CN111009098A - Safety distance early warning method and system - Google Patents
Safety distance early warning method and system Download PDFInfo
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- CN111009098A CN111009098A CN201911129529.2A CN201911129529A CN111009098A CN 111009098 A CN111009098 A CN 111009098A CN 201911129529 A CN201911129529 A CN 201911129529A CN 111009098 A CN111009098 A CN 111009098A
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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
- G08B21/02—Alarms for ensuring the safety of persons
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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
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/06—Systems determining the position data of a target
- G01S15/08—Systems for measuring distance only
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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
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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Abstract
The invention discloses a safety distance early warning method and a safety distance early warning system, wherein the method comprises the following steps: presetting a prompt index template, wherein the prompt index template comprises a safe distance range and an alarm prompt index; acquiring a first distance between an obstacle and a charged object at t 1; determining whether the first distance exceeds a safe distance range according to a prompt index template; if yes, determining a corresponding prompt type according to the alarm prompt index; and executing corresponding alarm prompt according to the prompt type. The system comprises a distance measurement module, a control module and an alarm module and is used for realizing the method. The safety distance early warning method and the safety distance early warning system achieve the purpose of monitoring whether the operating personnel exceed the safety distance limit or not by monitoring the distance between the obstacle and the charged object, and carry out grading alarm when the obstacle is monitored to exceed the safety distance range so as to warn the operating personnel exceeding the safety distance range, thereby achieving the purpose of protecting the personal safety of the operating personnel.
Description
Technical Field
The invention relates to the technical field of live working safety monitoring, in particular to a safety distance early warning method and a safety distance early warning system.
Background
According to the requirement of the power regulation, when a constructor carries out live-line operation or partially live installation and construction operation on a line, the constructor and tools thereof and a live object are kept beyond a safety distance specified by the equipment voltage level so as to avoid safety accidents.
However, in actual work, the line crossing behavior of such factors or other factors, for example, an operation space limitation or an error in grasping a safe distance due to inexperience of an operator, often causes a high electric shock risk in the live working process.
At present, various methods for preventing workers from mistakenly touching live equipment exist, but in the actual working process, due to the concentration degree of the constructors or the reason of the operation space, the workers still cares about the safe distance due to excessive concentration, so that the risk of electric shock is difficult to avoid.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a safety distance early warning method and a safety distance early warning system, which solve the problem that in the prior art, high safety risk is easily caused by crossing a safety distance limit during live-line work.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a safety distance early warning method comprises the following steps:
presetting a prompt index template, wherein the prompt index template comprises a safe distance range and an alarm prompt index;
acquiring a first distance between an obstacle and a charged object at a first time t 1; determining whether the first distance exceeds the safe distance range according to the prompt index template; if yes, determining a corresponding prompt type according to the alarm prompt index;
executing corresponding alarm prompt according to the prompt type;
the obstacle is an operator or an article on the operator.
Optionally, the method further includes:
acquiring a second distance between the obstacle and the charged object at a second time t 2; determining whether the second distance exceeds the safe distance range according to the prompt index template; if yes, determining a corresponding prompt type according to the alarm prompt index;
wherein the second time t2 is later than the first time t 1.
Optionally, the warning indication index includes a warning indication index, the warning indication index is a first warning level distance between the obstacle and the charged object when the safety distance range is exceeded, and the warning indication corresponding to the warning indication index includes a first-stage warning indication and a second-stage warning indication;
when the first distance/the second distance meets an early warning index, starting a first-level early warning prompt;
and when the first distance and the second distance simultaneously meet the early warning index, starting secondary early warning prompt.
Optionally, the alarm prompt indicator further includes an alarm indicator, where the alarm indicator is a second alarm level distance between the obstacle and the charged object when the alarm indicator exceeds a safety distance range, and the second alarm level distance is smaller than the first alarm level distance; the alarm prompts corresponding to the alarm indexes comprise a first-level alarm prompt and a second-level alarm prompt;
when the first distance/the second distance meets an alarm index, starting a first-level alarm prompt;
and when the first distance and the second distance simultaneously meet the alarm index, starting a secondary alarm prompt.
Optionally, the method for acquiring the first distance/the second distance includes:
the control distance measurement module sends detection signals in real time and receives detection feedback signals fed back; and calculating the current distance value between the obstacle and the charged object according to the detection feedback signal.
Optionally, the type of the alarm prompt includes one or more of an alarm sound prompt and a warning light prompt.
The invention also provides a safety distance early warning system, which comprises:
the ranging module is used for sending a detection signal at a preset ranging time interval and receiving a detection feedback signal fed back;
a control module to: presetting a prompt index template; calculating a current distance value between the obstacle and the charged object according to the detection feedback signal; determining whether the current distance value between the obstacle and the charged object exceeds the safe distance range or not according to the prompt index template; determining a corresponding prompt type according to the alarm prompt index;
and the alarm module is used for executing corresponding alarm prompt according to the prompt type.
Optionally, the alarm module is an audible and visual alarm.
Optionally, the ranging module includes at least one ranging device disposed on the charged object, and the ranging device is one or more of an ultrasonic ranging probe, a laser ranging probe and an infrared ranging probe.
Optionally, the distance measuring device is arranged on a power supply line of the tower pole; the transmitting direction of the detection signal of the distance measuring device is aligned to the ground, and the transmitting path of the detection signal is perpendicular to the ground.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a safety distance early warning method and a safety distance early warning system, which achieve the purpose of monitoring whether an operator exceeds a safety distance limit or not by monitoring the distance between an obstacle and a charged object, and carry out grading alarm when the obstacle is monitored to exceed a safety distance range so as to warn the operator exceeding the safety distance range, thereby achieving the purpose of protecting the personal safety of the operator.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a flowchart of a safety distance early warning method provided by the present invention;
fig. 2 is a block diagram of a safety distance early warning system provided in the present invention.
In the above figures: 10. a distance measurement module; 20. a control module; 30. and an alarm module.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. 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 technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The invention aims to provide a safety distance early warning method and a safety distance early warning system, which are used for warning an operator exceeding the limit of a safety distance range so as to avoid safety accidents caused by the fact that the operator continuously approaches a charged object.
Referring to fig. 1, an embodiment of the present invention provides a safety distance early warning method, including the following steps:
and S1, presetting a prompt index template, wherein the prompt index template comprises a safe distance range and an alarm prompt index.
The alarm prompt indexes comprise early warning indexes and alarm indexes, and are used for distinguishing alarm strength according to the distance between the operator and a charged object when the operator crosses a safe distance range, so that the alarm effect is more targeted.
The early warning index is a first warning level distance between the obstacle and the charged object when the early warning index exceeds the safe distance range, the warning index is a second warning level distance between the obstacle and the charged object when the early warning index exceeds the safe distance range, and the second warning level distance is smaller than the first warning level distance.
The safe distance range, the early warning index and the warning index need to be set according to different line voltage value grades. In this embodiment, a line with a voltage value of 10KV is taken as an example, the early warning index is 1000mm, and the warning index is 700 mm. In addition, for the lines of 35KV, 110KV, 220KV and 500KV, the alarm index and the early warning index can be respectively set to be 1000mm and 1300mm, 1500mm and 1900mm, 3000mm and 3600mm, 5000mm and 6000mm, and the specific numerical value setting can be adjusted according to actual requirements.
It can be understood that, in the above-mentioned early warning index and warning index, as long as the distance between the operator and the charged object is greater than the early warning index, it indicates that the operator is within the safe distance range.
S2, acquiring a first distance between the obstacle and the charged object under t 1; determining whether the first distance exceeds a safe distance range according to a prompt index template; if yes, determining the corresponding prompt type according to the alarm prompt index.
The t1 is the first time in the current state.
In the step, the distance measurement module is controlled to send the detection signal in real time and receive the detection feedback signal fed back, the detection feedback signal received by the distance measurement module is obtained, the current distance value between the obstacle and the charged object is calculated according to the detection feedback signal, and the current distance value is set as the first distance.
When the first distance does not exceed the safe distance range, no reaction is needed; when the first distance exceeds the safe distance range, according to the alarm prompt index in the prompt index template preset in step S1, it is determined whether the first distance is within the early warning index range or within the alarm index range.
In this embodiment, taking a 10KV line as an example, when the first distance is equal to or less than 1000mm, it indicates that the current operator has entered the range of the early warning index; when the first distance is equal to or less than 700mm, the current operator is indicated to be within the range of the alarm index.
It will be appreciated that the first distance measurement criteria may be any body part of the operator, or may be a tool carried by the operator.
S3, acquiring a second distance between the obstacle and the charged object under t 2; determining whether the second distance exceeds the safe distance range according to the prompt index template; if yes, determining the corresponding prompt type according to the alarm prompt index.
T2 is a second time after the unit time interval has elapsed from the first time t 1.
In the step, the distance measuring module is controlled to send the detection signal in real time and receive the detection feedback signal fed back, then the current distance value between the obstacle and the charged object is calculated according to the detection feedback signal, and the current distance value is set as the second distance.
When the second distance does not exceed the safe distance range, no reaction is needed; when the second distance exceeds the safe distance range, according to the alarm prompt index in the prompt index template preset in step S1, it is determined whether the second distance is within the early warning index range or within the alarm index range.
In this embodiment, taking a 10KV line as an example, when the second distance is equal to or less than 1000mm, it indicates that the current operator has entered the range of the early warning index; when the second distance is equal to or less than 700mm, the current operator is indicated to be within the range of the alarm index.
It will be appreciated that the second distance measurement criteria may be any body part of the operator, or may be a tool carried by the operator.
And S4, executing corresponding alarm prompt according to the prompt type.
In this step, the alarm prompt may be one of an alarm sound prompt or a warning light prompt, or may be an audible and visual alarm combining the alarm sound prompt and the warning light.
The alarm prompt corresponding to the early warning index comprises a first-stage early warning prompt and a second-stage early warning prompt. When the first distance/the second distance meets the early warning index, starting a first-level early warning prompt; and when the first distance and the second distance meet the early warning index at the same time, starting secondary early warning prompt.
It can be understood that the first-level early warning prompt is started as long as the first distance meets the early warning index; on the premise that the first distance meets the early warning index, if the second distance also meets the early warning index, a secondary early warning prompt is started to strengthen warning for operators and remind the operators to retreat as soon as possible to keep away from the charged objects. If the second distance does not meet the early warning index, the second distance is in the range of the early warning index, or enters the safe distance range, or enters the warning index range, and corresponding warning prompt is carried out according to the actual situation.
Specifically, in this embodiment, the primary early warning prompt is an audible and visual alarm once every 0.5S, and prompts for three times; the secondary early warning prompt is 0.5S once acousto-optic warning, and is used for reminding in a continuous mode.
The alarm prompts corresponding to the alarm indexes comprise a first-level alarm prompt and a second-level alarm prompt; when the first distance/the second distance meets the alarm index, starting a first-level alarm prompt; and when the first distance and the second distance simultaneously meet the alarm index, starting a secondary alarm prompt.
It can be understood that the first-level alarm prompt is started as long as the first distance meets the alarm index; and on the premise that the first distance meets the alarm index, if the second distance also meets the alarm index, starting a secondary alarm prompt to strengthen the alarm of the operating personnel and remind the operating personnel to retreat as soon as possible to keep away from the charged objects. If the second distance does not meet the alarm index, the second distance is in the range of no alarm index any more, or enters the safe distance range, or enters the early warning index range, and corresponding alarm prompt is carried out according to the actual situation.
Specifically, in this embodiment, the primary alarm prompt is a 0.5S sound-light alarm, and is continuously performed for 3S; the secondary alarm prompt is 0.3S once acousto-optic alarm and is reminded in a continuous mode.
Referring to fig. 2, the present embodiment provides a safety distance warning system based on the above embodiments, including: ranging module 10, control module 20 and alarm module 30. The specific functions of each module are as follows:
the ranging module 10 is configured to send a detection signal at a preset ranging time interval and receive a detection feedback signal fed back. Wherein, this range finding module 10 includes that at least one sets up the range unit on electrified thing, and range unit is the range finding probe, specifically is one or more in ultrasonic ranging probe, laser ranging probe and the infrared ranging probe.
In this embodiment, the distance measuring module 10 will be described with the power supply line on the tower as the charged object. In this embodiment, the distance measuring device is arranged on the power supply line of the tower pole, and the distance measuring probes with the number not less than the total number of the two ends of the inlet and outlet wires are installed. When the device is arranged, the emission direction of a detection signal of the distance measuring device is aligned to the ground, and the emission path of the detection signal is vertical to the ground; the distance measuring probe is 700mm away from the vertical line of the electric pole, each distance measuring probe works independently, and an alarm module 30 is distributed for each distance measuring probe independently.
The control module 20, the connection mode of the control module 20 and the distance measuring probe can use two modes, one is through wireless connection, the connection mode is radio frequency/WIF I; one is wired and is first connected to the control module 20 via a 485 cable. In addition, the control module 20 may be a single chip microcomputer to implement its functions.
And the alarm module 30 is used for executing corresponding alarm prompt according to the prompt type. Specifically, each alarm module 30 corresponds to one distance measuring probe independently, and the alarm modules 30 and the distance measuring probes are in one-to-one unique correspondence. Wherein, the alarm module 30 is an audible and visual alarm.
Specifically, the control module 20 is configured to: presetting a prompt index template; calculating a current distance value between the obstacle and the charged object according to the detection feedback signal; determining whether the current distance value between the obstacle and the charged object exceeds a safe distance range or not according to the prompt index template; and determining the corresponding prompt type according to the alarm prompt index.
In addition, the control module 20 is connected to the alarm module 30 by a wired connection, and is used for controlling the alarm module 30 to alarm in a power-on and power-off manner.
Based on the above embodiment, the safety distance early warning method and system provided by the invention have the following advantages:
1. the safety protection device is used for guaranteeing the safety of field ascending operators. When the electric power operation personnel ascend the height for operation, the early warning can be carried out when the trend of exceeding the safe distance exists, and the direct warning is given when the height of exceeding the safe distance, so that the operation personnel is reminded to keep the safe working distance.
2. The method is used for safety training of electric power operators. In the electric power system training for train operation personnel safety consciousness, install this equipment on uncharged circuit, let training personnel cut the body experience and experience the safe distance of each electric power level, and then train good working habit.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A safety distance early warning method is characterized by comprising the following steps:
presetting a prompt index template, wherein the prompt index template comprises a safe distance range and an alarm prompt index;
acquiring a first distance between an obstacle and a charged object at a first time t 1; determining whether the first distance exceeds the safe distance range according to the prompt index template; if yes, determining a corresponding prompt type according to the alarm prompt index;
executing corresponding alarm prompt according to the prompt type;
the obstacle is an operator or an article on the operator.
2. The safety distance early warning method according to claim 1, further comprising:
acquiring a second distance between the obstacle and the charged object at a second time t 2; determining whether the second distance exceeds the safe distance range according to the prompt index template; if yes, determining a corresponding prompt type according to the alarm prompt index;
wherein the second time t2 is later than the first time t 1.
3. The safety distance early warning method according to claim 2, wherein the alarm prompt index comprises an early warning index, the early warning index is a first alarm level distance between an obstacle and a charged object when the safety distance range is exceeded, and the alarm prompt corresponding to the early warning index comprises a first-level early warning prompt and a second-level early warning prompt;
when the first distance/the second distance meets an early warning index, starting a first-level early warning prompt;
and when the first distance and the second distance simultaneously meet the early warning index, starting secondary early warning prompt.
4. The safety distance early warning method according to claim 3, wherein the alarm prompt indicators further comprise alarm indicators, the alarm indicators are second alarm level distances between the obstacles and the charged objects when the safety distance range is exceeded, and the second alarm level distances are smaller than the first alarm level distances; the alarm prompts corresponding to the alarm indexes comprise a first-level alarm prompt and a second-level alarm prompt;
when the first distance/the second distance meets an alarm index, starting a first-level alarm prompt;
and when the first distance and the second distance simultaneously meet the alarm index, starting a secondary alarm prompt.
5. The safety distance early warning method according to claim 2, wherein the first distance/second distance obtaining method comprises:
the control distance measurement module sends detection signals in real time and receives detection feedback signals fed back; and calculating the current distance value between the obstacle and the charged object according to the detection feedback signal.
6. The safety distance early warning method according to claim 1, wherein the type of the alarm prompt comprises one or more of an alarm sound prompt and a warning light prompt.
7. A safety distance early warning system, comprising:
the ranging module is used for sending a detection signal at a preset ranging time interval and receiving a detection feedback signal fed back;
a control module to: presetting a prompt index template; calculating a current distance value between the obstacle and the charged object according to the detection feedback signal; determining whether the current distance value between the obstacle and the charged object exceeds the safe distance range or not according to the prompt index template; determining a corresponding prompt type according to the alarm prompt index;
and the alarm module is used for executing corresponding alarm prompt according to the prompt type.
8. The safety distance pre-warning system of claim 7, wherein the alarm module is an audible and visual alarm.
9. The safety distance early warning system of claim 8, wherein the ranging module comprises at least one ranging device arranged on a charged object, and the ranging device is one or more of an ultrasonic ranging probe, a laser ranging probe and an infrared ranging probe.
10. The safety distance early warning system of claim 9, wherein the distance measuring device is disposed on a power supply line of a tower pole; the transmitting direction of the detection signal of the distance measuring device is aligned to the ground, and the transmitting path of the detection signal is perpendicular to the ground.
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| CN201911129529.2A CN111009098A (en) | 2019-11-18 | 2019-11-18 | Safety distance early warning method and system |
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| CN113066258A (en) * | 2021-04-02 | 2021-07-02 | 国家电网有限公司 | Warning structure applied to overhaul site in transformer substation and use method thereof |
| CN113796614A (en) * | 2021-09-17 | 2021-12-17 | 广东电网有限责任公司江门供电局 | Multifunctional safety helmet with detachable near-electricity alarm device |
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Application publication date: 20200414 |