CN209627394U - A kind of digital signal acquiring device and system - Google Patents
A kind of digital signal acquiring device and system Download PDFInfo
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- CN209627394U CN209627394U CN201920970306.8U CN201920970306U CN209627394U CN 209627394 U CN209627394 U CN 209627394U CN 201920970306 U CN201920970306 U CN 201920970306U CN 209627394 U CN209627394 U CN 209627394U
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Abstract
The utility model discloses a kind of digital signal acquiring device and systems, the digital level or impulse circuit of telecommunication circuit and at least 2 road acquisition channels at least three kinds of agreements, realize the bus redundancy transmission of two or more agreement, and the acquisition of the digital signal in multiple channels improves message transmission rate, reliability.Digital signal acquiring device includes: signal processor circuit, the telecommunication circuit of at least three kinds of agreements and digital level or impulse circuit, and digital level or impulse circuit include at least 2 road acquisition channels；Signal processor circuit is connect with the telecommunication circuit of at least three kinds of agreements and digital level or impulse circuit.
Description
Technical field
The present invention relates to signal control fields, more particularly to a kind of digital signal acquiring device and system.
Background technique
It in function complexity, and runs, under the situation more than Working mechanism, value volume and range of product, such as railway engineering is mechanical
Vehicle needs a set of powerful, high reliablity control system, to control the operation and operation of railway engineering machinery.Control
System need to acquire each measurement sensor, signal feeding potentiometer output digital signal as control system feedback signal and
Setting signal.Since each measurement sensor, signal feeding potentiometer are dispersions, cause connecting cable long and more, letter
Number loss is big, is easy to be disturbed, and causes homework precision unstable.
Local area network (Controller Area Network, CAN) can also be passed through by the signal after acquiring at present
The buses such as bus or RS232 are sent to control system.But this bus transfer speed is lower, and is all individually with certain bus
Transmission is not carried out the transmission of two or more bus redundancy, therefore, it is difficult to meet under high-end, complicated scene, to the number of control system
According to the requirement of transmission speed, reliability.
Summary of the invention
The object of the present invention is to provide a kind of digital signal acquiring device and system, the telecommunication circuit at least three kinds of agreements
And the digital level or impulse circuit of at least 2 road acquisition channels, the bus redundancy transmission of two or more agreement is realized, and more
The acquisition of the digital signal in a channel improves message transmission rate, reliability
First aspect present invention provides digital signal acquiring device, comprising:
Signal processor circuit, the telecommunication circuit of at least three kinds of agreements and digital level or impulse circuit, the digital level
Or impulse circuit includes at least 2 road acquisition channels；
The telecommunication circuit and the digital level or impulse circuit of the signal processor circuit and at least three kinds of agreements
Connection.
Further, the telecommunication circuit of at least three kinds of agreements include CAN bus telecommunication circuit, EtherCAT telecommunication circuit and
RS-232 telecommunication circuit.
Further, CAN bus telecommunication circuit includes 2 tunnels, and EtherCAT telecommunication circuit includes 2 tunnels, RS-232 communication electricity
Road includes 1 tunnel.
Further, digital signal acquiring device further include:
2 CAN communication interfaces, 2 EtherCAT communication interfaces and 1 RS-232 communication interface；
2 CAN communication interfaces are connect with 2 tunnel CAN bus telecommunication circuits respectively；
2 EtherCAT communication interfaces are connect with 2 road EtherCAT telecommunication circuits respectively；
RS-232 communication interface is connect with RS-232 telecommunication circuit.
Further, digital signal acquiring device further include:
At least two digital signal input interface, each digital signal input interface are connect with 1 road acquisition channel respectively.
Further, digital level or impulse circuit further include:
Sub-circuit, reference voltage output sub-circuit and rate-adaptive pacemaker sub-circuit is isolated in optical coupling；
Optical coupling isolation sub-circuit is set to each digital signal input interface and per between acquisition channel all the way；
Reference voltage exports sub-circuit to provide per acquisition channel all the way more than or equal to 0 volt and less than or equal to 36 volts
Reference voltage；
Rate-adaptive pacemaker sub-circuit provides the base for more than or equal to 0 hertz and being less than or equal to 10 kHz for every acquisition channel all the way
Quasi- frequency.
Further, digital signal acquiring device further include:
Power circuit and power interface；
Power interface is connect with power circuit.
Second aspect of the present invention provides a kind of digital signal acquiring system, comprising:
The communication network of at least three kinds of agreements, digital signal input digital signal acquiring device in network and claim 1-7,
Digital signal acquiring device is at least one；
Digital signal acquiring device includes signal processor circuit, the telecommunication circuit of at least three kinds of agreements and digital level or arteries and veins
Circuit is rushed, digital level or impulse circuit include at least 2 road acquisition channels, and signal processor circuit is logical at least three kinds of agreements
Believe circuit and digital level or impulse circuit connection；
The telecommunication circuit of each agreement is connected with the communication network of corresponding agreement；
Digital level or impulse circuit are connected to the network by least 2 road acquisition channels and digital signal input.
Further,
The communication network of at least three kinds of agreements includes CAN bus communication network, EtherCAT communication network and RS-232 communication
Network；
The telecommunication circuit of at least three kinds of agreements includes CAN bus telecommunication circuit, EtherCAT telecommunication circuit and RS-232 communication
Circuit；
More than two digital signal acquiring devices access CAN bus communication network by the parallel connection of CAN bus telecommunication circuit, pass through
The series connection of EtherCAT telecommunication circuit, which accesses EtherCAT communication network and accesses RS-232 by the parallel connection of RS-232 telecommunication circuit, leads to
Communication network.
Therefore with it is existing individually transmit data by the buses such as CAN bus or RS232 bus compared with, realize 2
Kind or more agreement bus redundancy transmission, break down in the telecommunication circuit of wherein some agreement or communication network connected to it
When, the normal transmission for guaranteeing data by the telecommunication circuit of other agreements is remained to, realizes network communication redundancy, and multiple channels
Digital signal acquisition, improve message transmission rate, reliability improves message transmission rate, reliability.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of one embodiment of digital signal acquiring device provided by the invention；
Fig. 2 is the structural schematic diagram of another embodiment of digital signal acquiring device provided by the invention；
Fig. 3 is the structural schematic diagram of the further embodiment of digital signal acquiring device provided by the invention；
Fig. 4 is the structural schematic diagram of one embodiment of digital signal acquiring system provided by the invention.
Specific embodiment
Core of the invention is to provide a kind of digital signal acquiring device and system, the telecommunication circuit at least three kinds of agreements
And the digital level or impulse circuit of at least 2 road acquisition channels, the bus redundancy transmission of two or more agreement is realized, and more
The acquisition of the digital signal in a channel improves message transmission rate, reliability.
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 making creative work, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the embodiment of the present invention provides a kind of digital signal acquiring device, comprising:
Signal processor circuit 101, the telecommunication circuit 102 of at least three kinds of agreements and digital level or impulse circuit 103, number
Word level or impulse circuit 103 include at least 2 road acquisition channels 104；
The telecommunication circuit 102 and digital level or impulse circuit 103 of signal processor circuit 101 and at least three kinds of agreements connect
It connects.
In the embodiment of the present invention, signal processor circuit 101, the telecommunication circuit 102 of at least three kinds of agreements and digital level or
Impulse circuit 103, digital level or impulse circuit 103 include at least 2 road acquisition channels 104.It should be noted that in Fig. 1
Telecommunication circuit 1, telecommunication circuit 2, telecommunication circuit 3 ..., telecommunication circuit N show telecommunication circuit be have 3 kinds or 3 kinds or more
Agreement, the telecommunication circuit of same agreement can be one or more, and specific quantity is without limitation.It is acquired in Fig. 1
Channel 1, acquisition channel 2 ..., acquisition channel N show that the acquisition channel of digital level or impulse circuit 103 has 2 tunnels or 2
More than road, specific quantity is without limitation.Wherein, the telecommunication circuit 102 of signal processor circuit 101 and at least three kinds of agreements and
Digital level or impulse circuit 103 connect.Since in existing mode, digital signal acquiring device is merely able to by individually a kind of
The bus transfer of communication protocol transmits data, then not can guarantee the normal transmission of data when communication network breaks down, and
In the embodiment of the present invention, realize two or more agreement bus redundancy transmission, wherein some agreement telecommunication circuit or and its
When the communication network of connection breaks down, the normal transmission for guaranteeing data by the telecommunication circuit of other agreements is remained to, realizes net
Network communication redundancy, and the acquisition of the digital signal in multiple channels, this improves message transmission rates, reliability.
Optionally, embodiment as shown in connection with fig. 1, is specifically described telecommunication circuit, referring to Fig. 2, of the invention
Embodiment provides a kind of digital signal acquiring device, comprising:
The telecommunication circuit of at least three kinds of agreements includes CAN bus telecommunication circuit 201, EtherCAT telecommunication circuit 202 and RS-
232 telecommunication circuits 203；
CAN bus telecommunication circuit 201 includes 2 tunnels, and EtherCAT telecommunication circuit 202 includes 2 tunnels, RS-232 telecommunication circuit
203 include 1 tunnel；
2 CAN communication interfaces, 204,2 EtherCAT communication interfaces 205 and 1 RS-232 communication interface 206；
2 CAN communication interfaces 204 are connect with 2 tunnel CAN bus telecommunication circuits 201 respectively；
2 EtherCAT communication interfaces 202 are connect with 2 road EtherCAT telecommunication circuits 205 respectively；
RS-232 communication interface 206 is connect with RS-232 telecommunication circuit 206；
At least two digital signal input interface 207, each digital signal input interface 207 respectively with 1 road acquisition channel
104 connections.
In the embodiment of the present invention, the communication network according to existing agreement mainly includes CAN, EtherCAT and RS-232；
Wherein, CAN belongs to bus type serial communication network, due to using many new technologies and unique design philosophy,
Compared with similar products, CAN bus has the advantages that reliable, real-time and flexible in terms of data communication, for make to design it is transparent and
It executes flexible, it then follows ISO/OSI master pattern, CAN bus structure include logic link control (Logical Link
Control, LLC) sublayer and media access control (Media Access Control, MAC) sublayer, LLC sublayer is that data pass
Pass with teledata request offer service, the function control frame structure of media access control sublayer, executes arbitration, error checking, malfunction demarcate and
Failure defining, therefore, CAN bus telecommunication circuit 201 include 2 tunnels；
EtherCAT (Ethernet auto-control technology) is an open architecture, the fieldbus based on Ethernet
System, EtherCAT use the Ethernet physical layer of full duplex, and therefore, EtherCAT telecommunication circuit 202 has 2 tunnels；
RS-232 is prepared different by Electronic Industries Association (Electronic Industries Association, EIA)
Transmission standard interface is walked, 1 road RS-232 telecommunication circuit 203 is passed through；
For 2 tunnel CAN bus telecommunication circuit, 201,2 road EtherCAT telecommunication circuit, 202,1 road RS-232 telecommunication circuit
203, need to be arranged corresponding interface, to realize that data are transmitted, therefore, digital signal acquiring device further includes that 2 CAN communications connect
204,2 EtherCAT communication interfaces 205 of mouth and 1 RS-232 communication interface 206；Wherein, 2 CAN communication interfaces 204 are distinguished
It is connect with 2 tunnel CAN bus telecommunication circuits 201；2 EtherCAT communication interfaces 202 respectively with 2 road EtherCAT telecommunication circuits
205 connections；RS-232 communication interface 206 is connect with RS-232 telecommunication circuit 206；
At least two digital signal input interface 207, each digital signal input interface 207 respectively with 1 road acquisition channel
104 connections, as shown in Figure 2, a digital signal input interface 207 need a corresponding acquisition channel 104, in order that allowing one
A acquisition channel 104 can individually export a digital signal, to avoid interfering with each other between digital signal.It needs to illustrate
, in specific implementation, acquisition channel 104 and digital signal input interface 207 are traditionally arranged to be 16, in addition to this, adopt
Collection channel 104 and digital signal input interface 207 may be arranged as other quantity, specifically without limitation.
Optionally, the embodiment in conjunction with shown in figure 2 above, digital level or impulse circuit further include:
Sub-circuit, reference voltage output sub-circuit and rate-adaptive pacemaker sub-circuit is isolated in optical coupling；
Optical coupling isolation sub-circuit is set to each digital signal input interface and per between acquisition channel all the way；
Reference voltage exports sub-circuit to provide per acquisition channel all the way more than or equal to 0 volt and less than or equal to 36 volts
Reference voltage；
Rate-adaptive pacemaker sub-circuit provides the base for more than or equal to 0 hertz and being less than or equal to 10 kHz for every acquisition channel all the way
Quasi- frequency.
In the embodiment of the present invention, optical coupling isolation sub-circuit is set to each digital signal input interface and often adopts all the way
Collect between channel；Reference voltage exports sub-circuit as the base of 36V is provided more than or equal to 0V and be less than or equal to per acquisition channel all the way
Quasi- voltage；Rate-adaptive pacemaker sub-circuit provides the reference frequency for more than or equal to 0 and being less than or equal to 10KHz for every acquisition channel all the way.
Acquisition channel can collect the digital signal of voltage range 0V -+36V, frequency range 0-10KHz.It should be noted that with
On numerical value be not it is unique, in the specific implementation, other values can also be set as.
Optionally, embodiment as shown in connection with fig. 2, as shown in figure 3, digital signal acquiring device further include:
Power circuit 301 and power interface 302；
Power interface 302 is connect with power circuit 301.
In the embodiment of the present invention, power circuit 301 is specifically DC/DC (DC/DC) formula power circuit, is digital signal
Circuit in collector is powered.
Referring to Fig. 4, the embodiment of the present invention provides a kind of digital signal acquiring system, comprising:
Number of the communication network, digital signal input network and Fig. 1 of at least three kinds of agreements into embodiment shown in Fig. 3
Signal picker, digital signal acquiring device are at least one；
Digital signal acquiring device includes signal processor circuit, the telecommunication circuit of at least three kinds of agreements and digital level or arteries and veins
Circuit is rushed, digital level or impulse circuit include at least 2 road acquisition channels, and signal processor circuit is logical at least three kinds of agreements
Believe circuit and digital level or impulse circuit connection；
The telecommunication circuit of each agreement is connected with the communication network of corresponding agreement；
Digital level or impulse circuit are connected to the network by least 2 road acquisition channels and digital signal input.
In the embodiment of the present invention, the communication network of at least three kinds of agreements includes CAN bus communication network, EtherCAT communication
Network and RS-232 communication network, the telecommunication circuit of at least three kinds of agreements include CAN bus telecommunication circuit, EtherCAT communication electricity
Road and RS-232 telecommunication circuit, more than two digital signal acquiring devices access CAN bus by the parallel connection of CAN bus telecommunication circuit and lead to
Communication network passes through EtherCAT telecommunication circuit series connection access EtherCAT communication network and passes through the parallel connection of RS-232 telecommunication circuit
Access RS-232 communication network.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
It should also be noted that, the terms "include", "comprise" or its any other variant are intended to nonexcludability
It include so that the process, method, article or equipment for including a series of elements not only includes those elements, but also to wrap
Include other elements that are not explicitly listed, or further include for this process, method, article or equipment intrinsic want
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of digital signal acquiring device characterized by comprising
Signal processor circuit, the telecommunication circuit of at least three kinds of agreements and digital level or impulse circuit, the digital level or arteries and veins
Rushing circuit includes at least 2 road acquisition channels；
The telecommunication circuit and the digital level or impulse circuit of the signal processor circuit and at least three kinds of agreements connect
It connects.
2. digital signal acquiring device according to claim 1, which is characterized in that
The telecommunication circuit of at least three kinds of agreements includes CAN bus telecommunication circuit, EtherCAT telecommunication circuit and RS-232 communication
Circuit.
3. digital signal acquiring device according to claim 2, which is characterized in that
The CAN bus telecommunication circuit includes 2 tunnels, and the EtherCAT telecommunication circuit includes 2 tunnels, the RS-232 telecommunication circuit
Including 1 tunnel.
4. digital signal acquiring device according to claim 3, which is characterized in that the digital signal acquiring device further include:
2 CAN communication interfaces, 2 EtherCAT communication interfaces and 1 RS-232 communication interface；
2 CAN communication interfaces are connect with CAN bus telecommunication circuit described in 2 tunnels respectively；
2 EtherCAT communication interfaces are connect with EtherCAT telecommunication circuit described in 2 tunnels respectively；
The RS-232 communication interface is connect with the RS-232 telecommunication circuit.
5. digital signal acquiring device according to claim 1, which is characterized in that the digital signal acquiring device further include:
At least two digital signal input interface, each digital signal input interface are connect with 1 road acquisition channel respectively.
6. digital signal acquiring device according to claim 5, which is characterized in that the digital level or impulse circuit also wrap
It includes:
Sub-circuit, reference voltage output sub-circuit and rate-adaptive pacemaker sub-circuit is isolated in optical coupling；
The optical coupling isolation sub-circuit is set to each digital signal input interface and per between acquisition channel all the way；
The reference voltage output sub-circuit provides for every acquisition channel all the way more than or equal to 0 volt and less than or equal to 36 volts
Reference voltage；
The rate-adaptive pacemaker sub-circuit provides the base for more than or equal to 0 hertz and being less than or equal to 10 kHz for every acquisition channel all the way
Quasi- frequency.
7. digital signal acquiring device according to claim 1 to 6, which is characterized in that the digital signal acquiring
Device further include:
Power circuit and power interface；
The power interface is connect with the power circuit.
8. a kind of digital signal acquiring system characterized by comprising
The communication network of at least three kinds of agreements, digital signal input digital signal acquiring device described in network and claim 1-7,
The digital signal acquiring device is at least one；
The digital signal acquiring device includes signal processor circuit, the telecommunication circuit of at least three kinds of agreements and digital level or arteries and veins
Rush circuit, the digital level or impulse circuit include at least 2 road acquisition channels, the signal processor circuit and it is described at least
The telecommunication circuit of 3 kinds of agreements and the connection of the digital level or impulse circuit；
The telecommunication circuit of each agreement is connected with the communication network of corresponding agreement；
The digital level or impulse circuit pass through at least 2 road acquisition channels and digital signal input is connected to the network.
9. digital signal acquiring system according to claim 8, which is characterized in that
The communication network of at least three kinds of agreements includes CAN bus communication network, EtherCAT communication network and RS-232 communication
Network；
The telecommunication circuit of at least three kinds of agreements includes CAN bus telecommunication circuit, EtherCAT telecommunication circuit and RS-232 communication
Circuit；
More than two digital signal acquiring devices access the CAN bus by the CAN bus telecommunication circuit parallel connection and communicate
Network accesses the EtherCAT communication network by EtherCAT telecommunication circuit series connection and communicates electricity by RS-232
Road parallel connection accesses the RS-232 communication network.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110191039A (en) * | 2019-06-25 | 2019-08-30 | 长沙瀚鹏电子技术有限公司 | A kind of digital signal acquiring device, method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110191039A (en) * | 2019-06-25 | 2019-08-30 | 长沙瀚鹏电子技术有限公司 | A kind of digital signal acquiring device, method and system |
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