CN113280814B - Safety monitoring method and equipment for park operators - Google Patents
Safety monitoring method and equipment for park operators Download PDFInfo
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- CN113280814B CN113280814B CN202110657092.0A CN202110657092A CN113280814B CN 113280814 B CN113280814 B CN 113280814B CN 202110657092 A CN202110657092 A CN 202110657092A CN 113280814 B CN113280814 B CN 113280814B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
- G01C21/10—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration
- G01C21/12—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning
- G01C21/16—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
- G01C21/165—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by using measurements of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation combined with non-inertial navigation instruments
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/47—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being an inertial measurement, e.g. tightly coupled inertial
Abstract
The embodiment of the specification discloses a safety monitoring method and equipment for park operators. The method is used for solving the problems that whether the operators have accidents or not cannot be found in time in the prior art, and the best period of rescue operators is easy to delay. The scheme comprises the following steps: acquiring the position information of the operator through communication among the reference station, the positioning beacon and the positioning module, and generating a moving track of the operator according to the time sequence of acquiring the position information; determining the state information of the operator through the navigation information corresponding to the positioning terminal fed back by the inertial navigation module; and monitoring the safety of the operator according to the moving track and/or the state information.
Description
Technical Field
The invention relates to the technical field of safety monitoring, in particular to a safety monitoring method and equipment for park operators.
Background
With the progress and development of society, the safety of operators and how to monitor the safety of operators in a campus are receiving more and more social attention. In order to improve the operation progress and efficiency in the garden, the operation personnel may increase the operation intensity, and the safety accident may occur in the operation process, thereby causing personal injury.
At present, safety monitoring is mainly carried out on operators in a park by means of video monitoring, but video monitoring still has some problems, for example, if a supervisor observing monitoring does not find an accident in time, the best opportunity for rescuing the operators is easily delayed.
Disclosure of Invention
One or more embodiments of the present specification provide a method and apparatus for monitoring the safety of campus operators. The method is used for solving the following technical problems: in the prior art, whether the accident happens to the operator or not cannot be found in time, and the problem of easily delaying the optimal period of rescuing the operator is solved.
To solve the above technical problems, one or more embodiments of the present specification are implemented as follows:
in one aspect, one or more embodiments of the present disclosure provide a method for monitoring safety of a worker in a campus, where the safety monitoring of the worker is implemented by a worker positioning system, the worker positioning system includes a reference station installed outdoors and a positioning beacon installed indoors, the positioning terminal carried by the worker includes a positioning module and an inertial navigation module, and the method includes:
acquiring the position information of the operator through communication among the reference station, the positioning beacon and the positioning module, and generating a moving track of the operator according to the time sequence of acquiring the position information;
determining the state information of the operator through the navigation information corresponding to the positioning terminal fed back by the inertial navigation module;
and monitoring the safety of the operator according to the moving track and/or the state information.
In the embodiment of the application, the positioning terminal is arranged on the safety helmet;
the step of acquiring the position information of the operator through the communication among the reference station, the positioning beacon and the positioning module specifically comprises the following steps:
if the positioning terminal is located outdoors, acquiring the position information of the operator through communication between the reference station and the positioning module;
if the positioning terminal is in the room, acquiring the position information of the operator through communication between the positioning beacon and the positioning module;
the reference stations comprise carrier phase differential RTK reference stations, and the positioning beacons comprise Bluetooth positioning beacons, ultra-wideband UWB positioning beacons and Wi-Fi positioning beacons.
In this embodiment of the present application, the information types in the navigation information include at least an inclination angle, an acceleration, and a height;
the method for determining the state information of the operator through the navigation information corresponding to the positioning terminal fed back by the inertial navigation module specifically comprises the following steps:
determining that at least two detection values are abnormal in navigation information corresponding to the positioning terminal fed back by the inertial navigation module;
and determining the state information closest to the operator currently in a plurality of pre-stored state information according to the information type and the degree of abnormality corresponding to the detection value of the abnormality.
In this embodiment of the present application, the determining, according to the information type and the abnormality degree corresponding to the detected value of the abnormality, the state information closest to the operator currently in the pre-stored plurality of state information specifically includes:
establishing a three-dimensional coordinate system through the inertial navigation module;
if the difference between the inclination angle of the operator and the Z axis in the three-dimensional coordinate system and the standard value is larger than a first preset angle and the acceleration value is larger than a first preset value, determining that the operator is in a first dangerous state, wherein the inclination angle is determined by the operator along the direction opposite to the facing direction;
if the difference between the inclination angle and the standard value along any axis in the three-dimensional coordinate system is larger than a second preset angle and the acceleration value is larger than a second preset value, determining that the operator is in a second dangerous state, wherein the second preset value is larger than the first preset value;
and if the difference value between the inclination angle and the standard value along any axis in the three-dimensional coordinate system is larger than a first preset angle, the acceleration value is larger than a first preset value, and the height is reduced to reach a preset height, determining that the operator is in a third dangerous state.
In this embodiment of the present application, if the difference between the inclination angle along any axis in the three-dimensional coordinate system and the standard value is greater than a second preset angle, and the acceleration value is greater than a second preset value, after determining that the operator is in a second dangerous state, the method further includes:
continuously collecting the change conditions of the inclination angle and the acceleration value;
if the change conditions of the inclination angle and the acceleration value are regular changes, replacing the second dangerous state with a first safe state;
and if the inclination angle is recovered to a range near the standard value within a first preset time period and the acceleration value is recovered to be smaller than the second preset value within the first preset time period, replacing the second dangerous state with a second safe state.
In this embodiment of the present application, determining, by using the navigation information corresponding to the positioning terminal and fed back by the inertial navigation module, the status information of the operator specifically includes:
setting an electronic fence in a part of areas in the park in advance;
and in the area corresponding to the electronic fence, determining that the navigation information and/or the position information of the operator are unchanged within a second preset duration, and sending an alarm through the positioning terminal.
In this embodiment of the present application, the determining, by using the navigation information corresponding to the positioning terminal and fed back by the inertial navigation module, the status information of the operator specifically includes:
dividing a partial area in the park into dangerous areas in advance;
determining a coordinate set corresponding to the dangerous area, and determining a coordinate subset corresponding to an access of the dangerous area in the coordinate set;
judging whether the corresponding coordinates of the operator in the moving process are in the coordinate set or not;
if not, determining that the nearest distance between the first coordinate and each coordinate in the coordinate subset is smaller than a preset distance, and gradually shrinking the nearest distance in the moving process;
and determining that the operator is in a fourth dangerous state.
In an embodiment of the present application, before the determining that the operator is in the fourth dangerous state, the method further includes:
determining a historical movement track of the operator;
and determining that the operator reaches the dangerous area according to the historical movement track, wherein the similarity between the historical movement track and the movement track corresponding to the movement process is higher than a preset threshold.
In an embodiment of the present application, after the obtaining the position information of the operator through communication among the reference station, the positioning beacon and the positioning module, the method further includes:
determining a plurality of management areas pre-divided within the campus;
determining a personnel configuration upper limit corresponding to each management area according to each management area, and determining the number of personnel in the management area according to the position information corresponding to each worker;
and if the number of the personnel exceeds the personnel configuration upper limit, sending a prompt to the operators at least in part in the management area through the positioning terminal so as to realize personnel scheduling.
On the other hand, one or more embodiments of the present specification provide a safety monitoring device for a campus worker, the safety monitoring of the worker is realized through a personnel positioning system, the personnel positioning system includes a reference station erected outdoors and a positioning beacon arranged indoors, the positioning terminal carried by the worker includes a positioning module and an inertial navigation module, and the device includes:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the following instructions:
acquiring the position information of the operator through communication among the reference station, the positioning beacon and the positioning module, and generating a moving track of the operator according to the time sequence of acquiring the position information;
determining the state information of the operator through the navigation information corresponding to the positioning terminal fed back by the inertial navigation module;
and monitoring the safety of the operator according to the moving track and/or the state information.
The application provides a safety monitoring method and equipment for park operators, which can bring the following beneficial effects:
the personnel positioning system is provided with an outdoor reference station and an indoor positioning beacon, can position the position of an operator indoors and outdoors through different positioning methods, acquires position information, and improves positioning accuracy. And moreover, the state information of the operator can be acquired through the inertial navigation module, and whether the current state of the operator is a safe state or not is judged according to the acquired position information and state information of the operator, so that the safety of the operator is monitored, and the operator in a dangerous state can be timely found.
Drawings
In order to more clearly illustrate the embodiments of the present description or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some of the embodiments described in the present description, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow diagram of a method for monitoring safety of a campus worker according to one or more embodiments of the present disclosure;
FIG. 2 is a logic diagram for determining a dangerous condition according to one or more embodiments of the present disclosure;
FIG. 3 is a logic diagram illustrating a determination of a false positive of a dangerous condition according to one or more embodiments of the present disclosure;
fig. 4 is a schematic structural diagram of a safety monitoring device for a campus worker according to one or more embodiments of the present disclosure.
Detailed Description
The embodiment of the application provides a safety monitoring method and equipment for park operators.
In order to make the technical solutions in the present specification better understood by those skilled in the art, the technical solutions in the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
In order to solve the problems mentioned in the background art, the embodiments of the present disclosure provide a method and an apparatus for monitoring safety of a campus worker, which are applied to a personnel positioning system. The personnel positioning system comprises a reference station, a positioning beacon and a positioning terminal.
The reference station is set by a carrier phase difference technology (RTK), the RTK is a difference method for processing the observed quantity of the carrier phases of the two measuring stations in Real time, and the carrier phases acquired by the reference station are sent to the user receiver to calculate the coordinates by difference. The working efficiency can be greatly improved.
The positioning beacons include bluetooth positioning beacons, ultra Wideband (UWB) positioning beacons, wi-Fi positioning beacons. UWB technology is a wireless carrier communication technology, which does not use a sinusoidal carrier, but uses non-sinusoidal narrow pulses of nanosecond order to transmit data, so that the frequency spectrum occupied by the UWB technology is wide. The UWB technology has the advantages of low system complexity, low power spectrum density of the transmitted signal, insensitivity to channel fading, low interception capability, high positioning accuracy and the like, and is particularly suitable for high-speed wireless access in indoor and other dense multipath places.
The positioning terminal is arranged on the safety helmet and/or the employee card, wherein the inertial navigation module is inconvenient to install due to the small size of the employee card, and only the positioning module is installed.
The position information of the operators in the park can be accurately obtained through different positioning methods indoors and outdoors, a moving track can be generated, and real-time safety monitoring is carried out on the operators in the park. The state information of the operator is determined by detecting the inclination angle, the acceleration value, the height and the like of the operator, the safety of the operator is monitored through the moving track of the operator, and an alarm can be sent out timely when the operator is in a dangerous state, so that the manager can rescue timely.
The following describes in detail the technical solutions provided by the embodiments of the present specification with reference to the accompanying drawings.
Fig. 1 is a schematic flow diagram of a method for monitoring safety of a campus worker according to one or more embodiments of the present disclosure, where the method shown in fig. 1 may include the following steps:
s101: and acquiring the position information of the operator through communication among the reference station, the positioning beacon and the positioning module, and generating the moving track of the operator according to the time sequence of acquiring the position information.
The positioning terminal carried by the operator can be arranged on the safety helmet and the staff card. Taking a safety helmet as an example, a switch is arranged on the safety helmet, and an operator controls the start and stop of the positioning module by operating the switch. The reference station and the positioning beacon can communicate with the positioning module, acquire the position information of the operator in real time, and connect the position information in series according to the time sequence of the acquired position information to generate the movement track of the operator. It should be noted that no matter the operator is the personnel in the park or the external personnel entering the park, the operator can acquire the position information of the operator through the personnel positioning system as long as the operator wears the safety helmet. The position information is the coordinates of the current position of the operator.
S102: and determining the state information of the operator through the navigation information corresponding to the positioning terminal fed back by the inertial navigation module.
In one or more embodiments of the present disclosure, the navigation information refers to physical information of the positioning terminal generated by the inertial navigation module in the navigation process in space, including, for example, an inclination angle, an acceleration, and a height. The status information refers to a safe status or dangerous status of the person. For example, if an abnormality is detected in a certain navigation information, it represents that the person may be in a dangerous state and need to be rescued.
S103: and monitoring the safety of the operator according to the movement track and/or the state information.
The state information is obtained according to the navigation information, and if the navigation information is abnormal, the personnel may be in dangerous state.
The park is internally provided with a plurality of dangerous areas which can be accessed only by the authorities, and if a certain operator does not have the authorities to access the dangerous areas, the moving track displays that the operator accesses the dangerous areas, and the operator is determined to be in a dangerous state.
If a worker does not enter a dangerous area, the obtained moving track of the worker shows that the worker walks back and forth a plurality of times on a certain road section, and the worker is judged to be in a dangerous state at the moment, and the worker possibly gets lost.
In one or more embodiments of the present disclosure, the indoor and outdoor requirements for the strength of the communication signal are different, and if the positioning terminal is outdoor, the position information of the operator is obtained through the communication between the reference station and the positioning module; if the positioning terminal is in the room, acquiring the position information of the operator through communication between the positioning beacon and the positioning module; the reference station comprises a carrier phase differential RTK reference station, and the positioning beacons comprise a Bluetooth positioning beacon, an ultra-wideband UWB positioning beacon and a Wi-Fi positioning beacon.
Specifically, the indoor and outdoor requirements for the strength of the communication signal are different, for example, the outdoor space is larger, the number of obstacles is smaller, the space is wide, and the signal obstruction is smaller, so that when the position information of the operator is acquired outdoors, the RTK is selected. When the position information of the operator is acquired outdoors, satellite communication may be used. The indoor space is relatively small, the obstacles are more, the signal obstruction is stronger, and the indoor position information of the operator can be obtained by using the RTK, so that the condition that the positioning is inaccurate or the position information can not be obtained because of weak signals can be caused, therefore, bluetooth, UWB, WI-FI, zigBee and the like are used when the position information of the operator is obtained indoors, and in addition, the interval-level positioning can be carried out on the operator by using radio frequency identification (Radio Frequency Identification, RFID) RFID, wherein the interval-level positioning refers to the position interval of the operator.
In one or more embodiments of the present disclosure, if there is only one abnormality in the detected navigation information, the false alarm rate is high, for example, the operator leans back slowly on a plane with an inclination angle, where the inclination angle may be high, but the acceleration value is small, and is not a state of falling backward, based on this, when at least two detected values are detected to be abnormal, it is considered that the state of the operator is likely to be in a dangerous state, and the state information closest to the operator is determined in the prestored state information according to the type and degree of abnormality corresponding to the detected value having the abnormality.
Specifically, the inertial navigation module comprises a gyroscope, an accelerometer and a barometer, wherein the gyroscope can detect the inclination angle of an operator, the accelerometer can detect the acceleration value of the operator, and the barometer can detect the ascending or descending height of the operator.
The standard value of the inclination angle and the normal range of the acceleration value are stored in the positioning terminal, and the maximum range of the height change in the instantaneous time is also stored. If only one of the inclination angle, the acceleration value and the height is abnormal, the operator is considered to be in a safe state, and when at least two detection values are abnormal, the operator is considered to be in a dangerous state.
The positioning terminal is also pre-stored with state information, and when the positioning terminal detects that at least two detection values are abnormal, the state information of the corresponding operator can be determined according to the information types of the at least two detection values with the abnormality and the abnormality degree. The abnormal degree is the difference between the inclination angle and the standard value, the difference between the detected acceleration value and the normal acceleration value range, and the difference between the instantaneous descending height and the normal value. The pre-stored state information is determined according to different information types in the navigation information and the degree of abnormality corresponding to each information type, and the different state information corresponds to different dangerous states.
The pre-stored state information may only include a backward falling, a falling slip, a slow falling, etc., but in an actual process, more kinds of state information of the operator may occur, such as a backward falling, and in the pre-stored state information, the state information closest to the backward falling is the backward falling, and then the operator is determined to be the backward falling.
Further, a three-dimensional coordinate system is established through an inertial navigation module; if the difference between the inclination angle of the operator and the Z axis in the three-dimensional coordinate system and the standard value is larger than a first preset angle and the acceleration value is larger than a first preset value, determining that the operator is in a first dangerous state, wherein the inclination angle is determined by the operator along the direction opposite to the facing direction; if the difference between the inclination angle along any axis in the three-dimensional coordinate system and the standard value is larger than a second preset angle and the acceleration value is larger than a second preset value, determining that the operator is in a second dangerous state, wherein the second preset value is larger than the first preset value; if the difference between the inclination angle along any axis in the three-dimensional coordinate system and the standard value is larger than the first preset angle, the acceleration value is larger than the first preset value, and the height is reduced to reach the preset height, the operator is determined to be in a third dangerous state.
As shown in fig. 2, the difference between the inclination angle of the operator and the Z-axis in the three-dimensional coordinate system and the standard value is greater than 45 degrees, and the acceleration value is greater than a first preset value, so as to determine that the operator falls in a first dangerous state. And when the difference between the inclination angle along any axis in the three-dimensional coordinate system and the standard value is larger than 30 degrees and the acceleration value is larger than a second preset value, determining that the operator falls and slides down in a second dangerous state. If the difference between the inclination angle along any axis in the three-dimensional coordinate system and the standard value is greater than 30 degrees, and the acceleration value is greater than the first preset value, and the height is reduced by 0.5 meter, the operator is determined to fall slowly in a third dangerous state. After determining the dangerous state of the operator, the positioning terminal can send an alarm and the position information of the operator to the management terminal, wherein the management terminal is a mobile phone terminal or a computer terminal capable of checking the safety state of the operator.
In one or more embodiments of the present description, the determined dangerous condition is likely to be a false positive. Continuously collecting the change conditions of the inclination angle and the acceleration value; if the change conditions of the inclination angle and the acceleration value are regular changes, replacing the second dangerous state with the first safe state; and if the inclination angle is restored to a range near the standard value within the first preset time period and the acceleration value is restored to be smaller than the second preset value within the first preset time period, replacing the second dangerous state with the second safe state.
As shown in fig. 3, the difference between the inclination angle along any axis in the three-dimensional coordinate system and the standard value is 30 degrees, and the difference between the inclination angle on the same axis and the standard value varies back and forth by 30 degrees. Similarly, the acceleration value also changes back and forth within a range, and the change conditions of the inclination angle and the acceleration value are determined to be regular changes. At this time, the second dangerous state is considered as false alarm, and the second dangerous state is replaced with the first safe state. The first safety state may be triggered by the operator running or working on a swing-regular platform.
Because the inclination angle measured each time may have a corresponding error, the inclination angle is restored to a range near the standard value within the first preset time period, and the acceleration value is restored to be smaller than the second preset value within the first preset time period, so that the second dangerous state is replaced by the second safe state. The range around the standard value means a range which is not much different from the standard, for example, when the standard value is 5 degrees, the range around the standard value means 3 degrees to 7 degrees.
The second security state may be subdivided into two security states according to the difference in the first preset duration. For example, when the first preset duration is 3 seconds, the inclination angle is changed from the standard value to other angles, the other angles are restored to the range near the standard value, the acceleration value is restored to be smaller than the second preset value, and it is determined that the worker wears or removes the safety helmet. And when the first preset time period is 1 second, determining that the operator collides with the object.
The first dangerous state, the second dangerous state, the third dangerous state, the first safe state, and the second safe state are only described by way of example, and the first dangerous state, the second dangerous state, the third dangerous state, the first safe state, and the second safe state are not only the above states.
In one or more embodiments of the present disclosure, a plurality of areas are divided in a campus, and an electronic fence is set in advance in a part of the areas in the campus; in the area corresponding to the electronic fence, determining that the navigation information and/or the position information of the operator are unchanged within a second preset duration, and sending an alarm through the positioning terminal.
The regions divided in the park comprise rest regions, operation regions and the like, part regions where the electronic fence is arranged can be the rest regions or the operation regions, if the region corresponding to the electronic fence is the rest region, the change of the inclination angle, the acceleration and the height is not detected within the second preset time period, and the coordinates of an operator are not changed, at the moment, the operator is likely to fall asleep or be dangerous within the rest region, and an alarm is sent out through the positioning terminal. If the area corresponding to the electronic fence is an operation area and the change of the inclination angle, the acceleration and the height is not detected in the second preset time period, and the coordinates of an operator are not changed, at this time, the operator possibly generates danger because of operation, and sends an alarm through the positioning terminal so as to facilitate the manager to rescue the operator in time. It should be noted that, the second preset time period corresponding to the rest area is longer than the second preset time period corresponding to the operation area.
In one or more embodiments of the present description, a plurality of areas are divided in a campus, and a partial area in the campus is divided into dangerous areas in advance; the method comprises the steps that an operator in a dangerous area has higher operation danger, a coordinate set corresponding to the dangerous area is determined, and a coordinate subset corresponding to an entrance and an exit of the dangerous area is determined in the coordinate set; judging whether the corresponding coordinates of the operator in the moving process are in a coordinate set or not; if not, determining that the nearest distance between the coordinates and each coordinate in the coordinate subset is smaller than the preset distance, and gradually shrinking the nearest distance in the moving process; and determining that the operator is in a fourth dangerous state.
Since the entrance and exit to and from the dangerous area must pass through the entrance and exit of the dangerous area, determining the shortest distance between the operator and the entrance and exit of the dangerous area and the trend of the shortest distance can determine whether the operator will enter the dangerous state. And determining a coordinate subset corresponding to the entrance and the exit of the dangerous area, determining the nearest distance between the corresponding coordinate of the operator in the moving process and each coordinate in the coordinate subset, and judging the nearest distance between the operator and the entrance and the exit of the dangerous area. Wherein, the corresponding coordinates of the operator are changed in the moving process, and the nearest distance between the operator and the entrance of the dangerous area is also changed. The gradual decrease of the nearest distance means not only that the distance is decreased at all times, but also that the overall trend is gradually decreased. The fourth dangerous state is a state in which the worker is about to enter the dangerous area.
In one or more embodiments of the present disclosure, a historical movement track of an operator is determined, the historical movement track of the operator is stored in a positioning system, it is determined that the operator has arrived at a dangerous area according to the historical movement track, and a similarity between the historical movement track and a movement track corresponding to a movement process is higher than a preset threshold.
For example, when the similarity between the movement track corresponding to the current movement process of the operator and the historical movement track reaching the dangerous area is higher than eighty percent, the operator is likely to enter the dangerous area.
In one or more embodiments of the present specification, a plurality of management areas are divided in advance among a plurality of areas divided in a campus, and for each management area, an upper limit of personnel allocation corresponding to the management area is determined, where the upper limit of personnel allocation refers to the number of jobs that the management area can accommodate at most without impeding safety management and job progress. Determining the number of people in the management area through the position information corresponding to each worker; and if the number of the personnel exceeds the personnel configuration upper limit, sending a prompt to the operators at least partially in the management area through the positioning terminal so as to realize personnel scheduling. The operation safety of each management area is guaranteed.
In one or more embodiments of the present disclosure, the gardens are classified into a plurality of types, and hazardous areas may leak toxic gases for relatively hazardous parks such as chemical parks. The air safety condition of the environment where the operating personnel is located is detected through the gas probe arranged on the safety helmet, and the operating personnel is prompted when toxic gas is detected. The operators are prevented from being in an environment filled with toxic gas for a long time, and the health is prevented from being damaged.
The personnel positioning system in the specification can also monitor whether the operation personnel are detained in the park in the time of working hours, and can acquire the identity information of the operation personnel detained in the park, determine whether the operation personnel are the personnel in the park, and if not, can send an alarm through the positioning terminal. In addition, the personnel positioning system can also mobilize cameras around the position information according to the position information of the operators, so that abnormal conditions of the operators can be checked conveniently.
Be provided with one key SOS alarm button on the safety helmet in this specification, the operating personnel of being convenient for can one key SOS when meetting danger.
The personnel positioning system in the specification is provided with the outdoor reference station and the indoor positioning beacon, so that the positions of operators can be positioned indoors and outdoors through different positioning methods, position information is obtained, and the positioning accuracy is improved. And moreover, the state information of the operator can be acquired through the inertial navigation module, and whether the current state of the operator is a safe state or not is judged according to the acquired position information and state information of the operator, so that the safety of the operator is monitored, and the operator in a dangerous state can be timely found.
Fig. 4 is a schematic structural diagram of a safety monitoring device for a campus worker according to one or more embodiments of the present disclosure.
As shown in fig. 4, a safety monitoring device for a campus operator realizes safety monitoring of the operator through a personnel positioning system, the personnel positioning system comprises a reference station erected outdoors and a positioning beacon arranged indoors, the positioning terminal carried by the operator comprises a positioning module and an inertial navigation module, and the device comprises:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the following instructions:
acquiring the position information of the operator through communication among the reference station, the positioning beacon and the positioning module, and generating a moving track of the operator according to the time sequence of acquiring the position information;
determining the state information of the operator through the navigation information corresponding to the positioning terminal fed back by the inertial navigation module;
and monitoring the safety of the operator according to the moving track and/or the state information.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.
The foregoing describes specific embodiments of the present disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
The foregoing is merely one or more embodiments of the present description and is not intended to limit the present description. Various modifications and alterations to one or more embodiments of this description will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of one or more embodiments of the present description, is intended to be included within the scope of the claims of the present description.
Claims (9)
1. The utility model provides a safety monitoring method of garden operating personnel, its characterized in that realizes operating personnel's safety monitoring through personnel positioning system, personnel positioning system includes the standard station of setting up outdoor, sets up the location beacon in indoor, the positioning terminal that operating personnel carried, positioning terminal includes positioning module, inertial navigation module, the method includes:
acquiring the position information of the operator through communication among the reference station, the positioning beacon and the positioning module, and generating a moving track of the operator according to the time sequence of acquiring the position information;
determining the state information of the operator through the navigation information corresponding to the positioning terminal fed back by the inertial navigation module;
monitoring the safety of the operator according to the moving track and/or the state information;
the information types in the navigation information at least comprise inclination angle, acceleration and height;
the method for determining the state information of the operator through the navigation information corresponding to the positioning terminal fed back by the inertial navigation module specifically comprises the following steps:
determining that at least two detection values are abnormal in navigation information corresponding to the positioning terminal fed back by the inertial navigation module;
and determining the state information closest to the operator currently in a plurality of pre-stored state information according to the information type and the degree of abnormality corresponding to the detection value of the abnormality.
2. The method for monitoring the safety of campus operators according to claim 1, wherein the positioning terminal is arranged on a helmet;
the step of acquiring the position information of the operator through the communication among the reference station, the positioning beacon and the positioning module specifically comprises the following steps:
if the positioning terminal is located outdoors, acquiring the position information of the operator through communication between the reference station and the positioning module;
if the positioning terminal is in the room, acquiring the position information of the operator through communication between the positioning beacon and the positioning module;
the reference stations comprise carrier phase differential RTK reference stations, and the positioning beacons comprise Bluetooth positioning beacons, ultra-wideband UWB positioning beacons and Wi-Fi positioning beacons.
3. The method for monitoring the safety of a campus worker according to claim 1, wherein the determining, from a plurality of pre-stored state information, the state information closest to the worker at present according to the information type and the degree of abnormality corresponding to the detected value of the abnormality, specifically comprises:
establishing a three-dimensional coordinate system through the inertial navigation module;
if the difference between the inclination angle of the operator and the Z axis in the three-dimensional coordinate system and the standard value is larger than a first preset angle and the acceleration value is larger than a first preset value, determining that the operator is in a first dangerous state, wherein the inclination angle is determined by the operator along the direction opposite to the facing direction;
if the difference between the inclination angle and the standard value along any axis in the three-dimensional coordinate system is larger than a second preset angle and the acceleration value is larger than a second preset value, determining that the operator is in a second dangerous state, wherein the second preset value is larger than the first preset value;
and if the difference value between the inclination angle and the standard value along any axis in the three-dimensional coordinate system is larger than a first preset angle, the acceleration value is larger than a first preset value, and the height is reduced to reach a preset height, determining that the operator is in a third dangerous state.
4. A method of monitoring the safety of a campus worker according to claim 3, wherein if the difference between the inclination angle along any axis in the three-dimensional coordinate system and the standard value is greater than a second preset angle and the acceleration value is greater than a second preset value, the method further comprises, after determining that the worker is in a second dangerous state:
continuously collecting the change conditions of the inclination angle and the acceleration value;
if the change conditions of the inclination angle and the acceleration value are regular changes, replacing the second dangerous state with a first safe state;
and if the inclination angle is recovered to a range near the standard value within a first preset time period and the acceleration value is recovered to be smaller than the second preset value within the first preset time period, replacing the second dangerous state with a second safe state.
5. The method for monitoring the safety of the operators in the park according to claim 1, wherein the determining the status information of the operators through the navigation information corresponding to the positioning terminal fed back by the inertial navigation module specifically comprises:
setting an electronic fence in a part of areas in the park in advance;
and in the area corresponding to the electronic fence, determining that the navigation information and/or the position information of the operator are unchanged within a second preset duration, and sending an alarm through the positioning terminal.
6. The method for monitoring the safety of the operators in the park according to claim 1, wherein the determining the status information of the operators by the navigation information corresponding to the positioning terminal fed back by the inertial navigation module specifically comprises:
dividing a partial area in the park into dangerous areas in advance;
determining a coordinate set corresponding to the dangerous area, and determining a coordinate subset corresponding to an access of the dangerous area in the coordinate set;
judging whether the corresponding coordinates of the operator in the moving process are in the coordinate set or not;
if not, determining that the nearest distance between the coordinates and each coordinate in the coordinate subset is smaller than a preset distance, and gradually shrinking the nearest distance in the moving process;
and determining that the operator is in a fourth dangerous state.
7. The method of monitoring the safety of a campus worker according to claim 6, wherein prior to determining that the worker is in a fourth hazardous condition, the method further comprises:
determining a historical movement track of the operator;
and determining that the operator reaches the dangerous area according to the historical movement track, wherein the similarity between the historical movement track and the movement track corresponding to the movement process is higher than a preset threshold.
8. The method of claim 1, wherein after the obtaining location information of the operator via communication between the reference station, the location beacon, and the location module, the method further comprises:
determining a plurality of management areas pre-divided within the campus;
determining a personnel configuration upper limit corresponding to each management area according to each management area, and determining the number of personnel in the management area according to the position information corresponding to each worker;
and if the number of the personnel exceeds the personnel configuration upper limit, sending a prompt to the operators at least in part in the management area through the positioning terminal so as to realize personnel scheduling.
9. The utility model provides a safety monitoring equipment of garden operating personnel, its characterized in that realizes operating personnel's safety monitoring through personnel positioning system, personnel positioning system is including setting up at outdoor reference station, setting up the location beacon in the room, the positioning terminal that operating personnel carried, positioning terminal includes positioning module, inertial navigation module, equipment includes:
at least one processor; the method comprises the steps of,
a memory communicatively coupled to the at least one processor; wherein, the liquid crystal display device comprises a liquid crystal display device,
the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the following instructions:
acquiring the position information of the operator through communication among the reference station, the positioning beacon and the positioning module, and generating a moving track of the operator according to the time sequence of acquiring the position information;
determining the state information of the operator through the navigation information corresponding to the positioning terminal fed back by the inertial navigation module;
monitoring the safety of the operator according to the moving track and/or the state information;
the information types in the navigation information at least comprise inclination angle, acceleration and height;
the method for determining the state information of the operator through the navigation information corresponding to the positioning terminal fed back by the inertial navigation module specifically comprises the following steps:
determining that at least two detection values are abnormal in navigation information corresponding to the positioning terminal fed back by the inertial navigation module;
and determining the state information closest to the operator currently in a plurality of pre-stored state information according to the information type and the degree of abnormality corresponding to the detection value of the abnormality.
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| CN113784290B (en) * | 2021-09-10 | 2022-04-12 | 北京市计量检测科学研究院 | Early warning method and system for closed area based on electronic fence equipment |
| CN116797031B (en) * | 2023-08-25 | 2023-10-31 | 深圳市易图资讯股份有限公司 | Safety production management method and system based on data acquisition |
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| US10629048B2 (en) * | 2017-09-29 | 2020-04-21 | Apple Inc. | Detecting falls using a mobile device |
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| CN112116510A (en) * | 2020-08-03 | 2020-12-22 | 广东华云神舟科技股份有限公司 | Intelligent park management system and method based on Internet of things |
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| CN110399951A (en) * | 2019-07-26 | 2019-11-01 | 马鞍山市科泰电气科技有限公司 | A kind of monitoring management system and method for plant area staff motion track |
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