Special servo controller for intelligent three-phase hard fast door

Abstract

The utility model discloses a special servo controller for an intelligent three-phase hard fast door. Comprising a primary power supply circuit, a 24V lithium battery, a DCDC conversion circuit 1, a DCDC conversion circuit 2, a linear voltage stabilization module 2, a Hall signal interface module, a motor driving circuit, a linear voltage stabilization module 1, a power supply isolation module, a current and voltage sampling circuit, a DSP main control circuit, an application interface circuit and a display module interface circuit. According to the utility model, the lithium battery supplies power to control the motor to brake for a user to manually open and close the hard fast door under the condition that the commercial power is cut off, so that the interaction between the user and the controller is realized, the Hall signal of the motor encoder can be analyzed in real time during power failure, the situation that the position information of the hard fast door is lost is avoided, and the user experience is improved. The use stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of servo controllers, in particular to an intelligent three-phase hard fast door special servo controller. Background Art

[0002] The three-phase rigid fast door dedicated servo controller is a controller designed for rigid fast doors. It is suitable for occasions that require high speed and reliability. This controller uses a three-phase motor as a power source, which can realize fast opening and closing of doors and improve production efficiency. Due to its rigid structure, the door body can withstand greater pressure and friction and adapt to various harsh environments. This controller also has intelligent control and safety protection functions, which can automatically detect the state of the door and adopt corresponding control strategies to ensure the normal operation and safety of the door.

[0003] The three-phase rigid fast door dedicated servo controller in the prior art still has some shortcomings during use: in the event of a power outage, the controller cannot control the motor brake, which results in the inability of personnel to manually open and close the rigid fast door in the event of a power outage, and the user cannot interact with the controller, which cannot meet the usage requirements. Based on the above situation, we propose an intelligent three-phase rigid fast door dedicated servo controller. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an intelligent three-phase hard fast door special servo controller.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An intelligent three-phase hard fast door dedicated servo controller, including a primary power supply circuit, a 24V lithium battery, a DCDC conversion circuit 1, a DCDC conversion circuit 2, a linear voltage regulator module 2, a Hall signal interface module, a motor drive circuit, a linear voltage regulator module 1, a power isolation module, a current and voltage sampling circuit, a DSP main control circuit, an application interface circuit and a display module interface circuit;

[0007] The 24V lithium battery is connected to the primary power supply circuit and the DCDC conversion circuit 2, the primary power supply circuit is connected to the DCDC conversion circuit 1 and the linear voltage stabilization module 2, the linear voltage stabilization module 1 is connected to the DCDC conversion circuit 1, the DSP main control circuit and the power isolation module, the DSP main control circuit is connected to the application interface circuit, the motor drive circuit, the display module interface circuit, the Hall signal interface circuit and the current and voltage sampling circuit, the motor drive circuit is connected to the linear voltage stabilization module 2 and the current and voltage sampling circuit, and the primary power supply circuit is electrically connected to a three-phase power supply.

[0008] Preferably, the DCDC conversion circuit 2 and the power isolation module generate a 5V system voltage, and the DCDC conversion circuit 2 includes a DCDC conversion chip U27, pin 1 of the DCDC conversion chip U27 is electrically connected to one end of a capacitor C114 and a 24V isolated power supply, pins 5, 6, 7, 8, 4 of the DCDC conversion chip U27 and the other end of the capacitor C114 are all grounded, pin 2 of the DCDC conversion chip U27 is electrically connected to the cathode of a diode D13, the anode of the diode D13 is grounded, pin 2 of the DCDC conversion chip U27 is also electrically connected to one end of an inductor L12, the other end of the inductor L12 is electrically connected to pin 3 of the DCDC conversion chip U27, the other end of the inductor L12 is electrically connected to one end of a capacitor C79 and one end of a capacitor C105, and the other end of the capacitor C79 and the other end of the capacitor C105 are both grounded.

[0009] Preferably, the power isolation module includes a chip U5, pin 4 of the chip U5 is electrically connected to the positive electrode of the diode D24, the negative electrode of the diode D24 is electrically connected to one end of the capacitor C87, the other end of the capacitor C87 and the pin 3 of the chip U5 are both grounded, the negative electrode of the diode D24 is also electrically connected to a 5V voltage, the pin 2 of the chip U5 is electrically connected to a 5V isolated power supply, the 5V isolated power supply is electrically connected to one end of the capacitor C80, and the other end of the capacitor C80 and the pin 1 of the chip U5 are both electrically connected to the isolated power supply.

[0010] Preferably, the display module interface circuit includes a field effect transistor Q12, a field effect transistor Q13, an interface LED and an indicator light D30.

[0011] Preferably, pin 1 of the field effect transistor Q12 is electrically connected to a 3.3V voltage and one end of a resistor R76, the other end of the resistor R76 is electrically connected to pin 2 of the field effect transistor Q12, pin 2 of the field effect transistor Q12 is also electrically connected to one end of a resistor R200, pin 3 of the field effect transistor Q12 is electrically connected to one end of a resistor R74, and the other end of the resistor R74 is electrically connected to a 5V voltage.

[0012] Preferably, pin 1 of the field effect transistor Q13 is electrically connected to a 3.3V voltage and one end of a resistor R98, the other end of the resistor 98 is electrically connected to pin 2 of the field effect transistor Q13, pin 2 of the field effect transistor Q13 is also electrically connected to one end of a resistor R96, pin 3 of the field effect transistor Q13 is electrically connected to one end of a resistor R75, and the other end of the resistor R75 is electrically connected to a 5V voltage.

[0013] Preferably, one end of the indicator light D30 is electrically connected to a resistor R190, and the resistor R190 and the indicator light D30 form an indicator light circuit, which can be used to observe whether the serial port communication is normal.

[0014] Preferably, a motor encoder is built into the Hall signal interface circuit.

[0015] Compared with the existing technology, the beneficial effects of the utility model are:

[0016] The utility model can control the motor brake with power supplied by the lithium battery when the mains power is cut off so that the user can manually open and close the hard fast door, thereby realizing the interaction between the user and the controller, and can analyze the Hall signal of the motor encoder in real time when the power is cut off, and the position information of the hard fast door will not be lost, thereby improving the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a system block diagram of an intelligent three-phase hard fast door dedicated servo controller proposed by the utility model;

[0018] Figure 2 This is a circuit diagram of a DCDC conversion circuit 2 and a power isolation module of an intelligent three-phase hard fast door dedicated servo controller proposed by the utility model;

[0019] Figure 3 The utility model discloses a circuit diagram of a display module interface circuit of an intelligent three-phase hard fast door special servo controller. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-3 , an intelligent three-phase hard fast door dedicated servo controller, including a primary power supply circuit, a 24V lithium battery, a DCDC conversion circuit 1, a DCDC conversion circuit 2, a linear voltage regulator module 2, a Hall signal interface module, a motor drive circuit, a linear voltage regulator module 1, a power isolation module, a current and voltage sampling circuit, a DSP main control circuit, an application interface circuit and a display module interface circuit, wherein a motor encoder decoding circuit is built in the Hall signal interface circuit;

[0022] The 24V lithium battery is connected to the primary power supply circuit and the DCDC conversion circuit 2, the primary power supply circuit is connected to the DCDC conversion circuit 1 and the linear voltage regulator module 2, the linear voltage regulator module 1 is connected to the DCDC conversion circuit 1, the DSP main control circuit and the power isolation module, the DSP main control circuit is connected to the application interface circuit, the motor drive circuit, the display module interface circuit, the Hall signal interface circuit and the current and voltage sampling circuit, the motor drive circuit is connected to the linear voltage regulator module 2 and the current and voltage sampling circuit, and the primary power supply circuit is electrically connected to a three-phase power supply; wherein the DSP main control module circuit is powered by 3.3V, so the I2C signal on the display module interface circuit needs to be firstly level-converted and then transmitted to the DSP main control chip, taking the clock line SCL as an example, the field effect tube Q12 and the resistor R74, the resistor R76 and the resistor R200 together form a level conversion circuit, and the 5V level signal on the clock line is converted into a 3.3V level signal, thereby realizing the I2C communication between the DSP main control circuit and the display module;

[0023] Wherein the DCDC conversion circuit 2 and the power isolation module generate a 5V system voltage, the DCDC conversion circuit 2 includes a DCDC conversion chip U27, pin 1 of the DCDC conversion chip U27 is electrically connected to one end of the capacitor C114 and a 24V isolated power supply, pins 5, 6, 7, 8, 4 of the DCDC conversion chip U27 and the other end of the capacitor C114 are all grounded, pin 2 of the DCDC conversion chip U27 is electrically connected to the cathode of the diode D13, the anode of the diode D13 is grounded, pin 2 of the DCDC conversion chip U27 is also electrically connected to one end of the inductor L12, the other end of the inductor L12 is electrically connected to pin 3 of the DCDC conversion chip U27, the other end of the inductor L12 is electrically connected to one end of the capacitor C79 and one end of the capacitor C105, the other end of the capacitor C79 and the other end of the capacitor C105 are both grounded;

[0024] The power isolation module includes a chip U5, wherein pin 4 of the chip U5 is electrically connected to the positive electrode of a diode D24, the negative electrode of the diode D24 is electrically connected to one end of a capacitor C87, the other end of the capacitor C87 and pin 3 of the chip U5 are both grounded, the negative electrode of the diode D24 is also electrically connected to a 5V voltage, pin 2 of the chip U5 is electrically connected to a 5V isolated power supply, the 5V isolated power supply is electrically connected to one end of a capacitor C80, and the other end of the capacitor C80 and pin 1 of the chip U5 are both electrically connected to the isolated power supply;

[0025] The display module interface circuit includes a field effect tube Q12, a field effect tube Q13, an interface LED and an indicator light D30. Pin 1 of the field effect tube Q12 is electrically connected to a 3.3V voltage and one end of a resistor R76. The other end of the resistor R76 is electrically connected to pin 2 of the field effect tube Q12. Pin 2 of the field effect tube Q12 is also electrically connected to one end of a resistor R200. Pin 3 of the field effect tube Q12 is electrically connected to one end of a resistor R74. The other end of the resistor R74 is electrically connected to a 5V voltage. Pin 1 of the field effect tube Q13 is electrically connected to a 3.3V voltage and one end of a resistor R98. The other end of the resistor 98 is electrically connected to pin 2 of the field effect tube Q13. Pin 2 of the field effect transistor Q13 is also electrically connected to one end of the resistor R96, pin 3 of the field effect transistor Q13 is electrically connected to one end of the resistor R75, and the other end of the resistor R75 is electrically connected to a 5V voltage; one end of the indicator light D30 is electrically connected to the resistor R190, and the resistor R190 and the indicator light D30 form an indicator light circuit, which can be used to observe whether the serial port communication is normal; the utility model can allow the user to manually open and close the hard fast door in the case of power failure, and can control the motor brake at the same time, thereby realizing the interaction between the user and the controller, and can analyze the Hall signal of the motor encoder in real time when the power is off, and the position information of the hard fast door will not be lost, thereby improving the stability of use.

[0026] Working principle: When in use, the three-phase power supply is converted by the primary power supply circuit to output 24V system power supply and 24V isolated power supply; the 24V lithium battery power supply outputs 15V power supply to power the motor drive circuit after passing through the linear voltage regulator module 2; the 24V lithium battery power supply outputs 5V power supply through the DCDC conversion circuit 1 and then outputs 3.3V power supply through the linear voltage regulator module 1. The 3.3V power supply will power the DSP main control circuit. The DSP main control circuit outputs SPWM signals to the motor drive circuit. At the same time, the current and voltage sampling circuit is connected to the motor drive circuit for sampling, and the sampling signal will be output to the DSP main control circuit for ADC conversion; the DSP main control circuit realizes the application interface function through the input detection or output control of the IO port, including motor brake control, infrared radar detection, key detection and other application interfaces. At the same time, the display module interface circuit provides UART serial port and I2C interface, and users can interact with the controller through the display module;

[0027] The 24V isolated power supply output by the primary power supply circuit outputs a 5V isolated power supply through the DCDC conversion circuit 2, which will power the Hall signal interface circuit. The motor encoder can be connected to the servo controller through this interface, and the Hall signal of the motor rotation is transmitted to the DSP main control circuit for analysis in real time; when the power supply is normal, the 24V isolated power supply output by the primary power supply charges the 24V lithium battery. When the power is off, the lithium battery will output a 24V voltage to the DCDC conversion circuit 2 to output a 5V isolated power supply, and the 5V isolated power supply will output a 5V voltage to the system through the power isolation module, so that the controller can still control the motor brake in the case of power failure. At this time, the user can manually open and close the hard fast door. At the same time, the motor encoder can still transmit the motor rotation Hall signal in the case of power failure to the DSP main control circuit through the Hall signal interface circuit for analysis, so that manual control and human-computer interaction can still be achieved in the case of power failure;

[0028] When the external power supply is normal, the 24V isolated power supply generated by the primary power supply, namely +24V_ISO, will charge the lithium battery CHARGE; when the external power supply is cut off, it will be powered by the 24V lithium battery, and the isolated 5V power supply, namely ISO_5V, will be generated through the DCDC conversion chip U27, and this power supply will power the Hall signal interface circuit; the ISO_5V isolated power supply will generate a 5V system voltage after passing through the power isolation module U5, and this voltage can power the DSP main control module through the linear voltage regulator module 1, so that when the external power supply is cut off, the user can still interact with the controller and manually raise and lower the motor, and the controller can still analyze the Hall signal of the motor encoder in real time, and the position information of the hard fast door will not be lost;

[0029] In addition, the display module interface circuit is powered by 5V voltage, which is sent to the display module by the DSP main control circuit through the serial port UART_TX pin to control the display interface information of the module. Resistor R190 and indicator light D30 form an indicator light circuit, which can easily observe whether the serial port communication is normal.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent three-phase hard fast door dedicated servo controller, characterized in that: It includes a primary power supply circuit, a 24V lithium battery, a DCDC conversion circuit 1, a DCDC conversion circuit 2, a linear voltage regulator module 2, a Hall signal interface module, a motor drive circuit, a linear voltage regulator module 1, a power isolation module, a current and voltage sampling circuit, a DSP main control circuit, an application interface circuit and a display module interface circuit; The 24V lithium battery is connected to the primary power supply circuit and the DCDC conversion circuit 2, the primary power supply circuit is connected to the DCDC conversion circuit 1 and the linear voltage stabilization module 2, the linear voltage stabilization module 1 is connected to the DCDC conversion circuit 1, the DSP main control circuit and the power isolation module, the DSP main control circuit is connected to the application interface circuit, the motor drive circuit, the display module interface circuit, the Hall signal interface circuit and the current and voltage sampling circuit, the motor drive circuit is connected to the linear voltage stabilization module 2 and the current and voltage sampling circuit, and the primary power supply circuit is electrically connected to a three-phase power supply.

2. The intelligent three-phase hard fast door dedicated servo controller according to claim 1 is characterized in that: The DCDC conversion circuit 2 and the power isolation module generate a 5V system voltage. The DCDC conversion circuit 2 includes a DCDC conversion chip U27. Pin 1 of the DCDC conversion chip U27 is electrically connected to one end of a capacitor C114 and a 24V isolated power supply. Pins 5, 6, 7, 8, 4 and the other end of the capacitor C114 of the DCDC conversion chip U27 are all grounded. Pin 2 of the DCDC conversion chip U27 is electrically connected to the cathode of a diode D13, and the anode of the diode D13 is grounded. Pin 2 of the DCDC conversion chip U27 is also electrically connected to one end of an inductor L12, and the other end of the inductor L12 is electrically connected to pin 3 of the DCDC conversion chip U27. The other end of the inductor L12 is electrically connected to one end of a capacitor C79 and one end of a capacitor C105, and the other end of the capacitor C79 and the other end of the capacitor C105 are both grounded.

3. The intelligent three-phase hard fast door dedicated servo controller according to claim 1, characterized in that: The power isolation module includes a chip U5, wherein pin 4 of the chip U5 is electrically connected to the positive electrode of a diode D24, the negative electrode of the diode D24 is electrically connected to one end of a capacitor C87, the other end of the capacitor C87 and pin 3 of the chip U5 are both grounded, the negative electrode of the diode D24 is also electrically connected to a 5V voltage, pin 2 of the chip U5 is electrically connected to a 5V isolated power supply, the 5V isolated power supply is electrically connected to one end of a capacitor C80, and the other end of the capacitor C80 and pin 1 of the chip U5 are both electrically connected to the isolated power supply.

4. The intelligent three-phase hard fast door dedicated servo controller according to claim 1, characterized in that: The display module interface circuit includes a field effect transistor Q12, a field effect transistor Q13, an interface LED and an indicator light D30.

5. The intelligent three-phase hard fast door dedicated servo controller according to claim 4, characterized in that: Pin 1 of the field effect transistor Q12 is electrically connected to a 3.3V voltage and one end of a resistor R76, the other end of the resistor R76 is electrically connected to pin 2 of the field effect transistor Q12, pin 2 of the field effect transistor Q12 is also electrically connected to one end of a resistor R200, pin 3 of the field effect transistor Q12 is electrically connected to one end of a resistor R74, and the other end of the resistor R74 is electrically connected to a 5V voltage.

6. The intelligent three-phase hard fast door dedicated servo controller according to claim 4, characterized in that: Pin 1 of the field effect transistor Q13 is electrically connected to a 3.3V voltage and one end of a resistor R98, the other end of the resistor 98 is electrically connected to pin 2 of the field effect transistor Q13, pin 2 of the field effect transistor Q13 is also electrically connected to one end of a resistor R96, pin 3 of the field effect transistor Q13 is electrically connected to one end of a resistor R75, and the other end of the resistor R75 is electrically connected to a 5V voltage.

7. The intelligent three-phase hard fast door dedicated servo controller according to claim 4, characterized in that: One end of the indicator light D30 is electrically connected to a resistor R190 , and the resistor R190 and the indicator light D30 form an indicator light circuit, which can be used to observe whether the serial port communication is normal.

8. The intelligent three-phase hard fast door dedicated servo controller according to claim 1, characterized in that: The Hall signal interface circuit has a motor encoder decoding circuit built in it.

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