CN111935634A - Personnel positioning system - Google Patents
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- CN111935634A CN111935634A CN202010826913.4A CN202010826913A CN111935634A CN 111935634 A CN111935634 A CN 111935634A CN 202010826913 A CN202010826913 A CN 202010826913A CN 111935634 A CN111935634 A CN 111935634A
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- H—ELECTRICITY
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/021—Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences
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- G—PHYSICS
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- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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Abstract
The invention provides a personnel positioning system, comprising: the data acquisition module is used for acquiring positioning data of personnel in a case handling center; the data storage module is used for storing the positioning data; the early warning module is used for judging the position of the personnel in the case handling center according to the positioning data and/or judging whether the stay time of the personnel in the case handling center at the position meets a preset early warning condition, and if so, sending an alarm prompt to related workers; and the query module is used for querying the historical positioning data of the personnel in the case handling center according to the identity information. The invention effectively avoids the action that part of public security organs leave the suspect at will or over time in the case handling center, and the legal rights and interests of the suspect are powerfully guaranteed.
Description
Technical Field
The invention relates to the field of positioning, in particular to a personnel positioning system.
Background
With the development of internet of things, RFID, sensor technology, short-range communication, computing technology and the like in China, the technology is gradually applied to multiple fields such as public safety, city management, energy environmental protection, transportation, public utilities, agricultural services, medical health, education culture, tourism and the like, and the technology still keeps rapid development in the coming years.
In recent years, the law enforcement standardization construction is deepened, and higher and thinner requirements are put forward on law enforcement hardware facilities in the aspects of case handling functional areas and the like of public security industry institutions. In order to restrain and prevent the occurrence of events such as criminal information forcing from the source, remove illegal evidences and further standardize law enforcement behaviors of public security industry authorities.
In practice, however, there is some irregular behavior of the public security organization in the office center. For example, some public security agencies leave the suspect at will in the case handling center or leave the suspect within a time-out period, so that the legitimate rights and interests of the suspect cannot be guaranteed.
Disclosure of Invention
In view of the above problems, the present invention provides a personnel positioning system to solve the above problems.
The application provides a personnel positioning system, it includes:
the data acquisition module is used for acquiring positioning data of personnel in a case handling center;
the data storage module is used for storing the positioning data;
the early warning module is used for judging the position of the personnel in the case handling center according to the positioning data and/or judging whether the stay time of the personnel in the case handling center at the position meets a preset early warning condition, and if so, sending an alarm prompt to related workers;
and the query module is used for querying the historical positioning data of the personnel in the case handling center according to the identity information.
Preferably, the personnel of the office center include police and criminal suspects.
Preferably, the data acquisition module comprises a positioning bracelet and a wireless sensor network; the wireless sensor network comprises a plurality of wireless sensor nodes and a communication base station, the positioning bracelet is communicated with the wireless sensor network, and the positioning bracelet sends positioning data of the positioning bracelet to the data storage module at regular time through the wireless sensor network.
Preferably, the preset early warning condition includes:
the position of the personnel of the office center belongs to an area which is forbidden to enter and/or the length of time that the personnel of the office center stay at the position exceeds a preset stay time threshold value.
Preferably, the case handling center personnel positioning system further comprises a display module, wherein the display module is used for generating a positioning map of the case handling center, generating an activity track according to the historical positioning data obtained by the query module, and displaying the activity track on the positioning map.
The invention has the beneficial effects that:
according to the invention, by monitoring and storing the position of the personnel at the case handling center in real time, the alarm body operation is sent to the relevant staff when the position of the personnel at the case handling center and the time of staying at the position are monitored to meet the preset early warning condition. The behavior that part of public security institutions leave the suspect at will or over time is effectively avoided, so that the legal rights and interests of the suspect are powerfully guaranteed. Meanwhile, the position information of the personnel in the case handling center is stored, so that the police and the criminal suspects can be positioned and the activity track can be played back in real time, and the personnel in the case handling center can be accurately positioned and managed safely.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.
Fig. 1 is a diagram of an exemplary embodiment of a people positioning system according to the present invention.
Detailed Description
The invention is further described with reference to the following examples.
Referring to fig. 1, in one aspect, the present invention provides a people positioning system comprising
The data acquisition module 1 is used for acquiring positioning data of personnel in a case handling center;
the data storage module 2 is used for storing the positioning data;
the early warning module 3 is used for judging the position of the personnel in the case handling center according to the positioning data and/or judging whether the stay time of the personnel in the case handling center at the position meets a preset early warning condition, and if so, sending an alarm prompt to related workers;
and the query module 4 is used for querying the historical positioning data of the personnel in the case handling center according to the identity information.
In one embodiment, the personnel of the office center include police and criminal suspects.
In one embodiment, the data acquisition module 1 comprises a positioning bracelet and a wireless sensor network; the wireless sensor network comprises a plurality of wireless sensor nodes and a communication base station, the positioning bracelet is communicated with the wireless sensor network, and the positioning bracelet sends positioning data of the positioning bracelet to the data storage module 2 at regular time through the wireless sensor network.
In one embodiment, the preset warning condition includes:
the position of the personnel of the office center belongs to an area which is forbidden to enter and/or the length of time that the personnel of the office center stay at the position exceeds a preset stay time threshold value.
In one embodiment, the case handling center personnel positioning system further comprises a display module, wherein the display module is used for generating a positioning map of the case handling center, generating an activity track according to historical positioning data obtained by the query module 4, and displaying the activity track on the positioning map.
By monitoring and storing the positions of the personnel at the case handling center in real time, the alarm body operation is sent to the related working personnel when the positions of the personnel at the case handling center and the time of staying at the positions are monitored to meet the preset early warning conditions. The behavior that part of public security institutions leave the suspect at will or over time is effectively avoided, so that the legal rights and interests of the suspect are powerfully guaranteed. Meanwhile, the position information of the personnel in the case handling center is stored, so that the police and the criminal suspects can be positioned and the activity track can be played back in real time, and the personnel in the case handling center can be accurately positioned and managed safely.
In one embodiment, the case handling center personnel positioning system further comprises a video acquisition module, wherein the video acquisition module is used for acquiring video information for monitoring case handling center personnel and sending the video information to the data storage module 2 for storage;
the display module displays the activity track of the personnel handling the case on the positioning map and simultaneously displays the video information for monitoring the personnel handling the case at the center.
In an implementation mode, the wireless sensor node includes location node and ordinary node, the position of location node is known, the quantity of location node is a plurality of, the location data is including required minimum number of times of forwardding, the average single distance of forwardding of every location node, the serial number of location bracelet and the minimum communication time of location bracelet and location node when location bracelet and every location node communicate respectively.
In one embodiment, the minimum forwarding times required by the positioning bracelet to communicate with each positioning node is obtained as follows:
for the c-th positioning node, a forwarding number acquisition data packet is sent to the positioning bracelet in a broadcasting mode, after a common node or other positioning nodes receive the forwarding number acquisition data packet, the value of the forwarding number acquisition data packet in the forwarding number acquisition data packet is added with 1, and then the forwarding number is broadcasted, wherein c belongs to [1, N ], and N represents the total number of the positioning nodes;
the positioning bracelet receives a plurality of forwarding times acquisition data packets from the c-th positioning node, obtains the forwarding times of the plurality of forwarding times acquisition data packets, adds 1 to the forwarding times of the forwarding times acquisition data packets with the minimum numerical value, and takes the obtained numerical value as the minimum forwarding times required by communication between the positioning bracelet and the c-th positioning node.
In one embodiment, the average single-hop distance of each positioning node is obtained by:
for the c-th positioning node, broadcasting a single-time forwarding distance calculation packet containing the position of the c-th positioning node in the wireless sensor network, and broadcasting the c-th positioning node after the common node receives the single-time forwarding distance calculation packet and adds 1 to the forwarding times of the single-time forwarding distance calculation packet contained in the single-time forwarding distance calculation packet;
for the c-th positioning node, after receiving a plurality of single-time forwarding distance calculation packets from the positioning node d, the c-th positioning node adds 1 to the forwarding times of the single-time forwarding distance calculation packet with the smallest value among the forwarding times of the plurality of single-time forwarding distance calculation packets, and takes the obtained value as the minimum forwarding time jum between the c-th positioning node and the d-th positioning nodec,d，c∈[1,N]N represents the total number of positioning nodes, D ∈ D, D represents the set of all positioning nodes except the c-th positioning node in the wireless sensor network;
the c positioning node calculates the average single forwarding distance according to the minimum forwarding times of the c positioning node and other positioning nodes:
in the formula, avehdcRepresents the average single-hop distance, x, of the c-th positioning nodecAnd ycRespectively representing the abscissa and ordinate, x, of the c-th positioning nodedAnd ydRespectively representing the abscissa and the ordinate of the D-th positioning node in D.
In the above embodiment of the present invention, the average single forwarding distance of the D-th positioning node is obtained by a weighted summation manner, and in the setting of the weight coefficient, the larger the obtained weight is, the larger the positioning node with the smaller minimum forwarding frequency between the positioning node c and the positioning node D is, the calculation error of the average single forwarding distance can be effectively reduced, because the larger the minimum forwarding frequency between two positioning nodes is, the larger the final calculation error is. The accuracy of positioning personnel at the case handling center is improved.
In one embodiment, the minimum communication time of the positioning bracelet and the positioning node is obtained by:
for a forwarding number acquisition data packet sent by a c-th positioning node, the forwarding number acquisition data packet comprises the sending time of the forwarding number acquisition data packet, and after receiving the forwarding number acquisition data packet, a common node or other positioning nodes write the time of receiving the forwarding number acquisition data packet, the time of broadcasting the forwarding number acquisition data packet and the self ID in the forwarding number acquisition data packet;
acquiring a data packet according to the forwarding times corresponding to the minimum forwarding times, and calculating the minimum communication time between the positioning bracelet and the c-th positioning node:
in the formula, mitcMinimum communication time, t, of the positioning bracelet and the c-th positioning nodese,gAnd tar,gRespectively showing the time when the G-th wireless sensor node participating in the forwarding process broadcasts the forwarding number acquisition data packet and the time when the forwarding number acquisition data packet is received, G showing the set of the wireless sensor nodes participating in the forwarding process, and tse,cIndicating the moment t of the c-th positioning node sending the forwarding times acquisition data packetar,cAnd the time when the positioning bracelet receives the forwarding times of the data packet acquired by the h positioning node is shown.
According to the embodiment of the invention, when the minimum communication time is calculated, the accurate minimum communication time can be obtained by subtracting the sending time of the device and the processing time of each wireless sensor node participating in forwarding from the receiving time of the data packet acquired by the forwarding times in the forwarding process, so that accurate data is provided for the subsequent calculation of the measurement distance.
In one embodiment, the measured distance between the positioning bracelet and each positioning node is calculated as follows:
tdc＝α×avehdc×miretc+β×mitc×sp
in the formula, tdcIndicating positioning handMeasured distance, avehd, between the ring and the c-th positioning nodecRepresents the average single-hop distance, miret, of the c-th positioning nodecRepresents the minimum forwarding number, mit, required for communication between the positioning node and the c-th positioning nodecThe minimum communication time of the positioning bracelet and the c-th positioning node is shown, sp represents the propagation speed of the electromagnetic wave, and alpha and beta represent preset weight coefficients.
When the measurement distance of each positioning node is calculated, the calculation is not only carried out through the average single forwarding distance and the minimum forwarding times, but also the minimum communication time is added for calculation, so that the error of the measurement distance caused by the calculation error of the average single forwarding distance and the minimum forwarding times can be effectively avoided, the calculation of the measurement distance is more accurate, and more accurate measurement distance data can be provided for the position calculation of the subsequent positioning bracelet.
In one embodiment, the position of the positioning bracelet is obtained by:
according to the measurement distance set { td) of location bracelet and N location nodescC belongs to N, and the following equation is established:
in the above formula, (x, y) represents the position of the positioning bracelet, (x)c,yc) Denotes the position of the c-th positioning node, c ∈ [1, N]N denotes the total number of positioning nodes, tdcThe measured distance between the positioning bracelet and the c-th positioning node is represented;
the above equation can be changed to an equation of the form:
BX＝c
solving the above equation, the solution can be:
represents a solution of the above equation;
the residual error of the above linear regression equation is recorded as resie0,
Will be aggregated { tdcSelecting M elements in c (belonged to N) to form a candidate set Rj,
To pair
The non-repeated candidate sets are respectively calculated to obtain
Solution of a set of linear equations
Then, find out
Residual resie of each setj，
The final solution of equation (1) is obtained by weighted summation of the following equations
According to equation X, the position (X, y) of the location bracelet is solved.
The position of the positioning bracelet is calculated by establishing a linear equation set, and a triangular positioning mode is not simply adopted, so that the positioning accuracy is improved, and if only 3 measuring distances are selected for positioning, errors are possibly selectedLarge measurement distances cause inaccuracies in the positioning. And a linear regression equation set is established, a plurality of measuring distances are simultaneously established, and the position of the positioning bracelet can be accurately obtained. When solving the linear equation set, pass CNRespectively calculating the solution of the linear equation set by the M non-repeated candidate sets, and then taking the residual error of the candidate set as the weight to obtain CNAnd performing weighted fusion on the solutions of the M linear equation sets, so as to obtain the solution of a linear regression equation established by the measurement distance sets of the positioning bracelet and the N positioning nodes, and obtain the accurate coordinates of the positioning bracelet.
In one embodiment, the common node is configured to communicate with the positioning bracelet and transmit the positioning data to the positioning node, and the positioning node is configured to transmit the positioning data to the base station;
for a common node h in the wireless sensor network, the common node h receives a plurality of forwarding times acquisition data packets from a c-th positioning node, obtains the forwarding times of the plurality of forwarding times acquisition data packets, adds 1 to the forwarding times of the forwarding times acquisition data packets with the minimum numerical value, and takes the obtained numerical value as the minimum forwarding times required by communication between the common node h and the c-th positioning node, wherein the minimum forwarding times required by communication between the common node h and different positioning nodes are N in total due to N positioning nodes;
after the common node h receives the positioning data from the positioning bracelet, selecting a positioning node d corresponding to the minimum forwarding time with the minimum value from the N minimum forwarding times as a receiving target of the positioning data, wherein the d belongs to [1, N ];
the common node h calculates the communication energy efficiency ratio index coindex between the common node h and the positioning node dd,hIf coindexd,hLess than a preset threshold cindenxthre of communication energy efficiency ratiod,hIf not, the common node h selects another common node with the minimum forwarding times required by communication with the positioning node d from the neighbor nodes of the common node h, and forwards the positioning data to the other common node;
the communication energy efficiency ratio index is calculated in the following way:
in the formula, mioretomiAnd miorettmiRespectively representing the minimum value of the minimum forwarding times and the sub-minimum value of the minimum forwarding times required by the communication between the positioning node d and the neighbor nodes of the common node h,
mioretomaand miorettmaRespectively representing the maximum value of the minimum forwarding times and the second maximum value of the minimum forwarding times required for communication with the positioning node d in the neighbor nodes of the common node h, K representing the set of the neighbor nodes of the common node h, 2noK representing the total number of elements in K, mioretkRepresenting the minimum number of hops, mioret, required for communication between the kth element of the set K and the positioning node dhRepresenting the minimum number of hops required for communication between the regular node h and the positioning node d.
According to the embodiment of the invention, the communication between the common node h and the positioning node can be adaptively switched between direct transmission and indirect transmission, so that the service life of the common node h and the service life of the whole wireless sensor network can be prolonged. When the common node h is too far away from the positioning node, namely the communication energy efficiency ratio is smaller than a preset communication energy efficiency ratio threshold value, the energy of the common node h can be saved by adopting an indirect transmission mode, because the transmission energy consumption is also rapidly increased along with the increase of the transmission distance, the phenomenon that the energy of the common node h is consumed too quickly due to direct transmission is avoided. And the long-distance transmission is not favorable for ensuring that the positioning data can be accurately and efficiently sent to the sink node, and more time is probably needed for error correction. And if the neighbor node is closer to the positioning node d, the larger the communication energy efficiency ratio index is, and then the common node h can be controlled to transmit the positioning data to the positioning node by using a profile transmission mode. The method is beneficial to balancing the energy consumption of common nodes in the wireless sensor network, and the overall working time of the wireless sensor network is prolonged.
In one embodiment, the energy efficiency ratio index is updated by:
firstly, whether updating is needed or not is judged regularly through the following conditions:
in the formula, xi1And xi2Representing a predetermined scale factor, EleftRepresents the current residual energy of the normal node h, EintRepresenting the initial energy of the ordinary node h, Eleft,kRepresents the current residual energy, E, of the kth element in the set K of neighbor nodes of the regular node hthreRepresenting a preset judgment threshold value;
if the above conditions are met, the common node h updates the communication energy efficiency ratio index in the following manner:
conindex'd＝conindexd-f(ψ)
where ψ denotes a preset adjustment coefficient and σ denotes a preset positive real number.
According to the embodiment of the invention, whether the communication energy efficiency ratio index needs to be updated or not is judged regularly, so that the energy of the common node h is saved. When the judgment condition is set, the current residual energy of the common node h and the residual energy difference degree between the neighbor node of the common node h and the common node h are considered, and when the residual energy of the common node h is smaller, the communication energy efficiency ratio index is more rapidly updated, so that the service life of the common node h is prolonged; when the sum of the difference values of the residual energy of the common node h and the neighbor nodes thereof is greater than 0, the residual energy of the common node h is represented to be more, so that the reduction range of the communication energy efficiency ratio index is smaller, and when the sum of the difference values of the residual energy of the common node h and the neighbor nodes thereof is less than or equal to 0, the residual energy of the common node h is represented to be lower than the general residual energy of the neighbor nodes thereof, so that the reduction range of the communication energy efficiency ratio index is larger. The long-time monitoring of the position of the personnel in the case handling center is realized.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. A people positioning system, characterized in that it comprises:
the data acquisition module is used for acquiring positioning data of personnel in a case handling center;
the data storage module is used for storing the positioning data;
the early warning module is used for judging the position of the personnel in the case handling center according to the positioning data and/or judging whether the stay time of the personnel in the case handling center at the position meets a preset early warning condition, and if so, sending an alarm prompt to related workers;
and the query module is used for querying the historical positioning data of the personnel in the case handling center according to the identity information.
2. A personnel location system as claimed in claim 1 wherein the personnel of the office centre include police and criminal suspects.
3. The personnel positioning system of claim 1, wherein said data acquisition module comprises a positioning bracelet and a wireless sensor network; the wireless sensor network comprises a plurality of wireless sensor nodes and a communication base station, the positioning bracelet is communicated with the wireless sensor network, and the positioning bracelet sends positioning data of the positioning bracelet to the data storage module at regular time through the wireless sensor network.
4. The personnel locating system of claim 1, wherein said predetermined pre-alarm condition comprises:
the position of the personnel of the office center belongs to an area which is forbidden to enter and/or the length of time that the personnel of the office center stay at the position exceeds a preset stay time threshold value.
5. The personnel positioning system of claim 1, characterized in that the personnel positioning system of the case handling center further comprises a display module, wherein the display module is used for generating a positioning map of the case handling center, generating an activity track according to the historical positioning data obtained by the query module, and displaying the activity track on the positioning map.
6. The personnel positioning system of claim 5, wherein the case handling center personnel positioning system further comprises a video acquisition module, wherein the video acquisition module is used for acquiring video information for monitoring case handling center personnel and sending the video information to the data storage module for storage;
the display module displays the activity track of the personnel handling the case on the positioning map and simultaneously displays the video information for monitoring the personnel handling the case at the center.
7. The personnel positioning system of claim 3, wherein said wireless sensor nodes comprise positioning nodes and common nodes, the positions of said positioning nodes are known, the number of said positioning nodes is multiple, said positioning data comprises the minimum forwarding times required when said positioning bracelet and each positioning node communicate respectively, the average single forwarding distance of each positioning node, the number of said positioning bracelet and the minimum communication time between said positioning bracelet and said positioning node.
8. The personnel positioning system of claim 7, wherein the minimum number of forwarding times required for the positioning bracelet to communicate with each positioning node is obtained by:
for the c-th positioning node, a forwarding number acquisition data packet is sent to the positioning bracelet in a broadcasting mode, after a common node or other positioning nodes receive the forwarding number acquisition data packet, the value of the forwarding number acquisition data packet in the forwarding number acquisition data packet is added with 1, and then the forwarding number is broadcasted, wherein c belongs to [1, N ], and N represents the total number of the positioning nodes;
the positioning bracelet receives a plurality of forwarding times acquisition data packets from the c-th positioning node, obtains the forwarding times of the plurality of forwarding times acquisition data packets, adds 1 to the forwarding times of the forwarding times acquisition data packets with the minimum numerical value, and takes the obtained numerical value as the minimum forwarding times required by communication between the positioning bracelet and the c-th positioning node.
9. A personnel positioning system according to claim 8, characterized in that the average single-hop distance of each positioning node is obtained by:
for the c-th positioning node, broadcasting a single-time forwarding distance calculation packet containing the position of the c-th positioning node in the wireless sensor network, and broadcasting the c-th positioning node after the common node receives the single-time forwarding distance calculation packet and adds 1 to the forwarding times of the single-time forwarding distance calculation packet contained in the single-time forwarding distance calculation packet;
for the c-th positioning node, after receiving a plurality of single-time forwarding distance calculation packets from the positioning node d, the c-th positioning node adds 1 to the forwarding times of the single-time forwarding distance calculation packet with the smallest value among the forwarding times of the plurality of single-time forwarding distance calculation packets, and takes the obtained value as the minimum forwarding time jum between the c-th positioning node and the d-th positioning nodec,d，c∈[1,N]N represents the total number of positioning nodes, D ∈ D, D represents the set of all positioning nodes except the c-th positioning node in the wireless sensor network;
the c positioning node calculates the average single forwarding distance according to the minimum forwarding times of the c positioning node and other positioning nodes:
in the formula, avehdcRepresents the average single-hop distance, x, of the c-th positioning nodecAnd ycRespectively representing the abscissa and ordinate, x, of the c-th positioning nodedAnd ydRespectively representing the abscissa and the ordinate of the D-th positioning node in D.
10. The personnel positioning system of claim 9, wherein the minimum communication time of the positioning bracelet with the positioning node is obtained by:
for a forwarding number acquisition data packet sent by a c-th positioning node, the forwarding number acquisition data packet comprises the sending time of the forwarding number acquisition data packet, and after receiving the forwarding number acquisition data packet, a common node or other positioning nodes write the time of receiving the forwarding number acquisition data packet, the time of broadcasting the forwarding number acquisition data packet and the self ID in the forwarding number acquisition data packet;
acquiring a data packet according to the forwarding times corresponding to the minimum forwarding times, and calculating the minimum communication time between the positioning bracelet and the c-th positioning node:
in the formula, mitcMinimum communication time, t, of the positioning bracelet and the c-th positioning nodese,gAnd tar,gRespectively showing the time when the G-th wireless sensor node participating in the forwarding process broadcasts the forwarding number acquisition data packet and the time when the forwarding number acquisition data packet is received, G showing the set of the wireless sensor nodes participating in the forwarding process, and tse,cIndicating the moment t of the c-th positioning node sending the forwarding times acquisition data packetar,cAnd the time when the positioning bracelet receives the forwarding times of the data packet acquired by the h positioning node is shown.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826913.4A CN111935634B (en) | 2020-08-17 | 2020-08-17 | Personnel positioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826913.4A CN111935634B (en) | 2020-08-17 | 2020-08-17 | Personnel positioning system |
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| CN111935634A true CN111935634A (en) | 2020-11-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205179104U (en) * | 2015-11-19 | 2016-04-20 | 浙江大学城市学院 | Complete piping system is seen to accused's electronics based on multiple communication mode |
| US20160240063A1 (en) * | 2013-10-25 | 2016-08-18 | Beijing Qihoo Technology Company Limited | Position information prompting method, device and system |
| CN108257070A (en) * | 2018-02-24 | 2018-07-06 | 杭州数梦工场科技有限公司 | Suspect's localization method, device, electronic equipment and storage medium |
| CN109345191A (en) * | 2018-08-30 | 2019-02-15 | 浙江亨百信息技术有限公司 | A kind of handle a case control system and its method based on artificial intelligence |
| CN109379716A (en) * | 2018-11-22 | 2019-02-22 | 上海道枢信息技术有限公司 | A kind of indoor orientation method and system for safety monitoring project |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160240063A1 (en) * | 2013-10-25 | 2016-08-18 | Beijing Qihoo Technology Company Limited | Position information prompting method, device and system |
| CN205179104U (en) * | 2015-11-19 | 2016-04-20 | 浙江大学城市学院 | Complete piping system is seen to accused's electronics based on multiple communication mode |
| CN108257070A (en) * | 2018-02-24 | 2018-07-06 | 杭州数梦工场科技有限公司 | Suspect's localization method, device, electronic equipment and storage medium |
| CN109345191A (en) * | 2018-08-30 | 2019-02-15 | 浙江亨百信息技术有限公司 | A kind of handle a case control system and its method based on artificial intelligence |
| CN109379716A (en) * | 2018-11-22 | 2019-02-22 | 上海道枢信息技术有限公司 | A kind of indoor orientation method and system for safety monitoring project |
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