CN107819278A - A kind of handcart type breaker cabinet masking device and method - Google Patents
A kind of handcart type breaker cabinet masking device and method Download PDFInfo
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- CN107819278A CN107819278A CN201711116970.8A CN201711116970A CN107819278A CN 107819278 A CN107819278 A CN 107819278A CN 201711116970 A CN201711116970 A CN 201711116970A CN 107819278 A CN107819278 A CN 107819278A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/14—Shutters or guards for preventing access to contacts
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/22—Status alarms responsive to presence or absence of persons
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/02—Details
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar Systems Or Details Thereof (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The invention provides a kind of handcart type breaker cabinet masking device (32), it is characterised in that the handcart type breaker cabinet masking device (32) includes：Insulation barrier, radar sensor (12), warning mark (13), alarm (16), the first in command (14), the second in command (15), the first permanent magnet (20) and the second permanent magnet (21).The present invention prevents operating personnel from touching link gear in handcart type breaker cabinet by mistake, opens valve and triggers electric shock accidents.
Description
Technical field
The present invention relates to field of electric power automation, more particularly to a kind of handcart type breaker cabinet masking device and method.
Background technology
When currently carrying out handcart-type switch maintenance, safety measure is relatively easy.It is only at present to rely on handcart-type to break
The nameplate of the outer side mounting " halting, Keep Clear-High Voltage " of road device cabinet, and isolate the insulation stop at powered position in handcart type breaker cabinet
Two safety measures of plate.Handcart type breaker cabinet cabinet insulating barrier valve linkage has two groups, is separately mounted in switch cubicle
Both sides, it is close to cabinet side plate, apart from ground 300-400mm.Although dividing plate could be opened by only being trampled or being pressed with larger strength
Valve, but just in case open, it will maintainer is exposed in conductive environment, preferably cause personal injury.
The content of the invention
The present invention is to solve the above problems, provide a kind of handcart type breaker cabinet masking device, it is characterised in that described
Handcart type breaker cabinet masking device includes：Insulation barrier, radar sensor, warning mark, alarm, the first in command, second
Handle, the first permanent magnet and the second permanent magnet；The radar sensor is arranged on the insulation barrier front upper left corner, the police
Indicating will is painted on the hand insulation barrier front center position, and the alarm is arranged on insulation barrier front upper right
Angle, the first in command are arranged in the middle part of the insulation barrier frontal left, and the second in command is arranged on the insulation barrier
Positive right side central；First permanent magnet is arranged at the top of the insulation barrier back side, and second permanent magnet is arranged on institute
State insulation barrier back bottom.
The present invention can prevent operating personnel from touching link gear in handcart type breaker cabinet by mistake, open valve and trigger electric shock
Accident, rational alarm region division can be carried out to computer room (36) region, protected according to different computer rooms (36) and rack condition
Rate of false alarm is reduced on the basis of card operating personnel's safety, good work climate is created for staff, improves operating efficiency.
Brief description of the drawings
Fig. 1 is the handcart type breaker cabinet masking device front schematic view of the present invention.
Fig. 2 is the handcart type breaker cabinet masking device schematic rear view of the present invention.
Fig. 3 is the alarm subregion schematic diagram of the present invention.
Symbol description：
11：Insulation barrier front；12：Radar sensor；13：Warning mark；14：The first in command；15：The second in command；16：
Alarm；20：First permanent magnet；21：Second permanent magnet；22：The insulation barrier back side；32：Handcart type breaker cabinet masking device；
33：First alarm region；34：Second alarm region；35：3rd alarm region (35)；36：Computer room.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below by the technology in the embodiment of the present invention
Scheme is clearly and completely described, it is clear that and described embodiment is part of the embodiment of the present invention, rather than whole
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of description originally, rather than the device or element of instruction or hint meaning must have
There is specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
The embodiment of the present invention one discloses a kind of handcart type breaker cabinet masking device (32), it is characterised in that the hand
Vehicle type breaker cabinet masking device (32) includes：Insulation barrier, radar sensor (12), warning mark (13), alarm (16),
The first in command (14), the second in command (15), the first permanent magnet (20) and the second permanent magnet (21)；Radar sensor (12) peace
Mounted in positive (11) upper left corner of the insulation barrier, the warning mark (13) is painted in the hand insulation barrier positive (11)
Heart position, the alarm (16) are arranged on positive (11) upper right corner of the insulation barrier, and the first in command (14) is arranged on
Positive (11) left side central portion of the insulation barrier, during the second in command (15) is arranged on the right side of the insulation barrier positive (11)
Portion；First permanent magnet (20) is arranged at the top of the insulation barrier back side (22), and second permanent magnet (21) is arranged on
The insulation barrier back side (22) bottom.
Particularly, the insulation barrier material is epoxy glass laminate.
Particularly, first permanent magnet (20) and the second permanent magnet (21) length are 60-110CM, width 2-3CM.
Particularly, the first in command (14) and the second in command (15) are arranged on handcart-type open circuit by self-tapping screw
Device cabinet masking device (32) front；
Particularly, the radar sensor (12) is 24GHz radar sensors (12).
The embodiment of the present invention two discloses a kind of alarm method for being based on handcart type breaker cabinet masking device (32), and it is special
Sign is, including：
Step 100：Handcart type breaker cabinet masking device (32) as shown in embodiment one is provided；
Step 200：The distance of computer room (36) wall is obtained using the radar sensor (12), the computer room (36) is marked
Standard turns to a rectangle；
Specific method is：
Because handcart type breaker cabinet is usually to be placed by wall, other directions in addition to opening are all protected by cabinet, no
It may touch inside handcart type breaker cabinet, so only needing to consider in front of masking device close to handcart type breaker cabinet
Situation.
As shown in figure 3, using the radar sensor (12) position as origin, rectangular coordinate system is established in the horizontal plane, by
Radar sensor (12) property is understood, is appointed and is taken the n boundary point that the radar sensor (12) detects, then i-th of point Xi
D can be designated as respectively with the distance of origin and with the angle of abscissa lineiAnd αi, coordinate can be expressed as (dicosαi,disin
αi), according to point set { XiX can be obtainedmin、XmaxAnd Ymin, wherein to sit abscissa maximum, XminFor abscissa minimum value,
YminFor ordinate minimum value, it is clear that ordinate maximum can consider that as 0 then the four edges of rectangle are：
Wherein n1、n2And n3Respectively meet constraints WithBoundary point Xi
Number.Computer room (36), which is standardized, to be advantageous in that：Calculating can be simplified, efficiency of algorithm is improved, be later alarm algorithm
Basis is provided；Even same computer room (36), because computer room (36) arrangement is different, (such as computer room (36) only has handcart type breaker
Cabinet and possess a variety of power equipments and substantially have any different, handcart type breaker cabinet is deployed in the center of certain face wall and is deployed in some angle
Fall and also have any different), activity space is also different, the use of this method can be approximately a rectangle by activity space, determines that people lives
Dynamic scope, so as to determine the suitable size of each alarm region in step 300 according to scope of activities, reduces the generation of wrong report.
The radar sensor (12) has multiple radar emission chips or can be considered as the collection of multiple radar sensors
Into the mobile object and boundary point in multiple directions can be detected.
Step 300：According to the computer room (36) length and wide, handcart type breaker cabinet position and the handcart type breaker
Cabinet masking device (32) size, alarm region division is carried out to the computer room (36)；
Specific method is：
Computer room (36) curve after note standardization is G (x), it is clear that can obtain the length and width of computer room (36), be designated as L respectively
And W.If a width of w of the handcart type breaker cabinet masking device (32), the handcart type breaker cabinet masking device (32)
Centre coordinate be
Then the first alarm region (33) can be described as：
Wherein (xj,yj) it is x j-th point in computer room (36)jFor j-th point of abscissa, yjFor j-th point of vertical seat
Mark；T1For first threshold, by User Defined, preferably 50CM；
First alarm region (33) is exactly to be less than or equal to first with handcart type breaker cabinet masking device (32) minimum range
The figure of the point composition of threshold value；It is the circle of radius, with handcart type breaker cabinet masking device namely using left and right end points as the center of circle
(32) apart from the parallel lines for being first threshold, and the figure that computer room (36) boundary curve surrounds；
Second alarm region (34) can be described as：
Wherein T2For Second Threshold；
T2A kind of computational methods be：
Part in computer room (36) beyond the first alarm region (33) and the second alarm region (34) is the 3rd alarm region
(35)；By carrying out alarm region division to computer room (36) area, there is following advantage：First, suitable for a variety of computer rooms (36),
No matter how the environment of computer room (36) changes, and can be divided using this method；Second, computer room (36) region is divided into not
Same alarm region, then uses different alarm criterias for no alarm region, advantageously reduces wrong report, for the people that works
Member creates good work climate, improves operating efficiency.
Step 400：Position, distance, speed and the angle of mobile object are obtained using the radar sensor (12)；
Step 500：Judge the mobile object is to the minimum range of the handcart type breaker cabinet masking device (32)
It is no to fall into the first alarm subregion, if it is alarm；
Step 600：Judge the mobile object is to the minimum range of the handcart type breaker cabinet masking device (32)
It is no to fall into the second alarm subregion, if it is judge the moving direction of the mobile object, reported if moving direction is proximate to
It is alert, if moving direction do not alarmed away from if.
The embodiment of the present invention can prevent operating personnel from touching link gear in handcart type breaker cabinet by mistake, open valve and draw
Electric shock accidents is sent out, rational alarm region can be carried out to computer room (36) region according to different computer rooms (36) and rack condition
Division, ensure to reduce rate of false alarm on the basis of operating personnel's safety, create good work climate for staff, improve work
Make efficiency.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
- A kind of 1. handcart type breaker cabinet masking device (32), it is characterised in that the handcart type breaker cabinet masking device (32) include：Insulation barrier, radar sensor (12) and alarm (16).
- 2. handcart type breaker cabinet masking device (32) according to claim 1, it is characterised in that the handcart-type open circuit Device cabinet masking device (32) also includes warning mark (13), the first in command (14), the second in command (15), the first permanent magnet (20) and Second permanent magnet (21).
- 3. handcart type breaker cabinet masking device (32) according to claim 2, it is characterised in that first permanent magnet (20) and the second permanent magnet (21) length is 60-110CM, width 2-3CM.
- 4. handcart type breaker cabinet masking device (32) according to claim 3, it is characterised in that the radar sensor (12) it is 24GHz radar sensors (12).
- 5. handcart type breaker cabinet masking device (32) according to claim 4, it is characterised in that the radar sensor (12) positive (11) upper left corner of the insulation barrier is arranged on, it is positive (11) that the alarm (16) is arranged on the insulation barrier The upper right corner.
- 6. handcart type breaker cabinet masking device (32) according to claim 5, it is characterised in that the warning mark (13) it is painted on positive (11) center of the hand insulation barrier.
- 7. handcart type breaker cabinet masking device (32) according to claim 6, it is characterised in that the insulation stop sheet material Matter is epoxy glass laminate.
- 8. handcart type breaker cabinet masking device (32) according to claim 7, it is characterised in that the first in command (14) positive (11) left side central portion of the insulation barrier is arranged on, the second in command (15) is arranged on insulation barrier front (11) right side central.
- 9. handcart type breaker cabinet masking device (32) according to claim 8, it is characterised in that first permanent magnet (20) it is arranged at the top of the insulation barrier back side (22), second permanent magnet (21) is arranged on the insulation barrier back side (22) bottom.
- 10. a kind of alarm method of the handcart type breaker cabinet masking device (32) based on described in claim 9, its feature exist In, including：Step 100：Handcart type breaker cabinet masking device (32) as claimed in claim 4 is provided；Step 200：The distance of computer room (36) wall is obtained using the radar sensor (12), the computer room (36) is standardized For a rectangle：Using the radar sensor (12) position as origin, rectangular coordinate system is established in the horizontal plane, is appointed and is taken the radar to sense The n boundary point that device (12) detects, then i-th of boundary point XiIt can divide with the distance of origin and with abscissa line angle D is not designated as itiAnd αi, coordinate can be expressed as (di cosαi,di sinαi), according to point set { XiX can be obtainedmin、XmaxWith Ymin, wherein to sit abscissa maximum, XminFor abscissa minimum value, YminFor ordinate minimum value, then rectangle is：<mrow> <mfenced open = "{" close = ""> <mtable> <mtr> <mtd> <mrow> <mi>x</mi> <mo>=</mo> <mfrac> <mn>1</mn> <msub> <mi>n</mi> <mn>1</mn> </msub> </mfrac> <munder> <mi>&Sigma;</mi> <mrow> <msub> <mi>d</mi> <mi>i</mi> </msub> <msub> <mi>cos&alpha;</mi> <mi>i</mi> </msub> <mo>&le;</mo> <mfrac> <mn>1</mn> <mn>2</mn> </mfrac> <mrow> <mo>(</mo> <mrow> <msub> <mi>x</mi> <mi>min</mi> </msub> <mo>+</mo> <msub> <mi>x</mi> <mi>max</mi> </msub> </mrow> <mo>)</mo> </mrow> <mo>,</mo> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> <msub> <mi>y</mi> <mi>max</mi> </msub> <mo>+</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <msub> <mi>y</mi> <mi>min</mi> </msub> <mo>&le;</mo> <msub> <mi>d</mi> <mi>i</mi> </msub> <msub> <mi>sin&alpha;</mi> <mi>i</mi> </msub> <mo>&le;</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <msub> <mi>y</mi> <mi>max</mi> </msub> <mo>+</mo> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> <msub> <mi>y</mi> <mi>min</mi> </msub> </mrow> </munder> <msub> <mi>d</mi> <mi>i</mi> </msub> <msub> <mi>cos&alpha;</mi> <mi>i</mi> </msub> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <mi>x</mi> <mo>=</mo> <mfrac> <mn>1</mn> <msub> <mi>n</mi> <mn>2</mn> </msub> </mfrac> <munder> <mi>&Sigma;</mi> <mrow> <msub> <mi>d</mi> <mi>i</mi> </msub> <msub> <mi>cos&alpha;</mi> <mi>i</mi> </msub> <mo>&GreaterEqual;</mo> <mfrac> <mn>1</mn> <mn>2</mn> </mfrac> <mrow> <mo>(</mo> <mrow> <msub> <mi>x</mi> <mi>min</mi> </msub> <mo>+</mo> <msub> <mi>x</mi> <mi>max</mi> </msub> </mrow> <mo>)</mo> </mrow> <mo>,</mo> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> <msub> <mi>y</mi> <mi>max</mi> </msub> <mo>+</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <msub> <mi>y</mi> <mi>min</mi> </msub> <mo>&le;</mo> <msub> <mi>d</mi> <mi>i</mi> </msub> <msub> <mi>sin&alpha;</mi> <mi>i</mi> </msub> <mo>&le;</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <msub> <mi>y</mi> <mi>max</mi> </msub> <mo>+</mo> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> <msub> <mi>y</mi> <mi>min</mi> </msub> </mrow> </munder> <msub> <mi>d</mi> <mi>i</mi> </msub> <msub> <mi>cos&alpha;</mi> <mi>i</mi> </msub> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <mi>y</mi> <mo>=</mo> <mfrac> <mn>1</mn> <msub> <mi>n</mi> <mn>3</mn> </msub> </mfrac> <munder> <mi>&Sigma;</mi> <mrow> <msub> <mi>d</mi> <mi>i</mi> </msub> <msub> <mi>sin&alpha;</mi> <mi>i</mi> </msub> <mo>&le;</mo> <mfrac> <mn>1</mn> <mn>2</mn> </mfrac> <mrow> <mo>(</mo> <mrow> <msub> <mi>y</mi> <mi>min</mi> </msub> <mo>+</mo> <msub> <mi>y</mi> <mi>max</mi> </msub> </mrow> <mo>)</mo> </mrow> <mo>,</mo> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> <msub> <mi>x</mi> <mi>max</mi> </msub> <mo>+</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <msub> <mi>x</mi> <mi>min</mi> </msub> <mo>&le;</mo> <msub> <mi>d</mi> <mi>i</mi> </msub> <msub> <mi>cos&alpha;</mi> <mi>i</mi> </msub> <mo>&le;</mo> <mfrac> <mn>2</mn> <mn>3</mn> </mfrac> <msub> <mi>x</mi> <mi>max</mi> </msub> <mo>+</mo> <mfrac> <mn>1</mn> <mn>3</mn> </mfrac> <msub> <mi>x</mi> <mi>min</mi> </msub> </mrow> </munder> <msub> <mi>d</mi> <mi>i</mi> </msub> <msub> <mi>sin&alpha;</mi> <mi>i</mi> </msub> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <mi>y</mi> <mo>=</mo> <mn>0</mn> </mrow> </mtd> </mtr> </mtable> </mfenced> <mo>;</mo> </mrow>Wherein n1、n2And n3Respectively meet constraints WithBoundary point Xi Number；Step 300：Hidden according to the computer room (36) is long with wide, handcart type breaker cabinet position and the handcart type breaker cabinet Device (32) size is covered, alarm region division is carried out to the computer room (36)；If a width of w of the handcart type breaker cabinet masking device (32), the first alarm region (33) are：<mrow> <mfenced open = "{" close = ""> <mtable> <mtr> <mtd> <mrow> <msup> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mi>j</mi> </msub> <mo>-</mo> <mi>w</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <msub> <mi>y</mi> <mi>j</mi> </msub> <mn>2</mn> </msup> <mo>&le;</mo> <msup> <msub> <mi>T</mi> <mn>1</mn> </msub> <mn>2</mn> </msup> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <msup> <msub> <mi>x</mi> <mi>j</mi> </msub> <mn>2</mn> </msup> <mo>+</mo> <msup> <msub> <mi>y</mi> <mi>j</mi> </msub> <mn>2</mn> </msup> <mo>&le;</mo> <msup> <msub> <mi>T</mi> <mn>1</mn> </msub> <mn>2</mn> </msup> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <msub> <mi>y</mi> <mi>j</mi> </msub> <mo>&le;</mo> <mo>-</mo> <msub> <mi>T</mi> <mn>1</mn> </msub> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <mi>G</mi> <mrow> <mo>(</mo> <mi>x</mi> <mo>)</mo> </mrow> </mrow> </mtd> </mtr> </mtable> </mfenced> <mo>;</mo> </mrow>Wherein (xj,yj) it is x j-th point in computer room (36)jFor j-th point of abscissa, yjFor j-th point of ordinate；T1For First threshold；Second alarm region (34) is：<mrow> <mfenced open = "{" close = ""> <mtable> <mtr> <mtd> <mrow> <msup> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mi>j</mi> </msub> <mo>-</mo> <mi>w</mi> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>+</mo> <msup> <msub> <mi>y</mi> <mi>j</mi> </msub> <mn>2</mn> </msup> <mo>&le;</mo> <msup> <msub> <mi>T</mi> <mn>2</mn> </msub> <mn>2</mn> </msup> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <msup> <msub> <mi>x</mi> <mi>j</mi> </msub> <mn>2</mn> </msup> <mo>+</mo> <msup> <msub> <mi>y</mi> <mi>j</mi> </msub> <mn>2</mn> </msup> <mo>&le;</mo> <msup> <msub> <mi>T</mi> <mn>2</mn> </msub> <mn>2</mn> </msup> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <msub> <mi>y</mi> <mi>j</mi> </msub> <mo>&le;</mo> <mo>-</mo> <msub> <mi>T</mi> <mn>2</mn> </msub> </mrow> </mtd> </mtr> <mtr> <mtd> <mrow> <mi>G</mi> <mrow> <mo>(</mo> <mi>x</mi> <mo>)</mo> </mrow> </mrow> </mtd> </mtr> </mtable> </mfenced> <mo>;</mo> </mrow>Wherein T2For Second Threshold；Part in computer room (36) beyond the first alarm region (33) and the second alarm region (34) is the 3rd alarm region (35)；Step 400：Position, distance, speed and the angle of mobile object are obtained using the radar sensor (12)；Step 500：Judge whether the mobile object falls to the minimum range of the handcart type breaker cabinet masking device (32) Enter the first alarm subregion, if it is alarm；Step 600：Judge whether the mobile object falls to the minimum range of the handcart type breaker cabinet masking device (32) Enter the second alarm subregion, if it is judge the moving direction of the mobile object, alarmed if moving direction is proximate to, such as Fruit moving direction is away from not alarming then.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016110626542 | 2016-11-25 | ||
| CN201611062654 | 2016-11-25 |
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| CN107819278B CN107819278B (en) | 2023-07-14 |
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