CN108124004B - A kind of police service comprehensive supervising platform system - Google Patents
A kind of police service comprehensive supervising platform system Download PDFInfo
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- CN108124004B CN108124004B CN201711305557.6A CN201711305557A CN108124004B CN 108124004 B CN108124004 B CN 108124004B CN 201711305557 A CN201711305557 A CN 201711305557A CN 108124004 B CN108124004 B CN 108124004B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06311—Scheduling, planning or task assignment for a person or group
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
- G07C1/10—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people together with the recording, indicating or registering of other data, e.g. of signs of identity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
- H04L67/025—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP] for remote control or remote monitoring of applications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/52—Network services specially adapted for the location of the user terminal
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
Abstract
The present invention relates to a kind of police service comprehensive supervising platform systems.The present invention includes police inspector's system, and the police service comprehensive supervising platform system further includes forensics instrument cloud system, alarm and command system, GIS information system, weapons management monitoring system, and each system is interconnected by platform.The present invention provides a kind of police service comprehensive supervising platform system, it realizes and fine-grained management is carried out to policeman, pass through technological means, with informationization, network turns to carrier, promote the intelligent Application supervised on the net, it is on duty to public security organ and its people's police's law enforcement, the case where servicing the masses and internal control carries out comprehensive, dynamically, real-time supervision and check, make from connect deal with emergencies and dangerous situations to each link of law enforcement whole process supervision, promote law enforcement standardization construction, innovate police inspector's mechanism, improve the fining and scientific level of public security organ's policing administration, promote police inspector's efficiency, the masses are promoted to the satisfaction of public security organ.
Description
Technical field
The invention belongs to information technology fields, and in particular to a kind of police service comprehensive supervising platform system.
Background technique
Police service comprehensive supervising platform system turns to carrier by technological means, with information-based, network, what promotion was supervised on the net
The case where intelligent Application, the service masses on duty to public security organ and its people's police's law enforcement and internal control, carries out comprehensive, dynamic
State, real-time supervision and check promote law enforcement standardization construction, innovation from the whole process supervision dealt with emergencies and dangerous situations to each link of law enforcement is connect
Police inspector's mechanism improves the fining and scientific level of public security organ's policing administration, promotes police inspector's efficiency, can be effective
The masses are promoted to the satisfaction of public security organ.
With building up for public security organ's informationization supervisor's system, administrative department of public security organ can pass through audio, video, net
On handle a case equal subsystems, grassroots public security agencies are connect deal with emergencies and dangerous situations, law enforcement, the policing Works such as window services are monitored in real time,
All kinds of problems in discovery in time and correction grassroots public security agencies' policing Work.But current information system is to policeman's real value
Diligent state, responding track, alert tool such as use at the police services information, can not real-time tracking, dynamic can not be carried out and managed.
With the development of Internet information technique, the positioning system based on GPS is more and more perfect, but in police GIS
System platform, does not occur a kind of automatic command and guide algorithm that can be realized based on GIS information system, and urgent need will provide one
Police automatic command and guide algorithm of the kind based on GIS information system, can be improved the efficiency of turning out for work of people's police, and realization turns out for work to people's police
The real-time tracking of track.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of police service comprehensive supervising platform system, realization refines policeman
Management turns to carrier with information-based, network, promotes the intelligent Application supervised on the net by technological means, to public security organ and
Its people's police law enforcement is on duty, services the case where masses and internal control carries out comprehensive, dynamic, real-time supervision and check.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of police service comprehensive supervising platform system, the police service comprehensive supervising platform system include police inspector's system,
Forensics instrument cloud system, alarm and command system, GIS information system, weapons management monitoring system, each system are interconnected by platform,
Wherein:
Police inspector's system includes video monitoring system, high definition bayonet system, detention house sound and image monitoring system in the street
System, internal sound and image monitoring system, window evaluation system；
The forensics instrument cloud system includes audio frequency and video acquisition terminal and Cloud Server, and audio frequency and video acquisition terminal is to holding
Method audio frequency and video is acquired, and is uploaded to Cloud Server storage；
The alarm and command system includes phone queue scheduling machine, cti server, CAD platform, database
Server, digital recording server can monitor area under one's jurisdiction duties people's police and its duties state in real time.
The GIS information system includes digital radio station individual soldier, vehicle-mounted digital radio station, and it is fixed to carry out position to individual soldier and vehicle
Position tracking.
The weapons management monitoring system includes NFC label, bluetooth, police digital radio station, GIS platform, intelligent gun
Cabinet carries out effective positioning control in real time to gun, is realized by following steps:
Step 1. optimizes rifle people's police patrol route location information in generalized information system by Kalman filtering algorithm；
Step 2. carries out radio range, comparison by the self-positioning algorithm of radio, to the radio signal that firearms issue
Whether people's police go on patrol anchor point consistent with firearms radio signal orientation distance.
Wherein, technical solution described herein is also configured with photosensitive semiconductor ceramics power plant module, when illumination is to photosensitive
When on semiconductive ceramic power plant module, under the action of photon energy, light-sensitive material, which generates carrier, increases conductance, that is, generates
Photoconductive effect.The material component and composition by weight of the photosensitive semiconductor ceramics power plant module match are as follows: SiO230-40 parts,
1-5 parts of CdS, 2-4 parts of CdSe, 0.5-1 parts of Ag, Al2O35-10 parts, ZrO21-5 parts, 5-8 parts of titanium carbide, carbon fiber 1-5
Part, 15-20 parts of silicon nitride, 10-15 parts of silicon carbide.
It is preferred that the material component and composition by weight of the photosensitive semiconductor ceramics power plant module match are as follows: SiO230 parts,
1 part of CdS, 2 parts of CdSe, 0.5 part of Ag, Al2O35 parts, ZrO21 part, 5 parts of titanium carbide, 1 part of carbon fiber, 15 parts of silicon nitride, carbon
10 parts of SiClx.
It is preferred that the material component and composition by weight of the photosensitive semiconductor ceramics power plant module match are as follows: SiO240 parts,
5 parts of CdS, 4 parts of CdSe, 1 part of Ag, Al2O310 parts, ZrO25 parts, 8 parts of titanium carbide, 5 parts of carbon fiber, 20 parts of silicon nitride, carbon
15 parts of SiClx.
Beneficial effect
Technical solution of the present invention has the following advantages that, is in particular in:
(1) present invention interconnects with public business information system, with the service applications such as alarm and command system, generalized information system
System docking and data sharing optimize information-based integrated stand with new information technologies such as big data, cloud computing, Internet of Things
Structure makes a kind of police service comprehensive supervising platform of optimization, and it is horizontal to promote safety construction of modern.
(2) police service comprehensive supervising platform system is by realizing automatic row on duty and duties essential information acquisition typing
Class is mentioned for the scheduling of quick police strength in conjunction with GIS, GPS be vehicle-mounted and individual soldier's positioning system and then be that command centre realizes flattening commander
For powerful guarantee.
(3) duties of policeman, occurrences in human life basic condition, equipment situation on duty, police service area on duty, personnel checking-up situation are integrated
Overall arrangement together is conducive to science, efficiently management team, improves the fighting capacity of troop, public security management portion is effectively reduced
Door management cost, improves police strength utilization efficiency.
(4) the photosensitive semiconductor ceramics power plant module function admirable, homogeneous, operating temperature range is wide, conversion effect
Rate can reach 15-25%.
Detailed description of the invention
Fig. 1 is present system block diagram；
Fig. 2 is road abstract schematic；
Fig. 3 is that the SEM of photosensitive semiconductor ceramics power plant module schemes；
In figure, the existing police inspector's system of 1-, 2- forensics instrument cloud system, 3-GIS information system, 4- alarm and command system, 5-
Weapons management monitoring system.
Specific embodiment
Below in conjunction with the embodiment of the present invention and attached drawing, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
As shown in Figs. 1-2, the police service comprehensive supervising platform system include police inspector's system, forensics instrument cloud system,
Alarm and command system, GIS information system, weapons management monitoring system, each system are interconnected by platform, in which:
Police inspector's system includes video monitoring system, high definition bayonet system, detention house sound and image monitoring system in the street
System, internal sound and image monitoring system, window evaluation system interconnect existing supervisor's information system and public business information system mutual
It is logical, dock with business application systems such as alarm and command system, generalized information systems and data sharing, by technological means, with informationization, net
Network turns to carrier, promotes the intelligent Application supervised on the net, the service masses on duty to public security organ and its people's police's law enforcement and
The case where internal control, carries out comprehensive, dynamic, real-time supervision and check.
Forensics instrument cloud system includes audio frequency and video acquisition terminal and Cloud Server, and audio frequency and video acquisition terminal is to law enforcement audio
Video is acquired, and is uploaded to Cloud Server storage；Constituent parts Jie Chu110Shi command centre can issue list of receiving a crime report, list of receiving a crime report
Number is unique, and singly number or receive a crime report people's police's name, warning signal, the unit of being received a crime report by system typing can inquire and check on-site law-enforcing
Video and audio material.System provides statistical query function, can be inquired according to each element (unit, people's police, single number of receiving a crime report) etc. existing
Law enforcement video and audio, and can real time inspection, and can be with 110 alarm receiving system automatic comparisons.
The alarm and command system includes public telephone network, phone queue scheduling machine, cti server, area of computer aided tune
Platform, database server, digital recording server are spent, phone queue scheduling machine is connected with public telephone network, and the other end and CTI take
Business device connection, cti server connection are connect with CAD platform, database server, digital recording server, can be real
When monitoring area under one's jurisdiction duties people's police and its duties state.
GIS information system includes digital radio station individual soldier, vehicle-mounted digital radio station, to individual soldier and vehicle carry out position positioning with
Track, police service comprehensive supervising platform system is to rely on GPS system based on generalized information system, real in conjunction with policeman individual soldier's positioning system
When understand the position of policeman on duty, be subordinate to department, it is affiliated it is on duty leader, task dispatching information on duty, provided for command centre leader
In real time, effective information, while dispatch command can be timely and effectively issued again, realize intelligence commander.
Weapons management monitoring system includes NFC label, bluetooth, police digital radio station, GIS platform, intelligent gun cabinet, to rifle
Zhi Jinhang effectively positioning control in real time, is realized by following steps:
Step 1. optimizes rifle people's police patrol route location information in generalized information system by Kalman filtering algorithm；
Step 2. carries out radio range, comparison by the self-positioning algorithm of radio, to the radio signal that firearms issue
Whether people's police go on patrol anchor point consistent with firearms radio signal orientation distance.
The weapons management monitoring system use technology of Internet of things, service revolver to patrol police and carry out comprehensive management, using NFC,
Bluetooth, GIS platform, installs radio transmitting apparatus to firearms at police digital radio station short data application, realizes the rifle to gun
Branch application and audit, gun get and give back, extension request, loss alarm, the overall process pipe for going out rifle alarm, alarm linkage scheme
Control, forms complete firearm management information platform, carries out effective positioning control in real time to gun.It really realizes with rifle people's police day
The quick disposition of the effective management and emergency event often gone on patrol, the management water of police equipment is significantly promoted by technological means
It is flat, it is realized by following steps:
Step 1. positions armed people's police's patrol route in generalized information system；As illustrated in fig. 2, it is assumed that user is from node 8
Moving towards node 9, wherein G point is anchor point coordinate, and P point is user's physical location, then Ek indicates anchor point to user's physical location
Error, the error be position error and anchor point coordinate conversion error synthesis, segmental arc [8,9] equation expression are as follows:
Y=kx+b (X8<x<X9) (1)
Wherein: the slope of segmental arc [8,9]Intercept is b=X8-kY8。
Establish the Kalman filtering discretization equation of state (2) and formula (3) of user movement.
Un+1=φ UK+ωK (2)
Vk=HVK+vk (3)
Using original anchor point coordinate G and velocity information Vx and Vy as external observation amount, the observation of the observational equation of system
Variable is A=(Xk, Yk, Vx, Vy), and W (k) is white Gaussian noise, equation R.The observing matrix of observational equation are as follows:
When user advances on certain road, tracing point meets road and plays effect of contraction to user's travel condition,
Constraint condition as system model.Path equation formula (1), system state equation (2) and observation equation (3) constitute road
The system model of constraint condition can derive that the Kalman filtering of with constraint conditions is calculated according to generalized least square method principle
Method, algorithmic formula are as follows:
T is the renewal time of kalman filter state estimation, P is tracing point physical location, the observation that H is observational equation
Matrix, Q are variance, X, and Y is the location components in the direction x and the direction y.
Step 2. carries out radio-positioning calculating to the radio signal that people's police's firearms issue, and hyperbolic fix method is to pass through
Positioning is realized to the distance between subscriber computer in three or multiple base stations.Three-dimensional space hyperbolic fix equation are as follows:
Assuming that the positioning signal angular frequency that main website issues is ω, then positioning signal can be denoted as:
P=cos ω t (1)
Enabling extension station to the distance between main website is D, and wave transmissions speed is c, and the positioning signal that extension station demodulates indicates
Are as follows:
S=cos [ω (t+D/c)] (2)
Similarly, the distance of extension station to subscriber computer is R '.User receives and demodulates the positioning signal, obtains:
S "=cos ω (t+D/c+R'/c) (3)
Similarly, the distance of main website to subscriber computer is R ".User receives and demodulates the positioning signal, obtains:
S " '=cos [ω (t+R "/c)] (4)
It is sent into user's phase demodulation machine by formula (3) (4), obtains user to the phase difference between main website and any extension station are as follows:
△ θ=ω [(D+R'-R ")/c] (5)
Corresponding range difference are as follows: △ R=R'-R "=△ θ c/ ω-D (6)
The people's police's patrol route anchor point and firearms radio-positioning distance being calculated by discriminating step 1 and step 2
Whether meet, gun situation can be monitored online.
It with technology of Internet of things, services revolver to patrol police and carries out comprehensive management, utilize NFC, bluetooth, police digital radio station short data
Using, GIS platform, intelligent gun cabinet scheme, realization the gun application and audit of gun, gun are got and are given back, extension Shen
Please, loss alarm, out rifle alarm, the overall process control of alarm linkage scheme, form complete firearm management information platform, to rifle
Zhi Jinhang effectively positioning control in real time.Really realize the quick place of effective management and emergency event with the daily patrol of rifle people's police
It sets, the management level of police equipment is significantly promoted by technological means.
The police service comprehensive supervising platform system being connected to each other with GIS, alarm and command system:
Administrative department is to the real-time understanding of area under one's jurisdiction police strength and real time monitoring.System is daily with the reflection of digitized formal truth
Available police strength number and be currently executing the police strength quantity of duties, management duties can be arranged according to different duties types
Plan.Meanwhile system can reflect in real time in conjunction with map and hand platform location information each police strength in current area under one's jurisdiction duties state and
Police strength distribution situation.Reinforce the supervision of duties management process, strengthens post condition managing, grasp area under one's jurisdiction public security situation and police strength comprehensively
Distribution situation；Implement quickly and effectively command scheduling, improve instruction issuing/acquisition timeliness, accuracy, to disposal process into
The effective supervision and management of row；Reinforce the formulation of defendance/task ready to go out on duty and executes the dynamic supervision of process.
Police service comprehensive supervising platform system realizes duties supervision and examination, realization arrange an order according to class and grade management, duties put on record, statistical query
Etc. functions；Study and judge achievement according to alert, realize the deployment of keypoint part police strength, patrol regional planning, patrol supervision check, patrol duty
Business examination etc..Realize the work such as the importing of running service information, the inquiry of duties information, duties Information Statistics assessment, duties examination
It is required that.Police service comprehensive supervising platform system realizes that policeman carries out fine-grained management, and real-time exhibition police strength attendance, policeman receive
Time, the case Deal with Time, responding track, process of dealing with emergencies and dangerous situations retrospect, responding amount, daily patrol rail at the scene of reporting a case to the security authorities are reached after group is alert
Mark etc. can monitor area under one's jurisdiction duties people's police and its duties state in real time, implement flattening commander, improve event handling efficiency.It is logical
Technological means are crossed, carrier is turned to information-based, network, promotes the intelligent Application supervised on the net, to public security organ and its people
Police's law enforcement is on duty, services the case where masses and internal control carries out comprehensive, dynamic, real-time supervision and check.From connect deal with emergencies and dangerous situations to
The whole supervision of each link of law enforcement, promotes law enforcement standardization construction, innovates police inspector's mechanism, improve public security organ's police service
The fining of management and scientific level promote police inspector's efficiency, promote the masses to the satisfaction of public security organ.
Finally, above embodiments and attached drawing are only used to illustrate the technical scheme of the present invention and not to limit it, although by above-mentioned
Embodiment is described in detail the present invention, however, those skilled in the art should understand that, can in form and carefully
Various changes are made to it on section, without departing from claims of the present invention limited range.
Claims (1)
1. a kind of police service comprehensive supervising platform system, it is characterised in that: the police service comprehensive supervising platform system includes police service
Supervisor's system, forensics instrument cloud system, alarm and command system, GIS information system, weapons management monitoring system, each system pass through platform
It interconnects, in which:
Police inspector's system includes video monitoring system, high definition bayonet system, detention house sound and image monitoring system in the street, interior
Portion's sound and image monitoring system, window evaluation system interconnect existing supervisor's information system with public business information system, with
The docking of the business application systems such as alarm and command system, generalized information system and data sharing are turned to by technological means with information-based, network
Carrier promotes the intelligent Application supervised on the net, the service masses on duty to public security organ and its people's police's law enforcement and inner tube
The case where reason, carries out comprehensive, dynamic, real-time supervision and check；
Forensics instrument cloud system includes audio frequency and video acquisition terminal and Cloud Server, and audio frequency and video acquisition terminal is to law enforcement audio frequency and video
It is acquired, and is uploaded to Cloud Server storage；Constituent parts Jie Chu110Shi command centre can issue list of receiving a crime report, single number of receiving a crime report
Uniquely, received a crime report by system typing singly number or receive a crime report people's police's name, warning signal, unit can inquire and check on-site law-enforcing regard sound
Frequency data；System provide statistical query function, can according to each element inquiry to on-site law-enforcing video and audio, and can real time inspection, and
It can be with 110 alarm receiving system automatic comparisons；
The alarm and command system include public telephone network, phone queue scheduling machine, cti server, CAD platform,
Database server, digital recording server, phone queue scheduling machine are connected with public telephone network, the other end and cti server
Connection, cti server connection connect with CAD platform, database server, digital recording server, can supervise in real time
Control area under one's jurisdiction duties people's police and its duties state；
GIS information system includes digital radio station individual soldier, vehicle-mounted digital radio station, carries out position locating and tracking to individual soldier and vehicle, alert
Comprehensive supervision plateform system be engaged in based on generalized information system, is to rely on GPS system, it is real-time in conjunction with policeman individual soldier's positioning system
Solve the position of policeman on duty, be subordinate to department, affiliated leader on duty, mission bit stream on duty, for command centre leader provide it is real-time,
Effective information, while dispatch command can be timely and effectively issued again, realize intelligence commander；
Weapons management monitoring system includes NFC label, bluetooth, police digital radio station, GIS platform, intelligent gun cabinet, to gun into
The effective positioning control in real time of row, is realized by following steps:
Step 1. optimizes rifle people's police patrol route location information in generalized information system by Kalman filtering algorithm；
Step 2. carries out radio range by the self-positioning algorithm of radio, to the radio signal that firearms issue, and compares people's police
Whether consistent with firearms radio signal orientation distance go on patrol anchor point；
The weapons management monitoring system use technology of Internet of things, service revolver to patrol police and carry out comprehensive management, using NFC, bluetooth,
Police digital radio station short data application, GIS platform install radio transmitting apparatus to firearms, realize the gun Shen to gun
It please gets and gives back with audit, gun, extension request, loss alarm, the overall process control for going out rifle alarm, alarm linkage scheme,
Complete firearm management information platform is formed, effective positioning control in real time is carried out to gun；It really realizes daily with rifle people's police
The quick disposition of the effective management and emergency event of patrol, the management level of police equipment is significantly promoted by technological means,
It is realized by following steps:
Step 1. positions armed people's police's patrol route in generalized information system；Assuming that user moves towards the wherein G of node 9 from node 8
Point is anchor point coordinate, and P point is user's physical location, then Ek indicates error of the anchor point to user's physical location, the error
Equation for the synthesis of position error and anchor point coordinate conversion error, segmental arc indicates are as follows:
Y=kx+b, X8< x < X9 (1)
Wherein: the slope of segmental arcIntercept is b=X8-kY8；
Establish the Kalman filtering discretization equation of state (2) and formula (3) of user movement；
Un+1=φ UK+ωK (2)
Vk=HVK+vk (3)
Using original anchor point coordinate G and velocity information Vx and Vy as external observation amount, the observational variable of the observational equation of system
It is white Gaussian noise, equation R for A=(Xk, Yk, Vx, Vy), W (k)；The observing matrix of observational equation are as follows:
When user advances on certain road, tracing point meets road and plays effect of contraction to user's travel condition, becomes
The constraint condition of system model；Path equation formula (1), system state equation (2) and observation equation (3) constitute road constraint
The system model of condition can derive the Kalman filtering algorithm of with constraint conditions according to generalized least square method principle, calculate
Method formula is as follows:
T is the renewal time of kalman filter state estimation, P is tracing point physical location, the observation square that H is observational equation
Battle array, Q are variance, X, and Y is the location components in the direction x and the direction y；
Step 2. carries out radio-positioning calculating to the radio signal that people's police's firearms issue, and hyperbolic fix method is by three
Or positioning is realized to the distance between subscriber computer in multiple base stations；Three-dimensional space hyperbolic fix equation are as follows:
Assuming that the positioning signal angular frequency that main website issues is ω, then positioning signal can be denoted as:
P=cos ω t (1)
Enabling extension station to the distance between main website is D, and wave transmissions speed is c, and the positioning signal that extension station demodulates indicates are as follows:
S=cos [ω (t+D/c)] (2)
Similarly, the distance of extension station to subscriber computer is R '；User receives and demodulates the positioning signal, obtains:
S "=cos ω (t+D/c+R'/c) (3)
Similarly, the distance of main website to subscriber computer is R "；User receives and demodulates the positioning signal, obtains:
S " '=cos [ω (t+R "/c)] (4)
It is sent into user's phase demodulation machine by formula (3) (4), obtains user to the phase difference between main website and any extension station are as follows:
Δ θ=ω [(D+R'-R ")/c] (5)
Corresponding range difference are as follows: Δ R=R'-R "=Δ θ c/ ω-D (6)
Whether the people's police's patrol route anchor point being calculated by discriminating step 1 and step 2 and firearms radio-positioning distance
Meet, gun situation can be monitored online；
It with technology of Internet of things, services revolver to patrol police and carries out comprehensive management, answered using NFC, bluetooth, police digital radio station short data
With, GIS platform, intelligent gun cabinet scheme, realization the gun application and audit of gun, gun are got and are given back, extension request,
Loss alarm, the overall process control for going out rifle alarm, alarm linkage scheme, form complete firearm management information platform, to gun
Carry out effective positioning control in real time；
The police service comprehensive supervising platform system being connected to each other with GIS, alarm and command system:
The comprehensive supervision plateform system is also configured with photosensitive semiconductor ceramics power plant module, when illumination to photosensitive semiconductor ceramics
When on power plant module, under the action of photon energy, light-sensitive material, which generates carrier, increases conductance, that is, generates photoconduction effect
It answers, material component and the composition by weight proportion of the photosensitive semiconductor ceramics power plant module are as follows: 30-40 parts of SiO2, CdS 1-5
Part, 2-4 parts of CdSe, 0.5-1 parts of Ag, 5-10 parts of Al2O3,1-5 parts of ZrO2,5-8 parts of titanium carbide, 1-5 parts of carbon fiber, nitridation
15-20 parts of silicon, 10-15 parts of silicon carbide.
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