CN109738787A - A kind of cable recognition methods and system - Google Patents
A kind of cable recognition methods and system Download PDFInfo
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- CN109738787A CN109738787A CN201811628755.0A CN201811628755A CN109738787A CN 109738787 A CN109738787 A CN 109738787A CN 201811628755 A CN201811628755 A CN 201811628755A CN 109738787 A CN109738787 A CN 109738787A
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Abstract
The present invention provides a kind of cable recognition methods and system, method includes: the series connection node being sequentially connected to the first end of all cable under test in series resistance network；Either objective cable is chosen in all cable under test, and the second end of the target cable is connected to cable identification equipment；The cable identification equipment obtains the electric signal that the target cable is connected to after the series resistance network, and determines the series connection node that the target cable connects on series resistance network according to the electric signal, so that it is determined that the first end of the cable out.The present invention can quickly recognize the connector of cable.
Description
Technical field
The present invention relates to cables to identify field, espespecially a kind of cable recognition methods and system.
Background technique
As the communication technology is more and more flourishing, the 5G epoch are at hand.
In data communication, it needs to handle communication data using many computer rooms, there are many equipment in computer room, and set
It is standby often to have up to a hundred cable connections between equipment.Staff needs to find every cable two in maintain equipment
The interface of a equipment room connection can not often be quickly found out two connectors of a cable, to equipment since cable quantity is more
Maintenance bring trouble.
In order to rapidly identify every cable, this application provides a kind of cable recognition methods and systems.
Summary of the invention
The object of the present invention is to provide a kind of cable recognition methods and systems, can quickly recognize the connector of cable.
Technical solution provided by the invention is as follows:
The present invention provides a kind of cable recognition methods, comprising steps of the first end of all cable under test is sequentially connected
Series connection node into series resistance network；Either objective cable is chosen in all cable under test, by the target cable
Second end is connected to cable identification equipment；The cable identification equipment obtains the target cable and is connected to the series resistance net
Electric signal after network, and the series connection section that the target cable connects on series resistance network is determined according to the electric signal
Point, so that it is determined that the first end of the cable out.
In one embodiment, cable identification equipment includes: first interface, second interface, ADC analog-digital converter,
Digital regulation resistance, processor；The first end of the ADC analog-digital converter is connected to the first end of the processor；The ADC mould
The second end of number converter is connected to the second end of processor by the digital regulation resistance；The of the ADC analog-digital converter
Three ends are connected to the first interface；4th end of the ADC analog-digital converter is connected to second interface；Further comprise the steps of: institute
It states digital regulation resistance and receives the control of Electric potentials signal that the processor is sent, the control of Electric potentials of the ADC analog-digital converter is existed
In preset range.
In one embodiment, the cable identification equipment obtains the target cable and is connected to the series resistance network
Electric signal afterwards, and the series connection node that the target cable connects on series resistance network is determined according to the electric signal,
So that it is determined that the first end of the cable out, specifically includes: the cable identification equipment obtains the target cable and is connected to institute
Electric signal after stating series resistance network is calculated according to the electric signal after the cable accesses the series resistance network
Resistance value, and the series connection node that the target cable connects on series resistance network is confirmed according to the resistance value, from
And determine the first end of the cable.
In one embodiment, this method further include: the series connection node in the series resistance network is successively arranged
Sequence, after confirming series connection node that the target cable connects on series resistance network, on a display screen described in display
The serial number for the series connection node that target cable connects on series resistance network.
In one embodiment, this method further include: the cable identification equipment accesses the series connection according to the cable
Resistance value after resistor network judges the series resistance network with the presence or absence of short circuit or breaking event.
The present invention also provides a kind of cable identifying systems, comprising: cable identifies equipment, at least one cable, series electrical
Hinder network；The series resistance network includes several series connection nodes；The first end of all cable under test is sequentially connected to institute
State the series connection node in series resistance network；The second end of a target cable in all cable under test is connected to cable identification to set
It is standby；The cable identification equipment is for obtaining the electric signal that the target cable is connected to after the series resistance network, and root
The series connection node that the target cable connects on series resistance network is determined according to the electric signal, so that it is determined that the electricity out
The first end of cable.
In one embodiment, cable identification equipment includes: first interface, second interface, ADC analog-digital converter,
Digital regulation resistance, processor, display；The first end of the ADC analog-digital converter is connected to the first end of the processor；Institute
The second end for stating ADC analog-digital converter is connected to the second end of processor by the digital regulation resistance；The ADC analog-to-digital conversion
The third end of device is connected to the first interface；4th end of the ADC analog-digital converter is connected to second interface；The processing
The third end of device is connected to the display；One end of cable is connected to the first interface of the cable identification equipment, the electricity
The other end of cable is connected to the series connection node of series resistance network；The ground terminal of the series connection node and the cable identify equipment
Second interface ground connection；The digital regulation resistance receives the control of Electric potentials signal that the processor is sent, and the ADC modulus is turned
The control of Electric potentials of parallel operation is within a preset range.
In one embodiment, the cable identifies equipment, is also used to obtain the target cable and is connected to the series connection
Electric signal after resistor network calculates the cable according to the electric signal and accesses the resistance after the series resistance network
Value, and the series connection node that the target cable connects on series resistance network is confirmed according to the resistance value.
In one embodiment, it is successively sorted to the series connection node in the series resistance network, the cable is known
Other equipment includes display screen；The display screen, which is used to work as, confirms the string that the target cable connects on series resistance network
After interlink point, the serial number for the series connection node that the target cable connects on series resistance network is shown.
In one embodiment, the cable identifies equipment, is also used to access the series resistance net according to the cable
Resistance value after network judges the series resistance network with the presence or absence of short circuit or breaking event.
A kind of cable recognition methods and system provided through the invention, can bring it is following at least one the utility model has the advantages that
The first end of all cable under test is sequentially connected to the series connection node in series resistance network by the application first；So
Either objective cable is chosen in all cable under test afterwards, the second end of the target cable is connected to cable identification equipment；
Cable identification equipment obtains target cable and is connected to the electric signal after series resistance network, and determines the mesh according to electric signal
The series connection node that mark cable connects on series resistance network, may thereby determine that out the first end of the cable.
Detailed description of the invention
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, to a kind of cable recognition methods and
Above-mentioned characteristic, technical characteristic, advantage and its implementation of system are further described.
Fig. 1 is a kind of flow diagram of one embodiment of cable recognition methods of the present invention；
Fig. 2 is a kind of flow diagram of another embodiment of cable recognition methods of the present invention；
Fig. 3 is a kind of circuit module schematic diagram of cable identification equipment in one embodiment of the invention；
Fig. 4 is the structural schematic diagram of series resistance network in one embodiment of the invention；
Fig. 5 is the circuit theory schematic diagram of series resistance network in one embodiment of the invention；
Fig. 6 is a kind of structural schematic diagram of cable identification equipment in one embodiment of the invention；
Fig. 7 is an electrical block diagram of processor in one embodiment of the invention；
Fig. 8 is an electrical block diagram of digital regulation resistance in one embodiment of the invention；
Fig. 9 is an electrical block diagram of ADC analog-digital converter in one embodiment of the invention；
Figure 10 is an electrical block diagram of ON-OFF control circuit in one embodiment of the invention；
Figure 11 is the structural schematic diagram of series resistance network in one embodiment of the invention；
Drawing reference numeral explanation:
11-ADC analog-digital converter, 12- digital regulation resistance, 13- processor, 14- display, 15- first interface, 16-
Two interfaces, 21- series resistance network.
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, Detailed description of the invention will be compareed below
A specific embodiment of the invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented
Its practical structures as product.In addition, there is identical structure or function in some figures so that simplified form is easy to understand
Component only symbolically depicts one of those, or has only marked one of those.Herein, "one" is not only indicated
" only this ", can also indicate the situation of " more than one ".
The present invention provides a kind of one embodiment of cable recognition methods, as shown in Figure 1, comprising:
The first end of all cable under test is sequentially connected to the series connection node in series resistance network by S101；
Before carrying out cable identification, need to prepare series resistance network, series resistance network is several electronic device strings
Resistor network made of connection.As shown in figure 4, series resistance network provided in this embodiment is the resistance net of resistance series connection and formation
Network, resistance may be set to 1K ohm, there is a series connection node between each resistance.
In certain computer rooms, often occur the feelings mutually wound since the cable connected between equipment is more, between cable
Condition leads to be hard to tell two interfaces of cable wherein.In the present embodiment, cable includes first end and second end, can will be owned
The first end of cable is sequentially connected to wear the series connection node in blue resistor network.
S102 chooses either objective cable in all cable under test, and the second end of the target cable is connected to cable
Identify equipment；
Specifically, a cable under test can be chosen as target cable, the second end of this root object cable is connected to electricity
Cable identifies equipment.
The identification of cable described in S103 equipment obtains the electric signal that the target cable is connected to after the series resistance network,
And the series connection node that the target cable connects on series resistance network is determined according to the electric signal, so that it is determined that institute out
State the first end of cable.
Specifically, cable first end is connected to series resistance network, the second end of cable is connected to cable identification equipment
First interface, the second interface of the ground terminal of series resistance network and cable identification equipment altogether, can form a series electrical
It hinders network-cable-cable and identifies that circuit loop of equipment-ground-series resistance network 21, cable identify the battery in equipment
It can be powered.Since the resistance value of cable is smaller, can be neglected, therefore when certain voltage, it can be according to the electricity detected
The current value in road circuit, or the resistance value of series resistance network is calculated.And each series connection node of series resistance network it
Between resistance value design when it is known that, it can therefore be appreciated that target cable connects in that series connection node.For example, when meter
Calculate obtain series resistance network resistance value be 23K ohm when, i.e., knowable target cable is attached to the 23rd series connection node
On, user, that is, knowable score cable first end, to identify cable.
The present invention also provides a kind of one embodiment of cable recognition methods, as shown in Figure 2, comprising:
The first end of all cable under test is sequentially connected to the series connection node in series resistance network by S201；
S202 chooses either objective cable in all cable under test, and the second end of the target cable is connected to cable
Identify equipment；
The identification of cable described in S203 equipment obtains the electric signal that the target cable is connected to after the series resistance network,
The cable is calculated according to the electric signal and accesses the resistance value after the series resistance network, and true according to the resistance value
The series connection node that the target cable connects on series resistance network is recognized, so that it is determined that the first end of the cable out.
It since the resistance value of cable is smaller, can be neglected, therefore when certain voltage, circuit can be obtained according to detection and is returned
The electric current on road, and then the resistance value of series resistance network can be calculated.And between each series connection node of series resistance network
Resistance value design when it is known that, it can therefore be appreciated that target cable connects in that series connection node.For example, when calculating
When resistance value to series resistance network is 23K ohm, i.e., knowable target cable is attached on the 23rd series connection node.
S204 successively sorts to the series connection node in the series resistance network, when confirming that the target cable exists
After the series connection node connected on series resistance network, show that the target cable connects on series resistance network on a display screen
The serial number of the series connection node connect.
It in the present embodiment, can successively be sorted to the series connection node in the series resistance network, such as first string
Interlink point is denoted as the first tagmeme, and second series connection node is denoted as the second tagmeme, where getting the first end of target cable
After series connection node, in the present embodiment, the serial number of this series connection node can be also shown by a display screen, user can intuitively know
That series connection node of the first end of target cable on series resistance network.
As shown in Fig. 3, Fig. 6, cable identification equipment includes: first interface 15, second interface 16, ADC analog-digital converter 11,
Digital regulation resistance 12, processor 13, display 14；The first end of the ADC analog-digital converter 11 is connected to the processor 13
First end；The second end of the ADC analog-digital converter 11 is connected to the second of processor 13 by the digital regulation resistance 12
End；The third end of the ADC analog-digital converter 11 is connected to the first interface 15；The 4th of the ADC analog-digital converter 11
End is connected to second interface 16；The third end of the processor 13 is connected to the display 14.
Specifically, needing to prepare series resistance network 21 before carrying out cable identification, series resistance network 21 is several
The resistor network that electronic device is connected in series.As shown in figure 4, series resistance network 21 provided in this embodiment be resistance connect and
The resistor network of formation, series resistance schematic diagram as shown in Figure 5, resistance may be set to the Europe 1K, have between each resistance a string
Interlink point,.
When identifying cable, the series connection that the first end of all cable under test can be sequentially connected in series resistance network 21
Node；Specifically, cable includes first end and second end, the first end of all cables can be sequentially connected to wear blue resistor network
In series connection node.
Then either objective cable is chosen in all cable under test, and the second end of the target cable is connected to cable
Identify the first interface 15 of equipment；The ground terminal of the second interface 16 of cable identification equipment and series resistance network 21 is grounded.
The cable identification equipment obtains the electric signal that the target cable is connected to after the series resistance network 21, and according to described
Electric signal determines the series connection node that the target cable connects on series resistance network 21, so that it is determined that the cable out
First end.
Specifically, cable first end is connected to series resistance network 21, the second end of cable is connected to cable identification and sets
Standby first interface 15, the second interface 16 of ground terminal and cable the identification equipment of series resistance network 21 altogether, can form one
A series resistance network 21- cable-cable identifies circuit loop of equipment-ground-series resistance network 21, and cable identification is set
Battery in standby can be powered.Since the resistance value of cable is smaller, can be neglected, therefore when certain voltage, it can basis
The current value of the circuit loop detected, or the resistance value of series resistance network 21 is calculated.And series resistance network 21
Resistance value between each series connection node in design it is known that, it can therefore be appreciated that target cable is connect in that a string of interlinks
Point.For example, that is, knowable target cable is connection when the resistance value that series resistance network 21 is calculated is 23K ohm
Onto the 23rd series connection node, user, that is, knowable score cable first end, to identify cable.
In an embodiment of the invention, cable identification equipment includes: first interface 15, second interface 16, ADC modulus turn
Parallel operation 11, digital regulation resistance 12, processor 13, display 14；The first end of the ADC analog-digital converter 11 is connected to the place
Manage the first end of device 13；The second end of the ADC analog-digital converter 11 is connected to processor 13 by the digital regulation resistance 12
Second end；The third end of the ADC analog-digital converter 11 is connected to the first interface 15；The ADC analog-digital converter 11
The 4th end be connected to second interface 16；The third end of the processor 13 is connected to the display 14.
As shown in fig. 6, cable identification equipment includes box-shaped shell, the box-shaped shell is equipped with opening, for installing
State display screen；Two conductive interfaces are additionally provided in the box-shaped shell, the respectively described first interface 15 and the second interface
16；The ADC analog-digital converter 11, the digital regulation resistance 12, the processor 13 it is integrated with inside the box-shaped shell.
As shown in fig. 7, the processor 13 is single-chip microcontroller U6, model STM8S103K3；As shown in figure 8, the number
Word potentiometer 12 includes digital current potential chip U5, model AD5241.
The SCL interface of the current potential chip U5 is connected to the SCL interface of the single-chip microcontroller U6；The current potential chip U5's
SDA interface is connected to the SDA interface of the single-chip microcontroller U6；The AD1 interface of the current potential chip U5 is connected to the single-chip microcontroller U6
AD1 interface；The AD0 interface of the current potential chip U5 is connected to the AD0 interface of the single-chip microcontroller U6；The current potential chip U5's
RoutA interface is connected to 3.3V power supply by resistance R11；RoutA interface, the RoutB interface of the current potential chip U5 connects respectively
It is connected to the ADC analog-digital converter 11.The current potential chip U5 is used for the control instruction sent according to single-chip microcontroller U6, makes ADC mould
The reference voltage of number converter 11 is between 1.8V~2.5V.When 21 resistance of series resistance network where cable under test is the Europe 1K
When nurse, the minimum resistance value of digital regulation resistance 12 is 1.176K ohm；When 21 resistance of series resistance network where cable under test is
At 2K ohm, the minimum resistance value of digital regulation resistance 12 is 2.352K ohm；When 21 electricity of series resistance network where cable under test
When resistance is 3K ohm, the minimum resistance value of digital regulation resistance 12 is 3.316K ohm；And so on, when the series connection where cable under test
When 21 resistance of resistor network is 100K ohm, the minimum resistance value of digital regulation resistance 12 is 100K ohm.Setting through this embodiment
Meter, can also detect the short circuit or open circuit conditions of 21 place circuit of series resistance network.When the resistance regardless of digital regulation resistance 12
How value changes, when 21 resistance of series resistance network where cable under test is all 0 ohm, then it represents that short-circuit thing occurs in circuit
Part；When 21 resistance of series resistance network where cable under test changes with the resistance value of digital regulation resistance 12, then it represents that electricity
There is breaking event in road.
As shown in figure 9, the ADC analog-digital converter 11 includes AD conversion chip U4, the REFIN of the AD conversion chip U4
+ interface is connected to the RoutA interface of the current potential chip U5, and the REFIN- interface of the AD conversion chip U4 is connected to current potential core
The RoutB interface of piece U5；The AIN1+ interface of the AD conversion chip U4 also passes through thermistor RT1 and is connected to current potential chip U5
RoutB interface；The AIN1+ interface of the AD conversion chip U4 also passes through capacitor C22 and is connected to the AD conversion chip U4's
AIN1- interface, the AIN1- interfacing ground of the AD conversion chip U4.The ADC analog-digital converter 11 is used for collected mould
Quasi- electric signal is transmitted to single-chip microcontroller after being converted into digital electric signal.
Single-chip microcontroller is calculated according to the electric signal after the morals target cable is connected to the series resistance network 21 is obtained
The cable accesses the resistance value after the series resistance network 21 out, and confirms the target cable according to the resistance value
The series connection node connected on series resistance network 21, so that it is determined that the first end of the cable out.
Optionally, the present embodiment can also successively sort to the series connection node in the series resistance network 21, when true
After recognizing the series connection node that the target cable connects on series resistance network 21, the target electricity is shown on a display screen
The serial number for the series connection node that cable connects on series resistance network 21.Such as first series connection node is denoted as the first tagmeme, the
Two series connection nodes are denoted as the second tagmeme, after getting the series connection node where the first end of target cable, in the present embodiment,
The serial number of this series connection node can be also shown by a display screen, user can intuitively know that the first end of target cable is being connected
That series connection node on resistor network 21.
Preferably, as shown in Figure 10, cable identification equipment further includes ON-OFF control circuit；The ON-OFF control circuit includes
Switch SW1, PMOS tube, NMOS tube；The source electrode of the PMOS tube is connected to power supply, and the drain electrode of the PMOS tube is connected to battery,
The drain electrode of the PMOS tube also passes through capacitor C5 and is grounded；The drain electrode of the PMOS tube is connected to one end of resistance R2, the PMOS
The grid of pipe is connected to the other end of the resistance R2, and the grid of the PMOS tube is additionally coupled to one end of resistance R4, described
The other end of resistance R4 is connected to switch SW1, and the other end of the resistance R4 is additionally coupled to the cathode of cache switching diodes D2,
The anode of the cache switching diodes D2 is connected to the 16th interface of single-chip microcontroller U6, receives the POWER_BUT_ of single-chip microcontroller U6
TEXT signal.
The grid of the PMOS tube is additionally coupled to one end of resistance R5, and the other end of resistance R5 is connected to the NMOS tube
Source electrode, the drain electrode of the NMOS tube are connected to the switch SW1, and the grid of the NMOS tube is connected to described by resistance R7
The drain electrode of NMOS tube, the grid of the NMOS tube are additionally coupled to one end of resistance R6, and the other end of resistance R6 is connected to single-chip microcontroller
The 18th interface of U6 exports POWER_BUT_CTL signal to single-chip microcontroller U6；Resistance R6 also with this by light emitting diode D3,
Resistance R8 is connected to the drain electrode of the NMOS tube；The grounded drain of the NMOS tube.
After persistently pressing lower switch SW1, PMOS tube conducting is powered by power supply 3.3V to single-chip microcontroller, when detection single-chip microcontroller
When the POWER_BUT_CTL signal of output is high level, light emitting diode D2 is lighted, NMOS transistor conduction.As trip switch SW1
When, cable identifies that device power-up is completed.When persistently pressing lower switch SW1 again, detection POWER_BUT_TEXT signal is low electricity
Flat, if POWER_BUT_TEXT is low level, and when continuing one second or more, light emitting diode D2 extinguishes, and NOMS pipe disconnects, and works as pine
When switch SW1, PMOS tube shutdown, cable identifies that equipment completes shutdown.The ON-OFF control circuit energy provided through this embodiment
Enough realize a key switch machine.
The present invention provides a kind of one embodiment of cable identifying system, system includes cable identification equipment, at least one
Root cable, series resistance network 21；The series resistance network 21 includes several series connection nodes；
Cable identification equipment as described in Figure 3 includes: first interface 15, second interface 16, ADC analog-digital converter 11, number
Potentiometer 12, processor 13, display 14；The first end of the ADC analog-digital converter 11 is connected to the of the processor 13
One end；The second end of the ADC analog-digital converter 11 is connected to the second end of processor 13 by the digital regulation resistance 12；Institute
The third end for stating ADC analog-digital converter 11 is connected to the first interface 15；4th end of the ADC analog-digital converter 11 connects
To second interface 16；The third end of the processor 13 is connected to the display 14；One end of cable is connected to the cable
Identify that the first interface 15 of equipment, the other end of the cable are connected to the series connection node of series resistance network 21；The series connection
The second interface 16 of the ground terminal of node and cable identification equipment is grounded.
When identifying cable, the first end of all cable under test is sequentially connected to the series connection in the series resistance network
Node；The second end of a target cable in all cable under test is connected to cable identification equipment；The cable identification equipment is used
Electric signal after obtaining the target cable and being connected to the series resistance network 21, and institute is determined according to the electric signal
The series connection node that target cable connects on series resistance network is stated, so that it is determined that the first end of the cable out.
Specifically, needing to prepare series resistance network 21 before carrying out cable identification, series resistance network 21 is several
The resistor network that electronic device is connected in series.As shown in figure 4, series resistance network 21 provided in this embodiment be resistance connect and
The resistor network of formation, series resistance schematic diagram as shown in Figure 5, resistance may be set to the Europe 1K, have between each resistance a string
Interlink point.Optionally, as shown in figure 11, series resistance network 21 can be integrated in a box-shaped shell.
When identifying cable, the series connection that the first end of all cable under test can be sequentially connected in series resistance network 21
Node；Specifically, cable includes first end and second end, the first end of all cables can be sequentially connected to wear blue resistor network
In series connection node.
Then either objective cable is chosen in all cable under test, and the second end of the target cable is connected to cable
Identify the first interface 15 of equipment；The ground terminal of the second interface 16 of cable identification equipment and series resistance network 21 is grounded.
The cable identification equipment obtains the electric signal that the target cable is connected to after the series resistance network 21, and according to described
Electric signal determines the series connection node that the target cable connects on series resistance network 21, so that it is determined that the cable out
First end.
Specifically, cable first end is connected to series resistance network 21, the second end of cable is connected to cable identification and sets
Standby first interface 15, the second interface 16 of ground terminal and cable the identification equipment of series resistance network 21 altogether, can form one
A series resistance network 21- cable-cable identifies circuit loop of equipment-ground-series resistance network 21, and cable identification is set
Battery in standby can be powered.Since the resistance value of cable is smaller, can be neglected, therefore when certain voltage, it can basis
The current value of the circuit loop detected, or the resistance value of series resistance network 21 is calculated.And series resistance network 21
Resistance value between each series connection node in design it is known that, it can therefore be appreciated that target cable is connect in that a string of interlinks
Point.For example, that is, knowable target cable is connection when the resistance value that series resistance network 21 is calculated is 23K ohm
Onto the 23rd series connection node, user, that is, knowable score cable first end, to identify cable.
The present invention provides a kind of another embodiment of cable identifying system, system includes cable identification equipment, at least
A piece cable, series resistance network 21；
When identifying cable, the first end of all cable under test is sequentially connected to the series connection in the series resistance network
Node；The second end of a target cable in all cable under test is connected to cable identification equipment；The cable identification equipment is used
Electric signal after obtaining the target cable and being connected to the series resistance network 21 calculates described according to the electric signal
Cable accesses the resistance value after the series resistance network, and confirms the target cable in series electrical according to the resistance value
The series connection node connected on resistance network.It is successively sorted to the series connection node in the series resistance network, the cable
Identify that equipment includes display screen；The display screen, which is used to work as, confirms what the target cable connected on series resistance network
After series connection node, the serial number for the series connection node that the target cable connects on series resistance network is shown.
The cable identification equipment includes: first interface 15, second interface 16, ADC analog-digital converter 11, digital regulation resistance
12, processor 13, display 14；
The first end of the ADC analog-digital converter 11 is connected to the first end of the processor 13；The ADC analog-to-digital conversion
The second end of device 11 is connected to the second end of processor 13 by the digital regulation resistance 12；The ADC analog-digital converter 11
Third end is connected to the first interface 15；4th end of the ADC analog-digital converter 11 is connected to second interface 16；The place
The third end of reason device 13 is connected to the display 14；
One end of cable is connected to the first interface 15 of the cable identification equipment, and the other end of the cable is connected to string
Join the series connection node of resistor network 21；The ground terminal of the series connection node and the second interface 16 of cable identification equipment connect
Ground.
As shown in fig. 6, cable identification equipment includes box-shaped shell, the box-shaped shell is equipped with opening, for installing
State display screen；It is additionally provided with two conductive interfaces in the box-shaped shell, is respectively used to be connected to the first interface 15 and described
Second interface 16；The ADC analog-digital converter 11, the digital regulation resistance 12, the processor 13 are integrated and described box-like outer
Inside shell.
As shown in fig. 7, the processor 13 is single-chip microcontroller U6, model STM8S103K3；As shown in figure 8, the number
Word potentiometer 12 includes digital current potential chip U5, model AD5241.
The SCL interface of the current potential chip U5 is connected to the SCL interface of the single-chip microcontroller U6；The current potential chip U5's
SDA interface is connected to the SDA interface of the single-chip microcontroller U6；The AD1 interface of the current potential chip U5 is connected to the single-chip microcontroller U6
AD1 interface；The AD0 interface of the current potential chip U5 is connected to the AD0 interface of the single-chip microcontroller U6；The current potential chip U5's
RoutA interface is connected to 3.3V power supply by resistance R11；RoutA interface, the RoutB interface of the current potential chip U5 connects respectively
It is connected to the ADC analog-digital converter 11.The current potential chip U5 is used for the control instruction sent according to single-chip microcontroller U6, makes ADC mould
The reference voltage of number converter 11 is between 1.8V~2.5V.When 21 resistance of series resistance network where cable under test is the Europe 1K
When nurse, the minimum resistance value of digital regulation resistance 12 is 1.176K ohm；When 21 resistance of series resistance network where cable under test is
At 2K ohm, the minimum resistance value of digital regulation resistance 12 is 2.352K ohm；When 21 electricity of series resistance network where cable under test
When resistance is 3K ohm, the minimum resistance value of digital regulation resistance 12 is 3.316K ohm；And so on, when the series connection where cable under test
When 21 resistance of resistor network is 100K ohm, the minimum resistance value of digital regulation resistance 12 is 100K ohm.Setting through this embodiment
Meter, the cable identify equipment, are also used to access the resistance value after the series resistance network 21 according to the cable, judge institute
Series resistance network 21 is stated with the presence or absence of short circuit or breaking event.When the resistance value regardless of digital regulation resistance 12 changes, when
When 21 resistance of series resistance network where cable under test is all 0 ohm, then it represents that short circuit event occurs in circuit；Work as cable under test
When 21 resistance of series resistance network at place changes with the resistance value of digital regulation resistance 12, then it represents that breaking thing occurs in circuit
Part.
As shown in figure 9, the ADC analog-digital converter 11 includes AD conversion chip U4, the REFIN of the AD conversion chip U4
+ interface is connected to the RoutA interface of the current potential chip U5, and the REFIN- interface of the AD conversion chip U4 is connected to current potential core
The RoutB interface of piece U5；The AIN1+ interface of the AD conversion chip U4 also passes through thermistor RT1 and is connected to current potential chip U5
RoutB interface；The AIN1+ interface of the AD conversion chip U4 also passes through capacitor C22 and is connected to the AD conversion chip U4's
AIN1- interface, the AIN1- interfacing ground of the AD conversion chip U4.The ADC analog-digital converter 11 is used for collected mould
Quasi- electric signal is transmitted to single-chip microcontroller after being converted into digital electric signal.
Single-chip microcontroller is calculated according to the electric signal after the morals target cable is connected to the series resistance network 21 is obtained
The cable accesses the resistance value after the series resistance network 21 out, and confirms the target cable according to the resistance value
The series connection node connected on series resistance network 21, so that it is determined that the first end of the cable out.
Optionally, the present embodiment can also successively sort to the series connection node in the series resistance network 21, when true
After recognizing the series connection node that the target cable connects on series resistance network 21, the target electricity is shown on a display screen
The serial number for the series connection node that cable connects on series resistance network 21.Such as first series connection node is denoted as the first tagmeme, the
Two series connection nodes are denoted as the second tagmeme, after getting the series connection node where the first end of target cable, in the present embodiment,
The serial number of this series connection node can be also shown by a display screen, user can intuitively know that the first end of target cable is being connected
That series connection node on resistor network 21.
Preferably, as shown in Figure 10, cable identification equipment further includes ON-OFF control circuit；The ON-OFF control circuit includes
Switch SW1, PMOS tube, NMOS tube；The source electrode of the PMOS tube is connected to power supply, and the drain electrode of the PMOS tube is connected to battery,
The drain electrode of the PMOS tube also passes through capacitor C5 and is grounded；The drain electrode of the PMOS tube is connected to one end of resistance R2, the PMOS
The grid of pipe is connected to the other end of the resistance R2, and the grid of the PMOS tube is additionally coupled to one end of resistance R4, described
The other end of resistance R4 is connected to switch SW1, and the other end of the resistance R4 is additionally coupled to the cathode of cache switching diodes D2,
The anode of the cache switching diodes D2 is connected to the 16th interface of single-chip microcontroller U6, receives the POWER_BUT_ of single-chip microcontroller U6
TEXT signal；
The grid of the PMOS tube is additionally coupled to one end of resistance R5, and the other end of resistance R5 is connected to the NMOS tube
Source electrode, the drain electrode of the NMOS tube are connected to the switch SW1, and the grid of the NMOS tube is connected to described by resistance R7
The drain electrode of NMOS tube, the grid of the NMOS tube are additionally coupled to one end of resistance R6, and the other end of resistance R6 is connected to single-chip microcontroller
The 18th interface of U6 exports POWER_BUT_CTL signal to single-chip microcontroller U6；Resistance R6 also with this by light emitting diode D3,
Resistance R8 is connected to the drain electrode of the NMOS tube；The grounded drain of the NMOS tube.
After persistently pressing lower switch SW1, PMOS tube conducting is powered by power supply 3.3V to single-chip microcontroller, when detection single-chip microcontroller
When the POWER_BUT_CTL signal of output is high level, light emitting diode D2 is lighted, NMOS transistor conduction.As trip switch SW1
When, cable identifies that device power-up is completed.When persistently pressing lower switch SW1 again, detection POWER_BUT_TEXT signal is low electricity
Flat, if POWER_BUT_TEXT is low level, and when continuing one second or more, light emitting diode D2 extinguishes, and NOMS pipe disconnects, and works as pine
When switch SW1, PMOS tube shutdown, cable identifies that equipment completes shutdown.The ON-OFF control circuit energy provided through this embodiment
Enough realize a key switch machine.
It should be noted that above-described embodiment can be freely combined as needed.The above is only of the invention preferred
Embodiment, it is noted that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, several improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (10)
1. a kind of cable recognition methods, which is characterized in that comprising steps of
The first end of all cable under test is sequentially connected to the series connection node in series resistance network；
Either objective cable is chosen in all cable under test, and the second end of the target cable is connected to cable identification and is set
It is standby；
The cable identification equipment obtains the electric signal that the target cable is connected to after the series resistance network, and according to institute
It states electric signal and determines the series connection node that the target cable connects on series resistance network, so that it is determined that the cable out
First end.
2. a kind of cable recognition methods according to claim 1, which is characterized in that cable identification equipment includes: the
One interface, second interface, ADC analog-digital converter, digital regulation resistance, processor；
The first end of the ADC analog-digital converter is connected to the first end of the processor；The second of the ADC analog-digital converter
End is connected to the second end of processor by the digital regulation resistance；The third end of the ADC analog-digital converter is connected to described
First interface；4th end of the ADC analog-digital converter is connected to second interface；
It further comprises the steps of: the digital regulation resistance and receives the control of Electric potentials signal that the processor is sent, the ADC modulus is turned
The control of Electric potentials of parallel operation is within a preset range.
3. a kind of cable recognition methods according to claim 1, which is characterized in that described in the cable identification equipment obtains
Target cable is connected to the electric signal after the series resistance network, and determines that the target cable exists according to the electric signal
The series connection node connected on series resistance network, so that it is determined that the first end of the cable out, specifically includes:
The cable identification equipment obtains the electric signal that the target cable is connected to after the series resistance network, according to described
Electric signal calculates the cable and accesses the resistance value after the series resistance network, and is confirmed according to the resistance value described
The series connection node that target cable connects on series resistance network, so that it is determined that the first end of the cable out.
4. a kind of cable recognition methods according to claim 1, which is characterized in that further include:
It is successively sorted to the series connection node in the series resistance network, when confirming the target cable in series resistance
After the series connection node connected on network, show what the target cable connected on the series resistance network on a display screen
Series connection node serial number.
5. a kind of cable recognition methods described in any one of -4 according to claim 1, which is characterized in that further include:
The cable identification equipment accesses the resistance value after the series resistance network according to the cable, judges the series electrical
Network is hindered with the presence or absence of short circuit or breaking event.
6. a kind of cable identifying system characterized by comprising cable identifies equipment, at least one cable, series resistance net
Network；
The series resistance network includes several series connection nodes；
The first end of all cable under test is sequentially connected to the series connection node in the series resistance network；By all electricity to be measured
The second end of a target cable is connected to cable identification equipment in cable；
The cable identification equipment is for obtaining the electric signal that the target cable is connected to after the series resistance network, and root
The series connection node that the target cable connects on series resistance network is determined according to the electric signal, so that it is determined that the electricity out
The first end of cable.
7. a kind of cable identifying system according to claim 6, which is characterized in that cable identification equipment includes: the
One interface, second interface, ADC analog-digital converter, digital regulation resistance, processor, display；
The first end of the ADC analog-digital converter is connected to the first end of the processor；The second of the ADC analog-digital converter
End is connected to the second end of processor by the digital regulation resistance；The third end of the ADC analog-digital converter is connected to described
First interface；4th end of the ADC analog-digital converter is connected to second interface；The third end of the processor is connected to described
Display；
One end of cable is connected to the first interface of the cable identification equipment, and the other end of the cable is connected to series resistance
The series connection node of network；The second interface of the ground terminal of the series connection node and cable identification equipment is grounded；
The digital regulation resistance receives the control of Electric potentials signal that the processor is sent, by the current potential of the ADC analog-digital converter
Control is within a preset range.
8. a kind of cable identifying system according to claim 6, it is characterised in that:
The cable identifies equipment, is also used to obtain the electric signal that the target cable is connected to after the series resistance network,
The cable is calculated according to the electric signal and accesses the resistance value after the series resistance network, and true according to the resistance value
Recognize the series connection node that the target cable connects on series resistance network.
9. a kind of cable identifying system according to claim 6, it is characterised in that:
It is successively sorted to the series connection node in the series resistance network；
The cable identification equipment includes display screen；
The display screen is used to show after confirming series connection node that the target cable connects on series resistance network
The serial number for the series connection node that the target cable connects on series resistance network.
10. a kind of cable identifying system according to any one of claim 6-9, which is characterized in that further include:
The cable identifies equipment, is also used to access the resistance value after the series resistance network according to the cable, judges institute
Series resistance network is stated with the presence or absence of short circuit or breaking event.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811628755.0A CN109738787A (en) | 2018-12-28 | 2018-12-28 | A kind of cable recognition methods and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811628755.0A CN109738787A (en) | 2018-12-28 | 2018-12-28 | A kind of cable recognition methods and system |
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| CN109738787A true CN109738787A (en) | 2019-05-10 |
Family
ID=66361952
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|---|---|---|---|
| CN201811628755.0A Pending CN109738787A (en) | 2018-12-28 | 2018-12-28 | A kind of cable recognition methods and system |
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| CN (1) | CN109738787A (en) |
Cited By (1)
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|---|---|---|---|---|
| CN112098901A (en) * | 2020-08-12 | 2020-12-18 | 深圳供电局有限公司 | Cable identification method and device, computer equipment and readable storage medium |
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Application publication date: 20190510 |