CN113109372A - Checking channel with composite checking function and checking method thereof - Google Patents
Checking channel with composite checking function and checking method thereof Download PDFInfo
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- CN113109372A CN113109372A CN202110449304.6A CN202110449304A CN113109372A CN 113109372 A CN113109372 A CN 113109372A CN 202110449304 A CN202110449304 A CN 202110449304A CN 113109372 A CN113109372 A CN 113109372A
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- 239000002131 composite material Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000007689 inspection Methods 0.000 claims abstract description 78
- 230000005855 radiation Effects 0.000 claims abstract description 60
- 230000007457 establishment of nucleus localization Effects 0.000 claims abstract description 33
- 230000002285 radioactive effect Effects 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 claims description 46
- 230000030648 nucleus localization Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 230000001681 protective effect Effects 0.000 description 22
- 238000009434 installation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/10—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being confined in a container, e.g. in a luggage X-ray scanners
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
- G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
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- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention relates to an inspection channel with a composite inspection function and an inspection method, wherein the inspection channel comprises an X-ray machine, a nuclear radiation detector, a nuclear positioning instrument and a conveying belt, the nuclear radiation detector can carry out nuclear radiation inspection on luggage and personnel, the nuclear positioning instrument can carry out radioactive source nuclear positioning on the luggage and the personnel, and the X-ray machine can carry out X-ray inspection on the luggage on the conveying belt, so that the inspection channel has the composite inspection function. The X-ray machine front side is equipped with preceding shielding curtain, and the rear side is equipped with the back shielding curtain, can play basic shielding effect, has add the third shielding curtain between X-ray machine and nuclear radiation detector, has add the fourth shielding curtain between X-ray machine and the nuclear locator, through adopting double-deck shielding scheme, can reduce nuclear radiation detector and nuclear locator false alarm's probability by a wide margin, under the prerequisite of guaranteeing the inspection effect, has improved the inspection efficiency, and can further shorten the length of examining the passageway.
Description
Technical Field
The invention relates to the technical field of security inspection equipment, in particular to an inspection channel with a composite inspection function and an inspection method thereof.
Background
In the prior art, the types of inspection devices on the security inspection passage are more and more abundant, for example, devices such as an X-ray machine, a nuclear radiation detector, a nuclear positioning instrument (also called a radioactive source positioning instrument) and the like, when the devices are applied to the same inspection passage, various inspection functions can be obtained, but the adverse results brought by the devices are that the inspection passage is long and the occupied space is large, and people often shorten the length of the inspection passage by compressing the distance between adjacent devices and obtain good effects.
When the two checking devices are close to each other, the nuclear radiation detector is found to give a false alarm frequently, and analysis reasons show that although shielding curtains (generally lead curtains) are arranged on the front side and the rear side of the X-ray machine, a small amount of X rays can still be leaked out when the shielding curtains are pushed open by luggage, and the leaked X rays cause the false alarm of the nuclear radiation detector, so that a sufficient distance needs to be arranged between the X-ray machine and the nuclear radiation detector to reduce or avoid the false alarm of the nuclear radiation detector, and the checking channel cannot be further shortened to be improved.
Disclosure of Invention
The invention aims to provide an inspection channel with a composite inspection function and an inspection method thereof, which can further shorten the length of the inspection channel and reduce the occupied space.
The technical scheme provided by the invention is as follows: an inspection channel with a composite inspection function comprises an X-ray machine, a nuclear radiation detector, a nuclear locator and a conveyer belt, wherein the nuclear radiation detector is arranged at the front end of the inspection channel and is used for performing nuclear radiation inspection on luggage and personnel; the nuclear positioning instrument is arranged at the tail end of the inspection passage and is used for carrying out nuclear positioning on the radioactive source on the luggage and the personnel; the X-ray machine and the conveying belt are arranged in the middle of the checking channel, the X-ray machine is arranged above the conveying belt and used for carrying out X-ray checking on luggage on the conveying belt, a front shielding curtain is arranged on the front side of the X-ray machine, a rear shielding curtain is arranged on the rear side of the X-ray machine, a third shielding curtain is further arranged between the X-ray machine and the nuclear radiation detector and used for shielding rays emitted to the nuclear radiation detector when the front shielding curtain is pushed open by the luggage; and a fourth shielding curtain is also arranged between the X-ray machine and the nuclear locator, and is used for shielding rays emitted to the nuclear locator when the rear shielding curtain is pushed open by luggage.
The X-ray machine comprises a protective cover, a first protective cover further extends forwards from the front end of the protective cover, and the third shielding curtain is arranged in the first protective cover; the safety cover rear end still extends backward has the second safety cover, fourth shielding curtain sets up in the second safety cover.
Wherein, first safety cover, second safety cover and the safety cover of X-ray machine are integrated into one piece.
Wherein the distance between the third shielding curtain and the front shielding curtain is at least 60 CM; the distance between the fourth shielding curtain and the rear shielding curtain is at least 60 CM.
The checking channel comprises a left channel and a right channel, and the nuclear radiation detector, the X-ray machine, the conveying belt and the nuclear positioning instrument are arranged between the left channel and the right channel.
The checking channel further comprises a detection device for detecting whether the front shielding curtain, the rear shielding curtain, the third shielding curtain and the fourth shielding curtain are completely closed, and when the front shielding curtain and the third shielding curtain are not completely closed, the nuclear radiation detector stops detecting or does not alarm the shielding detection result; and when the fact that the rear shielding curtain and the fourth shielding curtain are not completely closed is detected, the nuclear positioning instrument stops detecting or the shielding detection result does not give an alarm.
The present invention also provides an inspection method of the above inspection channel with composite inspection function, comprising the steps of: s1: carrying out nuclear radiation inspection on luggage and personnel by using a nuclear radiation detector; s2: the personnel place the luggage on the conveyer belt, utilize the conveyer belt to convey the luggage to the X-ray machine, utilize the X-ray machine to carry on the X-ray inspection to the luggage; s3: the conveying belt is used for continuously conveying the luggage to the end of the conveying belt, and the nuclear positioning instrument is used for carrying out nuclear positioning on the luggage and the personnel by the radioactive source.
In step S1, when the detection device detects that neither the third shielding curtain nor the front shielding curtain is completely closed, the nuclear radiation detector stops detecting or does not alarm the shielding detection result; when the detection device detects that at least one of the third shielding curtain and the front shielding curtain is in a completely closed state, the nuclear radiation detector starts detection again or does not shield the detection result any more.
In step S3, when the detection device detects that neither the fourth shielding curtain nor the rear shielding curtain is completely closed, the nuclear locator stops detecting or does not alarm the shielding detection result; and when the detection device detects that at least one of the fourth shielding curtain and the rear shielding curtain is in a completely closed state, the nuclear positioner starts the detection again or does not shield the detection result any more.
The invention has the beneficial effects that: the checking passage with the composite checking function comprises an X-ray machine, a nuclear radiation detector and a nuclear positioning instrument, wherein the nuclear radiation detector can carry out nuclear radiation checking on the luggage and the personnel, the nuclear positioning instrument can carry out radioactive source nuclear positioning on the luggage and the personnel, and the X-ray machine can carry out X-ray checking on the luggage on the conveying belt, so the checking passage has the composite checking function. The front side of the X-ray machine is provided with a front shielding curtain, the rear side of the X-ray machine is provided with a rear shielding curtain, a basic shielding effect can be achieved, a third shielding curtain is particularly additionally arranged between the X-ray machine and the nuclear radiation detector, and the third shielding curtain is used for shielding rays emitted to the nuclear radiation detector when the front shielding curtain is pushed open by luggage; a fourth shielding curtain is particularly additionally arranged between the X-ray machine and the nuclear locator, and is used for shielding rays emitted to the nuclear locator when the rear shielding curtain is pushed open by luggage; by adopting the double-layer shielding scheme, the false alarm probability of the nuclear radiation detector and the nuclear locator can be greatly reduced, the checking efficiency is improved on the premise of ensuring the checking effect, and the length of the checking channel can be further shortened. In addition, the nuclear positioning instrument can carry out radioactive source nuclear positioning on luggage and personnel, so that the personnel can conveniently check the luggage and the personnel, and the harm to the personnel is reduced.
Drawings
Fig. 1 is a perspective view of an embodiment of a ping channel with a composite ping function according to the present invention;
fig. 2 is a top view of an embodiment of an inspection channel with a composite inspection function according to the present invention;
fig. 3 is an enlarged view of a in fig. 2.
Wherein, 1, an X-ray machine; 11. a front shielding curtain; 12. a rear shielding curtain; 13. a protective cover; 2. a nuclear radiation detector; 3. a nuclear locator; 4. a conveyor belt; 5. a third shielding curtain; 6. a fourth shielding curtain; 7. a first protective cover; 8. a second protective cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 3, the first embodiment of the inspection channel with a composite inspection function of the present invention includes an X-ray machine 1, a nuclear radiation detector 2, a nuclear locator 3, and a conveyor belt 4, where the nuclear radiation detector 2 is disposed at the front end of the inspection channel and is used for performing nuclear radiation inspection on baggage and people; the nuclear positioning instrument 3 is arranged at the tail end of the inspection passage and is used for carrying out nuclear positioning on the radioactive source on the luggage and the personnel; the X-ray machine 1 and the conveying belt 4 are arranged in the middle of the checking channel, the X-ray machine 1 is arranged above the conveying belt 4 and used for carrying out X-ray checking on luggage on the conveying belt 4, a front shielding curtain 11 is arranged on the front side of the X-ray machine 1, a rear shielding curtain 12 is arranged on the rear side of the X-ray machine 1, a third shielding curtain 5 is further arranged between the X-ray machine 1 and the nuclear radiation detector 2, and the third shielding curtain 5 is used for shielding rays emitted to the nuclear radiation detector 2 when the front shielding curtain 11 is pushed open by the luggage; a fourth shielding curtain 6 is further arranged between the X-ray machine 1 and the nuclear locator 3, and the fourth shielding curtain 6 is used for shielding rays emitted to the nuclear locator 3 when the rear shielding curtain 12 is pushed open by luggage.
The checking passage with the composite checking function comprises an X-ray machine 1, a nuclear radiation detector 2 and a nuclear positioning instrument 3, wherein the nuclear radiation detector 2 can carry out nuclear radiation checking on luggage and personnel, the nuclear positioning instrument 3 can carry out radioactive source nuclear positioning on the luggage and the personnel, and the X-ray machine 1 can carry out X-ray checking on the luggage on a conveying belt, so that the checking passage has the composite checking function. The front side of the X-ray machine 1 is provided with a front shielding curtain 11, the rear side of the X-ray machine 1 is provided with a rear shielding curtain 12, a basic shielding effect can be achieved, a third shielding curtain 5 is particularly additionally arranged between the X-ray machine 1 and the nuclear radiation detector 2, and the third shielding curtain 5 is used for shielding rays emitted to the nuclear radiation detector 2 when the front shielding curtain is pushed open by luggage; a fourth shielding curtain 6 is particularly additionally arranged between the X-ray machine 1 and the nuclear locator 4, and the fourth shielding curtain 6 is used for shielding rays emitted to the nuclear locator 4 when the rear shielding curtain 12 is pushed open by luggage; by adopting the double-layer shielding scheme, the false alarm probability of the nuclear radiation detector 2 and the nuclear locator 3 can be greatly reduced, the checking efficiency is improved on the premise of ensuring the checking effect, and the length of the checking channel can be further shortened. In addition, the nuclear positioning instrument 3 can carry out radioactive source nuclear positioning on luggage and personnel, so that the detection of workers is facilitated, and the harm to the workers is reduced.
In this embodiment, the X-ray machine 1 includes a protective cover 13, a first protective cover 7 further extends forward from a front end of the protective cover 13, and the third shielding curtain 5 is disposed in the first protective cover 7; the rear end of the protective cover 13 also extends backwards to form a second protective cover 8, and the fourth shielding curtain 6 is arranged in the second protective cover 8. The first protective cover 7 mainly solves the problems of installation of the third shielding curtain 5 and leakage of X-rays in the circumferential direction; the second protective cover 8 mainly solves the problem of installation of the fourth shielding curtain 6 and the problem of leakage of the X-rays to the circumferential direction.
In the embodiment of the invention, when the existing X-ray machine is technically improved, the first protective cover, the second protective cover and the protective cover of the X-ray machine are spliced together, and when a brand-new product is manufactured, the first protective cover, the second protective cover and the protective cover of the X-ray machine are preferably integrally formed, so that the number of parts is small, and the assembly is simple.
In the present embodiment, the distance between the third shielding curtain 5 and the front shielding curtain 11 is at least 60 CM; the distance between the fourth shielding curtain 6 and the rear shielding curtain 12 is at least 60 CM. Although the size of common luggage is not fixed, the size of luggage is limited by common vehicles, a trolley case with the size of 22 inches or less is the most common size, 60CM corresponds to the length of the trolley case with the size of 24 inches or more, and the size of luggage with the size of more than 24 inches is too large, which is rare. The distances between the third shielding curtain 5 and the front shielding curtain 12 and between the fourth shielding curtain 6 and the rear shielding curtain 12 are at least 60CM, which can solve the problem that the third shielding curtain 5 and the front shielding curtain 12 are pushed open at the same time and the fourth shielding curtain 6 and the rear shielding curtain 12 are pushed open at the same time due to the fact that the size of the luggage is too large.
In this embodiment, the inspection channel includes a left channel and a right channel, and the nuclear radiation detector 2, the X-ray machine 1, the conveyor belt 4, and the nuclear locator 3 are disposed between the left channel and the right channel. The double-channel design can improve the checking efficiency, reduce the time of queuing personnel, simultaneously share the same group of detection equipment and has low equipment cost.
The invention discloses an inspection method of an inspection channel with a composite inspection function, which comprises the following steps:
s1: carrying out nuclear radiation inspection on luggage and personnel by using a nuclear radiation detector;
s2: the personnel place the luggage on the conveyer belt, utilize the conveyer belt to convey the luggage to the X-ray machine, utilize the X-ray machine to carry on the X-ray inspection to the luggage;
s3: the conveying belt is used for continuously conveying the luggage to the end of the conveying belt, and the nuclear positioning instrument is used for carrying out nuclear positioning on the luggage and the personnel by the radioactive source.
When checking the peak, luggage is too much, when closely arranging into one row, third shielding curtain and preceding shielding curtain all can be pushed open, and nuclear radiation detector wrong report police is in the unavoidable, and in the same way, fourth shielding curtain and back shielding curtain all can be pushed open, and nuclear locator wrong report police is in the unavoidable. At the moment, special setting can be carried out through software, and the nuclear radiation detector and the nuclear positioning instrument are shielded and do not give an alarm when detecting that the nuclear radiation detector and the nuclear positioning instrument belong to a ray wave band emitted by the X-ray machine. The frequent alarming in the time of the most luggage and personnel can be avoided, and the generation of queuing conditions is further aggravated. The rays emitting in this band have certain risks, but the coincidence probability is low after all.
As a second embodiment of the inspection channel with the composite inspection function, the second embodiment is different from the first embodiment in that the inspection channel further comprises a detection device for detecting whether the front shielding curtain, the rear shielding curtain, the third shielding curtain and the fourth shielding curtain are completely closed, and when the front shielding curtain and the third shielding curtain are not completely closed, the nuclear radiation detector stops detecting or does not alarm the shielding detection result; and when the fact that the rear shielding curtain and the fourth shielding curtain are not completely closed is detected, the nuclear positioning instrument stops detecting or the shielding detection result does not give an alarm.
In the present invention, the detection device may be a camera having an image recognition function or a sensing device such as a photoelectric sensor, and such a function may be implemented.
The checking method of the checking channel with the composite checking function is changed correspondingly, in step S1, when the detecting device detects that the third shielding curtain and the front shielding curtain are not completely closed, the nuclear radiation detector stops detecting or the shielding detection result does not alarm; when the detection device detects that at least one of the third shielding curtain and the front shielding curtain is in a completely closed state, the nuclear radiation detector starts detection again or does not shield the detection result any more. In step S3, when the detection device detects that neither the fourth shielding curtain nor the rear shielding curtain is completely closed, the nuclear localization instrument stops detecting or does not alarm the shielding detection result; and when the detection device detects that at least one of the fourth shielding curtain and the rear shielding curtain is in a completely closed state, the nuclear positioner starts the detection again or does not shield the detection result any more. Therefore, the nuclear radiation detector and the nuclear positioning instrument have basis when stopping detection or shielding the detection result, are more accurate and have better effect than the first embodiment.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. An inspection channel with a composite inspection function is characterized by comprising an X-ray machine, a nuclear radiation detector, a nuclear locator and a conveying belt, wherein the nuclear radiation detector is arranged at the front end of the inspection channel and is used for performing nuclear radiation inspection on luggage and personnel; the nuclear positioning instrument is arranged at the tail end of the inspection passage and is used for carrying out nuclear positioning on the radioactive source on the luggage and the personnel; the X-ray machine and the conveying belt are arranged in the middle of the checking channel, the X-ray machine is arranged above the conveying belt and used for carrying out X-ray checking on luggage on the conveying belt, a front shielding curtain is arranged on the front side of the X-ray machine, a rear shielding curtain is arranged on the rear side of the X-ray machine, a third shielding curtain is further arranged between the X-ray machine and the nuclear radiation detector and used for shielding rays emitted to the nuclear radiation detector when the front shielding curtain is pushed open by the luggage; and a fourth shielding curtain is also arranged between the X-ray machine and the nuclear locator, and is used for shielding rays emitted to the nuclear locator when the rear shielding curtain is pushed open by luggage.
2. The inspection passage with the composite inspection function according to claim 1, wherein the X-ray machine includes a protection cover, a first protection cover further extends forward from a front end of the protection cover, and the third shielding curtain is disposed in the first protection cover; the safety cover rear end still extends backward has the second safety cover, fourth shielding curtain sets up in the second safety cover.
3. The inspection lane with the composite inspection function as claimed in claim 2, wherein the first protection cover, the second protection cover and the protection cover of the X-ray machine are integrally formed.
4. The inspection channel with composite inspection function according to claim 2, wherein the distance between the third shielding curtain and the front shielding curtain is at least 60 CM; the distance between the fourth shielding curtain and the rear shielding curtain is at least 60 CM.
5. The inspection channel with the composite inspection function according to claim 1, wherein the inspection channel includes a left channel and a right channel, and the nuclear radiation detector, the X-ray machine, the conveyor belt, and the nuclear locator are disposed between the left channel and the right channel.
6. The inspection channel with the composite inspection function according to claim 1, wherein the inspection channel further comprises a detection device for detecting whether the front shielding curtain, the rear shielding curtain, the third shielding curtain and the fourth shielding curtain are completely closed, and when the front shielding curtain and the third shielding curtain are not completely closed, the nuclear radiation detector stops detection or the shielding detection result does not give an alarm; and when the fact that the rear shielding curtain and the fourth shielding curtain are not completely closed is detected, the nuclear positioning instrument stops detecting or the shielding detection result does not give an alarm.
7. The inspection method of the inspection channel having the composite inspection function according to any one of claims 1 to 6, comprising the steps of:
s1: carrying out nuclear radiation inspection on luggage and personnel by using a nuclear radiation detector;
s2: the personnel place the luggage on the conveyer belt, utilize the conveyer belt to convey the luggage to the X-ray machine, utilize the X-ray machine to carry on the X-ray inspection to the luggage;
s3: the conveying belt is used for continuously conveying the luggage to the end of the conveying belt, and the nuclear positioning instrument is used for carrying out nuclear positioning on the luggage and the personnel by the radioactive source.
8. The inspection method of an inspection passage having a composite inspection function according to claim 7, wherein in the step S1, when the detection means detects that neither the third shielding curtain nor the front shielding curtain is completely closed, the nuclear radiation detector stops the detection or the shielding detection result does not alarm; when the detection device detects that at least one of the third shielding curtain and the front shielding curtain is in a completely closed state, the nuclear radiation detector starts detection again or does not shield the detection result any more.
9. The inspection method of an inspection passage having a composite inspection function according to claim 7, wherein in step S3, when the detection means detects that neither the fourth shielding curtain nor the rear shielding curtain is completely closed, the nuclear localization instrument stops the detection or the result of the shielding detection does not alarm; and when the detection device detects that at least one of the fourth shielding curtain and the rear shielding curtain is in a completely closed state, the nuclear positioner starts the detection again or does not shield the detection result any more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110449304.6A CN113109372A (en) | 2021-04-25 | 2021-04-25 | Checking channel with composite checking function and checking method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110449304.6A CN113109372A (en) | 2021-04-25 | 2021-04-25 | Checking channel with composite checking function and checking method thereof |
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| Publication Number | Publication Date |
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| CN113109372A true CN113109372A (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110449304.6A Pending CN113109372A (en) | 2021-04-25 | 2021-04-25 | Checking channel with composite checking function and checking method thereof |
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| CN (1) | CN113109372A (en) |
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2021
- 2021-04-25 CN CN202110449304.6A patent/CN113109372A/en active Pending
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