High-precision double-delay press control system

Abstract

The invention 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, convenient to use and capable of being universally used for compressor control of various refrigerating systems.

Description

Technical Field

[0001] The present invention relates to the field of compressor control systems, and specifically to a high-precision dual-delay press control system. Background Art

[0002] With the popularization of the concepts of digitalization and intelligentization in industrial manufacturing, the intensive deployment of various low-voltage intelligent devices in a certain area has become the norm, posing higher requirements for various software technologies such as hardware and software and the high-precision intelligent electronic control field of manufacturing technologies. The currently widely used low-voltage distribution box system uses a PLC as the core controller. Limited by the resources and functions of the PLC, it can no longer meet the integrated development needs of intelligentization, digitalization, automation, and all-round safety guarantee, especially the press delay control requirements. Summary of the Invention

[0003] The present invention provides a high-precision dual-delay press control system to solve the problem that the existing technology PLC cannot meet the press delay control requirements.

[0004] To achieve the above object, the technical solution adopted by the present invention is as follows: A high-precision dual-delay press control system, characterized by comprising a GD32 control module, a GD32 power module, a signal input and acquisition module, an active output recognition module, a dual-delay control and display module, and a high-precision oscillator clock module; the GD32 power module supplies power to the GD32 control module, the signal input and acquisition module, and the active output recognition 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 recognition module automatically outputs the voltage provided by the GD32 power module to the press, or outputs the voltage to the press with a delay under the control of the GD32 control module. The GD32 control module is further connected to a high-precision oscillator clock module and a dual-delay control and display module. The dual-delay control and display module acquires the delay parameters and sends them to the GD32 control module. The high-precision oscillator clock module sets the internal clock bus of the GD32 control module through external crystal oscillation; the GD32 control module outputs a delay control instruction to the active output recognition module according to the set clock and delay parameters.

[0005] Further, the signal input and 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.

[0006] Further, the dual-delay control and display module acquires the start-up delay parameter and the shutdown delay parameter and sends them to the GD32 control module.

[0007] Further, the GD32 control module is further connected to DI and DO interfaces.

[0008] Compared with the prior art, the advantages of the present invention are as follows: Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention provides a high-precision dual-delay press control system based on a GD32 control module (MCU), which has a simple structure, is easy to use, and can be applied to the press control of various refrigeration systems.

[0009] 2. The present invention uses a GD32 control module to perform precise protection control on the press, and realizes free switching of multiple different delay modes through input signals and system delay selection, integrating digital, automated, intelligent, and stable operations.

[0010] 3. The present invention adopts a modular design. Each functional module is independent and can be modularly interconnected through the GD32 control module, having functional transplantation versatility. By increasing or decreasing the installation of functional modules, the modular diversification of the press refrigeration system function can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the schematic diagram of the system structure of this embodiment.

[0012] Figure 2 is the system control flowchart of this embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The present invention will be further described below with reference to the drawings and embodiments.

[0014] As Figure 1 shown, a high-precision dual-delay press control system based on GD32 provided in this embodiment includes a GD32 control module (MCU), a power interference filtering module, a GD32 power module, a signal input acquisition module, an active output identification module, a dual-delay control display module, and a high-precision oscillation clock module.

[0015] The GD32 power module is the core of power supply. The electric energy output by the GD32 power module forms a filtered power supply after being filtered by the power interference filtering module, and the filtered power supply supplies power to the signal input acquisition module, the active output identification module, and the GD32 control module respectively.

[0016] 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 delays the output voltage to the press under the control of the GD32 control module.

[0017] In this embodiment, the output of the GD32 power module can be selected as AC, DC, or AC-DC hybrid. Therefore, when collecting the voltage and current signals output by the GD32 power module, a voltage transformer and a current loop are used to collect and input the corresponding signals. After the signals are processed by step-down filtering, the signal amplitude range is between 0 and 3.3V, which is the signal that the GD32 control module can process. Then, the signals are input into the AD channel of the GD32 control module for analog signal data acquisition and processing. The signal input acquisition module collects 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.

[0018] A high-precision oscillator clock module and a dual-delay control display module are respectively connected to the GD32 control module. The high-precision oscillator clock module sets the internal system clock bus of the GD32 control module through the external 12MHZ crystal oscillator oscillation, which is more autonomous, controllable, and accurate than the internal clock controllable bus frequency. The dual-delay control display module is used to realize human-computer interaction to obtain delay parameters. The dual-delay control display module includes a power-on delay and a power-off delay control module, and a dual-delay real-time display module. The power-on delay and power-off delay control module and the dual-delay real-time display module are respectively connected to the signal input end of the GD32 control module.

[0019] The GD32 control module is used to implement different delay methods according to the delay parameters. After the GD32 control module obtains the power-on signal of the refrigeration system, it judges whether to disconnect the output according to the size of the electrical signal to protect the compressor from being damaged, and performs logical processing according to the set clock and the set delay parameters to determine the delay control instruction parameters output to the active output recognition module.

[0020] A temperature and humidity acquisition module and a DI / DO interface can also be connected to the GD32 control module. The temperature and humidity acquisition module is a resistive temperature and humidity sensor. The real-time detected temperature and humidity data are output to the GD32 control module through the ADC interface. Information data is collected through the temperature and humidity sensor to automatically control the start and stop of the compressor and the delay.

[0021] As Figure 2 shown, in this embodiment, the external clock frequency of 12MHZ is set through the system startup function. Before initialization, the timer interrupt is set to synchronize the main function operation for high-precision control and parameter accumulation. By repeatedly reading the parameters of the input port, it is judged whether there is a set delay method. When there is no delay design, no processing is done. When the power-off delay is set, the power-off delay flag is set to 1 and the power-on delay flag is set to 0; when the power-on delay is set, the power-on delay flag is set to 1 and the power-off delay flag is set to 0; when both the power-off delay and the power-on delay are set, the dual-delay flag is set to 1 and the power-on and power-off delay flag is set to 0, and the delay mode is displayed and output.

[0022] When the press needs to be started, it is judged whether the three flag bits of the shutdown delay flag position, the startup delay flag position, and the double delay flag position are 1. If the startup delay flag bit or the double delay flag bit is 1, data processing is performed on the startup register in the interrupt timer to judge whether the delay condition is met to start the press; when the press is shut down, it is judged whether the three flag bits are 1. If the shutdown delay flag bit or the double delay flag bit is 1, it is judged whether the condition is met and the delay count is accumulated in the interrupt timer. The above information can be stored in the memory and will not be lost when the power is off, and there is no need to repeat the parameter setting.

[0023] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. The embodiments described in the present invention are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Among the various specific technical features described in the above specific embodiments, they can be combined in any suitable way without contradiction. As long as such a combination does not violate the idea of the present invention, it should also be regarded as the content disclosed in this disclosure. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0024] The present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention and without departing from the design idea of the present invention, various variations and improvements made by those skilled in the art to the technical solution of the present invention should fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.

Claims

1. A high-precision double-delay press control system, characterized in that, It includes a GD32 control module, a GD32 power module, a signal input acquisition module, an active output recognition module, a dual-delay control display module, and a high-precision oscillation clock module; the GD32 power module supplies power to the GD32 control module, the signal input acquisition module, and the active output recognition 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 recognition module automatically outputs the voltage provided by the GD32 power module to the compressor, or outputs the voltage to the compressor with a delay under the control of the GD32 control module. 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 obtains 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 a delay control instruction to the active output recognition module according to the set clock and delay parameters.

2. The high-precision dual-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. The high-precision dual-delay press control system according to claim 1, characterized in that, The dual-delay control display module obtains the start-up delay parameter and the shutdown delay parameter and sends them to the GD32 control module.

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

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