Elevator operation control method

Abstract

The invention relates to an elevator operation control method, which comprises the following steps that: a motion sensing device is used for collecting elevator motion parameters, and the elevator motion parameter data comprises the following steps of: determining a starting moment and an ending moment of elevator motion according to the motion sensing device, taking a time period from the starting moment to the ending moment as a motion time period, and in the motion time period, determining the starting moment and the ending moment; the motion sensing device outputs X-axis, Y-axis and Z-axis inclination angle data according to a certain frequency, each time of data output of the motion sensing device is a timestamp angle, and integral operation is carried out on all the timestamp angles in the motion time period to obtain the motion angular speed of the elevator in the motion time period; aiming at the described motion state, the running speed and various states of the elevator are managed and controlled in real time; the elevator is controlled to move in real time in a graded and classified mode according to elevator angle, gradient and other state data and elevator safe operation standards.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to a method for controlling elevator operation. Background Art

[0002] With the emergence and rapid development of elevator products, elevators are becoming more and more inseparable from people's daily lives. On the basis of fully ensuring the safety of elevator products, people are paying more and more attention to the comfort of taking elevators. Comfort refers to the degree of satisfaction that passengers feel from the physical and psychological aspects of the objective environment and performance of the elevator. Especially for elevators in high-rise buildings, the higher the floor, the more likely the elevator will shake, and the worse the comfort of riding the elevator.

[0003] Many technologies have been developed to ensure the stability of the elevator lifting process and improve riding comfort, but the existing technologies are all aimed at traditional elevators whose counterweights are made of iron blocks or concrete blocks, and there is a lack of research on the comfort of non-traditional elevators whose counterweights are not made of iron blocks or concrete blocks. Summary of the invention

[0004] Aiming at improving the comfort of non-traditional elevators whose counterweight is not iron or cement blocks, the present invention provides a control method for elevator operation, wherein an energy storage device is used as the counterweight of the elevator, and motion sensing devices are arranged on the elevator car and the counterweight frame. The control method comprises:

[0005] The motion sensing device is used to collect the motion parameters of the elevator, wherein the motion parameter data of the elevator includes: determining the start time and the end time of the elevator motion according to the motion sensing device, the time period from the start time to the end time is the motion time period, and during the motion time period, the motion sensing device outputs the inclination angle data of the X-axis, the Y-axis and the Z-axis at a certain frequency, and each data output of the motion sensing device is a timestamp angle, and performing an integral operation on all the timestamp angles during the motion time period to obtain the motion angular velocity of the elevator during the motion time period;

[0006] According to the described motion state, the running speed and various states of the elevator are managed and controlled in real time;

[0007] According to the elevator angle, inclination and other status data, and in accordance with the elevator safety operation standards, the elevator movement is controlled in real time by grade and classification.

[0008] The beneficial effects of the present invention are:

[0009] The present invention provides a control method for elevator operation, which uses an energy storage device such as a new energy battery pack as the counterweight of the elevator, and sets sensing devices at several key parts of the elevator to sense the spatial three-dimensional velocity, acceleration, inclination and other motion parameters of the key parts, and obtains the accurate (such as 0.1 second level) angular velocity, acceleration and other data of the key parts for the spatial three-dimensional motion state of the key parts. The elevator system collects the real-time motion information obtained by the sensing device, and according to these real-time three-dimensional motion parameter data, in accordance with the preset classification standards for safe and comfortable operation of the equipment, performs real-time feedback control on the elevator device, car movement and other states, so as to achieve the purpose of safe and comfortable operation of the equipment. During the operation process, the elevator system automatically obtains and records the operation data of the entire car process around the clock, analyzes the motion information of the key parts of the elevator in real time, and achieves the purpose of intelligent automatic real-time feedback control through real-time and timely control, thereby improving the comfort of people in the elevator car. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic flow chart of the elevator operation control method provided by the present invention. DETAILED DESCRIPTION

[0011] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0012] refer to Figure 1 The present invention proposes a control method for elevator operation, using an energy storage device as the counterweight of the elevator, and arranging motion sensing devices on the elevator car and the counterweight frame, and the control method includes:

[0013] The motion sensing device is used to collect the motion parameters of the elevator, wherein the motion parameter data of the elevator includes: determining the start time and the end time of the elevator motion according to the motion sensing device, the time period from the start time to the end time is the motion time period, and during the motion time period, the motion sensing device outputs the inclination angle data of the X-axis, the Y-axis and the Z-axis at a certain frequency, and each data output of the motion sensing device is a timestamp angle, and performing an integral operation on all the timestamp angles during the motion time period to obtain the motion angular velocity of the elevator during the motion time period;

[0014] According to the described motion state, the running speed and various states of the elevator are managed and controlled in real time;

[0015] According to the elevator angle, inclination and other status data, and in accordance with the elevator safety operation standards, the elevator movement is controlled in real time by grade and classification.

[0016] Wherein: the motion sensing device includes: a three-axis gyroscope, an angular velocity meter, and a three-axis accelerometer.

[0017] Wherein: before using the three-axis accelerometer, an offset calibration is performed by an offset calibration method, and the offset calibration method includes: placing the three-axis accelerometer horizontally with its front side facing upward, obtaining the outputs of the X-axis, Y-axis and Z-axis of the three-axis accelerometer at this time, and calculating the offset values ​​of the X-axis, Y-axis and Z-axis respectively according to the standard outputs of the X-axis, Y-axis and Z-axis of the initial state of the three-axis accelerometer.

[0018] Specifically, due to the problem of internal manufacturing precision, the three-axis accelerometer will have an offset value from the ideal three-axis accelerometer when it leaves the factory. Under normal circumstances, it does not affect the use. However, since this application needs to measure small-amplitude jitters and shakes of key parts, etc., the three-axis accelerometer must be calibrated for offset value. The three-axis accelerometer is placed horizontally. In addition to being subjected to gravity acceleration, it is not subjected to any other force. The standard output values ​​of the X, Y, and Z axes of the three-axis accelerometer should be (0g, 0g, 1g). If the actual output value is not (0g, 0g, 1g), then the difference between the actual output value of each axis and the standard output value is the offset value, and the offset value is saved for use in subsequent calculations. Specifically, in subsequent calculations, the offset value is subtracted or added according to the actual situation to ensure the accurate calculation of the angle of each elevator movement.

[0019] Wherein: before using the three-axis gyroscope, zero-point calibration is performed through a zero-point calibration method, and the zero-point calibration method includes: placing the three-axis gyroscope still, obtaining the outputs of the X-axis, Y-axis and Z-axis of the three-axis gyroscope at this time, and calculating the offset values ​​of the X-axis, Y-axis and Z-axis according to the standard outputs of the X-axis, Y-axis and Z-axis of the three-axis gyroscope in the stationary state.

[0020] Specifically, the three-axis gyroscope will also cause zero-point deviation due to manufacturing accuracy or material reasons. When the three-axis gyroscope is placed still, the three-axis gyroscope is moving on all axes and has no angular velocity. Therefore, the standard output values ​​of the X, Y, and Z axes of the three-axis gyroscope should be (0,0,0). If the actual output value is not (0,0,0), then the difference between the actual output value and the standard output value of each axis is the offset value, and the offset value is saved for use in subsequent calculations. Specifically, because the three-axis gyroscope has the characteristic of repeated power-on offset value instability, the offset value of the three-axis gyroscope can be obtained by placing it still for 1 second each time it is turned on. The processing unit subtracts or adds the offset value according to the actual situation in subsequent calculations to ensure accurate calculation of the angle of each elevator movement.

[0021] Among them: the power and the power of the motor are adjusted according to the instantaneous acceleration of the car, and the charging speed and power of the energy storage device are adjusted during descent; the motor power is adjusted according to the optimal comfort curve, the total weight of the elevator car and the load, and the load distribution image in the car, and the charging speed and power of the energy storage device during descent are adjusted to make the speed curve, acceleration curve and inclination of each up and down movement of the elevator as consistent as possible.

[0022] Among them: the energy storage device is a new energy battery pack, and the new energy storage includes but is not limited to: lead-acid batteries, lithium manganese oxide batteries, lithium cobalt oxide batteries, lithium iron phosphate batteries, nickel-hydrogen batteries, ternary lithium batteries, graphene batteries, etc.

[0023] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, some simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. A method for controlling elevator operation, characterized in that: An energy storage device is used as the counterweight of an elevator, and motion sensing devices are arranged on the elevator car and the counterweight frame. The control method includes: The motion sensing device is used to collect the motion parameters of the elevator, wherein the motion parameter data of the elevator includes: determining the start time and the end time of the elevator motion according to the motion sensing device, the time period from the start time to the end time is the motion time period, and during the motion time period, the motion sensing device outputs the inclination angle data of the X-axis, the Y-axis and the Z-axis at a certain frequency, and each data output of the motion sensing device is a timestamp angle, and performing an integral operation on all the timestamp angles during the motion time period to obtain the motion angular velocity of the elevator during the motion time period; According to the described motion state, the running speed and various states of the elevator are managed and controlled in real time; According to the elevator angle, inclination and other status data, and in accordance with the elevator safety operation standards, the elevator movement is controlled in real time by grade and classification.

2. The elevator operation control method according to claim 1, wherein: The motion sensing device includes: a three-axis gyroscope, an angular velocity meter, and a three-axis accelerometer.

3. The elevator operation control method according to claim 2, wherein: Before using the three-axis accelerometer, an offset calibration is performed using an offset calibration method, wherein the offset calibration method comprises: placing the three-axis accelerometer horizontally with its front side facing upward, obtaining the outputs of the X-axis, Y-axis, and Z-axis of the three-axis accelerometer at this time, and calculating the offset values ​​of the X-axis, Y-axis, and Z-axis according to the standard outputs of the X-axis, Y-axis, and Z-axis of the three-axis accelerometer in the initial state.

4. The elevator operation control method according to claim 1, wherein: Before using the three-axis gyroscope, a zero-point calibration is performed using a zero-point calibration method, wherein the zero-point calibration method comprises: placing the three-axis gyroscope still, obtaining the outputs of the X-axis, Y-axis and Z-axis of the three-axis gyroscope at this time, and calculating the offset values ​​of the X-axis, Y-axis and Z-axis according to the standard outputs of the X-axis, Y-axis and Z-axis of the three-axis gyroscope in a stationary state.

5. The elevator operation control method according to claim 1, wherein: The power and the power of the motor are adjusted according to the instantaneous acceleration of the car, and the charging speed and power of the energy storage device are adjusted during descent. The motor power is adjusted according to the optimal comfort curve, the total weight of the elevator car and the load, and the load distribution image in the car, and the charging speed and power of the energy storage device are adjusted during descent, so that the speed curve, acceleration curve and inclination of each up and down movement of the elevator are kept as consistent as possible.

6. The elevator operation control method according to claim 1, wherein: The energy storage device is a new energy battery pack.

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