CN108647000A - A kind of new function Bluetooth wireless communication modification floor indicator - Google Patents
A kind of new function Bluetooth wireless communication modification floor indicator Download PDFInfo
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- CN108647000A CN108647000A CN201810429739.2A CN201810429739A CN108647000A CN 108647000 A CN108647000 A CN 108647000A CN 201810429739 A CN201810429739 A CN 201810429739A CN 108647000 A CN108647000 A CN 108647000A
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- 238000004891 communication Methods 0.000 title claims abstract description 56
- 230000004048 modification Effects 0.000 title claims abstract description 10
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- 238000012545 processing Methods 0.000 claims abstract description 7
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- 241001062009 Indigofera Species 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/70—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes
- H04B5/72—Near-field transmission systems, e.g. inductive or capacitive transmission systems specially adapted for specific purposes for local intradevice communication
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Abstract
The present invention provides a kind of new function Bluetooth wireless communication modification floor indicator, including client, memory module, bluetooth processing module, communication module circuitry, audio-frequency module, central processing module and display module.The present invention is adopted using Bluetooth technology and display direct communication, the floor information that will be set directly is changing display thinks it is floor information by Bluetooth wireless communication.It is easy to operate, by installing the client of APP, carried out data transmission by APP, scene update, without disassembling update；Mitigate manufacturer and maintenance staff's workload.
Description
Technical field
The present invention relates to floor indicator, more particularly to a kind of new function Bluetooth wireless communication changes floor indicator.
Background technology
Elevator modification floor indicator method is all to be sent to building site after factory's burning is good to be installed at present, usually can
Such situation is encountered, scene needs the floor changed on display to show, thus needs the journey on burning display again
Sequence has plenty of factory engineering teacher and goes live burning, has plenty of display returning factory's burning again, and many times live is aobvious
Show that device has installed, the cable of communication communicates it is difficult to take out with recording device all in hoistway.So back and forth, no
Only waste of manpower also wastes time；Secondly, display is needed at work on the video card being connected in host with video line, depending on
Frequency line and the keyboard chord being connect with host, mouse lines, cable and tone frequency channel wire keep the line after host cumbersome, easily break down,
And moving for display is limited by video line length, use is inconvenient.
Invention content
The purpose of the present invention is to provide a kind of new function Bluetooth wireless communications to change floor indicator.
In order to achieve the above objectives, present invention employs following technical schemes.
A kind of new function Bluetooth wireless communication modification floor indicator, including power supply, display module, controller module, solution
Code control module, sensor interface, microprocessor, the first bluetooth module and the serial ports for receiving the transmission of the first bluetooth module
Second bluetooth module of signal, the decoding control block are connected with the second bluetooth module and control module respectively, control mould
Block is connected with display module；The sensor interface acquires floor information for connecting external sensor；The microprocessor
Sensor interface is connected, the processing of data is used for.
First bluetooth module is connected with the USB interface of host.
The rs 232 serial interface signal includes character rs 232 serial interface signal and image rs 232 serial interface signal.
The technical solution of the application is that, using Bluetooth technology and display direct communication, the floor information that will be set exists
Directly change display thinks it is floor information by Bluetooth wireless communication.
The decoding control block includes ARM controller and the RAM and Flash that are connected with ARM controller, the second bluetooth
Module and OLED controllers are connected with ARM controller respectively.The source signal of host video card output is sent through host USB interface to the
The source signal is sent to the second bluetooth module, the letter that the second bluetooth module receives by one bluetooth module, the first bluetooth module
Number decoded control module is transferred to OLED controllers after accelerating, and corresponding letter is shown by OLED controllers driving OLED display screen
Breath.
A kind of control method of above-mentioned new function Bluetooth wireless communication modification floor indicator, includes the following steps：
Initialize OLED display screen and the first, second bluetooth module first, then carry out bluetooth connection, if connection not at
Work(then directly exits；If successful connection, judge whether to receive image, if receiving image, passes through OLED display screen
Show image；If being not received by image, judge whether to receive character data, if receiving character data, pass through
OLED display screen shows character, if character data is not received by, selects clear screen, prepares to receive picture number next time
According to.
Advantageous effect：This technology improvement, using Bluetooth technology, Bluetooth technology can control display with short-distance wireless eventually
End realizes the wireless transmission and display of image and character data, eliminates defect caused by wired connection, taken leave of live need
The problem of step complexity, floor is directly changed by the way of wireless communication, is not only saved the time when changing floor, transmission effect
Rate is high, and stability is good, can apply in multiple fields.
Factory is sent to the display of elevator erecting bed, repaiies the floor on display if necessary, has avoided scene
Mounted display removes the drawbacks of carrying out burning program again, directly carries out wireless blue tooth communication modification display floor letter
Breath not only saves the time in this way, uses manpower and material resources sparingly.The places such as the big market supermarket of flow of the people can be very good to avoid because
Elevator maintenance and cause personnel that cannot use elevator, reduce and complain sense, increase social civilization with it is harmonious.
Description of the drawings
Fig. 1 is the hardware block diagram of the application；
Fig. 2 is the software block diagram of the application；
Fig. 3 is the display system architectures block diagram based on bluetooth radio display of the application
Fig. 4 is the bluetooth protocol repertory structure diagram of the application；
Fig. 5 is the display control flow chart of the application.
Fig. 6 is a kind of principle schematic of digital floor indicator of the present invention；
Fig. 7 is that digital floor indicator uses schematic diagram in elevator.
Fig. 8 is the step flow chart of the application.
In figure：1, sensor interface 2, microprocessor 3, WiFi controllers 4, exchanger chip 5, power supply 6, camera shooting
Machine network interface 7, digital hard disc video recorder network interface 8, video camera 9, optoelectronic switch 10, barn door 11, car interlayer
12, digital floor indicator
Specific implementation mode
It elaborates with reference to the accompanying drawings and examples to the present invention.
Referring to Fig. 3, bluetooth radio display of the present invention includes power supply, display module, controller module, decoding control
Module, sensor interface, microprocessor, the first bluetooth module and the rs 232 serial interface signal for receiving the transmission of first bluetooth module
Second bluetooth module, the decoding control block are connected with the second bluetooth module and control module respectively, control module with it is aobvious
Show that module connects；The sensor interface acquires floor information for connecting external sensor；The microprocessor connection sensing
Device interface is used for the processing of data；The rs 232 serial interface signal includes character rs 232 serial interface signal and image rs 232 serial interface signal；The decoding control
Module includes ARM controller and the RAM being connected with ARM controller (memory) and Flash (flash memory), the second bluetooth module with
And OLED controllers are connected with ARM controller respectively.
The source signal of host video card output is sent through host USB interface to the first bluetooth module, and the first bluetooth module will be described
Source signal is sent to the second bluetooth module, and the decoded control module of the signal that the second bluetooth module receives is transferred to after accelerating
OLED controllers show corresponding information by OLED controllers driving OLED display screen.
Referring to Fig. 5, the control method of above-mentioned bluetooth radio display includes the following steps：
Initialize OLED display screen and the first, second bluetooth module first, then carry out bluetooth connection, if connection not at
Work(then directly exits；If successful connection, judge whether to receive image, if receiving image, passes through OLED display screen
Show image；If being not received by image, judge whether to receive character data, if receiving character data, pass through
OLED display screen shows character, if character data is not received by, selects clear screen, prepares to receive picture number next time
According to.
Embodiment one：
A kind of bluetooth wireless display system, in master-plan, which mainly consists of two parts：Host machine part and display
Terminal.Host machine part is responsible for control command and needs the transmission of display data, and display terminal is responsible for receiving and be shown.System knot
Structure is as shown in Figure 3.
Host machine part is configured with bluetooth module, is connect with PC hosts by USB interface.Display terminal is by with ARM micro-controls
Device processed is control module, bluetooth module and the OLED display screen and OLED controllers composition of core.
Host machine part and display terminal are communicated by the RFCOMM protocol layers of bluetooth protocol repertory.RFCOMM agreements provide
Serial data transmission, and up to 60 connections can be maintained simultaneously between 2 bluetooth equipments, it can support to leave serial end simultaneously
OBEX agreements in mouth application program and other applications.The structure diagram of bluetooth protocol repertory is as shown in Figure 4.
After system initialization, host machine part and display terminal establish bluetooth connection.After successful connection, PC host applications
Program sends the order of display by bluetooth module to display terminal, and display terminal carries out reception image data according to corresponding order
Or the operations such as character data, OLED display screen is then transmitted data to by OLED controllers.
Host machine part and display terminal all employ the bluetooth wireless receiving and dispatching of CSR companies BlueCore4-ROM chips composition
Module (abbreviation bluetooth module), the bluetooth radio receiving transmitting module include 2.4G radio frequencies, RAM read-write memories, the read-only storages of ROM
Device, base band DSP, MCU micro-control unit, the input of XTAL external clocks, SPI high-speed synchronous serial ports, Universal Asynchronous Receive/transmission
Device UART, PIO all-in-one machine, PCM pulse code modulation.
PC hosts are connected using USB interface with bluetooth module, and corresponding bluetooth module is micro- again by USB interface and ARM
The USB-HOST interfaces of controller are attached.The module can also use general USB Bluetooth adapter to substitute.
System software is equally divided into host machine part and display terminal part.Here Main Analysis display terminal partial software
Design, host machine part are similar with its.Display terminal subprogram includes：OLED display screen initializes, the initialization of bluetooth equipment,
The foundation of bluetooth connection and the transmission of image character data show etc. that several parts, program circuit are as shown in Figure 5.
Socket by establishing blue tooth RFCOMM protocol layer is attached.Connection can be with call function after being successfully established
The recv data host sides that either read readings host is sent then correspondingly adopt function send or write transmission data.It is logical
Letter can terminate to connect after terminating with call function close.
The bluetooth module of host machine part and display terminal has fixed Bluetooth address, and host side is directly with fixed bluetooth
The display terminal of location is attached.One host can be communicated with multiple display terminals, in different display terminals
Upper display image and character.
OLED display screen subprogram uses the framebuffer programming interface of linux kernel driver.
Framebuffer provides a kind of abstract processing for graphics hardware equipment, and application program is allowed to pass through well-defined interface
To access graphics hardware equipment.By framebuffer, video memory can be mapped to application program by application program with mmap functions
Virtual address space can show data to be shown write-in memory headroom on the screen.OLED display screen is initial
Change and bluetooth socket initialization connects after completing, image and character data can be sent by bluetooth.Bluetooth receives aobvious
Diagram picture is similar with the program of two parts of character, is all to read the life that host is sent by call function recv or read
It enables, judges then to receive data in an identical manner by program.
Embodiment two：
The present embodiment also provides a kind of scheme of WiFi controls, as shown in fig. 6, sensor interface 1, for connecting outside
Sensor acquires floor information；Microprocessor 2, microprocessor 2 connect sensor interface 1, are used for the processing of data；WiFi is controlled
Device 3, WiFi controllers 3 connect microprocessor 2, for sending network data；Exchanger chip 4, exchanger chip 4 connect WiFi
Controller 3 is connected to for realizing several equipment with network interface in same LAN；Power supply 5, power supply 5 respectively with micro- place
It manages device 2, WiFi controllers 3, exchanger chip 4 to connect, power supply is supplied to microprocessor 2, WiFi controllers 3, exchanger chip 4
Electricity；Camera network interface 6, camera network interface 6 are connect with exchanger chip 4, for connecting external video camera；Number
Hard disk video recorder network interface 7, digital hard disc video recorder network interface 7 are connect with exchanger chip 4, for connecting external number
Word hard disk video recorder.Wherein, microprocessor 2 is ARM, the model STM32 of use.3 model ENC28J60 of WiFi controllers,
4 model RTL8306M of exchanger chip.
STM32 series is based on aiming at the ARM for requiring the Embedded Application of high-performance, low cost, low-power consumption specially to design
Cortex-M3 kernels.It is divided into two different series by performance：" enhanced " series of STM32F103 and STM32F101 are " basic
Type " series.Enhanced series clock frequency reaches 72MHz, is the highest product of performance in similar product；Basic model clock frequency
With the performance that the price of 16 products obtains being substantially improved than 16 products it is the best choosing of 16 product users for 36MHz
It selects.The flash memory of all built-in 32K to the 128K of two series, the difference is that the combination of the maximum capacity and Peripheral Interface of SRAM.Clock
When frequency 72MHz, code is executed from flash memory, STM32 power consumption 36mA are 32 products least in power-consuming in the market, are equivalent to
0.5mA/MHz.The advantage of Cortex should be low-power consumption, the combination of low cost, high-performance (or 2).
ENC28J60 is to carry professional standard Serial Peripheral Interface (SPI) (Serial Peripheral Interface, SPI)
Independent WiFi controllers.It can be used as the WiFi interfaces of any controller equipped with SPI.ENC28J60 meets IEEE802.3
Whole specifications, use a series of packet filtering mechanism to limit incoming data packet.It additionally provides an internal DMA
Module is verified and is calculated with the IP of hardware supported to realize that rapid data is handled up.Communication with master controller is interrupted by two
Pin and SPI are realized.Two dedicated pins carry out network activity state instruction for connecting LED.
The main feature of ENC28J60 has：The WiFi controllers of compatible IEEE802.3 agreements, integrate MAC and 10base-T
Physical layer supports full and half duplex pattern, when data collision it is programmable it is automatic retransmit, SPI interface speed up to 10Mbps,
8K data receivers and transmission two-port RAM, provide the internal DMA controller of rapid data movement, configurable sends and receivees
Buffer size, two programmable LED outputs, two interrupt pins of 7 interrupt source of band, Transistor-Transistor Logic level input provide a variety of envelopes
Dress：SOIC/SSOP/SPDIP/QFN etc..
Digital floor indicator is aluminium alloy number floor indicator, and there are power input interface (POW), indicator light in front
(POW, RUN, NET1, NET2), camera network interface (NET1) and digital hard disc video recorder (abbreviation NVR) network interface
(NET2), rear panel has parameter/configuration interface (Progarm), sensor interface, camera power supply output interface.
As shown in fig. 7, digital floor indicator 12 is mounted in elevator, it is connected with video camera 8.Video camera is network shooting
Machine.Digital floor indicator 12 is also connected with optoelectronic switch 9, and optoelectronic switch 9 is set to after barn door 10.Above-mentioned apparatus is set to
11 top of car interlayer.
Operation principle using digital floor indicator is：(1) lift sensor acquires elevator up-down information.(2) micro-
Processor calculates floor number.(3) microprocessor is transmitted floor data by cable by WiFi controllers, exchanger chip
To IPC.(4) IPC updates display after receiving floor information.(5) video data stream sends NVR to by trailing cable and shows and deposit
Storage.
Embodiment three：
It is the step flow of one embodiment of the Bluetooth communication connection method of display provided by the invention referring to Fig. 8
Figure.In the present embodiment, the Bluetooth communication connection method of the display, mainly includes the following steps that：Step S201：Right
After the display is powered, judge whether to receive the Bluetooth communication connection request transmitted by external equipment.When described aobvious
When showing that device receives the Bluetooth communication connection request transmitted by external equipment, step S202 is executed；When the display does not receive
When to Bluetooth communication connection request transmitted by external equipment, step S203 is executed.Step S202：Using the display as from
Equipment controls the display and is operated in passive mode using the external equipment for sending out Bluetooth communication connection request as main equipment
It is lower to carry out the logical specification step S203 of point-to-point bluetooth with the external equipment：It controls the display and is operated in active mode
Under, it periodically searches for external equipment and carries out Bluetooth pairing, and carried out a little pair with an external equipment after Bluetooth pairing success
The Bluetooth communication of point, alternatively, carrying out the Bluetooth communication of one point for multiple address with multiple external equipments.In the present embodiment, it is set as master
Standby HUD can at most be communicated with 7 from equipment simultaneously, and can be synchronous from equipment holding but do not communicate with up to 256.
It can be forwarded by main equipment from equipment and from the Bluetooth communication between equipment.The bluetooth system being made of each bluetooth equipment
System can provide point-to-point interconnection (only there are two bluetooth equipments in Bluetooth system) or one point for multiple address connection type (bluetooth system
There are a main equipments and multiple from equipment in system).Wherein, on one point in multi-address connecting mode, channel distribution is in multiple bluetooths
In equipment；Also, the two or more bluetooth equipments of distribution in the same channel form a microgrid (Pico net),
Realization carries out short range data transmission between a plurality of bluetooth apparatuses.When it is implemented, the head-up display screen includes that bluetooth is set
Standby and microprocessor.Bluetooth communication is carried out by the bluetooth equipment with one or more external equipments to connect, by described micro-
Processor controls the bluetooth equipment and is switched between active mode and passive mode.Display provided in an embodiment of the present invention
The Bluetooth communication connection method of device (HUD), to HUD after the power is turned on, it is first determined whether receiving the indigo plant transmitted by external equipment
Tooth communication connection request is operated in passive mode if receiving request and carries out point-to-point Bluetooth communication with external equipment first
Connection is operated in aggressive mode if not receiving request and carries out point-to-point or one point for multiple address Bluetooth communication with external equipment and connect
It connects, thus the bluetooth equipment of display provided by the invention can effectively be operated in passive mode or be operated in actively
Mode, and priority task is in point-to-point passive mode.When it is implemented, the bluetooth equipment in HUD has had the initiative
In the working condition of mode or passive mode, technical solution provided by the invention can be automatic according to the variation of HUD application environments
Switch the operating mode of its internal bluetooth equipment, i.e.,：Passive mode is automatically switched to by active mode, alternatively, by passive side
Formula automatically switches to active mode.Referring to Fig. 3, it is another implementation of the Bluetooth communication connection method of display provided by the invention
The step flow chart of example.In the present embodiment, step S201~step in the operation principle and Fig. 2 of step S301~step S303
The operation principle of rapid S203 is identical, and details are not described herein.Further, the Bluetooth communication connection of display provided in this embodiment
Method further includes：When the display is operated under passive mode, and the external equipment currently connected actively disconnect with it is described aobvious
When showing the Bluetooth communication connection of device, step S304 is executed.Step S304：By the bluetooth operating mode of the display from passive side
Formula switches to active mode, periodically searches for external equipment and carries out Bluetooth pairing, and is outer with one after Bluetooth pairing success
Portion's equipment carries out point-to-point Bluetooth communication, alternatively, carrying out the Bluetooth communication of one point for multiple address with multiple external equipments.Specific implementation
When, when the Bluetooth device operation in HUD is under active mode, no matter whether current Bluetooth equipment has carried out indigo plant with external equipment
Tooth communicates to connect, and starts and periodically attempts to start bluetooth equipment search connection external equipment.If the bluetooth equipment in HUD does not have
Have to be used as from equipment by external equipment and connect, HUD attempts to connect the equipment (outside matched being most recently connected as main equipment
Bluetooth equipment).After attempting bluetooth connection failure, the microprocessor in HUD re-searches for the bluetooth equipment controlled in HUD outer
Portion's equipment.When it is implemented, when the Bluetooth device operation in HUD is in active mode, the bluetooth of HUD provided in this embodiment is logical
Believe that connection method further includes：Detection currently carries out the quantity of the successful external equipment of Bluetooth pairing with the display HUD.If working as
The preceding quantity that the successful external equipment of Bluetooth pairing is carried out with the display HUD is less than maximum pairing number N, then described aobvious
Show and adds paired device record in device HUD；Wherein, N ＞ 0；If it is successfully outer currently to carry out Bluetooth pairing with the display HUD
The quantity of portion's equipment is equal to maximum pairing number N, then deletes and temporally record earliest paired device.HUD under active mode
The number of the external equipment matched is less than preset total pairing number (maximum pairing number N), at least reserves a surplus
Feed system connects the automatic search and pairing of external bluetooth equipment；Also, after the new external bluetooth equipment success of pairing
Then start Bluetooth communication connection automatically.When the display is operated in active mode, according to the connection of the Bluetooth communication of preservation
Historical record sends out Bluetooth communication connection request to the one or more external equipments matched；If the display is connected
It connects response and then carries out Bluetooth communication with corresponding external equipment；The matched external equipment of search is restarted if connection failure.
The present embodiment completes automatic switchover of the HUD bluetooth equipments by passive mode to active mode as a result,.It should be noted that HUD
In built-in bluetooth equipment to switch to active mode from passive mode, occur only at the external bluetooth equipment as main equipment
In the case of actively disconnecting with the connection of the bluetooth equipment built in HUD.When microprocessor (MCU) built-in in HUD judges in HUD
Built-in bluetooth equipment has been disconnected and has been automatically switched under active mode when working, and MCU control bluetooth equipments re-start
Periodically attempt the external bluetooth equipment of search connection.In addition, HUD bluetooth equipments provided in an embodiment of the present invention can also realize by
Automatic switchover of the active mode to passive mode.As shown in figure 3, the Bluetooth communication connection method of the display, further includes：
When the display is operated under active mode, and receives the Bluetooth communication connection request transmitted by external equipment, execute
Step S305.Step S305：The display disconnection is controlled to connect with current all Bluetooth communications；And by the head-up display
Device is used as controls the head-up display work from equipment using the external equipment for sending out Bluetooth communication connection request as main equipment
Make to carry out point-to-point Bluetooth communication with external equipment under passive mode, by the bluetooth operating mode of the display from actively
Mode switches to passive mode.When it is implemented, when if HUD receives the Bluetooth connection request of external equipment, built in
Bluetooth equipment will to built in HUD MCU send message, inform there are external bluetooth equipment need match or connect (connection be
Can be carried out under the conditions of having matched) this bluetooth equipment.MCU built in HUD is received after message to the bluetooth equipment built in HUD
Instruction is sent, control bluetooth equipment disconnects current all connections, and Bluetooth communication company is carried out into passive mode and external equipment
It connects.Method provided in an embodiment of the present invention can further realize the bluetooth operating mode of HUD on the basis of Fig. 2 embodiments
Active mode automatically is switched to from passive mode, alternatively, automatically passive mode is switched to from active mode, without user's
Manual operation, therefore operation complexity is reduced, the communicative flexibility of bluetooth equipment in HUD is improved, is intelligently obtained common outer
The data information of portion's equipment is simultaneously exported to HUD display screen displays, and communication support is provided for the multifunctionality of HUD.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of new function Bluetooth wireless communication changes floor indicator, it is characterised in that：The new function Bluetooth wireless communication
Modification floor indicator include power supply, display module, controller module, decoding control block, sensor interface, microprocessor,
Second bluetooth module of the first bluetooth module and rs 232 serial interface signal for receiving the transmission of the first bluetooth module, the decoding control
Module is connected with the second bluetooth module and control module respectively, and control module is connected with display module；The sensor interface,
Floor information is acquired for connecting external sensor；The microprocessor connects sensor interface, is used for the processing of data.
2. a kind of new function Bluetooth wireless communication changes floor indicator according to claim 1, it is characterised in that：It is described aobvious
Show that module is OLED display.
3. a kind of new function Bluetooth wireless communication changes floor indicator according to claim 1, it is characterised in that：The control
Device module processed is OLED controllers.
4. a kind of new function Bluetooth wireless communication changes floor indicator according to claim 1, it is characterised in that：Described
One bluetooth module is connected with the USB interface of host.
5. a kind of new function Bluetooth wireless communication changes floor indicator according to claim 1, it is characterised in that：The electricity
Source is connect with microprocessor, WiFi controllers, exchanger chip respectively, the power supply to microprocessor, WiFi controllers, exchange
Machine chip power supply.
6. a kind of new function Bluetooth wireless communication changes floor indicator according to claim 1, it is characterised in that：The string
Message number includes character rs 232 serial interface signal and image rs 232 serial interface signal.
7. a kind of new function Bluetooth wireless communication changes floor indicator according to claim 1, it is characterised in that：The solution
Code control module includes ARM controller and the RAM and Flash that are connected with ARM controller, and the second bluetooth module and OLED are controlled
Device processed is connected with ARM controller respectively.
8. a kind of new function Bluetooth wireless communication changes floor indicator according to claim 1, it is characterised in that：Host is aobvious
The source signal for blocking output is sent through host USB interface to the first bluetooth module, and the source signal is sent to the by the first bluetooth module
Two bluetooth modules, the decoded control module of signal that the second bluetooth module receives are transferred to OLED controllers after accelerating, by
OLED controllers driving OLED display screen shows corresponding information.
9. a kind of new function Bluetooth wireless communication changes floor indicator according to claim 1, it is characterised in that：It is described aobvious
Show that device is aluminium alloy number floor indicator.
10. a kind of control method of bluetooth radio display as described in claim 1, it is characterised in that：Include the following steps：Just
Beginningization OLED display screen and the first, second bluetooth module, then carry out bluetooth connection, if connection is unsuccessful, directly exit；
If successful connection, judge whether to receive image, if receiving image, image is shown by OLED display screen；If
It is not received by image, then judges whether to receive character data, if receiving character data, is shown by OLED display screen
Character selects clear screen if character data is not received by, and prepares to receive image data next time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810429739.2A CN108647000A (en) | 2018-05-08 | 2018-05-08 | A kind of new function Bluetooth wireless communication modification floor indicator |
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| CN201810429739.2A CN108647000A (en) | 2018-05-08 | 2018-05-08 | A kind of new function Bluetooth wireless communication modification floor indicator |
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| CN108647000A true CN108647000A (en) | 2018-10-12 |
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| CN201810429739.2A Pending CN108647000A (en) | 2018-05-08 | 2018-05-08 | A kind of new function Bluetooth wireless communication modification floor indicator |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112218275A (en) * | 2020-10-10 | 2021-01-12 | 新中音私人有限公司 | MIDI apparatus and packet concatenation method |
| CN114120474A (en) * | 2021-11-29 | 2022-03-01 | 广东九联科技股份有限公司 | Automatic alarm system for illegal vehicle |
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| CN103744478A (en) * | 2013-12-26 | 2014-04-23 | 陕西科技大学 | Bluetooth wireless display and control method thereof |
| CN104085750A (en) * | 2014-06-27 | 2014-10-08 | 上海炎荣电子科技有限公司 | Digital floor indicator |
| WO2017101685A1 (en) * | 2015-12-15 | 2017-06-22 | 广州亿航智能技术有限公司 | Wireless communication device |
| CN208796227U (en) * | 2018-05-08 | 2019-04-26 | 江苏威尔曼科技有限公司 | A kind of new function Bluetooth wireless communication modification floor indicator |
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| CN103744478A (en) * | 2013-12-26 | 2014-04-23 | 陕西科技大学 | Bluetooth wireless display and control method thereof |
| CN104085750A (en) * | 2014-06-27 | 2014-10-08 | 上海炎荣电子科技有限公司 | Digital floor indicator |
| WO2017101685A1 (en) * | 2015-12-15 | 2017-06-22 | 广州亿航智能技术有限公司 | Wireless communication device |
| CN208796227U (en) * | 2018-05-08 | 2019-04-26 | 江苏威尔曼科技有限公司 | A kind of new function Bluetooth wireless communication modification floor indicator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112218275A (en) * | 2020-10-10 | 2021-01-12 | 新中音私人有限公司 | MIDI apparatus and packet concatenation method |
| CN114120474A (en) * | 2021-11-29 | 2022-03-01 | 广东九联科技股份有限公司 | Automatic alarm system for illegal vehicle |
| CN114120474B (en) * | 2021-11-29 | 2024-06-07 | 广东九联科技股份有限公司 | Automatic alarm system for illegal vehicles |
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