CN116626585A - Personnel positioning method, device and system - Google Patents
Personnel positioning method, device and system Download PDFInfo
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- CN116626585A CN116626585A CN202310620360.0A CN202310620360A CN116626585A CN 116626585 A CN116626585 A CN 116626585A CN 202310620360 A CN202310620360 A CN 202310620360A CN 116626585 A CN116626585 A CN 116626585A
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- 238000000034 method Methods 0.000 title claims abstract description 52
- 230000009471 action Effects 0.000 claims abstract description 44
- 230000007613 environmental effect Effects 0.000 claims abstract description 26
- 230000003993 interaction Effects 0.000 claims description 27
- 238000004891 communication Methods 0.000 claims description 26
- 230000006870 function Effects 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 description 6
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- 208000028698 Cognitive impairment Diseases 0.000 description 1
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Classifications
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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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
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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
- G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
- G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
- G01S11/06—Systems for determining distance or velocity not using reflection or reradiation using radio waves using intensity measurements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The present invention relates to the field of positioning and tracking, and in particular, to a method, apparatus and system for locating a person. Mainly comprises the following steps: the positioning equipment carried by the personnel to be positioned collects surrounding environment information and sends the environment information and the equipment identifier to the passing marking equipment; a plurality of marking devices are distributed in the interval where the personnel to be positioned possibly act, the marking devices acquire the action track of the positioning device according to the received environmental information and the device identifier, and the positioning device is judged to leave or enter the safety area according to the action track; when the positioning equipment enters the safety area, a positioning module on the positioning equipment is closed, and the personnel to be positioned are positioned according to the action track acquired by the marking equipment. The invention can improve the cruising ability of the positioning equipment and reduce the risk of losing the personnel to be positioned.
Description
Technical Field
The present invention relates to the field of positioning and tracking, and in particular, to a method, apparatus and system for locating a person.
Background
The impaired intellectual population mainly refers to the progressive cognitive function degradation caused by brain injury or disease, and the amplitude of the degradation is far higher than that of the population who is progressing to normal aging, and is more common to the population suffering from Alzheimer's disease. In the context of aging society, the population proportion of the people with impaired intelligence is continuously rising, which leads to a certain care pressure for society and families. Caregivers often have difficulty dealing with complex cognitive impairment symptoms and variable mental performance abnormalities and the resultant series of problems. The prevention of frailty of a person suffering from a mental disorder is one of the most important problems, for example, the crowd of people who are lost to the intelligence may leave the district or the gate of the senior citizen's institution following the visitor, or the people who are lost to the intelligence may go to a dangerous area in the public space by themselves, resulting in frailty of the people who are lost to the intelligence. On the other hand, in real life, there is also a risk of easy loss in special people such as aged people, children, down patients, mental disease patients, autism patients, and the like.
At present, a plurality of products can assist guardians to perform positioning searching after the lost personnel are lost, such as a loss-prevention bracelet, a satellite positioning action tracker, a positioning label based on a 4G/5G baseband and the like. However, due to the high power consumption of the satellite positioning module and the 4G/5G baseband, the anti-lost bracelet and the satellite positioning action tracker are difficult to maintain a continuous voyage for more than one week. Frequent charging may be inconvenient for the use of anti-lost bracelets, satellite positioning action trackers, or cause the patient to forget to wear. On the other hand, there are some positioning devices based on active radio frequency identification technology (Radio Frequency Identification, abbreviated as RFID), and in the classical positioning technical scheme based on RFID, the active RFID tag has excessive power consumption, has high requirements on battery capacity and charging frequency, and is not suitable for being integrated on a wearable device.
In view of this, how to overcome the defects existing in the prior art, and solve the problem that the effectiveness of the existing lost person tracking system is insufficient, is a problem to be solved in the technical field.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention solves the problem that the prior wisdom-losing group positioning equipment has high power consumption and is inconvenient to use.
The embodiment of the invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for locating a person, specifically: the method comprises the steps that positioning equipment carried by a person to be positioned collects surrounding environment information, and sends the environment information and an equipment identifier to a passing marking equipment, wherein the environment information comprises electronic environment information and/or natural environment information; a plurality of marking devices are distributed in the interval where the personnel to be positioned possibly act, the marking devices acquire the action track of the positioning device according to the received environmental information and the device identifier, and the positioning device is judged to leave or enter the safety area according to the action track; when the positioning equipment enters the safety area, a positioning module on the positioning equipment is closed, and the personnel to be positioned are positioned according to the action track acquired by the marking equipment.
Preferably, the positioning device carried by the person to be positioned collects surrounding environmental information, and further includes: the positioning device scans the surrounding marking devices and collects service identifiers of the marking devices; and/or the positioning device scans the surrounding wireless networks and collects wireless network identifiers; and/or the positioning information collects surrounding natural environment information and collects the characteristics of the natural environment information.
Preferably, the collecting service identifier of the positioning device specifically includes: the positioning equipment sorts the signal intensities of the scanned marking equipment, acquires the service identifiers of the specified number of marking equipment with the strongest signal intensity, and takes the acquired specified number of service identifiers as the service identifiers of the surrounding marking equipment.
Preferably, the marking device obtains the action track of the positioning device according to the received environmental information and the device identifier, and specifically includes: the marking equipment compares the received environment information with the information of the self environment, and judges whether the positioning equipment is positioned in the range of the self according to the comparison result; when the positioning mark is positioned in the range of the marking equipment, reporting an equipment identifier of the positioning equipment; and obtaining the action track of the positioning equipment according to the position of the marking equipment for reporting the equipment identifier and the reporting sequence.
Preferably, the marking device compares the received environmental information with the own environmental information, and judges whether the positioning device is located in the range of the positioning device according to the comparison result, specifically including: the marking device compares the received service identifier with the service identifier of the marking device, and when the received service identifier contains the service identifier of the marking device, the marking device is positioned in the range of the marking device; and/or the marking device compares the received wireless network identifier with the wireless network identifier acquired by the marking device, and when the received wireless network identifier is consistent with the wireless network identifier acquired by the marking device, the marking device is positioned in the range of the marking device; and/or the marking equipment compares the received natural environment information with the natural environment information acquired by the marking equipment, and when the received natural environment information is consistent with the natural environment information acquired by the marking equipment, the marking equipment is positioned in the range of the marking equipment.
Preferably, the determining that the positioning device leaves or enters the safety area according to the action track specifically includes: when the marking equipment positioned at the boundary of the safety area judges that the positioning equipment is positioned in the range of the marking equipment, the advancing direction of the action track is obtained; when the action track extends from the inside of the safety area to the outside of the safety area, indicating that the positioning equipment is about to leave the safety area; when the action track extends from outside the safety area to inside the safety area, the positioning device is indicated to enter the safety area.
Preferably, when the positioning device enters the safety area, the positioning module on the positioning device is closed, and the method further comprises: and when the positioning equipment enters the area where the bound marking equipment is located, closing the positioning module on the positioning equipment.
Preferably, when the positioning device enters the safety area, the positioning module on the positioning device is closed, and the method further comprises: and when the closing time of the positioning module on the positioning equipment exceeds the preset time, starting the positioning module on the positioning equipment.
In a second aspect, the present invention provides a device for locating a person, specifically: the positioning device comprises a processor, a storage module, a positioning module and a data interaction module, wherein the processor, the storage module, the positioning module and the data interaction module are used for realizing the functions of the positioning device in the method according to the first aspect, and the specific steps are as follows: the processor is respectively connected with other modules in the equipment, and the storage module is respectively connected with other modules in the equipment; wherein the processor is configured to control other modules in the device according to the method of the first aspect; the storage module is used for storing positioning data and environment information data; the positioning module is used for acquiring the current position of the equipment outside the safety area; the data interaction module is configured to perform communication with the marking device according to the method of the first aspect.
In a third aspect, the present invention provides a system for locating a person, in particular: comprising a positioning device and at least one marking device, in particular: the positioning equipment and the marking equipment perform data interaction by using a wireless communication mode; wherein the positioning device is a device for positioning a person according to the second aspect, and is configured to perform the function of the positioning device in the method according to the first aspect; the marking device is configured to perform the function of the marking device in the method according to the first aspect.
Compared with the prior art, the embodiment of the invention has the beneficial effects that: and a plurality of marking devices are distributed in the area where the personnel to be positioned possibly acts, when the positioning devices enter the safe area, the positioning modules on the positioning devices are closed, only the communication function with low power consumption is reserved, and the track calculation of the positioning devices is performed by the marking devices so as to replace the positioning modules with high power consumption to finish personnel positioning. Because the personnel to be positioned usually move in the safety area for most of time, only a low-power-consumption communication function is needed, the cruising ability of the positioning equipment can be improved, and the risk of losing the personnel to be positioned is reduced.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings that are required to be used in the embodiments of the present invention will be briefly described below. It is evident that the drawings described below are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a flowchart of a method for locating a person according to an embodiment of the present invention;
FIG. 2 is a flowchart of another method for locating a person according to an embodiment of the present invention;
FIG. 3 is a flowchart of another method for locating a person according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a device for locating a person according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a system architecture for personnel positioning according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The present invention is an architecture of a specific functional system, so that in a specific embodiment, functional logic relationships of each structural module are mainly described, and specific software and hardware implementations are not limited.
In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other. The invention will be described in detail below with reference to the drawings and examples.
Example 1:
in order to reduce the positioning power consumption of the positioning device used by the person to be positioned, and avoid the situation that the positioning device stops working due to too low power consumption or forgets to carry due to frequent charging, the embodiment provides a low-power-consumption positioning method, so that the positioning device can work stably for a long time, and the risk of losing the person to be positioned is reduced.
As shown in fig. 1, the method for locating personnel provided by the embodiment of the invention specifically comprises the following steps:
step 101: surrounding environment information is collected by positioning equipment carried by a person to be positioned, and the environment information and an equipment identifier are sent to the passing marking equipment, wherein the environment information comprises electronic environment information and/or natural environment information.
In the method provided in this embodiment, in order to replace the high-power-consumption satellite positioning mode in the prior art, the marking device is used to obtain the position and the action track of the positioning device in the safe area, and since the distance between the marking device and the positioning device is relatively short, various low-power-consumption communication modes can be used to perform data interaction between the positioning device and the marking device, for example, a low-power-consumption bluetooth device is used to reduce the power consumption of the positioning device as much as possible. The positioning device only needs to simply acquire the surrounding environment information of the positioning device and send the environment information to the marking device so that the marking device can perform comparison and matching.
In practical implementation, in order to ensure that the information sent by the positioning device can be received, the information sending mode preferably uses broadcast sending, and all the marking devices in the signal range of the positioning device can receive the information and perform corresponding calculation and response.
In a specific implementation, the environmental information collected by the positioning device may be electronic environmental information or natural environmental information, and the electronic environmental information is preferably used because the collection power consumption of the electronic environmental information is lower and the accuracy is higher.
On the other hand, in the same area, there may be a plurality of positioning devices, and in order for the marking device to distinguish each positioning device, the positioning device also needs to transmit its own device identifier to the marking device so that the marking device identifies each positioning device by the device identifier.
Step 102: and a plurality of marking devices are distributed in the interval where the personnel to be positioned possibly act, the marking devices acquire the action track of the positioning device according to the received environmental information and the device identifier, and the positioning device is judged to leave or enter the safety area according to the action track.
In the method provided by the embodiment, the marking device is used for positioning the positioning device. The marking device need not be carried around, so that an active device or a high-power battery can be used without limitation of power consumption. In this embodiment, the marking device performs the main data processing and positioning tasks to reduce the power consumption of the positioning device. And each marking device records the positioning devices passing through the range of the marking device, integrates the positioning device information recorded by all the marking devices, and obtains the action track of the positioning device according to the positions of the marking devices and the passing sequence of the positioning devices.
The marking device may use a fixed device, such as a fixed location WiFi router, bluetooth broadcast station, base station, etc.; devices with positioning functionality that are insensitive to power consumption, such as WiFi, mobile base stations, mobile communication devices for accompanying or managing personnel on vehicles, etc. may also be used. In a specific implementation, a suitable marking device can be selected according to actual needs so as to adapt to more use scenes.
In practical implementation, the marking device continuously broadcasts and transmits its own service identifier, and the positioning device uses the received service identifier as environment information of the positioning device. When the marking device obtains that the action track of a certain device has the possibility of leaving the safety area, alarm information is sent to the corresponding positioning device one to one according to the device identifier, and the alarm information of the positioning device is sent to the bound accompanying person.
In this embodiment, an area where the person to be positioned can safely and freely move is referred to as a safety area, and the key for preventing the person to be positioned from getting lost is to avoid the person to be positioned from leaving the safety area. In practical implementation, the safety area may be a fixed area, such as a closed residential area where a person to be located resides, a closed-managed nursing home or hospital, etc.; but may also be a moving area such as an enclosed vehicle interior, within a certain range around a caregiver, etc. The boundary of the multi-layer safety area can be set according to the daily activity condition of the personnel to be positioned, for example, a building occupied by the personnel to be positioned is a first-layer safety area, a residential district is a second-layer safety area, and a residential neighborhood is a third-layer safety area. In the layout of the marking devices, a required number of marking devices may be provided inside, outside, and boundary of the security area, respectively, as needed.
When the positioning device enters the range of the marking device positioned at the boundary of the safety area, for example, enters the range of the marking device arranged in the exit-entry area or the entrance-exit area of the salon, the risk that the positioning device leaves the safety area is indicated, the marking device positioned at the boundary of the safety area needs to judge the advancing direction of the personnel to be positioned according to the action track of the positioning device, alarm is given when the personnel to be positioned possibly leaves the safety area, and the positioning device is controlled to perform positioning with higher precision.
Step 103: when the positioning equipment enters the safety area, a positioning module on the positioning equipment is closed, and the personnel to be positioned are positioned according to the action track acquired by the marking equipment.
When the personnel to be positioned is positioned outside the safety area, the risk of losing is higher, marking equipment does not exist nearby, the positioning equipment needs to be started or kept to be started, and the positioning module is positioned in a mode with higher precision such as GPS positioning, so that the position of the positioning equipment can be queried at any time, and the safety of the personnel to be positioned is ensured. When the personnel to be positioned are positioned in the safety area, the risk of losing is low, and only the marking equipment is needed to confirm the approximate position of the personnel to be positioned, so that the power consumption of the positioning equipment is reduced, the endurance time of the positioning equipment is prolonged, and the situation that the electric quantity of the positioning equipment is exhausted and cannot be used or frequent charging is needed is avoided.
In order to further reduce the power consumption, the positioning device may not continuously maintain the communication state within the secure area, but rather perform data interaction according to the data interaction module and the marking device being turned on at specified time intervals. For example, every 10 seconds, a data interaction is performed, so that the marking device obtains the current position of the positioning device. In a state of non-continuous communication, in order to avoid that a person to be positioned enters a position where the marking device does not exist when communication is interrupted, when the positioning device starts communication, information of the marking device cannot be collected, or when information replied by the marking device is not received, a positioning module of the positioning device needs to be started, so that the current position of the positioning device is timely acquired.
After steps 101-103 provided in this embodiment, the marking device and the positioning device may cooperate to position the person to be positioned on the premise that the positioning device has as low power consumption as possible.
The positioning device carried by the person to be positioned needs to collect surrounding environmental information, and the following simple provides a method for acquiring some environmental information, and in practical implementation, other methods can be used for acquiring or other environmental information can be acquired according to the needs.
(1) The locating device scans the surrounding marking devices and collects the service identifiers of the marking devices.
Each tag device has its own service identifier and continues to broadcast, so that the location device can scan all the surrounding tag devices for service identifiers, and use the tag device's service identifier as one of the context information.
In practical implementation, multiple marking devices may exist in the same area, and signal ranges of the marking devices may overlap, and at this time, the positioning device may collect service identifiers of the multiple marking devices at the same time. In performing positioning, it is necessary to select the nearest marker device as a position reference for the positioning device, whereas in wireless communication, the closer the device is, the stronger the signal is generally. Therefore, the positioning device sorts the signal strengths of the scanned marking devices, acquires the service identifiers of the specified number of marking devices with the strongest signal strength, and takes the acquired specified number of service identifiers as the service identifiers of the surrounding marking devices. In practice, the number of marking devices specified may be generally 1-3 in order to minimize the positioning reference range.
(2) The positioning device scans the surrounding wireless networks and collects wireless network identifiers.
The data interaction module of the positioning device can scan surrounding wireless networks, such as WiFi, bluetooth, wireless base stations, and the like, each network has a corresponding wireless network identifier, and the marking devices in the same range can also acquire the corresponding wireless network identifiers, so that the wireless network identifiers can be used as one of environment information.
(3) And acquiring surrounding natural environment information by the positioning information, and collecting the characteristics of the natural environment information.
When the positioning device and the marking device are located in the same range, surrounding noise, images, and other natural environment information are also consistent, so that the natural environment information can be used as one of the environment information.
In the above environment information, the service identifier and the wireless network identifier are both electronic environment information, and the electronic environment information is easier to obtain and easier to compare than the natural environment information, so when the electronic environment information can be obtained, the electronic environment information is preferably used as the environment information for comparison. However, in some scenarios, the positioning device cannot obtain the service identifier and the wireless network identifier, and at this time, it is necessary to use the natural environment information for comparison.
When the positioning equipment can collect the service identifier, the surrounding marking equipment is indicated, the positioning equipment directly sends the environment information to the nearby marking equipment, and the marking equipment reports the environment information so as to reduce the power consumption of the positioning equipment. On the other hand, when the positioning equipment cannot acquire the service identifier, the situation that the marking equipment possibly does not exist around is indicated, the risk of losing the personnel to be positioned is high, and at the moment, the positioning equipment directly reports the environment information through the data interaction module so as to discover the condition of losing the personnel to be positioned in time.
In order to further reduce the power consumption of the positioning device for transmitting information, a service identifier list of the marking device located at the boundary of the safety area can be maintained on the positioning device, when the positioning device is connected with the marking device located at the boundary of the non-safety area of the acquired service identifier, the positioning device is indicated to be located at the middle position of the safety area, the possibility of missing is low, at the moment, service identifier information can be only transmitted to the marking device, and the marking device can be compared only by the service identifier information. When the positioning device is connected with the marking device with the collected service identifier being the boundary of the safety area, the positioning device is indicated to be positioned at the boundary position of the safety area, the possibility of losing is high, and at the moment, various environment information needs to be sent so as to obtain more searching instructions after the personnel to be positioned leave the safety area.
As shown in fig. 2, after receiving the environmental information sent by the positioning device, the marking device obtains the action track of the positioning device according to the received environmental information and the device identifier.
Step 201: the marking device compares the received environment information with the information of the own environment, and judges whether the positioning device is positioned in the range of the self according to the comparison result.
The marking device compares the environment information of the positioning device with the self information, and if the environment information and the self information are consistent, the positioning device and the marking device are located in the same range.
Step 202: and when the positioning mark is positioned in the range of the marking device, reporting the device identifier of the positioning device.
When the marking device judges that the positioning device and the marking device are positioned in the same range, the marking device reports the device identifier of the positioning device, and the position information of the marking device is used as the current position of the positioning device.
Step 203: and obtaining the action track of the positioning equipment according to the position of the marking equipment for reporting the equipment identifier and the reporting sequence.
And connecting the reported position point information according to the reporting sequence, so as to obtain a path route and a forward direction of the positioning equipment and obtain a movement track of the positioning equipment.
After steps 201 to 203 provided in this embodiment, the action track of the positioning device may be obtained by comparing the environmental information of the positioning device and the environmental information of the marking device, so as to position the person to be positioned.
In step 201, different comparison methods may be used for different environmental information, and the following comparison method for some environmental information is provided simply, and in actual implementation, other manners may be used for comparison, or other environmental information may be compared as required.
(1) The marking device compares the received service identifier with its own service identifier, and when the received service identifier contains its own service identifier, it indicates that the positioning device is located in the range of the marking device.
The locating device is able to receive the service identifier of a corresponding marking device when it is within the signal range of the marking device. Therefore, if the acquired service identifier of the positioning device includes the service identifier of the positioning device, the environment information of the positioning device matches with the environment information sent by the positioning device.
(2) The marking device compares the received wireless network identifier with the wireless network identifier acquired by the marking device, and when the received wireless network identifier is consistent with the wireless network identifier acquired by the marking device, the marking device indicates that the positioning device is positioned in the range of the marking device.
Within the same range, wireless network signals that can be found by different wireless devices are substantially identical. Thus, if the wireless network identifier acquired by the positioning device is identical to the wireless network identifier acquired by the marking device, the environment information of the two is identical.
(3) The marking device compares the received natural environment information with the natural environment information acquired by the marking device, and when the received natural environment information is consistent with the natural environment information acquired by the marking device, the marking device indicates that the positioning device is positioned in the range of the marking device.
In the same range, the natural environment information collected by different devices is basically consistent, for example, noise is similar, and the same characteristic object exists in the environment image. Therefore, if the natural environment information collected by the positioning device is consistent with the natural environment information collected by the marking device, the environment information of the positioning device and the natural environment information are consistent.
Therefore, by comparing different environmental information, whether the positioning equipment and the marking equipment are located in the same range can be confirmed, and the positioning equipment is positioned by the position of the marking equipment.
In the method provided by the embodiment, the positioning module in the positioning device is closed in the safety area, and the positioning module in the positioning device is opened outside the safety area, so that the positioning mode needs to be switched when the positioning device enters the safety area and leaves the safety area. As shown in fig. 3, the following manner may be used to determine whether the positioning device leaves or enters the safe area according to the action trajectory.
Step 301: when the marking equipment positioned at the boundary of the safety area judges that the positioning equipment is positioned in the area where the marking equipment is positioned, the advancing direction of the action track is acquired.
The positioning mode does not need to be switched when the positioning device is always within the safe area or the safe area is active. When the positioning device enters the range of the marking device at the boundary of the safety area, the positioning device may enter or leave the safety area, at this time, it is required to judge that the person to be positioned enters or leaves the safety area currently according to the action track, and perform corresponding positioning mode switching according to the judgment result.
Step 302: when the action track extends from inside to outside the safety area, the positioning device is indicated to leave the safety area.
If the action track passes through the marking device in the safety area and then passes through the marking device at the boundary of the safety area, the positioning device possibly leaves the safety area.
Step 303: when the action track extends from outside the safety area to inside the safety area, the positioning device is indicated to enter the safety area.
If the action track passes through the marking device outside the safety area first and then passes through the marking device on the boundary of the safety area or does not pass through any marking device within a certain period before passing through the marking device on the boundary of the safety area, the positioning device possibly enters the safety area.
After steps 301-303 provided in this embodiment, it may be determined that the current positioning device is about to leave or enter the security area.
In some practical scenarios, there may be situations where the room in which the person to be located resides is located at the edge of the security area, e.g. the room in which the person to be located resides is close to the outer wall of a cell or hospital. In order to avoid misjudgment in the scene, the switching standard of the positioning mode can be adjusted according to actual conditions, and more judgment conditions are added. For example, the marking device in the room where the person to be positioned resides is bound with the positioning device, when the positioning device enters the range where the bound marking device is located, the person to be positioned is indicated to be located in the living room and is in a safe state, and the positioning module on the positioning device is closed.
In some practical scenarios, due to a fault or poor signal of a marking device located at the boundary of the safety area, when a person to be positioned leaves the safety area, a positioning module on the positioning device cannot be started in time. To avoid this problem, the positioning module on the positioning device is turned on when the closing time of the positioning module on the positioning device exceeds a preset time. In a certain scene, the positioning module is in a closed state and is communicated with the marking equipment for more than ten minutes before, at this time, the positioning module needs to be started every 5 minutes, and when the obtained positioning data is outside the safety area, the satellite positioning module is kept open so as to prevent the personnel to be positioned from being lost due to the identification failure on the boundary of the safety area.
In some practical scenarios, because the building blocks of the urban residential district often do not enter the room, and only in the outdoor environment between the buildings, the signals of the positioning satellites are greatly attenuated or difficult to detect, which can cause a great increase in the power consumption of the positioning module. In order to solve this technical problem. When the person to be positioned approaches the safety area, the position of the positioning device can be identified through the marking device positioned at the boundary of the safety area, so that the positioning module is closed in advance. The method can prevent satellite signals from being bad and reduce the overall power consumption of the low-power-consumption positioning equipment more accurately. To ensure accurate determination of the position location, this decision method must combine the signal strength with a plurality of service identifiers to make the decision.
The personnel positioning method provided by the embodiment has the following technical advantages:
1. the marking device is subjected to broadcast communication through the low-power-consumption data interaction module integrated on the positioning device, and the interaction of environment information is completed, so that the accurate positioning of indoor and safe area boundaries is realized.
2. The action of starting and closing the positioning module is triggered on the boundary of the safety area, so that the positioning module of the positioning equipment is kept dormant in the safety area to save electric quantity, the positioning equipment has longer battery endurance, and the battery charging frequency is reduced.
Example 2:
based on the method for locating a person provided in embodiment 1, there is also provided a device for locating a person in this embodiment, for implementing the function of the locating apparatus in the method provided in embodiment 1,
as shown in fig. 4, includes a processor, a memory module, a positioning module, and a data interaction module. The processor is respectively connected with other modules in the device, and the storage module is respectively connected with other modules in the device. In fig. 4, the line connections represent the data and control signal interconnections between the modules.
The processor is configured to control other modules in the device according to the method provided in embodiment 1, for example, to control the positioning module to be turned on and off according to a signal fed back by the marking device, to perform data interaction with the marking device according to a set communication time, and so on.
The storage module is used for storing positioning data and environment information data, and can also be used for storing other data needing to be used or calculating intermediate data.
The positioning module is used for acquiring the current position of the equipment outside the safety area, and in specific implementation, the proper positioning module can be selected according to the requirement. For example: a satellite positioning module is used for realizing real-time dynamic positioning of a person to be positioned through signals of a navigation satellite; using an electronic tag reading module to realize the positioning of a person to be positioned based on preset electronic tag equipment; the satellite positioning module and the electronic tag module are used simultaneously, and the electronic tag arranged on the boundary of the safety area triggers the starting of the satellite positioning module to be started or closed.
The data interaction module is used to complete the communication with the marking device according to the method provided in embodiment 1. In a specific implementation, a low-power communication mode such as a low-power Bluetooth module or a WiFi module can be used as a data interaction mode according to the requirements of the marking equipment, so that the power consumption requirements during positioning in a safe area are reduced.
In a preferred embodiment of the present embodiment, the data interaction module uses a bluetooth low energy module. And starting scanning once in no longer than 4s by the positioning equipment to acquire surrounding environment information, and starting a data interaction module to perform data interaction with the marking equipment. Further, when the identification device uses the bluetooth name as the service identifier, the location device acquires the service identifier of the tag device using the bluetooth low energy module. At this time, although the bluetooth module with low power consumption can reduce the bluetooth module power consumption and the CPU scan load power consumption caused by bluetooth scan by increasing the scan interval in the scan state and reducing the scan window, the CPU scan load is still high in the scan without bluetooth name filtering. Therefore, the bluetooth names (i.e. service identifiers) of the marker devices can be recorded in the positioning device, and a bluetooth name filtering list is generated so as to perform low-power bluetooth scanning with bluetooth name filtering, thereby further reducing power consumption.
Further, in order to improve the safety of the person to be positioned outside the safety area, the device provided by the embodiment further comprises a communication module, and the communication module can use the 4G/5G module or the WiFi module, so that the person to be positioned can call for help outside the safety area, or the accompanying person can call for and assist the person to be positioned. However, since the power consumption of the communication module such as the 4G/5G module is large, when the communication module is used in the device, the communication module and the positioning module need to be turned on and off at the same time, so as to save the power consumption of the device.
Therefore, the method provided in this embodiment can implement the function of the positioning device in the method of embodiment 1, and implement personnel positioning with low power consumption in cooperation with the marking device.
Example 3:
based on the method for locating a person provided in embodiment 2, there is also provided a device for locating a person in this embodiment, for implementing the function of the locating apparatus in the method provided in embodiment 1,
as shown in fig. 5, the system comprises a positioning device and at least one marking device, and the positioning device and the marking device use a wireless communication mode to conduct data interaction. In FIG. 5, comprising a positioning device and a plurality of marking devices, the dashed lines represent the extent of the security area, the marking devices being distributed inside the security area, on the security area boundary, outside the security area
The positioning apparatus uses the apparatus provided in embodiment 2 for performing the function of the positioning apparatus in the method described in embodiment 1.
The marking apparatus is used to perform the functions of the marking apparatus in the method described in embodiment 1. In a specific implementation, a wireless network device integrated with a bluetooth low energy module or a WiFi module may be used as the marking device, for example: the wireless router comprises an industrial personal computer integrated with the low-power-consumption Bluetooth module, mobile communication equipment integrated with the low-power-consumption Bluetooth module, a palm computer or tablet personal computer integrated with the low-power-consumption Bluetooth module, a wireless router integrated with the WfFi module and the like.
In a specific implementation, the marking device may be subdivided into an indoor marking device, a security area inside marking device, a security area boundary marking device, and a security area outside marking device according to the setting location and specific functions. In practical implementations, the room typically designates the house or floor where the person to be located lives, within which the person to be located can typically be considered as a safe state.
(1) The indoor marking device may be integrated in a home gateway for deployment within a house in which the person to be located is living.
(2) The marking equipment in the safety area is deployed in the safety area and is used for acquiring the action track of the positioning equipment and positioning the personnel to be positioned in the safety area.
(3) The security area boundary marking device is disposed on the security area boundary, such as the entrance and exit of a cell, and sends control signals for opening and closing the positioning module to the positioning device according to the condition that the positioning device enters and leaves the security area.
(4) The outside-security-zone marking device is deployed outside the security zone to assist in finding the person to be located who leaves the security zone.
In the actual scenario shown in fig. 5, 4 marking devices are used. The marking device 1 is an indoor marking device, the marking device 2 is a marking device in a safety area, the marking device 3 is a marking device in a boundary of the safety area, the marking device 4 is a marking device outside the safety area, and the positioning modes of the personnel to be positioned in different areas are as follows.
(1) When the personnel to be positioned moves in the safety area, the personnel to be positioned can be basically prevented from being lost, at the moment, the positioning module and the communication module on the positioning equipment are kept in a closed state, and only the low-power-consumption data interaction module is used for carrying out data interaction with the marking equipment 1 and the marking equipment 2, and the marking equipment 1 and the marking equipment 2 are used for positioning the personnel to be positioned, so that the power consumption of the positioning equipment is reduced as much as possible.
(2) When the person to be positioned arrives near the entrance and exit of the safety area, there is a possibility that the person to be positioned leaves the safety area, at this time, the person to be positioned enters the range of the marking device 3, and the marking device 3 determines whether the person to be positioned moves from the inside of the safety area to the outside of the safety area according to the action tracks of the person to be positioned acquired by the marking device 1, the marking device 2 and the marking device 4. If the personnel to be positioned pass through the marking equipment 1 or the marking equipment 2-marking equipment 3 in turn, the personnel to be positioned is indicated to move outside the safety area, a positioning module and a communication module on the positioning equipment are opened, so that the situation that the personnel to be positioned cannot be positioned after leaving outside the safety area is avoided, and warning information can be sent to accompanying personnel or community safety management personnel. If the personnel to be positioned pass through the marking equipment 4 and the marking equipment 3 in turn, the personnel to be positioned are indicated to move into the safety area, the positioning module and the communication module on the positioning equipment are closed, and the power consumption of the positioning equipment is reduced after the personnel to be positioned enter the safety area.
(3) When the person to be positioned leaves the safety area, the risk of losing is great, and at the moment, the person to be positioned enters the range of the marking device 4, uses the positioning module to position, and performs auxiliary positioning and alarming by the marking device 4.
Therefore, the system provided by the embodiment can establish the positioning and lost early warning network of the personnel to be positioned through the cooperation of the marking equipment, and the positioning of the personnel is realized under the condition that the power consumption of the positioning equipment is as low as possible. In practical implementation, the number and the positions of the marking devices can be reasonably set according to practical conditions so as to achieve the optimal positioning and safety protection effects.
In the system provided by the embodiment, data interaction between the positioning device and the marking device can be realized by adopting a low-power consumption bluetooth technology or a WiFi wireless network technology, and hardware realization examples of the two schemes are as follows respectively.
(1) The marking device is network equipment with a low-power-consumption Bluetooth module, the positioning device is integrated with the low-power-consumption Bluetooth module, the indoor marking device is gateway equipment with the Bluetooth module, and the safe area boundary marking device is an industrial control computer with the low-power-consumption Bluetooth module. Because the maximum data length of the broadcasting message of the low-power consumption Bluetooth can reach 31 bytes, the low-power consumption Bluetooth broadcasting message is enough to accommodate the service identifier or the equipment identifier, the environment information and the like, the Bluetooth connection is not established between the marking equipment and the positioning equipment, and the two parties broadcast interactive data through Bluetooth, namely the service identifier, the equipment identifier and the environment information are transmitted by adopting Bluetooth broadcasting packets. The low-power consumption Bluetooth technology adopts a 2.4G frequency band, has the characteristics of omnidirectionality, good wall penetrating capacity and the like, and is required to be independently installed or replaced by gateway equipment with a Bluetooth module in the home of a person to be positioned when the system is deployed.
(2) The marking device is a WiFi wireless router, the low-power-consumption positioning device is integrated with a WiFi data interaction module, the indoor positioning module is a WiFi data communication module, the popularity of the WiFi wireless network technology is high, construction in a living room of a person to be positioned is not needed, but the power consumption is high, and the cruising ability of the low-power-consumption positioning device can be reduced.
In practical implementation, the implementation may be performed with reference to the above examples, or may be adjusted according to practical situations. However, in view of the fact that the power consumption of the indoor positioning module cannot be too high, a scheme using the bluetooth low energy technology is preferable.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. A method for locating a person, comprising:
the method comprises the steps that positioning equipment carried by a person to be positioned collects surrounding environment information, and sends the environment information and an equipment identifier to a passing marking equipment, wherein the environment information comprises electronic environment information and/or natural environment information;
a plurality of marking devices are distributed in the interval where the personnel to be positioned possibly act, the marking devices acquire the action track of the positioning device according to the received environmental information and the device identifier, and the positioning device is judged to leave or enter the safety area according to the action track;
when the positioning equipment enters the safety area, a positioning module on the positioning equipment is closed, and the personnel to be positioned are positioned according to the action track acquired by the marking equipment.
2. The method of locating a person according to claim 1, wherein the locating device carried by the person to be located collects ambient information, further comprising:
the positioning device scans the surrounding marking devices and collects service identifiers of the marking devices;
and/or the positioning device scans the surrounding wireless networks and collects wireless network identifiers;
and/or the positioning information collects surrounding natural environment information and collects the characteristics of the natural environment information.
3. The method of personnel location according to claim 2, characterized in that said collecting service identifiers of the marking device comprises in particular:
the positioning equipment sorts the signal intensities of the scanned marking equipment, acquires the service identifiers of the specified number of marking equipment with the strongest signal intensity, and takes the acquired specified number of service identifiers as the service identifiers of the surrounding marking equipment.
4. The method for locating a person according to claim 1, wherein the marking device obtains the action track of the locating device according to the received environmental information and the device identifier, and specifically comprises:
the marking equipment compares the received environment information with the information of the self environment, and judges whether the positioning equipment is positioned in the range of the self according to the comparison result;
when the positioning mark is positioned in the range of the marking equipment, reporting an equipment identifier of the positioning equipment;
and obtaining the action track of the positioning equipment according to the position of the marking equipment for reporting the equipment identifier and the reporting sequence.
5. The method for locating a person according to claim 4, wherein the marking device compares the received environmental information with the information of the own environment, and determines whether the locating device is located in the range of the own according to the comparison result, specifically comprising:
the marking device compares the received service identifier with the service identifier of the marking device, and when the received service identifier contains the service identifier of the marking device, the marking device is positioned in the range of the marking device;
and/or the marking device compares the received wireless network identifier with the wireless network identifier acquired by the marking device, and when the received wireless network identifier is consistent with the wireless network identifier acquired by the marking device, the marking device is positioned in the range of the marking device;
and/or the marking equipment compares the received natural environment information with the natural environment information acquired by the marking equipment, and when the received natural environment information is consistent with the natural environment information acquired by the marking equipment, the marking equipment is positioned in the range of the marking equipment.
6. The method for locating a person according to claim 1, wherein the determining that the locating device leaves or enters the safe area according to the action track specifically comprises:
when the marking equipment positioned at the boundary of the safety area judges that the positioning equipment is positioned in the range of the marking equipment, the advancing direction of the action track is obtained;
when the action track extends from the inside of the safety area to the outside of the safety area, indicating that the positioning equipment is about to leave the safety area;
when the action track extends from outside the safety area to inside the safety area, the positioning device is indicated to enter the safety area.
7. The method of personnel location of claim 1, wherein the turning off the location module on the location device when the location device enters the secure area further comprises:
and when the positioning equipment enters the area where the bound marking equipment is located, closing the positioning module on the positioning equipment.
8. The method of personnel location of claim 1, wherein the turning off the location module on the location device when the location device enters the secure area further comprises:
and when the closing time of the positioning module on the positioning equipment exceeds the preset time, starting the positioning module on the positioning equipment.
9. An apparatus for locating a person, comprising a processor, a storage module, a locating module and a data interaction module, configured to implement the functions of the locating device in the method according to any one of claims 1-8, in particular:
the processor is respectively connected with other modules in the equipment, and the storage module is respectively connected with other modules in the equipment;
wherein the processor is configured to control other modules in the device according to the method of any one of claims 1-8;
the storage module is used for storing positioning data and environment information data;
the positioning module is used for acquiring the current position of the equipment outside the safety area;
the data interaction module is configured to perform communication with a marking device according to the method of any one of claims 1-8.
10. A system for locating a person, comprising a locating device and at least one marking device, in particular:
the positioning equipment and the marking equipment perform data interaction by using a wireless communication mode;
wherein the positioning device is a person positioning apparatus according to claim 9 for performing the functions of the positioning device in the method according to any one of claims 1-8;
the marking device being adapted to perform the functions of the marking device in the method of any one of claims 1-8.
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| CN202310620360.0A CN116626585A (en) | 2023-05-29 | 2023-05-29 | Personnel positioning method, device and system |
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