CN105840086A - Automatic rolling shutter door controlling device and method - Google Patents

Abstract

The invention discloses an automatic rolling door control device and a control method thereof. The invention belongs to the technical field of automatic door control. The device includes a power supply module, a protection module, a rectification module, a line current module, a filter module, a line voltage module, a bridge module, a control unit, a three-phase asynchronous motor, a braking circuit module, a reel, and a power output terminal. The method includes setting the parameters of the control device. When the rolling door rises, the control unit controls the three asynchronous motors through the bridge module to drive the rolling door to realize a uniform acceleration-constant speed-uniform deceleration process. The three-phase asynchronous motor drives the rolling door to realize the motion process of uniform acceleration-uniform speed-uniform deceleration; when overload, short circuit, open circuit or lack of phase occurs, the control unit will display an alarm, and the control device will stop working. The device and method of the present invention have the characteristics of simple structure, high working efficiency, small body, low cost and the like, and better meet the needs of the automatic rolling door control system.

Description

Automatic rolling shutter door control device and method

technical field

The invention belongs to the technical field of automatic door control, and in particular relates to a rolling shutter door control system with an automatic speed regulation function.

Background technique

With the continuous development of science and technology, the level of automation is increasing day by day, and automatic rolling doors have also begun to be widely used in various occasions. When the automatic rolling door system is applied in factories and automated production workshops, it can improve the production efficiency of the factory and facilitate the management of personnel in the factory. At the same time, areas such as private residences and community garages have also installed automatic shutter door control systems to achieve convenience. The automatic rolling door can be unmanned after being powered on. When the rolling door needs to be opened, just press the switch to make the door rise slowly. It not only brings convenience to us, but also reduces manpower input.

A literature search of the prior art found that the Chinese invention patent "Control System for Automatic Doors Based on PLC" (Application No. 201310155527.7) discloses a PLC-based automatic rolling door control system. The PLC control system has high reliability and strong anti-interference ability , perfect function, strong applicability, easy maintenance. The Chinese invention patent "An Automatic Garage Door Management System" (Application No. 201510150782.1) discloses a garage automatic door management system, which can identify and park vehicles through the infrared sensor recognition device, without manual operation, and is easy to use. Chinese utility model patent "electronic automatic door control device" (application number 201320761750.1) provides an electronic automatic rolling door control device, which can adjust the opening range and opening time of the automatic door according to different situations. An electronic automatic door control device with dual functions of energy saving and carbon reduction and alleviating crowds entering and leaving in a short period of time. The Chinese invention patent "Automatic Door Intelligent Control System" (application number 201210201157.1) publicizes an automatic door intelligent control system, which applies touch screen technology and external sensing technology to electric door control. PLC is connected to the motor through a frequency converter, and the user The information collected by the signal unit is manually set to achieve the humanized effect of intelligent operation. The Chinese utility model patent "wireless access control for automatic doors" (application number 201320581885.X) relates to a wireless access control for automatic doors.

The automatic rolling door control system mentioned above adopts the structure of PLC, frequency converter and motor, configures the parameters of PLC, and then PLC controls the frequency converter, and the frequency converter adjusts the speed of the motor. Due to the powerful functions of the PLC and the inverter itself, the control functions used in the automatic rolling door control system are only a part of it, and most of the general functions are not fully utilized, resulting in waste of resources; the size of the PLC and the inverter is too large. The volume of the control box of the rolling door is larger; and the unit price of the PLC and the frequency converter is relatively expensive, which increases the cost of the automatic rolling door control system.

To sum up, a controller is designed as the core control device of the automatic rolling door, which has the control functions of PLC and frequency converter for the automatic rolling door. When the PLC and the frequency converter are integrated into a controller to drive the motor to run, the operating efficiency will be significantly improved, the cost will be significantly reduced, and the volume will be significantly reduced.

Contents of the invention

The purpose of the present invention is to solve the above-mentioned problems in the current automatic rolling door control system, to provide an automatic speed-regulating controller for automatic rolling doors, which has the characteristics of low cost, high efficiency, small size, etc., and solves the above-mentioned deficiencies in the background technology, To meet the fast and effective needs of automatic rolling doors.

The present invention is realized through the following technical solutions:

An automatic rolling door controller device system, including power supply module, protection module, rectification module, line current module, filter module, line voltage module, bridge module, control unit, three-phase asynchronous motor, braking circuit module, reel, power output terminals.

The power module is connected to the protection module and the control unit to supply power to the entire system;

The protection module is connected to the rectifier module, the power module and the output terminal of the power supply. The protection module prevents the surge voltage from causing damage to the rectifier module and power module, and automatically disconnects when the system circuit fails and suddenly short-circuits;

The rectification module is connected with a filter module, a protection module, a braking circuit module and an electric bridge module. The rectifier module converts the industrial AC current into a pulsating DC signal;

The line current module connects the control unit and the bridge module. The line current module measures the line current of the three-phase asynchronous motor winding on the bridge module, and transmits it to the control unit;

After the rectification module, the filtering module is connected with the brake circuit module and the electric bridge module. The filtering module smoothes the pulsating DC signal on the bus;

The line voltage module connects the control unit and the bridge module. The line voltage module converts the filtered voltage into an analog signal and transmits it to the control unit, detects the three-phase asynchronous line voltage and transmits it to the control unit;

The electric bridge module is connected with a rectification module, a braking circuit module, a line voltage module, a line current module and a three-phase asynchronous motor. The control unit controls the bridge to invert the filtered DC signal into a control signal with variable frequency. The square wave signal is supplied to the three-phase asynchronous motor to drive the reel to rotate. The DC signal forms a loop through the ground wire.

The control unit is connected with a power supply module, a line current module, a line voltage module, a three-phase asynchronous motor and a braking circuit module. The control unit includes: a microprocessor, an analog signal preprocessing module, a key module, and a digital tube module. in:

The analog signal preprocessing module is connected to the line voltage module, the line current module and the microprocessor. The sampled analog signal is conditioned and passed to the microprocessor.

The key module is connected with the microprocessor. The ascending height limit value, descending height limit value, ascending speed, descending speed and other parameter values set by the key device are transmitted to the microprocessor.

The digital tube module is connected to the microprocessor. The microprocessor controls the digital display voltage value and current value. Current speed and other parameters.

The microprocessor is connected with an analog signal preprocessing module, a button module, a power supply module, an electric bridge module and a digital tube module. The microprocessor displays the collected speed, height and other parameters on the digital tube.

The brake circuit module is connected with the bridge module and the rectification module. When the motor brakes, in order to prevent the motor from reversing and generate reverse electromotive force, the brake circuit module needs to work to stop the motor quickly.

The automatic rolling door control method that the present invention relates to, comprises the following steps:

The first step is to install the reel on the door frame of the fixed rolling door, and connect the three-phase asynchronous motor and the reel;

In the second step, the three-phase asynchronous motor is connected to the output terminal of the on-site industrial power supply, and the power is turned on;

The third step is to manually set the lifting height of the automatic rolling door, the speed during the lifting process, the acceleration of the lifting process and other parameters according to the actual needs of the site, as well as the bus voltage, bus current, three-phase asynchronous motor line voltage, three-phase asynchronous motor line Threshold parameters such as current;

In the fourth step, the rectifier module outputs the corresponding pulsating DC signal, and the filter module smoothes the pulsating DC signal on the bus;

In the fifth step, the microprocessor outputs a control signal to the bridge module according to the configuration parameters; the bridge module inverts the smoothed DC signal into a frequency-changing control signal, and the control signal is transmitted to the three-phase asynchronous motor, and the motor generates start turning;

The sixth step, the line voltage module detects the filtered bus voltage and the line voltage of the three-phase asynchronous motor winding, converts the voltage signal into an analog signal and sends it to the control unit; the line current module detects the current on the bus and the three-phase asynchronous motor The line current of the winding converts the current signal into an analog signal and transmits it to the control unit; the control unit displays the received voltage and current signals on the digital tube module;

In the seventh step, the three-phase asynchronous motor drives the connected reel to start running. According to the set speed mode, the automatic rolling door starts to rise, and the automatic rolling door experiences a uniform acceleration-uniform speed-uniform deceleration motion during the rising process process, and finally stop at the set height;

The eighth step, when the user finishes using it, the automatic rolling door will also go through the process of uniform acceleration-uniform speed-uniform deceleration according to the previously set descending speed mode, and finally stop;

For some reason, when the three-phase asynchronous motor has a phase loss or overvoltage fault, the control unit will detect that the bus voltage and the line voltage of the three-phase asynchronous motor winding exceed the corresponding threshold, turn off the bridge module and switch on the digital tube module Prompt fault, play a role in protecting the motor;

For some reason, when the three-phase asynchronous motor has an overload or overcurrent fault, the control unit will detect that the bus current and the line current of the three-phase asynchronous motor winding exceed the corresponding threshold, turn off the bridge module and prompt on the digital tube module Fault, play a role in protecting the motor;

When the rolling shutter door stops suddenly or when the upward or downward movement ends, the winding of the three-phase asynchronous motor will generate a reverse electromotive force, and the control unit will open the brake circuit module to release the reverse electromotive force to protect the bridge module.

Description of drawings

Fig. 1 is a schematic diagram of the system structure principle of the present invention.

Fig. 2 is a schematic structural diagram of the control unit of the present invention.

detailed description

Preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution, and detailed implementation methods and processes are provided, but the protection scope of the present invention is not limited to the following implementation example.

Embodiment one:

Referring to Fig. 1, the device system combined with PLC frequency converter includes a power supply module 8, a protection module 2, a rectification module 3, a line current module 6, a filter module 4, a line voltage module 5, a bridge module 7, a control unit 9, three Phase asynchronous motor 10, brake circuit module 11, reel 12, on-site industrial power supply output terminal 1.

The power module 8 is connected to the protection module 2 and the control unit 9, and the protection module 2 is also connected to the rectifier module 3, the power module 8 and the power output terminal 1;

The rectification module 3 is connected with the filter module 4 , the protection module 2 , the brake circuit module 11 and the bridge module 7 . The line current module 6 is also connected to the bridge module 7 and the control unit 9;

The filter module is also connected to the rectifier module 3, the brake circuit module 11 and the bridge module 7;

The line voltage module 5 is also connected to the bridge module 7 and the control unit 9;

The bridge module 7 is also connected to the rectifier module 3, the brake circuit module 11, the line voltage module 5, the line current module 6, and the three-phase asynchronous motor 10;

The control unit 9 is also connected to a power module 8 , a line current module 6 , a line voltage module 5 , a three-phase asynchronous motor 10 and a braking circuit module 11 ; the braking circuit 11 module is connected to the bridge module 7 and the control unit 9 .

Embodiment two:

As shown in Figure 1, the PLC inverter device described in this embodiment includes: on-site industrial power output terminal 1, protection module 2, rectification module 3, filter module 4, line voltage module 5, line current module 6, electric bridge Module 7, power supply module 8, control unit 9, three-phase asynchronous motor 10, brake circuit module 11, reel 12, bus bar 13, ground wire 14;

The protection module 2 is connected to the rectification module 3 , the power supply module 8 and the output terminal 1 of the on-site industrial power supply. The protection module 2 prevents the surge voltage from causing damage to the rectifier module 3 and the power module 8, and automatically disconnects when the system circuit fails and suddenly short-circuits.

The rectification module 3 is connected with the filter module 4 , the protection module 2 , the brake circuit module 11 and the bridge module 7 . The rectification module 3 converts the industrial AC current into a pulsating DC signal; in this embodiment, the rectification module is WMY-DZ-WY-50 of Shandong Zibo Wanlianda Electronic Technology Co., Ltd.

The filter module 5 is connected to the brake circuit module 11 and the bridge module 7 after the rectification module 3 . The filter module 5 smoothes the pulsating DC signal on the bus 13;

The line voltage module 5 is connected to the bridge module 7 and the control unit 9 . The line voltage module 5 converts the filtered voltage into an analog signal and transmits it to the control unit 9, detects the line voltage of the three-phase asynchronous motor 10 on the bridge module 7 and transmits it to the control unit 9;

The bridge module 7 is connected to the rectification module 3 , the braking circuit module 11 , the line voltage module 5 , the line current module 6 , and the three-phase asynchronous motor 10 . The control unit 9 controls the bridge 7 to invert the filtered DC signal into a control signal with variable frequency. The square wave signal is supplied to the three-phase asynchronous motor 10 to drive the reel 12 to rotate. The DC signal forms a loop through the ground wire 14 .

The line current module 6 is connected to the bridge module 7 and the control unit 9 . The line current module 6 measures the line current of the three-phase asynchronous motor winding 10 on the bridge module 7, and transmits it to the control unit 9;

The power supply module 8 is connected to the protection module 2 and the control unit 9 to supply power to the entire system;

The brake circuit module is connected to the bridge module 7 and the rectifier module 3 . After the motor is braked, in order to prevent the motor from reversing and generating reverse electromotive force, the brake circuit module 7 needs to work to stop the motor quickly.

The control unit 9 is also connected to a power supply module 8 , a line current module 6 , a line voltage module 5 , a three-phase asynchronous motor 10 and a brake circuit module 11 . The control unit includes: a microprocessor 15 , an analog signal preprocessing module 16 , a key module 17 , a digital tube module 18 , and a bridge driving module 20 . in:

The analog signal preprocessing module 16 is connected to the line voltage module 5 , the line current module 6 and the microprocessor 15 . The sampled analog signal is conditioned and sent to the microprocessor 15 .

The key module 17 is connected to the microprocessor 15 . The ascending height limit value set by the key device, the descending height limit value, the ascending speed, the parameter values such as descending speed, and pass to the microprocessor 15.

The digital tube module 18 is connected to the microprocessor 15 . The microprocessor controls the digital display voltage value and current value. Current speed and other parameters. In this embodiment, the digital tube is the eight-segment digital tube SM120561.

The microprocessor 15 is connected with an analog signal preprocessing module 16 , a key module 17 , a power module 8 , a bridge module 7 and a digital tube module 18 . The microprocessor 15 displays the collected speed, height and other parameters on the nixie tube 18 . In this embodiment, the microprocessor 15 is a microprocessor STM32F103RBT6 of STMicroelectronics Company.

The method for opening and closing an automatic rolling door according to the present invention comprises the following steps:

The first step is to install the reel 12 on the door frame of the fixed rolling door, and connect the three-phase asynchronous motor 10 and the reel 12;

In the second step, the three-phase asynchronous motor 10 is connected to the on-site industrial power output terminal 1, and the power is turned on;

The third step is to manually set the lifting height of the automatic rolling door, the speed during the lifting process, the acceleration of the lifting process and other parameters according to the actual needs of the site, as well as the bus voltage, bus current, three-phase asynchronous motor line voltage, three-phase asynchronous motor line Threshold parameters such as current;

In the fourth step, the rectification module 3 outputs the corresponding pulsating DC signal, the filter module 4 smoothes the pulsating DC signal on the bus 13, and the DC signal forms a loop through the ground wire 14;

In the fifth step, the microprocessor 15 outputs a control signal to the bridge module 7 according to the configuration parameters; the bridge module 7 inverts the smoothed DC signal into a square wave signal with variable frequency, and the square wave signal is transmitted to the three-phase asynchronous Motor 10, the motor generates a rotating magnetic field and starts running;

In the sixth step, the line voltage module 5 detects the filtered bus voltage and the line voltage of the three-phase asynchronous motor winding, converts the voltage signal into an analog signal and transmits it to the control unit 9; the line current module 6 detects the current on the bus and the three-phase The line current of the phase asynchronous motor winding is converted into an analog signal and transmitted to the control unit 9; the control unit 9 displays the received voltage and current signals on the digital tube module 8;

In the seventh step, the motor 10 drives the connected reel 12 to start running. According to the set speed mode, the automatic rolling door starts to rise. During the rising process, the automatic rolling door experiences a uniform acceleration-constant speed-uniform deceleration process. , and finally stop at the set height;

The eighth step, when the user finishes using it, the automatic rolling door will also go through the process of uniform acceleration-uniform speed-uniform deceleration according to the previously set descending speed mode, and finally stop;

For some reason, when a phase loss or overvoltage fault occurs in the three-phase asynchronous motor 10, the control unit 9 will detect that the bus voltage and the line voltage of the three-phase asynchronous motor winding exceed the corresponding threshold, turn off the bridge module 7 and switch on the digital The fault is indicated on the tube module 8, which plays a role in protecting the motor;

For some reason, when an overload or overcurrent fault occurs in the three-phase asynchronous motor 10, the control unit 9 will detect that the bus current and the line current of the three-phase asynchronous motor winding exceed the corresponding threshold, close the bridge module 7 and display on the digital tube A fault is indicated on the module 9, which plays a role in protecting the motor;

When the rolling shutter door stops suddenly or when the upward or downward movement ends, the winding of the three-phase asynchronous motor 10 will generate back electromotive force, and the control unit 9 opens the brake circuit module 11 to release the back electromotive force to protect the bridge module 7 .

Claims (4)

1. An automatic rolling door controller device system, including power supply module (8), protection module (2), rectification module (3), line current module (6), filter module (4), line voltage module (5), electric Bridge module (7), control unit (9), three-phase asynchronous motor (10), braking circuit module (11), reel (12), on-site industrial power supply output terminal (1), characterized in that: The power module (8) is connected to the protection module (2) and the control unit (9), and the protection module (2) is connected to the rectifier module (3), the power module (8) and the power output terminal (1); The rectification module (3) is connected to the filter module (4), the protection module (2), the brake circuit module (11) and the bridge module (7); The line current module (6) is also connected to the bridge module (7) and the control unit (9); The filter module is also connected to the braking circuit module (11) and the rectification module (3); The line voltage module (5) is also connected to the bridge module (7) and the control unit (9); The bridge module (7) is also connected to a rectifier module (3), a braking circuit module (11), a line voltage module (5), a line current module (6), and a three-phase asynchronous motor (10); The control unit (9) is also connected to a power module (8), a line current module (6), a line voltage module (5), a three-phase asynchronous motor (10) and a braking circuit module (11); The brake circuit (11) module is connected to the bridge module (7) and the rectification module (3). 2. The automatic rolling door controller device system according to claim 1, characterized in that: the control unit includes: a microprocessor (15), an analog signal preprocessing module (16), a key module (17), a digital Tube module (18), bridge drive module (20); The analog signal preprocessing module (16) is connected to the line voltage module (5), the line current module (6) and the microprocessor (15); the button module (17) is connected to the microprocessor (15); The digital tube module (18) is connected to the microprocessor (15); the microprocessor (15) is connected to the analog signal preprocessing module (16), key module (17), power supply module (8), electric bridge module (7), digital tube module (18). 3. The automatic rolling door controller system according to claim 2, characterized in that the microprocessor (15) displays the collected parameters such as speed and height on the digital tube (18). 4. A control method for an automatic rolling door controller device system, which uses the automatic rolling door controller device according to claim 1 to operate, and is characterized in that: comprising the following steps: The first step is to install the reel (12) on the upper door frame of the fixed rolling door, and connect the three-phase asynchronous motor 10 and the reel (12); In the second step, the three-phase asynchronous motor (10) is connected to the on-site industrial power supply output terminal (1), and the power is turned on; The third step is to manually set the lifting height of the automatic rolling door, the speed during the lifting process, the acceleration of the lifting process and other parameters according to the actual needs of the site, as well as the bus voltage, bus current, three-phase asynchronous motor line voltage, three-phase asynchronous motor line Threshold parameters such as current; In the fourth step, the rectification module (3) outputs the corresponding pulsating DC signal, the filter module (4) smoothes the pulsating DC signal on the busbar (13), and the DC signal forms a loop through the ground wire (14); In the fifth step, the microprocessor (15) outputs a control signal to the bridge module (7) according to the configuration parameters; the bridge module (7) inverts the smoothed DC signal into a square wave signal with variable frequency, and the square wave The signal is transmitted to the three-phase asynchronous motor (10), and the motor generates a rotating magnetic field to start running; In the sixth step, the line voltage module 5 detects the filtered bus voltage and the line voltage of the three-phase asynchronous motor winding, converts the voltage signal into an analog signal and transmits it to the control unit 9; the line current module 6 detects the current on the bus and the three-phase The line current of the phase asynchronous motor winding is converted into an analog signal and transmitted to the control unit 9; the control unit 9 displays the received voltage and current signals on the digital tube module 8; In the seventh step, the motor (10) drives the connected reel (12) to start running. According to the set speed mode, the automatic rolling door starts to rise, and the automatic rolling door experiences a uniform acceleration-uniform speed-uniform acceleration during the rising process. The movement process of deceleration finally stops at the set height; The eighth step, when the user finishes using it, the automatic rolling door will also go through the process of uniform acceleration-uniform speed-uniform deceleration according to the previously set descending speed mode, and finally stop; For some reason, when a phase loss or overvoltage fault occurs in the three-phase asynchronous motor 10, the control unit 9 will detect that the bus voltage and the line voltage of the three-phase asynchronous motor winding exceed the corresponding threshold, turn off the bridge module 7 and switch on the digital The fault is indicated on the tube module 8, which plays a role in protecting the motor; For some reason, when an overload or overcurrent fault occurs in the three-phase asynchronous motor 10, the control unit 9 will detect that the bus current and the line current of the three-phase asynchronous motor winding exceed the corresponding threshold, close the bridge module 7 and display on the digital tube A fault is indicated on the module 9, which plays a role in protecting the motor; When the rolling shutter door stops suddenly or when the upward or downward movement ends, the winding of the three-phase asynchronous motor 10 will generate back electromotive force, and the control unit 9 opens the brake circuit module 11 to release the back electromotive force to protect the bridge module 7 .