CN112162276A - Radar detection system for starting escalator and use method thereof - Google Patents
Radar detection system for starting escalator and use method thereof Download PDFInfo
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- CN112162276A CN112162276A CN202011054988.1A CN202011054988A CN112162276A CN 112162276 A CN112162276 A CN 112162276A CN 202011054988 A CN202011054988 A CN 202011054988A CN 112162276 A CN112162276 A CN 112162276A
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- 238000001514 detection method Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004891 communication Methods 0.000 claims description 18
- 238000012545 processing Methods 0.000 claims description 18
- 230000006698 induction Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/87—Combinations of radar systems, e.g. primary radar and secondary radar
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B25/00—Control of escalators or moving walkways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B27/00—Indicating operating conditions of escalators or moving walkways
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/50—Systems of measurement based on relative movement of target
- G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
- G01S13/62—Sense-of-movement determination
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Escalators And Moving Walkways (AREA)
Abstract
The invention discloses a radar detection system for starting an escalator and a use method thereof, and relates to the technical field of escalator target detection, wherein the system comprises a first millimeter wave radar, a second millimeter wave radar and a control module; the method comprises the following steps: s1, the first millimeter wave radar and the second millimeter wave radar detect the target distance data and the speed data in the coverage area at the same time; s2, simultaneously sending the target distance data and the speed data to the control module; s3, the control module respectively judges the measuring distance and the target moving direction, if the target is in the set radar sensing distance range and is closer to the staircase, the step S4 is executed; if the target is traversing laterally relative to the stairs and moving away from the stairs, returning to step S1; s4, the control module outputs a control signal for starting the movement of the escalator, and the escalator has the advantages of strong anti-interference performance, accurate judgment of the target direction and effective filtration of targets passing through transversely relative to the escalator.
Description
Technical Field
The invention relates to the technical field of escalator target detection, in particular to a radar detection system for starting an escalator and a using method thereof.
Background
The escalator is a transportation tool for carrying people, is usually configured for occasions such as markets, supermarkets, hotels and the like, is in a continuous running state under general conditions, people and no people run, and consumes a large amount of electric energy during running, and particularly is extremely serious in electric energy waste during rare night taking. To achieve energy saving, escalators typically employ a detection system to detect passengers, and operate when passengers are seated, and stop operating during periods when no passengers are seated
In traditional staircase system, the mode of detecting whether to take the pedestrian generally adopts infrared ray technique, utilizes infrared ray to respond to the personnel of taking the staircase, and adopts infrared ray method to have some drawbacks, and the infrared ray adopts the correlation mode, and the response interval scope is very little, and the reliability is low, has the regional blind area of response, can not distinguish pedestrian's direction of motion.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a radar detection system for starting an escalator and a using method thereof.
The purpose of the invention is realized by the following technical scheme:
a radar detection system for starting an escalator comprises a first millimeter wave radar, a second millimeter wave radar and a control module;
the first millimeter wave radar comprises a first millimeter wave antenna, a first radio frequency unit, a first signal processing unit and a first communication interface, wherein the first millimeter wave antenna is connected with the first radio frequency unit, the first radio frequency unit is connected with the first signal processing unit, and the first signal processing unit is connected with the first communication interface;
the second millimeter wave radar comprises a second millimeter wave antenna, a second radio frequency unit, a second signal processing unit and a second communication interface, the second millimeter wave antenna is connected with the second radio frequency unit, the second radio frequency unit is connected with the second signal processing unit, and the second signal processing unit is connected with the second communication interface;
the first communication interface and the second communication interface are respectively connected with the control module.
Preferably, the device also comprises a slide rheostat, a driving module, a speed sensor, a counting module and a timing module;
the slide rheostat, the speed sensor, the counting module and the timing module are respectively connected with the control module; the driving module is connected with the slide rheostat and the speed sensor
The slide rheostat is used for controlling the running power of the elevator;
the drive module is used for driving the escalator to run;
the speed sensor is used for detecting the running speed of the escalator;
the counting module is used for calculating the number of people taking the escalator;
the timing module is used for calculating the time for taking the escalator.
Preferably, the wireless sensor network system further comprises a fault detection module, wherein the fault detection module is connected with the first millimeter wave radar, the second millimeter wave radar and the controller, and is used for carrying out fault detection early warning on the first millimeter wave radar and the second millimeter wave radar.
A method of using a radar detection system for starting an escalator, comprising the steps of:
s1, the first millimeter wave radar and the second millimeter wave radar detect the target distance data and the speed data in the coverage area at the same time;
s2, simultaneously sending the target distance data and the speed data to the control module;
s3, the control module respectively judges the measuring distance and the target moving direction, if the target is in the set radar sensing distance range and is closer to the staircase, the step S4 is executed; if the target is traversing laterally relative to the stairs and moving away from the stairs, returning to step S1;
and S4, the control module outputs a control signal for starting the movement of the escalator.
Preferably, the step S4 further includes the following sub-steps:
s4.1, the counting module calculates the number of people on the escalator of the station and sends the information of the number of people to the control module;
s4.2, the control module adjusts the slide rheostat through the received information of the number of people and outputs a control signal for starting the escalator to the driving module;
s4.3, the timing module calculates the time for the people on the escalator to leave the escalator and sends the information to the control module;
and S4.4, the control module regulates and controls the running speed of the escalator by calculating the number of the people remaining on the escalator, and the speed sensor detects the running speed of the escalator and feeds the running speed back to the control module.
Preferably, the following is also included:
the fault detection module carries out fault detection on the first millimeter wave radar and the second millimeter wave radar in real time, when the first millimeter wave radar or the second millimeter wave radar breaks down, the fault detection module feeds fault information back to the controller, and the controller sends early warning information to the maintenance personnel terminal.
Preferably, the method for calculating the number of people on the escalator at the station by the counting module comprises the following steps:
when the first pedestrian is closer to the first millimeter wave radar or the second millimeter wave radar until the first pedestrian passes through the induction area of the first millimeter wave radar or the second millimeter wave radar, the counting module counts the first pedestrian as the first effective number of people taking the escalator, and therefore the next effective people taking the escalator is calculated.
Preferably, the method for counting the time of the people on the escalator leaving the escalator by the timing module comprises the following steps:
setting the maximum number of people carrying the escalator at the same time as N, the number of effective people taking the escalator as N, when N is more than 0 and less than N/3, the speed of the escalator is V1, when N is more than or equal to N/3 and less than 2N/3, the speed of the escalator is V2, when N is more than or equal to 2N/3 and less than N, the speed of the escalator is V3, and the travel of the escalator is L;
the controller controls the escalator to reach the corresponding running speed by judging the limited number of people taking the escalator in which section, and the timing module calculates the stay time T of each person effectively taking the escalator on the escalator in the section, wherein the T is L/V1 or L/V2 or L/V3.
Preferably, the method for counting the time when the person on the escalator leaves the escalator by the timing module further comprises the following steps:
the timing module counts the initial time T1 for each person effectively riding the escalator, the initial speed is set as V1, the time when the speed of the escalator changes is set as T2 when the person riding the escalator rides the escalator, the speed change is set as T2, and the time when the person riding the escalator stays on the elevator is T2-T1+ { [ L- (T2-T1) } V1]/V2 }.
The invention has the beneficial effects that:
1) the millimeter wave 24GHz working frequency is adopted, and the anti-interference performance is strong.
2) The moving direction of the target can be accurately judged.
3) And two millimeter wave radars are adopted for combined measurement, so that targets passing through transversely relative to the escalator can be effectively filtered.
4) Through setting up slide rheostat, drive module, speedtransmitter, count module and timing module, control module can adjust the functioning speed of staircase according to the number of people on the staircase, saves the electric energy.
Drawings
FIG. 1 is a schematic view of example 1 of the present invention;
FIG. 2 is a schematic view of example 2 of the present invention;
fig. 3 is a schematic diagram of embodiment 3 of the present invention.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
Example 1
As shown in fig. 1, a radar detection system for starting an escalator includes a first millimeter-wave radar, a second millimeter-wave radar, and a control module;
the first millimeter wave radar comprises a first millimeter wave antenna, a first radio frequency unit, a first signal processing unit and a first communication interface, wherein the first millimeter wave antenna is connected with the first radio frequency unit, the first radio frequency unit is connected with the first signal processing unit, and the first signal processing unit is connected with the first communication interface;
the second millimeter wave radar comprises a second millimeter wave antenna, a second radio frequency unit, a second signal processing unit and a second communication interface, the second millimeter wave antenna is connected with the second radio frequency unit, the second radio frequency unit is connected with the second signal processing unit, and the second signal processing unit is connected with the second communication interface;
the first communication interface and the second communication interface are respectively connected with the control module.
Example 2
As shown in fig. 2, the apparatus further includes a sliding rheostat, a driving module, a speed sensor, a counting module and a timing module based on embodiment 1;
the slide rheostat, the speed sensor, the counting module and the timing module are respectively connected with the control module; the driving module is connected with the slide rheostat and the speed sensor;
the slide rheostat is used for controlling the running power of the elevator; when a person takes the escalator, the resistance of the rheostat is reduced by the control module, so that the escalator can run at an accelerated speed due to the fact that the power of the driving module is increased and is increased more.
The drive module is used for driving the escalator to run;
the speed sensor is used for detecting the running speed of the escalator;
the counting module is used for calculating the number of people taking the escalator;
the timing module is used for calculating the time for taking the escalator.
The driving module comprises a three-phase asynchronous motor, the three-phase asynchronous motor with single speed, low noise and large starting torque is used as power, and the main shaft wheel is driven by a speed reducing machine to drive the traction chain to rotate. The traction chain drives the step to move, so that the step main wheel rotates along the step guide rail, and the step is lifted or lowered to run
It should be noted that the wireless sensor network controller further comprises a fault detection module, wherein the fault detection module is connected with the first millimeter wave radar, the second millimeter wave radar and the controller, and the fault detection module is used for carrying out fault detection early warning on the first millimeter wave radar and the second millimeter wave radar.
Example 3:
as shown in fig. 3, on the basis of embodiment 1, a method for using a radar detection system for starting an escalator includes the following steps:
s1, the first millimeter wave radar and the second millimeter wave radar detect the target distance data and the speed data in the coverage area at the same time;
s2, simultaneously sending the target distance data and the speed data to the control module;
s3, the control module respectively judges the measuring distance and the target moving direction, if the target is in the set radar sensing distance range and is closer to the staircase, the step S4 is executed; if the target is traversing laterally relative to the stairs and moving away from the stairs, returning to step S1;
and S4, the control module outputs a control signal for starting the movement of the escalator.
Preferably, the step S4 further includes the following sub-steps:
s4.1, the counting module calculates the number of people on the escalator of the station and sends the information of the number of people to the control module;
s4.2, the control module adjusts the slide rheostat through the received information of the number of people and outputs a control signal for starting the escalator to the driving module;
s4.3, the timing module calculates the time for the people on the escalator to leave the escalator and sends the information to the control module;
and S4.4, the control module regulates and controls the running speed of the escalator by calculating the number of the people remaining on the escalator, and the speed sensor detects the running speed of the escalator and feeds the running speed back to the control module.
Example 4
In addition to embodiments 2 and 3, the following are included in consideration of the possibility of traffic congestion if the number of people in the elevator increases and the speed of the elevator is not changed:
the fault detection module carries out fault detection on the first millimeter wave radar and the second millimeter wave radar in real time, when the first millimeter wave radar or the second millimeter wave radar breaks down, the fault detection module feeds fault information back to the controller, and the controller sends early warning information to the maintenance personnel terminal.
In addition, the method for calculating the number of people on the escalator in the station by the counting module comprises the following steps:
when the first pedestrian is closer to the first millimeter wave radar or the second millimeter wave radar until the first pedestrian passes through the induction area of the first millimeter wave radar or the second millimeter wave radar, the counting module counts the first pedestrian as the first effective number of people taking the escalator, and therefore the next effective people taking the escalator is calculated.
Further, the method for counting the time of the people on the escalator leaving the escalator by the timing module comprises the following steps:
setting the maximum number of people carrying the escalator at the same time as N, the number of effective people taking the escalator as N, when N is more than 0 and less than N/3, the speed of the escalator is V1, when N is more than or equal to N/3 and less than 2N/3, the speed of the escalator is V2, when N is more than or equal to 2N/3 and less than N, the speed of the escalator is V3, and the travel of the escalator is L;
the controller controls the escalator to reach the corresponding running speed by judging the limited number of people taking the escalator in which section, and the timing module calculates the stay time T of each person effectively taking the escalator on the escalator in the section, wherein the T is L/V1 or L/V2 or L/V3.
Wherein the method for the timing module to count the people on the escalator leaving the escalator further comprises the following steps:
the timing module counts the initial time T1 for each person effectively riding the escalator, the initial speed is set as V1, the time when the speed of the escalator changes is set as T2 when the person riding the escalator rides the escalator, the speed change is set as T2, and the time when the person riding the escalator stays on the elevator is T2-T1+ { [ L- (T2-T1) } V1]/V2 }.
The foregoing is merely a preferred embodiment of the invention, it being understood that the embodiments described are part of the invention, and not all of it. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The invention is not intended to be limited to the forms disclosed herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A radar detection system for starting an escalator is characterized by comprising a first millimeter wave radar, a second millimeter wave radar and a control module;
the first millimeter wave radar comprises a first millimeter wave antenna, a first radio frequency unit, a first signal processing unit and a first communication interface, wherein the first millimeter wave antenna is connected with the first radio frequency unit, the first radio frequency unit is connected with the first signal processing unit, and the first signal processing unit is connected with the first communication interface;
the second millimeter wave radar comprises a second millimeter wave antenna, a second radio frequency unit, a second signal processing unit and a second communication interface, the second millimeter wave antenna is connected with the second radio frequency unit, the second radio frequency unit is connected with the second signal processing unit, and the second signal processing unit is connected with the second communication interface;
the first communication interface and the second communication interface are respectively connected with the control module.
2. The radar detection system for starting an escalator as claimed in claim 1, further comprising a slide rheostat, a driving module, a speed sensor, a counting module and a timing module;
the slide rheostat, the speed sensor, the counting module and the timing module are respectively connected with the control module; the driving module is connected with the slide rheostat and the speed sensor;
the slide rheostat is used for controlling the running power of the elevator;
the drive module is used for driving the escalator to run;
the speed sensor is used for detecting the running speed of the escalator;
the counting module is used for calculating the number of people taking the escalator;
the timing module is used for calculating the time for taking the escalator.
3. The radar detection system for starting the escalator as claimed in claim 1, further comprising a fault detection module, wherein the fault detection module is connected with the first millimeter wave radar, the second millimeter wave radar and the controller, and the fault detection module is used for performing fault detection early warning on the first millimeter wave radar and the second millimeter wave radar.
4. A method of using a radar detection system for starting an escalator, comprising the steps of:
s1, the first millimeter wave radar and the second millimeter wave radar detect the target distance data and the speed data in the coverage area at the same time;
s2, simultaneously sending the target distance data and the speed data to the control module;
s3, the control module respectively judges the measuring distance and the target moving direction, if the target is in the set radar sensing distance range and is closer to the staircase, the step S4 is executed; if the target is traversing laterally relative to the stairs and moving away from the stairs, returning to step S1;
and S4, the control module outputs a control signal for starting the movement of the escalator.
5. Use of a radar detection system for starting an escalator as claimed in claim 4, characterized in that said step S4 further comprises the following sub-steps:
s4.1, the counting module calculates the number of people on the escalator of the station and sends the information of the number of people to the control module;
s4.2, the control module adjusts the slide rheostat through the received information of the number of people and outputs a control signal for starting the escalator to the driving module;
s4.3, the timing module calculates the time for the people on the escalator to leave the escalator and sends the information to the control module;
and S4.4, the control module regulates and controls the running speed of the escalator by calculating the number of the people remaining on the escalator, and the speed sensor detects the running speed of the escalator and feeds the running speed back to the control module.
6. Use of a radar detection system for starting an escalator as claimed in claim 4, characterized in that it comprises the following:
the fault detection module carries out fault detection on the first millimeter wave radar and the second millimeter wave radar in real time, when the first millimeter wave radar or the second millimeter wave radar breaks down, the fault detection module feeds fault information back to the controller, and the controller sends early warning information to the maintenance personnel terminal.
7. Use of a radar detection system for starting an escalator as claimed in claim 5, characterized in that the counting module counts the number of people on the escalator at the station by:
when the first pedestrian is closer to the first millimeter wave radar or the second millimeter wave radar until the first pedestrian passes through the induction area of the first millimeter wave radar or the second millimeter wave radar, the counting module counts the first pedestrian as the first effective number of people taking the escalator, and therefore the next effective people taking the escalator is calculated.
8. Use of a radar detection system for starting an escalator as claimed in claim 7, characterised in that the method of the timing module counting the exit of a person on the escalator from the escalator comprises the following:
setting the maximum number of people carrying the escalator at the same time as N, the number of effective people taking the escalator as N, when N is more than 0 and less than N/3, the speed of the escalator is V1, when N is more than or equal to N/3 and less than 2N/3, the speed of the escalator is V2, when N is more than or equal to 2N/3 and less than N, the speed of the escalator is V3, and the travel of the escalator is L;
the controller controls the escalator to reach the corresponding running speed by judging the limited number of people taking the escalator in which section, and the timing module calculates the stay time T of each person effectively taking the escalator on the escalator in the section, wherein the T is L/V1 or L/V2 or L/V3.
9. Use of a radar detection system for starting an escalator as claimed in claim 8, wherein the method of the timing module counting the exit of a person on the escalator from the escalator further comprises the following:
the timing module counts the initial time T1 for each person effectively riding the escalator, the initial speed is set as V1, the time when the speed of the escalator changes is set as T2 when the person riding the escalator rides the escalator, the speed change is set as T2, and the time when the person riding the escalator stays on the elevator is T2-T1+ { [ L- (T2-T1) } V1]/V2 }.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112926722A (en) * | 2021-01-27 | 2021-06-08 | 上海兰宝传感科技股份有限公司 | Method for counting people in escalator entrance area |
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Cited By (1)
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| CN112926722A (en) * | 2021-01-27 | 2021-06-08 | 上海兰宝传感科技股份有限公司 | Method for counting people in escalator entrance area |
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