High-precision double-delay press control system

Abstract

The utility model discloses a high-precision double-delay press control system, which comprises a GD32 control module, a GD32 power supply module, a signal input acquisition module, an active output identification module, a double-delay control display module and a high-precision oscillation clock module, the GD32 power supply module supplies power to the GD32 control module, the signal input acquisition module and the active output identification module; the input signal acquisition module and the active output identification module are respectively connected with the GD32 control module, and the GD32 control module is also connected with the high-precision oscillation clock module and the double-delay control display module. The compressor control device is simple in structure and convenient to use, and can be universally used for compressor control of various refrigerating systems.

Description

Technical Field

[0001] This utility model relates to the field of compressor control systems, specifically a high-precision dual-delay compressor control system. Background Technology

[0002] With the popularization of the concept of digital and intelligent industrial manufacturing, the dense deployment of various low-voltage intelligent devices in certain areas has become the norm, placing higher demands on the field of high-precision intelligent electrical control in terms of hardware, software, and manufacturing technologies. Currently, the widely used low-voltage distribution box system uses PLC as the core controller. However, due to the limitations of PLC resources and functions, it can no longer meet the integrated development needs of intelligentization, digitalization, automation, and comprehensive safety assurance, especially the needs of press delay control. Utility Model Content

[0003] This invention provides a high-precision dual-delay press control system to solve the problem that existing PLCs cannot meet the delay control requirements of presses.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A high-precision dual-delay compressor control system is characterized by comprising a GD32 control module, a GD32 power supply module, a signal input acquisition module, an active output identification module, a dual-delay control display module, and a high-precision oscillation clock module; the GD32 power supply module supplies power to the GD32 control module, the signal input acquisition module, and the active output identification module; the input signal acquisition module acquires the power-on signal of the refrigeration system and sends it to the GD32 control module; the active output identification module automatically outputs the voltage provided by the GD32 power supply module to the compressor, or is controlled by the GD32 control module to output a delayed voltage to the compressor.

[0006] The GD32 control module is also connected to a high-precision oscillation clock module and a dual-delay control display module. The dual-delay control display module acquires the delay parameters and sends them to the GD32 control module. The high-precision oscillation clock module sets the internal clock bus of the GD32 control module through external crystal oscillation. The GD32 control module outputs delay control commands to the active output identification module according to the set clock and delay parameters.

[0007] Furthermore, the signal input acquisition module acquires the voltage and current signals output by the GD32 power module, thereby obtaining the power-on signal of the refrigeration system and sending it to the GD32 control module.

[0008] Furthermore, the dual-delay control display module acquires the power-on delay parameters and power-off delay parameters and sends them to the GD32 control module.

[0009] Furthermore, the GD32 control module is also connected to DI and DO interfaces.

[0010] Compared with the prior art, the advantages of this utility model are:

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model provides a high-precision dual-delay compressor control system based on the GD32 control module (MCU), which has a simple structure, is easy to use, and can be applied to compressor control in various refrigeration systems.

[0013] 2. This utility model uses the GD32 control module to accurately protect and control the press. It can freely switch between various delay modes through input signals and system delay selection, integrating digital, automated, intelligent and stable operation.

[0014] 3. This utility model adopts a modular design. Each functional module is independent, but they can also be interconnected through the GD32 control module. It has functional portability and versatility. By adding or removing functional modules, the functionality of the compressor refrigeration system can be diversified. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the system structure in this embodiment.

[0016] Figure 2 This is the system control flowchart of this embodiment. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figure 1 As shown in the figure, this embodiment provides a high-precision dual-delay compressor control system based on GD32, including a GD32 control module (MCU), a power interference filtering module, a GD32 power supply module, a signal input acquisition module, an active output identification module, a dual-delay control display module, and a high-precision oscillation clock module.

[0019] The GD32 power module is the core of the power supply. The electrical energy output by the GD32 power module is filtered by the power interference filtering module to form a filtered power supply, which then supplies power to the signal input acquisition module, the active output identification module, and the GD32 control module.

[0020] The signal input acquisition module receives the power-on signal of the refrigeration system and the power supply information of the power module. The active output identification module automatically outputs the output voltage of the GD32 power module, or is controlled by the GD32 control module to output the voltage to the compressor after a delay.

[0021] In this embodiment, the output of the GD32 power module can be selected as AC, DC, or AC / DC hybrid. Therefore, when acquiring the voltage and current signals output by the GD32 power module, a voltage transformer and a current loop are used to acquire the corresponding input signals. After the signals are stepped down and filtered, the signal amplitude is made to be within the range of 0~3.3V that the GD32 control module can process. Then, the signals are input to the AD channel of the GD32 control module for analog signal data acquisition and processing. The signal input acquisition module acquires the electrical signals output by the GD32 power module, thereby obtaining the power-on signal of the refrigeration system and sending it to the GD32 control module.

[0022] The GD32 control module is connected to a high-precision oscillation clock module and a dual-delay control and display module. The high-precision oscillation clock module uses an external 12MHz crystal oscillator to set the internal system clock bus of the GD32 control module, providing more autonomous and precise frequency control than the internal clock controllable bus. The dual-delay control and display module is used for human-machine interaction to obtain delay parameters. It includes a power-on delay and power-off delay control module and a dual-delay real-time display module, all of which are connected to the signal input terminals of the GD32 control module.

[0023] The GD32 control module is used to implement different delay modes based on the delay parameters. After obtaining the power-on signal of the refrigeration system, the GD32 control module determines whether to disconnect the output based on the magnitude of the electrical signal to protect the compressor from damage. It also performs logical processing based on the set clock and the set delay parameters to determine the delay control command parameters to be output to the active output identification module.

[0024] The GD32 control module can also be connected to a temperature and humidity acquisition module and a DI / DO interface. The temperature and humidity acquisition module is a resistive temperature and humidity sensor. The real-time detected temperature and humidity data is output to the GD32 control module through the ADC interface. The information data collected by the temperature and humidity sensor is used to automatically control the start, stop and delay of the compressor.

[0025] like Figure 2 As shown, in this embodiment, the external clock frequency is set to 12MHz through the system startup function. Before initialization, the timer interrupt is set to synchronize the main function for high-precision control and parameter accumulation. The input port parameters are repeatedly read to determine whether a delay mode is set. If there is no delay, no processing is performed. When setting a power-off delay, the power-off delay flag is set to 1 and the power-on delay flag is set to 0. When setting a power-on delay, the power-on delay flag is set to 1 and the power-off delay flag is set to 0. When both power-off and power-on delays are set simultaneously, the dual delay flag is set to 1 and the power-on / off delay flag is set to 0. The delay mode is then displayed and output.

[0026] When the compressor needs to be turned on, it checks whether the three flags—the power-off delay flag, the power-on delay flag, and the double delay flag—are 1. If the power-on delay flag or the double delay flag is 1, it processes the data in the power-on register of the interrupt timer to determine whether the delay condition is met before turning on the compressor. When the compressor is turned off, it checks whether the three flags are 1. If the power-off delay flag or the double delay flag is 1, it determines whether the condition is met and increments the delay count in the interrupt timer. All of the above information can be stored in the memory and will not be lost when power is off, so there is no need to repeat setting the parameters.

[0027] The preferred embodiments of this utility model have been described in detail above with reference to the accompanying drawings. These embodiments are merely descriptions of preferred embodiments and are not intended to limit the concept and scope of this utility model. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. Such combinations, as long as they do not violate the spirit of this utility model, should also be considered as part of this disclosure. To avoid unnecessary repetition, this utility model will not further describe all possible combinations.

[0028] This utility model is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this utility model and without departing from the design idea of ​​this utility model, all modifications and improvements made by those skilled in the art to the technical solution of this utility model should fall within the protection scope of this utility model. The technical content for which protection is sought in this utility model has been fully recorded in the claims.

Claims

1. A high precision double delay press control system, characterized by, It includes a GD32 control module, a GD32 power supply module, a signal input acquisition module, an active output identification module, a dual-delay control and display module, and a high-precision oscillation clock module; the GD32 power supply module supplies power to the GD32 control module, the signal input acquisition module, and the active output identification module; the signal input acquisition module acquires the power-on signal of the refrigeration system and sends it to the GD32 control module; the active output identification module automatically outputs the voltage provided by the GD32 power supply module to the compressor, or is controlled by the GD32 control module to output voltage to the compressor with a delay. The GD32 control module is also connected to a high-precision oscillation clock module and a dual-delay control display module. The dual-delay control display module acquires the delay parameters and sends them to the GD32 control module. The high-precision oscillation clock module sets the internal clock bus of the GD32 control module through external crystal oscillation. The GD32 control module outputs delay control commands to the active output identification module according to the set clock and delay parameters.

2. A high precision double delay press control system according to claim 1, wherein, The signal input acquisition module acquires the voltage and current signals output by the GD32 power module, thereby obtaining the power-on signal of the refrigeration system and sending it to the GD32 control module.

3. A high precision double-delay press control system according to claim 1, wherein, The dual-delay control and display module acquires the power-on delay parameters and power-off delay parameters and sends them to the GD32 control module.

4. A high precision double-delay press control system according to claim 1, wherein, The GD32 control module is also connected to DI and DO interfaces.

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