coefficient according to the mapping relationship.
[0073] In one mapping manner, for a known running state of the car, the distance when the car door is opened can be divided into multiple levels, the distance when the car door is fully opened is divided by the level to obtain a step length, and the step length can represent the detection accuracy, so that the car door is gradually opened and closed according to the step length, and the third feature information in each state is learned in the manner of steps 101-104, which is recorded as reference feature information, and a mapping relationship between the reference feature information and the running state is established.
[0074] For example, if the maximum distance of the car door opening is 2 meters and the level is 10000, the step length is 0.2 millimeters.
[0075] Then, the level divided by the distance of the car door opening can be queried, and the level is valued within a preset range.
[0076] The ratio between the upper limit value of the range and the level is calculated as an adjustment coefficient.
[0077] The original angle is multiplied by the adjustment coefficient to obtain the target angle, and the original amplitude coefficient is multiplied by the adjustment coefficient to obtain the target amplitude coefficient.
[0078] Step 1033, the target angle is substituted into a preset emission function to map the original amplitude.
[0079] In this embodiment, the emission function (such as a sine function, a cosine function, etc.) can be preset, the emission function represents the mapping relationship between the angle and the amplitude, the target angle is taken as the input angle, substituted into the emission function for operation, and the amplitude output by the emission function is recorded as the original amplitude.
[0080] Step 1034, the target amplitude coefficient is multiplied by the original amplitude to obtain the first target amplitude.
[0081] In this embodiment, the target amplitude coefficient is multiplied by the original amplitude, and the product between the two is recorded as the first target amplitude.
[0082] Then, the process of adjusting the emission is represented as follows:
[0083] y = (A * m / n) * f (α * m / n)
[0084] Wherein, y is the first target amplitude, A is the original amplitude coefficient, a is the original angle, n is the level of distance division for the opening of the car door, m is the upper limit value of the range of the level, f() is the emission function, 1≤A≤2, 0≤a≤360°, if n∈[1, 10000], then m=100000.
[0085] Step 1035, drive the first target sensor to use the antenna to emit a wireless signal meeting the first target amplitude corresponding to the original angle.
[0086] Phase is the position of a wave at a particular time in its cycle: a scale of whether it is at a peak, trough, or some point in between. Phase describes a measure of the change in a signal waveform, usually in degrees (angular degrees), also known as phase angle. Therefore, in determining the original angle, the first phase can be determined based on the original angle.
[0087] Then, in the case of knowing the phase and the first target amplitude, the first target sensor can be driven to use the antenna to emit a wireless signal meeting the first phase and the first target amplitude.
[0088] If there is an obstacle near the car door, the CSI (Channel State Information) of the wireless signal will change accordingly, so the channel state information of the antenna of the first target sensor emitting the wireless signal can be queried as the first target channel state information as the first feature information, wherein the first target channel state information includes the first target amplitude and / or the first phase, to improve the sensitivity.
[0089] The first target sensor uses the antenna to emit the wireless signal, and the wireless signal does not touch the obstacle, so the first target channel state information is the original CSI, which can be used as a reference for CSI.
[0090] In addition, the first distance of the opening of the car door is recorded as the first feature information, and the first timestamp is recorded as the first feature information.
[0091] Each time the first target sensor is driven to use one of the antennas to emit a wireless signal, a piece of first feature information can be generated, and in a detection period, the number of first feature information is equal to the number of all antennas of all wireless sensors, and in a piece of first feature information, a first target channel state information, a first distance, and a first timestamp are included.
[0092] In one example, as shown in Figure 3 the numbers of the antennas of the wireless sensor 320 installed at the top of the car door 310 are 1, 2, and 3 respectively, and the numbers of the antennas of the wireless sensor 320 installed at the bottom of the layer door are 4, 5, and 6 respectively.
[0093] When the wireless sensor 320 installed at the bottom of the landing door is set as the first target sensor, the first target sensor is driven to emit wireless signals using each antenna, and the following first characteristic information is recorded in a matrix manner:
[0094]
[0095] When the wireless sensor 320 installed at the top of the car door 310 is set as the first target sensor, the first target sensor is driven to emit wireless signals using each antenna, and the following first characteristic information is recorded in a matrix manner:
[0096]
[0097] The above first characteristic information is combined into a matrix:
[0098]
[0099] Wherein, F represents the first target channel state information, the subscript of F represents the number of the antenna, L represents the first distance, and T represents the first time stamp.
[0100] Step 104, the second target sensor is driven to simultaneously receive each frame of wireless signals using multiple antennas, and the second characteristic information of the car door and the second target sensor is generated.
[0101] When the first target sensor emits wireless signals using a certain antenna, the second target sensor can be driven to simultaneously receive the frame of wireless signals using multiple antennas, and at this time, the second characteristic information of the car door and the second target sensor can be generated.
[0102] In a specific implementation, if there is an obstacle near the car door, the CSI of the antenna receiving wireless signals in the second target sensor will change accordingly, and therefore, the channel state information of the antenna receiving wireless signals in the second target sensor can be detected, denoted as the second target channel state information, as the second characteristic information, wherein the second target channel state information includes the second target amplitude and / or the second phase, so as to improve the sensitivity.
[0103] The second target sensor receives wireless signals using an antenna, and the wireless signals may touch the obstacle, and therefore, the second characteristic information is the CSI of the target, which can be used as a comparison of the CSI.
[0104] In addition, the second distance of the opening of the car door is recorded as the second characteristic information, and the second time stamp is recorded as the second characteristic information.
[0105] Each second target sensor uses all antennas to receive wireless signals, that is, a second characteristic information is generated, and the number of second characteristic information in a detection period is equal to the number of all antennas of all wireless sensors, and in a second characteristic information, a plurality of second target channel state information, a first distance, and a first timestamp are included, and the number of second target channel state information is equal to the number of antennas in the first target sensor.
[0106] In one example, as shown in FIG. 3, the numbers of antennas of the wireless sensor 320 installed at the top of the car door 310 are 1, 2, and 3, respectively, and the numbers of antennas of the wireless sensor 320 installed at the bottom of the landing door are 4, 5, and 6, respectively. Figure 3
[0107] When the wireless sensor 320 installed at the top of the car door 310 is set as the second target sensor, the second target sensor uses all antennas to receive wireless signals, and the following second characteristic information is recorded in a matrix manner:
[0108]
[0109] When the wireless sensor 320 installed at the bottom of the landing door is set as the first target sensor, the second target sensor uses all antennas to receive wireless signals, and the following second characteristic information is recorded in a matrix manner:
[0110]
[0111] The above second characteristic information is combined into a matrix as follows:
[0112]
[0113] Wherein, R represents the second target channel state information, the first number in the subscript of R represents the number of the antenna receiving the wireless signal, the second number represents the number of the antenna transmitting the wireless signal, L represents the second distance, and T represents the second timestamp.
[0114] Step 105, combining the first characteristic information and the second characteristic information in the detection period into third characteristic information.
[0115] Because the detection period is short, the running state of the car in the detection period is relatively stable, and the first characteristic information and the second characteristic information represent the running state at different angles, so the first characteristic information and the second characteristic information in the detection period can be combined into new characteristics, which are recorded as third characteristic information.
[0116] In one embodiment of the present invention, the first feature information includes the first target channel state information of the first target sensor, the first distance of the car door opening, and the first timestamp; the second feature information includes the second target channel state information of the second target sensor, the second distance of the car door opening, and the second timestamp. Therefore, in this embodiment, step 105 may include the following steps:
[0117] Step 1051: Compare the first timestamp with the second timestamp.
[0118] Step 1052: If the first timestamp and the second timestamp are within the preset error range, then generate the third distance based on the first distance and the second distance.
[0119] The wireless sensors are all deployed within the area of the car door. Therefore, the distance between the first target sensor and the second target sensor is relatively short. After the first target sensor transmits a wireless signal, the second target sensor can quickly receive the wireless signal. Therefore, the first timestamp and the second timestamp can be compared. If the first timestamp and the second timestamp are within the preset error range, it means that the first timestamp and the second timestamp are the same. Then, a third distance can be generated based on the first distance and the second distance. The third distance can represent the distance the car door opens between the time the first target sensor transmits the wireless signal and the time the second target sensor receives the wireless signal.
[0120] For example, the maximum or minimum of the first and second distances can be set as the third distance, and the average of the first and second distances can be calculated as the third distance, and so on.
[0121] Step 1053: Combine the first target channel state information, the second target channel state information, and the third distance in the detection period into the third feature information.
[0122] If the first timestamp and the second timestamp are the same, then the first timestamp and the second timestamp can be omitted, and the first target channel state information, the second target channel state information and the third distance can be packaged and combined into the third feature information.
[0123] For example, such as Figure 3 As shown, the antennas of the wireless sensor 320 installed on the top of the car door 310 are numbered 1, 2, and 3, respectively, and the antennas of the wireless sensor 320 installed on the bottom of the landing door are numbered 4, 5, and 6, respectively.
[0124] In one detection cycle, the first feature information is generated as follows:
[0125]
[0126] In one detection cycle, the second feature information is generated as follows:
[0127]
[0128] The first feature information and the second feature information are merged into third feature information as follows:
[0129]
[0130] Wherein, F represents the first target channel state information, the subscript of F represents the number of the antenna, R represents the second target channel state information, in the subscript of R, the first number represents the number of the antenna receiving the wireless signal, the second number represents the number of the antenna transmitting the wireless signal, L represents the first distance, and T represents the first timestamp.
[0131] In step 106, the third feature information is matched with the preset reference feature information.
[0132] In the embodiment, the reference feature information learned in advance can be read, and the reference feature information is collected in advance for the car of the elevator in the specified operating state, that is, the reference feature information is the feature of the wireless sensor and the car when the car of the elevator is in different operating states.
[0133] For example, the operating state includes at least one of the car running normally, the plane where the car door is located existing various levels of obstacles, and the car not being leveled.
[0134] Wherein, the obstacles can be divided into multiple levels according to factors such as shape and size, for example, large obstacles, small obstacles, and the like.
[0135] When the car is not leveled (that is, the plane in the car is not leveled with the plane of the hall, and when the unleveling is more serious, it can be called a staggered layer), the wireless sensors can detect the beam of the building, the floor and other obstacles, and therefore, the unleveling of the car can be recorded as an operating state, and the function of detection is expanded.
[0136] Generally, the structure of the third feature information is the same as that of the reference feature information, the third feature information can be matched with each reference feature information, and the reference feature information same as or similar to the third feature information is searched.
[0137] In a specific implementation, the reference feature information collected in advance for the car of the elevator in each operating state can be queried, wherein the reference feature information includes first reference channel state information, second reference channel state information and a reference distance, the first reference channel state information includes the phase and / or amplitude of the antenna transmitting the wireless signal in the wireless sensor, the second reference channel state information includes the phase and / or amplitude of the antenna receiving the wireless signal in the wireless sensor, and the reference distance is a distance representing the opening of the car door.
[0138] In one example, the reference characteristic information (using antenna 1 to transmit wireless signals and antenna 4 to receive wireless signals as an example) is as follows:
[0139]
[0140] The distance for the car door to open is divided into n parts, where L1 is the distance for the car door to close, and L... n F represents the maximum distance the car door can open, with equal intervals between any two distances. 1i For the car door at a distance L i The first reference channel state information when antenna 1 transmits radio signals, R 41i For the car door at a distance L i The second reference channel state information when antenna 4 receives the wireless signal transmitted by antenna 1.
[0141] Calculate the first error between the first target channel state information and the first reference channel state information, the second error between the second target channel state information and the second reference channel state information, and the third error between the third distance and the reference distance.
[0142] Furthermore, the first error between the first target channel state information and the first reference channel state information, the second error between the second target channel state information and the second reference channel state information, and the third error between the third distance and the reference distance can be calculated in parallel or sequentially. The calculation stops when any error (i.e., the first error, the second error, or the third error) exceeds a threshold (i.e., the first threshold, the second threshold, or the third threshold).
[0143] If the first error is less than or equal to the preset first threshold, the second error is less than or equal to the preset second threshold, and the third error is less than or equal to the preset third threshold, it indicates that the overall error between the third feature information and the reference feature information is small, and it can be determined that the third feature information and the reference feature information are successfully matched.
[0144] If the first error is greater than the preset first threshold, the second error is greater than the preset second threshold, and / or the third error is greater than the preset third threshold, it indicates that the overall error between the third feature information and the reference feature information is large, and it can be determined that the third feature information and the reference feature information have failed to match.
[0145] Step 107: If the match is successful, it is determined that the elevator car is in the operating state associated with the reference feature information.
[0146] If the third feature information matches a certain reference feature information successfully, it means that the third feature information is the same or similar to the reference feature information, and the car of the elevator is more likely to be in the running state associated with the reference feature information, and subsequent control operations can be performed on the elevator according to the running state.
[0147] If the running state of the car is that the car runs normally, the car door can be continued to be closed.
[0148] If the running state of the car is that there are obstacles of different levels in the plane where the car door is located, different control operations can be selected according to the level of the obstacle, for example, for large obstacles, the closing of the car door can be stopped, for small obstacles, the speed of closing the car door can be reduced, and the like.
[0149] If the running state of the car is that the car is not aligned during leveling (including misleveling), an error is reported to the main control system of the elevator, the car is re-controlled to slide to the leveling, or the passengers in the car are rescued.
[0150] In the embodiment, at least one wireless sensor is installed on the car door of the elevator, at least one wireless sensor is installed in the landing door of each floor, and a plurality of antennas are configured in each wireless sensor. When the car stops at a floor, a plurality of detection periods are determined. In the same detection period, the wireless sensor is set as a first target sensor and the other wireless sensors except the first target sensor are set as second target sensors in turn. The first target sensor is driven to use the antennas to emit wireless signals in turn, and the first feature information of the car door and the first target sensor is generated. The second target sensor is driven to use the plurality of antennas to receive each frame of wireless signal at the same time, and the second feature information of the car door and the second target sensor is generated. The first feature information and the second feature information in the same detection period are combined as the third feature information. The third feature information is matched with the preset reference feature information, and the reference feature information is collected in advance for the car of the elevator in a specified running state. If the matching is successful, it is determined that the car of the elevator is in the running state associated with the reference feature information. The wireless sensor is installed on the car door and the landing door, which is convenient to arrange. When the car stops at the floor, the range near the car door can be covered by at least two wireless sensors combined, ensuring the comprehensiveness of the detection, avoiding the occurrence of missed detection, ensuring the safety of the passengers, and the wireless sensor relies on wireless signal for detection and does not involve the privacy information of the passengers, has less computational complexity, low delay, effectively reduces the influence of factors such as narrow field of view, transparent object and unstable lighting, and can ensure the accuracy of the detection.
[0151] Embodiment two
[0152] Figure 6A structure schematic diagram of a detection device of an operating state is provided for the second embodiment of the present application. At least one wireless sensor is installed on a car door of an elevator, and at least one wireless sensor is installed in a landing door of each floor. As shown in Figure 6 The device comprises:
[0153] A detection period determination module 601 is configured to determine a plurality of detection periods when the car is parked at the floor.
[0154] A target sensor setting module 602 is configured to sequentially set the wireless sensor as a first target sensor and set other wireless sensors except the first target sensor as second target sensors in the same detection period.
[0155] A signal emission control module 603 is configured to drive the first target sensor to sequentially emit wireless signals using the antennas to generate first characteristic information of the car door and the first target sensor.
[0156] A signal reception control module 604 is configured to drive the second target sensor to simultaneously receive each frame of the wireless signal using a plurality of antennas to generate second characteristic information of the car door and the second target sensor.
[0157] A characteristic information combination module 605 is configured to combine the first characteristic information and the second characteristic information in the same detection period as third characteristic information.
[0158] A characteristic information matching module 606 is configured to match the third characteristic information with preset reference characteristic information, which is collected in advance for a car of an elevator in a specified operating state.
[0159] An operating state determination module 607 is configured to determine that the car of the elevator is in the operating state associated with the reference characteristic information if the matching is successful.
[0160] In one embodiment of the present application, one of the wireless sensors is installed in the middle of the top of the car door, and another wireless sensor is installed in the middle of the bottom of the landing door.
[0161] The wireless sensor is provided with three antennas. Two of the antennas of the wireless sensor installed in the middle of the top of the car door are directed to the two sides of the car door, and the other antenna is directed downward. Two of the antennas of the wireless sensor installed in the middle of the bottom of the landing door are directed to the two sides of the landing door, and the other antenna is directed upward.
[0162] In one embodiment of the present application, the signal emission control module 603 comprises:
[0163] An original parameter setting module is configured to set an original angle and an original amplitude coefficient for the first target sensor;
[0164] An original parameter adjustment module is configured to adjust the original angle to a target angle and the original amplitude coefficient to a target amplitude coefficient, respectively;
[0165] An original amplitude mapping module is configured to map the target angle into a preset transmission function to obtain an original amplitude;
[0166] A target amplitude calculation module is configured to multiply the target amplitude coefficient and the original amplitude to obtain a first target amplitude;
[0167] A wireless signal transmission module is configured to drive the first target sensor to use the antenna to transmit the wireless signal satisfying the first phase corresponding to the original angle and the first target amplitude.
[0168] In an embodiment of the present application, the original parameter adjustment module comprises:
[0169] A level query module is configured to query a level divided according to the opening distance of the car door, the level being valued in a preset range;
[0170] An adjustment coefficient calculation module is configured to calculate a ratio between an upper limit value of the range and the level as an adjustment coefficient;
[0171] A target angle calculation module is configured to multiply the original angle and the adjustment coefficient to obtain a target angle;
[0172] A target amplitude coefficient calculation module is configured to multiply the original amplitude coefficient and the adjustment coefficient to obtain a target amplitude coefficient.
[0173] In an embodiment of the present application, the signal transmission control module 603 comprises:
[0174] A first channel state query module is configured to query first target channel state information of the antenna of the first target sensor as first feature information, the first target channel state information comprising a first target amplitude and / or a first phase;
[0175] A first distance recording module is configured to record a first distance of the opening of the car door as first feature information;
[0176] A first timestamp recording module is configured to record a first timestamp as first feature information.
[0177] In an embodiment of the present application, the signal reception control module 604 comprises:
[0178] a second channel state detection module configured to detect second target channel state information of the antenna of the second target sensor as second feature information, the second target channel state information comprising a second target amplitude and / or a second phase;
[0179] a second distance recording module configured to record a second distance of the opening of the car door as second feature information;
[0180] a second timestamp recording module configured to record a second timestamp as second feature information.
[0181] In an embodiment of the present application, the first feature information comprises first target channel state information of the first target sensor, a first distance of the opening of the car door and a first timestamp, and the second feature information comprises second target channel state information of the second target sensor, a second distance of the opening of the car door and a second timestamp.
[0182] The feature information combination module 605 comprises:
[0183] a timestamp comparison module configured to compare the first timestamp with the second timestamp;
[0184] a third distance generation module configured to generate a third distance based on the first distance and the second distance if the first timestamp and the second timestamp are within a preset error range.
[0185] a detection cycle composition module configured to combine the first target channel state information, the second target channel state information and the third distance in the detection cycle as third feature information.
[0186] In an embodiment of the present application, the running state determination module 607 comprises:
[0187] a reference feature information query module configured to query reference feature information of a car of the elevator in each running state, the reference feature information comprising first reference channel state information, second reference channel state information and a reference distance, the running state comprising at least one of normal car running, existence of each level of obstacle in the plane where the car door is located and misalignment of car leveling.
[0188] an error calculation module configured to calculate a first error between the first target channel state information and the first reference channel state information, a second error between the second target channel state information and the second reference channel state information, and a third error between the third distance and the reference distance, respectively.
[0189] The matching success determination module is configured to determine that the third feature information matches the reference feature information successfully if the first error is less than or equal to a preset first threshold, the second error is less than or equal to a preset second threshold, and the third error is less than or equal to a preset third threshold.
[0190] The matching failure determination module is configured to determine that the third feature information fails to match the reference feature information if the first error is greater than a preset first threshold, the second error is greater than a preset second threshold, and / or the third error is greater than a preset third threshold.
[0191] The running state detection device provided by the embodiments of the present application can execute the running state detection method provided by any of the embodiments of the present application, and has the corresponding function modules and beneficial effects of executing the running state detection method.
[0192] Embodiment three
[0193] Figure 7 A structural schematic diagram of an electronic device 10 that can be used to implement embodiments of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptops, desktops, tablets, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular telephones, smart phones, wearable devices (e.g., headsets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not intended to limit the implementations of the present application described and / or claimed in this document.
[0194] As shown in Figure 7 The electronic device 10 includes at least one processor 11, and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11, wherein the memory stores a computer program that can be executed by the at least one processor. The processor 11 can execute various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or loaded from the storage unit 18 into the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.
[0195] A plurality of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunication networks.
[0196] The processor 11 can be various general and / or special purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 performs various methods and processes described above, such as the detection method of the running state.
[0197] In some embodiments, the detection method of the running state can be implemented as a computer program tangibly embodied in a computer readable storage medium, such as the storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded onto the RAM 13 and executed by the processor 11, one or more steps of the detection method of the running state described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to perform the detection method of the running state by any other appropriate means, such as by means of firmware.
[0198] The various implementations of the systems and techniques described above can be realized in digital electronic circuitry, integrated circuitry, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on a chip (SOC), a programmable logic device (PLD), a computer hardware, firmware, software, and / or combinations thereof. These various implementations can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.
[0199] Computer programs for implementing the methods of the present application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer program, when executed, enables the functions / acts specified in the flowcharts and / or block diagrams to be implemented. The computer program can be executed entirely on a machine, partially on a machine, partially on a machine as a standalone software package and partially on a remote machine or entirely on a remote machine or server.
[0200] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. A computer-readable storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. More specific examples of a machine-readable storage medium will include one or more lines of electrical connections, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
[0201] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.
[0202] The systems and techniques described here can be implemented in a computing system that includes a back end component, e.g., as a data server, or that includes a middleware component, e.g., an application server, or that includes a front end component, e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here, or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication, e.g., a communication network. Examples of communication networks include a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.
[0203] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. A server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and VPS service.
[0204] Embodiment Four
[0205] The embodiment of the present application also provides a computer program product, which comprises a computer program, and the computer program implements the running state detection method provided by any embodiment of the present application when executed by a processor.
[0206] The computer program code implementing the application can be written in one or more programming languages or combinations of languages including object oriented languages such as Java, Smalltalk, C++ or conventional procedural programming languages such as "C" or similar programming languages. The program code can execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the latter scenario, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computer (for example, through the Internet using an Internet Service Provider).
[0207] It should be understood that the various forms of flow shown above can be used to reorder, add, or remove steps. For example, the steps recited in the present application can be performed in parallel, in series, or in a different order, as long as the desired results of the technical solutions of the present application can be achieved, which are not limited herein.
[0208] The above detailed description does not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A method of detecting an operating state, characterized by, The method comprises the following steps: installing at least one wireless sensor on the car door of an elevator, and installing at least one wireless sensor in the landing door of each floor, each of the wireless sensors being provided with a plurality of antennas, the method comprising: determining a plurality of detection cycles when the car stops at the floor; in the same detection cycle, sequentially setting the wireless sensor as a first target sensor and setting the wireless sensor other than the first target sensor as a second target sensor; driving the first target sensor to sequentially use the antennas to emit wireless signals, and generating first characteristic information of the car door and the first target sensor; driving the second target sensor to simultaneously use a plurality of antennas to receive each frame of the wireless signal, and generating second characteristic information of the car door and the second target sensor; combining the first characteristic information and the second characteristic information in the same detection cycle into third characteristic information; matching the third characteristic information with preset reference characteristic information, the reference characteristic information being collected in advance for the car of the elevator in a specified operating state; if the matching is successful, it is determined that the car of the elevator is in the operating state associated with the reference characteristic information; one of the wireless sensors is installed in the middle of the top of the car door, and the other wireless sensor is installed in the middle of the bottom of the landing door; 2. The method of claim 1, wherein, the wireless sensor is provided with three antennas, two of the antennas of the wireless sensor installed in the middle of the top of the car door are directed to the two sides of the car door, and the other antenna is directed downward, and two of the antennas of the wireless sensor installed in the middle of the bottom of the landing door are directed to the two sides of the landing door, and the other antenna is directed upward. The driving of the first target sensor to sequentially use the antennas to emit wireless signals comprises: setting an original angle and an original amplitude coefficient for the first target sensor; adjusting the original angle to a target angle and adjusting the original amplitude coefficient to a target amplitude coefficient, respectively; substituting the target angle into a preset emission function to map to an original amplitude; multiplying the target amplitude coefficient and the original amplitude to obtain a first target amplitude; 3. The method of claim 2, wherein, driving the first target sensor to use the antennas to emit the wireless signal satisfying a first phase corresponding to the original angle and the first target amplitude. The adjusting of the original angle to a target angle and the adjusting of the original amplitude coefficient to a target amplitude coefficient, respectively, comprises: inquiring a level divided according to the distance of the opening of the car door, the level taking a value in a preset range; calculating a ratio between the upper limit value of the range and the level as an adjustment coefficient; multiplying the original angle and the adjustment coefficient to obtain a target angle; multiplying the original amplitude coefficient and the adjustment coefficient to obtain a target amplitude coefficient.
4. The method of claim 1, wherein the generation of the first characteristic information of the car door and the first target sensor comprises: querying first target channel state information of the antenna of the first target sensor as first feature information, the first target channel state information including a first target amplitude and / or a first phase; recording a first distance that the car door is opened as first feature information; recording a first timestamp as first feature information; generating second feature information from the car door and the second target sensor, including: detecting second target channel state information of the antenna of the second target sensor as second feature information, the second target channel state information including a second target amplitude and / or a second phase; recording a second distance that the car door is opened as second feature information; recording a second timestamp as second feature information.
5. The method according to any one of claims 1-4, characterized in that, The first feature information includes the first target channel state information of the first target sensor, the first distance that the car door is opened, and the first timestamp, and the second feature information includes the second target channel state information of the second target sensor, the second distance that the car door is opened, and the second timestamp; combining the first feature information and the second feature information in the detection period into third feature information, including: comparing the first timestamp with the second timestamp; if the first timestamp and the second timestamp are within a preset error range, generating a third distance based on the first distance and the second distance; combining the first target channel state information, the second target channel state information, and the third distance in the detection period into third feature information.
6. The method of claim 5, wherein, matching the third feature information with a preset reference feature information, including: querying reference feature information collected in advance from a car of an elevator in each operating state, the reference feature information including first reference channel state information, second reference channel state information, and a reference distance, the operating state including at least one of normal car operation, existence of each level of obstacles in the plane where the car door is located, and misalignment of car leveling; calculating a first error between the first target channel state information and the first reference channel state information, a second error between the second target channel state information and the second reference channel state information, and a third error between the third distance and the reference distance, respectively; if the first error is less than or equal to a preset first threshold value, the second error is less than or equal to a preset second threshold value, and the third error is less than or equal to a preset third threshold value, it is determined that the third feature information and the reference feature information match successfully; if the first error is greater than a preset first threshold value, the second error is greater than a preset second threshold value, and / or the third error is greater than a preset third threshold value, it is determined that the third feature information and the reference feature information match unsuccessfully.
7. A running state detecting device characterized by comprising: installing at least one wireless sensor on a car door of an elevator and at least one wireless sensor in a landing door of each floor, each of the wireless sensors being configured with multiple antennas, the device including: a detection period determination module for determining a plurality of detection periods when the car is parked at the floor; The target sensor setting module is configured to set the wireless sensor as a first target sensor and set other wireless sensors except the first target sensor as second target sensors in the same detection cycle. The signal transmission control module is configured to drive the first target sensor to use the antenna to transmit wireless signals in sequence, and generate first characteristic information of the car door and the first target sensor. The signal reception control module is configured to drive the second target sensor to use multiple antennas to receive each frame of the wireless signal at the same time, and generate second characteristic information of the car door and the second target sensor. The characteristic information combination module is configured to combine the first characteristic information and the second characteristic information in the same detection cycle as third characteristic information. The characteristic information matching module is configured to match the third characteristic information with preset reference characteristic information, and the reference characteristic information is collected in advance for a car of an elevator in a specified operating state. The operating state determination module is configured to determine that the car of the elevator is in the operating state associated with the reference characteristic information if the matching is successful. One of the wireless sensors is installed in the middle of the top of the car door, and the other wireless sensor is installed in the middle of the bottom of the layer door. The wireless sensor is provided with three antennas, two of which are installed in the middle of the top of the car door, and the other one is installed in the middle of the bottom of the layer door.
8. An electronic device, comprising: The electronic device comprises: at least one processor; and a memory connected to the at least one processor in communication; wherein the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor to enable the at least one processor to execute the operating state detection method of any one of claims 1-6.
9. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the operating state detection method of any one of claims 1-6 when executed.
Citation Information
Patent Citations
Methods, apparatus, servers, and systems for object tracking
WO2017180698A1