Disclosure of Invention
The invention provides an intelligent asset monitoring terminal based on a narrow-band Internet of things technology, which solves the problem that the use of the conventional monitoring equipment has certain limitation because the conventional monitoring equipment only has a monitoring function and cannot send a stolen signal and position the stolen object when the object is stolen.
In order to solve the technical problem, the intelligent asset monitoring terminal based on the narrowband internet of things technology provided by the invention comprises:
a central control module;
the NB-lot communication module is used for reporting data, is connected with the output end of the central control module, and the output end of the NB-lot communication module is connected with an NB-lot FPC antenna;
the positioning module is connected to the output end of the central control module, and the output end of the positioning module is connected with a satellite ceramic antenna;
the G-SENSOR is used for detecting the inclination angle of the fixed carrier and is connected to the input end of the central control module;
and the temperature sensor is connected to the input end of the central control module.
Preferably, the positioning module adopts a BDS and a GPS satellite navigation system to carry out combined positioning.
Preferably, the input end of the central control module is connected with a power supply module, a power supply conversion module and an LED lamp.
Preferably, the asset intelligent monitoring terminal based on the narrowband internet of things technology further comprises an outer shell used for bearing the central control module, the NB-lot communication module, the positioning module, the G-SENSOR, the temperature SENSOR, the power supply module, the power supply conversion module and the LED lamp, the base is installed at the bottom of the outer shell, and the air cooling adjusting mechanism is arranged inside the base.
Preferably, the base includes downside tube socket and upside tube socket, pass through connecting piece fixed connection between downside tube socket and the upside tube socket, leave the annular chamber between upside tube socket and the downside tube socket, the inside of annular chamber is provided with the sealing member, the top fixedly connected with brace table of upside tube socket.
Preferably, the sealing element comprises a sealing ring, and an annular sliding groove is formed in the inner side of the sealing ring.
Preferably, the air-cooling adjustment mechanism includes the motor, motor fixed mounting in the top of downside stack shell inner wall, the one end fixedly connected with axis of rotation of motor output shaft, the fixed surface of axis of rotation is connected with and drives adjustment mechanism, the top fixedly connected with flabellum of axis of rotation.
Preferably, drive adjustment mechanism and include the connecting cylinder, the inside one side of connecting cylinder is provided with the piston piece, one side fixedly connected with telescopic link of piston piece, the one end of telescopic link runs through the connecting cylinder and extends to the outside of connecting cylinder, the one end of telescopic link with the inboard sliding connection of sealing ring.
Preferably, the surface mounting of shell body has the latch fitting, the latch fitting includes the latch piece, the centre bore has been seted up on the latch piece, the jack has been seted up to one side of centre bore inner wall.
Preferably, the top of brace table is provided with fixed establishment, fixed establishment includes the fixing base, the top fixedly connected with connecting axle of fixing base, set up threaded hole on the connecting axle, the surface cover of connecting axle is equipped with and rotates a section of thick bamboo, the inside that rotates a section of thick bamboo is provided with the clockwork spring, the outside end and the inside fixed connection who rotates a section of thick bamboo of clockwork spring, the medial extremity of clockwork spring with the fixed surface of connecting axle is connected, the one side fixedly connected with locating piece that rotates a section of thick bamboo, it has the location axle to run through on the locating piece, the locating hole has been seted up to the top of brace table and the one side that is located fixed establishment.
Compared with the related technology, the intelligent asset monitoring terminal based on the narrowband Internet of things technology provided by the invention has the following beneficial effects:
the invention provides an intelligent asset monitoring terminal based on a narrowband Internet of things technology, which adopts an NB-IOT wireless data communication technology, a Beidou GPS satellite combined positioning technology, a built-in high-sensitivity sensor and a large-capacity lithium battery, has the functions of position reporting, inclination angle detection, displacement warning, real-time tracking and the like, can monitor the positions and the states of articles and assets, and can be widely applied to urban assets.
Drawings
FIG. 1 is a schematic block diagram of a first embodiment of an intelligent asset monitoring terminal based on a narrowband internet of things technology provided by the invention;
FIG. 2 is a schematic structural diagram of a second embodiment of an intelligent asset monitoring terminal based on a narrowband internet of things technology, provided by the invention;
FIG. 3 is a schematic view of the portion of FIG. 2;
FIG. 4 is a schematic structural view of the base shown in FIG. 2;
FIG. 5 is an enlarged view of portion A of FIG. 4;
FIG. 6 is a cross-sectional view of the securing mechanism shown in FIG. 5;
fig. 7 is a top view of the latch of fig. 2;
fig. 8 is a schematic structural diagram of a third embodiment of the intelligent asset monitoring terminal based on the narrowband internet of things technology provided by the invention.
Reference numbers in the figures:
1. the outer shell is provided with a plurality of grooves,
2. a base 21, alower cylinder seat 22, anupper cylinder seat 23, a connectingpiece 24, anannular cavity 25 and a supporting platform,
3. a motor is arranged on the base plate and is provided with a motor,
4. a drivingadjusting mechanism 41, a connectingcylinder 42, apiston block 43, anelastic piece 44 and a telescopic rod,
5. the fan blades are provided with a plurality of fan blades,
6. a supporting frame is arranged on the base plate,
7. afixing mechanism 71, a fixedseat 72, a connectingshaft 73, a rotatingcylinder 74, apositioning block 75, apositioning shaft 76 and a clockwork spring,
8. alocking piece 81, alocking block 82, acentral hole 83 and a jack,
9. thesealing element 91, thesealing ring 92, the annularsliding groove 10 and the positioning hole;
11. the protective cover comprises aprotective cover 12, an arc-shaped hole 13, aflow guide cover 14, afixing lug 15 and a positioning pin.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
First embodiment
Referring to fig. 1 in combination, fig. 1 is a schematic block diagram of a first embodiment of an intelligent asset monitoring terminal based on a narrowband internet of things technology according to the present invention. Asset intelligent monitoring terminal based on narrowband thing allies oneself with technique includes:
a central control module;
the NB-lot communication module is used for reporting data, is connected with the output end of the central control module, and the output end of the NB-lot communication module is connected with an NB-lot FPC antenna;
the positioning module is connected to the output end of the central control module, and the output end of the positioning module is connected with a satellite ceramic antenna;
the G-SENSOR is used for detecting the inclination angle of the fixed carrier and is connected to the input end of the central control module;
and the temperature sensor is connected to the input end of the central control module.
The positioning module adopts a BDS and a GPS satellite navigation system to carry out combined positioning.
The input end of the central control module is connected with a power supply module, a power supply conversion module and an LED lamp.
The NB-IoT communication network is adopted for data reporting, and the method has the characteristics of wide coverage, low power consumption and large capacity;
G-SENSOR sensitivity is 0.392m/s ^ 2;
GNSS characteristics: capture sensitivity-148 dBm; tracking sensitivity is-167 dBm; first fix time 28S; positioning accuracy 2.5m CEP; the speed measurement precision is 0.1m/s CEP, and the frequency points are GPS L1C/ABDS B1C;
the standard voltage of the battery is 3V, the cut-off voltage is 1.5V, the capacity is 5600 milliampere, the working time is reported once a day for 3 years, and the working temperature is minus 40-70 ℃;
the NB-IoT antenna receiving frequency range is 869-894 MHz; the emission frequency range is 824-849 MHz; the standing-wave ratio (dB) is less than or equal to 2; the gain is more than 1 dBi; polarization type linear polarization; TRP (dBm)
Not less than 20; TIS (dBm) is less than or equal to-106.5; effi% 40; an input impedance (Ω) 50; maximum input power (W) 5;
the GNSS antenna has frequency points of GPS L1:1575.42MHz +/-1.023 MHz BD 2B 1:1561.098 +/-2.046 MHz; a GNSS dielectric antenna; the gain is more than 2 dB; an input impedance 50; the axial ratio is less than or equal to 3 dB; polarization type right-hand circular polarization; the standing-wave ratio is less than or equal to 2;
the electromagnetic compatibility electrostatic discharge immunity degree contact discharge is 6KV, the air discharge is 8KV, and the dielectric strength is 1 KV;
protection class IP 67;
shell size 119.01 x 64.26 x 33.8 mm.
The working principle of the intelligent asset monitoring terminal based on the narrow-band internet of things technology provided by the invention is as follows:
the method comprises the steps that the equipment is installed on the equipment to be used, through a set positioning module and a BDS and GPS combined positioning mode, when the position of a terminal moves from a static state for more than 300 meters (the distance parameter can be set), a displacement warning message is generated, data are uploaded to a remote terminal through an NB-lot communication module, the equipment is reminded of being possibly stolen, and after the terminal receives a real-time tracking instruction, 30S is defaulted to report position information once, the position information is continuously reported for 30 minutes, and the reporting interval and the time length parameter can be set;
when the device is normally installed, position information is reported for 1 time in 24 hours in a default mode, the position information comprises information such as coordinates, time, speed, direction angles and the like, and time parameters can be adjusted;
the G-SENSOR is set to detect the inclination angle of the fixed carrier, and the inclination angle parameter is reported for 1 time in 24 hours by default, and the time parameter is adjustable;
the temperature sensor can detect the temperature of the surrounding environment of the terminal, the temperature parameter is reported for 1 time in 24 hours by default, and the time parameter is adjustable;
when the battery power of the built-in battery of the terminal is lower than 20% and 10%, a low power alarm message is generated
Compared with the related technology, the intelligent asset monitoring terminal based on the narrowband Internet of things technology provided by the invention has the following beneficial effects:
the NB-IoT Internet of things monitoring terminal adopts an NB-IOT wireless data communication technology and a Beidou GPS satellite combined positioning technology, is internally provided with a high-sensitivity sensor and a large-capacity lithium battery, has the functions of position reporting, inclination angle detection, displacement warning, real-time tracking and the like, can monitor the positions and the states of articles and assets, and can be widely applied to urban assets.
Second embodiment
Referring to fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, based on the intelligent asset monitoring terminal based on the narrowband internet of things technology provided in the first embodiment of the present application, a second embodiment of the present application provides another intelligent asset monitoring terminal based on the narrowband internet of things technology. The second embodiment is only the preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
Specifically, the difference of the intelligent asset monitoring terminal based on the narrowband internet of things technology provided by the second embodiment of the application lies in that the intelligent asset monitoring terminal based on the narrowband internet of things technology further comprises an outer shell 1 used for bearing a central control module, an NB-lot communication module, a positioning module, a G-SENSOR, a temperature SENSOR, a power supply module, a power supply conversion module and an LED lamp, wherein abase 2 is installed at the bottom of the outer shell 1, and an air cooling adjusting mechanism is arranged inside thebase 2.
The bottom of the shell body 1 is provided with heat dissipation holes, and the bottom of the shell body 1 is positioned outside the heat dissipation holes and is bonded with a dust screen.
Thebase 2 comprises a lower side barrel seat 21 and an upperside barrel seat 22, the lower side barrel seat 21 is fixedly connected with the upperside barrel seat 22 through a connectingpiece 23, anannular cavity 24 is reserved between the upperside barrel seat 22 and the lower side barrel seat 21, asealing piece 9 is arranged inside theannular cavity 24, and a supporting table 25 is fixedly connected to the top of the upperside barrel seat 22.
The connectingpiece 23 is a U-shaped piece, and is not less than three, and the shell body 1 is installed on a supportingplatform 25.
The sealingelement 9 comprises a sealingring 91, and an annular slidinggroove 92 is formed in the inner side of the sealingring 91.
The thickness of the sealingring 91 is the same as the width of the groove cavity of theannular cavity 24.
Air-cooled adjustment mechanism includesmotor 3, 3 fixed mounting of motor in the top of downside tube seat 21 inner wall, the one end fixedly connected with axis of rotation of 3 output shafts of motor, the fixed surface of axis of rotation is connected with and drives adjustment mechanism 4, the top fixedly connected withflabellum 5 of axis of rotation.
Themotor 3 is powered by the storage battery, and themotor 3 drives thefan blades 5 to rotate to generate upward airflow to enter the outer shell 1 so as to dissipate heat of internal electrical components.
Drive adjustment mechanism 4 includes connectingcylinder 41, the inside one side of connectingcylinder 41 is provided withpiston block 42, one side fixedly connected withtelescopic link 44 ofpiston block 42, the outside that connectingcylinder 41 just extended to connectingcylinder 41 is run through to the one end oftelescopic link 44, the one end oftelescopic link 44 with the inboard sliding connection of sealingring 91.
Theelastic member 43 is sleeved on one side of thepiston block 42 inside the connectingcylinder 41, theelastic member 43 is located on the surface of thetelescopic rod 44, the end of thetelescopic rod 44 is provided with a sliding block which is slidably connected with the annular slidinggroove 92, the cross section of the annular slidinggroove 92 is in a convex shape, and the sliding block is correspondingly arranged.
The surface mounting of shell body 1 has latch fitting 8, latch fitting 8 includeslatch piece 81, centre bore 82 has been seted up onlatch piece 81,jack 83 has been seted up to one side of centre bore 82 inner wall.
The locking means 8 are preferably provided in three.
The top of brace table 25 is provided with fixedestablishment 7, fixedestablishment 7 includes fixingbase 71, the top fixedly connected with connectingaxle 72 of fixingbase 71, set up threaded hole on the connectingaxle 72, the surface cover of connectingaxle 72 is equipped with and rotates a section ofthick bamboo 73, the inside of rotating a section ofthick bamboo 73 is provided withclockwork spring 76, the outside end ofclockwork spring 76 and the inside fixed connection who rotates a section ofthick bamboo 73, the medial extremity ofclockwork spring 76 with the fixed surface connection of connectingaxle 72, one side fixedly connected with locatingpiece 74 of rotating a section ofthick bamboo 73, it haslocation axle 75 to run through on the locatingpiece 74, the locatinghole 10 has been seted up to the top of brace table 25 and the one side that is located fixedestablishment 7.
The diameter of therotating cylinder 73 is the same as that of thecentral hole 82, thepositioning shaft 75 can slide relatively along thepositioning block 74, the top end of the positioning shaft is provided with an end cap, and thepositioning hole 10, thepositioning block 74 and the center of therotating cylinder 73 are arranged at ninety degrees;
the inside of the lower side cylinder seat 21 is fixedly connected with asupport frame 6 through a connecting arm, and the top of thesupport frame 6 is provided with a ball which can be supported by the connectingcylinder 41 in a shape-entering manner, so that the connecting cylinder is more stable in rotation;
when the monitoring terminal works, themotor 3 drives the rotating shaft to rotate at the moment, so that thefan blades 5 are driven to rotate, upward airflow is generated to enter the inner part of the outer shell 1, and heat dissipation is carried out on internal electric elements;
meanwhile, the rotating shaft drives the connectingcylinder 41 to rotate highly, the connectingcylinder 41 rotates to generate centrifugal force, at the moment, thetelescopic rod 44 slides outwards and drives thepiston block 42 to compress theelastic part 43, the end part of thetelescopic rod 44 slides along the annular slidinggroove 92 on the inner side of the sealingring 91 and pushes the sealingring 91 to stagger with theannular cavity 24 to form a flow guide gap, external air flow can enter the inside of thebase 2 through the flow guide gap, and the circulation of the air is formed to dissipate heat inside the outer shell 1;
when the monitoring terminal stops working, themotor 3 is turned off at the moment, the rotating shaft stops rotating, namely the connectingcylinder 41 stops rotating, at the moment, centrifugal force does not exist, thetelescopic rod 44 is retracted to the original position under the action of theelastic piece 43, thetelescopic rod 44 drives the sealingring 91 to return to the interior of theannular cavity 24, so that thewhole base 2 is sealed, external dust is prevented from entering the interior of thebase 2, foreign matters such as external dust can be greatly reduced from entering the interior of the outer shell 1, and the driving of thefan blades 5 and the position adjustment of the sealingring 91 can be completed through one motor, so that the monitoring terminal is more energy-saving and environment-friendly;
the installation operation of the outer shell 1 and thebase 2 is simple;
when the spring winding device is installed, firstly, thepositioning block 74 is rotated to enable thepositioning shaft 75 to correspond to thepositioning hole 10, then, thepositioning shaft 75 is inserted into thepositioning hole 10 to limit thepositioning block 74, wherein therotating cylinder 73 is driven to rotate when thepositioning block 74 rotates, and therotating cylinder 73 pulls the outer end of thespring 76 to enable the spring to contract;
at this moment, the center hole and thejack 83 in the lockingblock 81 at the bottom of the outer shell 1 correspond to therotating cylinder 73 and thepositioning block 74 to be inserted into and pass through, at this moment, thepositioning shaft 75 is pulled out of thepositioning hole 10, the rotatingcylinder 73 is driven to rotate ninety degrees through the action of thespring 76, thepositioning block 74 and thepositioning hole 10 are staggered and limited, the operation is simple and convenient, thepositioning block 74 is moved to thepositioning shaft 75 to correspond to thepositioning hole 10 in the same way during disassembly, and the assembly and disassembly are simple and convenient.
Third embodiment
Referring to fig. 8, based on the intelligent asset monitoring terminal based on the narrowband internet of things technology provided in the second embodiment of the present application, a third embodiment of the present application provides another intelligent asset monitoring terminal based on the narrowband internet of things technology.
Specifically, the third embodiment of the present application provides an intelligent asset monitoring terminal based on narrowband internet of things technology, which is different in that the intelligent asset monitoring terminal based on narrowband internet of things technology, when the intelligent asset monitoring terminal based on the narrowband internet of things technology is installed outdoors, the outer side of the outer shell 1 is provided with theprotective cover 11, a plurality of arc-shapedholes 12 are arranged on the upper side of theprotective cover 11, aflow guide cover 13 is arranged on the upper side of theprotective cover 11 and positioned on the outer side of the arc-shapedholes 12, the bottom of theprotective cover 11 is fixedly connected with a fixinglug 14, apositioning pin 15 is arranged on the fixinglug 14, thepositioning pin 15 penetrates through the fixinglug 14, a driving handle is arranged at the top end of thepositioning pin 15, a baffle ring is fixed on the surface of thepositioning pin 15 and below the fixinglug 14, and an external thread is arranged on the surface of thepositioning pin 15 and below the baffle ring;
wherein the fixing lugs 14 are preferably provided in three;
theprotective cover 11 is arranged to protect the monitoring terminal, environmental factors such as refuge rainwater and solar radiation act on the monitoring terminal, the arc-shapedholes 12 are formed to facilitate flowing and heat dissipation of airflow, theflow guide cover 13 is arranged to prevent rainwater and the like from flowing into theprotective cover 11 through the arc-shapedholes 12, and a dustproof net is bonded to the outer side of the arc-shapedholes 12 on theprotective cover 11;
when theprotective cover 11 is installed, thepositioning pin 15 is correspondingly screwed into the threaded hole in the connectingshaft 72, and the installation is convenient.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.