CN105812493A - Human body function monitoring method - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
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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
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/369—Electroencephalography [EEG]
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Abstract
The invention relates to a human body function monitoring method.The method comprises the steps that firstly, a passenger ship captain function monitoring device with an emergency mode is provided, wherein the monitoring device comprises a brain wave parameter extraction device, an emergency wireless communication device, a communication turning-on device and a Freescale MC9S12 chip, the brain wave parameter extraction device is used for extracting brain wave parameters of a captain in a passenger ship cockpit, the Freescale MC9S12 chip and the brain wave parameter extraction device are connected, whether the communication turning-on device is controlled to turning on the emergency wireless communication device or not is determined according to the extraction result of the brain wave parameter extraction device; secondly, the monitoring device is used.
Description
The present invention is application number is 201610002423.6, the applying date be January 2, denomination of invention in 2016 is the divisional application of the patent of " a kind of function of human body monitoring method ".
Technical field
The present invention relates to brain wave detection field, particularly relate to a kind of function of human body monitoring method.
Background technology
In the prior art, the passenger compartment at captain place driving cabin and passenger place is generally by driving cabin locking position, the driving condition passenger of captain lacks passage at all and goes to learn, passenger one aboard, and life substantially consigns to the captain in driving cabin and other human pilots.
But actually, the physiological status of captain is extremely important, on the one hand, in fact it could happen that captain's spirit hypertonicity or ill situation, if not notifying that other staff carry out rescuing and replacing driving, easily cause the economic loss of casualties, on the other hand, it is also possible to the situation that captain's dangerous driving is even hijacked a ship occur, at this moment generally the physiological parameter of captain there will be some omens, if able to these omens of prediction captain, just can avert catastrophe to a certain extent.
As can be seen here, prior art exists techniques below problem: (1) lacks effective captain's physiological status detection equipment；(2) effective physiological parameter early warning mechanism is lacked；(3) the urgency communication passage that can promptly trigger and help passenger compartment personnel and PERCOM peripheral communication at hour of danger is lacked.
Therefore, the present invention proposes a kind of passenger steamer captain's body function monitor device with emergency mode, ECG signal and the eeg signal of the captain of steering position can be understood in time, once exception occurs, urgency communication mechanism can be started to help the passenger of passenger compartment to seek external assistance, occurring thus being effectively prevented from overwater accident, improving the safety that passenger boat travels.
Summary of the invention
In order to solve the technical problem that prior art exists, the invention provides a kind of passenger steamer captain's body function monitor device with emergency mode, utilize targetedly, can be used for the electrocardiogram monitoring device of the cramped construction of passenger steamer driving cabin and electroencephalogram monitoring device realizes the ECG information of the passenger steamer captain to steering position and the extraction of electroencephalogram information respectively, and alarm mechanism is triggered when exception, more crucially, adopt when exception and push-and-pull panel mode can open passenger's urgency traffic passage, to set up contacting of passenger boat and water life-saving center by passenger.
According to an aspect of the present invention, provide a kind of passenger steamer captain's body function monitor device with emergency mode, described supervising device includes brain wave parameter extraction equipment, emergency wireless communication equipment, communication unlatching equipment and Freescale MC9S12 chip, described brain wave parameter extraction equipment is for extracting the brain wave parameter of the captain in passenger steamer driving cabin, described Freescale MC9S12 chip is connected with described brain wave parameter extraction equipment, extraction result according to described brain wave parameter extraction equipment determines whether to control described communication unlatching equipment to start described emergency wireless communication equipment.
More specifically, in described passenger steamer captain's body function monitor device with emergency mode, including: detecting electrode, it is arranged on captain's head, the voltage variety that the neuron activity for detecting brain arrives cerebral cortex by ionic conduction and formed；Difference preamplifier, is connected with described detecting electrode, for described voltage variety is amplified；Low pass filter, is connected with described difference preamplifier, for the voltage variety after amplification is carried out 100Hz low-pass filtering, to export the first filtering signal；Two-stage power frequency notch filter, is connected with described low pass filter, for described first filtering signal is carried out two-stage notch filter process, to export notched signal；High pass filter, is connected with described two-stage power frequency notch filter, for described notched signal is carried out 0.1Hz high-pass filtering, to export the second filtering signal；Level adjustment circuit, is connected with described high pass filter, and described second filtering signal is carried out level adjustment process, thinks that subsequent A/D conversion is prepared；Analog to digital conversion circuit, is connected with described level adjustment circuit, and the second filtering signal after level adjustment processes carries out the analog digital conversion of 8, to obtain the brain wave digital signal of captain；Signal collecting device, including multiple medical electrode and multiple movement locus sensor, the plurality of medical electrode are separately positioned on multiple fixed positions at captain's body surface place, for extracting multiple voltages that captain's cardioelectric field produces respectively in multiple fixed positions at body surface place, each movement locus sensor is close to medical electrode and places, for extracting the drift electrocardio voltage signal that corresponding position captain produces because of breathing and human motion；Movement locus abatement apparatus, it is not connected with the plurality of medical electrode and the plurality of movement locus sensor, the drift electrocardio voltage signal summation that each voltage produced by each medical electrode produces with corresponding movement locus sensor, to obtain the target voltage of correspondence；Lead circuit, is connected with described movement locus abatement apparatus, is used for receiving multiple target voltage, calculates electrocardio voltage difference based on the plurality of target voltage and exports；Signal amplification circuit, is connected with the described circuit that leads, and is used for receiving described electrocardio voltage difference and described electrocardio voltage difference being amplified；Bandwidth-limited circuit, is connected with described signal amplification circuit, for the noise contribution in the electrocardio voltage difference after filtering amplification to obtain filtered electrical pressure reduction；Second analog to digital conversion circuit, is connected with described bandwidth-limited circuit, for filtered electrical pressure reduction is carried out analog digital conversion, to obtain digitized voltage difference；Electrocardiogram parameters extracts circuit, is connected with described second analog-digital converter, extracts sinus rate and the QT interval of captain based on described digitized voltage difference；Emergency wireless communication equipment, is positioned at passenger steamer bedroom wall, for the call-information of reception staff, and call-information is sent to by wireless communication link the server of the operation management center of far-end；Can plug-type panel, it is connected with Freescale MC9S12 chip, it is embedded on passenger steamer bedroom wall, for when receiving normal state signal, automatically the dead ahead of described emergency wireless communication equipment it is pushed to cover described emergency wireless communication equipment, also when receiving abnormality signal, automatically pull open and retract to the right side of described emergency wireless communication equipment from the dead ahead of described emergency wireless communication equipment；Communication unlatching equipment, it is connected respectively with Freescale MC9S12 chip and described emergency wireless communication equipment, for when receiving abnormality signal, starting described emergency wireless communication equipment, when receiving normal state signal, close described emergency wireless communication equipment；Independently-powered equipment, with described emergency wireless communication equipment, described plug-type panel and described communication can open equipment and be connected respectively, be only described emergency wireless communication equipment, described plug-type panel and the described unlatching equipment that communicates can provide supply of electric power；Freescale MC9S12 chip, extract circuit with analog-digital conversion circuit as described and described electrocardiogram parameters to be connected respectively, for receiving brain wave digital signal respectively, sinus rate and QT interval, when described brain wave digital signal occurs α ripple and β ripple, export shallow sleep and identify signal, when described brain wave digital signal occurs θ ripple and δ ripple, output deep sleep identification signal, when described sinus rate is outside default sinus rate scope, send sinus rate anomalous identification signal, when described QT interval, is outside default QT interval scope, send QT interval anomalous identification signal；Wherein, described two-stage power frequency notch filter adopts bandpass filtering to offset mode and designs, and for offsetting the power frequency component in described first filtering signal, described power frequency component is 50Hz frequency component；When Freescale MC9S12 chip sends shallow sleep identification signal, deep sleep identification signal, sinus rate anomalous identification signal or QT interval anomalous identification signal, Freescale MC9S12 chip is simultaneously emitted by abnormality signal, otherwise, Freescale MC9S12 chip is simultaneously emitted by normal state signal.
More specifically, in described passenger steamer captain's body function monitor device with emergency mode: described wireless communication link is satellite communication link.
More specifically, in described passenger steamer captain's body function monitor device with emergency mode: described wireless communication link is 3G wireless communication link.
More specifically, in described passenger steamer captain's body function monitor device with emergency mode: described wireless communication link is 4G wireless communication link.
More specifically, in described passenger steamer captain's body function monitor device with emergency mode: described electrocardio voltage difference includes multiple voltage difference.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of the first embodiment of passenger steamer captain's body function monitor device with emergency mode of the present invention.
Accompanying drawing labelling: 1 brain wave parameter extraction equipment；2 emergency wireless communication equipments；3 communication unlatching equipment；4 Freescale MC9S12 chips
Detailed description of the invention
Below with reference to accompanying drawings the embodiment of passenger steamer captain's body function monitor device with emergency mode of the present invention is described in detail.
Modern steamer refers to the ship promoted with mechanical engine, multiplex iron and steel manufacture.Original steamer is to trample wooden wheel with manpower to advance, and modern age, steamer was with the steam driven vessel of the outside paddle wheel wheel oar of Steam Actuation, the modern multiplex turbogenerator of steamer.
There is passenger traffic, shipping, tourism and other purposes in the purposes of steamer, for the steamer of passenger traffic, i.e. and passenger steamer, also known as passenger boat, it is used for transporting passenger, also ships a small amount of goods.Based on carrying, fortune of holding concurrently partial cargo is combination vessel；Based on loading, what hold concurrently a small amount of passenger of fortune is goods passenger steamer.According to SOLAS, boats and ships more than all carrying 12 people are passenger boat, regardless of whether be loaded with goods simultaneously.
Special environment due to water transportation, and passenger steamer generally carries more passenger, the detection of passenger steamer is extremely important, but, at present the detection of passenger steamer is mainly appeared on and passenger steamer object is detected, the state-detection of passenger steamer human pilot is considerably less, also lack the corresponding mechanism that can carry out urgency traffic when exception being detected simultaneously.
For this, the present invention has built a kind of passenger steamer captain's body function monitor device with emergency mode, adopt high-precision electrocardiogram monitoring device and brain wave monitoring device that pulse and the brain wave parameter of captain are carried out detection in time and reported to the police, and when recognizing captain's abnormal state, in time by urgency traffic equipment can be started by plug-type panel, thus provide the chance of quickly emergency escape for passenger.
Fig. 1 is the block diagram of the first embodiment of passenger steamer captain's body function monitor device with emergency mode of the present invention, described supervising device includes brain wave parameter extraction equipment, emergency wireless communication equipment, communication unlatching equipment and Freescale MC9S12 chip, described brain wave parameter extraction equipment is for extracting the brain wave parameter of the captain in passenger steamer driving cabin, described Freescale MC9S12 chip is connected with described brain wave parameter extraction equipment, extraction result according to described brain wave parameter extraction equipment determines whether to control described communication unlatching equipment to start described emergency wireless communication equipment.
Then, continue the second embodiment of passenger steamer captain's body function monitor device with emergency mode of the present invention is further detailed.
Described supervising device includes: detecting electrode, is arranged on captain's head, the voltage variety that the neuron activity for detecting brain arrives cerebral cortex by ionic conduction and formed；Difference preamplifier, is connected with described detecting electrode, for described voltage variety is amplified；Low pass filter, is connected with described difference preamplifier, for the voltage variety after amplification is carried out 100Hz low-pass filtering, to export the first filtering signal；Two-stage power frequency notch filter, is connected with described low pass filter, for described first filtering signal is carried out two-stage notch filter process, to export notched signal；High pass filter, is connected with described two-stage power frequency notch filter, for described notched signal is carried out 0.1Hz high-pass filtering, to export the second filtering signal.
Described supervising device includes: level adjustment circuit, is connected with described high pass filter, and described second filtering signal is carried out level adjustment process, thinks that subsequent A/D conversion is prepared；Analog to digital conversion circuit, is connected with described level adjustment circuit, and the second filtering signal after level adjustment processes carries out the analog digital conversion of 8, to obtain the brain wave digital signal of captain；Signal collecting device, including multiple medical electrode and multiple movement locus sensor, the plurality of medical electrode are separately positioned on multiple fixed positions at captain's body surface place, for extracting multiple voltages that captain's cardioelectric field produces respectively in multiple fixed positions at body surface place, each movement locus sensor is close to medical electrode and places, for extracting the drift electrocardio voltage signal that corresponding position captain produces because of breathing and human motion.
Described supervising device includes: movement locus abatement apparatus, it is not connected with the plurality of medical electrode and the plurality of movement locus sensor, the drift electrocardio voltage signal summation that each voltage produced by each medical electrode produces with corresponding movement locus sensor, to obtain the target voltage of correspondence；Lead circuit, is connected with described movement locus abatement apparatus, is used for receiving multiple target voltage, calculates electrocardio voltage difference based on the plurality of target voltage and exports；Signal amplification circuit, is connected with the described circuit that leads, and is used for receiving described electrocardio voltage difference and described electrocardio voltage difference being amplified；Bandwidth-limited circuit, is connected with described signal amplification circuit, for the noise contribution in the electrocardio voltage difference after filtering amplification to obtain filtered electrical pressure reduction.
Described supervising device includes: the second analog to digital conversion circuit, is connected with described bandwidth-limited circuit, for filtered electrical pressure reduction is carried out analog digital conversion, to obtain digitized voltage difference；Electrocardiogram parameters extracts circuit, is connected with described second analog-digital converter, extracts sinus rate and the QT interval of captain based on described digitized voltage difference；Emergency wireless communication equipment, is positioned at passenger steamer bedroom wall, for the call-information of reception staff, and call-information is sent to by wireless communication link the server of the operation management center of far-end.
Described supervising device includes: can plug-type panel, it is connected with Freescale MC9S12 chip, it is embedded on passenger steamer bedroom wall, for when receiving normal state signal, automatically the dead ahead of described emergency wireless communication equipment it is pushed to cover described emergency wireless communication equipment, also when receiving abnormality signal, automatically pull open and retract to the right side of described emergency wireless communication equipment from the dead ahead of described emergency wireless communication equipment；Communication unlatching equipment, it is connected respectively with Freescale MC9S12 chip and described emergency wireless communication equipment, for when receiving abnormality signal, starting described emergency wireless communication equipment, when receiving normal state signal, close described emergency wireless communication equipment.
Described supervising device includes: independently-powered equipment, with described emergency wireless communication equipment, described plug-type panel and described communication can open equipment and be connected respectively, be only described emergency wireless communication equipment, described plug-type panel and the described unlatching equipment that communicates can provide supply of electric power.
Described supervising device includes: Freescale MC9S12 chip, extract circuit with analog-digital conversion circuit as described and described electrocardiogram parameters to be connected respectively, for receiving brain wave digital signal respectively, sinus rate and QT interval, when described brain wave digital signal occurs α ripple and β ripple, export shallow sleep and identify signal, when described brain wave digital signal occurs θ ripple and δ ripple, output deep sleep identification signal, when described sinus rate is outside default sinus rate scope, send sinus rate anomalous identification signal, when described QT interval, is outside default QT interval scope, send QT interval anomalous identification signal.
Wherein, described two-stage power frequency notch filter adopts bandpass filtering to offset mode and designs, and for offsetting the power frequency component in described first filtering signal, described power frequency component is 50Hz frequency component；When Freescale MC9S12 chip sends shallow sleep identification signal, deep sleep identification signal, sinus rate anomalous identification signal or QT interval anomalous identification signal, Freescale MC9S12 chip is simultaneously emitted by abnormality signal, otherwise, Freescale MC9S12 chip is simultaneously emitted by normal state signal.
Alternatively, in described supervising device: described wireless communication link is satellite communication link；Described wireless communication link is 3G wireless communication link；Described wireless communication link is 4G wireless communication link；And described electrocardio voltage difference can include multiple voltage difference.
It addition, analog-digital converter and A/D converter, or it is called for short ADC, it is common that refer to that analog-signal transitions is the electronic component of digital signal by one.Common analog-digital converter is the digital signal that an input voltage signal is converted to an output.Owing to digital signal itself does not have practical significance, it is merely representative of a relative size.Therefore any one analog-digital converter is required for one with reference to analog quantity as the standard changed, relatively common reference standard is maximum convertible signal magnitude.The digital quantity exported then represents the input signal size relative to reference signal.
The resolution of analog-digital converter refers to, for the analogue signal in allowed band, it can export the number of discrete digital signal value.These signal values store typically by binary number, and therefore resolution is through commonly using bit as unit, and the number of these centrifugal pumps is the power exponent of 2.Such as, analogue signal can be encoded into 256 different centrifugal pumps (because 2^8=256) by one analog-digital converter with 8 bit resolutions, from 0 to 255 (i.e. signless integers) or from-128 to 127 (i.e. signed integers), any as using, then depend on concrete application.
Adopt passenger steamer captain's body function monitor device with emergency mode of the present invention, for prior art lacking passenger steamer captain's physiological status detection equipment and lacking the technical problem of passenger's urgency traffic equipment, adopt high-precision electrocardiogram monitoring device and brain wave monitoring device that electrocardiogram parameters and the brain wave parameter of passenger steamer captain are carried out detection in time and reported to the police, introduce physiological parameter early warning mechanism and urgency traffic mechanism, personnel in passenger compartment are helped to learn passenger steamer captain's abnormality in time and contact operation centre waterborne further, it is to avoid the situation generation that passenger boat is out of control.
Although it is understood that the present invention discloses as above with preferred embodiment, but above-described embodiment is not limited to the present invention.For any those of ordinary skill in the art, without departing under technical solution of the present invention ambit, all may utilize the technology contents of the disclosure above and technical solution of the present invention is made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention, to any simple modification made for any of the above embodiments, equivalent variations and modification, all still falls within the scope of technical solution of the present invention protection.
Claims (2)
1. a function of human body monitoring method, the method includes:
1) a kind of passenger steamer captain's body function monitor device with emergency mode is provided, described supervising device includes brain wave parameter extraction equipment, emergency wireless communication equipment, communication unlatching equipment and Freescale MC9S12 chip, described brain wave parameter extraction equipment is for extracting the brain wave parameter of the captain in passenger steamer driving cabin, described Freescale MC9S12 chip is connected with described brain wave parameter extraction equipment, determines whether to control described communication unlatching equipment to start described emergency wireless communication equipment according to the extraction result of described brain wave parameter extraction equipment；
2) described supervising device is used.
2. the method for claim 1, it is characterised in that described supervising device includes:
Detecting electrode, is arranged on captain's head, the voltage variety that the neuron activity for detecting brain arrives cerebral cortex by ionic conduction and formed；
Difference preamplifier, is connected with described detecting electrode, for described voltage variety is amplified；
Low pass filter, is connected with described difference preamplifier, for the voltage variety after amplification is carried out 100Hz low-pass filtering, to export the first filtering signal；
Two-stage power frequency notch filter, is connected with described low pass filter, for described first filtering signal is carried out two-stage notch filter process, to export notched signal；
High pass filter, is connected with described two-stage power frequency notch filter, for described notched signal is carried out 0.1Hz high-pass filtering, to export the second filtering signal；
Level adjustment circuit, is connected with described high pass filter, and described second filtering signal is carried out level adjustment process, thinks that subsequent A/D conversion is prepared；
Analog to digital conversion circuit, is connected with described level adjustment circuit, and the second filtering signal after level adjustment processes carries out the analog digital conversion of 8, to obtain the brain wave digital signal of captain；
Signal collecting device, including multiple medical electrode and multiple movement locus sensor, the plurality of medical electrode are separately positioned on multiple fixed positions at captain's body surface place, for extracting multiple voltages that captain's cardioelectric field produces respectively in multiple fixed positions at body surface place, each movement locus sensor is close to medical electrode and places, for extracting the drift electrocardio voltage signal that corresponding position captain produces because of breathing and human motion；
Movement locus abatement apparatus, it is not connected with the plurality of medical electrode and the plurality of movement locus sensor, the drift electrocardio voltage signal summation that each voltage produced by each medical electrode produces with corresponding movement locus sensor, to obtain the target voltage of correspondence；
Lead circuit, is connected with described movement locus abatement apparatus, is used for receiving multiple target voltage, calculates electrocardio voltage difference based on the plurality of target voltage and exports；
Signal amplification circuit, is connected with the described circuit that leads, and is used for receiving described electrocardio voltage difference and described electrocardio voltage difference being amplified；
Bandwidth-limited circuit, is connected with described signal amplification circuit, for the noise contribution in the electrocardio voltage difference after filtering amplification to obtain filtered electrical pressure reduction；
Second analog to digital conversion circuit, is connected with described bandwidth-limited circuit, for filtered electrical pressure reduction is carried out analog digital conversion, to obtain digitized voltage difference；
Electrocardiogram parameters extracts circuit, is connected with described second analog-digital converter, extracts sinus rate and the QT interval of captain based on described digitized voltage difference；
Emergency wireless communication equipment, is positioned at passenger steamer bedroom wall, for the call-information of reception staff, and call-information is sent to by wireless communication link the server of the operation management center of far-end；
Can plug-type panel, it is connected with Freescale MC9S12 chip, it is embedded on passenger steamer bedroom wall, for when receiving normal state signal, automatically the dead ahead of described emergency wireless communication equipment it is pushed to cover described emergency wireless communication equipment, also when receiving abnormality signal, automatically pull open and retract to the right side of described emergency wireless communication equipment from the dead ahead of described emergency wireless communication equipment；
Communication unlatching equipment, it is connected respectively with Freescale MC9S12 chip and described emergency wireless communication equipment, for when receiving abnormality signal, starting described emergency wireless communication equipment, when receiving normal state signal, close described emergency wireless communication equipment；
Independently-powered equipment, with described emergency wireless communication equipment, described plug-type panel and described communication can open equipment and be connected respectively, be only described emergency wireless communication equipment, described plug-type panel and the described unlatching equipment that communicates can provide supply of electric power；
Freescale MC9S12 chip, extract circuit with analog-digital conversion circuit as described and described electrocardiogram parameters to be connected respectively, for receiving brain wave digital signal respectively, sinus rate and QT interval, when described brain wave digital signal occurs α ripple and β ripple, export shallow sleep and identify signal, when described brain wave digital signal occurs θ ripple and δ ripple, output deep sleep identification signal, when described sinus rate is outside default sinus rate scope, send sinus rate anomalous identification signal, when described QT interval, is outside default QT interval scope, send QT interval anomalous identification signal；
Wherein, described two-stage power frequency notch filter adopts bandpass filtering to offset mode and designs, and for offsetting the power frequency component in described first filtering signal, described power frequency component is 50Hz frequency component；
Wherein, when Freescale MC9S12 chip sends shallow sleep identification signal, deep sleep identification signal, sinus rate anomalous identification signal or QT interval anomalous identification signal, Freescale MC9S12 chip is simultaneously emitted by abnormality signal, otherwise, Freescale MC9S12 chip is simultaneously emitted by normal state signal；
Described wireless communication link is 4G wireless communication link.
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| CN204833607U (en) * | 2015-08-04 | 2015-12-02 | 深圳榕亨实业集团有限公司 | Monitoring reminding device is driven to motor vehicle based on brain wave discernment |
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| CN103040449A (en) * | 2012-12-24 | 2013-04-17 | 太原铁路局 | Remote early-warning and monitoring system |
| CN104490387A (en) * | 2014-09-17 | 2015-04-08 | 中国科学院上海微系统与信息技术研究所 | Wireless, portable and wearable electrocardiogram detector capable of restraining motion interference |
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Application publication date: 20160727 |
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