CN220556493U - Time relay control device - Google Patents

Abstract

The utility model relates to the technical field of switch control, in particular to a time relay control device, which comprises a key module, a key detection module, a processing module and a driving module, wherein the key module comprises a mode key, a switching key and a parameter setting key, the mode key is used for triggering the setting of control modes of all channels, the switching key is used for triggering the switching of the control modes of the corresponding channels, and the parameter setting key is used for setting various parameter information; the key detection module respectively detects the states of the mode key and the switching key and outputs corresponding key detection signals; the processing module is configured to receive the key detection signal output by the key detection module, then change the control mode started in the processing module, and output a control signal after the processing module meets the set condition; the driving module is configured to drive the relay to act after receiving the control signal output by the processing module. This application has the effect that makes the relay satisfy the diversified demand of laboratory test.

Description

Time relay control device

Technical Field

The application relates to the technical field of switch control, in particular to a time relay control device.

Background

Currently, a relay is an electrical component used on a lower voltage or lower current circuit to turn on or off a higher voltage, higher current circuit. The relay is widely applied to a plurality of switching value control fields due to simple structure and low cost, and the time relay capable of automatically cutting off the power supply of electric equipment after people leave is gradually accepted by the market.

The relay is widely applied to laboratories, and the control mode of the existing relay controller comprises one of mechanical timing control, pure hardware digital circuit control and Internet remote control, however, the single control mode of the relay controller is difficult to meet various requirements needed during testing, and the situation needs to be improved.

Disclosure of Invention

In order to enable the relay to meet the diversified requirements of laboratory tests, the application provides a time relay control device.

The application provides a time relay controlling means adopts following technical scheme:

a time relay control device comprising: the key module comprises a mode key, a switching key and a parameter setting key, wherein the mode key is used for triggering the setting of the control modes of all channels, the switching key is used for triggering the switching of the control modes of the corresponding channels, and the parameter setting key is used for setting various parameter information; the key detection module is connected with the key module, and is used for respectively detecting the states of the mode key and the switching key and outputting corresponding key detection signals; the processing module is connected with the key detection module, is configured to receive the key detection signal output by the key detection module, then changes the control mode started in the processing module, and outputs a control signal after the processing module meets the set condition; the driving module is connected with the processing module and is configured to drive the relay to act after receiving the control signal output by the processing module.

Through adopting above-mentioned technical scheme, laboratory test personnel carry out the setting of control mode through the mode button, carry out the switching of control mode through switching the button to corresponding passageway, set up multiple parameter information through the parameter setting button, rethread button detection module detects mode button and switching button's state output button detected signal respectively, receive button detected signal by processing module and change the control mode who enables in the processing module, after processing module satisfies the settlement condition, drive the relay action after the control signal is received to the processing module, can set up multiple control mode to the relay through the button module in this application, detect selected control mode and parameter information by button detection module, drive the relay action after adjusting processing module's settlement condition, thereby make the relay satisfy the diversified demand of laboratory test.

Optionally, the system further comprises a display module, wherein the display module is connected with the processing module and is configured to display parameter information output by the processing module after receiving the control signal.

By adopting the technical scheme, the parameter information output by the processing module can be displayed through the display module, and the tester can observe the parameter information more intuitively, so that the accuracy of the parameter information set by the processing module is improved.

Optionally, the display module includes a nixie tube display unit, and the nixie tube display unit is configured to display the setting time information and the remaining time information after receiving the control signal.

By adopting the technical scheme, the digital tube display unit is used for displaying the set time information and the residual time information, so that the test personnel can record the information at each test time node more conveniently, and the accuracy of test data is improved.

Optionally, the nixie tube display unit adopts a 74HC595 chip.

By adopting the technical scheme, the 74HC595 chip is one of chips commonly used in a singlechip system, the function of the chip is to convert serial signals into parallel signals, the chip is commonly used as a driving chip of various nixie tubes and dot matrix screens, and the 74HC595 chip has the characteristics of few occupied IO pins, strong driving capability, infinite cascade connection in theory and the like.

Optionally, the display module includes an LED indication unit configured to display the selected channel information, the time unit information, and the relay switch indication information after receiving the control signal.

By adopting the technical scheme, the LED indication unit is divided into three areas, the area 1 displays the selected channel information, the area 1 displays the time unit information, and the area 3 displays the relay switch indication information.

Optionally, the LED indication unit adopts a 74HC595 chip.

By adopting the technical scheme, the 74HC595 chip can save IO port resources of the MCU, has the characteristics of strong driving capability, infinite cascade in theory and the like, and is very widely applied.

Optionally, the processing module includes a processing chip, a clock circuit, a reset circuit, and a real time clock RTC circuit.

By adopting the technical scheme, the processing module comprises a processing chip, a clock circuit, a reset circuit, a real-time clock RTC circuit and other core components for maintaining the system to operate.

Optionally, the driving module includes photoelectric coupler, first resistor, second resistor, third resistor, triode, relay and jumper interface, photoelectric coupler's first pin passes through first resistor is connected with power supply, photoelectric coupler's second pin with processing module is connected, photoelectric coupler's third pin passes through second resistor with the base of triode is connected, photoelectric coupler's fourth pin is connected with power supply, the third resistor is established ties between triode's base and triode's projecting pole, the projecting pole ground connection, relay's drive end is established ties between triode's collecting electrode and power supply, relay's moving end with jumper interface's first pin, two fixed ends of relay are corresponding to be connected the second pin and the third pin of jumper interface.

Through adopting above-mentioned technical scheme, draw forth relay movable end and two dead ends through setting up the jumper wire interface, the user of being more convenient for is according to the demand of different loads wiring.

In summary, the present application includes at least one of the following beneficial technical effects:

1. in the scheme, a plurality of control modes for the relay can be set through the key module, the key detection module detects the selected control modes and parameter information, and the relay is driven to act after the setting conditions of the processing module are adjusted, so that the relay meets the diversified requirements of laboratory tests;

2. the parameter information output by the processing module can be displayed through the display module, and a tester can intuitively observe the parameter information, so that the accuracy of the parameter information set by the processing module is improved;

3. the jumper wire interface is arranged to lead out the movable end and the two fixed ends of the relay, so that a user can conveniently wire according to the requirements of different loads.

Drawings

FIG. 1 is a schematic diagram of the workflow of a time relay control device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a driving module of a digital tube display unit according to an embodiment of the present application;

FIG. 3 is a schematic circuit diagram of a driving module of an LED indicator unit according to an embodiment of the present application;

fig. 4 is a schematic circuit diagram of a driving module in an embodiment of the present application.

Reference numerals illustrate:

1. a key module; 11. a mode key; 12. switching keys; 13. a parameter setting key; 2. a key detection module; 3. a processing module; 4. a driving module; 5. a display module; 51. a nixie tube display unit; 52. and an LED indicating unit.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

"connected" in the present utility model encompasses both direct and indirect connections, such as those made through some active device, passive device, or electrically conductive medium; connections through other active or passive devices, such as through switches, follower circuits, etc. circuits or components, may be included as known to those skilled in the art, as may be provided for the same or similar functional purposes.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

The embodiment of the application discloses a time relay control device. Referring to fig. 1, the display device includes a key module 1, a key detection module 2, a processing module 3, a driving module 4, and a display module 5. The input end of the key detection module 2 is connected with the key module 1, the output end of the key detection module 2 is connected with the input end of the processing module 3, and the output end of the processing module 3 is respectively connected with the driving module 4 and the display module 5. The key module 1 comprises a mode key 11, a switching key 12 and a parameter setting key 13, wherein the mode key 11 is used for triggering the setting of the control modes of all channels, the switching key 12 is used for triggering the switching of the control modes of the corresponding channels, and the parameter setting key 13 is used for setting various parameter information. The key detection module 2 detects states of the mode key 11 and the switching key 12, respectively, and outputs corresponding key detection signals. The processing module 3 is configured to change the control mode started in the processing module 3 after receiving the key detection signal output by the key detection module 2, and the processing module 3 outputs a control signal after meeting the set condition. The driving module 4 is configured to receive the control signal output by the processing module 3 and then drive the relay to act. The display module 5 is configured to display the parameter information output by the processing module 3 after receiving the control signal.

In the embodiment of the application, laboratory testers set control modes of all channels through a mode key 11, switch corresponding channels through a switching key 12, and set various parameter information through a parameter setting key 13. The key detection module 2 detects the setting signal of the mode key 11 and the switching signal of the switching key 12 respectively, and then inputs the corresponding key detection signals into the processing module 3. After the processing module 3 receives the key detection signal, the control mode started in the processing module 3 is changed, after the processing module 3 meets the set condition, a control signal is output to the driving module 4, the driving module 4 receives the control signal and drives the relay to act, and parameter information output by the processing module 3 can be displayed through the display module 5. In this application scheme can set up multiple control mode to the relay through button module 1, detects selected control mode and parameter information by button detection module 2, drives the relay action after the settlement condition through adjustment processing module 3 to make the relay satisfy the diversified demand of laboratory test.

In some examples, the relay control device is a multi-control mode intermediate relay device developed based on an ARM Cortex-M3 microprocessor platform, and the device is provided with 4 paths of independent intermediate relay modules, can directly control a load with rated current less than 20A, and can also control a high-power intermediate relay to control a larger load.

In some examples, the control means includes any one or several of manual, automatic, time-lapse, and synchronization. The manual control mode is to manually switch and control the relay; the automatic control mode is to control the relay switch according to the set date and time, 10 groups of timing time can be set, and the expansion can be carried out by modifying firmware; the delay control mode is to perform switch control according to the set switch time length and the action times, and the range of the switch time can be set to be between 100 milliseconds and 9999 hours; the synchronous control mode is to carry out any combination and synchronous switch control on the 4-path relay, and the relay with the small serial number is the main relay.

In some examples, the key detection module 2 is configured with 5 mode keys 11 and 4 switch keys 12 in total, and the switch keys 12 can be expanded according to the requirement

In some examples, the processing module 3 includes core components for maintaining the system operation, such as a processing chip, a clock circuit, a reset circuit, and a real time clock RTC circuit, and is configured according to actual requirements with respect to the selection of the circuit type.

In some examples, the firmware of the relay control device is programmed and controlled by adopting a C language, the real-time clock RTC circuit is suitable for MCU peripheral equipment without adding a clock chip, the firmware is in modularized setting, and only the corresponding definition is required to be modified for multi-path relay control needing to be expanded.

Referring to fig. 1, the display module 5 includes a nixie tube display unit 51 and an LED indication unit 52, the nixie tube display unit 51 is configured to display setting time information and remaining time information after receiving a control signal, the nixie tube display unit 51 adopts a 74HC595 chip, the LED indication unit 52 is configured to display selected channel information, time unit information and relay switch indication information after receiving a control signal, and the LED indication unit 52 also adopts a 74HC595 chip.

In the embodiment of the present application, the display module 5 includes any one or several of a nixie tube display unit 51 and an LED indicating unit 52. The nixie tube display unit 51 displays the set time information and the residual time information, so that the record of the information by a tester at each test time node is more convenient, and the accuracy of test data is improved; the LED indicating unit 52 is divided into three areas, area 1 displays the selected channel information, area 1 displays the time unit information, and area 3 displays the relay switch indicating information.

Taking the example diagrams shown in fig. 2 and 3 as an example, the nixie tube display unit 51 adopts a 5.6-inch common cathode 4-bit nixie tube, the driving module 4 of the nixie tube display unit 51 adopts a 74HC595 chip, and the 74HC595 chip has the characteristics of less occupied IO pins, strong driving capability, infinite cascade connection in theory and the like. The driving module 4 of the LED indicating unit 52 also adopts the LED indicating unit 52, and the 74HC595 chip of the nixie tube display unit 51 and the 74HC595 chip driving pin of the LED indicating unit 52 are controlled separately and are not connected in cascade, so that the expansion is facilitated.

Referring to fig. 4, the driving module 4 includes a photo coupler, a first resistor R1, a second resistor R2, a third resistor R3, a triode Q1, a relay and a jumper interface, wherein a first pin of the photo coupler is connected with a power supply through the first resistor R1, a second pin of the photo coupler is connected with the processing module 3, a third pin of the photo coupler is connected with a base of the triode Q1 through the second resistor R2, a fourth pin of the photo coupler is connected with the power supply, the third resistor R3 is connected in series between the base of the triode Q1 and an emitter of the triode Q1, the emitter of the triode Q1 is grounded, a driving end of the relay is connected in series between a collector of the triode Q1 and the power supply, a moving end of the relay is connected with a first pin of the jumper interface, and two fixed ends of the relay are correspondingly connected with a second pin and a third pin of the jumper interface.

In the embodiment of the application, the photoelectric coupler is a conversion device for transmitting an electric signal by taking light as a medium. The light source is characterized by comprising a light source and a light receiver, wherein a wiring port of the light source is an input end, a wiring port of the light receiver is an output end, a first pin of a photoelectric coupler and a second pin of the photoelectric coupler are input ends, and a third pin of the photoelectric coupler and a fourth pin of the photoelectric coupler are output ends. And the jumper wire interface is arranged to lead out the movable end and the two fixed ends of the relay, which is equivalent to leading out the common pin, the normally open pin and the normally closed pin of the relay, so that a user can conveniently wire according to the requirements of different loads.

The implementation principle of the time relay control device in the embodiment of the application is as follows: the laboratory tester sets the control mode of each channel through the mode key 11, switches the control mode of the corresponding channel through the switching key 12, sets various parameter information through the parameter setting key 13, respectively detects the setting signal of the mode key 11 and the switching signal of the switching key 12 through the key detection module 2, then outputs corresponding key detection signals, after receiving the key detection signals, the processing module 3 changes the control mode started in the processing module 3, after the processing module 3 meets the setting conditions, the driving module 4 outputs the control signals, the driving module 4 receives the control signals and then drives the relay to act, and the parameter information output by the processing module 3 can be displayed through the display module 5; in this application scheme can set up multiple control mode to the relay through button module 1, detects selected control mode and parameter information by button detection module 2, drives the relay action after the settlement condition through adjustment processing module 3 to make the relay satisfy the diversified demand of laboratory test.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (2)

1. A time relay control device, comprising:

the system comprises a key module (1), wherein the key module (1) comprises a mode key (11), a switching key (12) and a parameter setting key (13), the mode key (11) is used for triggering the setting of control modes of all channels, the switching key (12) is used for triggering the switching of the control modes of the corresponding channels, and the parameter setting key (13) is used for setting various parameter information;

the key detection module (2), the said key detection module (2) is connected with said key module (1), the said key detection module (2) detects the state of the said mode key (11) and said switch key (12) separately and outputs the corresponding key detection signal;

the processing module (3) is connected with the key detection module (2), the processing module (3) is configured to receive a key detection signal output by the key detection module (2) and then change a control mode started in the processing module (3), and the processing module (3) outputs a control signal after a set condition is met;

the driving module (4) is connected with the processing module (3), and the driving module (4) is configured to receive a control signal output by the processing module (3) and then drive the relay to act;

the system further comprises a display module (5), wherein the display module (5) is connected with the processing module (3), and the display module (5) is configured to display parameter information output by the processing module (3) after receiving a control signal;

the display module (5) comprises a nixie tube display unit (51), and the nixie tube display unit (51) is configured to display setting time information and remaining time information after receiving a control signal;

the nixie tube display unit (51) adopts a 74HC595 chip;

the display module (5) comprises an LED indication unit (52), and the LED indication unit (52) is configured to display selected channel information, time unit information and relay switch indication information after receiving a control signal;

the LED indication unit (52) adopts a 74HC595 chip;

the driving module (4) comprises a photoelectric coupler, a first resistor, a second resistor, a third resistor, a triode, a relay and a jumper interface, wherein a first pin of the photoelectric coupler is connected with a power supply through the first resistor, a second pin of the photoelectric coupler is connected with the processing module (3), a third pin of the photoelectric coupler is connected with a base electrode of the triode through the second resistor, a fourth pin of the photoelectric coupler is connected with the power supply, the third resistor is connected in series between the base electrode of the triode and an emitter electrode of the triode, the emitter electrode of the triode is grounded, a driving end of the relay is connected in series between a collector electrode of the triode and the power supply, a moving end of the relay is connected with a first pin of the jumper interface, and two fixed ends of the relay are correspondingly connected with the second pin and the third pin of the jumper interface.

2. A time relay control device according to claim 1, characterized in that the processing module (3) comprises a processing chip, a clock circuit, a reset circuit and a real time clock RTC circuit.