CN216747880U

CN216747880U - Multi-path voltage identification and judgment control device with prompting and alarming functions

Info

Publication number: CN216747880U
Application number: CN202123239118.4U
Authority: CN
Inventors: 陈泽洋; 陈栋
Original assignee: Gyx Optoelectronics Co ltd
Current assignee: Gyx Optoelectronics Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-06-14
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses a multichannel voltage discernment of area suggestion and warning and controlling means who judges, include the PCB board and set up the control circuit on the PCB board, control circuit includes main control chip, reference voltage circuit and a plurality of voltage acquisition circuit, main control chip and reference voltage circuit electricity are connected, voltage acquisition circuit includes bleeder circuit and two operational amplifier, bleeder circuit is connected with the main control chip electricity through two operational amplifier. The utility model discloses a set up the voltage acquisition circuit that a plurality of and main control chip electricity are connected in control circuit to realize that controlling means can gather the effect of test to a plurality of voltage simultaneously when using, occupation of land space is little, and the practicality is high, is favorable to market-oriented popularization and application.

Description

Multi-path voltage identification and judgment control device with prompting and alarming functions

Technical Field

The utility model relates to an electrical equipment technical field, concretely relates to multichannel voltage discernment of area suggestion and warning and controlling means who judges.

Background

The direct current voltage in the circuit is inevitably required to be tested and collected in the electric control system, at present, a digital voltmeter is generally installed on a tool fixture in the electric control system and used for testing and collecting the direct current voltage in the electric control system, under the condition, if a plurality of voltages are required to be tested in the whole electric control system, a plurality of digital voltmeters are required to be installed on the tool fixture, so that the volume of the whole tool fixture can be greatly increased, meanwhile, an operator needs to observe test data of the digital voltmeter one by one when testing and judging whether the voltages are normal or not, the whole process consumes time and manpower, meanwhile, the phenomenon of omission or observation error is easy to occur, therefore, potential hazards are brought to the production efficiency and the production quality of enterprises applying the electric control system, and the requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical problem that the digital voltmeter can only carry out single voltage test in the prior art; the utility model provides a multichannel voltage discernment of area suggestion and warning and the controlling means who judges to realize that single controlling means can carry out the technological effect who tests to a plurality of voltages simultaneously.

The utility model discloses a reach above-mentioned purpose, adopt following technical scheme:

the utility model provides a multi-path voltage discernment of area suggestion and warning and controlling means who judges, includes the PCB board and sets up the control circuit on the PCB board, control circuit includes main control chip, reference voltage circuit and a plurality of voltage acquisition circuit, main control chip and reference voltage circuit electricity are connected, voltage acquisition circuit includes bleeder circuit and two operational amplifier, bleeder circuit is connected with the main control chip electricity through two operational amplifier.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

As an optimal technical scheme of the utility model, be equipped with the LCD display on the PCB board, the LCD display is connected with the main control chip electricity.

As an optimal technical scheme of the utility model, still be equipped with alarm module on the PCB board, alarm module is connected with the main control chip electricity.

As an optimized technical scheme of the utility model, alarm module is arbitrary one or two kinds of combinations in bee calling organ or the LED lamp.

As a preferred technical scheme of the utility model, control circuit still includes the parameter setting module, the parameter setting module includes that a plurality of is fixed in on the PCB board and all dabs the switch with the main control chip electricity is connected.

As a preferred technical scheme of the utility model, control circuit still includes communication module, communication module is connected with the main control chip electricity.

As an optimized technical scheme of the utility model, be equipped with power source, TX, RX interface and port on the communication module.

As an optimized technical solution of the present invention, the port is a 4PIN port.

As a preferred technical scheme of the utility model, control circuit still includes operating voltage conversion module, operating voltage conversion module is connected with the main control chip electricity.

The beneficial effects of the utility model are that:

1. the utility model discloses a plurality of voltage acquisition circuits that are electrically connected with the main control chip are arranged in the control circuit, thereby realizing the technical effect that the control device can simultaneously acquire and test a plurality of voltages when in use; meanwhile, the double operational amplifiers arranged in the voltage acquisition circuit can ensure that when a plurality of groups of voltage signals are acquired simultaneously, the voltage signals of each group are not interfered with each other, so that the accuracy of signal acquisition is ensured.

Drawings

Fig. 1 is a schematic diagram of an external structure of a control device for multi-path voltage identification and determination with prompting and alarming functions of the present invention;

FIG. 2 is a frame diagram of the working principle of the control device for multi-channel voltage identification and determination with prompt and alarm functions;

fig. 3 is a circuit diagram of the main control chip of the present invention;

fig. 4 is a circuit diagram of the reference voltage circuit of the present invention;

fig. 5 is a circuit diagram of the acquisition circuit of the present invention;

FIG. 6 is a circuit diagram of the LCD display of the present invention;

FIG. 7 is a circuit diagram of the buzzer and the LED lamp of the present invention;

FIG. 8 is a circuit diagram of the tact switch of the present invention;

fig. 9 is a circuit connection diagram of the communication module of the present invention;

fig. 10 is a circuit connection diagram of the working voltage conversion module of the present invention;

the symbols in the drawings illustrate that:

the LED display screen comprises a PCB (printed circuit board) 1, an LCD (liquid crystal display) 2, an LED lamp 3 and a tact switch 4.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings.

Aiming at the technical problem that the digital voltmeter in the prior art can only carry out single voltage test; the utility model provides a multichannel voltage discernment of area suggestion and warning and controlling means who judges.

Wherein, the utility model provides the following preferred embodiments

As shown in figures 1 and 2, the control device with the functions of prompting and alarming for multi-path voltage identification and judgment comprises a PCB (printed circuit board) 1 and a control circuit arranged on the PCB 1, wherein the control circuit comprises a main control chip, a reference voltage circuit and a plurality of voltage acquisition circuits, the main control chip is electrically connected with the reference voltage circuit, each voltage acquisition circuit comprises a voltage division circuit and a double-operational amplifier, and the voltage division circuits are electrically connected with the main control chip through the double-operational amplifier.

When the controller is used, the main control chip is used for comparing and judging the acquired voltage and transmitting each control signal to a corresponding module in the controller, specifically, in this embodiment, the main control chip is a chip of which the model is STM32F103 in the prior art, a specific circuit of the main control chip is shown in fig. 3, a high-precision and high-speed ADC module and a DMA data transmission function are built in the main control chip of the model, and when the controller is used, the DMA data transmission function can enable the data transmission efficiency to be higher, so that the main control chip can process data generated by the ADC more efficiently, and the data calculation efficiency is improved; simultaneously, be worth explaining, in actual application process, the utility model discloses an application chip model is not limited to above-mentioned model, and the chip of the conventional other models that can realize above-mentioned effect among the prior art of can selecting according to actual needs among the technical personnel in this field is applied to the utility model discloses a chip of the chip model is used to the effect of can realizing.

Reference voltage circuit is used for providing the voltage calculation standard of high accuracy when carrying out voltage contrast test for main control chip, in this embodiment, what reference voltage circuit adopted is that the model that conventional use was TL431 among the prior art, and its concrete circuit is shown as figure 4, is worth explaining equally, in actual application process, the utility model discloses in reference voltage circuit's model also not confine to TL431, technical staff in the field can select the reference voltage circuit that conventional use can realize other models of above-mentioned effect among the prior art to be applied to according to actual needs the utility model discloses a voltage calculation standard that the effect can be realized to the main control chip.

The voltage dividing circuit is used for dividing the voltage to be measured so as to avoid the situation that other electronic elements in the whole control circuit are burnt out due to overhigh voltage to be measured, and meanwhile, in the actual application process, a voltage acquisition port for connecting the external voltage to be measured is arranged on the voltage dividing circuit; the dual operational amplifier is used for buffering, stabilizing gain and frequency compensation of the divided voltage to obtain a stable determined voltage, and transmitting the determined voltage to the main control chip for comparison and determination, in the embodiment, the voltage dividing circuit and the dual operational amplifier are both a voltage dividing circuit and a dual operational amplifier which are conventionally used in the prior art and are well known by those skilled in the art, wherein the model of the dual operational amplifier is LM 358; specifically, in this embodiment, when the number of the voltage acquisition circuits is six, the number of the voltage division circuits and the number of the LM358 dual operational amplifiers are also six, and the circuit connection diagram of the voltage division circuits and the LM358 dual operational amplifiers is shown in fig. 5, that is, at this time, the control device can simultaneously perform acquisition tests on six groups of voltages; it should be noted that, in the practical application process, the number of the voltage acquisition circuits of the present invention is not limited to six groups, and those skilled in the art can select the voltage acquisition circuits adaptively according to the actual needs, and the specific circuit connection can also be adaptively modified according to the circuit disclosed in fig. 5 of the present embodiment.

In this embodiment, in order to more intuitively display the results of the multiple voltage comparison tests, the PCB board is provided with an LCD display 2, the LCD display 2 is electrically connected with the main control chip, and specifically, the main control chip is provided with an I/O port for electrically connecting with the LCD display 1; the circuit connection diagram of the LCD display 1 is shown in fig. 6, and when the LCD display is used, the main control chip transmits the result of each group of voltage tests to the LCD display 2, so that an operator can quickly observe the voltage of each group.

In order to prompt the operator more quickly under the condition of abnormal voltage, an alarm module is further arranged on the PCB 1 and is electrically connected with the main control chip; the alarm module is arbitrary one or the combination of two kinds in bee calling organ or the LED lamp, and is concrete, in this embodiment, alarm module is bee calling organ (not shown in the figure) and LED lamp 3 for being fixed in on the PCB board, and wherein figure 7 is the circuit connection schematic diagram of bee calling organ and LED lamp, and when using, when main control chip judges that the voltage value of testing is not reporting to the police to bee calling organ and LED lamp suggestion warning 3, bee calling organ sounds this moment, and the LED lamp lights in order to reach the effect of suggestion operation personnel simultaneously.

In order to adjust the test range of the voltage more conveniently by an operator in use, the control circuit further comprises a parameter setting module, the parameter setting module comprises a plurality of tact switches 4 which are fixed on the PCB board 1 and are electrically connected with the main control chip, in this embodiment, the number of the tact switches 4 is four, and the circuit connection mode is as shown in fig. 8.

In order to facilitate the signal connection between the control device and external equipment when in use, the control circuit also comprises a communication module, and the communication module is electrically connected with the main control chip; fig. 9 is a circuit connection diagram of the communication module of the present embodiment, and it can be seen that the communication circuit of the present embodiment is provided with a field effect transistor of type 2SK3019, which can communicate and control with an external host at the right time when in application; the test carrier is provided with a power supply interface, a TX interface, an RX interface and a port, the port is a 4PIN port, and the port can be used as a port for communicating with an upper computer and can also be used as a test trigger port when a test carrier is designed.

Meanwhile, in order to ensure that the whole control circuit has a stable and proper voltage source when in operation, the control circuit further comprises a working voltage conversion module, the working voltage conversion module is electrically connected with the main control chip, and when in use, the working voltage conversion module is used for converting an external voltage into a voltage suitable for the control circuit, specifically, as shown in fig. 10, in this embodiment, the working voltage conversion module is used for converting an external 5V voltage into a voltage suitable for the main control chip, i.e., 3.3V voltage.

Finally, it should be noted that: these embodiments are merely illustrative of the present invention and do not limit the scope of the invention. In addition, other variations and modifications will be apparent to persons skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. The utility model provides a multi-channel voltage of area suggestion and warning discerns and the controlling means who judges, includes PCB board (1) and sets up the control circuit on PCB board (1), its characterized in that: the control circuit comprises a main control chip, a reference voltage circuit and a plurality of voltage acquisition circuits, wherein the main control chip is electrically connected with the reference voltage circuit, the voltage acquisition circuits comprise voltage division circuits and double operational amplifiers, and the voltage division circuits are electrically connected with the main control chip through the double operational amplifiers.

2. The multi-path voltage identification and judgment control device with the prompt and alarm function according to claim 1, wherein: the PCB is characterized in that an LCD display (2) is arranged on the PCB (1), and the LCD display (2) is electrically connected with the main control chip.

3. The multi-path voltage identification and judgment control device with the prompt and alarm function according to claim 1, wherein: the PCB (1) is further provided with an alarm module, and the alarm module is electrically connected with the main control chip.

4. The multi-path voltage identification and judgment control device with the prompt and alarm function according to claim 3, wherein: the alarm module is any one or combination of a buzzer and an LED lamp (3).

5. The multi-path voltage identification and judgment control device with the prompt and alarm function according to claim 1, wherein: the control circuit further comprises a parameter setting module, and the parameter setting module comprises a plurality of tact switches (4) which are fixed on the PCB (1) and are electrically connected with the main control chip.

6. The multi-path voltage identification and judgment control device with the prompt and alarm function according to claim 1, wherein: the control circuit further comprises a communication module, and the communication module is electrically connected with the main control chip.

7. The multi-path voltage identification and judgment control device with the prompt and alarm function according to claim 6, wherein: and the communication module is provided with a power supply interface, a TX interface, an RX interface and a port.

8. The multi-path voltage identification and judgment control device with the prompt and alarm function according to claim 7, wherein: the port is a 4PIN port.

9. The multi-path voltage identification and judgment control device with the prompt and alarm function according to claim 1, wherein: the control circuit further comprises a working voltage conversion module, and the working voltage conversion module is electrically connected with the main control chip.