CN204389939U

CN204389939U - AC solid relay intelligent control system

Info

Publication number: CN204389939U
Application number: CN201420816028.8U
Authority: CN
Inventors: 张洪; 孙春龙; 杜汶励
Original assignee: Jiangnan University
Current assignee: Jiangnan University
Priority date: 2014-12-19
Filing date: 2014-12-19
Publication date: 2015-06-10
Anticipated expiration: 2024-12-19

Abstract

The utility model is a kind of intelligent control system of ac solid relay, comprise load module, rectification module, AD conversion module, voltage control module, power module, intelligent switch module, wireless sensing module, thermal module, it is characterized in that: central processing unit accepts the signal of programmable logic controller (PLC), the electric current that the conversion of rectification module commutated current mutual inductor is come, and convert thereof into voltage, the value that central processing unit accepts voltage judges, the lamp of design employing three colors carries out the instruction to field condition, indicate with the flicker of different lamp or cut-off when there is different situation, and the data obtained are passed to by wireless module the monitoring that host computer carries out field data by central processing unit.The intelligent controller of this novel ac solid relay has following advantage: the more the situation of planting can carry out the reaction implemented: comprise load cut-off; load short circuits; solid-state relay short circuit; overload; the situations such as temperature variation is abnormal, the response time is fast, and trip time consistance is good; there is short trouble defencive function, without life-span number of times restriction.

Description

Ac solid relay intelligent control system

Technical field

The utility model relates to a kind of novel ac solid relay intelligent control system, and it can be used for Mechatronic control system and programmable logic control system.

Background technology

Along with the high speed development of electronics, computer technology, increasing considerably of onboard electrical equipment, has had higher requirement to the control of electrical load.In order to adapt to new development need, studying novel electrical load control system becomes the task of top priority.

In current Mechatronic control system and distribution system, generally there are two kinds of formulas to the control of electrical load: isolating switch and solid-state relay.These two kinds traditional control modes have a lot of not enough place: as guard time is slow, the life-span is low, do not possess health control and initiatively implementing monitoring function.

Utility model content

The purpose of this utility model is to provide a kind of novel ac solid relay intelligent control system, and solve prior art guard time long, the life-span is short, does not possess the problems such as health control.

To achieve these goals, the technical solution of the utility model is as follows: a kind of ac solid relay intelligent control system, comprise mutual inductor module, rectification module, AD conversion module, voltage control module, power module, temperature control modules, solid state relay module, wireless module, it is characterized in that: the alternating current of 2-50A is converted into measurable voltage through mutual inductor module and rectification module, voltage changes into AD value through AD conversion module, power module primary responsibility is powered to control system, thermal module and voltage control module are mainly used to magnitude of voltage and the temperature of monitoring solid state relay module, during normal operation, if there is the situation of open circuit or short circuit, the lamp of design employing three colors is red, yellow, the green instruction carried out field condition, green light represents that control signal exists, amber light represents in loop have electric current, malfunction indicator lamp during red light, when a short circuit occurs, greenish-yellow lamp is bright, red light quick flashing, and when there is part open circuit, greenish-yellow lamp is bright, and red light dodges slowly, and when there is open circuit, green light, amber light goes out, red light quick flashing.

Accompanying drawing explanation

Fig. 1 is overall hardware system structure schematic diagram of the present utility model.

Fig. 2 is overall software system structure schematic diagram of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is described.

In FIG, work as system electrification, this time, by outside or by programmable logic controller (PLC) to central processing unit signal, carry out initial demarcation.If do not demarcated, when first time uses, amber light in status indicator lamp and green light can symmetrically glimmer, represent that present system is not in running order, use if not first time, system can read this data from the storage space of data, because data exist inside EEPROM, even if so power down also can retain data.

The method of demarcation can be found out in fig. 2, first a signal more than 3 seconds will be given, system will force output signal to solid-state relay in the meantime, solid-state relay is caused to force conducting, and by electric current now, changed by mutual inductor, process to central processing unit, status indicator lamp amber light and green light can glimmer fast in the meantime, after time of signal was more than 3 seconds, central processing unit, by this signal write EEPROM, is kept, when normally running, central processing unit from value inside EEPROM out.If the normal value preserved exceeds this scope of 2-50A, preserve numerical value invalid, need again preserve.Data are passed to host computer by wireless module and show by central processing unit.

When normally working, amber light and red light are in always bright state, if green light glimmers at a slow speed suddenly, illustrate that now, open circuit appears in circuit part, if now amber light extinguishes, green light fast blink, illustrates now circuit breaker.If green light fast blink, amber light or light yellow, illustrate now circuit overloads.

If programmable logic controller (PLC) does not send signal to central processing unit, system is not also in debugging mode, if now solid-state relay conducting, that illustrates that short circuit appears in solid-state relay, and this is that system will only have when red, carrys out indication mechanism fault with this.

More than describing is to explanation of the present utility model, and be not the restriction to utility model, the utility model limited range, see claim, within protection domain of the present utility model, can do any type of amendment.

Claims

1. an ac solid relay intelligent control system, comprise mutual inductor module, rectification module, AD conversion module, voltage control module, power module, temperature control modules, solid state relay module, wireless module, it is characterized in that: the alternating current of 2-50A is converted into measurable voltage through mutual inductor module and rectification module, voltage changes into AD value through AD conversion module, power module primary responsibility is powered to control system, thermal module and voltage control module are mainly used to magnitude of voltage and the temperature of monitoring solid state relay module, during normal operation, if there is the situation of open circuit or short circuit, the lamp of design employing three colors is red, yellow, the green instruction carried out field condition, green light represents that control signal exists, amber light represents in loop have electric current, malfunction indicator lamp during red light, when a short circuit occurs, greenish-yellow lamp is bright, red light quick flashing, and when there is part open circuit, greenish-yellow lamp is bright, and red light dodges slowly, and when there is open circuit, green light, amber light goes out, red light quick flashing.