CN109581918A - A kind of multi channel signals switching equipment and signal switching method - Google Patents
A kind of multi channel signals switching equipment and signal switching method Download PDFInfo
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- CN109581918A CN109581918A CN201811442669.0A CN201811442669A CN109581918A CN 109581918 A CN109581918 A CN 109581918A CN 201811442669 A CN201811442669 A CN 201811442669A CN 109581918 A CN109581918 A CN 109581918A
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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
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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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
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Abstract
The embodiment of the present invention provides a kind of multi channel signals switching equipment and signal switching method, wherein provided equipment includes: input interface, power management module, corsspoint switch matrix, microprocessor and output interface；Input interface and output interface are connected with corsspoint switch matrix respectively；Microprocessor is connected with corsspoint switch matrix, for receiving user instructions and controlling the corsspoint switch matrix according to the user instruction；Power management module is used to power to equipment；Wherein, corsspoint switch matrix is specially the corsspoint switch matrix chip for supporting wide input voltage.Equipment provided in an embodiment of the present invention, the core for the corsspoint switch matrix chip of wide input voltage has been used as each channel connecting and switching, compared to traditional equipment, reduce equipment volume, weight, power consumption and design difficulty, it expands signal and supports type, corsspoint switch matrix is controlled using microprocessor simultaneously, increases the convenience and flexibility that equipment uses.
Description
Technical field
The present embodiments relate to signal switching field more particularly to a kind of multi channel signals switching equipment and signal switchings
Method.
Background technique
With the fast development of industry and military technology, the complexity of each field used test system and signal transmission system
It is higher and higher, scale is increasing, signal path number is also more and more.These systems in use, are often faced with
The problem of limited resource (such as resource of frequency range, rare test equipment) is made full use of.Therefore, it is necessary in multichannel
Increase switching equipment (also known as " switch matrix ") in signal system, to realize the flexible allotment of resource, complete the channel of signal stream
Between switch.
Traditional multi channel signals switching equipment is made of the cascade of multiple Relay Switch Matrixes, a large amount of due to using
Relay so that entire, switching equipment is bulky, control circuit is complicated, the response time is long, power consumption is big, and contact endurance is short.
Meanwhile because chip is more in equipment, solder joint is more, during the Denso of circuit board, by equipment, operator's technical ability, electronics
The influence of the factors such as element welding quality and element sole mass, it is difficult to guarantee the soldering reliability of switch matrix, it is necessary to carry out
Comprehensive factory testing.
To avoid various disadvantages present in traditional switch matrix, some technical staff propose different multi channel signals
Switching method.Wherein, Wang Zhensheng of Ordnance Engineering College et al. " is based on I in paper2The bulky switch matrix design of C bus with
Realize " in describe a kind of using USB interface, utilize I2C bus transfer data, by the large size of CPLD control multiplexing devices
Switch matrix structure, switch speed with higher and preferable electric property, and the requirement of miniaturization is met, but this sets
It is standby to work independently, need to send control instruction by outer PC to realize the switching of signal stream, and system composed structure
Complexity, hardware design difficulty are high.Xu Wenxian of University of Electronic Science and Technology et al. paper " performance of analog switch matrix MT8808 and
It is proposed, which replaces traditional relay switch with analog switch matrix chip MT8808, in its application " realizes cutting for multi channel signals
Function is changed, a large amount of circuit space is saved, wiring is simplified, reduces interchannel interference, improve signal quality.But this sets
The programmed control method for counting signal switching is not flexible, and can not easily be changed at any time to the working condition of switch matrix.Application
Number for 201620367644.9 patent in, receive and parse through channel configuration-direct using microprocessor unit, then patrolled by FPGA
It collects unit and input, output end signal channel is switched over and connected according to instruction.The apparatus structure is simple, signal switching is clever
It is living, but due to the connection that it directly carries out signal path using fpga chip, so that supported signal kinds of system and electrically
Range is limited, is unable to get extensive use.
Summary of the invention
The embodiment of the present invention provides a kind of multi channel signals switching equipment and signal switching method, to solve the prior art
Middle multi channel signals switching equipment is bulky, control circuit is complicated, the response time is long, power consumption is big, and contact endurance is short, same to time-histories
Prosecutor method is not flexible, and the problem of can not easily be changed at any time to the working condition of switch matrix
In a first aspect, the embodiment of the present invention provides a kind of multi channel signals switching equipment, comprising: input interface, power supply pipe
Manage module, corsspoint switch matrix, microprocessor and output interface；
The input interface and output interface are connected with the corsspoint switch matrix respectively；
The microprocessor is connected with the corsspoint switch matrix, for receiving user instructions and according to the user instruction
Control the corsspoint switch matrix；
The power management module is used to power to equipment；
Wherein, the corsspoint switch matrix is specially the corsspoint switch matrix chip for supporting wide input voltage.
Wherein, described that power management module is specifically included: voltage conditioning chip, rechargeable lithium battery and Switching Power Supply
Module；The Switching Power Supply submodule, for external 220V alternating current to be converted to direct current and is powered to equipment；The electricity
Conditioning chip is pressed, the DC voltage for converting the Switching Power Supply submodule is modulated to the corsspoint switch matrix and described
Microprocessor required voltage.
Wherein, the power management module further include: rechargeable lithium battery is used for when no external 220V alternating current,
It powers to equipment, correspondingly, the voltage conditioning chip is also used to be that the rechargeable lithium battery is filled according to the DC voltage
Electricity.
Wherein, the equipment further include: interactive module for showing current device state, and receives the control of user's transmission
Information processed.
Wherein, the equipment further include: wireless communication module receives the user terminal for being connected with user terminal
The control instruction is simultaneously sent to the embedded microprocessor by the user instruction of transmission.
Wherein, the wireless communication module is also used to receive the device status information that the microprocessor is sent, and by institute
It states device status information and is sent to user terminal.
Second aspect, the embodiment of the present invention provide a kind of multi channel signals switching method, comprising:
Microprocessor receives user instructions, according to the input terminal slogan of the user instruction determine the user instruction come
Source, and then determine the effect position information in the user instruction；
If judgement knows that effect position information is correct, the user instruction is resolved to by intersection according to coding protocol and is opened
Close the setting information of the passage connection state of matrix；
The corsspoint switch matrix is controlled according to the setting information.
Wherein, it if effect position information errors are known in judgement, is replied to the source of the user instruction, setup failed
Information.
Wherein, the step of before the microprocessor receives user instructions, further includes: initialization corsspoint switch matrix and micro-
Processor so that all switches of the corsspoint switch matrix are all in off-state, while the microprocessor enter it is standby
Mode.
Wherein, after described the step of being controlled according to the setting information the corsspoint switch matrix, further includes:
Setting successful information is replied to the source of the user instruction.
Multi channel signals switching equipment provided in an embodiment of the present invention has used the corsspoint switch matrix core of wide input voltage
It is difficult to reduce equipment volume, weight, power consumption and design compared to traditional equipment for the core that piece connects and switches as each channel
Degree is expanded signal and supports type, while controlled using microprocessor corsspoint switch matrix, increases what equipment used
Convenience and flexibility.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram for the multi channel signals switching equipment that one embodiment of the invention provides；
Fig. 2 is the hardware control circuit block diagram for the multi channel signals switching equipment that one embodiment of the invention provides；
Fig. 3 is the flow diagram for the multi channel signals switching method that one embodiment of the invention provides；
Fig. 4 is another flow diagram for the multi channel signals switching method that one embodiment of the invention provides；
Fig. 5 is the another flow diagram for the multi channel signals switching method that one embodiment of the invention provides；
Fig. 6 is in the multi channel signals switching method that one embodiment of the invention provides, and the process for using of user terminal is illustrated
Figure.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
With reference to Fig. 1, Fig. 1 is the structural schematic diagram for the multi channel signals switching equipment that one embodiment of the invention provides, and is mentioned
The equipment of confession includes: input interface 11, power management module 14, corsspoint switch matrix 13, microprocessor 15 and output interface 12.
The input interface 11 and output interface 12 are connected with the corsspoint switch matrix 13 respectively；The microprocessor 15
It is connected with the corsspoint switch matrix 13, for receiving user instructions and controlling the crossbar switch square according to the user instruction
Battle array 13；The power management module 13 is used to power to equipment；Wherein, the corsspoint switch matrix 13 is specially to support wide input
The corsspoint switch matrix chip of voltage.
Specifically, the present embodiment mainly provides a kind of multi channel signals switching equipment, wherein equipment includes hardware controls electricity
Road, bsp driver, it is system function reality that wherein hardware control circuit, which carries power supply, control and the communication core of equipment,
Existing hardware foundation；Bsp driver is arranged in the microprocessor, according to the principle of work and power of each hardware module, constructs entire
The workflow frame of equipment.Wherein, hardware control circuit includes input interface, output interface and corsspoint switch matrix,
In, corsspoint switch matrix is the corsspoint switch matrix chip for supporting wide input voltage, can be compatible with TTL, CMOS and industry is existing
The multiple analogs such as field bus and digital signal type.The control sequential sent simultaneously according to microprocessor, corsspoint switch matrix energy
It is enough to record in real time and the switch state between each input interface, output interface is set.Bsp driver is mainly used for controlling micro- place
Device is managed to complete and the data exchange and workflow switching between each hardware module.Power management module is mainly used for intersecting
Switch matrix and microprocessor power supply.
Embedded microprocessor is the control control centre of multi channel signals switching equipment, by with touch interactive module
Data exchange is carried out, on the one hand processor can be sent out equipment current state information, on the other hand can obtain under user
Instruction is arranged in each passage connection state of hair.Then, processor is sent out after user instruction to be converted to the control sequential for meeting agreement
Corsspoint switch matrix is given, to complete the switching of each passage connection state.In addition, using built-in analog-to-digital conversion (ADC) module,
Microprocessor can be realized monitoring and record to cell voltage.
Equipment provided in an embodiment of the present invention has used the corsspoint switch matrix chip of wide input voltage to connect as each channel
The core for connecing and switching reduces equipment volume, weight, power consumption and design difficulty compared to traditional equipment, expands signal branch
Type is held, while corsspoint switch matrix is controlled using microprocessor, increases the convenience and flexibility that equipment uses.
On the basis of the above embodiments, described that power management module is specifically included: voltage conditioning chip, chargeable lithium
Battery and Switching Power Supply submodule；The Switching Power Supply submodule, for external 220V alternating current to be converted to direct current simultaneously
It powers to equipment；The voltage conditioning chip, the DC voltage for converting the Switching Power Supply submodule are modulated to described
Corsspoint switch matrix and the microprocessor required voltage.
The power management module further include: rechargeable lithium battery is used for when no external 220V alternating current, to equipment
Power supply, correspondingly, the voltage conditioning chip is also used to according to the DC voltage be rechargeable lithium battery charging.
Specifically, being responsible for will be external defeated as shown in Fig. 2, power management module uses Switching Power Supply and voltage conditioning chip
Enter AC power source or built-in lithium battery voltage is improved to voltage needed for other modules.In power management module, power management mould
Externally input 220V alternating current is converted into direct current by Switching Power Supply first as whole equipment power supply by block, then uses voltage tune
Reason chip improves DC power supply or built-in rechargeable lithium battery voltage to multiple voltage needed for other modules.Voltage simultaneously
Conditioning chip has been internally integrated dynamic power supplies path management and battery charging function, it can be according to battery or direct current power source voltage
Size dynamic select supply access and charge and discharge scheme.
By this device, cooperates built-in rechargeable lithium battery, further improve the versatility and portability of equipment.
On the basis of the above embodiments, the equipment further include: interactive module, for showing current device state, and
Receive the control information that user sends.
Specifically, being additionally provided with interactive module of the touch liquid crystal display as equipment in equipment, touch liquid crystal display is used for
Show current device state, and the setting information that can be inputted to user is acquired and issues, embedded microprocessor is entire
The control centre of equipment, it can be obtained the setting that user issues by touch liquid crystal display and instructed, and instruction is converted to symbol
Corsspoint switch matrix is sent to after closing the control sequential of agreement.
On the basis of the above embodiments, the equipment further include: wireless communication module, for being connected with user terminal,
It receives the user instruction that the user terminal is sent and the control instruction is sent to the embedded microprocessor.The nothing
Line communication module is also used to receive the device status information that the microprocessor is sent, and the device status information is sent to
User terminal.
Specifically, wireless communication module is connect by special frequency channel with user terminal, it is that this equipment and mobile terminal carry out journey
The bridge of interaction is controlled, the signal that the data that microprocessor uploads are modulated to meet home control network communication protocol both can be sent to shifting by it
Moved end, after the mobile terminal wireless signal received can also being demodulated to digital signal, it is corresponding to execute to be handed down to microprocessor
Instruction.Corresponding application software is installed on the subscriber terminal, in order to realize mobile terminal to multi channel signals switching equipment
It remotely controls and develops, connected by wireless telecommunications, application software can either obtain device name, device numbering, battery capacity
With the information such as current each passage connection state, user can also be supported to carry out setting in real time and more to the connection status of remote equipment
Change.Meanwhile user can also save the preset instructions of one or more groups of equipment connection status according to use demand, and use in equipment
When call at any time.
By this equipment, by introducing the components such as embedded microprocessor, touch liquid crystal display and wireless communication module,
So that the connection status between equipment input, output channel both can locally use touch screen or remotely use mobile terminal
Program-controlled setting is carried out, convenience and flexibility that equipment uses are increased.
With reference to Fig. 3, Fig. 3 is the flow diagram for the multi channel signals switching method that one embodiment of the invention provides, and is mentioned
The method of confession includes:
S301, microprocessor receive user instructions, and determine that the user refers to according to the input terminal slogan of the user instruction
The source of order, and then determine the effect position information in the user instruction.
S302 resolves to the user instruction according to coding protocol if judgement knows that effect position information is correct
The setting information of the passage connection state of corsspoint switch matrix.
S303 controls the corsspoint switch matrix according to the setting information.
Specifically, as shown in figure 4, when having measured user instruction and issuing, program can wake up microprocessor from standby first
Mode enters operating mode, and judges present instruction source according to the port numbers communicated.Then the school in computations section
It is whether correct with decision instruction reception to test position, if having correctly received instruction, parsing forming apparatus will be instructed each according to coding protocol
The setting information of passage connection state, then issued after setting information to be converted to the control sequential of corsspoint switch matrix, while to
Command source replys " being arranged successfully " information.Finally after the completion of instruction execution, microprocessor can exit interrupt service routine into
Enter standby mode, waits the triggering of next command reception event.
During verifying effect position, if judgement, which is known, is not properly received instruction, " setting is replied to command source
Failure " information.
On the basis of the above embodiments, the step of before the microprocessor receives user instructions, further includes: initialization
Corsspoint switch matrix and microprocessor, so that all switches of the corsspoint switch matrix are all in off-state, while described
Microprocessor enters standby mode.
Specifically, Fig. 5 is the another process for the multi channel signals switching method that one embodiment of the invention provides with reference to Fig. 5
Schematic diagram, equipment have system initialization movement when opening,
System initialization and bootstrap after multi channel signals switching equipment powers on, first to embedded microprocessor into
The selection of row system clock, chip pin distribution, communication interface and the configuration of ADC peripheral functionality.Then corsspoint switch matrix is carried out
Initialization makes all switches in chip be in off-state, is avoided that so not true because powering on rear each passage connection state
The phenomenon that determining, other equipment caused to be damaged.Then by being carried out with external modules such as touch liquid crystal display and wireless communication modules
Whether carrying out shake communication is normal to verify each component connection.If connection failure, controls the flashing of equipment fault lamp and user is mentioned
Show；Parameter configuration is carried out to each component to complete equipment initialization according to default setting if successful connection.Finally, opening micro- place
After managing device communicating interrupt and the PORT COM of enabled touch liquid crystal display and wireless communication module, into low-power consumption standby mode,
Wait the wake-up of external interrupt.When touch liquid crystal display or wireless communication module have detected that user instruction issues, can generate
Interrupt signal triggers microprocessor entry instruction and receives service routine.
On the basis of the above embodiments, it when being controlled using user terminal, is answered as shown in fig. 6, opening mobile terminal
After software, program can actively obtain wireless communication module adapter, and whether detection mobile terminal opens wireless communication function module,
If module is not opened, mobile terminal wireless communication function set interface is jumped to, user is waited to open the module.It is moved opening
After holding wireless communication function, program has entered instruction set interface.Under the interface, program can actively obtain multi channel signals
The relevant information of switching equipment, such as device type, device numbering, battery capacity and current each passage connection state information, and
It is displayed on the screen and is consulted for user.Simultaneously under the interface, it can constantly detect whether that command key is pressed from the background, not have such as
Have, continues waiting for；If there is key to be triggered, program can execute the corresponding order of key, and such as channel resetting, connects channel setting
Connect state it is default/save etc..Then whether sense command is successfully executed, and such as runs succeeded, program can push " order execute at
The information of function "；Failure is such as executed, then can push the information of " order executes failure ".Finally after the completion of the current command executes, journey
Sequence meeting return instruction set interface, waits new key commands to trigger.
The apparatus embodiments described above are merely exemplary, wherein described, unit can as illustrated by the separation member
It is physically separated with being or may not be, component shown as a unit may or may not be physics list
Member, it can it is in one place, or may be distributed over multiple network units.It can be selected according to the actual needs
In some or all of the modules achieve the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creativeness
Labour in the case where, it can understand and implement.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
It realizes by means of software and necessary general hardware platform, naturally it is also possible to pass through hardware.Based on this understanding, on
Stating technical solution, substantially the part that contributes to existing technology can be embodied in the form of software products in other words, should
Computer software product may be stored in a computer readable storage medium, such as ROM/RAM, magnetic disk, CD, including several fingers
It enables and using so that a computer equipment (can be personal computer, server or the network equipment etc.) executes each implementation
Method described in certain parts of example or embodiment.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features；
And these are modified or replaceed, technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of multi channel signals switching equipment characterized by comprising input interface, power management module, crossbar switch square
Battle array, microprocessor and output interface；
The input interface and output interface are connected with the corsspoint switch matrix respectively；
The microprocessor is connected with the corsspoint switch matrix, for receiving user instructions and being controlled according to the user instruction
The corsspoint switch matrix；
The power management module is used to power to equipment；
Wherein, the corsspoint switch matrix is specially the corsspoint switch matrix chip for supporting wide input voltage.
2. equipment according to claim 1, which is characterized in that described to be specifically included to power management module: voltage conditioning
Chip, rechargeable lithium battery and Switching Power Supply submodule；
The Switching Power Supply submodule, for external 220V alternating current to be converted to direct current and is powered to equipment；
The voltage conditioning chip, the DC voltage for converting the Switching Power Supply submodule are modulated to the crossbar switch
Matrix and the microprocessor required voltage.
3. equipment according to claim 2, which is characterized in that the power management module further include: rechargeable lithium battery,
For being powered to equipment when no external 220V alternating current, correspondingly, the voltage conditioning chip is also used to according to described straight
Galvanic electricity pressure is that the rechargeable lithium battery charges.
4. equipment according to claim 1, which is characterized in that the equipment further include: interactive module, it is current for showing
Equipment state, and receive the control information of user's transmission.
5. equipment according to claim 1, which is characterized in that the equipment further include: wireless communication module, for with
Family terminal is connected, and receives the user instruction that the user terminal is sent and the control instruction is sent to the insertion and decline place
Manage device.
6. equipment according to claim 5, which is characterized in that the wireless communication module is also used to receive the micro process
The device status information that device is sent, and the device status information is sent to user terminal.
7. a kind of multi channel signals switching method based on any provided multi channel signals switching equipment of claim 1-6,
It is characterised by comprising:
Microprocessor receives user instructions, and the source of the user instruction is determined according to the input terminal slogan of the user instruction,
And then determine the effect position information in the user instruction；
If judgement knows that effect position information is correct, the user instruction is resolved to by crossbar switch square according to coding protocol
The setting information of the passage connection state of battle array；
The corsspoint switch matrix is controlled according to the setting information.
8. the method according to the description of claim 7 is characterized in that the effect position letter in the described and then judgement user instruction
After the step of breath further include:
If effect position information errors are known in judgement, replied to the source of the user instruction, setup failed information.
9. the method according to the description of claim 7 is characterized in that the microprocessor receive user instructions before the step of,
Further include:
Corsspoint switch matrix and microprocessor are initialized, so that all switches of the corsspoint switch matrix are all in disconnection shape
State, while the microprocessor enters standby mode.
10. the method according to the description of claim 7 is characterized in that it is described according to the setting information to the crossbar switch
After the step of matrix is controlled, further includes:
Setting successful information is replied to the source of the user instruction.
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| CN110376947B (en) * | 2019-07-26 | 2021-06-22 | 浙江中控技术股份有限公司 | Multichannel signal switching circuit |
| CN111352041A (en) * | 2020-02-29 | 2020-06-30 | 苏州浪潮智能科技有限公司 | Power supply time sequence measuring method and device |
| CN113365189A (en) * | 2021-06-04 | 2021-09-07 | 上海傅硅电子科技有限公司 | Multi-channel seamless switching method |
| CN113365189B (en) * | 2021-06-04 | 2022-08-05 | 上海傅硅电子科技有限公司 | Multi-channel seamless switching method |
| CN114598668A (en) * | 2022-02-25 | 2022-06-07 | 中国航空工业集团公司西安航空计算技术研究所 | System for time-triggered data exchange |
| CN114598668B (en) * | 2022-02-25 | 2024-01-23 | 中国航空工业集团公司西安航空计算技术研究所 | System for time-triggered data exchange |
| CN117311247A (en) * | 2023-11-30 | 2023-12-29 | 山东兴盛矿业有限责任公司 | Control device for underground mining |
| CN117311247B (en) * | 2023-11-30 | 2024-03-26 | 山东盛泰矿业科技有限公司 | Control device for underground mining |
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Application publication date: 20190405 |