CN205688369U - Automatic limiting height lowering or hoisting gear based on bluetooth - Google Patents
Automatic limiting height lowering or hoisting gear based on bluetooth Download PDFInfo
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- CN205688369U CN205688369U CN201620390285.9U CN201620390285U CN205688369U CN 205688369 U CN205688369 U CN 205688369U CN 201620390285 U CN201620390285 U CN 201620390285U CN 205688369 U CN205688369 U CN 205688369U
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Abstract
This utility model relates to automatic limiting height lowering or hoisting gear based on bluetooth, including height-limiting frame, height-limiting frame elevating mechanism, bluetooth wireless transceiver, master controller and ground induction coil；Height-limiting frame is provided with liftable height-limiting bar, and height-limiting frame elevating mechanism is in transmission connection with liftable height-limiting bar；Master controller is provided with main control chip, bluetooth wireless transceiver include the main bluetooth wireless transceiver being arranged in described master controller and be arranged in special car from bluetooth wireless transceiver；Whether ground induction coil is arranged at the ground of height-limiting frame front 4.5 5.5m, have vehicle close for sensing；Master controller is electrically connected with height-limiting frame elevating mechanism, and main bluetooth wireless transceiver is connected with from bluetooth wireless transceiver radio communication, and main bluetooth wireless transceiver is communicated to connect with main control chip by High Speed Serial.This utility model can improve special car emergent passing efficiency according to the automatic lifting needing control height-limiting bar of special car, reduces road operation cost, meets road public safety needs.
Description
Technical field
This utility model relates to automatic control technology field, particularly to a kind of automatic limiting height lowering or hoisting gear based on bluetooth
Special car.
Background technology
The height-limiting frame used on current domestic road, main uses two kinds of limits such as fixed and intellectual remote controlling height
Overhead.For most roads, mostly use fixed height-limiting frame；This kind of height-limiting frame uses and follows for a long time, is day by day modernizing
Road on, its very flexible, under special circumstances can not the problem of special handling, become increasingly conspicuous.Once continue to install and use
This type of height-limiting frame, can only be by the vehicle within altitude range；This have impact on the emergent special car of safety to a certain extent
Current and the emergency reaction efficiency of (such as fire fighting truck, ambulance, breakdown lorry or public transit vehicle etc.), special car is appointed in execution
This type of height-limiting frame can only be got around during business, arrive at scene, slacken special car emergency reaction function in Public Crisis, special
Moment often results in serious economic loss and casualties.For the height-limiting frame of intellectual remote controlling height, the most only application
At home on the road of minority；In the case of special car need to pass through, still need and contact relevant departments in advance, then relevant departments
By remotely control, height limiter is lifted again, although this compares relatively fixes height-limiting frame intellectuality a lot, but add
The cost of urban road operation and traffic efficiency；Therefore, the height-limiting frame of this kind of intellectual remote controlling height, it is impossible to meet city
Road when public security needs, the requirement that special car passes through rapidly.
Utility model content
In view of the drawbacks described above of prior art, this utility model provides a kind of automatic limiting height based on bluetooth lifting dress
Put, with improve existing height-limiting frame exist very flexible, costly, special car be difficult to defects such as passing through, improve emergency car
Current efficiency, possesses agility, dependable with function.
For achieving the above object, this utility model provide a kind of automatic limiting height lowering or hoisting gear based on bluetooth, described automatically
Limit for height lowering or hoisting gear includes: height-limiting frame, height-limiting frame elevating mechanism, bluetooth wireless transceiver, master controller, ground induction coil；Described
Height-limiting frame is provided with liftable height-limiting bar, and described height-limiting frame elevating mechanism is in transmission connection with described liftable height-limiting bar；Described master control
Device processed is provided with main control chip, and described bluetooth wireless transceiver includes the main bluetooth wireless transceiver being arranged in described master controller
Be arranged in special car from bluetooth wireless transceiver；Described ground induction coil is arranged at described height-limiting frame front 4.5-5.5m
Ground, for sensing whether have vehicle close；Described master controller is electrically connected with described height-limiting frame elevating mechanism, described master
Bluetooth wireless transceiver is connected from bluetooth wireless transceiver radio communication with described, and described main bluetooth wireless transceiver is by a high speed
Serial ports communicates to connect with described main control chip.
Further, described bluetooth wireless transceiver is CC2540 bluetooth wireless transceiver.CC2540 bluetooth wireless receiving and dispatching
Device is used for reception and the transmission of data, and transceiving data open air visual range reaches as high as 200 meters；CC2540 bluetooth wireless transceiver
Digital interface all draw, comprise unique 48 IEEE addresses in CC2540 bluetooth wireless transceiver, this address is bluetooth
The public device address of equipment；User can use aes algorithm to encrypt and decrypt equipment.
Further, described height-limiting frame elevating mechanism includes lifting motor and spool shaft, described lifting motor and described volume
Cylinder through-drive connects, and is provided with arrangement of clutch between described lifting motor and described spool shaft；Described master controller and described lifting
Motor is electrically connected with, and described spool shaft is in transmission connection with described liftable height-limiting bar.
Further, described ground induction coil uses Hall switch.
Further, the described information that store described special car from bluetooth wireless transceiver, described special car
Information include the elevation information of vehicle.
Further, described special car is fire fighting truck, ambulance, breakdown lorry or special vehicle.
Further, described master controller is additionally provided with radio communication circuit, described radio communication circuit and traffic monitoring pipe
Reason system is connected by radio communication.Traffic monitoring management system can be by receiving main control by GPRS wireless communication networks
Device transmits the data come and data is stored in data base.
Further, described automatic limiting height lowering or hoisting gear based on bluetooth is additionally provided with video camera, and described video camera is for right
The special car of process is taken pictures, and described video camera is electrically connected with described master controller.When master and slave bluetooth wireless transceiver
After linking successfully, the special car of process is taken pictures by video camera, and picture file is sent to traffic monitoring by master controller
Management system shows and achieves.
The beneficial effects of the utility model:
This utility model is owing to have employed said structure design, and having the advantages that can be according to special car
Need to control easily and flexibly the automatic lifting of height-limiting bar especially, thus improve the efficiency of special car emergent passing, reduce city
City's road operation cost, meet the needs of urban road public safety.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is made furtherly
Bright, to be fully understood from the purpose of this utility model, feature and effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the radio circuit figure of bluetooth wireless transceiver.
Fig. 3 is circuit diagram of the present utility model.
In figure, 1 height-limiting frame；11 liftable height-limiting bars；12 spool shaft；2 master controllers；3 ground induction coils；4 road portal frames；
41 traffic mark boards；5 video cameras
Detailed description of the invention
Illustrate preferred embodiment of the present utility model is illustrated below in conjunction with accompanying drawing, it will be appreciated that described herein
Preferred embodiment be merely to illustrate and explain this utility model, be not used to limit this utility model.
Embodiment one:
Illustrate that present embodiment, present embodiment relate to a kind of automatic limiting height lowering or hoisting gear based on bluetooth in conjunction with Fig. 1, this
Device is installed on below road portal frame 4, comprising: height-limiting frame 1, height-limiting frame elevating mechanism, bluetooth wireless transceiver, main control
Device 2 and ground induction coil 3.Bluetooth wireless transceiver in the present embodiment is CC2540 bluetooth wireless transceiver, including being arranged at
The main bluetooth wireless transceiver in bluetooth wireless transceiver and master controller in special car, CC2540 bluetooth wireless receiving and dispatching
Device can complete reception and the transmission of data, and transceiving data open air visual range reaches as high as 200 meters, bluetooth wireless transceiver
Digital interface is all drawn, and extends module stores space, comprises unique 48 IEEE addresses in module, and this address is
The public device address of bluetooth equipment.User can use aes algorithm to encrypt and decrypt equipment.Ground induction coil 3 is suddenly
Whether you switch, and are arranged at the bottom surface in 5 meters of height-limiting frame front, have vehicle close for sensing.
Height-limiting frame 1 is provided with liftable height-limiting bar 11；Height-limiting frame elevating mechanism includes lifting motor (not shown) and reel
Axle 12, lifting motor and spool shaft 12 are in transmission connection, and are additionally provided with arrangement of clutch (not shown between lifting motor and spool shaft 12
Go out)；Master controller 2 is electrically connected with lifting motor, and spool shaft 12 is in transmission connection with liftable height-limiting bar 11.
Being provided with main control chip (not shown) in master controller 2, master controller 2 is installed on as on the left of Sign Board 41 in Fig. 1
Crossbeam on, inside is provided with main bluetooth wireless transceiver, main bluetooth wireless transceiver be arranged in special car from bluetooth
Wireless transceiver communicates, and uses the main control chip communication of High Speed Serial and master controller.
The work process of the present embodiment is as follows:
(1) when special car enters the induction range of ground induction coil, main bluetooth wireless transceiver is waken up, and starts work
Make, near inquiry, whether have Bluetooth signal.
(2) broadcast data packet and response data packet are sent from bluetooth wireless transceiver, with main bluetooth wireless receiving and dispatching in car
Wireless connections set up by device.
(3) master controller reads and stores and send the vehicle letter to main bluetooth wireless transceiver from bluetooth wireless transceiver
Breath.
(4) master controller obtains height of car, sends instruction and controls lifting motor work, drives on liftable height-limiting bar
It is raised to the height that enough special cars pass through.
(5) after vehicle passes through height-limiting frame and leaves ground induction coil induction range, master controller sends instruction again, makes liter
Falling unit drops to original height, if unrelated vehicle is forced through height-limiting frame, reports to the police and record.
Embodiment 2
The present embodiment relates to a kind of height-limiting frame facility, including height-limiting frame, height-limiting frame elevating mechanism, ground induction coil, automatically rises
Falling unit, master controller and video camera.It is provided with main bluetooth wireless transceiver and main control chip in master controller, sets in special car
Have from bluetooth wireless transceiver, main bluetooth wireless transceiver and carry out radio communication between bluetooth wireless transceiver, meanwhile, main
Bluetooth wireless transceiver uses High Speed Serial and main control chip communication.Special car include fire fighting truck, ambulance, breakdown lorry,
Public transit vehicle, special vehicle etc., store the information of this car from bluetooth wireless transceiver, and topmost information is the height of vehicle
Degree.Height-limiting frame 1 is provided with liftable height-limiting bar 11；Height-limiting frame elevating mechanism includes lifting motor (not shown) and spool shaft 12,
Lifting motor and spool shaft 12 are in transmission connection, and are additionally provided with arrangement of clutch (not shown) between lifting motor and spool shaft 12；Main
Controller 2 is electrically connected with lifting motor, and spool shaft 12 is in transmission connection with liftable height-limiting bar 11, video camera 5 and master controller 2
It is electrically connected with.Whether ground induction coil 3 is Hall switch, is arranged at the bottom surface in 5 meters of height-limiting frame front, have vehicle to lean on for sensing
Closely.
In the present embodiment, master controller 2 is additionally provided with radio communication circuit, and radio communication circuit passes through GPRS radio communication network
Network is connected with traffic monitoring management Radio Communication, thus by the image of record and video camera shooting, vehicle is passed to traffic
Monitoring management system.
The work process of the present embodiment is as follows:
(1) entering ground induction coil induction range when special car, main bluetooth wireless transceiver is waken up, and starts working, and looks into
Whether Bluetooth signal is had near inquiry.
(2) broadcast data packet and response data packet are sent from bluetooth wireless transceiver, with main bluetooth wireless receiving and dispatching in car
Wireless connections set up by device.
(3) master controller reads the vehicle letter storing and being sent to main bluetooth wireless transceiver from bluetooth wireless transceiver
Breath, video capture vehicle image.
(4) master controller obtains height of car, sends instruction and controls lifting motor work, drives on liftable height-limiting bar
It is raised to the height that enough special cars pass through.
(5) after vehicle passes through height-limiting frame and leaves ground induction coil induction range, master controller sends instruction again, makes liter
Falling unit drops to original height, if unrelated vehicle is forced through height-limiting frame, reports to the police and record.
(6) image that master controller is clapped this driving recording and video camera is uploaded to traffic monitoring management system, real
Time show and be retained as backup.
Work that bluetooth is wireless uses the 2.4GHz frequency range of Global Access, for avoiding and the other system in this frequency range or equipment
Produce mutually interference, then use frequency hopping and quickly confirm that scheme ensures the stability of link.
Bluetooth wireless transceiver of the present utility model is by frequency synthesizer, crystal oscillator, power amplifier and modulatedemodulate
Adjusting device four part composition, working band scope is 2402MHz～2480MHz, and receiving sensitivity is-97dBm, data transfer rate
For 1Mbps, supply voltage scope is 2～3.6V, and source current consumption is 27mA, in the receiving mode power supply in the transmission mode
Electric current is 24mA.Bluetooth wireless transceiver (this module have employed a new generation's bluetooth 4.0 low-power consumption CC2540F256 chip) radio frequency
Circuit, as in figure 2 it is shown, these inductance capacitances of C262, C252, L261 and L252 realize imbalance converter function, can optimize sky
Linear energy.
XTAL1 Yu C221, C231 load capacitance constitute outside 32MHz crystal oscillator, XTAL2 Yu C321, C331 load
Electric capacity constitutes internal 32.768kHz crystal oscillator.Have only to when bluetooth equipment is in sleep pattern and wakes up up use inside
Crystal oscillator, consumes the least power.40 pins need to connect a C401 decoupling capacitor so that chip can stable operation.
In circuit is applied, the optimum performance of circuit to be realized, size and the power filter of decoupling capacitor are critically important, bluetooth wireless receiving and dispatching
In device radio circuit figure, the size of capacitor and inductor is as shown in table 1.
Table 1. bluetooth wireless transceiver radio circuit components and parts table
| Components and parts | Value | Components and parts | Value |
| C221 | 12pF | C321 | 15pF |
| C231 | 12pF | C331 | 15pF |
| C251 | 18pF | C401 | 1μF |
| C252 | 1pF | L251 | 2nH |
| C253 | 1pF | L252 | 1nH |
| C261 | 18pF | L253 | 3nH |
| C262 | 1pF | L261 | 2nH |
| C321 | 15pF | R301 | 56kΩ |
Circuit of the present utility model is by master controller, bluetooth wireless transceiver, ground induction coil, video camera, height-limiting frame lifting
Mechanism forms, and circuit diagram is as shown in Figure 3.Master controller uses ARM9 development board, and the microprocessor of this development board is Samsung
S3C2440 chip, and stable reset chip and CPU core power supply chip can ensure that stability when system is run.Bluetooth
Wireless transceiver is a new generation's bluetooth 4.0 low-power consumption module.Ground induction coil uses HK-1 type Hall switch to simulate.Due to master control
Chip S3C2440 pin is too many, will be drawn by used pin when circuit design in the way of socket.
When vehicle enters ground induction coil induction range, a large amount of metals of underbody will produce the faradism whirlpool in closed type loop
Stream, this eddy current can produce the new magnetic field contrary with original magnetic field, thus cause coil total inductance amount to diminish, and the change of inductance can make
Tuned frequency value deviates original numerical value, and this offset signal may utilize PHASE-LOCKED LOOP PLL TECHNIQUE and becomes output of pulse signal, defeated when having a car
Go out high level.Representing with Hall switch HST in circuit diagram, each Hall switch is by three lead-foot-lines and a magnetic induction face
Composition, No. 1 pin is Hall switch working power electrode input end, provides running voltage for Hall switch internal circuit；No. 2 are drawn
Foot is Hall switch outfan, and after once magnetic field is detected in the magnetic induction face of Hall switch, Hall switch will convert into the signal of telecommunication
Output；No. 3 pins are earth terminals, on the one hand can as the negative pole of power supply, on the other hand can as the cold end of output signal,
Current loop and the output signal loop of power supply i.e. it is made up of bottom line.Outfan is connected with the GPF0 pin of master controller, when having
When vehicle passes through, this pin output high level, the main bluetooth wireless transceiver in master controller is started working.
In circuit diagram, U7 is main bluetooth wireless transceiver pin figure.When in this main bluetooth wireless transceiver and car from indigo plant
Tooth wireless transceiver is successfully connected, and the information read from bluetooth wireless transceiver in car will be by SPI high-speed synchronous
Serial port is sent to master controller, and master controller uploads to traffic monitoring management system by bus again, and certainly, master controller is also
Radio communication circuit can be passed through, send data to traffic monitoring management system by GPRS network.P14 is chip select line, P15
For clock output line, P16 is for sending serial data mouth, and P17, for receiving serial data mouth, is connected respectively to the nSS_ of main control chip
CS, SPICLK, SPIMOSI, SPIMISO pin is connected, and can send simultaneously/receive 8 bit data, is reading the same of information of vehicles
Time, control liftable height-limiting bar and run.
After video camera has shot vehicle photo, liftable height-limiting bar rises to special procure vehicle automatically can be with safe passing
Highly.Main control chip S3C2440 is contained within 5 clock timers, wherein has 4 intervalometers to have PWM function, i.e. by controlling
Output pin, makes output level have periodic high and low change.Two PWM output pins of Master control chip in circuit
GPB1 and GPB2 is connected on the motor of apparatus for automatically lifting, and motor drives and uses 4 NPN audions, is used for just controlling motor
Reversion, thus control the raising and lowering of height-limiting frame.
It addition, in the running of system, if subjected to external disturbance or system mistake, program it sometimes appear that
" race flies ", causes whole system to be paralysed.The WatchDog Timer of S3C2440 is in running, if clock count is kept to 0,
I.e. when time-out is overflowed, it will have the reset signal of a clock cycle to produce, start system reset function, make system again open
Begin to run, thus reach the effect of supervisory control system running.
Principal and subordinate's bluetooth wireless transceiver connection procedure:
When vehicle enters bluetooth communications range, start send broadcast data packet and be in scanning prison from bluetooth wireless transceiver
Listen state.This broadcast data packet contains from information such as the device address of bluetooth wireless transceiver, implementor name, size of data.Main
Bluetooth wireless transceiver is in scanning listening state, can listen to the broadcast data packet sent from bluetooth wireless transceiver, this
Time main bluetooth wireless transceiver known the existence from equipment.Main bluetooth wireless transceiver sends to from from bluetooth wireless transceiver
Scan request, sends response message after bluetooth wireless transceiver listens to scan request, tells that main bluetooth wireless transceiver can
To be attached.Main bluetooth wireless transceiver listens to send connection request after the information of bluetooth wireless transceiver response, with
Set up from bluetooth wireless transceiver and connect, with device access code to respond master after bluetooth wireless transceiver listens to connection request
Bluetooth wireless transceiver.Principal and subordinate's bluetooth wireless transceiver is set up after connecting, and mates, when coupling completes, sets up a key,
It is encrypted and authentication url.Main bluetooth wireless transceiver for from bluetooth wireless transceiver provide a password, main bluetooth without
After line transceiver sends correct password, two bluetooth wireless transceiver exchanging safety keys, complete matching process.
Some Connecting quantity are contained in main bluetooth wireless transceiver sends the broadcast data packet of connection request:
(1) Connection Interval: connect spacing value.Principal and subordinate's bluetooth wireless transceiver uses when connecting communication
Frequency hopping, sends/receives data on a specific passage, can jump to a new passage (logical after certain time
The link layer process of the selection BLE protocol stack in road).Often send/connect in a new passage between principal and subordinate's bluetooth wireless transceiver
Receive data and be referred to as a connection event.Even if principal and subordinate's bluetooth wireless transceiver communication does not sends/receives data, the two wireless receipts of bluetooth
Send out device and can maintain connection status by link exchange layer data.Connect the spacing value i.e. interval time of twice connection event, single
Position is 1.25ms, and connecting scope interval time is 6～3200, namely 7.5ms～4.0s.
(2) Slave Latency: from bluetooth wireless transceiver length of delay.If it is the most any from bluetooth wireless transceiver
When data are to be sent, it may be selected by skipping some connection events, is maintained at sleep state.This parameter has certain flexible
Property, equipment the most just can reduce power consumption.The maximum of connection event i.e. can be skipped from bluetooth wireless transceiver length of delay
Number of times, the scope of this value is between 0～499.
(3) Supervision Timeout: monitor timeout value.This value is to be successfully connected the maximum of event for twice.If
The most successful connection event is not had, then may determine that and between equipment, lose connection, all the company of returning within this time
Connect state.This parameter, in units of 10ms, monitors that the scope of timeout value is 10 (100ms)～3200 (32s).
When arranging connection spacing parameter, being worth the biggest, bluetooth wireless transceiver power consumption operationally is the lowest, but bluetooth
When wireless transceiver has data to send, it is necessary to wait connection event next time.It is worth the least, between two bluetooth wireless transceiver
Connection event is the most frequent, and the chance transmitting or receiving data is the most, but the power consumption that equipment is operationally is the biggest.
When arranging from bluetooth wireless transceiver delay parameter, it is impossible to make effectively to connect interval time more than 32s.Effectively
Connection can represent with following formula interval time:
ECI=(CI) * (1+ (SL)) (1)
In formula 1, ECI (Effective Connection Interval) expression effectively connects interval time, CI
(Connection Interval) expression connects interval time, and SL (Slave Latency) represents from bluetooth wireless transceiver jumping
Cross the maximum times of connection event.It addition, monitor that timeout value have to be larger than effectively connect interval time.
A kind of form when principal and subordinate's bluetooth wireless transceiver sends broadcast packet and packet, as shown in table 2；Each bag
All comprise 4 parts: preamble, entry address, PDU (protocol Data Unit) and CRC (Cyclic Redundancy Code) effect code.
Table 2. sends form
All link layer transfer are surrounded by eight preambles, and the preamble of broadcast channel transmission bag is
10101010, the preamble of data channel transmission bag depends on the least significant bit (LSB) of entrance function, Ke Yishi
10101010, it is also possible to be 01010101.The entry address of all broadcast channels transmission bag is 0x8E89BED6, and data channel
The entry address of transmission bag is the random value of 32.The PDU of data channel transmission bag is than broadcast channel transmission bag many
The MIC (information integrity inspection) of individual 32.Have the CRC of 24 at the end of link layer transfer bag, it is by linear feedback
Shift register produces.
When vehicle enters ground induction coil scope, hardware system completes to initialize, being sent out from bluetooth wireless transceiver in car
Existing, scanning sends response data packet, with main bluetooth wireless receiving and dispatching after listening to the connection request that main bluetooth wireless transceiver sends
Device exchanging safety key.Once successful connection, sends information of vehicles to main bluetooth wireless transceiver, after data are sent completely, disconnected
Open connection.
Preferred embodiment of the present utility model described in detail above.Should be appreciated that the ordinary skill people of this area
Member just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technology neck
In territory, technical staff passes through logical analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model
Test available technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (8)
1. an automatic limiting height lowering or hoisting gear based on bluetooth, described automatic limiting height lowering or hoisting gear includes: height-limiting frame, height-limiting frame liter
Descending mechanism, bluetooth wireless transceiver, master controller and ground induction coil；Described height-limiting frame is provided with liftable height-limiting bar, described limit for height
Frame elevating mechanism is in transmission connection with described liftable height-limiting bar；Described master controller is provided with main control chip, receipts that described bluetooth is wireless
Send out device include the main bluetooth wireless transceiver being arranged in described master controller and be arranged in special car wireless from bluetooth
Transceiver；Whether described ground induction coil is arranged at the ground of described height-limiting frame front 4.5-5.5m, have vehicle close for sensing；
Described master controller is electrically connected with described height-limiting frame elevating mechanism, and described main bluetooth wireless transceiver is wireless from bluetooth with described
Transceiver wireless communications connects, and described main bluetooth wireless transceiver is communicated to connect with described main control chip by High Speed Serial.
Automatic limiting height lowering or hoisting gear based on bluetooth the most according to claim 1, it is characterised in that receipts that described bluetooth is wireless
Sending out device is CC2540 bluetooth wireless transceiver.
Automatic limiting height lowering or hoisting gear based on bluetooth the most according to claim 1, it is characterised in that described height-limiting frame lifts
Mechanism includes that lifting motor and spool shaft, described lifting motor and described spool shaft are in transmission connection, described lifting motor and described
Arrangement of clutch it is provided with between spool shaft；Described master controller and described lifting motor are electrically connected with, described spool shaft with described can
Lifting height-limiting bar is in transmission connection.
Automatic limiting height lowering or hoisting gear based on bluetooth the most according to claim 1, it is characterised in that described ground induction coil is adopted
Use Hall switch.
5. according to the arbitrary described automatic limiting height lowering or hoisting gear based on bluetooth of claim 1-4, it is characterised in that described from indigo plant
Store the information of described special car in tooth wireless transceiver, the information of described special car includes the elevation information of vehicle.
Automatic limiting height lowering or hoisting gear based on bluetooth the most according to claim 5, it is characterised in that described special car is
Fire fighting truck, ambulance, breakdown lorry or special vehicle.
The automatic limiting height lowering or hoisting gear of bluetooth the most according to claim 1, it is characterised in that described master controller is additionally provided with
Radio communication circuit, described radio communication circuit is connected with traffic monitoring management Radio Communication.
Automatic limiting height lowering or hoisting gear based on bluetooth the most according to claim 5, it is characterised in that described based on bluetooth
Automatic limiting height lowering or hoisting gear is additionally provided with video camera, and described video camera is used for taking pictures the special car of process, described shooting
Machine is electrically connected with described master controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620390285.9U CN205688369U (en) | 2016-04-28 | 2016-04-28 | Automatic limiting height lowering or hoisting gear based on bluetooth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620390285.9U CN205688369U (en) | 2016-04-28 | 2016-04-28 | Automatic limiting height lowering or hoisting gear based on bluetooth |
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| CN205688369U true CN205688369U (en) | 2016-11-16 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108471453A (en) * | 2018-05-29 | 2018-08-31 | 淮阴工学院 | A kind of urban road special time period limit device |
| CN108755494A (en) * | 2018-04-28 | 2018-11-06 | 徐州工业职业技术学院 | A kind of photovoltaic intelligent height-limiting frame |
| CN110459061A (en) * | 2019-08-27 | 2019-11-15 | 武汉工程大学 | A kind of road limit for height method for early warning, device and storage medium based on height-limiting frame |
-
2016
- 2016-04-28 CN CN201620390285.9U patent/CN205688369U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108755494A (en) * | 2018-04-28 | 2018-11-06 | 徐州工业职业技术学院 | A kind of photovoltaic intelligent height-limiting frame |
| CN108471453A (en) * | 2018-05-29 | 2018-08-31 | 淮阴工学院 | A kind of urban road special time period limit device |
| CN108471453B (en) * | 2018-05-29 | 2023-10-27 | 淮阴工学院 | Urban road specific time period traffic limiting device |
| CN110459061A (en) * | 2019-08-27 | 2019-11-15 | 武汉工程大学 | A kind of road limit for height method for early warning, device and storage medium based on height-limiting frame |
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