CN108039042A - A kind of digital and analogue signals transmission system and transfer approach - Google Patents
A kind of digital and analogue signals transmission system and transfer approach Download PDFInfo
- Publication number
- CN108039042A CN108039042A CN201711418862.6A CN201711418862A CN108039042A CN 108039042 A CN108039042 A CN 108039042A CN 201711418862 A CN201711418862 A CN 201711418862A CN 108039042 A CN108039042 A CN 108039042A
- Authority
- CN
- China
- Prior art keywords
- signal
- module
- analog
- digital
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 50
- 238000013459 approach Methods 0.000 title claims abstract description 13
- 238000012546 transfer Methods 0.000 title claims abstract description 13
- 238000006243 chemical reaction Methods 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 230000000875 corresponding effect Effects 0.000 description 5
- 238000010619 multiway switching Methods 0.000 description 4
- 230000035807 sensation Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000006854 communication Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002716 delivery method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/46—Monitoring; Testing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a kind of digital and analogue signals transmission system and transfer approach, which includes sending module and receiving module；Sending module includes data acquisition card and D/A converter module, and the input terminal of data acquisition card is connected with some On-off signal lines, the input terminal of the output terminal connection D/A converter module of data acquisition card；Receiving module includes analog-to-digital conversion module and signal output card, the input terminal of the output terminal connection signal output card of analog-to-digital conversion module；The output terminal of signal output card is connected with some output switch parameter lines；Connected between the output terminal of D/A converter module and the input terminal of analog-to-digital conversion module by conducting wire.It is an advantage of the invention that：The digital signal of more on-off model lines is grouped coding, and is transmitted using two-wire system signal wire, can effectively reduce the number of circuit；This transmission mode have the advantages that signal conveying capacity big, signal stabilization, cost it is low, easy to breakdown judge and system maintenance.
Description
Technical field
The invention belongs to industry control technical field, and in particular to a kind of digital and analogue signals transmission system and transfer approach.
Background technology
The many sensors of installation are usually required on the large industry equipments such as garbage grab bucket, bulk goods grab bucket and perform member
Part；These elements and sensor need to interact by signal wire and CPU or industrial control equipment；In the prior art, each sensing
Device and executive component need independent signal wire to be attached with CPU or industrial control equipment；But the working environment of industrial equipment
Usually relatively severe, not only various heavy current installations can cause electromagnetic interference, various corrosive gas can also to electronic equipment and
Signal wire causes to corrode；Cause the communication process of various sensors and executive component and industrial control equipment that various accidental events occur
Barrier；Huge number and the signal wire of laying complexity can greatly increase the probability of happening and maintenance difficulty of chance failure.
The content of the invention
According to the deficiencies of the prior art described above, It is an object of the present invention to provide a kind of digital and analogue signals transmission system and biography
Delivery method, the system are transmitted by two-wire system signal wire by the way that multi-way switching values Signal coding is formed analog signal, solved
Maintenance issues caused by line number signal is huge.
The object of the invention is realized and completed by following technical scheme：
A kind of digital and analogue signals transmission system, it is characterised in that the digital and analogue signals transmission system includes sending module and receives mould
Group；The transmission module includes data acquisition card and D/A converter module, if the input terminal of the data acquisition card is connected with
Dry On-off signal line, the output terminal of the data acquisition card connect the input terminal of the D/A converter module；The reception mould
Group includes analog-to-digital conversion module and signal output card, and the output terminal of the analog-to-digital conversion module connects the signal output card
Input terminal；The output terminal of the signal output card is connected with some output switch parameter lines；The output terminal of the D/A converter module
It is connected between the input terminal of the analog-to-digital conversion module by conducting wire.
The D/A converter module is numeral-current conversion module；The analog-to-digital conversion module is electric current-numeral modulus of conversion
Block；The conducting wire connected between the D/A converter module and the analog-to-digital conversion module includes a ground wire and a signal
Line.
The number of the On-off signal line is identical with the number of the output switch parameter line.
The transmission module further includes the first clock module, and the output terminal of first clock module connects the signal and adopts
Truck；The receiving module further includes second clock module, and the output terminal of the second clock module connects the signal output
Card；First clock module is run with the second clock module synchronization.
The output terminal of the D/A converter module is connected with disconnection detection device, and the disconnection detection device is used to detect institute
State the electric current and voltage of the output terminal of D/A converter module.
A kind of transfer approach for being related to any digital and analogue signals transmission system, it is characterised in that the transfer approach includes
Following steps：
In transmission process, send module and the input signal of On-off signal line is divided into some data signal groups I, the hair
Send module that each data signal groups I are converted into analog signal frame successively, and the analog signal frame is sent to reception mould
Group；After each analog signal frame is sent completely, the transmission module persistently sends idle signal to the receiving module；
In receive process, the receiving module receives the analog signal frame successively, and is converted into data signal groups II；
After receiving the idle signal, each data signal groups II are converted to switching value output signal by the receiving module, and
Each switching value output signal is exported from corresponding output switch parameter line.
The data signal groups I and the data signal groups II are bigit, the data signal groups I and
The bit wide of the data signal groups II is equal；The data acquisition card for sending module is used for the defeated of the On-off signal line
Enter signal and be divided into some data signal groups I；The signal output card of the receiving module is used for the data signal groups
II splicing and recovery into switching value output signal, and by each switching value output signal from the corresponding output switch parameter line into
Row output.
The analog signal frame is analog current signal, and the duration of each analog signal frame is identical；The transmission
The D/A converter module of module is used to the data signal groups I being converted to analog signal frame, and the modulus of the receiving module turns
Mold changing block is used to the analog signal frame being converted to the data signal groups II；The idle signal is analog current signal,
The current value of the idle signal is more than the maximum current value of the analog signal frame.
The analog-to-digital conversion module of the receiving module persistently adopts the current signal of the transmission module output
Sample；It is described to connect when the analog-to-digital conversion module detects that the current value of current signal is less than the current value of the idle signal
The chronometric data that module is received according to second clock module receives the analog signal frame one by one；The analog signal frame it is lasting when
Between be 5 times to 1000 times of sampling period of the analog-to-digital conversion module.
When the disconnection detection device of the transmission module detects that the electric current of the output terminal of the analog-to-digital conversion module is zero
And voltage it is excessive when, the disconnection detection device sends disconnection fault alarm.
It is an advantage of the invention that：The digital signal of more on-off model lines is grouped coding, and uses two-wire system
Signal wire is transmitted, and can effectively reduce the number of circuit；This transmission mode is big with signal conveying capacity, and signal is steady
Calmly, the advantages of failure is few, and cost is low；Also had the advantages that easy to safeguarding using two-ways transmitting multi-way switching values signal, can be with
Effectively reduce the overhaul of the equipments time.
Brief description of the drawings
Fig. 1 is the structure diagram of the digital and analogue signals transmission system in the present invention；
Fig. 2 is the structure diagram of the transmission module in the present invention；
Fig. 3 is the structure diagram of the receiving module in the present invention；
Fig. 4 is the signal waveforms on the conducting wire for connected in the present invention receiving module and transmission module.
Embodiment
The feature of the present invention and other correlated characteristics are described in further detail by embodiment below in conjunction with attached drawing, with
Easy to the understanding of technical staff of the same trade：
Such as Fig. 1-4, mark 1-12 is respectively in figure：Send module 1, receiving module 2, On-off signal line 3, output switch parameter line
4th, data acquisition card 5, D/A converter module 6, the first clock module 7, disconnection detection device 8, analog-to-digital conversion module 9, signal are defeated
Card release 10, second clock module 11, conducting wire 12.
Embodiment：As shown in Figure 1, the present embodiment is specifically related to a kind of digital and analogue signals transmission system, which includes passing through
The transmission module 1 and receiving module 2 that conducting wire 12 connects；The conducting wire 12 sent between module 1 and receiving module 2 is connected to wrap
Include ground wire and signal wire；Send module 1 to be used to the switching signal of more On-off signal lines 3 being aggregated into analog signal, lead to
To cross conducting wire 12 and be transmitted to receiving module 2, analog signal is reverted to multiple switch amount signal by receiving module, and from output switch parameter
Line 4 exports.
As shown in Figure 1, 2, sending module 1 includes data acquisition card 5,6 and first clock module 7 of D/A converter module；
First clock module 7 connects the data acquisition card 5；The input terminal of data acquisition card 5 is connected with some On-off signal lines 3,
The input terminal of the output terminal connection D/A converter module 6 of data acquisition card 5；The output terminal of D/A converter module 6 passes through conducting wire 12
Connect receiving module 2；D/A converter module 6 is numeral-current conversion module, and D/A converter module 6 is used for data acquisition card 5
The digital signal of output is converted to analog current signal.
As shown in Figure 1, 2, send module 1 and further include disconnection detection device 8, disconnection detection device 8 is connected to digital-to-analogue conversion
The output terminal of module 6, for the electric current and voltage of the output terminal for detecting D/A converter module 6；Exported when D/A converter module 6
Electric current is zero and during excessive voltage, and open circuit occurs for the conducting wire 12 for representing to be connected to receiving module 2 and send between module, open circuit
Detection device 8 can send disconnection fault alarm according to this feature；By disconnection detection device 8, plant maintenance personnel can facilitate
Ground detects line fault, can be effectively saved the overhaul of the equipments time.
As shown in Figure 1,3, receiving module 2 includes analog-to-digital conversion module 9, signal output card 10 and second clock module
11；Second clock module 11 connects data acquisition card 5；The input of the output terminal connection signal output card 10 of analog-to-digital conversion module 9
End；The output terminal of signal output card 10 is connected with some output switch parameter lines 4；Analog-to-digital conversion module 9 is electric current-numeral modulus of conversion
Block, the analog current signal for transmission module 1 to be exported are converted to digital signal；In the present embodiment, On-off signal line 3
Number is identical with the number of output switch parameter line 4；First clock module 7 is run simultaneously with second clock module 11.Meanwhile first
Clock module 7 can take the mode of software clock with second clock module 11, and system drafts the numerical value of a synchronization, recipient
Time synchronizing can be carried out after receiving the numerical value.
As shown in Figure 1, the present embodiment further relates to a kind of digital and analogue signals transfer approach, in the present embodiment, send module 1 and connect
There is six roots of sensation On-off signal line 3, receiving module is connected with six roots of sensation output switch parameter line 4；In the present embodiment, digital and analogue signals sender
Method includes sending the transmission process of module 1 and the receive process of receiving module 2.
As shown in Figure 1, 2, the transmission process for sending module 1 comprises the following steps：（1）Module 1 is sent by On-off signal
The input signal of line 3 is divided into some data signal groups I；（2）Module 1 is sent to be converted into simulating by each data signal groups I successively
Signal frame, and analog signal frame is sent to receiving module 2；（3）After each analog signal frame is sent completely, module 1 is sent to connecing
Receive module 2 and persistently send idle signal；Specifically：
As shown in Fig. 1,2,4, the transmission precision of analog signal is limited, and it is defeated that single analog signal can not be transmitted across more switching values
Enter the input signal of line 3；In order to solve this problem, the data acquisition card 5 of module 1 is sent by multi-way switching values input line 3
Input signal is divided into some data signal groups I to be grouped transmission；The input signal of every On-off signal line 3 only has
On and off two states, therefore in partition process, some On-off signal lines 3 can be grouped, by every group of On-off signal
The input signal of line 3 is merged into the bigit with multiple bits, and believes the bigit after merging as numeral
Number group I；In the present embodiment, the bit wide of each data signal groups I is identical, and each data signal groups include the data of 2 to 10 bits,
That is by transmitting a data signal groups I, the input signal of 2 to 10 way switch amount input lines 3 can be transmitted；By being divided into n
Group transmission, a transmitting procedure can transmit 2n to the input signal of 10n way switch amounts input line 3, greatly extend circuit
Transmission capacity.
As shown in Fig. 1,2,4, in the present embodiment, send module 1 and be connected with six roots of sensation On-off signal line 3, data acquisition card 5
The input signal of six roots of sensation On-off signal line 3 is divided into two groups of data signal groups I, every group of data signal groups I include 3 bit numbers
According to representing the input signal of three-way switch amount input line 3 respectively.
As shown in Fig. 1,2,4, in the present embodiment, the D/A converter module 6 for sending module 1 is used for the digital signal of input
Be converted to analog current signal；The data acquisition card 5 for sending module 1 exports the number of some by continuing to D/A converter module 6
Word signal group I so that D/A converter module 6 exports signal and is maintained at some current value, to form analog signal frame；Simulation letter
Number frame can be transmitted to receiving module 2 by conducting wire 12 from module 1 is sent；It is synchronous with receiving module 2 for the ease of sending module 1,
The duration T of each analog signal frame is equal；T=100ms in the present embodiment, the maximum current value of analog signal frame are
20mA。
As shown in Fig. 1,2,4, send the data acquisition card 5 of module 1 ensures each mould under the auxiliary of the first clock module 7
The duration T for intending signal frame meets design requirement；First clock module 7 every analog signal frame duration T to signal
Capture card 5 sends trigger signal；In transmitting procedure, after trigger signal is received, data acquisition card 5 stops exporting currently
Digital signal（Data signal groups I or digital idle signal）, and start to continue to send next numeral letter to D/A converter module 6
Number group I, until whole data signal groups are transmitted；In above process, D/A converter module 6 is sequentially output the duration
For the analog signal frame of T.
As shown in Fig. 1,2,4, after each analog signal frame and corresponding data signal groups I are transmitted, signal is adopted
Truck 5 continues to send digital idle signal to D/A converter module 6, and digital idle signal is converted to sky by D/A converter module 6
Not busy signal；Idle signal is analog current signal, and the current value of idle signal is more than the maximum current value of analog signal frame, so as to
Receiving module 2 distinguishes idle signal and analog signal frame；The current value of idle signal is 25mA in the present embodiment.
As shown in Figure 1,3, the receive process of receiving module 2 are the inverse process of transmission process, and receive process include following step
Suddenly：（1）Receiving module 2 receives successively sends the analog signal frame that module 1 is sent, and is converted into data signal groups successively
Ⅱ；（2）Receive after sending the idle signal that sends of module 1, it is defeated that each data signal groups II are converted to switching value by receiving module 2
Go out signal, and each switching value output signal is exported from corresponding output switch parameter line；Specifically：
As shown in Fig. 1,3,4, the analog-to-digital conversion module 9 of receiving module 2 persistently to send analog current signal that module 1 exports into
Row sampling, and sampled result is converted into digital signal；The duration T for sending the analog signal frame that module 1 is sent is described
5 times to 1000 times of the sampling period of analog-to-digital conversion module（In the present embodiment the sample frequency of D/A converter module for 50Hz extremely
10kHz）；Since the current value of idle signal is more than the current value of analog signal frame, when the electricity for the signal that receiving module 2 receives
Flow valuve is less than the current value of idle signal（The present embodiment is 25mA）When, represent that sending module 1 starts to send analog signal frame；Inspection
Measure after analog signal frame starts transmission, receiving module 2 starts to receive analog signal frame one by one.
As shown in Fig. 1,3,4, the signal output card 10 of receiving module 2 is connected with second clock module 11；Second clock mould
Block 11 and 7 time synchronisation of the first clock module for sending module 1；Duration of the second clock module 11 every analog signal frame
T sends trigger signal to signal output card 10；The trigger signal of second clock module 11 and the trigger signal of the first clock module 7
It is synchronous to send, so that receiving module 2 receives analog signal frame；In receive process, analog-to-digital conversion module 9 is persistently to analog signal frame
Sampled, and analog signal frame is converted into data signal groups II；In the durations T of an analog signal frame, modulus
Modular converter 9 can carry out multiple repairing weld to analog signal frame, and obtain the sampled value of multiple data signal groups II, signal output card
10 can be filtered the sampled value of multiple data signal groups II, to reduce transmission error；In receive process, Mei Dangjie
Trigger signal is received, signal output card 10 is preserved currently received data signal groups II, and starts to receive next number
Word signal group II, until receiving module 2 receives idle signal.
As shown in Fig. 1,3,4, after receiving idle signal, represent that whole analog signal frames finish receiving；Signal output card
10 by II splicing and recovery of each data signal groups of its storage inside into switching value output signal, and by each switching value output signal
Exported from corresponding output switch parameter line 4；So far receiving module 2 completes receive process.
The advantageous effects of the present embodiment：The digital signal of more on-off model lines is grouped coding, and is adopted
It is transmitted with two-wire system signal wire, can effectively reduces the number of circuit；This transmission mode is big with signal conveying capacity,
The advantages of signal stabilization, failure is few, and cost is low；Also had using two-ways transmitting multi-way switching values signal excellent easy to what is safeguarded
Point, can effectively reduce the overhaul of the equipments time.
Claims (10)
1. a kind of digital and analogue signals transmission system, it is characterised in that the digital and analogue signals transmission system includes sending module and reception
Module；The transmission module includes data acquisition card and D/A converter module, and the input terminal of the data acquisition card is connected with
Some On-off signal lines, the output terminal of the data acquisition card connect the input terminal of the D/A converter module；The reception
Module includes analog-to-digital conversion module and signal output card, and the output terminal of the analog-to-digital conversion module connects the signal output card
Input terminal；The output terminal of the signal output card is connected with some output switch parameter lines；The output of the D/A converter module
Connected between end and the input terminal of the analog-to-digital conversion module by conducting wire.
2. a kind of digital and analogue signals transmission system according to claim 1, it is characterised in that the D/A converter module is number
Word-current conversion module；The analog-to-digital conversion module is electric current-data-converting block；Connect the D/A converter module and institute
The conducting wire stated between analog-to-digital conversion module includes a ground wire and a signal wire.
A kind of 3. digital and analogue signals transmission system according to claim 1, it is characterised in that the number of the On-off signal line
Mesh is identical with the number of the output switch parameter line.
4. a kind of digital and analogue signals transmission system according to claim 1, it is characterised in that the transmission module further includes the
One clock module, the output terminal of first clock module connect the data acquisition card；The receiving module further includes second
Clock module, the output terminal of the second clock module connect the signal output card；First clock module and described the
Two clock modules are run simultaneously.
A kind of 5. digital and analogue signals transmission system according to claim 1, it is characterised in that the D/A converter module it is defeated
Outlet is connected with disconnection detection device, and the disconnection detection device is used for the electric current for detecting the output terminal of the D/A converter module
And voltage.
6. a kind of transfer approach for being related to any digital and analogue signals transmission system in claim 1 to 5, it is characterised in that described
Transfer approach comprises the following steps：
In transmission process, send module and the input signal of On-off signal line is divided into some data signal groups I, the hair
Send module that each data signal groups I are converted into analog signal frame successively, and the analog signal frame is sent to reception mould
Group；After each analog signal frame is sent completely, the transmission module persistently sends idle signal to the receiving module；
In receive process, the receiving module receives the analog signal frame successively, and is converted into data signal groups II；
After receiving the idle signal, each data signal groups II are converted to switching value output signal by the receiving module, and
Each switching value output signal is exported from corresponding output switch parameter line.
A kind of 7. transfer approach of digital and analogue signals transmission system according to claim 6, it is characterised in that the numeral letter
Number group I and the data signal groups II are bigit, the data signal groups I and the data signal groups II
Bit wide is equal；The data acquisition card for sending module is used to the input signal of the On-off signal line being divided into some institutes
State data signal groups I；The signal output card of the receiving module is used for II splicing and recovery of data signal groups into switching value
Signal is exported, and each switching value output signal is exported from the corresponding output switch parameter line.
A kind of 8. transfer approach of digital and analogue signals transmission system according to claim 6, it is characterised in that the simulation letter
Number frame is analog current signal, and the duration of each analog signal frame is identical；The D/A converter module for sending module
For the data signal groups I to be converted to analog signal frame, the analog-to-digital conversion module of the receiving module is used for the mould
Intend signal frame and be converted to the data signal groups II；The idle signal is analog current signal, the electric current of the idle signal
Maximum current value of the value more than the analog signal frame.
A kind of 9. transfer approach of digital and analogue signals transmission system according to claim 8, it is characterised in that the reception mould
The analog-to-digital conversion module of group persistently samples the current signal of the transmission module output；When the analog-to-digital conversion mould
When block detects that the current value of current signal is less than the current value of the idle signal, the receiving module is according to second clock mould
The chronometric data of block receives the analog signal frame one by one；The duration of the analog signal frame is the analog-to-digital conversion module
5 times to 1000 times of sampling period.
10. the transfer approach of a kind of digital and analogue signals transmission system according to claim 8, it is characterised in that when the transmission
The disconnection detection device of module detects that the electric current of the output terminal of the analog-to-digital conversion module is zero and during excessive voltage, described disconnected
Road detection device sends disconnection fault alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711418862.6A CN108039042B (en) | 2017-12-25 | 2017-12-25 | Digital-analog signal transmission system and transmission method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711418862.6A CN108039042B (en) | 2017-12-25 | 2017-12-25 | Digital-analog signal transmission system and transmission method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108039042A true CN108039042A (en) | 2018-05-15 |
| CN108039042B CN108039042B (en) | 2024-01-26 |
Family
ID=62100974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711418862.6A Active CN108039042B (en) | 2017-12-25 | 2017-12-25 | Digital-analog signal transmission system and transmission method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108039042B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000078010A (en) * | 1998-08-31 | 2000-03-14 | Matsushita Electric Ind Co Ltd | Analog signal multiplex transmission device and its method |
| US20030112162A1 (en) * | 2001-12-17 | 2003-06-19 | Kawasaki Microelectronics, Inc. | Analog signal converter and mobile communication system using the same |
| CN1798016A (en) * | 2004-12-22 | 2006-07-05 | 鸿富锦精密工业（深圳）有限公司 | Encoding device and method for transferring digital data through uniline |
| CN202171455U (en) * | 2011-05-10 | 2012-03-21 | 赵新华 | Wireless type flow measurement monitoring instrument for hydrology cable way |
| CN102439925A (en) * | 2009-03-25 | 2012-05-02 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Method and circuit for signal transmission via a current loop |
| CN103336667A (en) * | 2013-07-05 | 2013-10-02 | 中国科学院光电技术研究所 | General multichannel data acquisition system |
| CN103544128A (en) * | 2013-10-28 | 2014-01-29 | 无锡中星微电子有限公司 | Inter-chip single signal line communication method, device and system |
| CN204166375U (en) * | 2014-11-07 | 2015-02-18 | 河海大学 | The multi-modal Process Control System of the large data-driven of industry |
| CN204946331U (en) * | 2015-08-07 | 2016-01-06 | 上海斐讯数据通信技术有限公司 | A kind of communication facilities and the system of simplification multipath signal propagation passage comprised thereof |
| CN105955175A (en) * | 2016-05-12 | 2016-09-21 | 李保华 | Garden electric equipment and communication method |
| CN207676478U (en) * | 2017-12-25 | 2018-07-31 | 上海昂丰装备科技有限公司 | A kind of digital and analogue signals conveyer system |
-
2017
- 2017-12-25 CN CN201711418862.6A patent/CN108039042B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000078010A (en) * | 1998-08-31 | 2000-03-14 | Matsushita Electric Ind Co Ltd | Analog signal multiplex transmission device and its method |
| US20030112162A1 (en) * | 2001-12-17 | 2003-06-19 | Kawasaki Microelectronics, Inc. | Analog signal converter and mobile communication system using the same |
| CN1798016A (en) * | 2004-12-22 | 2006-07-05 | 鸿富锦精密工业（深圳）有限公司 | Encoding device and method for transferring digital data through uniline |
| CN102439925A (en) * | 2009-03-25 | 2012-05-02 | 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 | Method and circuit for signal transmission via a current loop |
| CN202171455U (en) * | 2011-05-10 | 2012-03-21 | 赵新华 | Wireless type flow measurement monitoring instrument for hydrology cable way |
| CN103336667A (en) * | 2013-07-05 | 2013-10-02 | 中国科学院光电技术研究所 | General multichannel data acquisition system |
| CN103544128A (en) * | 2013-10-28 | 2014-01-29 | 无锡中星微电子有限公司 | Inter-chip single signal line communication method, device and system |
| CN204166375U (en) * | 2014-11-07 | 2015-02-18 | 河海大学 | The multi-modal Process Control System of the large data-driven of industry |
| CN204946331U (en) * | 2015-08-07 | 2016-01-06 | 上海斐讯数据通信技术有限公司 | A kind of communication facilities and the system of simplification multipath signal propagation passage comprised thereof |
| CN105955175A (en) * | 2016-05-12 | 2016-09-21 | 李保华 | Garden electric equipment and communication method |
| CN207676478U (en) * | 2017-12-25 | 2018-07-31 | 上海昂丰装备科技有限公司 | A kind of digital and analogue signals conveyer system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108039042B (en) | 2024-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101447122A (en) | Intelligent device for collecting, transmitting and controlling data of substation | |
| CN201134815Y (en) | Ethernet data acquisition and transmission system | |
| CN207676478U (en) | A kind of digital and analogue signals conveyer system | |
| CN105306327A (en) | Method for realizing microgrid control system based on high-speed Ethernet industrial bus | |
| CN104730397A (en) | Interoperation test system and method between distribution automation terminals | |
| CN203502802U (en) | Converter module control system | |
| CN108039042A (en) | A kind of digital and analogue signals transmission system and transfer approach | |
| CN105182966A (en) | Detection method of PLC and IO extension module | |
| CN100424965C (en) | The communication method of the distributed PC bus protection without the main station | |
| CN108646103A (en) | Automatic kernel phase system based on car switch and device | |
| CN205941794U (en) | Adjustment device of direct current system generating line voltage -to -ground | |
| CN207675902U (en) | A kind of high-tension battery packet state monitoring device | |
| CN105842563A (en) | Method for rapid collection of electric quantum of feeder terminal device | |
| CN106130478B (en) | Solar energy power generating detection system and method based on Hall voltage sensor | |
| CN216086166U (en) | Distributed control high-voltage reactive automatic compensation system | |
| CN206135817U (en) | Solar photovoltaic system's detection device based on hall sensor | |
| CN201322874Y (en) | Circuit structure for automatically detecting and correcting bus polarity | |
| CN105356611A (en) | Steady data synchronous screening method and telemechanical forwarding device using the same | |
| CN102571519B (en) | Intelligent scheduling device suitable for carrier communication of ring distribution network and method therefor | |
| CN204965172U (en) | PLC and IO extension module testing platform | |
| CN209731268U (en) | A kind of acquisition automation O&M device | |
| CN201348729Y (en) | Intelligent device for collecting, transmitting and controlling data for substation | |
| CN219643660U (en) | Intelligent electricity management system | |
| CN218071107U (en) | Node operation information monitoring and collecting module suitable for shore power system | |
| CN204101647U (en) | Insulation of electrical installation on-line monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |