CN107991916A - A kind of automatic channel switching equipment - Google Patents
A kind of automatic channel switching equipment Download PDFInfo
- Publication number
- CN107991916A CN107991916A CN201710959683.7A CN201710959683A CN107991916A CN 107991916 A CN107991916 A CN 107991916A CN 201710959683 A CN201710959683 A CN 201710959683A CN 107991916 A CN107991916 A CN 107991916A
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- Prior art keywords
- relay
- circuit
- module
- switching equipment
- channel switching
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electronic Switches (AREA)
Abstract
The present invention is a kind of automatic channel switching equipment,A kind of automatic channel switching equipment,Including output module,Input module,Main control module and power supply handover module,Connected between each other on bottom plate,Telecommunication circuit in main control module communicates feedback device access state to intelligent control circuit with control terminal,Connected state detection circuit completes the judgement to device type by voltage comparator,Device type is judged that signal is sent to relay drive circuit by intelligent control circuit,So as to control the selection of relay,The input signal switching circuit for recently entering module is completed the selection of corresponding device type signal group and accesses switching equipment,The output signal switching circuit of output module completes the selection to relevant device type signal group and produces switching equipment,It is finally completed a control terminal and controls the equipment that two kinds of functions are different but interface is identical.
Description
Technical field
The present invention relates to electronic message unit technical field, more particularly to a kind of automatic channel switching equipment.
Background technology
With the rapid development of electronic technology, computer technology, electronic equipment and its related control device are more and more, and
And in order to more meet the needs of, these electronic equipments and related control device are constantly pursued with miniaturization, integrated, intelligent.
Usually there is a situation where that two locking terminal equipment control the equipment that two kinds of functions are different but interface is identical in large-scale control system at present,
Using two locking terminal equipment costs are high, occupied space volume is big, and maintain it is big, of high cost, do not meet yet miniaturization,
Integrated, intelligentized requirement, therefore it is such a to need a kind of equipment to solve the problems, such as now.
The content of the invention
It is an object of the invention in view of the above problems, providing a kind of automatic channel switching equipment.
A kind of automatic channel switching equipment, including bottom plate, be provided with the bottom plate mutually connect output module,
Input module, main control module and power supply handover module；The output module and the input module are relay module, described
Relay module is single-pole double-throw relay, and the output module includes output signal switching circuit, the input module bag
Include input signal switching circuit；The main control module includes intelligent control circuit, telecommunication circuit, relay drive circuit and connects
State detection circuit, the intelligent control circuit include switching passage the microcontroller for carrying out intelligent control, the telecommunication circuit
Including the electrical level transferring chip for carrying out communication with external control terminal equipment and external equipment interacts, the relay drive circuit
Including the chip being driven to relay, the connected state detection circuit includes voltage comparator；The power supply switches mould
Block includes power supply switch circuit.
In one of the embodiments, the microcontroller of the intelligent control circuit uses the microcontroller of model ATMEGA128
Device.
In one of the embodiments, the telecommunication circuit uses the RS232 serial ports conducts of MAX232 electrical level transferring chips
Device communication interface.
In one of the embodiments, the relay drive circuit uses driving of the ULN2803 chips as relay
Circuit.
In one of the embodiments, the voltage comparator includes OP07 amplifier chips and resistor voltage divider circuit, described
Microcontroller connection relay CHD0 in parallel, relay CHD1, relay CHD2, relay CHD3, relay CHD4, relay
Device CHD5, the relay CHD0, relay CHD1, relay CHD2, relay CHD3, relay CHD4, relay CHD5
Contact be respectively connected to voltage comparator.
In one of the embodiments, the OP07 amplifier chips connection slide rheostat RE 0.
In one of the embodiments, the power supply switch circuit includes single-knife dual-close large power relay.
In conclusion a kind of automatic channel switching equipment, including output module, input module, main control module and power supply are cut
Block is changed the mold, is connected between each other on bottom plate, the telecommunication circuit in main control module and control terminal communication feedback device access shape
State to intelligent control circuit, connected state detection circuit completes the judgement to device type, intelligent control by voltage comparator
Device type is judged that signal is sent to relay drive circuit by circuit, so as to control the selection of relay, recently enters module
Input signal switching circuit complete by the selection of corresponding device type signal group and to access switching equipment, the output of output module
Signal switching circuit completes the selection to relevant device type signal group and produces switching equipment, is finally completed a control terminal
The equipment that two kinds of functions of control are different but interface is identical.
Brief description of the drawings
Fig. 1 is the internal structure schematic diagram of one embodiment of the invention；
Fig. 2 is the functional block diagram of one embodiment of the invention；
Fig. 3 is the intelligent control circuit schematic diagram of the main control module of one embodiment of the invention；
Fig. 4 is the telecommunication circuit schematic diagram of the main control module of one embodiment of the invention；
Fig. 5 is the relay drive circuit schematic diagram of the main control module of one embodiment of the invention；
Fig. 6 is the connected state detection circuit schematic diagram of the main control module of one embodiment of the invention；
Fig. 7 is the input module work power circuit schematic diagram of one embodiment of the invention；
Fig. 8 is the input module input signal switching circuit schematic diagram of one embodiment of the invention；
Fig. 9 is the output module output signal switching circuit schematic diagram of one embodiment of the invention；
Figure 10 is the power supply handover module power supply switch circuit schematic diagram of one embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention is described in further detail.
As shown in Fig. 1-Figure 10, a kind of automatic channel switching equipment, including bottom plate, is provided with phase on the bottom plate
Output module 1, input module 2, main control module 3 and the power supply handover module 4 mutually connected；The output module 1 and the input
Module 2 is relay module, and the relay module is single-pole double-throw relay, and the output module 1, which includes output, to be believed
Number switching circuit, the input module 2 include input signal switching circuit；The main control module 3 includes intelligent control circuit, leads to
Believe circuit, relay drive circuit and connected state detection circuit, the intelligent control circuit, which includes switching passage, carries out intelligence
The microcontroller that can be controlled, the telecommunication circuit include the level for carrying out communication with external control terminal equipment and external equipment interacts
Conversion chip, the relay drive circuit include the chip being driven to relay, the connected state detection circuit bag
Include voltage comparator；The power supply handover module 4 includes power supply switch circuit.
As shown in Fig. 2, the telecommunication circuit in main control module 3 communicates feedback device access state to intelligent control with control terminal
Circuit processed, connected state detection circuit complete judgement to device type by voltage comparator, and intelligent control circuit is by equipment
Type judges that signal is sent to relay drive circuit, so as to control the selection of relay, recently enters the input signal of module 2
Switching circuit is completed the selection of corresponding device type signal group and accesses switching equipment, the output signal switching of output module 1
Circuit completes the selection to relevant device type signal group and produces switching equipment, is finally completed a control terminal and controls two kinds
The equipment that function is different but interface is identical.
As shown in figure 3, in one of the embodiments, the microcontroller of the intelligent control circuit uses model
The microcontroller of ATMEGA128.ATMEGA128 has the characteristics that stability is high, is widely used, and uses ATMEGA128 microcontrollers
Device realizes the intelligent control to channel switching equipment as core controller.
As shown in figure 4, in one of the embodiments, the telecommunication circuit uses MAX232 electrical level transferring chips
RS232 serial ports is as device communication interface.Channel switching equipment is used as using the RS232 serial ports of MAX232 electrical level transferring chips and set
Standby communication interface, communicates with external control terminal equipment, realizes the data interaction of channel switching equipment and external equipment.
As shown in figure 5, in one of the embodiments, the relay drive circuit using ULN2803 chips be used as after
The drive circuit of electric appliance.Channel switching equipment uses drive circuit of the ULN2803 chips as relay, realizes to main control module
3rd, input module 2, output module 1, the relay driving of power supply handover module 4.
As shown in fig. 6, in one of the embodiments, the voltage comparator includes OP07 amplifier chips and electric resistance partial pressure
Circuit, microcontroller connection relay CHD0 in parallel, relay CHD1, relay CHD2, relay CHD3, relay
CHD4, relay CHD5, the relay CHD0, relay CHD1, relay CHD2, relay CHD3, relay CHD4, after
The contact of electric appliance CHD5 is respectively connected to voltage comparator.Connected state detection circuit by voltage comparator it is in parallel with six groups after
Electric appliance CHD0, relay CHD1, relay CHD2, relay CHD3, relay CHD4, relay CHD5 are respectively closed disconnected successively
To open, 6 groups of contacts in access device interface are respectively connected to voltage comparator, 3 feet of OP07 amplifiers are as Voltage Reference end, and 2
Foot compares end as control source, and after relay closes, if contact connects, the output of 6 foot of amplifier is high level, if contact does not connect
Logical, then 6 foot of amplifier output is low level, so that reach the detection to connected state, and pass through contact connected state different groups
Close, complete the judgement to device type.
In one of the embodiments, the OP07 amplifier chips connection slide rheostat RE 0.Microprocessor control after
Electric appliance CHD0, relay CHD1, relay CHD2, relay CHD3, relay CHD4, relay CHD5 are respectively closed disconnected successively
Open, 6 groups of contacts in access device interface are respectively connected to voltage comparator, 3 feet of OP07 amplifiers are as Voltage Reference end, energy
Thresholding is enough referred to by 0 adjustable voltage of slide rheostat RE.
As shown in Figure 10, in one of the embodiments, the power supply switch circuit includes single-knife dual-close large power relay
Device.Demand of the access distinct device to power supply is disclosure satisfy that using single-knife dual-close large power relay.Power supply switch circuit at the same time
Complete the control that the power supply of the type equipment is powered and powered off.
As shown in fig. 7,2 equipment of input module works, power circuit provides for board card module work inside channel switching equipment
Power supply.
As shown in figure 8,2 input signal switching circuit of input module is completed the selection of corresponding device type signal group and connect
Enter switching equipment.
Complete the selection of corresponding device type signal group and turn as shown in figure 9, output module 1 exports signal switching circuit
Go out switching equipment.
The technical program is made of four circuit modules altogether, includes main control module 3, input module 2, output module 1, power supply
Handover module 4, is attached by bottom plate.Main control module 3 includes RS-232 communication functions, is responsible for feeding back with control terminal communication
Apparatus access state；Detection of connectivity function, is responsible for the type of detection access device；Relay control function, it is defeated to be responsible for control
Enter module 2 and output module 1, the signal transmission passage of corresponding device type is connected.Input module 2 and output module 1 be after
Electrical appliance module, is single-pole double-throw relay, is controlled by main control module 3, will be inputted using input module 2 and output module 1
Signalling channel is connected with output signal channel by bottom plate, to complete the connection of control signal.Power supply handover module 4 uses
Single-knife dual-close large power relay, to meet to access the needs of distinct device is to power supply.Pass through four circuit modules in the equipment
Be applied in combination, complete control terminal and control the equipment that two kinds of functions are different but interface is identical, so as to reach reduction control
System cost, satisfaction minimizes, is integrated, intelligentized purpose.
Architectural feature the foregoing is merely the specific embodiment of the present invention, but the present invention is not limited to this, any
In the field of the invention, the change or modification made are encompassed by the scope of the claims of the present invention those skilled in the art.
Claims (7)
- A kind of 1. automatic channel switching equipment, it is characterised in that：It is provided with what is mutually connected including bottom plate, on the bottom plate Output module, input module, main control module and power supply handover module；The output module and the input module are relay Module, the relay module are single-pole double-throw relay, and the output module includes output signal switching circuit, described defeated Entering module includes input signal switching circuit；The main control module includes intelligent control circuit, telecommunication circuit, relay driving electricity Road and connected state detection circuit, the intelligent control circuit includes switching passage the microcontroller for carrying out intelligent control, described Telecommunication circuit includes the electrical level transferring chip for carrying out communication with external control terminal equipment and external equipment interacts, the relay Drive circuit includes the chip being driven to relay, and the connected state detection circuit includes voltage comparator；The electricity Source handover module includes power supply switch circuit.
- A kind of 2. automatic channel switching equipment according to claim 1, it is characterised in that：The monolithic of the intelligent control circuit Machine uses the microcontroller of model ATMEGA128.
- A kind of 3. automatic channel switching equipment according to claim 1, it is characterised in that：The telecommunication circuit uses MAX232 The RS232 serial ports of electrical level transferring chip is as device communication interface.
- A kind of 4. automatic channel switching equipment according to claim 1, it is characterised in that：The relay drive circuit uses Drive circuit of the ULN2803 chips as relay.
- A kind of 5. automatic channel switching equipment according to claim 2, it is characterised in that：The voltage comparator includes OP07 Amplifier chip and resistor voltage divider circuit, microcontroller connection relay CHD0 in parallel, relay CHD1, relay CHD2, relay CHD3, relay CHD4, relay CHD5, the relay CHD0, relay CHD1, relay CHD2, after Electric appliance CHD3, relay CHD4, the contact of relay CHD5 are respectively connected to voltage comparator.
- A kind of 6. automatic channel switching equipment according to claim 5, it is characterised in that：The OP07 amplifier chips connection is slided Dynamic rheostat RE0.
- A kind of 7. automatic channel switching equipment according to claim 1, it is characterised in that：The power supply switch circuit includes single Dpdt double-pole double-throw (DPDT) high power relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710959683.7A CN107991916A (en) | 2017-10-16 | 2017-10-16 | A kind of automatic channel switching equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710959683.7A CN107991916A (en) | 2017-10-16 | 2017-10-16 | A kind of automatic channel switching equipment |
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| Publication Number | Publication Date |
|---|---|
| CN107991916A true CN107991916A (en) | 2018-05-04 |
Family
ID=62028896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710959683.7A Pending CN107991916A (en) | 2017-10-16 | 2017-10-16 | A kind of automatic channel switching equipment |
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| CN (1) | CN107991916A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108715173A (en) * | 2018-08-06 | 2018-10-30 | 河南思维轨道交通技术研究院有限公司 | Interaction automatic control device and system |
| CN109031999A (en) * | 2018-05-30 | 2018-12-18 | 浙江巨磁智能技术有限公司 | It can cascade channel switching system and its switching method |
| CN112797636A (en) * | 2020-12-25 | 2021-05-14 | 青岛经济技术开发区海尔热水器有限公司 | Computer board control method and device, computer board and water heater |
| CN113655752A (en) * | 2021-08-16 | 2021-11-16 | 珠海格力电器股份有限公司 | Two-bus equipment, self-checking method thereof and building automatic control system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031999A (en) * | 2018-05-30 | 2018-12-18 | 浙江巨磁智能技术有限公司 | It can cascade channel switching system and its switching method |
| CN108715173A (en) * | 2018-08-06 | 2018-10-30 | 河南思维轨道交通技术研究院有限公司 | Interaction automatic control device and system |
| CN112797636A (en) * | 2020-12-25 | 2021-05-14 | 青岛经济技术开发区海尔热水器有限公司 | Computer board control method and device, computer board and water heater |
| CN112797636B (en) * | 2020-12-25 | 2022-12-13 | 青岛经济技术开发区海尔热水器有限公司 | Computer board control method and device, computer board and water heater |
| CN113655752A (en) * | 2021-08-16 | 2021-11-16 | 珠海格力电器股份有限公司 | Two-bus equipment, self-checking method thereof and building automatic control system |
| CN113655752B (en) * | 2021-08-16 | 2022-11-25 | 珠海格力电器股份有限公司 | Two-bus equipment, self-checking method thereof and building automatic control system |
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