RU189611U1 - Software-temporary device based on the controller - Google Patents

Abstract

The utility model "Program-temporary device based on a controlling controller" refers to the field of automation and computer technology. The device is intended for switching electrical circuits after a certain (specified) time in civil, industrial and special-purpose products. The technical result achieved by the proposed utility model is to improve the electrical and operational characteristics of the program-time device taken as a prototype, namely, to increase the reliability of the device through the use of , the ability to implement the indication of the progress of the program when connected to the LED indicator, the presence of acknowledgment (Reaction to the disappearance of receipt), the presence of reversibility (countdown when disconnected actuators), the ability to transmit the necessary information to the PC through the channel RS-232/422/485 can manage multiple execution units, the ability to adjust for a particular task (device). An additional technical result, when using the proposed utility model, is the use of the basic supporting structure for different types of devices (unification). This technical result is achieved due to the fact that in a known device consisting of a relay, mechanical devices and discrete microcircuits replaced mechanical elements and discrete microcircuits on the optorel and microcontroller, as well as additionally introduced buffers and level converters with the above connections.

Description

The invention relates to the field of automation and computing. The device is intended for switching electrical circuits after a certain (specified) time in the production of civil, industrial and special purposes.

From patent sources known device firmware control [1]. The specified device contains a register of micro-commands, a block of memory of micro-commands, an address switch, a switch of conditions, a local control block, mode setting inputs, an output of micro-operations of the device. In turn, the local control unit contains the elements AND-NOT, RS-triggers, elements AND, elements NOT, elements OR-NOT, one-shot, D-trigger.

The disadvantage of the analog is its low reliability, due to the large number of discrete elements that ensure the formation of the logic of the device. The input and output stages of this firmware control device are based on low-voltage logic, which is susceptible to pickups from the actuators at the time of switching.

The closest known analogue that serves as the prototype of the stated program-temporary device is the microelectronic program-temporary device [2], shown in FIG. 1. The device contains an electronic unit that consists of two printed circuit boards (board 1 and board 2), a contact input (CV) and an external connection terminal (KVP). The prototype has the ability to control only one actuator (DUT). For the best understanding of FIG. 1 shows a prototype circuit with a single DUT. The input of the device is KVP to one terminal, from which the supply voltage is +27 V, and from the other terminals commands (signals) are output. On board 1 is a generator. On board 2, there is a frequency divider (DF), a pulse counter (SI), a time delay node (HIA), and a time interval switch (DIF). Boards 1 and 2, KVP, KB and IU are electrically and mechanically interconnected.

In the specified device, the switching of the output circuit occurs at the time of a given time delay. The countdown of the time delay starts from the moment the power is turned on, and when it is turned off, the device returns to its original state.

When the supply voltage is applied to the KVP, the generator impulses arrive at the QH and then into the SI. UVV analyzes the state of the operating SI and generates a signal at the time of the end of the time interval set by the MBP. The signal from the air-blast comes through the KB to the DUT.

The prototype has the following disadvantages:

low reliability due to the use of relays with a limited number of switching and contact bounce, mechanical devices (spring, switches, etc.) that lose their physical properties at low temperatures;

the inability to track the progress of the program;

lack of handshaking (the device continues counting regardless of whether the actuator actually worked);

the inability to reverse;

the inability to interface with a personal electronic computing machine (PC) and other devices;

control only one IU;

the inability to adjust to a specific task (device).

Achievable technical result of the proposed utility model is to improve the electrical and operational characteristics of the program-temporary device taken as a prototype, namely increasing the reliability of the device through the use of an optorele, the ability to implement an indication of the progress of the program when connected to an LED indicator, the presence of acknowledgment (reaction to the disappearance of the receipt) , the presence of reversibility (countdown when disconnecting actuators), the ability to transfer the necessary information on a PC via RS-232/422/485 channel, the ability to control several IUs, the ability to adjust to a specific task (device). An additional technical result, when using the proposed utility model, is the use of the basic supporting structure for different types of devices (unification).

This technical result is achieved by the fact that in a known device, comprising a housing, inside which is an electronic circuit comprising a generator, a frequency divider (DF), a pulse counter (SI), a time delay node (UVB), a time switch (PVI), an executive devices (IU) and provided with +27 V power supply, the generator, DC, SI and UVV are connected in series with each other, and the output of the PVI is connected to another input of the UVV, N-1 I & C, N input devices are added to the electronic circuit switching (CC), made on the basis of optorele, N buffers, N level converters (PU), N output switching devices (CC) on the basis of optorele, secondary power supply (PSI), analog-to-digital converter (ADC) module, Universal Asynchronous module Receiver-Transmitter (UART), interface module with LED indicator and RS-232/422/485 interface module, the generator, DC, SI, UVV, PVI, ADC module and UART module are based on the microcontroller, the first input of the microcontroller is made with the ability to receive an analog signal, with N PU, N output MC, N IU, N input Y The K and N buffers are connected in series, the N outputs of the buffers are connected to 2 ÷ n inputs of the microcontroller, and the input-output of the microcontroller is connected to the input-output of the RS-B interface module

232/422/485, the output of which is the interface codogram with the PC, the first output of the microcontroller is connected simultaneously with the inputs N PU, and the second output of the microcontroller is connected to the input of the interface module with the LED indicator, and the output for the interface module with the LED indicator produces signals to display on the LED indicator, and the outputs of the output control codes are the outputs of the entire software-temporary device, and the inputs, in turn, are the inputs of the control inputs, and the entire device is made on the same basic supporting structure.

The number of inputs and outputs of the software-temporary device is limited by the number of connector pins. For the used carrier structure, the maximum number of connector contacts is 224. Thus, the maximum number of inputs and outputs is 96 each. The remaining contacts remain behind the power supply voltage, analog signals, outputs to interface with PC and outputs to LED indicator.

Input MCs are intended for switching voltage of +27 V and issuing +5 V. Output CCs are intended for switching +5 V and issuing +27 V.

IWEP is designed to provide power supply voltage of +27 V and +5 V.

In the proposed utility model, the number "N" can take values from 1 to 96.

Consider the composition of the claimed device.

FIG. 2 shows the block diagram of the software-temporary device based on the controlling controller, where indicated:

3 - generator;

4 - frequency divider (DCH);

5 - pulse counter (SI);

6 - node time delay (SW);

7 - time interval switch (PVI);

8 - actuator (IU);

9 - input switching device (UK);

10 - buffer;

11 - the source of secondary power supply (IVEP);

12 - analog-to-digital conversion module (ADC);

13 - Universal Asynchronous Receiver-Transmitter (UART) module (universal asynchronous transceiver);

14 - microcontroller;

15 - level converter (PU);

16 - output switching device (UK);

17 - interface module with LED-indicator;

18 - RS-232/422/485 interface module.

The utility model consists of generator 3, DCH 4, SI 5, UVB 6, PVI 7, ADC module 12 and UART module 13, made on the basis of the microcontroller 14, and the whole device is made on one basic supporting structure and also contains N IU 8, as well as in the inventive device, N input CCs 9, N buffers 10, N PU 15, N output UK 16, PSI 11, interface module with LED indicator 17 and RS-232/422/485 interface module 18 are added.

The principle of operation of the proposed utility model is as follows.

IVEP 11 generates a voltage of + (5 ± 0.5) V to power the microcontroller 14 and the control circuits of the device, and a voltage of + (27 ± 3) V is generated for the N output UK 16. The rated power supply voltage is +27 V. IVEP 11 functions stably in the range of input voltages from +18 V to +32 V.

When a power supply voltage is applied to the device, the microcontroller 14, after a predetermined time delay, generates a control signal (SU) at the DUT 8. The SU is formed in the levels of the primary supply voltage. In order to ensure the immunity of the microcontroller 14 and the control circuits, the input and output MCs provide galvanic isolation from the PS 8.

PS 8 returns a receipt (KV) upon receipt of the SR, indicating that PS 8 is switched (the command has entered the PS).

The receipt from PS 8 arrives at the input CM control unit 9. Next, the device, via a time delay generated by the microcontroller 14, issues a SU to one or more PS 8, depending on the specified program.

In the absence of a receipt from PS 8, a malfunction signal is issued, after which further program flow is blocked until a receipt appears.

The software algorithm of the microcontroller 14 is implemented as follows. The microcontroller 14 starts an internal timer, which forms 3 time intervals with a duration of 0.5 seconds from the frequency of the internal oscillator, which form the internal hardware interrupt signals.

To control each of the PS 8, a variable is reserved in which the number of incoming interrupts is stored when the start of the countdown of the corresponding PS 8 is started. At the same time, the count of the number of interrupts is organized in the same way simultaneously for several PS 8.

At the moment of switching on the device, all variable accounts of the number of interruptions are reset. Then the timer is initialized, after which interrupts from it are resolved. When reaching SI 5, corresponding to PS 8, the required time delay value with a timer increment of 0.5 seconds (the required number of corresponding intervals), a command is issued to turn on the PS 8 required.

The first PS 8 generates a receipt of the inclusion, which is fed to the input of the first input of the Criminal Code 9.

As the input and output of the criminal code is used optorele. The advantages of the optolera are a small control current, the absence of electromagnetic interference during the switching of the consumer, an insulation voltage reaching 600 V and a wide range of operating temperatures.

Since PS 8 is often an electromagnetic device of the relay or contactor type, a receipt is formed from under its own pair of contacts, which are “contact bounce” at the time of switching.

The exception of the “bounce of contacts” is carried out at the program level by analyzing the presence of a stable receipt signal for at least 100 milliseconds, otherwise microcontroller 14 considers that the receipt from PS 8 has not been received.

Upon reaching the current PS 8 variable of the required value and obtaining a stable receipt from it, the command for enabling the time interval for switching on the next PS 8 is generated using a similar algorithm, i.e. The corresponding variable is allowed to count the number of entries in the interrupt and it is incremented at each entry in the interrupt.

Due to the presence of the A / D converter module 12, the analog signal is used as the input signal of the IQ 8.

At the same time, with the help of the ADC module 12, a threshold device is formed at the program level informing the system that after switching the PS 8 reached the appropriate voltage threshold and the resolution to enable the subsequent PS 8 was formed.

Disabling PS 8 happens in a similar way. For each RI 8, a variable is generated programmatically (at the software level), which is also incremented at each input to the interrupt during the removal of a command to disable RI 8. When the value of the disconnect variable reaches the required value, a command is generated to relieve voltage from RR 8, and the value is reset variable responsible for the inclusion of the same PS 8.

The use of a single-chip microcontroller 14 with a built-in UART 13 module allows the exchange with a PC using an interface module via RS-232/422/485 interface 18.

The interface module with LED indicator 17 allows pairing with seven-segment LED indicators.

As a buffer 10, an 8-channel bus driver with reference resistors (mounted on the housing) is used to prevent unauthorized operation until a receipt is received for the input CM 9 optocoupler.

The PU 15 circuit is an 8-bit synchronous buffer register (with inverse control and initial setting of information), therefore the PU 15 module is implemented in the device multiple of 8 channels.

For interfacing PU 15 with the optolele, a trunk transmitter with an open-collector circuit is used, while the upper arm of the control LED of the optocoupler is energized from the secondary power source, limited in current to 10 mA, and the control signals from the microcontroller are switched by the main transmitter.

Considering that the entire element base of the device allows operating in a wide temperature range, from minus 60 ° С to + 85 ° С, the device itself functions in the same temperature range.

An additional technical result is the use of a standard basic supporting structure, which allows us to speak about the unification of the device.

In addition, the device uses only domestic element base, which is especially important in the framework of import substitution and conditions of sanctions from Western countries.

The technical advantages of the software-temporary device, implemented in accordance with FIG. 2 confirmed by tests in one of the development work.

In accordance with the above described utility model, an enterprise develops a program-temporary device based on a controlling controller for use in promising products.

Thus, due to the fact that in a known device consisting of relays, mechanical devices and discrete microcircuits, mechanical elements and discrete microcircuits were replaced on the optor and microcontroller, as well as additionally introduced buffers and level converters with the above connections, the electrical and operational characteristics were improved, Namely, the reliability of the device has been increased due to the use of the optorele, the possibility of indicating the progress of the program when connected to the LED indicator has been realized, Achievements (reaction to the disappearance of the receipt), the presence of reversibility is realized (countdown when the actuators are disconnected), the possibility of transferring the necessary information to the PC via RS-232/422/485 is implemented, the ability to control several IUs is implemented and the possibility of adjustment to a specific task is implemented (device). In addition, an additional technical result is the use of the basic supporting structure (unification).

Information sources:

1. Copyright certificate SU № 1524049, publ. 11/23/1989, application no.4336848 dated 10/08/1987. IPC G06F 9/22;

2. Faykin G.M. (RU), V.F. Kalinin (RU). The device is a software-time microelectronic. Patent of the Russian Federation for useful model No. 150842, publ. 02.27.2015, application number 2014139429 dated 09.29.2014, IPC H03K 17/28, H03K 17/296, H01H 43/02 - the prototype.

Claims (1)

A software-temporary device based on a controlling controller, comprising a housing inside which an electronic circuit is located, comprising a generator, a frequency divider (DF), a pulse counter (SI), a time-delay node (HIA), a time switch (DIF), an actuator ( IU) and provided with +27 V power supply voltage, the generator, DC, SI and UVB are connected in series with each other, and the output of the PVI is connected to another input of the UVV, characterized in that the whole device is made on the same base carrier Manuals, and N-1 I & C, N input switching devices (CC), made on the basis of optorele, N buffers, N level converters (PU), N output switching devices (CC) on the basis of optorele, secondary power supply were added to the electronic circuit , analog-to-digital converter (ADC) module, Universal Asynchronous Receiver-Transmitter (UART) module, LED interface module and RS-232/422/485 interface module, the generator, DC, SI, UVV, PVI, ADC module and the UART module are made on the basis of the microcontroller, the first input of the microcontroller is made with the possibility An analog signal is received, where N PU, N output CC, N IU, N input CC and N buffers are connected in series, the outputs of the N buffers are connected to 2 ÷ n inputs of the microcontroller, and the input-output of the microcontroller is connected to the input-output of the interface module RS- 232/422/485, the output of which is the interface mapping with PC, the first output of the microcontroller is connected simultaneously with the inputs N PU, and the second output of the microcontroller is connected to the input of the interface module with LED indicator, and the output of the interface module with LED indicator produces signals for display The indicators are on the LED indicator, and the outputs of the output control codes are the outputs of the entire software-temporary device, and the inputs, in turn, are the inputs of the control components.

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