Novel industrial communication converter

Abstract

The utility model provides a novel industrial communication converter. The novel industrial communication converter comprises a parameter setting unit, a central processor unit, an information display unit and an output signal unit, the parameter setting unit is connected with the central processor unit and sets input and output signal types through external dial-up. The central processor unit converts input signals set by the parameter setting unit and outputs the input signals to an external load end through the output signal unit. And the information display unit is connected with the central processor unit to display communication information, control parameters and fault alarm. The communication tool can output various types of signals, has an ultra-small size, is convenient to install, and has a wide-range external power supply input power supply mode and high portability.

Description

Technical Field

[0001] The utility model relates to the field of electrical automation and industrial control technology, and in particular to a novel industrial communication converter. Background Art

[0002] In the field of electrical automation and industrial control, the external input communication method of many industrial control equipment uses a single transmitted signal as the setting of relevant parameters within the system. The existing signal generators do not have the flexible expansion and convenient installation characteristics in terms of size and weight. Therefore, in some applications that require outdoor debugging, on-site customer demonstrations, business trip debugging, and quality inspections, new industrial communication converters are an indispensable alternative.

[0003] On the other hand, as a product used for industrial communication, multiple types of loads often require different types of signal sources. The host computer control system often only has a single signal output, which cannot meet the needs of multiple load types, or even output multiple different types of control signals at the same time, which has limitations. The new industrial communication converter can set and select different signal input sources and set different signal output modes, with strong compatibility. At the same time, in more complex multi-load conditions, multiple new industrial communication converters can be used to achieve multi-channel signal expansion and control. Therefore, the new industrial communication converter has its own advantages and relatively broad application prospects. Utility Model Content

[0004] According to the technical problems mentioned in the above background technology, a new industrial communication converter is provided.

[0005] The technical means adopted by this utility model are as follows:

[0006] A new type of industrial communication converter, including:

[0007] parameter setting unit, central processing unit, information display unit and output signal unit;

[0008] The parameter setting unit is connected to the central processing unit and sets the type of input and output signals through an external dial switch; the central processing unit converts the input signal set by the parameter setting unit and outputs it to the external load end through the output signal unit;

[0009] The information display unit is connected to the central processing unit to realize the display of communication information, control parameters and fault alarms.

[0010] Furthermore, the parameter setting unit includes: an input voltage signal source, an input current signal source, an input frequency signal source and an input RS485 signal input.

[0011] Furthermore, the information display unit includes a 4-digit digital tube.

[0012] Furthermore, the parameter setting unit realizes the conversion of the signal source through the voltage analog-to-digital conversion unit I, the current conversion voltage unit, the voltage analog-to-digital conversion unit II, the frequency voltage conversion unit, the RC filtering unit, and the UART signal input unit according to the input type;

[0013] Among them, the input voltage signal source is connected to the voltage analog-to-digital conversion unit I, and then connected to the central processing unit; the input current signal source is connected to the current conversion voltage unit, and then connected to the voltage analog-to-digital conversion unit II, and then connected to the central processing unit; the input frequency signal source is connected to the frequency voltage conversion unit, and then connected to the RC filter unit, and then connected to the central processing unit; the input RS485 signal input is connected to the UART signal input unit, and then connected to the central processing unit.

[0014] Furthermore, the central processing unit generates the communication signal into a target format through the frequency-voltage conversion unit, the frequency-current conversion unit, the frequency-voltage conversion output unit, and the UART signal output unit, and then sends it to the lower-level signal receiving control unit through the output voltage signal source, the output current signal source, the output frequency signal source, and the RS485 signal output unit respectively;

[0015] Among them, the frequency-voltage conversion unit is connected to the output voltage signal source and outputs a signal through the output voltage signal source; the frequency-current conversion unit is connected to the output current signal source and outputs a signal through the output current signal source; the frequency-voltage conversion output unit is connected to the output frequency signal source and outputs a signal through the output frequency signal source; the UART signal output unit is connected to the RS485 signal output unit and outputs a signal through the RS485 signal output unit.

[0016] Furthermore, the input signal of the input voltage signal source is 0-10V; the input signal of the input current signal source is 4-20mA; and the input signal of the input frequency signal source is 1-100KHz.

[0017] Furthermore, the output signal of the output voltage signal source is 0-10 V; the input signal of the output current signal source is 4-20 mA; and the input signal of the output frequency signal source is 1-100 KHz.

[0018] Furthermore, the external dimensions of the communication converter are 7 cm in length, 5 cm in width and 1 cm in height.

[0019] Compared with the prior art, the utility model has the following advantages:

[0020] The utility model is a communication tool that can output various types of signals. It has an ultra-small size and is easy to install. It also has a wide range of external power input power supply and high portability. Specifically, the type of input and output signal is set through an external dial input unit, and the target signal source is calculated and generated through its internal MCU control unit. The signal is amplified by the operational amplifier circuit and output to the external connector. The display unit can display the set value of the signal, and in the output state, it can display the frequency, amplitude and duty cycle of the actual output signal, fault alarm parameters, etc. The output mode can be selected through the external mode switch. The new industrial communication converter can also be used in series and parallel combinations according to the actual application conditions, which can greatly improve the convenience and reliability of use.

[0021] This utility model industrial communication converter has a convenient and fast connection method, adopts a wide range of input voltage, and has good electrical characteristics and convenient and fast input and output control. It also has an ultra-small size. It is an excellent signal generation and conversion tool in research and development, testing, and industrial control processes. It can be widely used in related fields and has its own irreplaceable practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0023] Figure 1 This is a functional block diagram of the utility model.

[0024] Figure 2 This is a schematic diagram of the circuit principle of the utility model.

[0025] Among them, 1 is the input voltage signal source; 2 is the input current signal source; 3 is the input frequency signal source; 4 is the input RS485 signal input; 5 is the voltage analog-to-digital conversion unit I; 6 is the current conversion voltage unit; 7 is the frequency voltage conversion unit; 8 is the UART signal input unit; 9 is the voltage analog-to-digital conversion unit II; 10 is the RC filter unit; 11 is the central processing unit; 12 is the frequency voltage conversion unit; 13 is the frequency current conversion unit; 14 is the frequency voltage conversion output unit; 15 is the UART signal output unit; 16 is the output voltage signal source; 17 is the output current signal source; 18 is the output frequency signal source; 19 is the RS485 signal output unit; 20 is the information display unit; 21 is the external input unit. DETAILED DESCRIPTION

[0026] In order to help those skilled in the art better understand the present invention, 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 embodiments described 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 making creative efforts should fall within the scope of protection of the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] In the fields of electrical automation and industrial control, many industrial control devices, such as DC variable-frequency drives, AC inverters, refrigerator controllers, industrial fans, and fresh air systems, rely on unidirectional frequency signals for external input communication to set system parameters. These control signals typically take several forms: fixed-duty-cycle signals with adjustable frequency, output signals with adjustable duty cycle at a fixed frequency, voltage amplitude signals, current amplitude signals, and RS485 half-duplex communication signals. Currently, host control units on the market offer only one of these signal types. Their size, weight, and power connection methods restrict their use to specific applications, limiting them to increasingly flexible and diverse applications and testing and maintenance environments.

[0029] This utility model, a communication tool capable of converting industrial communication signals, features an ultra-compact size, a set-up and selection function, and the ability to freely select the input and output signal types. It also includes an external power input interface and high portability. Specifically, the input and output signal types are set via external dial switches. The internal central processing unit calculates and generates the target signal source, which is then converted through an operational amplifier circuit and other voltage and current modulation functions before being output to an external load. The display unit displays the set signal value and output feedback value. In the output state, it displays the actual output signal's frequency, duty cycle, voltage, current, speed, and fault alarm information, providing a high level of convenience and reliability.

[0030] Specifically, if Figure 1-Figure 2 As shown, the present invention provides a novel industrial communication converter, comprising: a parameter setting unit, a central processing unit 11, an information display unit 20 and an output signal unit.

[0031] The parameter setting unit is connected to the central processing unit 11 and uses an external dial switch to set the input and output signal types. The central processing unit 11 converts the input signal set by the parameter setting unit and outputs it to the external load terminal through the output signal unit. The information display unit 20 includes a 4-digit digital tube. It is connected to the central processing unit 11 to display communication information, control parameters, and fault alarms.

[0032] As a preferred embodiment, in the present application, the parameter setting unit includes: an input voltage signal source 1 , an input current signal source 2 , an input frequency signal source 3 and an input RS485 signal input 4 .

[0033] As a preferred embodiment, in the present application, the parameter setting unit realizes the conversion of the signal source through the voltage analog-to-digital conversion unit 5, the current conversion voltage unit 6, the voltage analog-to-digital conversion unit 9, the frequency voltage conversion unit 7, the RC filter unit 10, and the UART signal input unit 8 according to the input type. Among them, the input voltage signal source 1 is connected to the voltage analog-to-digital conversion unit 5, and then connected to the central processing unit 11; the input current signal source 2 is connected to the current conversion voltage unit 6, and then connected to the voltage analog-to-digital conversion unit 9, and then connected to the central processing unit 11; the input frequency signal source 3 is connected to the frequency voltage conversion unit 7, and then connected to the RC filter unit 10, and then connected to the central processing unit 11; the input RS485 signal input 4 is connected to the UART signal input unit 8, and then connected to the central processing unit 11.

[0034] As a preferred embodiment, the central processing unit 11 converts the communication signal into a target format through the frequency-voltage conversion unit 12, the frequency-current conversion unit 13, the frequency-voltage conversion output unit 14, and the UART signal output unit 15, and then sends it to the lower-level signal receiving control unit through the output voltage signal source 16, the output current signal source 17, the output frequency signal source 18, and the RS485 signal output unit 19. The frequency-voltage conversion unit 12 is connected to the output voltage signal source 16 and outputs a signal through the output voltage signal source 16; the frequency-current conversion unit 13 is connected to the output current signal source 17 and outputs a signal through the output current signal source 17; the frequency-voltage conversion output unit 14 is connected to the output frequency signal source 18 and outputs a signal through the output frequency signal source 18; and the UART signal output unit 15 is connected to the RS485 signal output unit 19 and outputs a signal through the RS485 signal output unit 19.

[0035] As a preferred embodiment, the input signal of the input voltage signal source 1 is 0-10V; the input signal of the input current signal source 2 is 4-20mA; and the input signal of the input frequency signal source 3 is 1-100KHz.

[0036] As a preferred embodiment, the output signal of the output voltage signal source 16 is 0-10 V; the input signal of the output current signal source 17 is 4-20 mA; and the input signal of the output frequency signal source 18 is 1-100 KHz.

[0037] In the present application, the external dimensions of the communication converter are 7 cm in length, 5 cm in width and 1 cm in height.

[0038] Specifically, when the test begins, the system switches on and displays the default operating mode. By setting the external DIP input buttons, the input and output signals are configured to have corresponding electrical parameters. By setting the mode switch, the system automatically matches the corresponding frequency and duty cycle signal source output, and then amplifies the signal source output through the discharge output circuit. The system's power interface can be used to charge the system battery and also serves as a backup external power input interface. During operation, the system's operating status and protection status are indicated by the digital tube display unit on the box body. In addition to displaying communication parameters, it can also view relevant information such as fault alarms.

[0039] The serial numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts not described in detail in a particular embodiment, please refer to the relevant description of other embodiments. In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented by other means.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new type of industrial communication converter, characterized in that: include: A parameter setting unit, a central processing unit (11), an information display unit (20), and an output signal unit; The parameter setting unit is connected to the central processing unit (11) and sets the type of input and output signals through an external dial; the central processing unit (11) converts the input signal set by the parameter setting unit and outputs it to the external load end through the output signal unit; The information display unit (20) is connected to the central processing unit (11) to realize the display of communication information, control parameters and fault alarms.

2. A novel industrial communication converter according to claim 1, characterized in that: The parameter setting unit comprises: an input voltage signal source (1), an input current signal source (2), an input frequency signal source (3) and an input RS485 signal input (4).

3. A novel industrial communication converter according to claim 1, characterized in that: The information display unit (20) includes a 4-digit digital tube.

4. A novel industrial communication converter according to claim 2, characterized in that: The parameter setting unit realizes the conversion of the signal source through the voltage analog-to-digital conversion unit I (5), the current conversion voltage unit (6), the voltage analog-to-digital conversion unit II (9), the frequency voltage conversion unit (7), the RC filter unit (10), and the UART signal input unit (8) according to the input type; The input voltage signal source (1) is connected to the voltage analog-to-digital conversion unit I (5) and then connected to the central processing unit (11); the input current signal source (2) is connected to the current conversion voltage unit (6) and then connected to the voltage analog-to-digital conversion unit II (9) and then connected to the central processing unit (11); the input frequency signal source (3) is connected to the frequency voltage conversion unit (7) and then connected to the RC filter unit (10) and then connected to the central processing unit (11); the input RS485 signal input (4) is connected to the UART signal input unit (8) and then connected to the central processing unit (11).

5. A novel industrial communication converter according to claim 1 or 4, characterized in that: The central processing unit (11) generates a target format of the communication signal through the frequency voltage conversion unit (12), the frequency current conversion unit (13), the frequency voltage conversion output unit (14), and the UART signal output unit (15), and then sends it to the lower-level signal receiving control unit through the output voltage signal source (16), the output current signal source (17), the output frequency signal source (18), and the RS485 signal output unit (19); The frequency-voltage conversion unit (12) is connected to the output voltage signal source (16) and outputs a signal through the output voltage signal source (16); the frequency-current conversion unit (13) is connected to the output current signal source (17) and outputs a signal through the output current signal source (17); the frequency-voltage conversion output unit (14) is connected to the output frequency signal source (18) and outputs a signal through the output frequency signal source (18); and the UART signal output unit (15) is connected to the RS485 signal output unit (19) and outputs a signal through the RS485 signal output unit (19).

6. A novel industrial communication converter according to claim 2, characterized in that: The input signal of the input voltage signal source (1) is 0-10V; the input signal of the input current signal source (2) is 4-20mA; and the input signal of the input frequency signal source (3) is 1-100KHz.

7. A novel industrial communication converter according to claim 5, characterized in that: The output signal of the output voltage signal source (16) is 0-10 V; the input signal of the output current signal source (17) is 4-20 mA; and the input signal of the output frequency signal source (18) is 1-100 KHz.

8. A novel industrial communication converter according to claim 1, characterized in that: The external dimensions of the communication converter are 7 cm in length, 5 cm in width and 1 cm in height.

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