CN105935291A - Access channel recognition method and system of multi-channel device - Google Patents
Access channel recognition method and system of multi-channel device Download PDFInfo
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- CN105935291A CN105935291A CN201610451416.4A CN201610451416A CN105935291A CN 105935291 A CN105935291 A CN 105935291A CN 201610451416 A CN201610451416 A CN 201610451416A CN 105935291 A CN105935291 A CN 105935291A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/021—Measuring pressure in heart or blood vessels
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0223—Operational features of calibration, e.g. protocols for calibrating sensors
Abstract
The invention relates to an access channel recognition method and system of a multi-channel device. The method comprises the steps that a trigger signal is sent to a measuring device accessed into a first access channel, a response signal generated by the measuring device for responding the trigger signal is received, and output signals of all channels of the multi-channel device connected with the measuring device are simultaneously received; the response signal is compared with all the output signals of the multi-channel device separately to acquire the output signal matched with the response signal; the channel corresponding to the matched output signal is recognized as a second access channel of the measuring device on the multi-channel device. According to the access channel recognition method and system of the multi-channel device, operation is easy, the accuracy rate is high, little time is consumed, and no interference can be generated to the other channels.
Description
Technical field
The present invention relates to technical field of electronic equipment, the access passage particularly relating to a kind of Multichannel device is known
Other method and system.
Background technology
When using multimeter to calibrate one group of measurement device, the way of a kind of routine is by each
The one end measuring device is respectively connected to each passage of multimeter, and by multimeter and measurement device
Other end Access Control terminal, carried out the measurement data of calibration measurement device by the data of multimeter.
Being calculated as example with sphygomanometer and multi-path pressure, when sphygomanometer is carried out pressure calibration, sphygomanometer valve can be inserted
Entering in certain Measurement channel of multi-path pressure meter, sphygomanometer and multi-path pressure meter are both needed to and computer simultaneously
Communication connection, in order to multi-path pressure counts and matches with sphygomanometer data and calibrate, with multichannel pressure
Power counts the pressure measurement data calibrating sphygomanometer or blood pressure module.Connect block diagram to be illustrated in fig. 1 shown below
(wherein sphygomanometer 1 can be connected with any passage gas circuit of multi-path pressure meter, other sphygomanometers and this phase
With).
In existing technical scheme, sphygomanometer valve is inserted into which passage of multi-path pressure meter needs people
Work is observed and is determined, manually selects the passage of insertion in upper computer selecting frame.Sphygomanometer and the number of computer simultaneously
According to communication port be also required to sphygomanometer connect computer time manual observation, then on host computer select sphygomanometer with
The communication port of computer.Sphygomanometer inserts after the communication port of passage and sphygomanometer and computer determines completely
Can carry out pressure data calibration, the channel data of multi-path pressure meter could be with sphygomanometer data one_to_one corresponding.
Existing scheme software design flow chart is as shown in Figure 2.
First existing technical scheme there is problems in that, sphygomanometer valve is inserted into multi-path pressure meter
Passage needs to select on host computer manually, complex operation, increases human cost, and easily passage choosing
Select and make mistakes；Secondly, the passway (com port) that sphygomanometer communicates with computer data needs artificial at host computer
Upper selection, is difficult to operation, and easily selects to make mistakes；Again, when each sphygomanometer is if desired calibrated, all
Need to select the passage of valve insertion and the passage with compunlcation, when operation is complicated and selects mistake, by nothing
Method is calibrated, and easily the passage calibrated is formed interference.
In sum, prior art effect when identifying insertion passage is poor.
Summary of the invention
Based on this, it is necessary to for the prior art problem that effect is poor when identifying insertion passage, it is provided that one
Plant the access channel recognition method and system of Multichannel device.
A kind of access channel recognition method of Multichannel device, comprises the following steps:
Send to the measurement device accessing the first access passage and trigger signal, receive described measurement response device institute
State and trigger the response signal that signal generates, and receive Multichannel device each connecting described measurement device simultaneously
The output signal of individual passage；
Respectively each output signal of described response signal with described Multichannel device is compared, obtain with
The output signal that described response signal matches；
It is that described measurement device fills at described multichannel by channel recognition corresponding for the described output signal matched
The the second access passage put.
A kind of access lane identification system of Multichannel device, including:
Signal transmitting and receiving module, triggers signal for sending to the measurement device accessing the first access passage, receives
Trigger the response signal that signal generates described in described measurement response device, and receive the described measuring device of connection simultaneously
The output signal of each passage of the Multichannel device of part；
Comparison module, for entering each output signal of described response signal with described Multichannel device respectively
Row compares, and obtains the output signal matched with described response signal；
Identification module, being used for channel recognition corresponding for the described output signal matched is described measurement device
The second access passage on described Multichannel device.
The access channel recognition method and system of above-mentioned Multichannel device, by accessing the first access passage
Measure device and send triggering signal, response signal can be generated under the triggering triggering signal owing to measuring device,
And the second access passage measuring the Multichannel device that device accesses can correspondingly generate an output signal, because of
This, when the output signal and described response signal that detect that certain second access passage of Multichannel device exports
When matching, automatically can access channel recognition by corresponding for this output signal second is that described device is described many
The second access passage on lane device.The access channel recognition method and system of above-mentioned Multichannel device without
Artificial selection's passage, simple to operate, accuracy is high, time-consumingly few, and other passages will not be produced interference.
Accompanying drawing explanation
Fig. 1 is the connection block diagram of Multichannel device and measurement apparatus；
Fig. 2 is the flow chart of existing access channel recognition method；
Fig. 3 is the flow chart of the access channel recognition method of the Multichannel device of the present invention；
Fig. 4 is the structural representation accessing lane identification system of the Multichannel device of the present invention.
Detailed description of the invention
Embodiment to the access channel recognition method and system of the Multichannel device of the present invention below in conjunction with the accompanying drawings
Illustrate.
For convenience of description, the most still with the measurement device described in background technology as sphygomanometer, multichannel dress
It is set to multi-path pressure be calculated as example technical scheme is illustrated.But technical scheme is also
It is not limited to this embodiment.The method and system of the present invention can be in the original sphygomanometer shown in Fig. 1 and manifold
In the case of the connected mode of road piezometer and computer is the most constant, automatically identify sphygomanometer and computer
Data communication channel and sphygomanometer valve insert the manometric passage of multi-channel high-accuracy.
Fig. 3 is the flow chart of the access channel recognition method of the Multichannel device of the present invention.As it is shown on figure 3,
The access channel recognition method of described Multichannel device can comprise the following steps that
S1, sends to the measurement device accessing the first access passage and triggers signal, receive described measurement device and ring
Answer the response signal that described triggering signal generates, and receive the Multichannel device connecting described measurement device simultaneously
The output signal of each passage；
When using multi-path pressure meter that sphygomanometer is calibrated, the communication interface of sphygomanometer can be accessed electricity
One data channel (i.e. first accesses passage) of brain, accesses the one of multi-path pressure meter by the valve of sphygomanometer
Individual passage (i.e. second accesses passage).Computer can know the first access passage that sphygomanometer accesses, but cannot
Directly know the second access passage that sphygomanometer accesses.Now, host computer can be accessed by sphygomanometer
One accesses passage sends one to sphygomanometer and triggers signal, and this triggering signal can be that order inflated by an air pump.
Sphygomanometer can generate a response signal under the triggering of this triggering signal.Such as, order is inflated at this air pump
Effect under, sphygomanometer has a pressure output value.Sphygomanometer valve is connected with multi-path pressure meter valve,
Computer controls after sphygomanometer inflates, owing to the pressure in pipe changes, and pressure that blood pressure measuring arrives and manifold
The pressure that road piezometer measures changes the most therewith, thus the exportable output signal of multi-path pressure meter.
In this step, accessing the described first sphygomanometer accessing passage can be 1, it is also possible to be multiple.
When multiple sphygomanometers are respectively connected to the first different access passages, passage can be accessed to one first every time
Send one and trigger signal, it is also possible to once first access passage to each and send triggering signal respectively, wherein,
The quantity triggering signal sent should be equal to the quantity of the sphygomanometer accessing the first access passage.At the second
In the case of, the sound that each sphygomanometer should be made to export to each first triggering signal accessing passage transmission
Induction signal can be distinguished each other.In order to meet above-mentioned condition, each can be triggered touching of signal
The difference sending out parameter is set greater than or is equal to default parameter threshold, and wherein, described trigger parameter is and institute
State the parameter that the signal intensity of response signal is associated.Such as, when trigger signal be air pump inflate order time,
Each air pump can be set and inflate parameter corresponding to the amount of inflating in order, make in described parameter arbitrarily both difference
Value is more than or equal to the parameter threshold preset.
S2, compares each output signal of described response signal with described Multichannel device respectively, obtains
Take the output signal matched with described response signal；
In this step, the output signal of each passage output of multi-path pressure meter can be obtained, and will be each
Individual output signal compares with response signal respectively.Time relatively, response signal can be obtained and export with each
The signal intensity of signal, and respectively by strong with the signal of each output signal for the signal intensity of described response signal
Degree compares.Being still that signal inflated by air pump to trigger signal, response signal and output signal are pressure output
As a example by value, can by the pressure output value of sphygomanometer respectively with the pressure output value of multi-path pressure each passage of meter
Compare.
Owing to device has certain error, a signal strength threshold can be set, if the letter of described output signal
The difference of number intensity and the signal intensity of described response signal, can be by described output letter less than this signal strength threshold
Number it is identified as the output signal matched with described response signal.
In one embodiment, when the sphygomanometer of a certain passage is mated, the blood pressure of another passage in respect of
Calibration operation may be carried out, above-mentioned matching operation impact may be produced.In order to make matching result more
Accurately, it is also possible to obtain further and send institute in the preset time period triggered after signal to described measurement device
State the variable quantity of response signal and the signal intensity of each output signal, respectively by the signal of described response signal
The variable quantity of intensity compares with the variable quantity of the signal intensity of each output signal.If described output signal
The difference of signal intensity of signal intensity and described response signal less than the signal strength threshold preset and described
The signal intensity of the variable quantity of the signal intensity of described output signal and described response signal in preset time period
Described output signal, less than the variable quantity threshold value preset, is identified as and described response signal by the difference of variable quantity
The output signal matched.In this way, the signal shadow to this channel signal of other passages is alleviated
Ring, improve the accuracy of coupling.
With an example, above-mentioned matching process is described below, but technical scheme is not limited to following
Example.Sphygomanometer valve inserts multi-path pressure meter a certain valve passage, and the USB port of sphygomanometer inserts electricity
After brain, can start to start identification and insert passage: in 0 to 10S, computer can control sphygomanometer air pump and inflate, so
The rear sphygomanometer that compares is uploaded to the pressure data of computer by USB port and multi-path pressure meter passes through communication interface
The pressure data of all passages uploaded, when 10S, if the force value uploaded of sphygomanometer and multichannel pressure
Power meter a certain channel pressure meter is close to (difference is less than threshold value), and pressure variety and this passage in 10S
Unanimously, then can mate.
S3, is that described measurement device is in described manifold by channel recognition corresponding for the described output signal matched
The second access passage on duct device.
Such as, when the pressure output value of sphygomanometer is 130mmHg, the pressure of multi-path pressure each passage of meter
Output valve is respectively 0,5mmHg and 128mmHg time, can determine that the third channel of multi-path pressure meter is
The passage of coupling, thus leading to that this third channel can be identified as this sphygomanometer accesses on multi-path pressure meter
Road.
The most such as, when the pressure output value of multiple sphygomanometers accessed be respectively 20mmHg, 80mmHg and
130mmHg, the pressure output value of multi-path pressure each passage of meter is respectively 18mmHg, 128mmHg
During with 81mmHg, can be that first sphygomanometer is at multichannel by the first of multi-path pressure meter channel recognition
The passage accessed on piezometer, is that second sphygomanometer is many by the 3rd of multi-path pressure meter the channel recognition
The passage accessed on channel pressure meter, is the 3rd sphygomanometer by second channel recognition of multi-path pressure meter
The passage accessed on multi-path pressure meter.
In one embodiment, after identifying the second access passage of correspondence, it is also possible to by corresponding first
Access passage and the second numbering accessing passage is associated.So, can during follow-up use direct basis
This incidence relation searches corresponding access passage, improves efficiency.
In the above-described embodiments, sphygomanometer inserts the manometric passage of multi-channel high-accuracy, and host computer can be certainly
Dynamic identification, without the manual passway selecting and inserting；Host computer can automatically recognize sphygomanometer or
The passway that blood pressure module communicates with host computer；Host computer sends the air pump to the sphygomanometer passage inserted and inflates
Instruction, by the pressure data of all passages of comparison automatically judge passage that sphygomanometer valve inserts and with
The passage of host computer communication.Therefore, host computer interface need not any manual operation and channel selecting
Menu；Valve is inserted into manometric passage and need not artificially select, and can be inserted into any passage without volume
Outer manual operation.
In sum, the present invention has following key and a significant advantage:
(1) simple to operate: automatically to identify that the scheme accessing passage of Multichannel device only has two step operations: survey
Any passage and the measurement apparatus of amount device access Multichannel device are connected to computer.And conventional scheme have with
Lower four steps: measurement apparatus accesses any passage of Multichannel device, host computer manual selection valve inserts
Passage, Multichannel device communication port are connected to computer, the manual selection of host computer and measurement apparatus one_to_one corresponding
Communication port；
(2) efficiency of channel recognition is greatly improved: selected to become automatically identifying from original craft, calibration effect
Rate can be greatly improved；
(3) automatically identify that concordance is good: being analyzed by pressure data, upper function effectively identifies access
Passage, concordance is good；
(4) interfering between each passage is reduced: reduce manual selection heel row except due to the wrong passage of choosing
And cause calibration by mistake.
(5) once can recognize that multiple access passage, further increase recognition efficiency.
Correspondingly, the present invention also provides for the access lane identification system of a kind of Multichannel device, as shown in Figure 4,
Comprise the steps that
Signal transmitting and receiving module 10, triggers signal for sending to the measurement device accessing the first access passage, connects
Receive and described in described measurement response device, trigger the response signal that signal generates, and receive the described measurement of connection simultaneously
The output signal of each passage of the Multichannel device of device；
When using multi-path pressure meter that sphygomanometer is calibrated, computer can be accessed in one end of sphygomanometer
One data channel (i.e. first accesses passage), the other end accesses a passage (i.e. the of multi-path pressure meter
Two access passage).Computer can know the first access passage that sphygomanometer accesses, but cannot directly know blood pressure
The second access passage that meter accesses.Now, host computer can by sphygomanometer access first access passage to
Sphygomanometer sends one and triggers signal, and this triggering signal can be that order inflated by an air pump.Sphygomanometer is at this
Trigger and a response signal under the triggering of signal, can be generated.Such as, this air pump inflate order effect under,
Sphygomanometer has a pressure output value.Meanwhile, the second access passage that sphygomanometer accesses also can be according to this pressure
Power output valve produces a corresponding pressure output value (i.e. output signal).
Accessing the described first sphygomanometer accessing passage can be 1, it is also possible to be multiple.When multiple blood pressures
When meter is respectively connected to the first different access passages, passage transmission one can be accessed to one first every time touch
Signal, it is also possible to once send triggering signal, wherein, touching of transmission respectively to each the first access passage
The quantity signaled should be equal to the quantity of the sphygomanometer accessing the first access passage.In the latter case,
To each first access that passage sends trigger signal should make response signal that each sphygomanometer exports that
Can be distinguished between this.In order to meet above-mentioned condition, each can be triggered the trigger parameter of signal
Difference is set greater than or equal to the parameter threshold preset, and wherein, described trigger parameter is and described response letter
Number the parameter that is associated of signal intensity.Such as, when trigger signal be air pump inflate order time, can arrange each
Parameter corresponding to the amount of inflating in order inflated by individual air pump, make in described parameter arbitrarily both difference more than or
Equal to the parameter threshold preset.
Comparison module 20, for respectively by each output signal of described response signal Yu described Multichannel device
Compare, obtain the output signal matched with described response signal；
The output signal of each passage output of multi-path pressure meter can be obtained, and each output signal is divided
Do not compare with response signal.Time relatively, response signal can be obtained strong with the signal of each output signal
Degree, and respectively the described signal intensity of response signal is compared with the signal intensity of each output signal.
It is still that signal inflated by air pump to trigger signal, as a example by response signal and output signal are pressure output value, can be by
The pressure output value of sphygomanometer pressure output value with multi-path pressure each passage of meter respectively compares.
Owing to device has certain error, a signal strength threshold can be set, if the letter of described output signal
The difference of number intensity and the signal intensity of described response signal, can be by described output letter less than this signal strength threshold
Number it is identified as the output signal matched with described response signal.
Identification module 30, being used for channel recognition corresponding for the described output signal matched is described measuring device
The part the second access passage on described Multichannel device.
Such as, when the pressure output value of sphygomanometer is 130mmHg, the pressure of multi-path pressure each passage of meter
Output valve is respectively 0,5mmHg and 128mmHg time, can determine that the third channel of multi-path pressure meter is
The passage of coupling, thus leading to that this third channel can be identified as this sphygomanometer accesses on multi-path pressure meter
Road.
The most such as, when the pressure output value of multiple sphygomanometers accessed be respectively 20mmHg, 80mmHg and
130mmHg, the pressure output value of multi-path pressure each passage of meter is respectively 18mmHg, 128mmHg
During with 81mmHg, can be that first sphygomanometer is at multichannel by the first of multi-path pressure meter channel recognition
The passage accessed on piezometer, is that second sphygomanometer is many by the 3rd of multi-path pressure meter the channel recognition
The passage accessed on channel pressure meter, is the 3rd sphygomanometer by second channel recognition of multi-path pressure meter
The passage accessed on multi-path pressure meter.
In one embodiment, after identifying the second access passage of correspondence, it is also possible to by corresponding first
Access passage and the second numbering accessing passage is associated.So, can during follow-up use direct basis
This incidence relation searches corresponding access passage, improves efficiency.
In the above-described embodiments, sphygomanometer inserts the manometric passage of multi-channel high-accuracy, and host computer can be certainly
Dynamic identification, without the manual passway selecting and inserting；Host computer can automatically recognize sphygomanometer or
The passway that blood pressure module communicates with host computer；Host computer sends the air pump to the sphygomanometer passage inserted and inflates
Instruction, by the pressure data of all passages of comparison automatically judge passage that sphygomanometer valve inserts and with
The passage of host computer communication.Therefore, host computer interface need not any manual operation and channel selecting
Menu；Valve is inserted into manometric passage and need not artificially select, and can be inserted into any passage without volume
Outer manual operation.
In sum, the present invention has following key and a significant advantage:
(1) simple to operate: automatically to identify that the scheme accessing passage of Multichannel device only has two step operations: survey
Any passage and the measurement apparatus of amount device access Multichannel device are connected to computer.And conventional scheme have with
Lower four steps: measurement apparatus accesses any passage of Multichannel device, host computer manual selection valve inserts
Passage, Multichannel device communication port are connected to computer, the manual selection of host computer and measurement apparatus one_to_one corresponding
Communication port；
(2) efficiency of channel recognition is greatly improved: selected to become automatically identifying from original craft, calibration effect
Rate can be greatly improved；
(3) automatically identify that concordance is good: being analyzed by pressure data, upper function effectively identifies access
Passage, concordance is good；
(4) interfering between each passage is reduced: reduce manual selection heel row except due to the wrong passage of choosing
And cause calibration by mistake.
(5) once can recognize that multiple access passage, further increase recognition efficiency.
The access of the Multichannel device accessing lane identification system and the present invention of the Multichannel device of the present invention is led to
Road recognition methods one_to_one corresponding, the embodiment in the access channel recognition method of above-mentioned Multichannel device illustrates
Technical characteristic and beneficial effect thereof all be applicable to Multichannel device access lane identification system embodiment,
Hereby give notice that.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right
The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills
There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But can not therefore be construed as limiting the scope of the patent.It should be pointed out that, for this area
For those of ordinary skill, without departing from the inventive concept of the premise, it is also possible to make some deformation and change
Entering, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended power
Profit requires to be as the criterion.
Claims (10)
1. the access channel recognition method of a Multichannel device, it is characterised in that comprise the following steps:
Send to the measurement device accessing the first access passage and trigger signal, receive described measurement response device institute
State and trigger the response signal that signal generates, and receive Multichannel device each connecting described measurement device simultaneously
The output signal of individual passage；
Respectively each output signal of described response signal with described Multichannel device is compared, obtain with
The output signal that described response signal matches；
It is that described measurement device fills at described multichannel by channel recognition corresponding for the described output signal matched
The the second access passage put.
The access channel recognition method of Multichannel device the most according to claim 1, it is characterised in that
After identifying the second access passage, further comprising the steps of:
The channel number accessing passage by described first is associated with the described second channel number accessing passage.
The access channel recognition method of Multichannel device the most according to claim 1, it is characterised in that
Respectively the step that each output signal of described response signal with described Multichannel device compares is included:
Obtain the signal intensity of described response signal and each output signal；
Respectively the described signal intensity of response signal is compared with the signal intensity of each output signal.
The access channel recognition method of Multichannel device the most according to claim 3, it is characterised in that
The step obtaining the output signal matched with described response signal includes:
If the signal intensity of described output signal is less than, with the difference of the signal intensity of described response signal, the letter preset
Number intensity threshold, is identified as the output signal matched with described response signal by described output signal.
The access channel recognition method of Multichannel device the most according to claim 3, it is characterised in that
Respectively the step that each output signal of described response signal with described Multichannel device compares also is wrapped
Include:
In obtaining the preset time period after described measurement device sends triggering signal, described response signal is with each
The variable quantity of the signal intensity of individual output signal；
Respectively by the change of the variable quantity of the signal intensity of described response signal Yu the signal intensity of each output signal
Change amount compares.
The access channel recognition method of Multichannel device the most according to claim 5, it is characterised in that
The step obtaining the output signal matched with described response signal includes:
If the signal intensity of described output signal is less than, with the difference of the signal intensity of described response signal, the letter preset
The variable quantity of the signal intensity of described output signal and described sound in number intensity threshold, and described preset time period
Described output signal, less than the variable quantity threshold value preset, is known by the difference of the variable quantity of the signal intensity of induction signal
The output signal that Wei not match with described response signal.
The access channel recognition method of Multichannel device the most according to claim 1, it is characterised in that
Described Multichannel device is multi-path pressure meter, and described measurement device is sphygomanometer.
The access channel recognition method of Multichannel device the most according to claim 3, it is characterised in that
Include to the first step measuring device transmission triggering signal accessing passage:
Generate multiple triggering signal；Wherein, the quantity of described triggering signal is logical equal to accessing described first access
The quantity measuring device in road, and the difference of the trigger parameter of each triggering signal is more than or equal to the parameter preset
Threshold value, described trigger parameter is associated with the signal intensity of described response signal；
Each triggering signal is separately sent to access the measurement device of each the first access passage.
9. the access lane identification system of a Multichannel device, it is characterised in that including:
Signal transmitting and receiving module, triggers signal for sending to the measurement device accessing the first access passage, receives
Trigger the response signal that signal generates described in described measurement response device, and receive the described measuring device of connection simultaneously
The output signal of each passage of the Multichannel device of part；
Comparison module, for entering each output signal of described response signal with described Multichannel device respectively
Row compares, and obtains the output signal matched with described response signal；
Identification module, being used for channel recognition corresponding for the described output signal matched is described measurement device
The second access passage on described Multichannel device.
The access lane identification system of Multichannel device the most according to claim 9, it is characterised in that
Also include:
Relating module, accesses the logical of passage for accessing the channel number of passage by described first with described second
Road numbering is associated.
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