CN107966917B

CN107966917B - Intelligent time sequence controller

Info

Publication number: CN107966917B
Application number: CN201810087094.9A
Authority: CN
Inventors: 王建平; 冯莉; 汤晓瞳
Original assignee: Sciencesea Electronics Co ltd
Current assignee: Sciencesea Electronics Co ltd
Priority date: 2018-01-30
Filing date: 2018-01-30
Publication date: 2023-10-20
Anticipated expiration: 2038-01-30
Also published as: CN107966917A

Abstract

The invention relates to the technical field of intelligent control, in particular to an intelligent time sequence controller, wherein a switching value acquisition and execution module can be remotely connected and sends signal instructions to a button, an instruction relay and a clock source; the button is connected with the instruction relay box and the control switch into a mains supply, the button is electrically connected with the instruction relay towards the photoelectric isolation module, and the control switch is electrically connected with the switch power supply; the photoelectric isolation module, the transistor grouping switch, the pulse distributors of the groups and the controllable silicon switch groups are sequentially connected in a signal mode, and the transistor grouping switch feeds back an operation state signal to the switching value acquisition execution module; the switch power supply, the pulse distributor and the relay execution group are connected through direct current; the relay performs group access to the mains supply to supply it. The controller controls the signal photoelectric isolation, can automatically adjust the time sequence interval, and can realize remote monitoring and control.

Description

Intelligent time sequence controller

Technical Field

The invention relates to the technical field of intelligent control, in particular to an intelligent time sequence controller.

Background

The current LED large screen is generally powered by a switch power supply, and the capacitor charging current of the switch power supply is very large at the moment of switching on, so that the circuit or the upper-level idle trip often causes a small-range local power failure. Therefore, for large and medium-sized LED display screens, the staged start must be performed in time sequence. The common time sequence controller adopted by the existing large and medium-sized LED display screen has the defects of single function, limited road number, inconvenient adjustment and the like.

Disclosure of Invention

The invention provides an intelligent time sequence controller, which aims to solve the problem that the current LED display screen is started to cause tripping of a loop or an upper-level air switch to cause small-range local power failure.

The invention discloses an intelligent time sequence controller, which is characterized by comprising a switching value acquisition execution module, a button and instruction relay, a photoelectric isolation module, a transistor grouping switch, a pulse distributor, a silicon controlled switch group and a relay execution group, wherein: the switching value acquisition execution module is remotely connected through a 485 bus, sends a signal instruction to the button, the instruction relay and the clock source, and is connected with the control switch through an isolated diode; the button is connected with the instruction relay box and the control switch into a mains supply, the button is electrically connected with the instruction relay towards the photoelectric isolation module, and the control switch is electrically connected with the switch power supply; the photoelectric isolation module, the transistor grouping switch, the pulse distributors of the groups and the controllable silicon switch groups are sequentially connected in a signal mode, and the transistor grouping switch feeds back an operation state signal to the switching value acquisition execution module; the switch power supply, the pulse distributor and the relay execute weak current connection; the relay execution group is connected with a mains supply to supply power to the electric appliances in the execution group, and the relay execution group feeds back the running state signals to the switching value acquisition execution module through the photoelectric detection module.

The intelligent time sequence controller is also provided with a detection comparator, the detection comparator adopts a multifunctional electric instrument, the detection end of the detection comparator is arranged at the execution group position of the mains supply access relay, and the signal output end of the detection comparator is simultaneously connected with the clock source and the silicon controlled switch group and is used for sending a clock regulating signal to the clock source and sending an overload protection signal to the silicon controlled switch group.

The pulse distributor is provided with a plurality of expansion ports, and each expansion port is connected with the relay execution group through a thyristor switch group.

The controller is suitable for all large, medium and small power supply equipment which needs to be automatically distributed according to time sequence: such as high-power running water lamps, time sequence starting distribution of a conference system, time sequence starting of an LED large screen and other grading starting systems needing to avoid starting impact current. Compared with the traditional time sequence controller, the controller obtains the impulse current through the detection comparator and sends out a signal from a clock source, and automatically adjusts the time sequence interval; the front stage of the control signal adopts photoelectric isolation and the rear stage adopts relay isolation, so that the safety and reliability of the control system are ensured; the pulse distributor is provided with a plurality of expansion ports, each expansion port is connected with the relay execution group through the thyristor switch group, the number of paths and current can be expanded at will, and meanwhile, the respective control of a plurality of relay execution units is realized, the remote monitoring and the control can be realized, and the defects that the common time sequence controller is single in function, inconvenient to adjust and the like are overcome.

Drawings

Fig. 1 is a logic circuit diagram of the present invention.

Detailed Description

Example 1: the intelligent time sequence controller is characterized by comprising a switching value acquisition execution module, a button, an instruction relay, a photoelectric isolation module, a transistor grouping switch, a pulse distributor, a silicon controlled switch group and a relay execution group, wherein: the switching value acquisition execution module is remotely connected through a 485 bus, sends out signal instructions to the button, the instruction relay and the clock source, and is connected with the control switch through a diode; the button is connected with the instruction relay box and the control switch into a mains supply, the button is electrically connected with the instruction relay towards the photoelectric isolation module, and the control switch is electrically connected with the switch power supply; the photoelectric isolation module, the transistor grouping switch, the pulse distributors of the groups and the controllable silicon switch groups are sequentially connected in a signal mode, and the transistor grouping switch feeds back an operation state signal to the switching value acquisition execution module; the switch power supply, the pulse distributor and the relay execution group are connected through direct current; the pulse distributor is provided with a plurality of expansion ports, and each expansion port is connected with the relay execution group through a thyristor switch group; the relay execution group is connected with a mains supply to supply power to the relay execution group, and the relay execution group feeds back an operation state signal to the switching value acquisition execution module. The intelligent time sequence controller is also provided with a detection comparator, the detection end of the detection comparator is arranged at the position of the execution group of the mains supply access relay, and the signal output end of the detection comparator is simultaneously connected with the clock source and the controllable silicon switch group and is used for sending a clock regulating signal to the clock source and sending an overload protection signal to the controllable silicon switch group.

Optimally, the switching value acquisition execution module adopts a HHC-R414D switching value acquisition module. The HHC-R414D switching value acquisition module is provided with a start bit, eight data bits and a stop bit, and invalid check bits, and can be remotely controlled through RS485 communication and independently or simultaneously controlled and combined in sequence by manual buttons to perform mutual noninterference on multiple groups of relay execution groups.

The clock source adopts an NE555 clock source, and the output of the detection comparator 0-10V carries out voltage-controlled automatic adjustment on the clock source to realize the time sequence period, so that the equipment can carry out real-time adjustment on the basis of original setting according to the power consumption.

The photoelectric isolation module adopts YLP620-4 photoelectric isolation module, the withstand voltage is more than 2500V, and the safe operation of the electronic circuit is ensured.

The execution relay adopts a JQX-38F high-power relay, has good safety protection performance and convenient replacement, and adopts high-performance aviation plugs (input 100A level/output 50A level) for input and output, so that the system becomes independent equipment which can be conveniently separated from a power distribution cabinet or a train head cabinet.

The embodiment is only a part of the implementation modes of the invention, and the specification and the model of the circuit components are only the optimal solution based on the operation efficiency and the cost control at present, and all that is required is to adopt the structure disclosed by the invention, so that the circuit components fall into the protection scope of the invention.

Claims

1. The intelligent time sequence controller is characterized by comprising a switching value acquisition execution module, a button, an instruction relay, a photoelectric isolation module, a transistor grouping switch, a pulse distributor, a silicon controlled switch group and a relay execution group, wherein: the switching value acquisition execution module is remotely connected through a 485 bus, sends out signal instructions to the button, the instruction relay and the clock source, and is connected with the control switch through a diode; the button is connected with the instruction relay box and the control switch into a mains supply, the button is electrically connected with the instruction relay towards the photoelectric isolation module, and the control switch is electrically connected with the switch power supply; the photoelectric isolation module, the transistor grouping switch, the pulse distributors of the groups and the controllable silicon switch groups are sequentially connected in a signal mode, and the transistor grouping switch feeds back an operation state signal to the switching value acquisition execution module; the switch power supply, the pulse distributor and the relay execute weak current connection; the relay execution group is connected with a mains supply to supply power for an electric appliance in the actuator, and feeds back an operation state signal to the switching value acquisition execution module through the photoelectric detection module; the controller is also provided with a detection comparator, the detection comparator adopts a multifunctional electric instrument, a detection end of the detection comparator is arranged at the position of an execution group of the mains supply access relay, and a signal output end of the detection comparator is simultaneously connected with a clock source and a controllable silicon switch group and is used for sending a clock adjusting signal to the clock source and sending an overload protection signal to the controllable silicon switch group; the pulse distributor is provided with a plurality of expansion ports, and each expansion port is connected with the relay execution group through a thyristor switch group.