CN108931798B - Gun off-position alarm tracking system based on UWB and Beidou/GPS technology - Google Patents
Gun off-position alarm tracking system based on UWB and Beidou/GPS technology Download PDFInfo
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- CN108931798B CN108931798B CN201710388349.0A CN201710388349A CN108931798B CN 108931798 B CN108931798 B CN 108931798B CN 201710388349 A CN201710388349 A CN 201710388349A CN 108931798 B CN108931798 B CN 108931798B
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/45—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
- G01S19/46—Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
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Abstract
The utility model discloses a gun off-position warning tracking system based on UWB and big dipper GPS technique, include: a beacon mounted within the firearm, the beacon providing UWB ranging information and firearm information to the sentry box base station in response to a UWB ranging request from the sentry box base station, the UWB ranging information being a distance of the firearm to the sentry box base station, the firearm information comprising first information and second information; the sentry box base station sends the received UWB ranging information and gun information to the command control platform and receives instructions from the command control platform; a command control platform for controlling the operation of the gun off-position alarm tracking system according to gun information received from the sentry box base station; a Beidou/GPS that provides location tracking for beacons installed in the firearm; and the operator base station receives the positioning information of the beacon and transmits the positioning information to the command control platform through an operator network.
Description
Technical Field
The invention relates to a gun off-position alarm tracking system, in particular to a cross-zone alarm and position real-time tracking and positioning for a gun, which can enable gun management staff to master gun on-position management and state information, provide alarm and positioning information when the gun is off-position, and facilitate timely investigation and searching of the gun.
Background
In recent years, several robbers and theft of army and police on-duty gun ammunition occur in various countries, and harm is brought to personal safety and social stability of people. Positioning tracking of firearms after leaving and on-site management is a problem to be solved by governments of various countries. When the gun is out of position, the gun is detected and alarmed quickly in a short time, and the gun which is out of position abnormally is positioned and tracked, so that the gun is recovered in time.
At present, the mature Beidou/GPS positioning technology is applied to off-site detection of firearms, and has a plurality of difficulties. Firstly, the off-position detection environment of the gun can appear indoors, and the Beidou/GPS signal cannot be detected indoors. And secondly, under the condition that the Beidou/GPS signals are used for opening all the time, the power consumption is high, the battery needs to be replaced frequently, and the gun support is inconvenient to use.
The conventional distance measurement technology RFID is applied to gun dislocation detection in related patents, but the RFID calculates the distance based on the radio frequency signal field intensity, so that the distance measurement results are inconsistent for different application environments, and the gun dislocation false alarm is easily caused.
Therefore, there is a need for a firearm off-position alarm tracking system that can accurately locate and alarm.
Disclosure of Invention
In order to solve the problems, the invention provides a gun off-position alarm tracking system based on the combination of UWB (Ultra wide band) and GPS/Beidou.
According to one embodiment of the present invention, there is provided a gun off-position alarm tracking system based on UWB and beidou/GPS technology, comprising: a beacon mounted within a firearm, the beacon providing UWB ranging information and firearm information to a sentry box base station in response to a UWB ranging request from the sentry box base station, the UWB ranging information being a distance of the firearm to the sentry box base station, the firearm information comprising first information and second information; the sentry box base station sends the received UWB ranging information and gun information to a command control platform and receives an instruction from the command control platform; a command control platform controlling operation of the gun off-site alarm tracking system according to gun information received from the sentry box base station; a Beidou/GPS that provides location tracking for beacons installed in the firearm; and the operator base station receives the positioning information of the beacon and transmits the positioning information to the command control platform through an operator network.
Preferably, the beacon further comprises: a low power consumption processor; a power supply to power the beacon and its components; the power supply manager is connected with the power supply and connected with the low-power-consumption processor through the control bus and is used for managing power supply to each module of the beacon; a UWB module that transmits a response pulse signal in response to a ranging request pulse signal from the kiosk base station at a first time, the kiosk base station receiving the response pulse signal at a second time, thereby calculating a time of flight of the pulse signal therebetween to determine UWB ranging information; the GPRS module is used for realizing information transmission between the beacon and the operator base station through a GPRS network; the Beidou/GPS module is used for achieving positioning information acquisition of beacons through a Beidou/GPS system; the power manager, the UWB module, the acceleration sensor, the protection micro switch, the GPRS module and the Beidou/GPS module are connected with the low-power-consumption processor through the control bus, so that the low-power-consumption processor can realize communication control and low-power-consumption control of each module of the beacon.
Preferably, the beacon further comprises: and an acceleration sensor that controls the frequency at which beacons transmit the firearm status information based on the detected acceleration.
Preferably, the beacon further comprises: and the protection micro-switch detects the installation state of the gun beacon, wherein the protection micro-switch is in a closed state when the gun beacon is normally installed inside the gun, and is in an open state when the gun beacon is removed from the gun.
Preferably, the first information includes at least one of: firearm number, beacon number, firearm status information, electric quantity information and forced dismantling information of equipment; and wherein the second information comprises at least one of: firearm number, beacon number, firearm status information, longitude and latitude information, electric quantity information and forced dismantling information of equipment.
Preferably, the sentry box base station further comprises an audible and visual alarm device, wherein the audible and visual alarm device is used for alarming low electric quantity, illegal dislocation state or forced equipment dismantling situation.
Preferably, the illegal off-position alarm distance of the sentry box base station can be set by a plurality of gears through the command control platform, and different gear alarm sounds are set to be different.
Preferably, the command control platform further has a GIS system, can display beacon detailed information, position information of off-position beacons, and the like in the whole system in real time, and can mark a beacon position in map information.
Preferably, the command and monitoring system platform may display the historical track of each beacon offline.
Preferably, the operation of the firearm off-position alarm tracking system comprises: under the condition that a gun arrives at a sentry, the Beidou/GPS is switched from an starting state to a closing state, and the UWB ranging function of the sentry box base station is started; in the gun in-place state, the UWB ranging function of the sentry box base station is always started, and the Beidou/GPS is in a dormant or closed state; under the illegal gun leaving state, the UWB ranging function of the sentry box base station is interrupted, and the Beidou/GPS is switched from the off state to the on state; and under the legal off-position state of the gun, the UWB ranging function of the sentry box base station is in an off state, and the Beidou/GPS is switched from the off state to the on state.
Other objects, features, and advantages will be apparent to one of ordinary skill in the art in view of the present disclosure and the following detailed description of the drawings.
Drawings
The accompanying drawings illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. In the drawings:
FIG. 1 shows a system architecture diagram of a gun off-position alarm tracking system based on UWB and GPS/Beidou technology according to an embodiment of the present invention;
FIG. 2 shows a schematic diagram of a communication architecture of a kiosk base station and beacons according to an embodiment of the invention;
FIG. 3 shows a schematic diagram of the internal circuitry of a beacon according to an embodiment of the invention;
FIG. 4 shows a gun-to-post status schematic diagram in accordance with an embodiment of the invention;
FIG. 5 shows a firearm in-place status schematic diagram in accordance with an embodiment of the invention;
FIG. 6 shows a schematic view of an illegal gun dislocation state according to an embodiment of the present invention; and
Fig. 7 shows a schematic diagram of a legal off-position state of a firearm according to an embodiment of the invention.
Detailed Description
The embodiment of the invention discloses a gun off-position alarm tracking system based on UWB and GPS/Beidou technologies. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the invention. It will be apparent, however, to one skilled in the art that embodiments of the invention may be practiced without these specific details.
FIG. 1 shows a system architecture diagram of a gun off-position alarm tracking system 100 based on UWB and GPS/Beidou technology according to an embodiment of the present invention. As shown in fig. 1, a firearm off-position alarm tracking system 100 according to the present invention includes a beidou/GPS 101, an operator base station 102, an operator network 103, a command control platform 104, sentry box base stations 112, 113, 114, and beacons 122, 123, 124 installed within the firearm. Although three kiosk base stations and three beacons are schematically shown in the figures, those skilled in the art will appreciate that only a specific number of kiosk base stations and beacons are listed for ease of illustration, they are not limited to the number listed, and there may be more or fewer kiosk base stations and beacons depending on the situation.
The command control platform 104 is a control core of the gun off-position alarm tracking system 100 based on UWB and GPS/beidou technology according to an embodiment of the present invention. The command control platform 104 also has a GIS system, which can display the beacon detailed information, the position information of the off-position beacon, etc. in the whole system in real time, and can mark the beacon position in the map information. Further, the command and monitoring system platform can display the historical track of each beacon offline.
The sentry box base stations 112, 113, 114 may be, for example, located at a duty sentry box, capable of determining the distance of the beacons 122, 123, 124 from the sentry box base stations 112, 113, 114 by UWB ranging techniques, and communicating with the command control platform 104 via a communications network (e.g., ethernet). FIG. 1 shows a schematic view of three conditions of a firearm completely off station, just off station, and on station. In addition, the firearm may further include an on Shift state, a legal off position state.
Further, the sentry box base stations 112, 113, 114 also comprise audible and visual alarm devices for alarming illegal out-of-position conditions and forced equipment removal conditions. For example, in accordance with one embodiment of the invention, the kiosk base stations 112, 113, 114 may sound and light based on the forced removal of the devices of the beacons 122, 123, 124. Specifically, the beacons 122, 123, 124 are embedded with anti-disassembling devices, when the anti-disassembling devices embedded in the beacons 122, 123, 124 are triggered, the forced disassembling information of the devices, which is sent by the beacons 122, 123, 124 and included in the first information or the second information, is changed into a beacon forced disassembling triggering state, so that an audible and visual alarm is triggered.
According to an embodiment of the present invention, the kiosk base stations 112, 113, 114 may also include a first camera; the first camera captures images of the range preset by the sentry box base stations 112, 113, 114 and stores the images according to the settings of the command and control platform 104.
In addition, the illegal out-of-position alarm distances of the sentry box base stations 112, 113, 114 can be set to a plurality of gears through the command control platform 104, and different gear alarm sounds are set to be different. In one embodiment of the present invention, command and control platform 104 is configured with three gear positions, e.g., 5 meters, 20 meters, 40 meters, respectively. Those skilled in the art will appreciate that more or fewer gears may be provided and that gears may be provided to a number of gears other than the illustrated number, depending on the situation.
The beacons 122, 123, 124 are installed in the firearm, have UWB ranging and GPS/beidou positioning functions, and transmit firearm information according to specific states, wherein the firearm information includes first information or second information. The first information includes at least one of: firearm number, beacon number, UWB ranging information, firearm status information, power information, and device forced removal information. The second information includes at least one of: firearm number, beacon number, firearm status information, longitude and latitude information, electric quantity information and forced dismantling information of equipment.
The Beidou/GPS 101 is a satellite navigation system utilizing GPS or Beidou positioning. The Beidou/GPS 101 may provide location tracking functions for beacons 122, 123, 124 installed in the firearm.
The carrier base station 102 receives the positioning information of the beacons 122, 123, 124 and transmits the positioning information to the command and control platform 104 via the carrier network 103 provided by the carrier.
FIG. 2 shows a schematic diagram of a communication architecture of a kiosk base station and beacon according to an embodiment of the invention. As shown in fig. 2, the command and control platform 104 and the sentry box base stations 112, 113, 114 communicate with each other, for example, the sentry box base stations 112, 113, 114 can access an internal network through ethernet to communicate with the command and control platform 104 and exchange information. The sentry base stations 112, 113, 114 establish communications with beacons 122, 123, 124, respectively. Specifically, the kiosk base stations 112, 113, 114 send ranging information to the beacons 122, 123, 124, respectively, and the beacons 122, 123, 124 send either the first information or the second information to the kiosk base stations 112, 113, 114, respectively, after receiving the ranging information. The kiosk base stations 112, 113, 114 then send the received first information or second information to the command and control platform 104. The command control platform 104 makes a decision according to the received first information or second information, and sends the decision result to the sentry box base stations 112, 113, 114.
According to an embodiment of the present invention, when the sentry box base station 112 calculates that the distance range of the beacon 122 exceeds the predetermined range set by the command and control platform 104, as shown in fig. 1, it determines that the firearm is in a completely off-duty state, and the beacon 122 immediately alarms. As will be appreciated by those skilled in the art, the alert means includes, but is not limited to, sound, light, vibration, or any combination thereof.
According to an embodiment of the present invention, for example, when the sentry box base station 113 calculates that the distance range of the beacon 123 is just at the critical point of the predetermined range set by the command and control platform 104, as shown in fig. 1, it is determined that the gun is just off duty, and the beacon 123 triggers off duty early warning and starts tracking. Specifically, the kiosk base station 113 sends a command to the beacon 123 to activate the Beidou/GPS, the beacon 123 activates the Beidou/GPS tracking function, and sends second information to the kiosk base station 113 over a communication network, such as a GPRS network.
In accordance with an embodiment of the present invention, when the sentry base station 114 calculates that the range of the beacon 124 is within a predetermined range set by the command and control platform 104, for example, as shown in FIG. 1, then the firearm is determined to be on duty and the beacon 124 may turn off the tracking function. In this case, the Beidou/GPS and GPRS functions may sleep or be off. In a preferred embodiment, the range of the beacon 124 may also be detected multiple times within a predetermined time, and the tracking function turned off again when it is determined that the captured information is stable.
Fig. 3 shows a beacon internal circuit schematic 300 according to an embodiment of the invention. As shown in fig. 3, the beacon installed in the firearm includes a power manager 301, a power source 303, a UWB module 304, an acceleration sensor 305, a protection micro switch 306, a low power consumption processor 307, a GPRS module 308, a beidou/GPS module 309, a SIM card socket 310, and a beidou antenna 311. As shown in fig. 3, the power manager 301, the UWB module 304, the acceleration sensor 305, the protection micro switch 306, the GPRS module 308, and the beidou/GPS module 309 are all connected to the low power consumption processor 307 via a control bus, so that the low power consumption processor 307 can realize communication control of each module of the beacon.
The power supply 303 is used to power the beacon and its components. The power manager 301 is connected to the power supply 303 and to the low power consumption processor 307 via a control bus for managing power supply to the modules of the beacon, and may further include, for example, a battery protection circuit, a battery charge reading circuit. In one embodiment of the invention, the power source 303 is a battery, preferably a lithium battery. Those skilled in the art will appreciate that the power supply 303 may be other forms of power supply as long as it is capable of powering a beacon within a firearm.
UWB module 304 is capable of wirelessly communicating with UWB ranging modules installed in kiosk base stations and performing ranging functions. Specifically, the UWB ranging module installed in the kiosk base station transmits a pulse signal of a requested nature at Ta1 on its timestamp, in response to which the UWB module 304 transmits a signal of a responsive nature at time Tb2, and the UWB ranging module installed in the kiosk base station receives at its own timestamp Ta2, whereby the time of flight of the pulse signal between the two modules can be calculated to determine the distance information. The ranging method mainly utilizes the flight time of signals between two asynchronous UWB ranging modules to measure the distance between nodes. Because the distance measurement method is in a linear relation with distance in the visual line environment, the result is more accurate. Let the time of the data packet sent by the UWB ranging module installed in the sentry box base station and the time of receiving the response be marked as T TOT, the time interval of the data packet received by the UWB module 304 in the beacon and the time of sending the response be marked as T TAT, then the time T TOF of the data packet in one-way flight in the air can be calculated as: t TOF＝(TTOT-TTAT)/2. Then, the distance d=c×t TOF between the two points can be calculated according to the product of T TOF and the propagation speed of the electromagnetic wave.
According to the embodiment of the invention, the UWB module 304 can further provide the electric quantity information of the built-in battery of the gun beacon and the disassembly alarm information of the disassembly alarm switch for the sentry box base station, so that low-electric quantity alarm and disassembly alarm can be realized.
The acceleration sensor 305 detects the dynamic/static state of the firearm beacon and detects the movement condition of the beacon. The acceleration sensor 305 controls the frequency at which the beacon transmits the first information or the second information based on the detected acceleration. For example, when the acceleration sensor 305 detects a first acceleration or acceleration within a first predetermined range, the first information or the second information is transmitted at a first frequency, and when the acceleration sensor 305 detects a second acceleration different from the first acceleration or acceleration within a second predetermined range different from the first predetermined range, the first information or the second information is transmitted at a second frequency different from the first frequency.
The low power processor 307 may be used to implement low power control of the beacons. According to an embodiment of the invention, when the firearm is in a fully stationary state, the beacon is in a deep sleep state, and each module is in a low power mode, including a low power processor 307; when a large displacement occurs to the firearm (an acceleration threshold value is preset), the acceleration sensor wakes up the low-power-consumption processor 307 through interruption; for a firearm in a relatively stationary state (on duty), the low power processor 307 may reduce the ranging operating frequency to reduce power consumption.
The protection micro-switch 306 detects the installation state of the gun beacon, and the low power consumption processor 307 monitors the state of the protection micro-switch 306 in real time. When the firearm beacon is normally installed inside the firearm, the protection microswitch 306 is in the closed state. When the firearm beacon is removed from the firearm, the protection microswitch 306 is in an open state. The low power processor 307 can determine whether the firearm beacon is removed from the firearm by monitoring the state of the protection micro switch 306, thereby generating a disassembly warning message in the case that the firearm beacon is determined to be removed from the firearm.
The GPRS module 308 is used to enable the transfer of information between beacons and operator base stations via a GPRS network. The Beidou/GPS module 309 is used to locate specific location information of beacons through the Beidou/GPS system. The SIM card holder 310 is connected with the GPRS module 308, and the GPRS module 308 and the beidou/GPS module 309 have a GPRS PCB 312 antenna and a beidou antenna 311, respectively.
According to the technical scheme of the invention, the states of the gun can comprise a gun on-duty state, a gun in-place state, a gun illegal off-position state and a gun legal off-position state. A detailed description of the various states is described in detail below in connection with fig. 4-7.
FIG. 4 shows a firearm on Shift schematic diagram in accordance with an embodiment of the invention. According to an embodiment of the invention, in case the firearm has not arrived at the sentry box base station, the tracking function needs to be turned on for firearm safety, that is, the Beidou/GPS and GPRS functions are turned on. For example, on an on-duty road, firearm position information needs to be tracked continuously, and an alarm needs to be raised when the firearm is out of a preset area or is not on duty within a specified time.
Specifically, in the case where the firearm with the installed beacon 124 is close to the sentry box base station 114, when the Beidou/GPS module detects that the beacon 124 is within the set capture range, the firearm with the installed beacon 124 is in an on-duty state, at which time the command control platform 104 turns off the tracking function according to the firearm state, that is, switches the Beidou/GPS from an on state to an off state (the Beidou/GPS and GPRS functions are dormant or off), and instructs the sentry box base station 114 to start ranging. The sentry base station 114 establishes communication with the beacon 124 and completes ranging and transmits the acquired gun information to the command control platform 104. As shown in fig. 4, the command control platform 104 displays the received first information in real time: firearm number (QBZ 95-0012), beacon number (XB 95-008), UWB ranging information (15 meters), firearm status information (on duty), power information (97%), and the position of the beacon (where indicated by the circled dots) is marked in the map information.
Fig. 5 shows a gun bit status schematic according to an embodiment of the invention. In the case where the firearm with the mounted beacon 124 is stable around the sentry box base station 114, the ranging function of the sentry box base station 114 is always on at this time, that is, when the firearm with the mounted beacon 124 is within a predetermined range from the sentry box base station 114 for a predetermined time, the firearm with the mounted beacon 124 is in an on-bit state, and the tracking function is in an off state (GPS/beidou and GPRS functions sleep or off). As shown in fig. 5, the command control platform 104 displays the received first information in real time: firearm number (QBZ 95-0012), beacon number (XB 95-008), UWB ranging information (15 meters), firearm status information (on duty), power information (97%), and the position of the beacon (where indicated by the circled dots) is marked in the map information.
Fig. 6 shows a schematic view of an illegal gun dislocation state according to an embodiment of the present invention. In the case where the gun with the mounted beacon 122 is far from the sentry box base station 112, when the beacon 122 is outside the set capture range, for example, the distance from the corresponding sentry box is greater than a certain distance (a certain distance greater than 50 meters in the embodiment of fig. 6), the gun with the mounted beacon 122 is in an illegally off-position state, at which time the ranging is discontinued and the Beidou/GPS is switched from an off state to an on state, that is, the tracking function is turned on, and an alarm is immediately given in the set manner. The Beidou/GPS location information is transmitted to the command and control platform 104 in real time through a GPRS network. As shown in fig. 6, the command control platform 104 displays the received first information in real time: firearm number (QBZ 95-0013), beacon number (XB 95-009), UWB ranging information (> 50 meters), firearm status information (illegal dislocation), power information (97%), and the position of the beacon (indicated by the circled dots) is marked in the map information.
Fig. 7 shows a schematic diagram of a legal off-position state of a firearm according to an embodiment of the invention. The legal off-position state is set to be started by the command control platform 104, and at this time, the ranging function is in an off state and the Beidou/GPS is switched from the off state to the on state, that is, the tracking function is started and the alarm function is released. The Beidou/GPS location information is transmitted to the command and control platform 104 in real time through a GPRS network. As shown in fig. 6, the command control platform 104 displays the received second information in real time: firearm number (QBZ 95-0012), beacon number (XB 95-008), latitude and longitude information (omitted in the figure), firearm status information (legal dislocation), power information (97%), and the position of the beacon (indicated by the circled dot) is marked in the map information.
According to the technical scheme of the invention, each beacon comprises the firearm number for uniquely identifying the firearm, and when the firearm is out of position, the basic information of the out-of-position firearm can be checked in real time, so that more analysis basis is provided for tracking and positioning.
The command control platform is matched with the sentry box base station, can receive the position information of the beacon in real time, and can correspondingly process the different states of the beacon in a targeted manner, so that the positioning accuracy and the alarm accuracy of the gun off-position alarm tracking system are improved. For example, after a gun beacon is illegally located, a command control platform and a sentry box base station start an alarm, a GPS/Beidou positioning function starts, longitude and latitude are reported in real time, position information is displayed in real time in a background GIS system of the command control platform, and corresponding historical position information can be played back.
The sentry box base station is connected with the existing camera through the Ethernet, and the sentry box base station and the existing camera send information to the command control platform and simultaneously send image information shot by the camera, so that after the gun sends out of position, the image information in a corresponding time period can be analyzed, and the gun out of position condition can be checked.
According to the invention, the ultra wideband wireless technology is adopted for information interaction in off-position detection, a beacon with the UWB technology is added on the gun, and through combined use with a command monitoring system platform, the off-position of the gun can be accurately detected at the first time and can be subjected to audible and visual alarm, and compared with the common RFID off-position detection technology, the method can be suitable for different environments to accurately carry out false alarm. And through the design of the acceleration sensor, UWB ranging frequency is adjusted in real time according to different motion states, so that response speed of gun off-position alarm is greatly improved, and the gun off-position alarm has better application prospect.
The above-described embodiments are only preferred embodiments of the present invention and are not intended to limit the present invention. It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present invention without departing from the spirit or scope of the invention. Accordingly, it is intended that the present invention encompass all modifications or variations that fall within the scope of the invention as defined by the claims.
Claims (8)
1. Gun off-site alarm tracking system based on UWB and Beidou/GPS technology, comprising:
A beacon mounted within a firearm, the beacon providing UWB ranging information and firearm information to a sentry box base station in response to a UWB ranging request from the sentry box base station, the UWB ranging information being a distance of the firearm to the sentry box base station, the firearm information comprising first information and second information;
the sentry box base station sends the received UWB ranging information and gun information to a command control platform and receives an instruction from the command control platform;
A command control platform controlling operation of the gun off-site alarm tracking system according to gun information received from the sentry box base station;
a Beidou/GPS that provides location tracking for beacons installed in the firearm; and
The operator base station receives the positioning information of the beacon and transmits the positioning information to the command control platform through an operator network;
the first information includes: firearm number, beacon number, firearm status information, power information and device forced removal information;
the second information includes: firearm number, beacon number, firearm status information, longitude and latitude information, electric quantity information and forced dismantling information of equipment;
The firearm status includes: a gun-to-post state, a gun-in-place state, a gun illegal off-position state and a gun legal off-position state;
the operations of the gun dislocation alarm tracking system comprise:
Under the condition that a gun arrives at a sentry, switching the Beidou/GPS from an starting state to a closing state, starting a UWB ranging function of the sentry box base station, and sending first information;
In a gun in-place state, the UWB ranging function of the sentry box base station is always started, and the Beidou/GPS is in a dormant or closed state, and sends first information;
under the illegal gun leaving state, the UWB ranging function of the sentry box base station is interrupted, the Beidou/GPS is switched from the off state to the on state, and first information is sent; and
And in the legal out-of-position state of the gun, the UWB ranging function of the sentry box base station is in a closed state, and the Beidou/GPS is switched from the closed state to the started state, so that second information is sent.
2. The system of claim 1, the beacon further comprising:
A low power consumption processor; a power supply to power the beacon and its components;
A power manager connected to a power source and to the low power processor via a control bus for managing power to each module of the beacon;
A UWB module that transmits a response pulse signal in response to a ranging request pulse signal from the kiosk base station at a first time, the kiosk base station receiving the response pulse signal at a second time, thereby calculating a time of flight of the pulse signal therebetween, thereby determining UWB ranging information;
the GPRS module is used for realizing information transmission between the beacon and the operator base station through a GPRS network;
The Beidou/GPS module is used for achieving the acquisition of the positioning information of the beacons through a Beidou/GPS system;
The power manager, the UWB module, the acceleration sensor, the protection micro switch, the GPRS module and the Beidou/GPS module are connected with the low-power-consumption processor through a control bus, so that the low-power-consumption processor can realize communication control and low-power-consumption control of each module of the beacon.
3. The system of claim 2, the beacon further comprising:
An acceleration sensor that controls the frequency at which the beacon transmits the firearm status information based on the detected acceleration.
4. The system of claim 2, the beacon further comprising:
and the protection micro-switch detects the installation state of the gun beacon, wherein the protection micro-switch is in a closed state when the gun beacon is normally installed inside the gun, and is in an open state when the gun beacon is removed from the gun.
5. The system of claim 1, wherein the kiosk base station further comprises audible and visual alarm means for alerting a low battery, an illegally unseated condition, or a forced removal of equipment.
6. The system of claim 1, wherein the illegal out-of-position alert distance of the kiosk base station is set to a plurality of gear settings by the command control platform and different gear alert sounds are set to be different.
7. The system according to claim 2, wherein the commander control platform further has a GIS system that displays beacon detailed information, position information of an off-position beacon, etc. in the entire system in real time, and marks a beacon position in map information.
8. The system of claim 2, wherein the command control platform displays historical tracks for each beacon offline.
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| CN110730417B (en) * | 2019-09-02 | 2021-10-22 | 四川北斗云联科技有限公司 | Gun positioning system |
| CN110865331A (en) * | 2019-10-21 | 2020-03-06 | 北京中企卓创科技发展有限公司 | Building site location base station device based on UWB communication |
| CN111918220A (en) * | 2020-08-19 | 2020-11-10 | 中安创科（深圳）技术有限公司 | Gun positioner, gun positioner system and gun positioner application method |
| CN111915863B (en) * | 2020-08-19 | 2022-03-18 | 中安创科（深圳）技术有限公司 | Gun dislocation detector, gun dislocation detector system and dynamic early warning management and control method of gun dislocation detector |
| CN112866925B (en) * | 2020-12-29 | 2023-06-13 | 杭州中芯微电子有限公司 | Intelligent gun management system and intelligent gun management equipment based on UWB positioning |
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